static GdkSegment *
gimp_region_select_tool_calculate (GimpRegionSelectTool *region_sel,
GimpDisplay *display,
gint *num_segs)
{
GimpTool *tool = GIMP_TOOL (region_sel);
GimpRegionSelectOptions *options = GIMP_REGION_SELECT_TOOL_GET_OPTIONS (tool);
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
GimpDrawable *drawable;
GdkSegment *segs;
BoundSeg *bsegs;
PixelRegion maskPR;
drawable = gimp_image_get_active_drawable (display->image);
gimp_display_shell_set_override_cursor (shell, GDK_WATCH);
if (region_sel->region_mask)
g_object_unref (region_sel->region_mask);
region_sel->region_mask =
GIMP_REGION_SELECT_TOOL_GET_CLASS (region_sel)->get_mask (region_sel,
display);
if (! region_sel->region_mask)
{
gimp_display_shell_unset_override_cursor (shell);
*num_segs = 0;
return NULL;
}
/* calculate and allocate a new segment array which represents the
* boundary of the contiguous region
*/
pixel_region_init (&maskPR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (region_sel->region_mask)),
0, 0,
gimp_item_width (GIMP_ITEM (region_sel->region_mask)),
gimp_item_height (GIMP_ITEM (region_sel->region_mask)),
FALSE);
bsegs = boundary_find (&maskPR, BOUNDARY_WITHIN_BOUNDS,
0, 0,
gimp_item_width (GIMP_ITEM (region_sel->region_mask)),
gimp_item_height (GIMP_ITEM (region_sel->region_mask)),
BOUNDARY_HALF_WAY,
num_segs);
segs = g_new (GdkSegment, *num_segs);
gimp_display_shell_transform_segments (shell, bsegs, segs, *num_segs,
! options->sample_merged);
g_free (bsegs);
gimp_display_shell_unset_override_cursor (shell);
return segs;
}
static BoundSeg *
gimp_region_select_tool_calculate (GimpRegionSelectTool *region_sel,
GimpDisplay *display,
gint *n_segs)
{
GimpDisplayShell *shell = gimp_display_get_shell (display);
BoundSeg *segs;
PixelRegion maskPR;
gimp_display_shell_set_override_cursor (shell, GDK_WATCH);
if (region_sel->region_mask)
g_object_unref (region_sel->region_mask);
region_sel->region_mask =
GIMP_REGION_SELECT_TOOL_GET_CLASS (region_sel)->get_mask (region_sel,
display);
if (! region_sel->region_mask)
{
gimp_display_shell_unset_override_cursor (shell);
*n_segs = 0;
return NULL;
}
/* calculate and allocate a new segment array which represents the
* boundary of the contiguous region
*/
pixel_region_init (&maskPR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (region_sel->region_mask)),
0, 0,
gimp_item_get_width (GIMP_ITEM (region_sel->region_mask)),
gimp_item_get_height (GIMP_ITEM (region_sel->region_mask)),
FALSE);
segs = boundary_find (&maskPR, BOUNDARY_WITHIN_BOUNDS,
0, 0,
gimp_item_get_width (GIMP_ITEM (region_sel->region_mask)),
gimp_item_get_height (GIMP_ITEM (region_sel->region_mask)),
BOUNDARY_HALF_WAY,
n_segs);
gimp_display_shell_unset_override_cursor (shell);
return segs;
}
static void
gimp_region_select_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpRegionSelectTool *region_sel = GIMP_REGION_SELECT_TOOL (tool);
GimpSelectionOptions *sel_options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
GimpRegionSelectOptions *options = GIMP_REGION_SELECT_TOOL_GET_OPTIONS (tool);
gimp_tool_pop_status (tool, display);
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
gimp_tool_control_halt (tool->control);
if (release_type != GIMP_BUTTON_RELEASE_CANCEL)
{
gint off_x, off_y;
if (GIMP_SELECTION_TOOL (tool)->function == SELECTION_ANCHOR)
{
if (gimp_image_floating_sel (display->image))
{
/* If there is a floating selection, anchor it */
floating_sel_anchor (gimp_image_floating_sel (display->image));
}
else
{
/* Otherwise, clear the selection mask */
gimp_channel_clear (gimp_image_get_mask (display->image), NULL,
TRUE);
}
gimp_image_flush (display->image);
}
else if (region_sel->region_mask)
{
if (options->sample_merged)
{
off_x = 0;
off_y = 0;
}
else
{
GimpDrawable *drawable;
drawable = gimp_image_get_active_drawable (display->image);
gimp_item_offsets (GIMP_ITEM (drawable), &off_x, &off_y);
}
gimp_channel_select_channel (gimp_image_get_mask (display->image),
GIMP_REGION_SELECT_TOOL_GET_CLASS (tool)->undo_desc,
region_sel->region_mask,
off_x,
off_y,
sel_options->operation,
sel_options->feather,
sel_options->feather_radius,
sel_options->feather_radius);
gimp_image_flush (display->image);
}
}
if (region_sel->region_mask)
{
g_object_unref (region_sel->region_mask);
region_sel->region_mask = NULL;
}
if (region_sel->segs)
{
g_free (region_sel->segs);
region_sel->segs = NULL;
region_sel->num_segs = 0;
}
/* Restore the original threshold */
g_object_set (options,
"threshold", region_sel->saved_threshold,
NULL);
}
