Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 918 insertions, 0 deletions

diff --git a/app/tools/gimprectangleselecttool.c b/app/tools/gimprectangleselecttool.c
new file mode 100644
index 0000000..65f596d
--- /dev/null
+++ b/app/tools/gimprectangleselecttool.c
@@ -0,0 +1,918 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 "libgimpmath/gimpmath.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "tools-types.h"
+
+#include "core/gimpchannel-select.h"
+#include "core/gimpchannel.h"
+#include "core/gimpimage.h"
+#include "core/gimplayer-floating-selection.h"
+#include "core/gimppickable.h"
+
+#include "widgets/gimphelp-ids.h"
+#include "widgets/gimpwidgets-utils.h"
+
+#include "display/gimpdisplay.h"
+#include "display/gimpdisplayshell.h"
+#include "display/gimptoolrectangle.h"
+
+#include "gimpeditselectiontool.h"
+#include "gimprectangleoptions.h"
+#include "gimprectangleselecttool.h"
+#include "gimprectangleselectoptions.h"
+#include "gimptoolcontrol.h"
+
+#include "gimp-intl.h"
+
+
+struct _GimpRectangleSelectToolPrivate
+{
+  GimpChannelOps  operation;    /* remember for use when modifying   */
+  gboolean        use_saved_op; /* use operation or get from options */
+
+  gdouble         press_x;
+  gdouble         press_y;
+
+  GimpToolWidget *widget;
+  GimpToolWidget *grab_widget;
+  GList          *bindings;
+};
+
+
+static void     gimp_rectangle_select_tool_control        (GimpTool              *tool,
+                                                           GimpToolAction         action,
+                                                           GimpDisplay           *display);
+static void     gimp_rectangle_select_tool_button_press   (GimpTool              *tool,
+                                                           const GimpCoords      *coords,
+                                                           guint32                time,
+                                                           GdkModifierType        state,
+                                                           GimpButtonPressType    press_type,
+                                                           GimpDisplay           *display);
+static void     gimp_rectangle_select_tool_button_release (GimpTool              *tool,
+                                                           const GimpCoords      *coords,
+                                                           guint32                time,
+                                                           GdkModifierType        state,
+                                                           GimpButtonReleaseType  release_type,
+                                                           GimpDisplay           *display);
+static void     gimp_rectangle_select_tool_motion         (GimpTool              *tool,
+                                                           const GimpCoords      *coords,
+                                                           guint32                time,
+                                                           GdkModifierType        state,
+                                                           GimpDisplay           *display);
+static gboolean gimp_rectangle_select_tool_key_press      (GimpTool              *tool,
+                                                           GdkEventKey           *kevent,
+                                                           GimpDisplay           *display);
+static void     gimp_rectangle_select_tool_oper_update    (GimpTool              *tool,
+                                                           const GimpCoords      *coords,
+                                                           GdkModifierType        state,
+                                                           gboolean               proximity,
+                                                           GimpDisplay           *display);
+static void     gimp_rectangle_select_tool_cursor_update  (GimpTool              *tool,
+                                                           const GimpCoords      *coords,
+                                                           GdkModifierType        state,
+                                                           GimpDisplay           *display);
+static void     gimp_rectangle_select_tool_options_notify (GimpTool              *tool,
+                                                           GimpToolOptions       *options,
+                                                           const GParamSpec      *pspec);
+
+static gboolean gimp_rectangle_select_tool_select         (GimpRectangleSelectTool *rect_tool,
+                                                           gint                   x,
+                                                           gint                   y,
+                                                           gint                   w,
+                                                           gint                   h);
+static void     gimp_rectangle_select_tool_real_select    (GimpRectangleSelectTool *rect_tool,
+                                                           GimpChannelOps         operation,
+                                                           gint                   x,
+                                                           gint                   y,
+                                                           gint                   w,
+                                                           gint                   h);
+
+static void     gimp_rectangle_select_tool_rectangle_response
+                                                          (GimpToolWidget          *widget,
+                                                           gint                     response_id,
+                                                           GimpRectangleSelectTool *rect_tool);
+static void     gimp_rectangle_select_tool_rectangle_change_complete
+                                                          (GimpToolWidget          *widget,
+                                                           GimpRectangleSelectTool *rect_tool);
+
+static void     gimp_rectangle_select_tool_start          (GimpRectangleSelectTool *rect_tool,
+                                                           GimpDisplay             *display);
+static void     gimp_rectangle_select_tool_commit         (GimpRectangleSelectTool *rect_tool);
+static void     gimp_rectangle_select_tool_halt           (GimpRectangleSelectTool *rect_tool);
+
+static GimpChannelOps
+                gimp_rectangle_select_tool_get_operation  (GimpRectangleSelectTool *rect_tool);
+static void     gimp_rectangle_select_tool_update_option_defaults
+                                                          (GimpRectangleSelectTool *rect_tool,
+                                                           gboolean                 ignore_pending);
+static void     gimp_rectangle_select_tool_update         (GimpRectangleSelectTool *rect_tool);
+static void     gimp_rectangle_select_tool_auto_shrink    (GimpRectangleSelectTool *rect_tool);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpRectangleSelectTool, gimp_rectangle_select_tool,
+                            GIMP_TYPE_SELECTION_TOOL)
+
+#define parent_class gimp_rectangle_select_tool_parent_class
+
+
+void
+gimp_rectangle_select_tool_register (GimpToolRegisterCallback  callback,
+                                     gpointer                  data)
+{
+  (* callback) (GIMP_TYPE_RECTANGLE_SELECT_TOOL,
+                GIMP_TYPE_RECTANGLE_SELECT_OPTIONS,
+                gimp_rectangle_select_options_gui,
+                0,
+                "gimp-rect-select-tool",
+                _("Rectangle Select"),
+                _("Rectangle Select Tool: Select a rectangular region"),
+                N_("_Rectangle Select"), "R",
+                NULL, GIMP_HELP_TOOL_RECT_SELECT,
+                GIMP_ICON_TOOL_RECT_SELECT,
+                data);
+}
+
+static void
+gimp_rectangle_select_tool_class_init (GimpRectangleSelectToolClass *klass)
+{
+  GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
+
+  tool_class->control        = gimp_rectangle_select_tool_control;
+  tool_class->button_press   = gimp_rectangle_select_tool_button_press;
+  tool_class->button_release = gimp_rectangle_select_tool_button_release;
+  tool_class->motion         = gimp_rectangle_select_tool_motion;
+  tool_class->key_press      = gimp_rectangle_select_tool_key_press;
+  tool_class->oper_update    = gimp_rectangle_select_tool_oper_update;
+  tool_class->cursor_update  = gimp_rectangle_select_tool_cursor_update;
+  tool_class->options_notify = gimp_rectangle_select_tool_options_notify;
+
+  klass->select              = gimp_rectangle_select_tool_real_select;
+}
+
+static void
+gimp_rectangle_select_tool_init (GimpRectangleSelectTool *rect_tool)
+{
+  GimpTool *tool = GIMP_TOOL (rect_tool);
+
+  rect_tool->private =
+    gimp_rectangle_select_tool_get_instance_private (rect_tool);
+
+  gimp_tool_control_set_wants_click      (tool->control, TRUE);
+  gimp_tool_control_set_active_modifiers (tool->control,
+                                          GIMP_TOOL_ACTIVE_MODIFIERS_SEPARATE);
+  gimp_tool_control_set_precision        (tool->control,
+                                          GIMP_CURSOR_PRECISION_PIXEL_BORDER);
+  gimp_tool_control_set_tool_cursor      (tool->control,
+                                          GIMP_TOOL_CURSOR_RECT_SELECT);
+  gimp_tool_control_set_preserve         (tool->control, FALSE);
+  gimp_tool_control_set_dirty_mask       (tool->control,
+                                          GIMP_DIRTY_IMAGE_SIZE |
+                                          GIMP_DIRTY_SELECTION);
+  gimp_tool_control_set_dirty_action     (tool->control,
+                                          GIMP_TOOL_ACTION_COMMIT);
+}
+
+static void
+gimp_rectangle_select_tool_control (GimpTool       *tool,
+                                    GimpToolAction  action,
+                                    GimpDisplay    *display)
+{
+  GimpRectangleSelectTool *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+
+  switch (action)
+    {
+    case GIMP_TOOL_ACTION_PAUSE:
+    case GIMP_TOOL_ACTION_RESUME:
+      break;
+
+    case GIMP_TOOL_ACTION_HALT:
+      gimp_rectangle_select_tool_halt (rect_tool);
+      break;
+
+    case GIMP_TOOL_ACTION_COMMIT:
+      gimp_rectangle_select_tool_commit (rect_tool);
+      break;
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
+}
+
+static void
+gimp_rectangle_select_tool_button_press (GimpTool            *tool,
+                                         const GimpCoords    *coords,
+                                         guint32              time,
+                                         GdkModifierType      state,
+                                         GimpButtonPressType  press_type,
+                                         GimpDisplay         *display)
+{
+  GimpRectangleSelectTool        *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+  GimpRectangleSelectToolPrivate *private   = rect_tool->private;
+  GimpRectangleFunction           function;
+
+  if (tool->display && display != tool->display)
+    gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, tool->display);
+
+  if (gimp_selection_tool_start_edit (GIMP_SELECTION_TOOL (tool),
+                                      display, coords))
+    {
+      /* In some cases we want to finish the rectangle select tool
+       * and hand over responsibility to the selection tool
+       */
+
+      gboolean zero_rect = FALSE;
+
+      if (private->widget)
+        {
+          gdouble x1, y1, x2, y2;
+
+          gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (private->widget),
+                                               &x1, &y1, &x2, &y2);
+          if (x1 == x2 && y1 == y2)
+            zero_rect = TRUE;
+        }
+
+      /* Don't commit a zero-size rectangle, it would look like a
+       * click to commit() and that could anchor the floating
+       * selection or do other evil things. Instead, simply cancel a
+       * zero-size rectangle. See bug #796073.
+       */
+      if (zero_rect)
+        gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
+      else
+        gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, display);
+
+      gimp_rectangle_select_tool_update_option_defaults (rect_tool, TRUE);
+      return;
+    }
+
+  if (! tool->display)
+    {
+      gimp_rectangle_select_tool_start (rect_tool, display);
+
+      gimp_tool_widget_hover (private->widget, coords, state, TRUE);
+
+      /* HACK: force CREATING on a newly created rectangle; otherwise,
+       * the above binding of properties would cause the rectangle to
+       * start with the size from tool options.
+       */
+      gimp_tool_rectangle_set_function (GIMP_TOOL_RECTANGLE (private->widget),
+                                        GIMP_TOOL_RECTANGLE_CREATING);
+    }
+
+  /* if the shift or ctrl keys are down, we don't want to adjust, we
+   * want to create a new rectangle, regardless of pointer loc
+   */
+  if (state & (gimp_get_extend_selection_mask () |
+               gimp_get_modify_selection_mask ()))
+    {
+      gimp_tool_rectangle_set_function (GIMP_TOOL_RECTANGLE (private->widget),
+                                        GIMP_TOOL_RECTANGLE_CREATING);
+    }
+
+  if (gimp_tool_widget_button_press (private->widget, coords, time, state,
+                                     press_type))
+    {
+      private->grab_widget = private->widget;
+    }
+
+  private->press_x = coords->x;
+  private->press_y = coords->y;
+
+  /* if we have an existing rectangle in the current display, then
+   * we have already "executed", and need to undo at this point,
+   * unless the user has done something in the meantime
+   */
+  function =
+    gimp_tool_rectangle_get_function (GIMP_TOOL_RECTANGLE (private->widget));
+
+  if (function == GIMP_TOOL_RECTANGLE_CREATING)
+    private->use_saved_op = FALSE;
+
+  gimp_selection_tool_start_change (
+    GIMP_SELECTION_TOOL (tool),
+    function == GIMP_TOOL_RECTANGLE_CREATING,
+    gimp_rectangle_select_tool_get_operation (rect_tool));
+
+  gimp_tool_control_activate (tool->control);
+}
+
+static void
+gimp_rectangle_select_tool_button_release (GimpTool              *tool,
+                                           const GimpCoords      *coords,
+                                           guint32                time,
+                                           GdkModifierType        state,
+                                           GimpButtonReleaseType  release_type,
+                                           GimpDisplay           *display)
+{
+  GimpRectangleSelectTool        *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+  GimpRectangleSelectToolPrivate *priv      = rect_tool->private;
+
+  gimp_tool_control_halt (tool->control);
+
+  gimp_selection_tool_end_change (GIMP_SELECTION_TOOL (tool),
+                                  /* if the user has not moved the mouse,
+                                   * cancel the change
+                                   */
+                                  release_type == GIMP_BUTTON_RELEASE_CLICK ||
+                                  release_type == GIMP_BUTTON_RELEASE_CANCEL);
+
+  gimp_tool_pop_status (tool, display);
+
+  if (priv->grab_widget)
+    {
+      gimp_tool_widget_button_release (priv->grab_widget,
+                                       coords, time, state, release_type);
+      priv->grab_widget = NULL;
+    }
+}
+
+static void
+gimp_rectangle_select_tool_motion (GimpTool         *tool,
+                                   const GimpCoords *coords,
+                                   guint32           time,
+                                   GdkModifierType   state,
+                                   GimpDisplay      *display)
+{
+  GimpRectangleSelectTool        *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+  GimpRectangleSelectToolPrivate *priv      = rect_tool->private;
+
+  if (priv->grab_widget)
+    {
+      gimp_tool_widget_motion (priv->grab_widget, coords, time, state);
+    }
+}
+
+static gboolean
+gimp_rectangle_select_tool_key_press (GimpTool    *tool,
+                                      GdkEventKey *kevent,
+                                      GimpDisplay *display)
+{
+  GimpRectangleSelectTool        *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+  GimpRectangleSelectToolPrivate *priv      = rect_tool->private;
+
+  if (priv->widget && display == tool->display)
+    {
+      if (gimp_tool_widget_key_press (priv->widget, kevent))
+        return TRUE;
+    }
+
+  return gimp_edit_selection_tool_key_press (tool, kevent, display);
+}
+
+static void
+gimp_rectangle_select_tool_oper_update (GimpTool         *tool,
+                                        const GimpCoords *coords,
+                                        GdkModifierType   state,
+                                        gboolean          proximity,
+                                        GimpDisplay      *display)
+{
+  GimpRectangleSelectTool        *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+  GimpRectangleSelectToolPrivate *priv      = rect_tool->private;
+
+  if (priv->widget && display == tool->display)
+    {
+      gimp_tool_widget_hover (priv->widget, coords, state, proximity);
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
+                                               display);
+}
+
+static void
+gimp_rectangle_select_tool_cursor_update (GimpTool         *tool,
+                                          const GimpCoords *coords,
+                                          GdkModifierType   state,
+                                          GimpDisplay      *display)
+{
+  GimpRectangleSelectTool        *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+  GimpRectangleSelectToolPrivate *private   = rect_tool->private;
+  GimpCursorType                  cursor    = GIMP_CURSOR_CROSSHAIR_SMALL;
+  GimpCursorModifier              modifier  = GIMP_CURSOR_MODIFIER_NONE;
+
+  if (private->widget && display == tool->display)
+    {
+      gimp_tool_widget_get_cursor (private->widget, coords, state,
+                                   &cursor, NULL, &modifier);
+    }
+
+  gimp_tool_control_set_cursor          (tool->control, cursor);
+  gimp_tool_control_set_cursor_modifier (tool->control, modifier);
+
+  /* override the previous if shift or ctrl are down */
+  if (state & (gimp_get_extend_selection_mask () |
+               gimp_get_modify_selection_mask ()))
+    {
+      gimp_tool_control_set_cursor (tool->control,
+                                    GIMP_CURSOR_CROSSHAIR_SMALL);
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
+}
+
+static void
+gimp_rectangle_select_tool_options_notify (GimpTool         *tool,
+                                           GimpToolOptions  *options,
+                                           const GParamSpec *pspec)
+{
+  if (! strcmp (pspec->name, "antialias")      ||
+      ! strcmp (pspec->name, "feather")        ||
+      ! strcmp (pspec->name, "feather-radius") ||
+      ! strcmp (pspec->name, "round-corners")  ||
+      ! strcmp (pspec->name, "corner-radius"))
+    {
+      gimp_rectangle_select_tool_update (GIMP_RECTANGLE_SELECT_TOOL (tool));
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec);
+}
+
+static gboolean
+gimp_rectangle_select_tool_select (GimpRectangleSelectTool *rect_tool,
+                                   gint                     x,
+                                   gint                     y,
+                                   gint                     w,
+                                   gint                     h)
+{
+  GimpTool       *tool  = GIMP_TOOL (rect_tool);
+  GimpImage      *image = gimp_display_get_image (tool->display);
+  gboolean        rectangle_exists;
+  GimpChannelOps  operation;
+
+  gimp_tool_pop_status (tool, tool->display);
+
+  rectangle_exists = (x <= gimp_image_get_width  (image) &&
+                      y <= gimp_image_get_height (image) &&
+                      x + w >= 0                         &&
+                      y + h >= 0                         &&
+                      w > 0                              &&
+                      h > 0);
+
+  operation = gimp_rectangle_select_tool_get_operation (rect_tool);
+
+  /* if rectangle exists, turn it into a selection */
+  if (rectangle_exists)
+    {
+      gimp_selection_tool_start_change (GIMP_SELECTION_TOOL (rect_tool),
+                                        FALSE,
+                                        operation);
+
+      GIMP_RECTANGLE_SELECT_TOOL_GET_CLASS (rect_tool)->select (rect_tool,
+                                                                operation,
+                                                                x, y, w, h);
+
+      gimp_selection_tool_end_change (GIMP_SELECTION_TOOL (rect_tool),
+                                      FALSE);
+    }
+
+  return rectangle_exists;
+}
+
+static void
+gimp_rectangle_select_tool_real_select (GimpRectangleSelectTool *rect_tool,
+                                        GimpChannelOps           operation,
+                                        gint                     x,
+                                        gint                     y,
+                                        gint                     w,
+                                        gint                     h)
+{
+  GimpTool                   *tool    = GIMP_TOOL (rect_tool);
+  GimpSelectionOptions       *options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
+  GimpRectangleSelectOptions *rect_options;
+  GimpChannel                *channel;
+
+  rect_options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (tool);
+
+  channel = gimp_image_get_mask (gimp_display_get_image (tool->display));
+
+  if (rect_options->round_corners)
+    {
+      /* To prevent elliptification of the rectangle,
+       * we must cap the corner radius.
+       */
+      gdouble max    = MIN (w / 2.0, h / 2.0);
+      gdouble radius = MIN (rect_options->corner_radius, max);
+
+      gimp_channel_select_round_rect (channel,
+                                      x, y, w, h,
+                                      radius, radius,
+                                      operation,
+                                      options->antialias,
+                                      options->feather,
+                                      options->feather_radius,
+                                      options->feather_radius,
+                                      TRUE);
+    }
+  else
+    {
+      gimp_channel_select_rectangle (channel,
+                                     x, y, w, h,
+                                     operation,
+                                     options->feather,
+                                     options->feather_radius,
+                                     options->feather_radius,
+                                     TRUE);
+    }
+}
+
+static void
+gimp_rectangle_select_tool_rectangle_response (GimpToolWidget          *widget,
+                                               gint                     response_id,
+                                               GimpRectangleSelectTool *rect_tool)
+{
+  GimpTool *tool = GIMP_TOOL (rect_tool);
+
+  switch (response_id)
+    {
+    case GIMP_TOOL_WIDGET_RESPONSE_CONFIRM:
+      {
+        gdouble x1, y1, x2, y2;
+
+        gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (widget),
+                                             &x1, &y1, &x2, &y2);
+        if (x1 == x2 && y1 == y2)
+          {
+            /*  if there are no extents, we got here because of a
+             *  click, call commit() directly because we might want to
+             *  reconfigure the rectangle and continue, instead of
+             *  HALTing it like calling COMMIT would do
+             */
+            gimp_rectangle_select_tool_commit (rect_tool);
+
+            gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (widget),
+                                                 &x1, &y1, &x2, &y2);
+            if (x1 == x2 && y1 == y2)
+              {
+                /*  if there still is no rectangle after the
+                 *  tool_commit(), the click was outside the selection
+                 *  and we HALT to get rid of a zero-size tool widget.
+                 */
+                gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
+              }
+         }
+        else
+          {
+            gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, tool->display);
+          }
+      }
+      break;
+
+    case GIMP_TOOL_WIDGET_RESPONSE_CANCEL:
+      gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
+      break;
+    }
+}
+
+static void
+gimp_rectangle_select_tool_rectangle_change_complete (GimpToolWidget          *widget,
+                                                      GimpRectangleSelectTool *rect_tool)
+{
+  gimp_rectangle_select_tool_update (rect_tool);
+}
+
+static void
+gimp_rectangle_select_tool_start (GimpRectangleSelectTool *rect_tool,
+                                  GimpDisplay             *display)
+{
+  static const gchar *properties[] =
+  {
+    "highlight",
+    "highlight-opacity",
+    "guide",
+    "round-corners",
+    "corner-radius",
+    "x",
+    "y",
+    "width",
+    "height",
+    "fixed-rule-active",
+    "fixed-rule",
+    "desired-fixed-width",
+    "desired-fixed-height",
+    "desired-fixed-size-width",
+    "desired-fixed-size-height",
+    "aspect-numerator",
+    "aspect-denominator",
+    "fixed-center"
+  };
+
+  GimpTool                       *tool    = GIMP_TOOL (rect_tool);
+  GimpRectangleSelectToolPrivate *private = rect_tool->private;
+  GimpDisplayShell               *shell   = gimp_display_get_shell (display);
+  GimpRectangleSelectOptions     *options;
+  GimpToolWidget                 *widget;
+  gboolean                        draw_ellipse;
+  gint                            i;
+
+  options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (rect_tool);
+
+  tool->display = display;
+
+  private->widget = widget = gimp_tool_rectangle_new (shell);
+
+  draw_ellipse = GIMP_RECTANGLE_SELECT_TOOL_GET_CLASS (rect_tool)->draw_ellipse;
+
+  g_object_set (widget,
+                "draw-ellipse", draw_ellipse,
+                "status-title", draw_ellipse ? _("Ellipse: ") : _("Rectangle: "),
+                NULL);
+
+  gimp_draw_tool_set_widget (GIMP_DRAW_TOOL (tool), widget);
+
+  for (i = 0; i < G_N_ELEMENTS (properties); i++)
+    {
+      GBinding *binding =
+        g_object_bind_property (G_OBJECT (options), properties[i],
+                                G_OBJECT (widget),  properties[i],
+                                G_BINDING_SYNC_CREATE |
+                                G_BINDING_BIDIRECTIONAL);
+
+      private->bindings = g_list_prepend (private->bindings, binding);
+    }
+
+  gimp_rectangle_options_connect (GIMP_RECTANGLE_OPTIONS (options),
+                                  gimp_display_get_image (shell->display),
+                                  G_CALLBACK (gimp_rectangle_select_tool_auto_shrink),
+                                  rect_tool);
+
+  g_signal_connect (widget, "response",
+                    G_CALLBACK (gimp_rectangle_select_tool_rectangle_response),
+                    rect_tool);
+  g_signal_connect (widget, "change-complete",
+                    G_CALLBACK (gimp_rectangle_select_tool_rectangle_change_complete),
+                    rect_tool);
+
+  gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
+}
+
+/* This function is called if the user clicks and releases the left
+ * button without moving it.  There are the things we might want
+ * to do here:
+ * 1) If there is an existing rectangle and we are inside it, we
+ *    convert it into a selection.
+ * 2) If there is an existing rectangle and we are outside it, we
+ *    clear it.
+ * 3) If there is no rectangle and there is a floating selection,
+ *    we anchor it.
+ * 4) If there is no rectangle and we are inside the selection, we
+ *    create a rectangle from the selection bounds.
+ * 5) If there is no rectangle and we are outside the selection,
+ *    we clear the selection.
+ */
+static void
+gimp_rectangle_select_tool_commit (GimpRectangleSelectTool *rect_tool)
+{
+  GimpTool                       *tool = GIMP_TOOL (rect_tool);
+  GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+
+  if (priv->widget)
+    {
+      gdouble x1, y1, x2, y2;
+      gint    w, h;
+
+      gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (priv->widget),
+                                           &x1, &y1, &x2, &y2);
+      w = x2 - x1;
+      h = y2 - y1;
+
+      if (w == 0 && h == 0)
+        {
+          GimpImage   *image     = gimp_display_get_image (tool->display);
+          GimpChannel *selection = gimp_image_get_mask (image);
+          gint         press_x;
+          gint         press_y;
+
+          if (gimp_image_get_floating_selection (image))
+            {
+              floating_sel_anchor (gimp_image_get_floating_selection (image));
+              gimp_image_flush (image);
+
+              return;
+            }
+
+          press_x = ROUND (priv->press_x);
+          press_y = ROUND (priv->press_y);
+
+          /*  if the click was inside the marching ants  */
+          if (gimp_pickable_get_opacity_at (GIMP_PICKABLE (selection),
+                                            press_x, press_y) > 0.5)
+            {
+              gint x, y, w, h;
+
+              if (gimp_item_bounds (GIMP_ITEM (selection), &x, &y, &w, &h))
+                {
+                  g_object_set (priv->widget,
+                                "x1", (gdouble) x,
+                                "y1", (gdouble) y,
+                                "x2", (gdouble) (x + w),
+                                "y2", (gdouble) (y + h),
+                                NULL);
+                }
+
+              gimp_rectangle_select_tool_update (rect_tool);
+            }
+          else
+            {
+              GimpChannelOps  operation;
+
+              /* prevent this change from halting the tool */
+              gimp_tool_control_push_preserve (tool->control, TRUE);
+
+              /* We can conceptually think of a click outside of the
+               * selection as adding a 0px selection. Behave intuitively
+               * for the current selection mode
+               */
+              operation = gimp_rectangle_select_tool_get_operation (rect_tool);
+
+              switch (operation)
+                {
+                case GIMP_CHANNEL_OP_REPLACE:
+                case GIMP_CHANNEL_OP_INTERSECT:
+                  gimp_channel_clear (selection, NULL, TRUE);
+                  gimp_image_flush (image);
+                  break;
+
+                case GIMP_CHANNEL_OP_ADD:
+                case GIMP_CHANNEL_OP_SUBTRACT:
+                default:
+                  /* Do nothing */
+                  break;
+                }
+
+              gimp_tool_control_pop_preserve (tool->control);
+            }
+        }
+
+      gimp_rectangle_select_tool_update_option_defaults (rect_tool, FALSE);
+    }
+}
+
+static void
+gimp_rectangle_select_tool_halt (GimpRectangleSelectTool *rect_tool)
+{
+  GimpTool                       *tool = GIMP_TOOL (rect_tool);
+  GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+  GimpRectangleSelectOptions     *options;
+
+  options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (rect_tool);
+
+  if (tool->display)
+    {
+      GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
+
+      gimp_display_shell_set_highlight (shell, NULL, 0.0);
+
+      gimp_rectangle_options_disconnect (GIMP_RECTANGLE_OPTIONS (options),
+                                         G_CALLBACK (gimp_rectangle_select_tool_auto_shrink),
+                                         rect_tool);
+    }
+
+  if (gimp_draw_tool_is_active (GIMP_DRAW_TOOL (tool)))
+    gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
+
+  /*  disconnect bindings manually so they are really gone *now*, we
+   *  might be in the middle of a signal emission that keeps the
+   *  widget and its bindings alive.
+   */
+  g_list_free_full (priv->bindings, (GDestroyNotify) g_object_unref);
+  priv->bindings = NULL;
+
+  gimp_draw_tool_set_widget (GIMP_DRAW_TOOL (tool), NULL);
+  g_clear_object (&priv->widget);
+
+  tool->display = NULL;
+
+  gimp_rectangle_select_tool_update_option_defaults (rect_tool, TRUE);
+}
+
+static GimpChannelOps
+gimp_rectangle_select_tool_get_operation (GimpRectangleSelectTool *rect_tool)
+{
+  GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+  GimpSelectionOptions           *options;
+
+  options = GIMP_SELECTION_TOOL_GET_OPTIONS (rect_tool);
+
+  if (priv->use_saved_op)
+    return priv->operation;
+  else
+    return options->operation;
+}
+
+/**
+ * gimp_rectangle_select_tool_update_option_defaults:
+ * @crop_tool:
+ * @ignore_pending: %TRUE to ignore any pending crop rectangle.
+ *
+ * Sets the default Fixed: Aspect ratio and Fixed: Size option
+ * properties.
+ */
+static void
+gimp_rectangle_select_tool_update_option_defaults (GimpRectangleSelectTool *rect_tool,
+                                                   gboolean                 ignore_pending)
+{
+  GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+  GimpTool                       *tool = GIMP_TOOL (rect_tool);
+  GimpRectangleOptions           *rect_options;
+
+  rect_options = GIMP_RECTANGLE_OPTIONS (gimp_tool_get_options (tool));
+
+  if (priv->widget && ! ignore_pending)
+    {
+      /* There is a pending rectangle and we should not ignore it, so
+       * set default Fixed: Size to the same as the current pending
+       * rectangle width/height.
+       */
+
+      gimp_tool_rectangle_pending_size_set (GIMP_TOOL_RECTANGLE (priv->widget),
+                                            G_OBJECT (rect_options),
+                                            "default-aspect-numerator",
+                                            "default-aspect-denominator");
+
+      g_object_set (G_OBJECT (rect_options),
+                    "use-string-current", TRUE,
+                    NULL);
+    }
+  else
+    {
+      g_object_set (G_OBJECT (rect_options),
+                    "default-aspect-numerator",   1.0,
+                    "default-aspect-denominator", 1.0,
+                    NULL);
+
+      g_object_set (G_OBJECT (rect_options),
+                    "use-string-current", FALSE,
+                    NULL);
+    }
+}
+
+static void
+gimp_rectangle_select_tool_update (GimpRectangleSelectTool *rect_tool)
+{
+  GimpTool                       *tool = GIMP_TOOL (rect_tool);
+  GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+
+  /* prevent change in selection from halting the tool */
+  gimp_tool_control_push_preserve (tool->control, TRUE);
+
+  if (tool->display && ! gimp_tool_control_is_active (tool->control))
+    {
+      gdouble x1, y1, x2, y2;
+
+      gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (priv->widget),
+                                           &x1, &y1, &x2, &y2);
+
+      gimp_rectangle_select_tool_select (rect_tool,
+                                         x1, y1, x2 - x1, y2 - y1);
+
+      if (! priv->use_saved_op)
+        {
+          GimpSelectionOptions *options;
+
+          options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
+
+          /* remember the operation now in case we modify the rectangle */
+          priv->operation    = options->operation;
+          priv->use_saved_op = TRUE;
+        }
+    }
+
+  gimp_tool_control_pop_preserve (tool->control);
+
+  gimp_rectangle_select_tool_update_option_defaults (rect_tool, FALSE);
+}
+
+static void
+gimp_rectangle_select_tool_auto_shrink (GimpRectangleSelectTool *rect_tool)
+{
+  GimpRectangleSelectToolPrivate *private = rect_tool->private;
+  gboolean                        shrink_merged;
+
+  g_object_get (gimp_tool_get_options (GIMP_TOOL (rect_tool)),
+                "shrink-merged", &shrink_merged,
+                NULL);
+
+  gimp_tool_rectangle_auto_shrink (GIMP_TOOL_RECTANGLE (private->widget),
+                                   shrink_merged);
+}