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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:13:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:13:10 +0000
commit3c57dd931145d43f2b0aef96c4d178135956bf91 (patch)
tree3de698981e9f0cc2c4f9569b19a5f3595e741f6b /app/display/gimpcanvashandle.c
parentInitial commit. (diff)
downloadgimp-3c57dd931145d43f2b0aef96c4d178135956bf91.tar.xz
gimp-3c57dd931145d43f2b0aef96c4d178135956bf91.zip
Adding upstream version 2.10.36.upstream/2.10.36
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'app/display/gimpcanvashandle.c')
-rw-r--r--app/display/gimpcanvashandle.c703
1 files changed, 703 insertions, 0 deletions
diff --git a/app/display/gimpcanvashandle.c b/app/display/gimpcanvashandle.c
new file mode 100644
index 0000000..954eead
--- /dev/null
+++ b/app/display/gimpcanvashandle.c
@@ -0,0 +1,703 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcanvashandle.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/gimp-cairo.h"
+
+#include "gimpcanvashandle.h"
+#include "gimpcanvasitem-utils.h"
+#include "gimpdisplayshell.h"
+
+
+#define N_DASHES 8
+#define DASH_ON_RATIO 0.3
+#define DASH_OFF_RATIO 0.7
+
+
+enum
+{
+ PROP_0,
+ PROP_TYPE,
+ PROP_ANCHOR,
+ PROP_X,
+ PROP_Y,
+ PROP_WIDTH,
+ PROP_HEIGHT,
+ PROP_START_ANGLE,
+ PROP_SLICE_ANGLE
+};
+
+
+typedef struct _GimpCanvasHandlePrivate GimpCanvasHandlePrivate;
+
+struct _GimpCanvasHandlePrivate
+{
+ GimpHandleType type;
+ GimpHandleAnchor anchor;
+ gdouble x;
+ gdouble y;
+ gint width;
+ gint height;
+ gdouble start_angle;
+ gdouble slice_angle;
+};
+
+#define GET_PRIVATE(handle) \
+ ((GimpCanvasHandlePrivate *) gimp_canvas_handle_get_instance_private ((GimpCanvasHandle *) (handle)))
+
+
+/* local function prototypes */
+
+static void gimp_canvas_handle_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_canvas_handle_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gimp_canvas_handle_draw (GimpCanvasItem *item,
+ cairo_t *cr);
+static cairo_region_t * gimp_canvas_handle_get_extents (GimpCanvasItem *item);
+static gboolean gimp_canvas_handle_hit (GimpCanvasItem *item,
+ gdouble x,
+ gdouble y);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasHandle, gimp_canvas_handle,
+ GIMP_TYPE_CANVAS_ITEM)
+
+#define parent_class gimp_canvas_handle_parent_class
+
+
+static void
+gimp_canvas_handle_class_init (GimpCanvasHandleClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GimpCanvasItemClass *item_class = GIMP_CANVAS_ITEM_CLASS (klass);
+
+ object_class->set_property = gimp_canvas_handle_set_property;
+ object_class->get_property = gimp_canvas_handle_get_property;
+
+ item_class->draw = gimp_canvas_handle_draw;
+ item_class->get_extents = gimp_canvas_handle_get_extents;
+ item_class->hit = gimp_canvas_handle_hit;
+
+ g_object_class_install_property (object_class, PROP_TYPE,
+ g_param_spec_enum ("type", NULL, NULL,
+ GIMP_TYPE_HANDLE_TYPE,
+ GIMP_HANDLE_CROSS,
+ 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_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_int ("width", NULL, NULL,
+ 3, 1001, 7,
+ GIMP_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_HEIGHT,
+ g_param_spec_int ("height", NULL, NULL,
+ 3, 1001, 7,
+ GIMP_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_START_ANGLE,
+ g_param_spec_double ("start-angle", NULL, NULL,
+ -1000, 1000, 0,
+ GIMP_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_SLICE_ANGLE,
+ g_param_spec_double ("slice-angle", NULL, NULL,
+ -1000, 1000, 2 * G_PI,
+ GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_canvas_handle_init (GimpCanvasHandle *handle)
+{
+ GimpCanvasHandlePrivate *private = GET_PRIVATE (handle);
+
+ gimp_canvas_item_set_line_cap (GIMP_CANVAS_ITEM (handle),
+ CAIRO_LINE_CAP_SQUARE);
+
+ private->start_angle = 0.0;
+ private->slice_angle = 2.0 * G_PI;
+}
+
+static void
+gimp_canvas_handle_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpCanvasHandlePrivate *private = GET_PRIVATE (object);
+
+ switch (property_id)
+ {
+ case PROP_TYPE:
+ private->type = g_value_get_enum (value);
+ break;
+ 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;
+ case PROP_WIDTH:
+ private->width = g_value_get_int (value);
+ break;
+ case PROP_HEIGHT:
+ private->height = g_value_get_int (value);
+ break;
+ case PROP_START_ANGLE:
+ private->start_angle = g_value_get_double (value);
+ break;
+ case PROP_SLICE_ANGLE:
+ private->slice_angle = g_value_get_double (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_canvas_handle_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpCanvasHandlePrivate *private = GET_PRIVATE (object);
+
+ switch (property_id)
+ {
+ case PROP_TYPE:
+ g_value_set_enum (value, private->type);
+ break;
+ 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;
+ case PROP_WIDTH:
+ g_value_set_int (value, private->width);
+ break;
+ case PROP_HEIGHT:
+ g_value_set_int (value, private->height);
+ break;
+ case PROP_START_ANGLE:
+ g_value_set_double (value, private->start_angle);
+ break;
+ case PROP_SLICE_ANGLE:
+ g_value_set_double (value, private->slice_angle);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_canvas_handle_transform (GimpCanvasItem *item,
+ gdouble *x,
+ gdouble *y)
+{
+ GimpCanvasHandlePrivate *private = GET_PRIVATE (item);
+
+ gimp_canvas_item_transform_xy_f (item,
+ private->x, private->y,
+ x, y);
+
+ switch (private->type)
+ {
+ case GIMP_HANDLE_SQUARE:
+ case GIMP_HANDLE_DASHED_SQUARE:
+ case GIMP_HANDLE_FILLED_SQUARE:
+ gimp_canvas_item_shift_to_north_west (private->anchor,
+ *x, *y,
+ private->width,
+ private->height,
+ x, y);
+ break;
+
+ case GIMP_HANDLE_CIRCLE:
+ case GIMP_HANDLE_DASHED_CIRCLE:
+ case GIMP_HANDLE_FILLED_CIRCLE:
+ case GIMP_HANDLE_CROSS:
+ case GIMP_HANDLE_CROSSHAIR:
+ case GIMP_HANDLE_DIAMOND:
+ case GIMP_HANDLE_DASHED_DIAMOND:
+ case GIMP_HANDLE_FILLED_DIAMOND:
+ gimp_canvas_item_shift_to_center (private->anchor,
+ *x, *y,
+ private->width,
+ private->height,
+ x, y);
+ break;
+
+ default:
+ break;
+ }
+
+ *x = floor (*x) + 0.5;
+ *y = floor (*y) + 0.5;
+}
+
+static void
+gimp_canvas_handle_draw (GimpCanvasItem *item,
+ cairo_t *cr)
+{
+ GimpCanvasHandlePrivate *private = GET_PRIVATE (item);
+ gdouble x, y, tx, ty;
+
+ gimp_canvas_handle_transform (item, &x, &y);
+
+ gimp_canvas_item_transform_xy_f (item,
+ private->x, private->y,
+ &tx, &ty);
+
+ tx = floor (tx) + 0.5;
+ ty = floor (ty) + 0.5;
+
+ switch (private->type)
+ {
+ case GIMP_HANDLE_SQUARE:
+ case GIMP_HANDLE_DASHED_SQUARE:
+ case GIMP_HANDLE_FILLED_SQUARE:
+ case GIMP_HANDLE_DIAMOND:
+ case GIMP_HANDLE_DASHED_DIAMOND:
+ case GIMP_HANDLE_FILLED_DIAMOND:
+ case GIMP_HANDLE_CROSS:
+ cairo_save (cr);
+ cairo_translate (cr, tx, ty);
+ cairo_rotate (cr, private->start_angle);
+ cairo_translate (cr, -tx, -ty);
+
+ switch (private->type)
+ {
+ case GIMP_HANDLE_SQUARE:
+ case GIMP_HANDLE_DASHED_SQUARE:
+ if (private->type == GIMP_HANDLE_DASHED_SQUARE)
+ {
+ gdouble circ;
+ gdouble dashes[2];
+
+ cairo_save (cr);
+
+ circ = 2.0 * ((private->width - 1.0) + (private->height - 1.0));
+
+ dashes[0] = (circ / N_DASHES) * DASH_ON_RATIO;
+ dashes[1] = (circ / N_DASHES) * DASH_OFF_RATIO;
+
+ cairo_set_dash (cr, dashes, 2, dashes[0] / 2.0);
+ }
+
+ cairo_rectangle (cr, x, y, private->width - 1.0, private->height - 1.0);
+ _gimp_canvas_item_stroke (item, cr);
+
+ if (private->type == GIMP_HANDLE_DASHED_SQUARE)
+ cairo_restore (cr);
+ break;
+
+ case GIMP_HANDLE_FILLED_SQUARE:
+ cairo_rectangle (cr, x - 0.5, y - 0.5, private->width, private->height);
+ _gimp_canvas_item_fill (item, cr);
+ break;
+
+ case GIMP_HANDLE_DIAMOND:
+ case GIMP_HANDLE_DASHED_DIAMOND:
+ case GIMP_HANDLE_FILLED_DIAMOND:
+ if (private->type == GIMP_HANDLE_DASHED_DIAMOND)
+ {
+ gdouble circ;
+ gdouble dashes[2];
+
+ cairo_save (cr);
+
+ circ = 4.0 * hypot ((gdouble) private->width / 2.0,
+ (gdouble) private->height / 2.0);
+
+ dashes[0] = (circ / N_DASHES) * DASH_ON_RATIO;
+ dashes[1] = (circ / N_DASHES) * DASH_OFF_RATIO;
+
+ cairo_set_dash (cr, dashes, 2, dashes[0] / 2.0);
+ }
+
+ cairo_move_to (cr, x, y - (gdouble) private->height / 2.0);
+ cairo_line_to (cr, x + (gdouble) private->width / 2.0, y);
+ cairo_line_to (cr, x, y + (gdouble) private->height / 2.0);
+ cairo_line_to (cr, x - (gdouble) private->width / 2.0, y);
+ cairo_line_to (cr, x, y - (gdouble) private->height / 2.0);
+ if (private->type == GIMP_HANDLE_DIAMOND ||
+ private->type == GIMP_HANDLE_DASHED_DIAMOND)
+ _gimp_canvas_item_stroke (item, cr);
+ else
+ _gimp_canvas_item_fill (item, cr);
+
+ if (private->type == GIMP_HANDLE_DASHED_SQUARE)
+ cairo_restore (cr);
+ break;
+
+ case GIMP_HANDLE_CROSS:
+ cairo_move_to (cr, x - private->width / 2.0, y);
+ cairo_line_to (cr, x + private->width / 2.0 - 0.5, y);
+ cairo_move_to (cr, x, y - private->height / 2.0);
+ cairo_line_to (cr, x, y + private->height / 2.0 - 0.5);
+ _gimp_canvas_item_stroke (item, cr);
+ break;
+
+ default:
+ gimp_assert_not_reached ();
+ }
+
+ cairo_restore (cr);
+ break;
+
+ case GIMP_HANDLE_CIRCLE:
+ case GIMP_HANDLE_DASHED_CIRCLE:
+ if (private->type == GIMP_HANDLE_DASHED_CIRCLE)
+ {
+ gdouble circ;
+ gdouble dashes[2];
+
+ cairo_save (cr);
+
+ circ = 2.0 * G_PI * (private->width / 2.0);
+
+ dashes[0] = (circ / N_DASHES) * DASH_ON_RATIO;
+ dashes[1] = (circ / N_DASHES) * DASH_OFF_RATIO;
+
+ cairo_set_dash (cr, dashes, 2, dashes[0] / 2.0);
+ }
+
+ gimp_cairo_arc (cr, x, y, private->width / 2.0,
+ private->start_angle,
+ private->slice_angle);
+
+ _gimp_canvas_item_stroke (item, cr);
+
+ if (private->type == GIMP_HANDLE_DASHED_CIRCLE)
+ cairo_restore (cr);
+ break;
+
+ case GIMP_HANDLE_FILLED_CIRCLE:
+ cairo_move_to (cr, x, y);
+
+ gimp_cairo_arc (cr, x, y, (gdouble) private->width / 2.0,
+ private->start_angle,
+ private->slice_angle);
+
+ _gimp_canvas_item_fill (item, cr);
+ break;
+
+ case GIMP_HANDLE_CROSSHAIR:
+ cairo_move_to (cr, x - private->width / 2.0, y);
+ cairo_line_to (cr, x - private->width * 0.4, y);
+
+ cairo_move_to (cr, x + private->width / 2.0 - 0.5, y);
+ cairo_line_to (cr, x + private->width * 0.4, y);
+
+ cairo_move_to (cr, x, y - private->height / 2.0);
+ cairo_line_to (cr, x, y - private->height * 0.4 - 0.5);
+
+ cairo_move_to (cr, x, y + private->height / 2.0 - 0.5);
+ cairo_line_to (cr, x, y + private->height * 0.4 - 0.5);
+
+ _gimp_canvas_item_stroke (item, cr);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static cairo_region_t *
+gimp_canvas_handle_get_extents (GimpCanvasItem *item)
+{
+ GimpCanvasHandlePrivate *private = GET_PRIVATE (item);
+ cairo_rectangle_int_t rectangle;
+ gdouble x, y;
+ gdouble w, h;
+
+ gimp_canvas_handle_transform (item, &x, &y);
+
+ switch (private->type)
+ {
+ case GIMP_HANDLE_SQUARE:
+ case GIMP_HANDLE_DASHED_SQUARE:
+ case GIMP_HANDLE_FILLED_SQUARE:
+ w = private->width * (sqrt(2) - 1) / 2;
+ h = private->height * (sqrt(2) - 1) / 2;
+ rectangle.x = x - 1.5 - w;
+ rectangle.y = y - 1.5 - h;
+ rectangle.width = private->width + 3.0 + w * 2;
+ rectangle.height = private->height + 3.0 + h * 2;
+ break;
+
+ case GIMP_HANDLE_CIRCLE:
+ case GIMP_HANDLE_DASHED_CIRCLE:
+ case GIMP_HANDLE_FILLED_CIRCLE:
+ case GIMP_HANDLE_CROSS:
+ case GIMP_HANDLE_CROSSHAIR:
+ case GIMP_HANDLE_DIAMOND:
+ case GIMP_HANDLE_DASHED_DIAMOND:
+ case GIMP_HANDLE_FILLED_DIAMOND:
+ rectangle.x = x - private->width / 2.0 - 2.0;
+ rectangle.y = y - private->height / 2.0 - 2.0;
+ rectangle.width = private->width + 4.0;
+ rectangle.height = private->height + 4.0;
+ break;
+
+ default:
+ break;
+ }
+
+ return cairo_region_create_rectangle (&rectangle);
+}
+
+static gboolean
+gimp_canvas_handle_hit (GimpCanvasItem *item,
+ gdouble x,
+ gdouble y)
+{
+ GimpCanvasHandlePrivate *private = GET_PRIVATE (item);
+ gdouble handle_tx, handle_ty;
+ gdouble mx, my, tx, ty, mmx, mmy;
+ gdouble diamond_offset_x = 0.0;
+ gdouble diamond_offset_y = 0.0;
+ gdouble angle = -private->start_angle;
+
+ gimp_canvas_handle_transform (item, &handle_tx, &handle_ty);
+
+ gimp_canvas_item_transform_xy_f (item,
+ x, y,
+ &mx, &my);
+
+ switch (private->type)
+ {
+ case GIMP_HANDLE_DIAMOND:
+ case GIMP_HANDLE_DASHED_DIAMOND:
+ case GIMP_HANDLE_FILLED_DIAMOND:
+ angle -= G_PI / 4.0;
+ diamond_offset_x = private->width / 2.0;
+ diamond_offset_y = private->height / 2.0;
+ case GIMP_HANDLE_SQUARE:
+ case GIMP_HANDLE_DASHED_SQUARE:
+ case GIMP_HANDLE_FILLED_SQUARE:
+ gimp_canvas_item_transform_xy_f (item,
+ private->x, private->y,
+ &tx, &ty);
+ mmx = mx - tx; mmy = my - ty;
+ mx = cos (angle) * mmx - sin (angle) * mmy + tx + diamond_offset_x;
+ my = sin (angle) * mmx + cos (angle) * mmy + ty + diamond_offset_y;
+ return mx > handle_tx && mx < handle_tx + private->width &&
+ my > handle_ty && my < handle_ty + private->height;
+
+ case GIMP_HANDLE_CIRCLE:
+ case GIMP_HANDLE_DASHED_CIRCLE:
+ case GIMP_HANDLE_FILLED_CIRCLE:
+ case GIMP_HANDLE_CROSS:
+ case GIMP_HANDLE_CROSSHAIR:
+ {
+ gint width = private->width;
+
+ if (width != private->height)
+ width = (width + private->height) / 2;
+
+ width /= 2;
+
+ return ((SQR (handle_tx - mx) + SQR (handle_ty - my)) < SQR (width));
+ }
+
+ default:
+ break;
+ }
+
+ return FALSE;
+}
+
+GimpCanvasItem *
+gimp_canvas_handle_new (GimpDisplayShell *shell,
+ GimpHandleType type,
+ GimpHandleAnchor anchor,
+ gdouble x,
+ gdouble y,
+ gint width,
+ gint height)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+ return g_object_new (GIMP_TYPE_CANVAS_HANDLE,
+ "shell", shell,
+ "type", type,
+ "anchor", anchor,
+ "x", x,
+ "y", y,
+ "width", width,
+ "height", height,
+ NULL);
+}
+
+void
+gimp_canvas_handle_get_position (GimpCanvasItem *handle,
+ gdouble *x,
+ gdouble *y)
+{
+ g_return_if_fail (GIMP_IS_CANVAS_HANDLE (handle));
+ g_return_if_fail (x != NULL);
+ g_return_if_fail (y != NULL);
+
+ g_object_get (handle,
+ "x", x,
+ "y", y,
+ NULL);
+}
+
+void
+gimp_canvas_handle_set_position (GimpCanvasItem *handle,
+ gdouble x,
+ gdouble y)
+{
+ g_return_if_fail (GIMP_IS_CANVAS_HANDLE (handle));
+
+ gimp_canvas_item_begin_change (handle);
+
+ g_object_set (handle,
+ "x", x,
+ "y", y,
+ NULL);
+
+ gimp_canvas_item_end_change (handle);
+}
+
+gint
+gimp_canvas_handle_calc_size (GimpCanvasItem *item,
+ gdouble mouse_x,
+ gdouble mouse_y,
+ gint normal_size,
+ gint hover_size)
+{
+ gdouble x, y;
+ gdouble distance;
+ gdouble size;
+ gint full_threshold_sq = SQR (hover_size / 2) * 9;
+ gint partial_threshold_sq = full_threshold_sq * 5;
+
+ g_return_val_if_fail (GIMP_IS_CANVAS_HANDLE (item), normal_size);
+
+ gimp_canvas_handle_get_position (item, &x, &y);
+ distance = gimp_canvas_item_transform_distance_square (item,
+ mouse_x,
+ mouse_y,
+ x, y);
+
+ /* calculate the handle size based on distance from the cursor */
+ size = (1.0 - (distance - full_threshold_sq) /
+ (partial_threshold_sq - full_threshold_sq));
+
+ size = CLAMP (size, 0.0, 1.0);
+
+ return (gint) CLAMP ((size * hover_size),
+ normal_size,
+ hover_size);
+}
+
+void
+gimp_canvas_handle_get_size (GimpCanvasItem *handle,
+ gint *width,
+ gint *height)
+{
+ g_return_if_fail (GIMP_IS_CANVAS_HANDLE (handle));
+ g_return_if_fail (width != NULL);
+ g_return_if_fail (height != NULL);
+
+ g_object_get (handle,
+ "width", width,
+ "height", height,
+ NULL);
+}
+
+void
+gimp_canvas_handle_set_size (GimpCanvasItem *handle,
+ gint width,
+ gint height)
+{
+ g_return_if_fail (GIMP_IS_CANVAS_HANDLE (handle));
+
+ gimp_canvas_item_begin_change (handle);
+
+ g_object_set (handle,
+ "width", width,
+ "height", height,
+ NULL);
+
+ gimp_canvas_item_end_change (handle);
+}
+
+void
+gimp_canvas_handle_set_angles (GimpCanvasItem *handle,
+ gdouble start_angle,
+ gdouble slice_angle)
+{
+ g_return_if_fail (GIMP_IS_CANVAS_HANDLE (handle));
+
+ gimp_canvas_item_begin_change (handle);
+
+ g_object_set (handle,
+ "start-angle", start_angle,
+ "slice-angle", slice_angle,
+ NULL);
+
+ gimp_canvas_item_end_change (handle);
+}