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Diffstat (limited to '')
| -rw-r--r-- | app/display/gimpcanvasprogress.c | 459 |
1 files changed, 459 insertions, 0 deletions
diff --git a/app/display/gimpcanvasprogress.c b/app/display/gimpcanvasprogress.c new file mode 100644 index 0000000..4def1ac --- /dev/null +++ b/app/display/gimpcanvasprogress.c @@ -0,0 +1,459 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimpcanvasprogress.c + * Copyright (C) 2010 Michael Natterer <mitch@gimp.org> + * + * This program 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. + * + * This program 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 this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpbase/gimpbase.h" +#include "libgimpmath/gimpmath.h" + +#include "display-types.h" + +#include "core/gimpprogress.h" + +#include "gimpcanvas.h" +#include "gimpcanvas-style.h" +#include "gimpcanvasitem-utils.h" +#include "gimpcanvasprogress.h" +#include "gimpdisplayshell.h" + + +#define BORDER 5 +#define RADIUS 20 + +#define MIN_UPDATE_INTERVAL 50000 /* microseconds */ + + +enum +{ + PROP_0, + PROP_ANCHOR, + PROP_X, + PROP_Y +}; + + +typedef struct _GimpCanvasProgressPrivate GimpCanvasProgressPrivate; + +struct _GimpCanvasProgressPrivate +{ + GimpHandleAnchor anchor; + gdouble x; + gdouble y; + + gchar *text; + gdouble value; + + guint64 last_update_time; +}; + +#define GET_PRIVATE(progress) \ + ((GimpCanvasProgressPrivate *) gimp_canvas_progress_get_instance_private ((GimpCanvasProgress *) (progress))) + + +/* local function prototypes */ + +static void gimp_canvas_progress_iface_init (GimpProgressInterface *iface); + +static void gimp_canvas_progress_finalize (GObject *object); +static void gimp_canvas_progress_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); +static void gimp_canvas_progress_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); +static void gimp_canvas_progress_draw (GimpCanvasItem *item, + cairo_t *cr); +static cairo_region_t * gimp_canvas_progress_get_extents (GimpCanvasItem *item); +static gboolean gimp_canvas_progress_hit (GimpCanvasItem *item, + gdouble x, + gdouble y); + +static GimpProgress * gimp_canvas_progress_start (GimpProgress *progress, + gboolean cancellable, + const gchar *message); +static void gimp_canvas_progress_end (GimpProgress *progress); +static gboolean gimp_canvas_progress_is_active (GimpProgress *progress); +static void gimp_canvas_progress_set_text (GimpProgress *progress, + const gchar *message); +static void gimp_canvas_progress_set_value (GimpProgress *progress, + gdouble percentage); +static gdouble gimp_canvas_progress_get_value (GimpProgress *progress); +static void gimp_canvas_progress_pulse (GimpProgress *progress); +static gboolean gimp_canvas_progress_message (GimpProgress *progress, + Gimp *gimp, + GimpMessageSeverity severity, + const gchar *domain, + const gchar *message); + + +G_DEFINE_TYPE_WITH_CODE (GimpCanvasProgress, gimp_canvas_progress, + GIMP_TYPE_CANVAS_ITEM, + G_ADD_PRIVATE (GimpCanvasProgress) + G_IMPLEMENT_INTERFACE (GIMP_TYPE_PROGRESS, + gimp_canvas_progress_iface_init)) + +#define parent_class gimp_canvas_progress_parent_class + + +static void +gimp_canvas_progress_class_init (GimpCanvasProgressClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GimpCanvasItemClass *item_class = GIMP_CANVAS_ITEM_CLASS (klass); + + object_class->finalize = gimp_canvas_progress_finalize; + object_class->set_property = gimp_canvas_progress_set_property; + object_class->get_property = gimp_canvas_progress_get_property; + + item_class->draw = gimp_canvas_progress_draw; + item_class->get_extents = gimp_canvas_progress_get_extents; + item_class->hit = gimp_canvas_progress_hit; + + g_object_class_install_property (object_class, PROP_ANCHOR, + g_param_spec_enum ("anchor", NULL, NULL, + GIMP_TYPE_HANDLE_ANCHOR, + GIMP_HANDLE_ANCHOR_CENTER, + GIMP_PARAM_READWRITE)); + + g_object_class_install_property (object_class, PROP_X, + g_param_spec_double ("x", NULL, NULL, + -GIMP_MAX_IMAGE_SIZE, + GIMP_MAX_IMAGE_SIZE, 0, + GIMP_PARAM_READWRITE)); + + g_object_class_install_property (object_class, PROP_Y, + g_param_spec_double ("y", NULL, NULL, + -GIMP_MAX_IMAGE_SIZE, + GIMP_MAX_IMAGE_SIZE, 0, + GIMP_PARAM_READWRITE)); +} + +static void +gimp_canvas_progress_iface_init (GimpProgressInterface *iface) +{ + iface->start = gimp_canvas_progress_start; + iface->end = gimp_canvas_progress_end; + iface->is_active = gimp_canvas_progress_is_active; + iface->set_text = gimp_canvas_progress_set_text; + iface->set_value = gimp_canvas_progress_set_value; + iface->get_value = gimp_canvas_progress_get_value; + iface->pulse = gimp_canvas_progress_pulse; + iface->message = gimp_canvas_progress_message; +} + +static void +gimp_canvas_progress_init (GimpCanvasProgress *progress) +{ +} + +static void +gimp_canvas_progress_finalize (GObject *object) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (object); + + g_clear_pointer (&private->text, g_free); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static void +gimp_canvas_progress_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (object); + + switch (property_id) + { + case PROP_ANCHOR: + private->anchor = g_value_get_enum (value); + break; + case PROP_X: + private->x = g_value_get_double (value); + break; + case PROP_Y: + private->y = g_value_get_double (value); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_canvas_progress_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (object); + + switch (property_id) + { + case PROP_ANCHOR: + g_value_set_enum (value, private->anchor); + break; + case PROP_X: + g_value_set_double (value, private->x); + break; + case PROP_Y: + g_value_set_double (value, private->y); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static PangoLayout * +gimp_canvas_progress_transform (GimpCanvasItem *item, + gdouble *x, + gdouble *y, + gint *width, + gint *height) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (item); + GtkWidget *canvas = gimp_canvas_item_get_canvas (item); + PangoLayout *layout; + + layout = gimp_canvas_get_layout (GIMP_CANVAS (canvas), "%s", + private->text); + + pango_layout_get_pixel_size (layout, width, height); + + *width = MAX (*width, 2 * RADIUS); + + *width += 2 * BORDER; + *height += 3 * BORDER + 2 * RADIUS; + + gimp_canvas_item_transform_xy_f (item, + private->x, private->y, + x, y); + + gimp_canvas_item_shift_to_north_west (private->anchor, + *x, *y, + *width, + *height, + x, y); + + *x = floor (*x); + *y = floor (*y); + + return layout; +} + +static void +gimp_canvas_progress_draw (GimpCanvasItem *item, + cairo_t *cr) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (item); + GtkWidget *canvas = gimp_canvas_item_get_canvas (item); + gdouble x, y; + gint width, height; + + gimp_canvas_progress_transform (item, &x, &y, &width, &height); + + cairo_move_to (cr, x, y); + cairo_line_to (cr, x + width, y); + cairo_line_to (cr, x + width, y + height - BORDER - 2 * RADIUS); + cairo_line_to (cr, x + 2 * BORDER + 2 * RADIUS, y + height - BORDER - 2 * RADIUS); + cairo_arc (cr, x + BORDER + RADIUS, y + height - BORDER - RADIUS, + BORDER + RADIUS, 0, G_PI); + cairo_close_path (cr); + + _gimp_canvas_item_fill (item, cr); + + cairo_move_to (cr, x + BORDER, y + BORDER); + cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0); + pango_cairo_show_layout (cr, + gimp_canvas_get_layout (GIMP_CANVAS (canvas), + "%s", private->text)); + + gimp_canvas_set_tool_bg_style (gimp_canvas_item_get_canvas (item), cr); + cairo_arc (cr, x + BORDER + RADIUS, y + height - BORDER - RADIUS, + RADIUS, - G_PI / 2.0, 2 * G_PI - G_PI / 2.0); + cairo_fill (cr); + + cairo_set_source_rgba (cr, 0.0, 1.0, 0.0, 1.0); + cairo_move_to (cr, x + BORDER + RADIUS, y + height - BORDER - RADIUS); + cairo_arc (cr, x + BORDER + RADIUS, y + height - BORDER - RADIUS, + RADIUS, - G_PI / 2.0, 2 * G_PI * private->value - G_PI / 2.0); + cairo_fill (cr); +} + +static cairo_region_t * +gimp_canvas_progress_get_extents (GimpCanvasItem *item) +{ + cairo_rectangle_int_t rectangle; + gdouble x, y; + gint width, height; + + gimp_canvas_progress_transform (item, &x, &y, &width, &height); + + /* add 1px on each side because fill()'s default impl does the same */ + rectangle.x = (gint) x - 1; + rectangle.y = (gint) y - 1; + rectangle.width = width + 2; + rectangle.height = height + 2; + + return cairo_region_create_rectangle (&rectangle); +} + +static gboolean +gimp_canvas_progress_hit (GimpCanvasItem *item, + gdouble x, + gdouble y) +{ + gdouble px, py; + gint pwidth, pheight; + gdouble tx, ty; + + gimp_canvas_progress_transform (item, &px, &py, &pwidth, &pheight); + gimp_canvas_item_transform_xy_f (item, x, y, &tx, &ty); + + pheight -= BORDER + 2 * RADIUS; + + return (tx >= px && tx < (px + pwidth) && + ty >= py && ty < (py + pheight)); +} + +static GimpProgress * +gimp_canvas_progress_start (GimpProgress *progress, + gboolean cancellable, + const gchar *message) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (progress); + + gimp_canvas_progress_set_text (progress, message); + + private->last_update_time = g_get_monotonic_time (); + + return progress; +} + +static void +gimp_canvas_progress_end (GimpProgress *progress) +{ +} + +static gboolean +gimp_canvas_progress_is_active (GimpProgress *progress) +{ + return TRUE; +} + +static void +gimp_canvas_progress_set_text (GimpProgress *progress, + const gchar *message) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (progress); + cairo_region_t *old_region; + cairo_region_t *new_region; + + old_region = gimp_canvas_item_get_extents (GIMP_CANVAS_ITEM (progress)); + + if (private->text) + g_free (private->text); + + private->text = g_strdup (message); + + new_region = gimp_canvas_item_get_extents (GIMP_CANVAS_ITEM (progress)); + + cairo_region_union (new_region, old_region); + cairo_region_destroy (old_region); + + _gimp_canvas_item_update (GIMP_CANVAS_ITEM (progress), new_region); + + cairo_region_destroy (new_region); +} + +static void +gimp_canvas_progress_set_value (GimpProgress *progress, + gdouble percentage) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (progress); + + if (percentage != private->value) + { + guint64 time = g_get_monotonic_time (); + + private->value = percentage; + + if (time - private->last_update_time >= MIN_UPDATE_INTERVAL) + { + cairo_region_t *region; + + private->last_update_time = time; + + region = gimp_canvas_item_get_extents (GIMP_CANVAS_ITEM (progress)); + + _gimp_canvas_item_update (GIMP_CANVAS_ITEM (progress), region); + + cairo_region_destroy (region); + } + } +} + +static gdouble +gimp_canvas_progress_get_value (GimpProgress *progress) +{ + GimpCanvasProgressPrivate *private = GET_PRIVATE (progress); + + return private->value; +} + +static void +gimp_canvas_progress_pulse (GimpProgress *progress) +{ +} + +static gboolean +gimp_canvas_progress_message (GimpProgress *progress, + Gimp *gimp, + GimpMessageSeverity severity, + const gchar *domain, + const gchar *message) +{ + return FALSE; +} + +GimpCanvasItem * +gimp_canvas_progress_new (GimpDisplayShell *shell, + GimpHandleAnchor anchor, + gdouble x, + gdouble y) +{ + g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL); + + return g_object_new (GIMP_TYPE_CANVAS_PROGRESS, + "shell", shell, + "anchor", anchor, + "x", x, + "y", y, + NULL); +} |