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; }