Adding upstream version 2.10.36.upstream/2.10.36

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 386 insertions, 0 deletions

diff --git a/app/tools/gimpregionselecttool.c b/app/tools/gimpregionselecttool.c
new file mode 100644
index 0000000..fe08533
--- /dev/null
+++ b/app/tools/gimpregionselecttool.c
@@ -0,0 +1,386 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpregionselecttool.c
+ *
+ * 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 "libgimpwidgets/gimpwidgets.h"
+
+#include "tools-types.h"
+
+#include "core/gimp-utils.h"
+#include "core/gimpboundary.h"
+#include "core/gimpchannel.h"
+#include "core/gimpchannel-select.h"
+#include "core/gimpimage.h"
+#include "core/gimplayer-floating-selection.h"
+
+#include "display/gimpdisplay.h"
+#include "display/gimpdisplayshell.h"
+#include "display/gimpdisplayshell-cursor.h"
+
+#include "gimpregionselectoptions.h"
+#include "gimpregionselecttool.h"
+#include "gimptoolcontrol.h"
+
+#include "gimp-intl.h"
+
+
+static void   gimp_region_select_tool_finalize       (GObject               *object);
+
+static void   gimp_region_select_tool_button_press   (GimpTool              *tool,
+                                                      const GimpCoords      *coords,
+                                                      guint32                time,
+                                                      GdkModifierType        state,
+                                                      GimpButtonPressType    press_type,
+                                                      GimpDisplay           *display);
+static void   gimp_region_select_tool_button_release (GimpTool              *tool,
+                                                      const GimpCoords      *coords,
+                                                      guint32                time,
+                                                      GdkModifierType        state,
+                                                      GimpButtonReleaseType  release_type,
+                                                      GimpDisplay           *display);
+static void   gimp_region_select_tool_motion         (GimpTool              *tool,
+                                                      const GimpCoords      *coords,
+                                                      guint32                time,
+                                                      GdkModifierType        state,
+                                                      GimpDisplay           *display);
+static void   gimp_region_select_tool_cursor_update  (GimpTool              *tool,
+                                                      const GimpCoords      *coords,
+                                                      GdkModifierType        state,
+                                                      GimpDisplay           *display);
+
+static void   gimp_region_select_tool_draw           (GimpDrawTool          *draw_tool);
+
+static void   gimp_region_select_tool_get_mask       (GimpRegionSelectTool  *region_sel,
+                                                      GimpDisplay           *display);
+
+
+G_DEFINE_TYPE (GimpRegionSelectTool, gimp_region_select_tool,
+               GIMP_TYPE_SELECTION_TOOL)
+
+#define parent_class gimp_region_select_tool_parent_class
+
+
+static void
+gimp_region_select_tool_class_init (GimpRegionSelectToolClass *klass)
+{
+  GObjectClass      *object_class    = G_OBJECT_CLASS (klass);
+  GimpToolClass     *tool_class      = GIMP_TOOL_CLASS (klass);
+  GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
+
+  object_class->finalize     = gimp_region_select_tool_finalize;
+
+  tool_class->button_press   = gimp_region_select_tool_button_press;
+  tool_class->button_release = gimp_region_select_tool_button_release;
+  tool_class->motion         = gimp_region_select_tool_motion;
+  tool_class->cursor_update  = gimp_region_select_tool_cursor_update;
+
+  draw_tool_class->draw      = gimp_region_select_tool_draw;
+}
+
+static void
+gimp_region_select_tool_init (GimpRegionSelectTool *region_select)
+{
+  GimpTool *tool = GIMP_TOOL (region_select);
+
+  gimp_tool_control_set_scroll_lock (tool->control, TRUE);
+
+  region_select->x               = 0;
+  region_select->y               = 0;
+  region_select->saved_threshold = 0.0;
+
+  region_select->region_mask     = NULL;
+  region_select->segs            = NULL;
+  region_select->n_segs          = 0;
+}
+
+static void
+gimp_region_select_tool_finalize (GObject *object)
+{
+  GimpRegionSelectTool *region_sel = GIMP_REGION_SELECT_TOOL (object);
+
+  g_clear_object (&region_sel->region_mask);
+
+  g_clear_pointer (&region_sel->segs, g_free);
+  region_sel->n_segs = 0;
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_region_select_tool_button_press (GimpTool            *tool,
+                                      const GimpCoords    *coords,
+                                      guint32              time,
+                                      GdkModifierType      state,
+                                      GimpButtonPressType  press_type,
+                                      GimpDisplay         *display)
+{
+  GimpRegionSelectTool    *region_sel = GIMP_REGION_SELECT_TOOL (tool);
+  GimpRegionSelectOptions *options    = GIMP_REGION_SELECT_TOOL_GET_OPTIONS (tool);
+
+  region_sel->x               = coords->x;
+  region_sel->y               = coords->y;
+  region_sel->saved_threshold = options->threshold;
+
+  if (gimp_selection_tool_start_edit (GIMP_SELECTION_TOOL (region_sel),
+                                      display, coords))
+    {
+      return;
+    }
+
+  gimp_tool_control_activate (tool->control);
+  tool->display = display;
+
+  gimp_tool_push_status (tool, display,
+                         _("Move the mouse to change threshold"));
+
+  gimp_region_select_tool_get_mask (region_sel, display);
+
+  gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
+}
+
+static void
+gimp_region_select_tool_button_release (GimpTool              *tool,
+                                        const 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);
+  GimpImage               *image       = gimp_display_get_image (display);
+
+  gimp_tool_pop_status (tool, display);
+
+  gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
+
+  gimp_tool_control_halt (tool->control);
+
+  if (options->draw_mask)
+    gimp_display_shell_set_mask (gimp_display_get_shell (display),
+                                 NULL, 0, 0, NULL, FALSE);
+
+  if (release_type != GIMP_BUTTON_RELEASE_CANCEL)
+    {
+      if (GIMP_SELECTION_TOOL (tool)->function == SELECTION_ANCHOR)
+        {
+          if (gimp_image_get_floating_selection (image))
+            {
+              /*  If there is a floating selection, anchor it  */
+              floating_sel_anchor (gimp_image_get_floating_selection (image));
+            }
+          else
+            {
+              /*  Otherwise, clear the selection mask  */
+              gimp_channel_clear (gimp_image_get_mask (image), NULL, TRUE);
+            }
+
+          gimp_image_flush (image);
+        }
+      else if (region_sel->region_mask)
+        {
+          gint off_x = 0;
+          gint off_y = 0;
+
+          if (! options->sample_merged)
+            {
+              GimpDrawable *drawable = gimp_image_get_active_drawable (image);
+
+              gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
+            }
+
+          gimp_channel_select_buffer (gimp_image_get_mask (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 (image);
+        }
+    }
+
+  g_clear_object (&region_sel->region_mask);
+
+  g_clear_pointer (&region_sel->segs, g_free);
+  region_sel->n_segs = 0;
+
+  /*  Restore the original threshold  */
+  g_object_set (options,
+                "threshold", region_sel->saved_threshold,
+                NULL);
+}
+
+static void
+gimp_region_select_tool_motion (GimpTool         *tool,
+                                const GimpCoords *coords,
+                                guint32           time,
+                                GdkModifierType   state,
+                                GimpDisplay      *display)
+{
+  GimpRegionSelectTool    *region_sel = GIMP_REGION_SELECT_TOOL (tool);
+  GimpRegionSelectOptions *options    = GIMP_REGION_SELECT_TOOL_GET_OPTIONS (tool);
+  gint                     diff_x, diff_y;
+  gdouble                  diff;
+
+  static guint32 last_time = 0;
+
+  /* don't let the events come in too fast, ignore below a delay of 100 ms */
+  if (time - last_time < 100)
+    return;
+
+  last_time = time;
+
+  diff_x = coords->x - region_sel->x;
+  diff_y = coords->y - region_sel->y;
+
+  diff = ((ABS (diff_x) > ABS (diff_y)) ? diff_x : diff_y) / 2.0;
+
+  g_object_set (options,
+                "threshold", CLAMP (region_sel->saved_threshold + diff, 0, 255),
+                NULL);
+
+  gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
+
+  gimp_region_select_tool_get_mask (region_sel, display);
+
+  gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
+}
+
+static void
+gimp_region_select_tool_cursor_update (GimpTool         *tool,
+                                       const GimpCoords *coords,
+                                       GdkModifierType   state,
+                                       GimpDisplay      *display)
+{
+  GimpRegionSelectOptions *options  = GIMP_REGION_SELECT_TOOL_GET_OPTIONS (tool);
+  GimpCursorModifier       modifier = GIMP_CURSOR_MODIFIER_NONE;
+  GimpImage               *image    = gimp_display_get_image (display);
+
+  if (! gimp_image_coords_in_active_pickable (image, coords,
+                                              FALSE, options->sample_merged,
+                                              FALSE))
+    modifier = GIMP_CURSOR_MODIFIER_BAD;
+
+  gimp_tool_control_set_cursor_modifier (tool->control, modifier);
+
+  GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
+}
+
+static void
+gimp_region_select_tool_draw (GimpDrawTool *draw_tool)
+{
+  GimpRegionSelectTool    *region_sel = GIMP_REGION_SELECT_TOOL (draw_tool);
+  GimpRegionSelectOptions *options    = GIMP_REGION_SELECT_TOOL_GET_OPTIONS (draw_tool);
+
+  if (! options->draw_mask && region_sel->region_mask)
+    {
+      if (! region_sel->segs)
+        {
+          /*  calculate and allocate a new segment array which represents
+           *  the boundary of the contiguous region
+           */
+          region_sel->segs = gimp_boundary_find (region_sel->region_mask, NULL,
+                                                 babl_format ("Y float"),
+                                                 GIMP_BOUNDARY_WITHIN_BOUNDS,
+                                                 0, 0,
+                                                 gegl_buffer_get_width  (region_sel->region_mask),
+                                                 gegl_buffer_get_height (region_sel->region_mask),
+                                                 GIMP_BOUNDARY_HALF_WAY,
+                                                 &region_sel->n_segs);
+
+        }
+
+      if (region_sel->segs)
+        {
+          gint off_x = 0;
+          gint off_y = 0;
+
+          if (! options->sample_merged)
+            {
+              GimpImage    *image    = gimp_display_get_image (draw_tool->display);
+              GimpDrawable *drawable = gimp_image_get_active_drawable (image);
+
+              gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
+            }
+
+          gimp_draw_tool_add_boundary (draw_tool,
+                                       region_sel->segs,
+                                       region_sel->n_segs,
+                                       NULL,
+                                       off_x, off_y);
+        }
+    }
+}
+
+static void
+gimp_region_select_tool_get_mask (GimpRegionSelectTool *region_sel,
+                                  GimpDisplay          *display)
+{
+  GimpRegionSelectOptions *options = GIMP_REGION_SELECT_TOOL_GET_OPTIONS (region_sel);
+  GimpDisplayShell        *shell   = gimp_display_get_shell (display);
+
+  gimp_display_shell_set_override_cursor (shell, (GimpCursorType) GDK_WATCH);
+
+  g_clear_pointer (&region_sel->segs, g_free);
+  region_sel->n_segs = 0;
+
+  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 (options->draw_mask)
+    {
+      if (region_sel->region_mask)
+        {
+          GimpRGB color = { 1.0, 0.0, 1.0, 1.0 };
+          gint    off_x = 0;
+          gint    off_y = 0;
+
+          if (! options->sample_merged)
+            {
+              GimpImage    *image    = gimp_display_get_image (display);
+              GimpDrawable *drawable = gimp_image_get_active_drawable (image);
+
+              gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
+            }
+
+          gimp_display_shell_set_mask (shell, region_sel->region_mask,
+                                       off_x, off_y, &color, FALSE);
+        }
+      else
+        {
+          gimp_display_shell_set_mask (shell, NULL, 0, 0, NULL, FALSE);
+        }
+    }
+
+  gimp_display_shell_unset_override_cursor (shell);
+}