diff options
Diffstat (limited to 'grub-core/gfxmenu')
| -rw-r--r-- | grub-core/gfxmenu/font.c | 116 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gfxmenu.c | 150 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_box.c | 428 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_canvas.c | 278 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_circular_progress.c | 331 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_image.c | 270 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_label.c | 277 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_list.c | 953 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_progress_bar.c | 457 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_string_util.c | 206 | ||||
| -rw-r--r-- | grub-core/gfxmenu/gui_util.c | 101 | ||||
| -rw-r--r-- | grub-core/gfxmenu/icon_manager.c | 257 | ||||
| -rw-r--r-- | grub-core/gfxmenu/theme_loader.c | 828 | ||||
| -rw-r--r-- | grub-core/gfxmenu/view.c | 647 | ||||
| -rw-r--r-- | grub-core/gfxmenu/widget-box.c | 360 |
15 files changed, 5659 insertions, 0 deletions
diff --git a/grub-core/gfxmenu/font.c b/grub-core/gfxmenu/font.c new file mode 100644 index 0000000..756c24f --- /dev/null +++ b/grub-core/gfxmenu/font.c @@ -0,0 +1,116 @@ +/* font.c - Font API and font file loader. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2003,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/bufio.h> +#include <grub/dl.h> +#include <grub/file.h> +#include <grub/font.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/types.h> +#include <grub/video.h> +#include <grub/bitmap.h> +#include <grub/charset.h> +#include <grub/unicode.h> +#include <grub/fontformat.h> +#include <grub/gfxmenu_view.h> + +/* Draw a UTF-8 string of text on the current video render target. + The x coordinate specifies the starting x position for the first character, + while the y coordinate specifies the baseline position. + If the string contains a character that FONT does not contain, then + a glyph from another loaded font may be used instead. */ +grub_err_t +grub_font_draw_string (const char *str, grub_font_t font, + grub_video_color_t color, + int left_x, int baseline_y) +{ + int x; + grub_uint32_t *logical; + grub_ssize_t logical_len, visual_len; + struct grub_unicode_glyph *visual, *ptr; + grub_err_t err; + + logical_len = grub_utf8_to_ucs4_alloc (str, &logical, 0); + if (logical_len < 0) + return grub_errno; + + visual_len = grub_bidi_logical_to_visual (logical, logical_len, &visual, + 0, 0, 0, 0, 0, 0, 0); + grub_free (logical); + if (visual_len < 0) + return grub_errno; + + err = GRUB_ERR_NONE; + for (ptr = visual, x = left_x; ptr < visual + visual_len; ptr++) + { + struct grub_font_glyph *glyph; + glyph = grub_font_construct_glyph (font, ptr); + if (!glyph) + { + err = grub_errno; + goto out; + } + err = grub_font_draw_glyph (glyph, color, x, baseline_y); + if (err) + goto out; + x += glyph->device_width; + } + +out: + for (ptr = visual; ptr < visual + visual_len; ptr++) + grub_unicode_destroy_glyph (ptr); + grub_free (visual); + + return err; +} + +/* Get the width in pixels of the specified UTF-8 string, when rendered in + in the specified font (but falling back on other fonts for glyphs that + are missing). */ +int +grub_font_get_string_width (grub_font_t font, const char *str) +{ + int width = 0; + grub_uint32_t *ptr; + grub_ssize_t logical_len; + grub_uint32_t *logical; + + logical_len = grub_utf8_to_ucs4_alloc (str, &logical, 0); + if (logical_len < 0) + { + grub_errno = GRUB_ERR_NONE; + return 0; + } + + for (ptr = logical; ptr < logical + logical_len;) + { + struct grub_unicode_glyph glyph; + + ptr += grub_unicode_aglomerate_comb (ptr, + logical_len - (ptr - logical), + &glyph); + width += grub_font_get_constructed_device_width (font, &glyph); + + grub_unicode_destroy_glyph (&glyph); + } + grub_free (logical); + + return width; +} diff --git a/grub-core/gfxmenu/gfxmenu.c b/grub-core/gfxmenu/gfxmenu.c new file mode 100644 index 0000000..8a17dda --- /dev/null +++ b/grub-core/gfxmenu/gfxmenu.c @@ -0,0 +1,150 @@ +/* gfxmenu.c - Graphical menu interface controller. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/types.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/err.h> +#include <grub/dl.h> +#include <grub/command.h> +#include <grub/video.h> +#include <grub/gfxterm.h> +#include <grub/bitmap.h> +#include <grub/bitmap_scale.h> +#include <grub/term.h> +#include <grub/env.h> +#include <grub/normal.h> +#include <grub/gfxwidgets.h> +#include <grub/menu.h> +#include <grub/menu_viewer.h> +#include <grub/gfxmenu_model.h> +#include <grub/gfxmenu_view.h> +#include <grub/time.h> +#include <grub/i18n.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static grub_gfxmenu_view_t cached_view; + +static void +grub_gfxmenu_viewer_fini (void *data __attribute__ ((unused))) +{ +} + +/* FIXME: Previously 't' changed to text menu is it necessary? */ +static grub_err_t +grub_gfxmenu_try (int entry, grub_menu_t menu, int nested) +{ + grub_gfxmenu_view_t view = NULL; + const char *theme_path; + char *full_theme_path = 0; + struct grub_menu_viewer *instance; + grub_err_t err; + struct grub_video_mode_info mode_info; + + theme_path = grub_env_get ("theme"); + if (! theme_path) + return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"), + "theme"); + + err = grub_video_get_info (&mode_info); + if (err) + return err; + + instance = grub_zalloc (sizeof (*instance)); + if (!instance) + return grub_errno; + + if (theme_path[0] != '/' && theme_path[0] != '(') + { + const char *prefix; + prefix = grub_env_get ("prefix"); + full_theme_path = grub_xasprintf ("%s/themes/%s", + prefix, + theme_path); + } + + if (!cached_view || grub_strcmp (cached_view->theme_path, + full_theme_path ? : theme_path) != 0 + || cached_view->screen.width != mode_info.width + || cached_view->screen.height != mode_info.height) + { + grub_gfxmenu_view_destroy (cached_view); + /* Create the view. */ + cached_view = grub_gfxmenu_view_new (full_theme_path ? : theme_path, + mode_info.width, + mode_info.height); + } + grub_free (full_theme_path); + + if (! cached_view) + { + grub_free (instance); + return grub_errno; + } + + view = cached_view; + + view->double_repaint = (mode_info.mode_type + & GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED) + && !(mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP); + view->selected = entry; + view->menu = menu; + view->nested = nested; + view->first_timeout = -1; + + grub_video_set_viewport (0, 0, mode_info.width, mode_info.height); + if (view->double_repaint) + { + grub_video_swap_buffers (); + grub_video_set_viewport (0, 0, mode_info.width, mode_info.height); + } + + grub_gfxmenu_view_draw (view); + + instance->data = view; + instance->set_chosen_entry = grub_gfxmenu_set_chosen_entry; + instance->fini = grub_gfxmenu_viewer_fini; + instance->print_timeout = grub_gfxmenu_print_timeout; + instance->clear_timeout = grub_gfxmenu_clear_timeout; + + grub_menu_register_viewer (instance); + + return GRUB_ERR_NONE; +} + +GRUB_MOD_INIT (gfxmenu) +{ + struct grub_term_output *term; + + FOR_ACTIVE_TERM_OUTPUTS(term) + if (grub_gfxmenu_try_hook && term->fullscreen) + { + term->fullscreen (); + break; + } + + grub_gfxmenu_try_hook = grub_gfxmenu_try; +} + +GRUB_MOD_FINI (gfxmenu) +{ + grub_gfxmenu_view_destroy (cached_view); + grub_gfxmenu_try_hook = NULL; +} diff --git a/grub-core/gfxmenu/gui_box.c b/grub-core/gfxmenu/gui_box.c new file mode 100644 index 0000000..37bab3f --- /dev/null +++ b/grub-core/gfxmenu/gui_box.c @@ -0,0 +1,428 @@ +/* gui_box.c - GUI container that stack components. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/gui.h> +#include <grub/gui_string_util.h> + +struct component_node +{ + grub_gui_component_t component; + struct component_node *next; + struct component_node *prev; +}; + +typedef struct grub_gui_box *grub_gui_box_t; + +typedef void (*layout_func_t) (grub_gui_box_t self, int modify_layout, + unsigned *minimal_width, + unsigned *minimal_height); + +struct grub_gui_box +{ + struct grub_gui_container container; + + grub_gui_container_t parent; + grub_video_rect_t bounds; + char *id; + + /* Doubly linked list of components with dummy head & tail nodes. */ + struct component_node chead; + struct component_node ctail; + + /* The layout function: differs for vertical and horizontal boxes. */ + layout_func_t layout_func; +}; + +static void +box_destroy (void *vself) +{ + grub_gui_box_t self = vself; + struct component_node *cur; + struct component_node *next; + for (cur = self->chead.next; cur != &self->ctail; cur = next) + { + /* Copy the 'next' pointer, since we need it for the next iteration, + and we're going to free the memory it is stored in. */ + next = cur->next; + /* Destroy the child component. */ + cur->component->ops->destroy (cur->component); + /* Free the linked list node. */ + grub_free (cur); + } + grub_free (self); +} + +static const char * +box_get_id (void *vself) +{ + grub_gui_box_t self = vself; + return self->id; +} + +static int +box_is_instance (void *vself __attribute__((unused)), const char *type) +{ + return (grub_strcmp (type, "component") == 0 + || grub_strcmp (type, "container") == 0); +} + +static void +layout_horizontally (grub_gui_box_t self, int modify_layout, + unsigned *min_width, unsigned *min_height) +{ + /* Start at the left (chead) and set the x coordinates as we go right. */ + /* All components have their width set to the box's width. */ + + struct component_node *cur; + unsigned w = 0, mwfrac = 0, h = 0, x = 0; + grub_fixed_signed_t wfrac = 0; + int bogus_frac = 0; + + for (cur = self->chead.next; cur != &self->ctail; cur = cur->next) + { + grub_gui_component_t c = cur->component; + unsigned mw = 0, mh = 0; + + if (c->ops->get_minimal_size) + c->ops->get_minimal_size (c, &mw, &mh); + + if (c->h > (signed) h) + h = c->h; + if (mh > h) + h = mh; + wfrac += c->wfrac; + w += c->w; + if (mw - c->w > 0) + mwfrac += mw - c->w; + } + if (wfrac > GRUB_FIXED_1 || (w > 0 && wfrac == GRUB_FIXED_1)) + bogus_frac = 1; + + if (min_width) + { + if (wfrac < GRUB_FIXED_1) + *min_width = grub_fixed_sfs_divide (w, GRUB_FIXED_1 - wfrac); + else + *min_width = w; + if (*min_width < w + mwfrac) + *min_width = w + mwfrac; + } + if (min_height) + *min_height = h; + + if (!modify_layout) + return; + + for (cur = self->chead.next; cur != &self->ctail; cur = cur->next) + { + grub_video_rect_t r; + grub_gui_component_t c = cur->component; + unsigned mw = 0, mh = 0; + + r.x = x; + r.y = 0; + r.height = h; + + if (c->ops->get_minimal_size) + c->ops->get_minimal_size (c, &mw, &mh); + + r.width = c->w; + if (!bogus_frac) + r.width += grub_fixed_sfs_multiply (self->bounds.width, c->wfrac); + + if (r.width < mw) + r.width = mw; + + c->ops->set_bounds (c, &r); + + x += r.width; + } +} + +static void +layout_vertically (grub_gui_box_t self, int modify_layout, + unsigned *min_width, unsigned *min_height) +{ + /* Start at the top (chead) and set the y coordinates as we go rdown. */ + /* All components have their height set to the box's height. */ + + struct component_node *cur; + unsigned h = 0, mhfrac = 0, w = 0, y = 0; + grub_fixed_signed_t hfrac = 0; + int bogus_frac = 0; + + for (cur = self->chead.next; cur != &self->ctail; cur = cur->next) + { + grub_gui_component_t c = cur->component; + unsigned mw = 0, mh = 0; + + if (c->ops->get_minimal_size) + c->ops->get_minimal_size (c, &mw, &mh); + + if (c->w > (signed) w) + w = c->w; + if (mw > w) + w = mw; + hfrac += c->hfrac; + h += c->h; + if (mh - c->h > 0) + mhfrac += mh - c->h; + } + if (hfrac > GRUB_FIXED_1 || (h > 0 && hfrac == GRUB_FIXED_1)) + bogus_frac = 1; + + if (min_height) + { + if (hfrac < GRUB_FIXED_1) + *min_height = grub_fixed_sfs_divide (h, GRUB_FIXED_1 - hfrac); + else + *min_height = h; + if (*min_height < h + mhfrac) + *min_height = h + mhfrac; + } + if (min_width) + *min_width = w; + + if (!modify_layout) + return; + + for (cur = self->chead.next; cur != &self->ctail; cur = cur->next) + { + grub_video_rect_t r; + grub_gui_component_t c = cur->component; + unsigned mw = 0, mh = 0; + + r.x = 0; + r.y = y; + r.width = w; + + if (c->ops->get_minimal_size) + c->ops->get_minimal_size (c, &mw, &mh); + + r.height = c->h; + if (!bogus_frac) + r.height += grub_fixed_sfs_multiply (self->bounds.height, c->hfrac); + + if (r.height < mh) + r.height = mh; + + c->ops->set_bounds (c, &r); + + y += r.height; + } +} + +static void +box_paint (void *vself, const grub_video_rect_t *region) +{ + grub_gui_box_t self = vself; + + struct component_node *cur; + grub_video_rect_t vpsave; + + grub_video_area_status_t box_area_status; + grub_video_get_area_status (&box_area_status); + + grub_gui_set_viewport (&self->bounds, &vpsave); + for (cur = self->chead.next; cur != &self->ctail; cur = cur->next) + { + grub_gui_component_t comp = cur->component; + grub_video_rect_t r; + comp->ops->get_bounds(comp, &r); + + if (!grub_video_have_common_points (region, &r)) + continue; + + /* Paint the child. */ + if (box_area_status == GRUB_VIDEO_AREA_ENABLED + && grub_video_bounds_inside_region (&r, region)) + grub_video_set_area_status (GRUB_VIDEO_AREA_DISABLED); + comp->ops->paint (comp, region); + if (box_area_status == GRUB_VIDEO_AREA_ENABLED) + grub_video_set_area_status (GRUB_VIDEO_AREA_ENABLED); + } + grub_gui_restore_viewport (&vpsave); +} + +static void +box_set_parent (void *vself, grub_gui_container_t parent) +{ + grub_gui_box_t self = vself; + self->parent = parent; +} + +static grub_gui_container_t +box_get_parent (void *vself) +{ + grub_gui_box_t self = vself; + return self->parent; +} + +static void +box_set_bounds (void *vself, const grub_video_rect_t *bounds) +{ + grub_gui_box_t self = vself; + self->bounds = *bounds; + self->layout_func (self, 1, 0, 0); /* Relayout the children. */ +} + +static void +box_get_bounds (void *vself, grub_video_rect_t *bounds) +{ + grub_gui_box_t self = vself; + *bounds = self->bounds; +} + +/* The box's preferred size is based on the preferred sizes + of its children. */ +static void +box_get_minimal_size (void *vself, unsigned *width, unsigned *height) +{ + grub_gui_box_t self = vself; + self->layout_func (self, 0, width, height); /* Just calculate the size. */ +} + +static grub_err_t +box_set_property (void *vself, const char *name, const char *value) +{ + grub_gui_box_t self = vself; + if (grub_strcmp (name, "id") == 0) + { + grub_free (self->id); + if (value) + { + self->id = grub_strdup (value); + if (! self->id) + return grub_errno; + } + else + self->id = 0; + } + + return grub_errno; +} + +static void +box_add (void *vself, grub_gui_component_t comp) +{ + grub_gui_box_t self = vself; + struct component_node *node; + node = grub_malloc (sizeof (*node)); + if (! node) + return; /* Note: probably should handle the error. */ + node->component = comp; + /* Insert the node before the tail. */ + node->prev = self->ctail.prev; + node->prev->next = node; + node->next = &self->ctail; + node->next->prev = node; + + comp->ops->set_parent (comp, (grub_gui_container_t) self); + self->layout_func (self, 1, 0, 0); /* Relayout the children. */ +} + +static void +box_remove (void *vself, grub_gui_component_t comp) +{ + grub_gui_box_t self = vself; + struct component_node *cur; + for (cur = self->chead.next; cur != &self->ctail; cur = cur->next) + { + if (cur->component == comp) + { + /* Unlink 'cur' from the list. */ + cur->prev->next = cur->next; + cur->next->prev = cur->prev; + /* Free the node's memory (but don't destroy the component). */ + grub_free (cur); + /* Must not loop again, since 'cur' would be dereferenced! */ + return; + } + } +} + +static void +box_iterate_children (void *vself, + grub_gui_component_callback cb, void *userdata) +{ + grub_gui_box_t self = vself; + struct component_node *cur; + for (cur = self->chead.next; cur != &self->ctail; cur = cur->next) + cb (cur->component, userdata); +} + +static struct grub_gui_component_ops box_comp_ops = + { + .destroy = box_destroy, + .get_id = box_get_id, + .is_instance = box_is_instance, + .paint = box_paint, + .set_parent = box_set_parent, + .get_parent = box_get_parent, + .set_bounds = box_set_bounds, + .get_bounds = box_get_bounds, + .get_minimal_size = box_get_minimal_size, + .set_property = box_set_property + }; + +static struct grub_gui_container_ops box_ops = +{ + .add = box_add, + .remove = box_remove, + .iterate_children = box_iterate_children +}; + +/* Box constructor. Specify the appropriate layout function to create + a horizontal or vertical stacking box. */ +static grub_gui_box_t +box_new (layout_func_t layout_func) +{ + grub_gui_box_t box; + box = grub_zalloc (sizeof (*box)); + if (! box) + return 0; + box->container.ops = &box_ops; + box->container.component.ops = &box_comp_ops; + box->chead.next = &box->ctail; + box->ctail.prev = &box->chead; + box->layout_func = layout_func; + return box; +} + +/* Create a new container that stacks its child components horizontally, + from left to right. Each child get a width corresponding to its + preferred width. The height of each child is set the maximum of the + preferred heights of all children. */ +grub_gui_container_t +grub_gui_hbox_new (void) +{ + return (grub_gui_container_t) box_new (layout_horizontally); +} + +/* Create a new container that stacks its child components verticallyj, + from top to bottom. Each child get a height corresponding to its + preferred height. The width of each child is set the maximum of the + preferred widths of all children. */ +grub_gui_container_t +grub_gui_vbox_new (void) +{ + return (grub_gui_container_t) box_new (layout_vertically); +} diff --git a/grub-core/gfxmenu/gui_canvas.c b/grub-core/gfxmenu/gui_canvas.c new file mode 100644 index 0000000..a054912 --- /dev/null +++ b/grub-core/gfxmenu/gui_canvas.c @@ -0,0 +1,278 @@ +/* gui_canvas.c - GUI container allowing manually placed components. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/gui.h> +#include <grub/gui_string_util.h> + +/* TODO Add layering so that components can be properly overlaid. */ + +struct component_node +{ + grub_gui_component_t component; + struct component_node *next; +}; + +struct grub_gui_canvas +{ + struct grub_gui_container container; + + grub_gui_container_t parent; + grub_video_rect_t bounds; + char *id; + /* Component list (dummy head node). */ + struct component_node components; +}; + +typedef struct grub_gui_canvas *grub_gui_canvas_t; + +static void +canvas_destroy (void *vself) +{ + grub_gui_canvas_t self = vself; + struct component_node *cur; + struct component_node *next; + for (cur = self->components.next; cur; cur = next) + { + /* Copy the 'next' pointer, since we need it for the next iteration, + and we're going to free the memory it is stored in. */ + next = cur->next; + /* Destroy the child component. */ + cur->component->ops->destroy (cur->component); + /* Free the linked list node. */ + grub_free (cur); + } + grub_free (self); +} + +static const char * +canvas_get_id (void *vself) +{ + grub_gui_canvas_t self = vself; + return self->id; +} + +static int +canvas_is_instance (void *vself __attribute__((unused)), const char *type) +{ + return (grub_strcmp (type, "component") == 0 + || grub_strcmp (type, "container") == 0); +} + +static void +canvas_paint (void *vself, const grub_video_rect_t *region) +{ + grub_gui_canvas_t self = vself; + + struct component_node *cur; + grub_video_rect_t vpsave; + + grub_video_area_status_t canvas_area_status; + grub_video_get_area_status (&canvas_area_status); + + grub_gui_set_viewport (&self->bounds, &vpsave); + for (cur = self->components.next; cur; cur = cur->next) + { + grub_video_rect_t r; + grub_gui_component_t comp; + signed x, y, w, h; + + comp = cur->component; + + w = grub_fixed_sfs_multiply (self->bounds.width, comp->wfrac) + comp->w; + h = grub_fixed_sfs_multiply (self->bounds.height, comp->hfrac) + comp->h; + x = grub_fixed_sfs_multiply (self->bounds.width, comp->xfrac) + comp->x; + y = grub_fixed_sfs_multiply (self->bounds.height, comp->yfrac) + comp->y; + + if (comp->ops->get_minimal_size) + { + unsigned mw; + unsigned mh; + comp->ops->get_minimal_size (comp, &mw, &mh); + if (w < (signed) mw) + w = mw; + if (h < (signed) mh) + h = mh; + } + + /* Sanity checks. */ + if (w <= 0) + w = 32; + if (h <= 0) + h = 32; + + if (x >= (signed) self->bounds.width) + x = self->bounds.width - 32; + if (y >= (signed) self->bounds.height) + y = self->bounds.height - 32; + + if (x < 0) + x = 0; + if (y < 0) + y = 0; + + if (x + w >= (signed) self->bounds.width) + w = self->bounds.width - x; + if (y + h >= (signed) self->bounds.height) + h = self->bounds.height - y; + + r.x = x; + r.y = y; + r.width = w; + r.height = h; + comp->ops->set_bounds (comp, &r); + + if (!grub_video_have_common_points (region, &r)) + continue; + + /* Paint the child. */ + if (canvas_area_status == GRUB_VIDEO_AREA_ENABLED + && grub_video_bounds_inside_region (&r, region)) + grub_video_set_area_status (GRUB_VIDEO_AREA_DISABLED); + comp->ops->paint (comp, region); + if (canvas_area_status == GRUB_VIDEO_AREA_ENABLED) + grub_video_set_area_status (GRUB_VIDEO_AREA_ENABLED); + } + grub_gui_restore_viewport (&vpsave); +} + +static void +canvas_set_parent (void *vself, grub_gui_container_t parent) +{ + grub_gui_canvas_t self = vself; + self->parent = parent; +} + +static grub_gui_container_t +canvas_get_parent (void *vself) +{ + grub_gui_canvas_t self = vself; + return self->parent; +} + +static void +canvas_set_bounds (void *vself, const grub_video_rect_t *bounds) +{ + grub_gui_canvas_t self = vself; + self->bounds = *bounds; +} + +static void +canvas_get_bounds (void *vself, grub_video_rect_t *bounds) +{ + grub_gui_canvas_t self = vself; + *bounds = self->bounds; +} + +static grub_err_t +canvas_set_property (void *vself, const char *name, const char *value) +{ + grub_gui_canvas_t self = vself; + if (grub_strcmp (name, "id") == 0) + { + grub_free (self->id); + if (value) + { + self->id = grub_strdup (value); + if (! self->id) + return grub_errno; + } + else + self->id = 0; + } + return grub_errno; +} + +static void +canvas_add (void *vself, grub_gui_component_t comp) +{ + grub_gui_canvas_t self = vself; + struct component_node *node; + node = grub_malloc (sizeof (*node)); + if (! node) + return; /* Note: probably should handle the error. */ + node->component = comp; + node->next = self->components.next; + self->components.next = node; + comp->ops->set_parent (comp, (grub_gui_container_t) self); +} + +static void +canvas_remove (void *vself, grub_gui_component_t comp) +{ + grub_gui_canvas_t self = vself; + struct component_node *cur; + struct component_node *prev; + prev = &self->components; + for (cur = self->components.next; cur; prev = cur, cur = cur->next) + { + if (cur->component == comp) + { + /* Unlink 'cur' from the list. */ + prev->next = cur->next; + /* Free the node's memory (but don't destroy the component). */ + grub_free (cur); + /* Must not loop again, since 'cur' would be dereferenced! */ + return; + } + } +} + +static void +canvas_iterate_children (void *vself, + grub_gui_component_callback cb, void *userdata) +{ + grub_gui_canvas_t self = vself; + struct component_node *cur; + for (cur = self->components.next; cur; cur = cur->next) + cb (cur->component, userdata); +} + +static struct grub_gui_component_ops canvas_comp_ops = +{ + .destroy = canvas_destroy, + .get_id = canvas_get_id, + .is_instance = canvas_is_instance, + .paint = canvas_paint, + .set_parent = canvas_set_parent, + .get_parent = canvas_get_parent, + .set_bounds = canvas_set_bounds, + .get_bounds = canvas_get_bounds, + .set_property = canvas_set_property +}; + +static struct grub_gui_container_ops canvas_ops = +{ + .add = canvas_add, + .remove = canvas_remove, + .iterate_children = canvas_iterate_children +}; + +grub_gui_container_t +grub_gui_canvas_new (void) +{ + grub_gui_canvas_t canvas; + canvas = grub_zalloc (sizeof (*canvas)); + if (! canvas) + return 0; + canvas->container.ops = &canvas_ops; + canvas->container.component.ops = &canvas_comp_ops; + return (grub_gui_container_t) canvas; +} diff --git a/grub-core/gfxmenu/gui_circular_progress.c b/grub-core/gfxmenu/gui_circular_progress.c new file mode 100644 index 0000000..7578bfb --- /dev/null +++ b/grub-core/gfxmenu/gui_circular_progress.c @@ -0,0 +1,331 @@ +/* gui_circular_process.c - GUI circular progress indicator component. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/gui.h> +#include <grub/font.h> +#include <grub/gui_string_util.h> +#include <grub/gfxmenu_view.h> +#include <grub/gfxwidgets.h> +#include <grub/trig.h> + +struct grub_gui_circular_progress +{ + struct grub_gui_progress progress; + + grub_gui_container_t parent; + grub_video_rect_t bounds; + char *id; + int visible; + int start; + int end; + int value; + unsigned num_ticks; + int start_angle; + int ticks_disappear; + char *theme_dir; + int need_to_load_pixmaps; + char *center_file; + char *tick_file; + struct grub_video_bitmap *center_bitmap; + struct grub_video_bitmap *tick_bitmap; +}; + +typedef struct grub_gui_circular_progress *circular_progress_t; + +static void +circprog_destroy (void *vself) +{ + circular_progress_t self = vself; + grub_gfxmenu_timeout_unregister ((grub_gui_component_t) self); + grub_free (self); +} + +static const char * +circprog_get_id (void *vself) +{ + circular_progress_t self = vself; + return self->id; +} + +static int +circprog_is_instance (void *vself __attribute__((unused)), const char *type) +{ + return grub_strcmp (type, "component") == 0; +} + +static struct grub_video_bitmap * +load_bitmap (const char *dir, const char *file) +{ + struct grub_video_bitmap *bitmap; + char *abspath; + + /* Check arguments. */ + if (! dir || ! file) + return 0; + + /* Resolve to an absolute path. */ + abspath = grub_resolve_relative_path (dir, file); + if (! abspath) + return 0; + + /* Load the image. */ + grub_errno = GRUB_ERR_NONE; + grub_video_bitmap_load (&bitmap, abspath); + grub_errno = GRUB_ERR_NONE; + + grub_free (abspath); + return bitmap; +} + +static int +check_pixmaps (circular_progress_t self) +{ + if (self->need_to_load_pixmaps) + { + if (self->center_bitmap) + grub_video_bitmap_destroy (self->center_bitmap); + self->center_bitmap = load_bitmap (self->theme_dir, self->center_file); + self->tick_bitmap = load_bitmap (self->theme_dir, self->tick_file); + self->need_to_load_pixmaps = 0; + } + + return (self->center_bitmap != 0 && self->tick_bitmap != 0); +} + +static void +circprog_paint (void *vself, const grub_video_rect_t *region) +{ + circular_progress_t self = vself; + + if (! self->visible) + return; + + if (!grub_video_have_common_points (region, &self->bounds)) + return; + + if (! check_pixmaps (self)) + return; + + grub_video_rect_t vpsave; + grub_gui_set_viewport (&self->bounds, &vpsave); + + int width = self->bounds.width; + int height = self->bounds.height; + int center_width = grub_video_bitmap_get_width (self->center_bitmap); + int center_height = grub_video_bitmap_get_height (self->center_bitmap); + int tick_width = grub_video_bitmap_get_width (self->tick_bitmap); + int tick_height = grub_video_bitmap_get_height (self->tick_bitmap); + grub_video_blit_bitmap (self->center_bitmap, GRUB_VIDEO_BLIT_BLEND, + (width - center_width) / 2, + (height - center_height) / 2, 0, 0, + center_width, center_height); + + if (self->num_ticks) + { + int radius = grub_min (height, width) / 2 - grub_max (tick_height, tick_width) / 2 - 1; + unsigned nticks; + unsigned tick_begin; + unsigned tick_end; + if (self->end <= self->start + || self->value <= self->start) + nticks = 0; + else + nticks = ((unsigned) (self->num_ticks + * (self->value - self->start))) + / ((unsigned) (self->end - self->start)); + /* Do ticks appear or disappear as the value approached the end? */ + if (self->ticks_disappear) + { + tick_begin = nticks; + tick_end = self->num_ticks; + } + else + { + tick_begin = 0; + tick_end = nticks; + } + + unsigned i; + for (i = tick_begin; i < tick_end; i++) + { + int x; + int y; + int angle; + + /* Calculate the location of the tick. */ + angle = self->start_angle + + i * GRUB_TRIG_ANGLE_MAX / self->num_ticks; + x = width / 2 + (grub_cos (angle) * radius / GRUB_TRIG_FRACTION_SCALE); + y = height / 2 + (grub_sin (angle) * radius / GRUB_TRIG_FRACTION_SCALE); + + /* Adjust (x,y) so the tick is centered. */ + x -= tick_width / 2; + y -= tick_height / 2; + + /* Draw the tick. */ + grub_video_blit_bitmap (self->tick_bitmap, GRUB_VIDEO_BLIT_BLEND, + x, y, 0, 0, tick_width, tick_height); + } + } + grub_gui_restore_viewport (&vpsave); +} + +static void +circprog_set_parent (void *vself, grub_gui_container_t parent) +{ + circular_progress_t self = vself; + self->parent = parent; +} + +static grub_gui_container_t +circprog_get_parent (void *vself) +{ + circular_progress_t self = vself; + return self->parent; +} + +static void +circprog_set_bounds (void *vself, const grub_video_rect_t *bounds) +{ + circular_progress_t self = vself; + self->bounds = *bounds; +} + +static void +circprog_get_bounds (void *vself, grub_video_rect_t *bounds) +{ + circular_progress_t self = vself; + *bounds = self->bounds; +} + +static void +circprog_set_state (void *vself, int visible, int start, + int current, int end) +{ + circular_progress_t self = vself; + self->visible = visible; + self->start = start; + self->value = current; + self->end = end; +} + +static int +parse_angle (const char *value) +{ + const char *ptr; + int angle; + + angle = grub_strtol (value, &ptr, 10); + if (grub_errno) + return 0; + while (grub_isspace (*ptr)) + ptr++; + if (grub_strcmp (ptr, "deg") == 0 + /* Unicode symbol of degrees (a circle, U+b0). Put here in UTF-8 to + avoid potential problem with text file reesncoding */ + || grub_strcmp (ptr, "\xc2\xb0") == 0) + angle = grub_divide_round (angle * 64, 90); + return angle; +} + +static grub_err_t +circprog_set_property (void *vself, const char *name, const char *value) +{ + circular_progress_t self = vself; + if (grub_strcmp (name, "num_ticks") == 0) + { + self->num_ticks = grub_strtoul (value, 0, 10); + } + else if (grub_strcmp (name, "start_angle") == 0) + { + self->start_angle = parse_angle (value); + } + else if (grub_strcmp (name, "ticks_disappear") == 0) + { + self->ticks_disappear = grub_strcmp (value, "false") != 0; + } + else if (grub_strcmp (name, "center_bitmap") == 0) + { + self->need_to_load_pixmaps = 1; + grub_free (self->center_file); + self->center_file = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "tick_bitmap") == 0) + { + self->need_to_load_pixmaps = 1; + grub_free (self->tick_file); + self->tick_file = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "theme_dir") == 0) + { + self->need_to_load_pixmaps = 1; + grub_free (self->theme_dir); + self->theme_dir = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "id") == 0) + { + grub_gfxmenu_timeout_unregister ((grub_gui_component_t) self); + grub_free (self->id); + if (value) + self->id = grub_strdup (value); + else + self->id = 0; + if (self->id && grub_strcmp (self->id, GRUB_GFXMENU_TIMEOUT_COMPONENT_ID) + == 0) + grub_gfxmenu_timeout_register ((grub_gui_component_t) self, + circprog_set_state); + } + return grub_errno; +} + +static struct grub_gui_component_ops circprog_ops = +{ + .destroy = circprog_destroy, + .get_id = circprog_get_id, + .is_instance = circprog_is_instance, + .paint = circprog_paint, + .set_parent = circprog_set_parent, + .get_parent = circprog_get_parent, + .set_bounds = circprog_set_bounds, + .get_bounds = circprog_get_bounds, + .set_property = circprog_set_property +}; + +static struct grub_gui_progress_ops circprog_prog_ops = + { + .set_state = circprog_set_state + }; + +grub_gui_component_t +grub_gui_circular_progress_new (void) +{ + circular_progress_t self; + self = grub_zalloc (sizeof (*self)); + if (! self) + return 0; + self->progress.ops = &circprog_prog_ops; + self->progress.component.ops = &circprog_ops; + self->visible = 1; + self->num_ticks = 64; + self->start_angle = -64; + + return (grub_gui_component_t) self; +} diff --git a/grub-core/gfxmenu/gui_image.c b/grub-core/gfxmenu/gui_image.c new file mode 100644 index 0000000..6b2e976 --- /dev/null +++ b/grub-core/gfxmenu/gui_image.c @@ -0,0 +1,270 @@ +/* gui_image.c - GUI component to display an image. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/gui.h> +#include <grub/gui_string_util.h> +#include <grub/bitmap.h> +#include <grub/bitmap_scale.h> + +struct grub_gui_image +{ + struct grub_gui_component component; + + grub_gui_container_t parent; + grub_video_rect_t bounds; + char *id; + char *theme_dir; + struct grub_video_bitmap *raw_bitmap; + struct grub_video_bitmap *bitmap; +}; + +typedef struct grub_gui_image *grub_gui_image_t; + +static void +image_destroy (void *vself) +{ + grub_gui_image_t self = vself; + + /* Free the scaled bitmap, unless it's a reference to the raw bitmap. */ + if (self->bitmap && (self->bitmap != self->raw_bitmap)) + grub_video_bitmap_destroy (self->bitmap); + if (self->raw_bitmap) + grub_video_bitmap_destroy (self->raw_bitmap); + + grub_free (self); +} + +static const char * +image_get_id (void *vself) +{ + grub_gui_image_t self = vself; + return self->id; +} + +static int +image_is_instance (void *vself __attribute__((unused)), const char *type) +{ + return grub_strcmp (type, "component") == 0; +} + +static void +image_paint (void *vself, const grub_video_rect_t *region) +{ + grub_gui_image_t self = vself; + grub_video_rect_t vpsave; + + if (! self->bitmap) + return; + if (!grub_video_have_common_points (region, &self->bounds)) + return; + + grub_gui_set_viewport (&self->bounds, &vpsave); + grub_video_blit_bitmap (self->bitmap, GRUB_VIDEO_BLIT_BLEND, + 0, 0, 0, 0, + grub_video_bitmap_get_width (self->bitmap), + grub_video_bitmap_get_height (self->bitmap)); + grub_gui_restore_viewport (&vpsave); +} + +static void +image_set_parent (void *vself, grub_gui_container_t parent) +{ + grub_gui_image_t self = vself; + self->parent = parent; +} + +static grub_gui_container_t +image_get_parent (void *vself) +{ + grub_gui_image_t self = vself; + return self->parent; +} + +static grub_err_t +rescale_image (grub_gui_image_t self) +{ + signed width; + signed height; + + if (! self->raw_bitmap) + { + if (self->bitmap) + { + grub_video_bitmap_destroy (self->bitmap); + self->bitmap = 0; + } + return grub_errno; + } + + width = self->bounds.width; + height = self->bounds.height; + + if (self->bitmap + && ((signed) grub_video_bitmap_get_width (self->bitmap) == width) + && ((signed) grub_video_bitmap_get_height (self->bitmap) == height)) + { + /* Nothing to do; already the right size. */ + return grub_errno; + } + + /* Free any old scaled bitmap, + *unless* it's a reference to the raw bitmap. */ + if (self->bitmap && (self->bitmap != self->raw_bitmap)) + grub_video_bitmap_destroy (self->bitmap); + + self->bitmap = 0; + + /* Create a scaled bitmap, unless the requested size is the same + as the raw size -- in that case a reference is made. */ + if ((signed) grub_video_bitmap_get_width (self->raw_bitmap) == width + && (signed) grub_video_bitmap_get_height (self->raw_bitmap) == height) + { + self->bitmap = self->raw_bitmap; + return grub_errno; + } + + /* Don't scale to an invalid size. */ + if (width <= 0 || height <= 0) + return grub_errno; + + /* Create the scaled bitmap. */ + grub_video_bitmap_create_scaled (&self->bitmap, + width, + height, + self->raw_bitmap, + GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST); + return grub_errno; +} + +static void +image_set_bounds (void *vself, const grub_video_rect_t *bounds) +{ + grub_gui_image_t self = vself; + self->bounds = *bounds; + rescale_image (self); +} + +static void +image_get_bounds (void *vself, grub_video_rect_t *bounds) +{ + grub_gui_image_t self = vself; + *bounds = self->bounds; +} + +/* FIXME: inform rendering system it's not forced minimum. */ +static void +image_get_minimal_size (void *vself, unsigned *width, unsigned *height) +{ + grub_gui_image_t self = vself; + + if (self->raw_bitmap) + { + *width = grub_video_bitmap_get_width (self->raw_bitmap); + *height = grub_video_bitmap_get_height (self->raw_bitmap); + } + else + { + *width = 0; + *height = 0; + } +} + +static grub_err_t +load_image (grub_gui_image_t self, const char *path) +{ + struct grub_video_bitmap *bitmap; + if (grub_video_bitmap_load (&bitmap, path) != GRUB_ERR_NONE) + return grub_errno; + + if (self->bitmap && (self->bitmap != self->raw_bitmap)) + { + grub_video_bitmap_destroy (self->bitmap); + self->bitmap = 0; + } + if (self->raw_bitmap) + grub_video_bitmap_destroy (self->raw_bitmap); + + self->raw_bitmap = bitmap; + return rescale_image (self); +} + +static grub_err_t +image_set_property (void *vself, const char *name, const char *value) +{ + grub_gui_image_t self = vself; + if (grub_strcmp (name, "theme_dir") == 0) + { + grub_free (self->theme_dir); + self->theme_dir = grub_strdup (value); + } + else if (grub_strcmp (name, "file") == 0) + { + char *absvalue; + grub_err_t err; + + /* Resolve to an absolute path. */ + if (! self->theme_dir) + return grub_error (GRUB_ERR_BUG, "unspecified theme_dir"); + absvalue = grub_resolve_relative_path (self->theme_dir, value); + if (! absvalue) + return grub_errno; + + err = load_image (self, absvalue); + grub_free (absvalue); + + return err; + } + else if (grub_strcmp (name, "id") == 0) + { + grub_free (self->id); + if (value) + self->id = grub_strdup (value); + else + self->id = 0; + } + return grub_errno; +} + +static struct grub_gui_component_ops image_ops = +{ + .destroy = image_destroy, + .get_id = image_get_id, + .is_instance = image_is_instance, + .paint = image_paint, + .set_parent = image_set_parent, + .get_parent = image_get_parent, + .set_bounds = image_set_bounds, + .get_bounds = image_get_bounds, + .get_minimal_size = image_get_minimal_size, + .set_property = image_set_property +}; + +grub_gui_component_t +grub_gui_image_new (void) +{ + grub_gui_image_t image; + image = grub_zalloc (sizeof (*image)); + if (! image) + return 0; + image->component.ops = &image_ops; + return (grub_gui_component_t) image; +} + diff --git a/grub-core/gfxmenu/gui_label.c b/grub-core/gfxmenu/gui_label.c new file mode 100644 index 0000000..1c19054 --- /dev/null +++ b/grub-core/gfxmenu/gui_label.c @@ -0,0 +1,277 @@ +/* gui_label.c - GUI component to display a line of text. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/gui.h> +#include <grub/font.h> +#include <grub/gui_string_util.h> +#include <grub/i18n.h> +#include <grub/color.h> + +static const char *align_options[] = +{ + "left", + "center", + "right", + 0 +}; + +enum align_mode { + align_left, + align_center, + align_right +}; + +struct grub_gui_label +{ + struct grub_gui_component comp; + + grub_gui_container_t parent; + grub_video_rect_t bounds; + char *id; + int visible; + char *text; + char *template; + grub_font_t font; + grub_video_rgba_color_t color; + int value; + enum align_mode align; +}; + +typedef struct grub_gui_label *grub_gui_label_t; + +static void +label_destroy (void *vself) +{ + grub_gui_label_t self = vself; + grub_gfxmenu_timeout_unregister ((grub_gui_component_t) self); + grub_free (self->text); + grub_free (self->template); + grub_free (self); +} + +static const char * +label_get_id (void *vself) +{ + grub_gui_label_t self = vself; + return self->id; +} + +static int +label_is_instance (void *vself __attribute__((unused)), const char *type) +{ + return grub_strcmp (type, "component") == 0; +} + +static void +label_paint (void *vself, const grub_video_rect_t *region) +{ + grub_gui_label_t self = vself; + + if (! self->visible) + return; + + if (!grub_video_have_common_points (region, &self->bounds)) + return; + + /* Calculate the starting x coordinate. */ + int left_x; + if (self->align == align_left) + left_x = 0; + else if (self->align == align_center) + left_x = (self->bounds.width + - grub_font_get_string_width (self->font, self->text)) / 2; + else if (self->align == align_right) + left_x = (self->bounds.width + - grub_font_get_string_width (self->font, self->text)); + else + return; /* Invalid alignment. */ + + if (left_x < 0 || left_x > (int) self->bounds.width) + left_x = 0; + + grub_video_rect_t vpsave; + grub_gui_set_viewport (&self->bounds, &vpsave); + grub_font_draw_string (self->text, + self->font, + grub_video_map_rgba_color (self->color), + left_x, + grub_font_get_ascent (self->font)); + grub_gui_restore_viewport (&vpsave); +} + +static void +label_set_parent (void *vself, grub_gui_container_t parent) +{ + grub_gui_label_t self = vself; + self->parent = parent; +} + +static grub_gui_container_t +label_get_parent (void *vself) +{ + grub_gui_label_t self = vself; + return self->parent; +} + +static void +label_set_bounds (void *vself, const grub_video_rect_t *bounds) +{ + grub_gui_label_t self = vself; + self->bounds = *bounds; +} + +static void +label_get_bounds (void *vself, grub_video_rect_t *bounds) +{ + grub_gui_label_t self = vself; + *bounds = self->bounds; +} + +static void +label_get_minimal_size (void *vself, unsigned *width, unsigned *height) +{ + grub_gui_label_t self = vself; + *width = grub_font_get_string_width (self->font, self->text); + *height = (grub_font_get_ascent (self->font) + + grub_font_get_descent (self->font)); +} + +#pragma GCC diagnostic ignored "-Wformat-nonliteral" + +static void +label_set_state (void *vself, int visible, int start __attribute__ ((unused)), + int current, int end __attribute__ ((unused))) +{ + grub_gui_label_t self = vself; + self->value = -current; + self->visible = visible; + grub_free (self->text); + self->text = grub_xasprintf (self->template ? : "%d", self->value); +} + +static grub_err_t +label_set_property (void *vself, const char *name, const char *value) +{ + grub_gui_label_t self = vself; + if (grub_strcmp (name, "text") == 0) + { + grub_free (self->text); + grub_free (self->template); + if (! value) + { + self->template = NULL; + self->text = grub_strdup (""); + } + else + { + if (grub_strcmp (value, "@KEYMAP_LONG@") == 0) + value = _("Press enter to boot the selected OS, " + "`e' to edit the commands before booting " + "or `c' for a command-line. ESC to return previous menu."); + else if (grub_strcmp (value, "@KEYMAP_MIDDLE@") == 0) + value = _("Press enter to boot the selected OS, " + "`e' to edit the commands before booting " + "or `c' for a command-line."); + else if (grub_strcmp (value, "@KEYMAP_SHORT@") == 0) + value = _("enter: boot, `e': options, `c': cmd-line"); + /* FIXME: Add more templates here if needed. */ + + if (grub_printf_fmt_check(value, "%d") != GRUB_ERR_NONE) + value = ""; /* Unsupported format. */ + + self->template = grub_strdup (value); + self->text = grub_xasprintf (value, self->value); + } + } + else if (grub_strcmp (name, "font") == 0) + { + self->font = grub_font_get (value); + } + else if (grub_strcmp (name, "color") == 0) + { + grub_video_parse_color (value, &self->color); + } + else if (grub_strcmp (name, "align") == 0) + { + int i; + for (i = 0; align_options[i]; i++) + { + if (grub_strcmp (align_options[i], value) == 0) + { + self->align = i; /* Set the alignment mode. */ + break; + } + } + } + else if (grub_strcmp (name, "visible") == 0) + { + self->visible = grub_strcmp (value, "false") != 0; + } + else if (grub_strcmp (name, "id") == 0) + { + grub_gfxmenu_timeout_unregister ((grub_gui_component_t) self); + grub_free (self->id); + if (value) + self->id = grub_strdup (value); + else + self->id = 0; + if (self->id && grub_strcmp (self->id, GRUB_GFXMENU_TIMEOUT_COMPONENT_ID) + == 0) + grub_gfxmenu_timeout_register ((grub_gui_component_t) self, + label_set_state); + } + return GRUB_ERR_NONE; +} + +#pragma GCC diagnostic error "-Wformat-nonliteral" + +static struct grub_gui_component_ops label_ops = +{ + .destroy = label_destroy, + .get_id = label_get_id, + .is_instance = label_is_instance, + .paint = label_paint, + .set_parent = label_set_parent, + .get_parent = label_get_parent, + .set_bounds = label_set_bounds, + .get_bounds = label_get_bounds, + .get_minimal_size = label_get_minimal_size, + .set_property = label_set_property +}; + +grub_gui_component_t +grub_gui_label_new (void) +{ + grub_gui_label_t label; + label = grub_zalloc (sizeof (*label)); + if (! label) + return 0; + label->comp.ops = &label_ops; + label->visible = 1; + label->text = grub_strdup (""); + label->font = grub_font_get ("Unknown Regular 16"); + label->color.red = 0; + label->color.green = 0; + label->color.blue = 0; + label->color.alpha = 255; + label->align = align_left; + return (grub_gui_component_t) label; +} diff --git a/grub-core/gfxmenu/gui_list.c b/grub-core/gfxmenu/gui_list.c new file mode 100644 index 0000000..df334a6 --- /dev/null +++ b/grub-core/gfxmenu/gui_list.c @@ -0,0 +1,953 @@ +/* gui_list.c - GUI component to display a selectable list of items. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/gui.h> +#include <grub/gui_string_util.h> +#include <grub/gfxmenu_view.h> +#include <grub/gfxwidgets.h> +#include <grub/color.h> + +enum scrollbar_slice_mode { + SCROLLBAR_SLICE_WEST, + SCROLLBAR_SLICE_CENTER, + SCROLLBAR_SLICE_EAST +}; + +struct grub_gui_list_impl +{ + struct grub_gui_list list; + + grub_gui_container_t parent; + grub_video_rect_t bounds; + char *id; + int visible; + + int icon_width; + int icon_height; + int item_height; + int item_padding; + int item_icon_space; + int item_spacing; + grub_font_t item_font; + int selected_item_font_inherit; + grub_font_t selected_item_font; + grub_video_rgba_color_t item_color; + int selected_item_color_inherit; + grub_video_rgba_color_t selected_item_color; + + int draw_scrollbar; + int need_to_recreate_scrollbar; + char *scrollbar_frame_pattern; + char *scrollbar_thumb_pattern; + grub_gfxmenu_box_t scrollbar_frame; + grub_gfxmenu_box_t scrollbar_thumb; + int scrollbar_thumb_overlay; + int scrollbar_width; + enum scrollbar_slice_mode scrollbar_slice; + int scrollbar_left_pad; + int scrollbar_right_pad; + int scrollbar_top_pad; + int scrollbar_bottom_pad; + + int first_shown_index; + + int need_to_recreate_boxes; + char *theme_dir; + char *menu_box_pattern; + char *item_box_pattern; + int selected_item_box_pattern_inherit; + char *selected_item_box_pattern; + grub_gfxmenu_box_t menu_box; + grub_gfxmenu_box_t selected_item_box; + grub_gfxmenu_box_t item_box; + + grub_gfxmenu_icon_manager_t icon_manager; + + grub_gfxmenu_view_t view; +}; + +typedef struct grub_gui_list_impl *list_impl_t; + +static void +list_destroy (void *vself) +{ + list_impl_t self = vself; + + grub_free (self->theme_dir); + grub_free (self->menu_box_pattern); + grub_free (self->item_box_pattern); + grub_free (self->selected_item_box_pattern); + if (self->menu_box) + self->menu_box->destroy (self->menu_box); + if (self->item_box) + self->item_box->destroy (self->item_box); + if (self->selected_item_box) + self->selected_item_box->destroy (self->selected_item_box); + if (self->icon_manager) + grub_gfxmenu_icon_manager_destroy (self->icon_manager); + if (self->scrollbar_thumb) + self->scrollbar_thumb->destroy (self->scrollbar_thumb); + if (self->scrollbar_frame) + self->scrollbar_frame->destroy (self->scrollbar_frame); + grub_free (self->scrollbar_thumb_pattern); + grub_free (self->scrollbar_frame_pattern); + grub_free (self); +} + +static int +get_num_shown_items (list_impl_t self) +{ + int boxpad = self->item_padding; + int item_vspace = self->item_spacing; + int item_height = self->item_height; + + grub_gfxmenu_box_t box = self->menu_box; + int box_top_pad = box->get_top_pad (box); + int box_bottom_pad = box->get_bottom_pad (box); + grub_gfxmenu_box_t itembox = self->item_box; + grub_gfxmenu_box_t selbox = self->selected_item_box; + int item_top_pad = itembox->get_top_pad (itembox); + int item_bottom_pad = itembox->get_bottom_pad (itembox); + int sel_top_pad = selbox->get_top_pad (selbox); + int sel_bottom_pad = selbox->get_bottom_pad (selbox); + int max_top_pad = grub_max (item_top_pad, sel_top_pad); + int max_bottom_pad = grub_max (item_bottom_pad, sel_bottom_pad); + + if (item_height + item_vspace <= 0) + return 1; + + return (self->bounds.height + item_vspace - 2 * boxpad + - max_top_pad - max_bottom_pad + - box_top_pad - box_bottom_pad) / (item_height + item_vspace); +} + +static int +check_boxes (list_impl_t self) +{ + if (self->need_to_recreate_boxes) + { + grub_gui_recreate_box (&self->menu_box, + self->menu_box_pattern, + self->theme_dir); + + grub_gui_recreate_box (&self->item_box, + self->item_box_pattern, + self->theme_dir); + + grub_gui_recreate_box (&self->selected_item_box, + self->selected_item_box_pattern, + self->theme_dir); + + self->need_to_recreate_boxes = 0; + } + + return (self->menu_box != 0 && self->selected_item_box != 0 + && self->item_box != 0); +} + +static int +check_scrollbar (list_impl_t self) +{ + if (self->need_to_recreate_scrollbar) + { + grub_gui_recreate_box (&self->scrollbar_frame, + self->scrollbar_frame_pattern, + self->theme_dir); + + grub_gui_recreate_box (&self->scrollbar_thumb, + self->scrollbar_thumb_pattern, + self->theme_dir); + + self->need_to_recreate_scrollbar = 0; + } + + if (self->scrollbar_frame == 0 || self->scrollbar_thumb == 0) + return 0; + + /* Sanity checks. */ + grub_gfxmenu_box_t frame = self->scrollbar_frame; + grub_gfxmenu_box_t thumb = self->scrollbar_thumb; + grub_gfxmenu_box_t menu = self->menu_box; + int min_width = frame->get_left_pad (frame) + + frame->get_right_pad (frame); + int min_height = frame->get_top_pad (frame) + + frame->get_bottom_pad (frame) + + self->scrollbar_top_pad + self->scrollbar_bottom_pad + + menu->get_top_pad (menu) + + menu->get_bottom_pad (menu); + if (!self->scrollbar_thumb_overlay) + { + min_width += thumb->get_left_pad (thumb) + + thumb->get_right_pad (thumb); + min_height += thumb->get_top_pad (thumb) + + thumb->get_bottom_pad (thumb); + } + if (min_width <= self->scrollbar_width + && min_height <= (int) self->bounds.height) + return 1; + + /* Unprintable dimenstions. */ + self->draw_scrollbar = 0; + return 0; +} + +static const char * +list_get_id (void *vself) +{ + list_impl_t self = vself; + return self->id; +} + +static int +list_is_instance (void *vself __attribute__((unused)), const char *type) +{ + return (grub_strcmp (type, "component") == 0 + || grub_strcmp (type, "list") == 0); +} + +static struct grub_video_bitmap * +get_item_icon (list_impl_t self, int item_index) +{ + grub_menu_entry_t entry; + entry = grub_menu_get_entry (self->view->menu, item_index); + if (! entry) + return 0; + + return grub_gfxmenu_icon_manager_get_icon (self->icon_manager, entry); +} + +static void +make_selected_item_visible (list_impl_t self) +{ + int selected_index = self->view->selected; + if (selected_index < 0) + return; /* No item is selected. */ + int num_shown_items = get_num_shown_items (self); + int last_shown_index = self->first_shown_index + (num_shown_items - 1); + if (selected_index < self->first_shown_index) + self->first_shown_index = selected_index; + else if (selected_index > last_shown_index) + self->first_shown_index = selected_index - (num_shown_items - 1); +} + +/* Draw a scrollbar on the menu. */ +static void +draw_scrollbar (list_impl_t self, + int value, int extent, int min, int max, + int scrollbar_width, int scrollbar_height) +{ + unsigned thumby, thumbheight; + + grub_gfxmenu_box_t frame = self->scrollbar_frame; + grub_gfxmenu_box_t thumb = self->scrollbar_thumb; + int frame_vertical_pad = (frame->get_top_pad (frame) + + frame->get_bottom_pad (frame)); + int frame_horizontal_pad = (frame->get_left_pad (frame) + + frame->get_right_pad (frame)); + unsigned thumb_vertical_pad = (thumb->get_top_pad (thumb) + + thumb->get_bottom_pad (thumb)); + int thumb_horizontal_pad = (thumb->get_left_pad (thumb) + + thumb->get_right_pad (thumb)); + int tracktop = frame->get_top_pad (frame); + unsigned tracklen; + if (scrollbar_height <= frame_vertical_pad) + tracklen = 0; + else + tracklen = scrollbar_height - frame_vertical_pad; + frame->set_content_size (frame, + scrollbar_width - frame_horizontal_pad, + tracklen); + if (self->scrollbar_thumb_overlay) + { + tracklen += thumb_vertical_pad; + tracktop -= thumb->get_top_pad (thumb); + } + if (value <= min || max <= min) + thumby = 0; + else + thumby = ((unsigned) tracklen * (value - min)) + / ((unsigned) (max - min)); + if (max <= min) + thumbheight = 1; + else + thumbheight = ((unsigned) (tracklen * extent) + / ((unsigned) (max - min))) + 1; + /* Rare occasion: too many entries or too low height. */ + if (thumbheight < thumb_vertical_pad) + { + thumbheight = thumb_vertical_pad; + if (value <= min || max <= extent + || tracklen <= thumb_vertical_pad) + thumby = 0; + else + thumby = ((unsigned) ((tracklen - thumb_vertical_pad) * (value - min)) + / ((unsigned)(max - extent))); + } + thumby += tracktop; + int thumbx = frame->get_left_pad (frame); + int thumbwidth = scrollbar_width - frame_horizontal_pad; + if (!self->scrollbar_thumb_overlay) + thumbwidth -= thumb_horizontal_pad; + else + thumbx -= thumb->get_left_pad (thumb); + thumb->set_content_size (thumb, thumbwidth, + thumbheight - thumb_vertical_pad); + frame->draw (frame, 0, 0); + thumb->draw (thumb, thumbx, thumby); +} + +/* Draw the list of items. */ +static void +draw_menu (list_impl_t self, int num_shown_items) +{ + if (! self->menu_box || ! self->selected_item_box || ! self->item_box) + return; + + int boxpad = self->item_padding; + int icon_text_space = self->item_icon_space; + int item_vspace = self->item_spacing; + + int ascent = grub_font_get_ascent (self->item_font); + int descent = grub_font_get_descent (self->item_font); + int selected_ascent = grub_font_get_ascent (self->selected_item_font); + int selected_descent = grub_font_get_descent (self->selected_item_font); + int text_box_height = self->item_height; + + make_selected_item_visible (self); + + grub_gfxmenu_box_t itembox = self->item_box; + grub_gfxmenu_box_t selbox = self->selected_item_box; + int item_leftpad = itembox->get_left_pad (itembox); + int item_rightpad = itembox->get_right_pad (itembox); + int item_border_width = item_leftpad + item_rightpad; + int item_toppad = itembox->get_top_pad (itembox); + int sel_leftpad = selbox->get_left_pad (selbox); + int sel_rightpad = selbox->get_right_pad (selbox); + int sel_border_width = sel_leftpad + sel_rightpad; + int sel_toppad = selbox->get_top_pad (selbox); + + int max_leftpad = grub_max (item_leftpad, sel_leftpad); + int max_toppad = grub_max (item_toppad, sel_toppad); + int item_top = 0; + int menu_index; + int visible_index; + struct grub_video_rect oviewport; + + grub_video_get_viewport (&oviewport.x, &oviewport.y, + &oviewport.width, &oviewport.height); + grub_video_set_viewport (oviewport.x + boxpad, + oviewport.y + boxpad, + oviewport.width - 2 * boxpad, + oviewport.height - 2 * boxpad); + + int cwidth = oviewport.width - 2 * boxpad; + + itembox->set_content_size (itembox, cwidth - item_border_width, + text_box_height); + selbox->set_content_size (selbox, cwidth - sel_border_width, + text_box_height); + + int text_left_offset = self->icon_width + icon_text_space; + int item_text_top_offset = (text_box_height - (ascent + descent)) / 2 + ascent; + int sel_text_top_offset = (text_box_height - (selected_ascent + + selected_descent)) / 2 + + selected_ascent; + + grub_video_rect_t svpsave, sviewport; + sviewport.x = max_leftpad + text_left_offset; + int text_viewport_width = cwidth - sviewport.x; + sviewport.height = text_box_height; + + grub_video_color_t item_color; + grub_video_color_t sel_color; + item_color = grub_video_map_rgba_color (self->item_color); + sel_color = grub_video_map_rgba_color (self->selected_item_color); + + int item_box_top_offset = max_toppad - item_toppad; + int sel_box_top_offset = max_toppad - sel_toppad; + int item_viewport_width = text_viewport_width - item_rightpad; + int sel_viewport_width = text_viewport_width - sel_rightpad; + int tmp_icon_top_offset = (text_box_height - self->icon_height) / 2; + int item_icon_top_offset = item_toppad + tmp_icon_top_offset; + int sel_icon_top_offset = sel_toppad + tmp_icon_top_offset; + + for (visible_index = 0, menu_index = self->first_shown_index; + visible_index < num_shown_items && menu_index < self->view->menu->size; + visible_index++, menu_index++) + { + int is_selected = (menu_index == self->view->selected); + struct grub_video_bitmap *icon; + grub_font_t font; + grub_video_color_t color; + int text_top_offset; + int top_pad; + int icon_top_offset; + int viewport_width; + + if (is_selected) + { + selbox->draw (selbox, 0, item_top + sel_box_top_offset); + font = self->selected_item_font; + color = sel_color; + text_top_offset = sel_text_top_offset; + top_pad = sel_toppad; + icon_top_offset = sel_icon_top_offset; + viewport_width = sel_viewport_width; + } + else + { + itembox->draw (itembox, 0, item_top + item_box_top_offset); + font = self->item_font; + color = item_color; + text_top_offset = item_text_top_offset; + top_pad = item_toppad; + icon_top_offset = item_icon_top_offset; + viewport_width = item_viewport_width; + } + + icon = get_item_icon (self, menu_index); + if (icon != 0) + grub_video_blit_bitmap (icon, GRUB_VIDEO_BLIT_BLEND, + max_leftpad, + item_top + icon_top_offset, + 0, 0, self->icon_width, self->icon_height); + + const char *item_title = + grub_menu_get_entry (self->view->menu, menu_index)->title; + + sviewport.y = item_top + top_pad; + sviewport.width = viewport_width; + grub_gui_set_viewport (&sviewport, &svpsave); + grub_font_draw_string (item_title, + font, + color, + 0, + text_top_offset); + grub_gui_restore_viewport (&svpsave); + + item_top += text_box_height + item_vspace; + } + grub_video_set_viewport (oviewport.x, + oviewport.y, + oviewport.width, + oviewport.height); +} + +static void +list_paint (void *vself, const grub_video_rect_t *region) +{ + list_impl_t self = vself; + grub_video_rect_t vpsave; + + if (! self->visible) + return; + if (!grub_video_have_common_points (region, &self->bounds)) + return; + + check_boxes (self); + + if (! self->menu_box || ! self->selected_item_box || ! self->item_box) + return; + + grub_gui_set_viewport (&self->bounds, &vpsave); + { + grub_gfxmenu_box_t box = self->menu_box; + int box_left_pad = box->get_left_pad (box); + int box_top_pad = box->get_top_pad (box); + int box_right_pad = box->get_right_pad (box); + int box_bottom_pad = box->get_bottom_pad (box); + grub_video_rect_t vpsave2, content_rect; + int num_shown_items = get_num_shown_items (self); + int drawing_scrollbar = (self->draw_scrollbar + && (num_shown_items < self->view->menu->size) + && check_scrollbar (self)); + int scrollbar_width = self->scrollbar_width; + + content_rect.x = box_left_pad; + content_rect.y = box_top_pad; + content_rect.width = self->bounds.width - box_left_pad - box_right_pad; + content_rect.height = self->bounds.height - box_top_pad - box_bottom_pad; + + box->set_content_size (box, content_rect.width, content_rect.height); + + box->draw (box, 0, 0); + + switch (self->scrollbar_slice) + { + case SCROLLBAR_SLICE_WEST: + content_rect.x += self->scrollbar_right_pad; + content_rect.width -= self->scrollbar_right_pad; + break; + case SCROLLBAR_SLICE_CENTER: + if (drawing_scrollbar) + content_rect.width -= scrollbar_width + self->scrollbar_left_pad + + self->scrollbar_right_pad; + break; + case SCROLLBAR_SLICE_EAST: + content_rect.width -= self->scrollbar_left_pad; + break; + } + + grub_gui_set_viewport (&content_rect, &vpsave2); + draw_menu (self, num_shown_items); + grub_gui_restore_viewport (&vpsave2); + + if (drawing_scrollbar) + { + content_rect.y += self->scrollbar_top_pad; + content_rect.height -= self->scrollbar_top_pad + + self->scrollbar_bottom_pad; + content_rect.width = scrollbar_width; + switch (self->scrollbar_slice) + { + case SCROLLBAR_SLICE_WEST: + if (box_left_pad > scrollbar_width) + { + content_rect.x = box_left_pad - scrollbar_width; + content_rect.width = scrollbar_width; + } + else + { + content_rect.x = 0; + content_rect.width = box_left_pad; + } + break; + case SCROLLBAR_SLICE_CENTER: + content_rect.x = self->bounds.width - box_right_pad + - scrollbar_width - self->scrollbar_right_pad; + content_rect.width = scrollbar_width; + break; + case SCROLLBAR_SLICE_EAST: + content_rect.x = self->bounds.width - box_right_pad; + content_rect.width = box_right_pad; + break; + } + + grub_gui_set_viewport (&content_rect, &vpsave2); + draw_scrollbar (self, + self->first_shown_index, num_shown_items, + 0, self->view->menu->size, + scrollbar_width, + content_rect.height); + grub_gui_restore_viewport (&vpsave2); + } + } + + grub_gui_restore_viewport (&vpsave); +} + +static void +list_set_parent (void *vself, grub_gui_container_t parent) +{ + list_impl_t self = vself; + self->parent = parent; +} + +static grub_gui_container_t +list_get_parent (void *vself) +{ + list_impl_t self = vself; + return self->parent; +} + +static void +list_set_bounds (void *vself, const grub_video_rect_t *bounds) +{ + list_impl_t self = vself; + self->bounds = *bounds; +} + +static void +list_get_bounds (void *vself, grub_video_rect_t *bounds) +{ + list_impl_t self = vself; + *bounds = self->bounds; +} + +static void +list_get_minimal_size (void *vself, unsigned *width, unsigned *height) +{ + list_impl_t self = vself; + + if (check_boxes (self)) + { + int boxpad = self->item_padding; + int item_vspace = self->item_spacing; + int item_height = self->item_height; + int num_items = 3; + + grub_gfxmenu_box_t box = self->menu_box; + int box_left_pad = box->get_left_pad (box); + int box_top_pad = box->get_top_pad (box); + int box_right_pad = box->get_right_pad (box); + int box_bottom_pad = box->get_bottom_pad (box); + unsigned width_s; + + grub_gfxmenu_box_t selbox = self->selected_item_box; + int sel_top_pad = selbox->get_top_pad (selbox); + int sel_bottom_pad = selbox->get_bottom_pad (selbox); + int sel_left_pad = selbox->get_left_pad (selbox); + int sel_right_pad = selbox->get_right_pad (selbox); + + grub_gfxmenu_box_t itembox = self->item_box; + int item_top_pad = itembox->get_top_pad (itembox); + int item_bottom_pad = itembox->get_bottom_pad (itembox); + int item_left_pad = itembox->get_left_pad (itembox); + int item_right_pad = itembox->get_right_pad (itembox); + + int max_left_pad = grub_max (item_left_pad, sel_left_pad); + int max_right_pad = grub_max (item_right_pad, sel_right_pad); + int max_top_pad = grub_max (item_top_pad, sel_top_pad); + int max_bottom_pad = grub_max (item_bottom_pad, sel_bottom_pad); + + *width = grub_font_get_string_width (self->item_font, "Typical OS"); + width_s = grub_font_get_string_width (self->selected_item_font, + "Typical OS"); + if (*width < width_s) + *width = width_s; + + *width += 2 * boxpad + box_left_pad + box_right_pad + + max_left_pad + max_right_pad + + self->item_icon_space + self->icon_width; + + switch (self->scrollbar_slice) + { + case SCROLLBAR_SLICE_WEST: + *width += self->scrollbar_right_pad; + break; + case SCROLLBAR_SLICE_CENTER: + *width += self->scrollbar_width + self->scrollbar_left_pad + + self->scrollbar_right_pad; + break; + case SCROLLBAR_SLICE_EAST: + *width += self->scrollbar_left_pad; + break; + } + + /* Set the menu box height to fit the items. */ + *height = (item_height * num_items + + item_vspace * (num_items - 1) + + 2 * boxpad + + box_top_pad + box_bottom_pad + + max_top_pad + max_bottom_pad); + } + else + { + *width = 0; + *height = 0; + } +} + +static grub_err_t +list_set_property (void *vself, const char *name, const char *value) +{ + list_impl_t self = vself; + if (grub_strcmp (name, "item_font") == 0) + { + self->item_font = grub_font_get (value); + if (self->selected_item_font_inherit) + self->selected_item_font = self->item_font; + } + else if (grub_strcmp (name, "selected_item_font") == 0) + { + if (! value || grub_strcmp (value, "inherit") == 0) + { + self->selected_item_font = self->item_font; + self->selected_item_font_inherit = 1; + } + else + { + self->selected_item_font = grub_font_get (value); + self->selected_item_font_inherit = 0; + } + } + else if (grub_strcmp (name, "item_color") == 0) + { + grub_video_rgba_color_t color; + if (grub_video_parse_color (value, &color) == GRUB_ERR_NONE) + { + self->item_color = color; + if (self->selected_item_color_inherit) + self->selected_item_color = self->item_color; + } + } + else if (grub_strcmp (name, "selected_item_color") == 0) + { + if (! value || grub_strcmp (value, "inherit") == 0) + { + self->selected_item_color = self->item_color; + self->selected_item_color_inherit = 1; + } + else + { + grub_video_rgba_color_t color; + if (grub_video_parse_color (value, &color) + == GRUB_ERR_NONE) + { + self->selected_item_color = color; + self->selected_item_color_inherit = 0; + } + } + } + else if (grub_strcmp (name, "icon_width") == 0) + { + self->icon_width = grub_strtol (value, 0, 10); + grub_gfxmenu_icon_manager_set_icon_size (self->icon_manager, + self->icon_width, + self->icon_height); + } + else if (grub_strcmp (name, "icon_height") == 0) + { + self->icon_height = grub_strtol (value, 0, 10); + grub_gfxmenu_icon_manager_set_icon_size (self->icon_manager, + self->icon_width, + self->icon_height); + } + else if (grub_strcmp (name, "item_height") == 0) + { + self->item_height = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "item_padding") == 0) + { + self->item_padding = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "item_icon_space") == 0) + { + self->item_icon_space = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "item_spacing") == 0) + { + self->item_spacing = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "visible") == 0) + { + self->visible = grub_strcmp (value, "false") != 0; + } + else if (grub_strcmp (name, "menu_pixmap_style") == 0) + { + self->need_to_recreate_boxes = 1; + grub_free (self->menu_box_pattern); + self->menu_box_pattern = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "item_pixmap_style") == 0) + { + self->need_to_recreate_boxes = 1; + grub_free (self->item_box_pattern); + self->item_box_pattern = value ? grub_strdup (value) : 0; + if (self->selected_item_box_pattern_inherit) + { + grub_free (self->selected_item_box_pattern); + self->selected_item_box_pattern = value ? grub_strdup (value) : 0; + } + } + else if (grub_strcmp (name, "selected_item_pixmap_style") == 0) + { + if (!value || grub_strcmp (value, "inherit") == 0) + { + grub_free (self->selected_item_box_pattern); + char *tmp = self->item_box_pattern; + self->selected_item_box_pattern = tmp ? grub_strdup (tmp) : 0; + self->selected_item_box_pattern_inherit = 1; + } + else + { + self->need_to_recreate_boxes = 1; + grub_free (self->selected_item_box_pattern); + self->selected_item_box_pattern = grub_strdup (value); + self->selected_item_box_pattern_inherit = 0; + } + } + else if (grub_strcmp (name, "scrollbar_frame") == 0) + { + self->need_to_recreate_scrollbar = 1; + grub_free (self->scrollbar_frame_pattern); + self->scrollbar_frame_pattern = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "scrollbar_thumb") == 0) + { + self->need_to_recreate_scrollbar = 1; + grub_free (self->scrollbar_thumb_pattern); + self->scrollbar_thumb_pattern = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "scrollbar_thumb_overlay") == 0) + { + self->scrollbar_thumb_overlay = grub_strcmp (value, "true") == 0; + } + else if (grub_strcmp (name, "scrollbar_width") == 0) + { + self->scrollbar_width = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "scrollbar_slice") == 0) + { + if (grub_strcmp (value, "west") == 0) + self->scrollbar_slice = SCROLLBAR_SLICE_WEST; + else if (grub_strcmp (value, "center") == 0) + self->scrollbar_slice = SCROLLBAR_SLICE_CENTER; + else if (grub_strcmp (value, "east") == 0) + self->scrollbar_slice = SCROLLBAR_SLICE_EAST; + } + else if (grub_strcmp (name, "scrollbar_left_pad") == 0) + { + self->scrollbar_left_pad = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "scrollbar_right_pad") == 0) + { + self->scrollbar_right_pad = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "scrollbar_top_pad") == 0) + { + self->scrollbar_top_pad = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "scrollbar_bottom_pad") == 0) + { + self->scrollbar_bottom_pad = grub_strtol (value, 0, 10); + } + else if (grub_strcmp (name, "scrollbar") == 0) + { + self->draw_scrollbar = grub_strcmp (value, "false") != 0; + } + else if (grub_strcmp (name, "theme_dir") == 0) + { + self->need_to_recreate_boxes = 1; + grub_free (self->theme_dir); + self->theme_dir = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "id") == 0) + { + grub_free (self->id); + if (value) + self->id = grub_strdup (value); + else + self->id = 0; + } + return grub_errno; +} + +/* Set necessary information that the gfxmenu view provides. */ +static void +list_set_view_info (void *vself, + grub_gfxmenu_view_t view) +{ + list_impl_t self = vself; + grub_gfxmenu_icon_manager_set_theme_path (self->icon_manager, + view->theme_path); + self->view = view; +} + +/* Refresh list variables */ +static void +list_refresh_info (void *vself, + grub_gfxmenu_view_t view) +{ + list_impl_t self = vself; + if (view->nested) + self->first_shown_index = 0; +} + +static struct grub_gui_component_ops list_comp_ops = + { + .destroy = list_destroy, + .get_id = list_get_id, + .is_instance = list_is_instance, + .paint = list_paint, + .set_parent = list_set_parent, + .get_parent = list_get_parent, + .set_bounds = list_set_bounds, + .get_bounds = list_get_bounds, + .get_minimal_size = list_get_minimal_size, + .set_property = list_set_property + }; + +static struct grub_gui_list_ops list_ops = +{ + .set_view_info = list_set_view_info, + .refresh_list = list_refresh_info +}; + +grub_gui_component_t +grub_gui_list_new (void) +{ + list_impl_t self; + grub_font_t default_font; + grub_video_rgba_color_t default_fg_color; + + self = grub_zalloc (sizeof (*self)); + if (! self) + return 0; + + self->list.ops = &list_ops; + self->list.component.ops = &list_comp_ops; + + self->visible = 1; + + default_font = grub_font_get ("Unknown Regular 16"); + default_fg_color = grub_video_rgba_color_rgb (0, 0, 0); + + self->icon_width = 32; + self->icon_height = 32; + self->item_height = 42; + self->item_padding = 14; + self->item_icon_space = 4; + self->item_spacing = 16; + self->item_font = default_font; + self->selected_item_font_inherit = 1; /* Default to using the item_font. */ + self->selected_item_font = default_font; + self->item_color = default_fg_color; + self->selected_item_color_inherit = 1; /* Default to using the item_color. */ + self->selected_item_color = default_fg_color; + + self->draw_scrollbar = 1; + self->need_to_recreate_scrollbar = 1; + self->scrollbar_frame = 0; + self->scrollbar_thumb = 0; + self->scrollbar_frame_pattern = 0; + self->scrollbar_thumb_pattern = 0; + self->scrollbar_thumb_overlay = 0; + self->scrollbar_width = 16; + self->scrollbar_slice = SCROLLBAR_SLICE_EAST; + self->scrollbar_left_pad = 2; + self->scrollbar_right_pad = 0; + self->scrollbar_top_pad = 0; + self->scrollbar_bottom_pad = 0; + + self->first_shown_index = 0; + + self->need_to_recreate_boxes = 0; + self->theme_dir = 0; + self->menu_box_pattern = 0; + self->item_box_pattern = 0; + self->selected_item_box_pattern_inherit = 1;/*Default to using the item_box.*/ + self->selected_item_box_pattern = 0; + self->menu_box = grub_gfxmenu_create_box (0, 0); + self->item_box = grub_gfxmenu_create_box (0, 0); + self->selected_item_box = grub_gfxmenu_create_box (0, 0); + + self->icon_manager = grub_gfxmenu_icon_manager_new (); + if (! self->icon_manager) + { + self->list.component.ops->destroy (self); + return 0; + } + grub_gfxmenu_icon_manager_set_icon_size (self->icon_manager, + self->icon_width, + self->icon_height); + return (grub_gui_component_t) self; +} diff --git a/grub-core/gfxmenu/gui_progress_bar.c b/grub-core/gfxmenu/gui_progress_bar.c new file mode 100644 index 0000000..ace85a1 --- /dev/null +++ b/grub-core/gfxmenu/gui_progress_bar.c @@ -0,0 +1,457 @@ +/* gui_progress_bar.c - GUI progress bar component. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/gui.h> +#include <grub/font.h> +#include <grub/gui_string_util.h> +#include <grub/gfxmenu_view.h> +#include <grub/gfxwidgets.h> +#include <grub/i18n.h> +#include <grub/color.h> + +struct grub_gui_progress_bar +{ + struct grub_gui_progress progress; + + grub_gui_container_t parent; + grub_video_rect_t bounds; + char *id; + int visible; + int start; + int end; + int value; + char *template; + grub_font_t font; + grub_video_rgba_color_t text_color; + grub_video_rgba_color_t border_color; + grub_video_rgba_color_t bg_color; + grub_video_rgba_color_t fg_color; + + char *theme_dir; + int need_to_recreate_pixmaps; + int pixmapbar_available; + char *bar_pattern; + char *highlight_pattern; + grub_gfxmenu_box_t bar_box; + grub_gfxmenu_box_t highlight_box; + int highlight_overlay; +}; + +typedef struct grub_gui_progress_bar *grub_gui_progress_bar_t; + +static void +progress_bar_destroy (void *vself) +{ + grub_gui_progress_bar_t self = vself; + grub_free (self->theme_dir); + grub_free (self->template); + grub_free (self->id); + grub_gfxmenu_timeout_unregister ((grub_gui_component_t) self); + grub_free (self); +} + +static const char * +progress_bar_get_id (void *vself) +{ + grub_gui_progress_bar_t self = vself; + return self->id; +} + +static int +progress_bar_is_instance (void *vself __attribute__((unused)), const char *type) +{ + return grub_strcmp (type, "component") == 0; +} + +static int +check_pixmaps (grub_gui_progress_bar_t self) +{ + if (!self->pixmapbar_available) + return 0; + if (self->need_to_recreate_pixmaps) + { + grub_gui_recreate_box (&self->bar_box, + self->bar_pattern, + self->theme_dir); + + grub_gui_recreate_box (&self->highlight_box, + self->highlight_pattern, + self->theme_dir); + + self->need_to_recreate_pixmaps = 0; + } + + return (self->bar_box != 0 && self->highlight_box != 0); +} + +static void +draw_filled_rect_bar (grub_gui_progress_bar_t self) +{ + /* Set the progress bar's frame. */ + grub_video_rect_t f; + f.x = 1; + f.y = 1; + f.width = self->bounds.width - 2; + f.height = self->bounds.height - 2; + + /* Border. */ + grub_video_fill_rect (grub_video_map_rgba_color (self->border_color), + f.x - 1, f.y - 1, + f.width + 2, f.height + 2); + + /* Bar background. */ + unsigned barwidth; + + if (self->end <= self->start + || self->value <= self->start) + barwidth = 0; + else + barwidth = (f.width + * (self->value - self->start) + / (self->end - self->start)); + grub_video_fill_rect (grub_video_map_rgba_color (self->bg_color), + f.x + barwidth, f.y, + f.width - barwidth, f.height); + + /* Bar foreground. */ + grub_video_fill_rect (grub_video_map_rgba_color (self->fg_color), + f.x, f.y, + barwidth, f.height); +} + +static void +draw_pixmap_bar (grub_gui_progress_bar_t self) +{ + grub_gfxmenu_box_t bar = self->bar_box; + grub_gfxmenu_box_t hl = self->highlight_box; + int w = self->bounds.width; + int h = self->bounds.height; + int bar_l_pad = bar->get_left_pad (bar); + int bar_r_pad = bar->get_right_pad (bar); + int bar_t_pad = bar->get_top_pad (bar); + int bar_b_pad = bar->get_bottom_pad (bar); + int bar_h_pad = bar_l_pad + bar_r_pad; + int bar_v_pad = bar_t_pad + bar_b_pad; + int hl_l_pad = hl->get_left_pad (hl); + int hl_r_pad = hl->get_right_pad (hl); + int hl_t_pad = hl->get_top_pad (hl); + int hl_b_pad = hl->get_bottom_pad (hl); + int hl_h_pad = hl_l_pad + hl_r_pad; + int hl_v_pad = hl_t_pad + hl_b_pad; + int tracklen = w - bar_h_pad; + int trackheight = h - bar_v_pad; + int barwidth; + int hlheight = trackheight; + int hlx = bar_l_pad; + int hly = bar_t_pad; + + bar->set_content_size (bar, tracklen, trackheight); + bar->draw (bar, 0, 0); + + if (self->highlight_overlay) + { + tracklen += hl_h_pad; + hlx -= hl_l_pad; + hly -= hl_t_pad; + } + else + hlheight -= hl_v_pad; + + if (self->value <= self->start + || self->end <= self->start) + barwidth = 0; + else + barwidth = ((unsigned) (tracklen * (self->value - self->start)) + / ((unsigned) (self->end - self->start))); + + if (barwidth >= hl_h_pad) + { + hl->set_content_size (hl, barwidth - hl_h_pad, hlheight); + hl->draw (hl, hlx, hly); + } +} + +#pragma GCC diagnostic ignored "-Wformat-nonliteral" + +static void +draw_text (grub_gui_progress_bar_t self) +{ + if (self->template) + { + grub_font_t font = self->font; + grub_video_color_t text_color = + grub_video_map_rgba_color (self->text_color); + int width = self->bounds.width; + int height = self->bounds.height; + char *text; + text = grub_xasprintf (self->template, + self->value > 0 ? self->value : -self->value); + if (!text) + { + grub_print_error (); + grub_errno = GRUB_ERR_NONE; + return; + } + /* Center the text. */ + int text_width = grub_font_get_string_width (font, text); + int x = (width - text_width) / 2; + int y = ((height - grub_font_get_descent (font)) / 2 + + grub_font_get_ascent (font) / 2); + grub_font_draw_string (text, font, text_color, x, y); + grub_free (text); + } +} + +#pragma GCC diagnostic error "-Wformat-nonliteral" + +static void +progress_bar_paint (void *vself, const grub_video_rect_t *region) +{ + grub_gui_progress_bar_t self = vself; + grub_video_rect_t vpsave; + + if (! self->visible) + return; + if (!grub_video_have_common_points (region, &self->bounds)) + return; + + if (self->end == self->start) + return; + + grub_gui_set_viewport (&self->bounds, &vpsave); + + if (check_pixmaps (self)) + draw_pixmap_bar (self); + else + draw_filled_rect_bar (self); + + draw_text (self); + + grub_gui_restore_viewport (&vpsave); +} + +static void +progress_bar_set_parent (void *vself, grub_gui_container_t parent) +{ + grub_gui_progress_bar_t self = vself; + self->parent = parent; +} + +static grub_gui_container_t +progress_bar_get_parent (void *vself) +{ + grub_gui_progress_bar_t self = vself; + return self->parent; +} + +static void +progress_bar_set_bounds (void *vself, const grub_video_rect_t *bounds) +{ + grub_gui_progress_bar_t self = vself; + self->bounds = *bounds; +} + +static void +progress_bar_get_bounds (void *vself, grub_video_rect_t *bounds) +{ + grub_gui_progress_bar_t self = vself; + *bounds = self->bounds; +} + +static void +progress_bar_get_minimal_size (void *vself, + unsigned *width, unsigned *height) +{ + unsigned min_width = 0; + unsigned min_height = 0; + grub_gui_progress_bar_t self = vself; + + if (self->template) + { + min_width = grub_font_get_string_width (self->font, self->template); + min_width += grub_font_get_string_width (self->font, "XXXXXXXXXX"); + min_height = grub_font_get_descent (self->font) + + grub_font_get_ascent (self->font); + } + if (check_pixmaps (self)) + { + grub_gfxmenu_box_t bar = self->bar_box; + grub_gfxmenu_box_t hl = self->highlight_box; + min_width += bar->get_left_pad (bar) + bar->get_right_pad (bar); + min_height += bar->get_top_pad (bar) + bar->get_bottom_pad (bar); + if (!self->highlight_overlay) + { + min_width += hl->get_left_pad (hl) + hl->get_right_pad (hl); + min_height += hl->get_top_pad (hl) + hl->get_bottom_pad (hl); + } + } + else + { + min_height += 2; + min_width += 2; + } + *width = 200; + if (*width < min_width) + *width = min_width; + *height = 28; + if (*height < min_height) + *height = min_height; +} + +static void +progress_bar_set_state (void *vself, int visible, int start, + int current, int end) +{ + grub_gui_progress_bar_t self = vself; + self->visible = visible; + self->start = start; + self->value = current; + self->end = end; +} + +static grub_err_t +progress_bar_set_property (void *vself, const char *name, const char *value) +{ + grub_gui_progress_bar_t self = vself; + if (grub_strcmp (name, "text") == 0) + { + grub_free (self->template); + if (grub_strcmp (value, "@TIMEOUT_NOTIFICATION_LONG@") == 0) + value + = _("The highlighted entry will be executed automatically in %ds."); + else if (grub_strcmp (value, "@TIMEOUT_NOTIFICATION_MIDDLE@") == 0) + /* TRANSLATORS: 's' stands for seconds. + It's a standalone timeout notification. + Please use the short form in your language. */ + value = _("%ds remaining."); + else if (grub_strcmp (value, "@TIMEOUT_NOTIFICATION_SHORT@") == 0) + /* TRANSLATORS: 's' stands for seconds. + It's a standalone timeout notification. + Please use the shortest form available in you language. */ + value = _("%ds"); + + if (grub_printf_fmt_check(value, "%d") != GRUB_ERR_NONE) + value = ""; /* Unsupported format. */ + + self->template = grub_strdup (value); + } + else if (grub_strcmp (name, "font") == 0) + { + self->font = grub_font_get (value); + } + else if (grub_strcmp (name, "text_color") == 0) + { + grub_video_parse_color (value, &self->text_color); + } + else if (grub_strcmp (name, "border_color") == 0) + { + grub_video_parse_color (value, &self->border_color); + } + else if (grub_strcmp (name, "bg_color") == 0) + { + grub_video_parse_color (value, &self->bg_color); + } + else if (grub_strcmp (name, "fg_color") == 0) + { + grub_video_parse_color (value, &self->fg_color); + } + else if (grub_strcmp (name, "bar_style") == 0) + { + self->need_to_recreate_pixmaps = 1; + self->pixmapbar_available = 1; + grub_free (self->bar_pattern); + self->bar_pattern = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "highlight_style") == 0) + { + self->need_to_recreate_pixmaps = 1; + self->pixmapbar_available = 1; + grub_free (self->highlight_pattern); + self->highlight_pattern = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "highlight_overlay") == 0) + { + self->highlight_overlay = grub_strcmp (value, "true") == 0; + } + else if (grub_strcmp (name, "theme_dir") == 0) + { + self->need_to_recreate_pixmaps = 1; + grub_free (self->theme_dir); + self->theme_dir = value ? grub_strdup (value) : 0; + } + else if (grub_strcmp (name, "id") == 0) + { + grub_gfxmenu_timeout_unregister ((grub_gui_component_t) self); + grub_free (self->id); + if (value) + self->id = grub_strdup (value); + else + self->id = 0; + if (self->id && grub_strcmp (self->id, GRUB_GFXMENU_TIMEOUT_COMPONENT_ID) + == 0) + grub_gfxmenu_timeout_register ((grub_gui_component_t) self, + progress_bar_set_state); + } + return grub_errno; +} + +static struct grub_gui_component_ops progress_bar_ops = +{ + .destroy = progress_bar_destroy, + .get_id = progress_bar_get_id, + .is_instance = progress_bar_is_instance, + .paint = progress_bar_paint, + .set_parent = progress_bar_set_parent, + .get_parent = progress_bar_get_parent, + .set_bounds = progress_bar_set_bounds, + .get_bounds = progress_bar_get_bounds, + .get_minimal_size = progress_bar_get_minimal_size, + .set_property = progress_bar_set_property +}; + +static struct grub_gui_progress_ops progress_bar_pb_ops = + { + .set_state = progress_bar_set_state + }; + +grub_gui_component_t +grub_gui_progress_bar_new (void) +{ + grub_gui_progress_bar_t self; + self = grub_zalloc (sizeof (*self)); + if (! self) + return 0; + + self->progress.ops = &progress_bar_pb_ops; + self->progress.component.ops = &progress_bar_ops; + self->visible = 1; + self->font = grub_font_get ("Unknown Regular 16"); + grub_video_rgba_color_t black = { .red = 0, .green = 0, .blue = 0, .alpha = 255 }; + grub_video_rgba_color_t gray = { .red = 128, .green = 128, .blue = 128, .alpha = 255 }; + grub_video_rgba_color_t lightgray = { .red = 200, .green = 200, .blue = 200, .alpha = 255 }; + self->text_color = black; + self->border_color = black; + self->bg_color = gray; + self->fg_color = lightgray; + self->highlight_overlay = 0; + + return (grub_gui_component_t) self; +} diff --git a/grub-core/gfxmenu/gui_string_util.c b/grub-core/gfxmenu/gui_string_util.c new file mode 100644 index 0000000..ba1e1ea --- /dev/null +++ b/grub-core/gfxmenu/gui_string_util.c @@ -0,0 +1,206 @@ +/* gui_string_util.c - String utilities used by the GUI system. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/gui_string_util.h> +#include <grub/types.h> +#include <grub/misc.h> +#include <grub/mm.h> + +/* Create a new NUL-terminated string on the heap as a substring of BUF. + The range of buf included is the half-open interval [START,END). + The index START is inclusive, END is exclusive. */ +char * +grub_new_substring (const char *buf, + grub_size_t start, grub_size_t end) +{ + if (end < start) + return 0; + grub_size_t len = end - start; + char *s = grub_malloc (len + 1); + if (! s) + return 0; + grub_memcpy (s, buf + start, len); + s[len] = '\0'; + return s; +} + +/* Eliminate "." and ".." path elements from PATH. A new heap-allocated + string is returned. */ +static char * +canonicalize_path (const char *path) +{ + int i; + const char *p; + char *newpath = 0; + + /* Count the path components in path. */ + int components = 1; + for (p = path; *p; p++) + if (*p == '/') + components++; + + char **path_array = grub_calloc (components, sizeof (*path_array)); + if (! path_array) + return 0; + + /* Initialize array elements to NULL pointers; in case once of the + allocations fails, the cleanup code can just call grub_free() for all + pointers in the array. */ + for (i = 0; i < components; i++) + path_array[i] = 0; + + /* Parse the path into path_array. */ + p = path; + for (i = 0; i < components && p; i++) + { + /* Find the end of the path element. */ + const char *end = grub_strchr (p, '/'); + if (!end) + end = p + grub_strlen (p); + + /* Copy the element. */ + path_array[i] = grub_new_substring (p, 0, end - p); + if (! path_array[i]) + goto cleanup; + + /* Advance p to point to the start of the next element, or NULL. */ + if (*end) + p = end + 1; + else + p = 0; + } + + /* Eliminate '.' and '..' elements from the path array. */ + int newpath_length = 0; + for (i = components - 1; i >= 0; --i) + { + if (! grub_strcmp (path_array[i], ".")) + { + grub_free (path_array[i]); + path_array[i] = 0; + } + else if (! grub_strcmp (path_array[i], "..") + && i > 0) + { + /* Delete the '..' and the prior path element. */ + grub_free (path_array[i]); + path_array[i] = 0; + --i; + grub_free (path_array[i]); + path_array[i] = 0; + } + else + { + newpath_length += grub_strlen (path_array[i]) + 1; + } + } + + /* Construct a new path string. */ + newpath = grub_malloc (newpath_length + 1); + if (! newpath) + goto cleanup; + + newpath[0] = '\0'; + char *newpath_end = newpath; + int first = 1; + for (i = 0; i < components; i++) + { + char *element = path_array[i]; + if (element) + { + /* For all components but the first, prefix with a slash. */ + if (! first) + newpath_end = grub_stpcpy (newpath_end, "/"); + newpath_end = grub_stpcpy (newpath_end, element); + first = 0; + } + } + +cleanup: + for (i = 0; i < components; i++) + grub_free (path_array[i]); + grub_free (path_array); + + return newpath; +} + +/* Return a new heap-allocated string representing to absolute path + to the file referred to by PATH. If PATH is an absolute path, then + the returned path is a copy of PATH. If PATH is a relative path, then + BASE is with PATH used to construct the absolute path. */ +char * +grub_resolve_relative_path (const char *base, const char *path) +{ + char *abspath; + char *canonpath; + char *p; + grub_size_t l; + + /* If PATH is an absolute path, then just use it as is. */ + if (path[0] == '/' || path[0] == '(') + return canonicalize_path (path); + + abspath = grub_malloc (grub_strlen (base) + grub_strlen (path) + 3); + if (! abspath) + return 0; + + /* Concatenate BASE and PATH. */ + p = grub_stpcpy (abspath, base); + l = grub_strlen (abspath); + if (l == 0 || abspath[l-1] != '/') + { + *p = '/'; + p++; + *p = 0; + } + grub_stpcpy (p, path); + + canonpath = canonicalize_path (abspath); + if (! canonpath) + return abspath; + + grub_free (abspath); + return canonpath; +} + +/* Get the path of the directory where the file at FILE_PATH is located. + FILE_PATH should refer to a file, not a directory. The returned path + includes a trailing slash. + This does not handle GRUB "(hd0,0)" paths properly yet since it only + looks at slashes. */ +char * +grub_get_dirname (const char *file_path) +{ + int i; + int last_slash; + + last_slash = -1; + for (i = grub_strlen (file_path) - 1; i >= 0; --i) + { + if (file_path[i] == '/') + { + last_slash = i; + break; + } + } + if (last_slash == -1) + return grub_strdup ("/"); + + return grub_new_substring (file_path, 0, last_slash + 1); +} diff --git a/grub-core/gfxmenu/gui_util.c b/grub-core/gfxmenu/gui_util.c new file mode 100644 index 0000000..eba7bb3 --- /dev/null +++ b/grub-core/gfxmenu/gui_util.c @@ -0,0 +1,101 @@ +/* gui_util.c - GUI utility functions. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/gui.h> +#include <grub/gui_string_util.h> + + +struct find_by_id_state +{ + const char *match_id; + grub_gui_component_callback match_callback; + void *match_userdata; +}; + +static void +find_by_id_recursively (grub_gui_component_t component, void *userdata) +{ + struct find_by_id_state *state; + const char *id; + + state = (struct find_by_id_state *) userdata; + id = component->ops->get_id (component); + if (id && grub_strcmp (id, state->match_id) == 0) + state->match_callback (component, state->match_userdata); + + if (component->ops->is_instance (component, "container")) + { + grub_gui_container_t container; + container = (grub_gui_container_t) component; + container->ops->iterate_children (container, + find_by_id_recursively, + state); + } +} + +void +grub_gui_find_by_id (grub_gui_component_t root, + const char *id, + grub_gui_component_callback cb, + void *userdata) +{ + struct find_by_id_state state; + state.match_id = id; + state.match_callback = cb; + state.match_userdata = userdata; + find_by_id_recursively (root, &state); +} + + +struct iterate_recursively_state +{ + grub_gui_component_callback callback; + void *userdata; +}; + +static +void iterate_recursively_cb (grub_gui_component_t component, void *userdata) +{ + struct iterate_recursively_state *state; + + state = (struct iterate_recursively_state *) userdata; + state->callback (component, state->userdata); + + if (component->ops->is_instance (component, "container")) + { + grub_gui_container_t container; + container = (grub_gui_container_t) component; + container->ops->iterate_children (container, + iterate_recursively_cb, + state); + } +} + +void +grub_gui_iterate_recursively (grub_gui_component_t root, + grub_gui_component_callback cb, + void *userdata) +{ + struct iterate_recursively_state state; + state.callback = cb; + state.userdata = userdata; + iterate_recursively_cb (root, &state); +} diff --git a/grub-core/gfxmenu/icon_manager.c b/grub-core/gfxmenu/icon_manager.c new file mode 100644 index 0000000..1894682 --- /dev/null +++ b/grub-core/gfxmenu/icon_manager.c @@ -0,0 +1,257 @@ +/* icon_manager.c - gfxmenu icon manager. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/types.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/err.h> +#include <grub/gui_string_util.h> +#include <grub/bitmap.h> +#include <grub/bitmap_scale.h> +#include <grub/menu.h> +#include <grub/icon_manager.h> +#include <grub/env.h> + +/* Currently hard coded to '.png' extension. */ +static const char icon_extension[] = ".png"; + +typedef struct icon_entry +{ + char *class_name; + struct grub_video_bitmap *bitmap; + struct icon_entry *next; +} *icon_entry_t; + +struct grub_gfxmenu_icon_manager +{ + char *theme_path; + int icon_width; + int icon_height; + + /* Icon cache: linked list w/ dummy head node. */ + struct icon_entry cache; +}; + + +/* Create a new icon manager and return a point to it. */ +grub_gfxmenu_icon_manager_t +grub_gfxmenu_icon_manager_new (void) +{ + grub_gfxmenu_icon_manager_t mgr; + mgr = grub_malloc (sizeof (*mgr)); + if (! mgr) + return 0; + + mgr->theme_path = 0; + mgr->icon_width = 0; + mgr->icon_height = 0; + + /* Initialize the dummy head node. */ + mgr->cache.class_name = 0; + mgr->cache.bitmap = 0; + mgr->cache.next = 0; + + return mgr; +} + +/* Destroy the icon manager MGR, freeing all resources used by it. + +Note: Any bitmaps returned by grub_gfxmenu_icon_manager_get_icon() +are destroyed and must not be used by the caller after this function +is called. */ +void +grub_gfxmenu_icon_manager_destroy (grub_gfxmenu_icon_manager_t mgr) +{ + grub_gfxmenu_icon_manager_clear_cache (mgr); + grub_free (mgr->theme_path); + grub_free (mgr); +} + +/* Clear the icon cache. */ +void +grub_gfxmenu_icon_manager_clear_cache (grub_gfxmenu_icon_manager_t mgr) +{ + icon_entry_t cur; + icon_entry_t next; + for (cur = mgr->cache.next; cur; cur = next) + { + next = cur->next; + grub_free (cur->class_name); + grub_video_bitmap_destroy (cur->bitmap); + grub_free (cur); + } + mgr->cache.next = 0; +} + +/* Set the theme path. If the theme path is changed, the icon cache + is cleared. */ +void +grub_gfxmenu_icon_manager_set_theme_path (grub_gfxmenu_icon_manager_t mgr, + const char *path) +{ + /* Clear the cache if the theme path has changed. */ + if (mgr->theme_path == 0 && path == 0) + return; + if (mgr->theme_path == 0 || path == 0 + || grub_strcmp (mgr->theme_path, path) != 0) + grub_gfxmenu_icon_manager_clear_cache (mgr); + + grub_free (mgr->theme_path); + mgr->theme_path = path ? grub_strdup (path) : 0; +} + +/* Set the icon size. When icons are requested from the icon manager, + they are scaled to this size before being returned. If the size is + changed, the icon cache is cleared. */ +void +grub_gfxmenu_icon_manager_set_icon_size (grub_gfxmenu_icon_manager_t mgr, + int width, int height) +{ + /* If the width or height is changed, we must clear the cache, since the + scaled bitmaps are stored in the cache. */ + if (width != mgr->icon_width || height != mgr->icon_height) + grub_gfxmenu_icon_manager_clear_cache (mgr); + + mgr->icon_width = width; + mgr->icon_height = height; +} + +/* Try to load an icon for the specified CLASS_NAME in the directory DIR. + Returns 0 if the icon could not be loaded, or returns a pointer to a new + bitmap if it was successful. */ +static struct grub_video_bitmap * +try_loading_icon (grub_gfxmenu_icon_manager_t mgr, + const char *dir, const char *class_name) +{ + char *path, *ptr; + + path = grub_malloc (grub_strlen (dir) + grub_strlen (class_name) + + grub_strlen (icon_extension) + 3); + if (! path) + return 0; + + ptr = grub_stpcpy (path, dir); + if (path == ptr || ptr[-1] != '/') + *ptr++ = '/'; + ptr = grub_stpcpy (ptr, class_name); + ptr = grub_stpcpy (ptr, icon_extension); + *ptr = '\0'; + + struct grub_video_bitmap *raw_bitmap; + grub_video_bitmap_load (&raw_bitmap, path); + grub_free (path); + grub_errno = GRUB_ERR_NONE; /* Critical to clear the error!! */ + if (! raw_bitmap) + return 0; + + struct grub_video_bitmap *scaled_bitmap; + grub_video_bitmap_create_scaled (&scaled_bitmap, + mgr->icon_width, mgr->icon_height, + raw_bitmap, + GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST); + grub_video_bitmap_destroy (raw_bitmap); + if (! scaled_bitmap) + return 0; + + return scaled_bitmap; +} + +/* Get the icon for the specified class CLASS_NAME. If an icon for + CLASS_NAME already exists in the cache, then a reference to the cached + bitmap is returned. If it is not cached, then it is loaded and cached. + If no icon could be could for CLASS_NAME, then 0 is returned. */ +static struct grub_video_bitmap * +get_icon_by_class (grub_gfxmenu_icon_manager_t mgr, const char *class_name) +{ + /* First check the icon cache. */ + icon_entry_t entry; + for (entry = mgr->cache.next; entry; entry = entry->next) + { + if (grub_strcmp (entry->class_name, class_name) == 0) + return entry->bitmap; + } + + if (! mgr->theme_path) + return 0; + + /* Otherwise, we search for an icon to load. */ + char *theme_dir = grub_get_dirname (mgr->theme_path); + char *icons_dir; + struct grub_video_bitmap *icon; + icon = 0; + /* First try the theme's own icons, from "grub/themes/NAME/icons/" */ + icons_dir = grub_resolve_relative_path (theme_dir, "icons/"); + if (icons_dir) + { + icon = try_loading_icon (mgr, icons_dir, class_name); + grub_free (icons_dir); + } + + grub_free (theme_dir); + if (! icon) + { + const char *icondir; + + icondir = grub_env_get ("icondir"); + if (icondir) + icon = try_loading_icon (mgr, icondir, class_name); + } + + /* No icon was found. */ + /* This should probably be noted in the cache, so that a search is not + performed each time an icon for CLASS_NAME is requested. */ + if (! icon) + return 0; + + /* Insert a new cache entry for this icon. */ + entry = grub_malloc (sizeof (*entry)); + if (! entry) + { + grub_video_bitmap_destroy (icon); + return 0; + } + entry->class_name = grub_strdup (class_name); + entry->bitmap = icon; + entry->next = mgr->cache.next; + mgr->cache.next = entry; /* Link it into the cache. */ + return entry->bitmap; +} + +/* Get the best available icon for ENTRY. Beginning with the first class + listed in the menu entry and proceeding forward, an icon for each class + is searched for. The first icon found is returned. The returned icon + is scaled to the size specified by + grub_gfxmenu_icon_manager_set_icon_size(). + + Note: Bitmaps returned by this function are destroyed when the + icon manager is destroyed. + */ +struct grub_video_bitmap * +grub_gfxmenu_icon_manager_get_icon (grub_gfxmenu_icon_manager_t mgr, + grub_menu_entry_t entry) +{ + struct grub_menu_entry_class *c; + struct grub_video_bitmap *icon; + + /* Try each class in succession. */ + icon = 0; + for (c = entry->classes; c && ! icon; c = c->next) + icon = get_icon_by_class (mgr, c->name); + return icon; +} diff --git a/grub-core/gfxmenu/theme_loader.c b/grub-core/gfxmenu/theme_loader.c new file mode 100644 index 0000000..eae8308 --- /dev/null +++ b/grub-core/gfxmenu/theme_loader.c @@ -0,0 +1,828 @@ +/* theme_loader.c - Theme file loader for gfxmenu. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/types.h> +#include <grub/file.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/err.h> +#include <grub/dl.h> +#include <grub/video.h> +#include <grub/gui_string_util.h> +#include <grub/bitmap.h> +#include <grub/bitmap_scale.h> +#include <grub/gfxwidgets.h> +#include <grub/gfxmenu_view.h> +#include <grub/gui.h> +#include <grub/color.h> + +static grub_err_t +parse_proportional_spec (const char *value, signed *abs, grub_fixed_signed_t *prop); + +/* Construct a new box widget using ABSPATTERN to find the pixmap files for + it, storing the new box instance at *BOXPTR. + PATTERN should be of the form: "(hd0,0)/somewhere/style*.png". + The '*' then gets substituted with the various pixmap names that the + box uses. */ +static grub_err_t +recreate_box_absolute (grub_gfxmenu_box_t *boxptr, const char *abspattern) +{ + char *prefix; + char *suffix; + char *star; + grub_gfxmenu_box_t box; + + star = grub_strchr (abspattern, '*'); + if (! star) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + "missing `*' in box pixmap pattern `%s'", abspattern); + + /* Prefix: Get the part before the '*'. */ + prefix = grub_malloc (star - abspattern + 1); + if (! prefix) + return grub_errno; + + grub_memcpy (prefix, abspattern, star - abspattern); + prefix[star - abspattern] = '\0'; + + /* Suffix: Everything after the '*' is the suffix. */ + suffix = star + 1; + + box = grub_gfxmenu_create_box (prefix, suffix); + grub_free (prefix); + if (! box) + return grub_errno; + + if (*boxptr) + (*boxptr)->destroy (*boxptr); + *boxptr = box; + return grub_errno; +} + + +/* Construct a new box widget using PATTERN to find the pixmap files for it, + storing the new widget at *BOXPTR. PATTERN should be of the form: + "somewhere/style*.png". The '*' then gets substituted with the various + pixmap names that the widget uses. + + Important! The value of *BOXPTR must be initialized! It must either + (1) Be 0 (a NULL pointer), or + (2) Be a pointer to a valid 'grub_gfxmenu_box_t' instance. + In this case, the previous instance is destroyed. */ +grub_err_t +grub_gui_recreate_box (grub_gfxmenu_box_t *boxptr, + const char *pattern, const char *theme_dir) +{ + char *abspattern; + + /* Check arguments. */ + if (! pattern) + { + /* If no pixmap pattern is given, then just create an empty box. */ + if (*boxptr) + (*boxptr)->destroy (*boxptr); + *boxptr = grub_gfxmenu_create_box (0, 0); + return grub_errno; + } + + if (! theme_dir) + return grub_error (GRUB_ERR_BAD_ARGUMENT, + "styled box missing theme directory"); + + /* Resolve to an absolute path. */ + abspattern = grub_resolve_relative_path (theme_dir, pattern); + if (! abspattern) + return grub_errno; + + /* Create the box. */ + recreate_box_absolute (boxptr, abspattern); + grub_free (abspattern); + return grub_errno; +} + +static grub_err_t +theme_get_unsigned_int_from_proportional (const char *value, + unsigned absolute_value, + unsigned int *parsed_value) +{ + grub_err_t err; + grub_fixed_signed_t frac; + signed pixels; + err = parse_proportional_spec (value, &pixels, &frac); + if (err != GRUB_ERR_NONE) + return err; + int result = grub_fixed_sfs_multiply (absolute_value, frac) + pixels; + if (result < 0) + result = 0; + *parsed_value = result; + return GRUB_ERR_NONE; +} + +/* Set the specified property NAME on the view to the given string VALUE. + The caller is responsible for the lifetimes of NAME and VALUE. */ +static grub_err_t +theme_set_string (grub_gfxmenu_view_t view, + const char *name, + const char *value, + const char *theme_dir, + const char *filename, + int line_num, + int col_num) +{ + if (! grub_strcmp ("title-font", name)) + view->title_font = grub_font_get (value); + else if (! grub_strcmp ("message-font", name)) + view->message_font = grub_font_get (value); + else if (! grub_strcmp ("terminal-font", name)) + { + grub_free (view->terminal_font_name); + view->terminal_font_name = grub_strdup (value); + if (! view->terminal_font_name) + return grub_errno; + } + else if (! grub_strcmp ("title-color", name)) + grub_video_parse_color (value, &view->title_color); + else if (! grub_strcmp ("message-color", name)) + grub_video_parse_color (value, &view->message_color); + else if (! grub_strcmp ("message-bg-color", name)) + grub_video_parse_color (value, &view->message_bg_color); + else if (! grub_strcmp ("desktop-image", name)) + { + struct grub_video_bitmap *raw_bitmap; + char *path; + path = grub_resolve_relative_path (theme_dir, value); + if (! path) + return grub_errno; + if (grub_video_bitmap_load (&raw_bitmap, path) != GRUB_ERR_NONE) + { + grub_free (path); + return grub_errno; + } + grub_free(path); + grub_video_bitmap_destroy (view->raw_desktop_image); + view->raw_desktop_image = raw_bitmap; + } + else if (! grub_strcmp ("desktop-image-scale-method", name)) + { + if (! value || ! grub_strcmp ("stretch", value)) + view->desktop_image_scale_method = + GRUB_VIDEO_BITMAP_SELECTION_METHOD_STRETCH; + else if (! grub_strcmp ("crop", value)) + view->desktop_image_scale_method = + GRUB_VIDEO_BITMAP_SELECTION_METHOD_CROP; + else if (! grub_strcmp ("padding", value)) + view->desktop_image_scale_method = + GRUB_VIDEO_BITMAP_SELECTION_METHOD_PADDING; + else if (! grub_strcmp ("fitwidth", value)) + view->desktop_image_scale_method = + GRUB_VIDEO_BITMAP_SELECTION_METHOD_FITWIDTH; + else if (! grub_strcmp ("fitheight", value)) + view->desktop_image_scale_method = + GRUB_VIDEO_BITMAP_SELECTION_METHOD_FITHEIGHT; + else + return grub_error (GRUB_ERR_BAD_ARGUMENT, + "Unsupported scale method: %s", + value); + } + else if (! grub_strcmp ("desktop-image-h-align", name)) + { + if (! grub_strcmp ("left", value)) + view->desktop_image_h_align = GRUB_VIDEO_BITMAP_H_ALIGN_LEFT; + else if (! grub_strcmp ("center", value)) + view->desktop_image_h_align = GRUB_VIDEO_BITMAP_H_ALIGN_CENTER; + else if (! grub_strcmp ("right", value)) + view->desktop_image_h_align = GRUB_VIDEO_BITMAP_H_ALIGN_RIGHT; + else + return grub_error (GRUB_ERR_BAD_ARGUMENT, + "Unsupported horizontal align method: %s", + value); + } + else if (! grub_strcmp ("desktop-image-v-align", name)) + { + if (! grub_strcmp ("top", value)) + view->desktop_image_v_align = GRUB_VIDEO_BITMAP_V_ALIGN_TOP; + else if (! grub_strcmp ("center", value)) + view->desktop_image_v_align = GRUB_VIDEO_BITMAP_V_ALIGN_CENTER; + else if (! grub_strcmp ("bottom", value)) + view->desktop_image_v_align = GRUB_VIDEO_BITMAP_V_ALIGN_BOTTOM; + else + return grub_error (GRUB_ERR_BAD_ARGUMENT, + "Unsupported vertical align method: %s", + value); + } + else if (! grub_strcmp ("desktop-color", name)) + grub_video_parse_color (value, &view->desktop_color); + else if (! grub_strcmp ("terminal-box", name)) + { + grub_err_t err; + err = grub_gui_recreate_box (&view->terminal_box, value, theme_dir); + if (err != GRUB_ERR_NONE) + return err; + } + else if (! grub_strcmp ("terminal-border", name)) + { + view->terminal_border = grub_strtoul (value, 0, 10); + if (grub_errno) + return grub_errno; + } + else if (! grub_strcmp ("terminal-left", name)) + { + unsigned int tmp; + int err = theme_get_unsigned_int_from_proportional (value, + view->screen.width, + &tmp); + if (err != GRUB_ERR_NONE) + return err; + view->terminal_rect.x = tmp; + } + else if (! grub_strcmp ("terminal-top", name)) + { + unsigned int tmp; + int err = theme_get_unsigned_int_from_proportional (value, + view->screen.height, + &tmp); + if (err != GRUB_ERR_NONE) + return err; + view->terminal_rect.y = tmp; + } + else if (! grub_strcmp ("terminal-width", name)) + { + unsigned int tmp; + int err = theme_get_unsigned_int_from_proportional (value, + view->screen.width, + &tmp); + if (err != GRUB_ERR_NONE) + return err; + view->terminal_rect.width = tmp; + } + else if (! grub_strcmp ("terminal-height", name)) + { + unsigned int tmp; + int err = theme_get_unsigned_int_from_proportional (value, + view->screen.height, + &tmp); + if (err != GRUB_ERR_NONE) + return err; + view->terminal_rect.height = tmp; + } + else if (! grub_strcmp ("title-text", name)) + { + grub_free (view->title_text); + view->title_text = grub_strdup (value); + if (! view->title_text) + return grub_errno; + } + else + { + return grub_error (GRUB_ERR_BAD_ARGUMENT, + "%s:%d:%d unknown property `%s'", + filename, line_num, col_num, name); + } + return grub_errno; +} + +struct parsebuf +{ + char *buf; + int pos; + int len; + int line_num; + int col_num; + const char *filename; + char *theme_dir; + grub_gfxmenu_view_t view; +}; + +static int +has_more (struct parsebuf *p) +{ + return p->pos < p->len; +} + +static int +read_char (struct parsebuf *p) +{ + if (has_more (p)) + { + char c; + c = p->buf[p->pos++]; + if (c == '\n') + { + p->line_num++; + p->col_num = 1; + } + else + { + p->col_num++; + } + return c; + } + else + return -1; +} + +static int +peek_char (struct parsebuf *p) +{ + if (has_more (p)) + return p->buf[p->pos]; + else + return -1; +} + +static int +is_whitespace (char c) +{ + return (c == ' ' + || c == '\t' + || c == '\r' + || c == '\n' + || c == '\f'); +} + +static void +skip_whitespace (struct parsebuf *p) +{ + while (has_more (p) && is_whitespace(peek_char (p))) + read_char (p); +} + +static void +advance_to_next_line (struct parsebuf *p) +{ + int c; + + /* Eat characters up to the newline. */ + do + { + c = read_char (p); + } + while (c != -1 && c != '\n'); +} + +static int +is_identifier_char (int c) +{ + return (c != -1 + && (grub_isalpha(c) + || grub_isdigit(c) + || c == '_' + || c == '-')); +} + +static char * +read_identifier (struct parsebuf *p) +{ + /* Index of the first character of the identifier in p->buf. */ + int start; + /* Next index after the last character of the identifer in p->buf. */ + int end; + + skip_whitespace (p); + + /* Capture the start of the identifier. */ + start = p->pos; + + /* Scan for the end. */ + while (is_identifier_char (peek_char (p))) + read_char (p); + end = p->pos; + + if (end - start < 1) + return 0; + + return grub_new_substring (p->buf, start, end); +} + +static char * +read_expression (struct parsebuf *p) +{ + int start; + int end; + + skip_whitespace (p); + if (peek_char (p) == '"') + { + /* Read as a quoted string. + The quotation marks are not included in the expression value. */ + /* Skip opening quotation mark. */ + read_char (p); + start = p->pos; + while (has_more (p) && peek_char (p) != '"') + read_char (p); + end = p->pos; + /* Skip the terminating quotation mark. */ + read_char (p); + } + else if (peek_char (p) == '(') + { + /* Read as a parenthesized string -- for tuples/coordinates. */ + /* The parentheses are included in the expression value. */ + int c; + + start = p->pos; + do + { + c = read_char (p); + } + while (c != -1 && c != ')'); + end = p->pos; + } + else if (has_more (p)) + { + /* Read as a single word -- for numeric values or words without + whitespace. */ + start = p->pos; + while (has_more (p) && ! is_whitespace (peek_char (p))) + read_char (p); + end = p->pos; + } + else + { + /* The end of the theme file has been reached. */ + grub_error (GRUB_ERR_IO, "%s:%d:%d expression expected in theme file", + p->filename, p->line_num, p->col_num); + return 0; + } + + return grub_new_substring (p->buf, start, end); +} + +static grub_err_t +parse_proportional_spec (const char *value, signed *abs, grub_fixed_signed_t *prop) +{ + signed num; + const char *ptr; + int sig = 0; + *abs = 0; + *prop = 0; + ptr = value; + while (*ptr) + { + sig = 0; + + while (*ptr == '-' || *ptr == '+') + { + if (*ptr == '-') + sig = !sig; + ptr++; + } + + num = grub_strtoul (ptr, &ptr, 0); + if (grub_errno) + return grub_errno; + if (sig) + num = -num; + if (*ptr == '%') + { + *prop += grub_fixed_fsf_divide (grub_signed_to_fixed (num), 100); + ptr++; + } + else + *abs += num; + } + return GRUB_ERR_NONE; +} + + +/* Read a GUI object specification from the theme file. + Any components created will be added to the GUI container PARENT. */ +static grub_err_t +read_object (struct parsebuf *p, grub_gui_container_t parent) +{ + grub_video_rect_t bounds; + + char *name; + name = read_identifier (p); + if (! name) + goto cleanup; + + grub_gui_component_t component = 0; + if (grub_strcmp (name, "label") == 0) + { + component = grub_gui_label_new (); + } + else if (grub_strcmp (name, "image") == 0) + { + component = grub_gui_image_new (); + } + else if (grub_strcmp (name, "vbox") == 0) + { + component = (grub_gui_component_t) grub_gui_vbox_new (); + } + else if (grub_strcmp (name, "hbox") == 0) + { + component = (grub_gui_component_t) grub_gui_hbox_new (); + } + else if (grub_strcmp (name, "canvas") == 0) + { + component = (grub_gui_component_t) grub_gui_canvas_new (); + } + else if (grub_strcmp (name, "progress_bar") == 0) + { + component = grub_gui_progress_bar_new (); + } + else if (grub_strcmp (name, "circular_progress") == 0) + { + component = grub_gui_circular_progress_new (); + } + else if (grub_strcmp (name, "boot_menu") == 0) + { + component = grub_gui_list_new (); + } + else + { + /* Unknown type. */ + grub_error (GRUB_ERR_IO, "%s:%d:%d unknown object type `%s'", + p->filename, p->line_num, p->col_num, name); + goto cleanup; + } + + if (! component) + goto cleanup; + + /* Inform the component about the theme so it can find its resources. */ + component->ops->set_property (component, "theme_dir", p->theme_dir); + component->ops->set_property (component, "theme_path", p->filename); + + /* Add the component as a child of PARENT. */ + bounds.x = 0; + bounds.y = 0; + bounds.width = -1; + bounds.height = -1; + component->ops->set_bounds (component, &bounds); + parent->ops->add (parent, component); + + skip_whitespace (p); + if (read_char (p) != '{') + { + grub_error (GRUB_ERR_IO, + "%s:%d:%d expected `{' after object type name `%s'", + p->filename, p->line_num, p->col_num, name); + goto cleanup; + } + + while (has_more (p)) + { + skip_whitespace (p); + + /* Check whether the end has been encountered. */ + if (peek_char (p) == '}') + { + /* Skip the closing brace. */ + read_char (p); + break; + } + + if (peek_char (p) == '#') + { + /* Skip comments. */ + advance_to_next_line (p); + continue; + } + + if (peek_char (p) == '+') + { + /* Skip the '+'. */ + read_char (p); + + /* Check whether this component is a container. */ + if (component->ops->is_instance (component, "container")) + { + /* Read the sub-object recursively and add it as a child. */ + if (read_object (p, (grub_gui_container_t) component) != 0) + goto cleanup; + /* After reading the sub-object, resume parsing, expecting + another property assignment or sub-object definition. */ + continue; + } + else + { + grub_error (GRUB_ERR_IO, + "%s:%d:%d attempted to add object to non-container", + p->filename, p->line_num, p->col_num); + goto cleanup; + } + } + + char *property; + property = read_identifier (p); + if (! property) + { + grub_error (GRUB_ERR_IO, "%s:%d:%d identifier expected in theme file", + p->filename, p->line_num, p->col_num); + goto cleanup; + } + + skip_whitespace (p); + if (read_char (p) != '=') + { + grub_error (GRUB_ERR_IO, + "%s:%d:%d expected `=' after property name `%s'", + p->filename, p->line_num, p->col_num, property); + grub_free (property); + goto cleanup; + } + skip_whitespace (p); + + char *value; + value = read_expression (p); + if (! value) + { + grub_free (property); + goto cleanup; + } + + /* Handle the property value. */ + if (grub_strcmp (property, "left") == 0) + parse_proportional_spec (value, &component->x, &component->xfrac); + else if (grub_strcmp (property, "top") == 0) + parse_proportional_spec (value, &component->y, &component->yfrac); + else if (grub_strcmp (property, "width") == 0) + parse_proportional_spec (value, &component->w, &component->wfrac); + else if (grub_strcmp (property, "height") == 0) + parse_proportional_spec (value, &component->h, &component->hfrac); + else + /* General property handling. */ + component->ops->set_property (component, property, value); + + grub_free (value); + grub_free (property); + if (grub_errno != GRUB_ERR_NONE) + goto cleanup; + } + +cleanup: + grub_free (name); + return grub_errno; +} + +static grub_err_t +read_property (struct parsebuf *p) +{ + char *name; + + /* Read the property name. */ + name = read_identifier (p); + if (! name) + { + advance_to_next_line (p); + return grub_errno; + } + + /* Skip whitespace before separator. */ + skip_whitespace (p); + + /* Read separator. */ + if (read_char (p) != ':') + { + grub_error (GRUB_ERR_IO, + "%s:%d:%d missing separator after property name `%s'", + p->filename, p->line_num, p->col_num, name); + goto done; + } + + /* Skip whitespace after separator. */ + skip_whitespace (p); + + /* Get the value based on its type. */ + if (peek_char (p) == '"') + { + /* String value (e.g., '"My string"'). */ + char *value = read_expression (p); + if (! value) + { + grub_error (GRUB_ERR_IO, "%s:%d:%d missing property value", + p->filename, p->line_num, p->col_num); + goto done; + } + /* If theme_set_string results in an error, grub_errno will be returned + below. */ + theme_set_string (p->view, name, value, p->theme_dir, + p->filename, p->line_num, p->col_num); + grub_free (value); + } + else + { + grub_error (GRUB_ERR_IO, + "%s:%d:%d property value invalid; " + "enclose literal values in quotes (\")", + p->filename, p->line_num, p->col_num); + goto done; + } + +done: + grub_free (name); + return grub_errno; +} + +/* Set properties on the view based on settings from the specified + theme file. */ +grub_err_t +grub_gfxmenu_view_load_theme (grub_gfxmenu_view_t view, const char *theme_path) +{ + grub_file_t file; + struct parsebuf p; + + p.view = view; + p.theme_dir = grub_get_dirname (theme_path); + + file = grub_file_open (theme_path, GRUB_FILE_TYPE_THEME); + if (! file) + { + grub_free (p.theme_dir); + return grub_errno; + } + + p.len = grub_file_size (file); + p.buf = grub_malloc (p.len); + p.pos = 0; + p.line_num = 1; + p.col_num = 1; + p.filename = theme_path; + if (! p.buf) + { + grub_file_close (file); + grub_free (p.theme_dir); + return grub_errno; + } + if (grub_file_read (file, p.buf, p.len) != p.len) + { + grub_free (p.buf); + grub_file_close (file); + grub_free (p.theme_dir); + return grub_errno; + } + + if (view->canvas) + view->canvas->component.ops->destroy (view->canvas); + + view->canvas = grub_gui_canvas_new (); + if (!view->canvas) + goto fail; + ((grub_gui_component_t) view->canvas) + ->ops->set_bounds ((grub_gui_component_t) view->canvas, + &view->screen); + + while (has_more (&p)) + { + /* Skip comments (lines beginning with #). */ + if (peek_char (&p) == '#') + { + advance_to_next_line (&p); + continue; + } + + /* Find the first non-whitespace character. */ + skip_whitespace (&p); + + /* Handle the content. */ + if (peek_char (&p) == '+') + { + /* Skip the '+'. */ + read_char (&p); + read_object (&p, view->canvas); + } + else + { + read_property (&p); + } + + if (grub_errno != GRUB_ERR_NONE) + goto fail; + } + + /* Set the new theme path. */ + grub_free (view->theme_path); + view->theme_path = grub_strdup (theme_path); + goto cleanup; + +fail: + if (view->canvas) + { + view->canvas->component.ops->destroy (view->canvas); + view->canvas = 0; + } + +cleanup: + grub_free (p.buf); + grub_file_close (file); + grub_free (p.theme_dir); + return grub_errno; +} diff --git a/grub-core/gfxmenu/view.c b/grub-core/gfxmenu/view.c new file mode 100644 index 0000000..ad5e82b --- /dev/null +++ b/grub-core/gfxmenu/view.c @@ -0,0 +1,647 @@ +/* view.c - Graphical menu interface MVC view. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/types.h> +#include <grub/file.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/err.h> +#include <grub/dl.h> +#include <grub/normal.h> +#include <grub/video.h> +#include <grub/gfxterm.h> +#include <grub/bitmap.h> +#include <grub/bitmap_scale.h> +#include <grub/term.h> +#include <grub/gfxwidgets.h> +#include <grub/time.h> +#include <grub/menu.h> +#include <grub/menu_viewer.h> +#include <grub/gfxmenu_view.h> +#include <grub/gui_string_util.h> +#include <grub/icon_manager.h> +#include <grub/i18n.h> + +static void +init_terminal (grub_gfxmenu_view_t view); +static void +init_background (grub_gfxmenu_view_t view); +static grub_gfxmenu_view_t term_view; + +/* Create a new view object, loading the theme specified by THEME_PATH and + associating MODEL with the view. */ +grub_gfxmenu_view_t +grub_gfxmenu_view_new (const char *theme_path, + int width, int height) +{ + grub_gfxmenu_view_t view; + grub_font_t default_font; + grub_video_rgba_color_t default_fg_color; + grub_video_rgba_color_t default_bg_color; + + view = grub_malloc (sizeof (*view)); + if (! view) + return 0; + + while (grub_gfxmenu_timeout_notifications) + { + struct grub_gfxmenu_timeout_notify *p; + p = grub_gfxmenu_timeout_notifications; + grub_gfxmenu_timeout_notifications = grub_gfxmenu_timeout_notifications->next; + grub_free (p); + } + + view->screen.x = 0; + view->screen.y = 0; + view->screen.width = width; + view->screen.height = height; + + view->need_to_check_sanity = 1; + view->terminal_border = 3; + view->terminal_rect.width = view->screen.width * 7 / 10; + view->terminal_rect.height = view->screen.height * 7 / 10; + view->terminal_rect.x = view->screen.x + (view->screen.width + - view->terminal_rect.width) / 2; + view->terminal_rect.y = view->screen.y + (view->screen.height + - view->terminal_rect.height) / 2; + + default_font = grub_font_get ("Unknown Regular 16"); + default_fg_color = grub_video_rgba_color_rgb (0, 0, 0); + default_bg_color = grub_video_rgba_color_rgb (255, 255, 255); + + view->canvas = 0; + + view->title_font = default_font; + view->message_font = default_font; + view->terminal_font_name = grub_strdup ("Fixed 10"); + view->title_color = default_fg_color; + view->message_color = default_bg_color; + view->message_bg_color = default_fg_color; + view->raw_desktop_image = 0; + view->scaled_desktop_image = 0; + view->desktop_image_scale_method = GRUB_VIDEO_BITMAP_SELECTION_METHOD_STRETCH; + view->desktop_image_h_align = GRUB_VIDEO_BITMAP_H_ALIGN_CENTER; + view->desktop_image_v_align = GRUB_VIDEO_BITMAP_V_ALIGN_CENTER; + view->desktop_color = default_bg_color; + view->terminal_box = grub_gfxmenu_create_box (0, 0); + view->title_text = grub_strdup (_("GRUB Boot Menu")); + view->progress_message_text = 0; + view->theme_path = 0; + + /* Set the timeout bar's frame. */ + view->progress_message_frame.width = view->screen.width * 4 / 5; + view->progress_message_frame.height = 50; + view->progress_message_frame.x = view->screen.x + + (view->screen.width - view->progress_message_frame.width) / 2; + view->progress_message_frame.y = view->screen.y + + view->screen.height - 90 - 20 - view->progress_message_frame.height; + + if (grub_gfxmenu_view_load_theme (view, theme_path) != 0) + { + grub_gfxmenu_view_destroy (view); + return 0; + } + + return view; +} + +/* Destroy the view object. All used memory is freed. */ +void +grub_gfxmenu_view_destroy (grub_gfxmenu_view_t view) +{ + if (!view) + return; + while (grub_gfxmenu_timeout_notifications) + { + struct grub_gfxmenu_timeout_notify *p; + p = grub_gfxmenu_timeout_notifications; + grub_gfxmenu_timeout_notifications = grub_gfxmenu_timeout_notifications->next; + grub_free (p); + } + grub_video_bitmap_destroy (view->raw_desktop_image); + grub_video_bitmap_destroy (view->scaled_desktop_image); + if (view->terminal_box) + view->terminal_box->destroy (view->terminal_box); + grub_free (view->terminal_font_name); + grub_free (view->title_text); + grub_free (view->progress_message_text); + grub_free (view->theme_path); + if (view->canvas) + view->canvas->component.ops->destroy (view->canvas); + grub_free (view); +} + +static void +redraw_background (grub_gfxmenu_view_t view, + const grub_video_rect_t *bounds) +{ + if (view->scaled_desktop_image) + { + struct grub_video_bitmap *img = view->scaled_desktop_image; + grub_video_blit_bitmap (img, GRUB_VIDEO_BLIT_REPLACE, + bounds->x, bounds->y, + bounds->x - view->screen.x, + bounds->y - view->screen.y, + bounds->width, bounds->height); + } + else + { + grub_video_fill_rect (grub_video_map_rgba_color (view->desktop_color), + bounds->x, bounds->y, + bounds->width, bounds->height); + } +} + +static void +draw_title (grub_gfxmenu_view_t view) +{ + if (! view->title_text) + return; + + /* Center the title. */ + int title_width = grub_font_get_string_width (view->title_font, + view->title_text); + int x = (view->screen.width - title_width) / 2; + int y = 40 + grub_font_get_ascent (view->title_font); + grub_font_draw_string (view->title_text, + view->title_font, + grub_video_map_rgba_color (view->title_color), + x, y); +} + +struct progress_value_data +{ + int visible; + int start; + int end; + int value; +}; + +struct grub_gfxmenu_timeout_notify *grub_gfxmenu_timeout_notifications; + +static void +update_timeouts (int visible, int start, int value, int end) +{ + struct grub_gfxmenu_timeout_notify *cur; + + for (cur = grub_gfxmenu_timeout_notifications; cur; cur = cur->next) + cur->set_state (cur->self, visible, start, value, end); +} + +static void +redraw_timeouts (struct grub_gfxmenu_view *view) +{ + struct grub_gfxmenu_timeout_notify *cur; + + for (cur = grub_gfxmenu_timeout_notifications; cur; cur = cur->next) + { + grub_video_rect_t bounds; + cur->self->ops->get_bounds (cur->self, &bounds); + grub_video_set_area_status (GRUB_VIDEO_AREA_ENABLED); + grub_gfxmenu_view_redraw (view, &bounds); + } +} + +void +grub_gfxmenu_print_timeout (int timeout, void *data) +{ + struct grub_gfxmenu_view *view = data; + + if (view->first_timeout == -1) + view->first_timeout = timeout; + + update_timeouts (1, -view->first_timeout, -timeout, 0); + redraw_timeouts (view); + grub_video_swap_buffers (); + if (view->double_repaint) + redraw_timeouts (view); +} + +void +grub_gfxmenu_clear_timeout (void *data) +{ + struct grub_gfxmenu_view *view = data; + + update_timeouts (0, 1, 0, 0); + redraw_timeouts (view); + grub_video_swap_buffers (); + if (view->double_repaint) + redraw_timeouts (view); +} + +static void +update_menu_visit (grub_gui_component_t component, + void *userdata) +{ + grub_gfxmenu_view_t view; + view = userdata; + if (component->ops->is_instance (component, "list")) + { + grub_gui_list_t list = (grub_gui_list_t) component; + list->ops->set_view_info (list, view); + } +} + +/* Update any boot menu components with the current menu model and + theme path. */ +static void +update_menu_components (grub_gfxmenu_view_t view) +{ + grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas, + update_menu_visit, view); +} + +static void +refresh_menu_visit (grub_gui_component_t component, + void *userdata) +{ + grub_gfxmenu_view_t view; + view = userdata; + if (component->ops->is_instance (component, "list")) + { + grub_gui_list_t list = (grub_gui_list_t) component; + list->ops->refresh_list (list, view); + } +} + +/* Refresh list information (useful for submenus) */ +static void +refresh_menu_components (grub_gfxmenu_view_t view) +{ + grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas, + refresh_menu_visit, view); +} + +static void +draw_message (grub_gfxmenu_view_t view) +{ + char *text = view->progress_message_text; + grub_video_rect_t f = view->progress_message_frame; + if (! text) + return; + + grub_font_t font = view->message_font; + grub_video_color_t color = grub_video_map_rgba_color (view->message_color); + + /* Border. */ + grub_video_fill_rect (color, + f.x-1, f.y-1, f.width+2, f.height+2); + /* Fill. */ + grub_video_fill_rect (grub_video_map_rgba_color (view->message_bg_color), + f.x, f.y, f.width, f.height); + + /* Center the text. */ + int text_width = grub_font_get_string_width (font, text); + int x = f.x + (f.width - text_width) / 2; + int y = (f.y + (f.height - grub_font_get_descent (font)) / 2 + + grub_font_get_ascent (font) / 2); + grub_font_draw_string (text, font, color, x, y); +} + +void +grub_gfxmenu_view_redraw (grub_gfxmenu_view_t view, + const grub_video_rect_t *region) +{ + if (grub_video_have_common_points (&view->terminal_rect, region)) + grub_gfxterm_schedule_repaint (); + + grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY); + grub_video_area_status_t area_status; + grub_video_get_area_status (&area_status); + if (area_status == GRUB_VIDEO_AREA_ENABLED) + grub_video_set_region (region->x, region->y, + region->width, region->height); + + redraw_background (view, region); + if (view->canvas) + view->canvas->component.ops->paint (view->canvas, region); + draw_title (view); + if (grub_video_have_common_points (&view->progress_message_frame, region)) + draw_message (view); + + if (area_status == GRUB_VIDEO_AREA_ENABLED) + grub_video_set_area_status (GRUB_VIDEO_AREA_ENABLED); +} + +void +grub_gfxmenu_view_draw (grub_gfxmenu_view_t view) +{ + init_terminal (view); + + init_background (view); + + /* Clear the screen; there may be garbage left over in video memory. */ + grub_video_fill_rect (grub_video_map_rgb (0, 0, 0), + view->screen.x, view->screen.y, + view->screen.width, view->screen.height); + grub_video_swap_buffers (); + if (view->double_repaint) + grub_video_fill_rect (grub_video_map_rgb (0, 0, 0), + view->screen.x, view->screen.y, + view->screen.width, view->screen.height); + + refresh_menu_components (view); + update_menu_components (view); + + grub_video_set_area_status (GRUB_VIDEO_AREA_DISABLED); + grub_gfxmenu_view_redraw (view, &view->screen); + grub_video_swap_buffers (); + if (view->double_repaint) + { + grub_video_set_area_status (GRUB_VIDEO_AREA_DISABLED); + grub_gfxmenu_view_redraw (view, &view->screen); + } + +} + +static void +redraw_menu_visit (grub_gui_component_t component, + void *userdata) +{ + grub_gfxmenu_view_t view; + view = userdata; + if (component->ops->is_instance (component, "list")) + { + grub_video_rect_t bounds; + + component->ops->get_bounds (component, &bounds); + grub_video_set_area_status (GRUB_VIDEO_AREA_ENABLED); + grub_gfxmenu_view_redraw (view, &bounds); + } +} + +void +grub_gfxmenu_redraw_menu (grub_gfxmenu_view_t view) +{ + update_menu_components (view); + + grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas, + redraw_menu_visit, view); + grub_video_swap_buffers (); + if (view->double_repaint) + { + grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas, + redraw_menu_visit, view); + } +} + +void +grub_gfxmenu_set_chosen_entry (int entry, void *data) +{ + grub_gfxmenu_view_t view = data; + + view->selected = entry; + grub_gfxmenu_redraw_menu (view); +} + +static void +grub_gfxmenu_draw_terminal_box (void) +{ + grub_gfxmenu_box_t term_box; + + term_box = term_view->terminal_box; + if (!term_box) + return; + + grub_video_set_area_status (GRUB_VIDEO_AREA_DISABLED); + + term_box->set_content_size (term_box, term_view->terminal_rect.width, + term_view->terminal_rect.height); + + term_box->draw (term_box, + term_view->terminal_rect.x - term_box->get_left_pad (term_box), + term_view->terminal_rect.y - term_box->get_top_pad (term_box)); +} + +static void +get_min_terminal (grub_font_t terminal_font, + unsigned int border_width, + unsigned int *min_terminal_width, + unsigned int *min_terminal_height) +{ + struct grub_font_glyph *glyph; + glyph = grub_font_get_glyph (terminal_font, 'M'); + *min_terminal_width = (glyph? glyph->device_width : 8) * 80 + + 2 * border_width; + *min_terminal_height = grub_font_get_max_char_height (terminal_font) * 24 + + 2 * border_width; +} + +static void +terminal_sanity_check (grub_gfxmenu_view_t view) +{ + if (!view->need_to_check_sanity) + return; + + /* terminal_font was checked before in the init_terminal function. */ + grub_font_t terminal_font = grub_font_get (view->terminal_font_name); + + /* Non-negative numbers below. */ + int scr_x = view->screen.x; + int scr_y = view->screen.y; + int scr_width = view->screen.width; + int scr_height = view->screen.height; + int term_x = view->terminal_rect.x; + int term_y = view->terminal_rect.y; + int term_width = view->terminal_rect.width; + int term_height = view->terminal_rect.height; + + /* Check that border_width isn't too big. */ + unsigned int border_width = view->terminal_border; + unsigned int min_terminal_width; + unsigned int min_terminal_height; + get_min_terminal (terminal_font, border_width, + &min_terminal_width, &min_terminal_height); + if (border_width > 3 && ((int) min_terminal_width >= scr_width + || (int) min_terminal_height >= scr_height)) + { + border_width = 3; + get_min_terminal (terminal_font, border_width, + &min_terminal_width, &min_terminal_height); + } + + /* Sanity checks. */ + if (term_width > scr_width) + term_width = scr_width; + if (term_height > scr_height) + term_height = scr_height; + + if (scr_width <= (int) min_terminal_width + || scr_height <= (int) min_terminal_height) + { + /* The screen resulution is too low. Use all space, except a small border + to show the user, that it is a window. Then center the window. */ + term_width = scr_width - 6 * border_width; + term_height = scr_height - 6 * border_width; + term_x = scr_x + (scr_width - term_width) / 2; + term_y = scr_y + (scr_height - term_height) / 2; + } + else if (term_width < (int) min_terminal_width + || term_height < (int) min_terminal_height) + { + /* The screen resolution is big enough. Make sure, that terminal screen + dimensions aren't less than minimal values. Then center the window. */ + term_width = (int) min_terminal_width; + term_height = (int) min_terminal_height; + term_x = scr_x + (scr_width - term_width) / 2; + term_y = scr_y + (scr_height - term_height) / 2; + } + + /* At this point w and h are satisfying. */ + if (term_x + term_width > scr_width) + term_x = scr_width - term_width; + if (term_y + term_height > scr_height) + term_y = scr_height - term_height; + + /* Write down corrected data. */ + view->terminal_rect.x = (unsigned int) term_x; + view->terminal_rect.y = (unsigned int) term_y; + view->terminal_rect.width = (unsigned int) term_width; + view->terminal_rect.height = (unsigned int) term_height; + view->terminal_border = border_width; + + view->need_to_check_sanity = 0; +} + +static void +init_terminal (grub_gfxmenu_view_t view) +{ + grub_font_t terminal_font; + + terminal_font = grub_font_get (view->terminal_font_name); + if (!terminal_font) + { + grub_error (GRUB_ERR_BAD_FONT, "no font loaded"); + return; + } + + /* Check that terminal window size and position are sane. */ + terminal_sanity_check (view); + + term_view = view; + + /* Note: currently there is no API for changing the gfxterm font + on the fly, so whatever font the initially loaded theme specifies + will be permanent. */ + grub_gfxterm_set_window (GRUB_VIDEO_RENDER_TARGET_DISPLAY, + view->terminal_rect.x, + view->terminal_rect.y, + view->terminal_rect.width, + view->terminal_rect.height, + view->double_repaint, + terminal_font, + view->terminal_border); + grub_gfxterm_decorator_hook = grub_gfxmenu_draw_terminal_box; +} + +static void +init_background (grub_gfxmenu_view_t view) +{ + if (view->scaled_desktop_image) + return; + + struct grub_video_bitmap *scaled_bitmap; + if (view->desktop_image_scale_method == + GRUB_VIDEO_BITMAP_SELECTION_METHOD_STRETCH) + grub_video_bitmap_create_scaled (&scaled_bitmap, + view->screen.width, + view->screen.height, + view->raw_desktop_image, + GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST); + else + grub_video_bitmap_scale_proportional (&scaled_bitmap, + view->screen.width, + view->screen.height, + view->raw_desktop_image, + GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST, + view->desktop_image_scale_method, + view->desktop_image_v_align, + view->desktop_image_h_align); + if (! scaled_bitmap) + return; + view->scaled_desktop_image = scaled_bitmap; + +} + +/* FIXME: previously notifications were displayed in special case. + Is it necessary? + */ +#if 0 +/* Sets MESSAGE as the progress message for the view. + MESSAGE can be 0, in which case no message is displayed. */ +static void +set_progress_message (grub_gfxmenu_view_t view, const char *message) +{ + grub_free (view->progress_message_text); + if (message) + view->progress_message_text = grub_strdup (message); + else + view->progress_message_text = 0; +} + +static void +notify_booting (grub_menu_entry_t entry, void *userdata) +{ + grub_gfxmenu_view_t view = (grub_gfxmenu_view_t) userdata; + + char *s = grub_malloc (100 + grub_strlen (entry->title)); + if (!s) + return; + + grub_sprintf (s, "Booting '%s'", entry->title); + set_progress_message (view, s); + grub_free (s); + grub_gfxmenu_view_redraw (view, &view->progress_message_frame); + grub_video_swap_buffers (); + if (view->double_repaint) + grub_gfxmenu_view_redraw (view, &view->progress_message_frame); +} + +static void +notify_fallback (grub_menu_entry_t entry, void *userdata) +{ + grub_gfxmenu_view_t view = (grub_gfxmenu_view_t) userdata; + + char *s = grub_malloc (100 + grub_strlen (entry->title)); + if (!s) + return; + + grub_sprintf (s, "Falling back to '%s'", entry->title); + set_progress_message (view, s); + grub_free (s); + grub_gfxmenu_view_redraw (view, &view->progress_message_frame); + grub_video_swap_buffers (); + if (view->double_repaint) + grub_gfxmenu_view_redraw (view, &view->progress_message_frame); +} + +static void +notify_execution_failure (void *userdata __attribute__ ((unused))) +{ +} + + +static struct grub_menu_execute_callback execute_callback = +{ + .notify_booting = notify_booting, + .notify_fallback = notify_fallback, + .notify_failure = notify_execution_failure +}; + +#endif diff --git a/grub-core/gfxmenu/widget-box.c b/grub-core/gfxmenu/widget-box.c new file mode 100644 index 0000000..470597d --- /dev/null +++ b/grub-core/gfxmenu/widget-box.c @@ -0,0 +1,360 @@ +/* widget_box.c - Pixmap-stylized box widget. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/types.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/err.h> +#include <grub/video.h> +#include <grub/bitmap.h> +#include <grub/bitmap_scale.h> +#include <grub/gfxwidgets.h> + +enum box_pixmaps +{ + BOX_PIXMAP_NW, BOX_PIXMAP_NE, BOX_PIXMAP_SE, BOX_PIXMAP_SW, + BOX_PIXMAP_N, BOX_PIXMAP_E, BOX_PIXMAP_S, BOX_PIXMAP_W, + BOX_PIXMAP_CENTER +}; + +static const char *box_pixmap_names[] = { + /* Corners: */ + "nw", "ne", "se", "sw", + /* Sides: */ + "n", "e", "s", "w", + /* Center: */ + "c" +}; + +#define BOX_NUM_PIXMAPS (sizeof(box_pixmap_names)/sizeof(*box_pixmap_names)) + +static int +get_height (struct grub_video_bitmap *bitmap) +{ + if (bitmap) + return grub_video_bitmap_get_height (bitmap); + else + return 0; +} + +static int +get_width (struct grub_video_bitmap *bitmap) +{ + if (bitmap) + return grub_video_bitmap_get_width (bitmap); + else + return 0; +} + +static void +blit (grub_gfxmenu_box_t self, int pixmap_index, int x, int y) +{ + struct grub_video_bitmap *bitmap; + bitmap = self->scaled_pixmaps[pixmap_index]; + if (! bitmap) + return; + grub_video_blit_bitmap (bitmap, GRUB_VIDEO_BLIT_BLEND, + x, y, 0, 0, + grub_video_bitmap_get_width (bitmap), + grub_video_bitmap_get_height (bitmap)); +} + +static void +draw (grub_gfxmenu_box_t self, int x, int y) +{ + int height_n; + int width_w; + int tmp; + + /* Count maximum height of NW, N, NE. */ + height_n = get_height (self->scaled_pixmaps[BOX_PIXMAP_NW]); + tmp = get_height (self->scaled_pixmaps[BOX_PIXMAP_N]); + if (tmp > height_n) + height_n = tmp; + tmp = get_height (self->scaled_pixmaps[BOX_PIXMAP_NE]); + if (tmp > height_n) + height_n = tmp; + + /* Count maximum width of NW, W, SW. */ + width_w = get_width (self->scaled_pixmaps[BOX_PIXMAP_NW]); + tmp = get_width (self->scaled_pixmaps[BOX_PIXMAP_W]); + if (tmp > width_w) + width_w = tmp; + tmp = get_width (self->scaled_pixmaps[BOX_PIXMAP_SW]); + if (tmp > width_w) + width_w = tmp; + + /* Draw sides. */ + blit (self, BOX_PIXMAP_N, x + width_w, y); + blit (self, BOX_PIXMAP_S, x + width_w, y + height_n + self->content_height); + blit (self, BOX_PIXMAP_E, x + width_w + self->content_width, y + height_n); + blit (self, BOX_PIXMAP_W, x, y + height_n); + + /* Draw corners. */ + blit (self, BOX_PIXMAP_NW, x, y); + blit (self, BOX_PIXMAP_NE, x + width_w + self->content_width, y); + blit (self, BOX_PIXMAP_SE, + x + width_w + self->content_width, + y + height_n + self->content_height); + blit (self, BOX_PIXMAP_SW, x, y + height_n + self->content_height); + + /* Draw center. */ + blit (self, BOX_PIXMAP_CENTER, x + width_w, y + height_n); +} + +static grub_err_t +scale_pixmap (grub_gfxmenu_box_t self, int i, int w, int h) +{ + struct grub_video_bitmap **scaled = &self->scaled_pixmaps[i]; + struct grub_video_bitmap *raw = self->raw_pixmaps[i]; + + if (raw == 0) + return grub_errno; + + if (w == -1) + w = grub_video_bitmap_get_width (raw); + if (h == -1) + h = grub_video_bitmap_get_height (raw); + + if (*scaled == 0 + || ((int) grub_video_bitmap_get_width (*scaled) != w) + || ((int) grub_video_bitmap_get_height (*scaled) != h)) + { + if (*scaled) + { + grub_video_bitmap_destroy (*scaled); + *scaled = 0; + } + + /* Don't try to create a bitmap with a zero dimension. */ + if (w != 0 && h != 0) + grub_video_bitmap_create_scaled (scaled, w, h, raw, + GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST); + } + + return grub_errno; +} + +static void +set_content_size (grub_gfxmenu_box_t self, + int width, int height) +{ + self->content_width = width; + self->content_height = height; + + /* Resize sides to match the width and height. */ + /* It is assumed that the corners width/height match the adjacent sides. */ + + /* Resize N and S sides to match width. */ + if (scale_pixmap(self, BOX_PIXMAP_N, width, -1) != GRUB_ERR_NONE) + return; + if (scale_pixmap(self, BOX_PIXMAP_S, width, -1) != GRUB_ERR_NONE) + return; + + /* Resize E and W sides to match height. */ + if (scale_pixmap(self, BOX_PIXMAP_E, -1, height) != GRUB_ERR_NONE) + return; + if (scale_pixmap(self, BOX_PIXMAP_W, -1, height) != GRUB_ERR_NONE) + return; + + /* Don't scale the corners--they are assumed to match the sides. */ + if (scale_pixmap(self, BOX_PIXMAP_NW, -1, -1) != GRUB_ERR_NONE) + return; + if (scale_pixmap(self, BOX_PIXMAP_SW, -1, -1) != GRUB_ERR_NONE) + return; + if (scale_pixmap(self, BOX_PIXMAP_NE, -1, -1) != GRUB_ERR_NONE) + return; + if (scale_pixmap(self, BOX_PIXMAP_SE, -1, -1) != GRUB_ERR_NONE) + return; + + /* Scale the center area. */ + if (scale_pixmap(self, BOX_PIXMAP_CENTER, width, height) != GRUB_ERR_NONE) + return; +} + +static int +get_border_width (grub_gfxmenu_box_t self) +{ + return (get_width (self->raw_pixmaps[BOX_PIXMAP_E]) + + get_width (self->raw_pixmaps[BOX_PIXMAP_W])); +} + +static int +get_left_pad (grub_gfxmenu_box_t self) +{ + int v, c; + + v = get_width (self->raw_pixmaps[BOX_PIXMAP_W]); + c = get_width (self->raw_pixmaps[BOX_PIXMAP_NW]); + if (c > v) + v = c; + c = get_width (self->raw_pixmaps[BOX_PIXMAP_SW]); + if (c > v) + v = c; + + return v; +} + +static int +get_top_pad (grub_gfxmenu_box_t self) +{ + int v, c; + + v = get_height (self->raw_pixmaps[BOX_PIXMAP_N]); + c = get_height (self->raw_pixmaps[BOX_PIXMAP_NW]); + if (c > v) + v = c; + c = get_height (self->raw_pixmaps[BOX_PIXMAP_NE]); + if (c > v) + v = c; + + return v; +} + +static int +get_right_pad (grub_gfxmenu_box_t self) +{ + int v, c; + + v = get_width (self->raw_pixmaps[BOX_PIXMAP_E]); + c = get_width (self->raw_pixmaps[BOX_PIXMAP_NE]); + if (c > v) + v = c; + c = get_width (self->raw_pixmaps[BOX_PIXMAP_SE]); + if (c > v) + v = c; + + return v; +} + +static int +get_bottom_pad (grub_gfxmenu_box_t self) +{ + int v, c; + + v = get_height (self->raw_pixmaps[BOX_PIXMAP_S]); + c = get_height (self->raw_pixmaps[BOX_PIXMAP_SW]); + if (c > v) + v = c; + c = get_height (self->raw_pixmaps[BOX_PIXMAP_SE]); + if (c > v) + v = c; + + return v; +} + +static void +destroy (grub_gfxmenu_box_t self) +{ + unsigned i; + for (i = 0; i < BOX_NUM_PIXMAPS; i++) + { + if (self->raw_pixmaps[i]) + grub_video_bitmap_destroy(self->raw_pixmaps[i]); + self->raw_pixmaps[i] = 0; + + if (self->scaled_pixmaps[i]) + grub_video_bitmap_destroy(self->scaled_pixmaps[i]); + self->scaled_pixmaps[i] = 0; + } + grub_free (self->raw_pixmaps); + self->raw_pixmaps = 0; + grub_free (self->scaled_pixmaps); + self->scaled_pixmaps = 0; + + /* Free self: must be the last step! */ + grub_free (self); +} + + +/* Create a new box. If PIXMAPS_PREFIX and PIXMAPS_SUFFIX are both non-null, + then an attempt is made to load the north, south, east, west, northwest, + northeast, southeast, southwest, and center pixmaps. + If either PIXMAPS_PREFIX or PIXMAPS_SUFFIX is 0, then no pixmaps are + loaded, and the box has zero-width borders and is drawn transparent. */ +grub_gfxmenu_box_t +grub_gfxmenu_create_box (const char *pixmaps_prefix, + const char *pixmaps_suffix) +{ + unsigned i; + grub_gfxmenu_box_t box; + + box = (grub_gfxmenu_box_t) grub_malloc (sizeof (*box)); + if (! box) + return 0; + + box->content_width = 0; + box->content_height = 0; + box->raw_pixmaps = + (struct grub_video_bitmap **) + grub_calloc (BOX_NUM_PIXMAPS, sizeof (struct grub_video_bitmap *)); + box->scaled_pixmaps = + (struct grub_video_bitmap **) + grub_calloc (BOX_NUM_PIXMAPS, sizeof (struct grub_video_bitmap *)); + + /* Initialize all pixmap pointers to NULL so that proper destruction can + be performed if an error is encountered partway through construction. */ + for (i = 0; i < BOX_NUM_PIXMAPS; i++) + box->raw_pixmaps[i] = 0; + for (i = 0; i < BOX_NUM_PIXMAPS; i++) + box->scaled_pixmaps[i] = 0; + + /* Load the pixmaps. */ + for (i = 0; i < BOX_NUM_PIXMAPS; i++) + { + if (pixmaps_prefix && pixmaps_suffix) + { + char *path; + char *path_end; + + path = grub_malloc (grub_strlen (pixmaps_prefix) + + grub_strlen (box_pixmap_names[i]) + + grub_strlen (pixmaps_suffix) + + 1); + if (! path) + goto fail_and_destroy; + + /* Construct the specific path for this pixmap. */ + path_end = grub_stpcpy (path, pixmaps_prefix); + path_end = grub_stpcpy (path_end, box_pixmap_names[i]); + path_end = grub_stpcpy (path_end, pixmaps_suffix); + + grub_video_bitmap_load (&box->raw_pixmaps[i], path); + grub_free (path); + + /* Ignore missing pixmaps. */ + grub_errno = GRUB_ERR_NONE; + } + } + + box->draw = draw; + box->set_content_size = set_content_size; + box->get_border_width = get_border_width; + + box->get_left_pad = get_left_pad; + box->get_top_pad = get_top_pad; + box->get_right_pad = get_right_pad; + box->get_bottom_pad = get_bottom_pad; + box->destroy = destroy; + return box; + +fail_and_destroy: + destroy (box); + return 0; +} |