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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
commit | 5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch) | |
tree | cbffb45144febf451e54061db2b21395faf94bfe /app/display/gimpcanvascorner.c | |
parent | Initial commit. (diff) | |
download | gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip |
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | app/display/gimpcanvascorner.c | 468 |
1 files changed, 468 insertions, 0 deletions
diff --git a/app/display/gimpcanvascorner.c b/app/display/gimpcanvascorner.c new file mode 100644 index 0000000..50aebfb --- /dev/null +++ b/app/display/gimpcanvascorner.c @@ -0,0 +1,468 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimpcanvascorner.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 "gimpcanvascorner.h" +#include "gimpdisplayshell.h" + + +enum +{ + PROP_0, + PROP_X, + PROP_Y, + PROP_WIDTH, + PROP_HEIGHT, + PROP_ANCHOR, + PROP_CORNER_WIDTH, + PROP_CORNER_HEIGHT, + PROP_OUTSIDE +}; + + +typedef struct _GimpCanvasCornerPrivate GimpCanvasCornerPrivate; + +struct _GimpCanvasCornerPrivate +{ + gdouble x; + gdouble y; + gdouble width; + gdouble height; + GimpHandleAnchor anchor; + gint corner_width; + gint corner_height; + gboolean outside; +}; + +#define GET_PRIVATE(corner) \ + ((GimpCanvasCornerPrivate *) gimp_canvas_corner_get_instance_private ((GimpCanvasCorner *) (corner))) + + +/* local function prototypes */ + +static void gimp_canvas_corner_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); +static void gimp_canvas_corner_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); +static void gimp_canvas_corner_draw (GimpCanvasItem *item, + cairo_t *cr); +static cairo_region_t * gimp_canvas_corner_get_extents (GimpCanvasItem *item); + + +G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasCorner, gimp_canvas_corner, + GIMP_TYPE_CANVAS_ITEM) + +#define parent_class gimp_canvas_corner_parent_class + + +static void +gimp_canvas_corner_class_init (GimpCanvasCornerClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GimpCanvasItemClass *item_class = GIMP_CANVAS_ITEM_CLASS (klass); + + object_class->set_property = gimp_canvas_corner_set_property; + object_class->get_property = gimp_canvas_corner_get_property; + + item_class->draw = gimp_canvas_corner_draw; + item_class->get_extents = gimp_canvas_corner_get_extents; + + 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)); + + g_object_class_install_property (object_class, PROP_WIDTH, + g_param_spec_double ("width", NULL, NULL, + -GIMP_MAX_IMAGE_SIZE, + GIMP_MAX_IMAGE_SIZE, 0, + GIMP_PARAM_READWRITE)); + + g_object_class_install_property (object_class, PROP_HEIGHT, + g_param_spec_double ("height", NULL, NULL, + -GIMP_MAX_IMAGE_SIZE, + GIMP_MAX_IMAGE_SIZE, 0, + GIMP_PARAM_READWRITE)); + + 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_CORNER_WIDTH, + g_param_spec_int ("corner-width", NULL, NULL, + 3, GIMP_MAX_IMAGE_SIZE, 3, + GIMP_PARAM_READWRITE)); + + g_object_class_install_property (object_class, PROP_CORNER_HEIGHT, + g_param_spec_int ("corner-height", NULL, NULL, + 3, GIMP_MAX_IMAGE_SIZE, 3, + GIMP_PARAM_READWRITE)); + + g_object_class_install_property (object_class, PROP_OUTSIDE, + g_param_spec_boolean ("outside", NULL, NULL, + FALSE, + GIMP_PARAM_READWRITE)); +} + +static void +gimp_canvas_corner_init (GimpCanvasCorner *corner) +{ +} + +static void +gimp_canvas_corner_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpCanvasCornerPrivate *private = GET_PRIVATE (object); + + switch (property_id) + { + case PROP_X: + private->x = g_value_get_double (value); + break; + case PROP_Y: + private->y = g_value_get_double (value); + break; + case PROP_WIDTH: + private->width = g_value_get_double (value); + break; + case PROP_HEIGHT: + private->height = g_value_get_double (value); + break; + case PROP_ANCHOR: + private->anchor = g_value_get_enum (value); + break; + case PROP_CORNER_WIDTH: + private->corner_width = g_value_get_int (value); + break; + case PROP_CORNER_HEIGHT: + private->corner_height = g_value_get_int (value); + break; + case PROP_OUTSIDE: + private->outside = g_value_get_boolean (value); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_canvas_corner_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpCanvasCornerPrivate *private = GET_PRIVATE (object); + + switch (property_id) + { + case PROP_X: + g_value_set_double (value, private->x); + break; + case PROP_Y: + g_value_set_double (value, private->y); + break; + case PROP_WIDTH: + g_value_set_double (value, private->width); + break; + case PROP_HEIGHT: + g_value_set_double (value, private->height); + break; + case PROP_ANCHOR: + g_value_set_enum (value, private->anchor); + break; + case PROP_CORNER_WIDTH: + g_value_set_int (value, private->corner_width); + break; + case PROP_CORNER_HEIGHT: + g_value_set_int (value, private->corner_height); + break; + case PROP_OUTSIDE: + g_value_set_boolean (value, private->outside); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_canvas_corner_transform (GimpCanvasItem *item, + gdouble *x, + gdouble *y, + gdouble *w, + gdouble *h) +{ + GimpCanvasCornerPrivate *private = GET_PRIVATE (item); + gdouble rx, ry; + gdouble rw, rh; + gint top_and_bottom_handle_x_offset; + gint left_and_right_handle_y_offset; + + gimp_canvas_item_transform_xy_f (item, + MIN (private->x, + private->x + private->width), + MIN (private->y, + private->y + private->height), + &rx, &ry); + gimp_canvas_item_transform_xy_f (item, + MAX (private->x, + private->x + private->width), + MAX (private->y, + private->y + private->height), + &rw, &rh); + + rw -= rx; + rh -= ry; + + rx = floor (rx) + 0.5; + ry = floor (ry) + 0.5; + rw = ceil (rw) - 1.0; + rh = ceil (rh) - 1.0; + + top_and_bottom_handle_x_offset = (rw - private->corner_width) / 2; + left_and_right_handle_y_offset = (rh - private->corner_height) / 2; + + *w = private->corner_width; + *h = private->corner_height; + + switch (private->anchor) + { + case GIMP_HANDLE_ANCHOR_CENTER: + break; + + case GIMP_HANDLE_ANCHOR_NORTH_WEST: + if (private->outside) + { + *x = rx - private->corner_width; + *y = ry - private->corner_height; + } + else + { + *x = rx; + *y = ry; + } + break; + + case GIMP_HANDLE_ANCHOR_NORTH_EAST: + if (private->outside) + { + *x = rx + rw; + *y = ry - private->corner_height; + } + else + { + *x = rx + rw - private->corner_width; + *y = ry; + } + break; + + case GIMP_HANDLE_ANCHOR_SOUTH_WEST: + if (private->outside) + { + *x = rx - private->corner_width; + *y = ry + rh; + } + else + { + *x = rx; + *y = ry + rh - private->corner_height; + } + break; + + case GIMP_HANDLE_ANCHOR_SOUTH_EAST: + if (private->outside) + { + *x = rx + rw; + *y = ry + rh; + } + else + { + *x = rx + rw - private->corner_width; + *y = ry + rh - private->corner_height; + } + break; + + case GIMP_HANDLE_ANCHOR_NORTH: + if (private->outside) + { + *x = rx; + *y = ry - private->corner_height; + *w = rw; + } + else + { + *x = rx + top_and_bottom_handle_x_offset; + *y = ry; + } + break; + + case GIMP_HANDLE_ANCHOR_SOUTH: + if (private->outside) + { + *x = rx; + *y = ry + rh; + *w = rw; + } + else + { + *x = rx + top_and_bottom_handle_x_offset; + *y = ry + rh - private->corner_height; + } + break; + + case GIMP_HANDLE_ANCHOR_WEST: + if (private->outside) + { + *x = rx - private->corner_width; + *y = ry; + *h = rh; + } + else + { + *x = rx; + *y = ry + left_and_right_handle_y_offset; + } + break; + + case GIMP_HANDLE_ANCHOR_EAST: + if (private->outside) + { + *x = rx + rw; + *y = ry; + *h = rh; + } + else + { + *x = rx + rw - private->corner_width; + *y = ry + left_and_right_handle_y_offset; + } + break; + } +} + +static void +gimp_canvas_corner_draw (GimpCanvasItem *item, + cairo_t *cr) +{ + gdouble x, y; + gdouble w, h; + + gimp_canvas_corner_transform (item, &x, &y, &w, &h); + + cairo_rectangle (cr, x, y, w, h); + + _gimp_canvas_item_stroke (item, cr); +} + +static cairo_region_t * +gimp_canvas_corner_get_extents (GimpCanvasItem *item) +{ + cairo_rectangle_int_t rectangle; + gdouble x, y; + gdouble w, h; + + gimp_canvas_corner_transform (item, &x, &y, &w, &h); + + rectangle.x = floor (x - 1.5); + rectangle.y = floor (y - 1.5); + rectangle.width = ceil (w + 3.0); + rectangle.height = ceil (h + 3.0); + + return cairo_region_create_rectangle (&rectangle); +} + +GimpCanvasItem * +gimp_canvas_corner_new (GimpDisplayShell *shell, + gdouble x, + gdouble y, + gdouble width, + gdouble height, + GimpHandleAnchor anchor, + gint corner_width, + gint corner_height, + gboolean outside) +{ + g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL); + + return g_object_new (GIMP_TYPE_CANVAS_CORNER, + "shell", shell, + "x", x, + "y", y, + "width", width, + "height", height, + "anchor", anchor, + "corner-width", corner_width, + "corner-height", corner_height, + "outside", outside, + NULL); +} + +void +gimp_canvas_corner_set (GimpCanvasItem *corner, + gdouble x, + gdouble y, + gdouble width, + gdouble height, + gint corner_width, + gint corner_height, + gboolean outside) +{ + g_return_if_fail (GIMP_IS_CANVAS_CORNER (corner)); + + gimp_canvas_item_begin_change (corner); + g_object_set (corner, + "x", x, + "y", y, + "width", width, + "height", height, + "corner-width", corner_width, + "corner-height", corner_height, + "outside", outside, + NULL); + gimp_canvas_item_end_change (corner); +} |