Adding upstream version 2.10.22.upstream/2.10.22upstream

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

1 files changed, 555 insertions, 0 deletions

diff --git a/app/tools/gimppolygonselecttool.c b/app/tools/gimppolygonselecttool.c
new file mode 100644
index 0000000..878e226
--- /dev/null
+++ b/app/tools/gimppolygonselecttool.c
@@ -0,0 +1,555 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * Major improvement to support polygonal segments
+ * Copyright (C) 2008 Martin Nordholts
+ *
+ * This program is polygon software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Polygon 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/gimpchannel.h"
+#include "core/gimpchannel-select.h"
+#include "core/gimpimage.h"
+#include "core/gimplayer-floating-selection.h"
+
+#include "widgets/gimphelp-ids.h"
+#include "widgets/gimpwidgets-utils.h"
+
+#include "display/gimpdisplay.h"
+#include "display/gimptoolpolygon.h"
+
+#include "gimppolygonselecttool.h"
+#include "gimpselectionoptions.h"
+#include "gimptoolcontrol.h"
+
+
+struct _GimpPolygonSelectToolPrivate
+{
+  GimpToolWidget *widget;
+  GimpToolWidget *grab_widget;
+
+  gboolean        pending_response;
+  gint            pending_response_id;
+};
+
+
+/*  local function prototypes  */
+
+static void       gimp_polygon_select_tool_finalize                (GObject               *object);
+
+static void       gimp_polygon_select_tool_control                 (GimpTool              *tool,
+                                                                    GimpToolAction         action,
+                                                                    GimpDisplay           *display);
+static void       gimp_polygon_select_tool_button_press            (GimpTool              *tool,
+                                                                    const GimpCoords      *coords,
+                                                                    guint32                time,
+                                                                    GdkModifierType        state,
+                                                                    GimpButtonPressType    press_type,
+                                                                    GimpDisplay           *display);
+static void       gimp_polygon_select_tool_button_release          (GimpTool              *tool,
+                                                                    const GimpCoords      *coords,
+                                                                    guint32                time,
+                                                                    GdkModifierType        state,
+                                                                    GimpButtonReleaseType  release_type,
+                                                                    GimpDisplay           *display);
+static void       gimp_polygon_select_tool_motion                  (GimpTool              *tool,
+                                                                    const GimpCoords      *coords,
+                                                                    guint32                time,
+                                                                    GdkModifierType        state,
+                                                                    GimpDisplay           *display);
+static gboolean   gimp_polygon_select_tool_key_press               (GimpTool              *tool,
+                                                                    GdkEventKey           *kevent,
+                                                                    GimpDisplay           *display);
+static void       gimp_polygon_select_tool_modifier_key            (GimpTool              *tool,
+                                                                    GdkModifierType        key,
+                                                                    gboolean               press,
+                                                                    GdkModifierType        state,
+                                                                    GimpDisplay           *display);
+static void       gimp_polygon_select_tool_oper_update             (GimpTool              *tool,
+                                                                    const GimpCoords      *coords,
+                                                                    GdkModifierType        state,
+                                                                    gboolean               proximity,
+                                                                    GimpDisplay           *display);
+static void       gimp_polygon_select_tool_cursor_update           (GimpTool              *tool,
+                                                                    const GimpCoords      *coords,
+                                                                    GdkModifierType        state,
+                                                                    GimpDisplay           *display);
+
+static void       gimp_polygon_select_tool_real_confirm            (GimpPolygonSelectTool *poly_sel,
+                                                                    GimpDisplay           *display);
+
+static void       gimp_polygon_select_tool_polygon_change_complete (GimpToolWidget        *polygon,
+                                                                    GimpPolygonSelectTool *poly_sel);
+static void       gimp_polygon_select_tool_polygon_response        (GimpToolWidget        *polygon,
+                                                                    gint                   response_id,
+                                                                    GimpPolygonSelectTool *poly_sel);
+
+static void       gimp_polygon_select_tool_start                   (GimpPolygonSelectTool *poly_sel,
+                                                                    GimpDisplay           *display);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpPolygonSelectTool, gimp_polygon_select_tool,
+                            GIMP_TYPE_SELECTION_TOOL)
+
+#define parent_class gimp_polygon_select_tool_parent_class
+
+
+/*  private functions  */
+
+static void
+gimp_polygon_select_tool_class_init (GimpPolygonSelectToolClass *klass)
+{
+  GObjectClass  *object_class = G_OBJECT_CLASS (klass);
+  GimpToolClass *tool_class   = GIMP_TOOL_CLASS (klass);
+
+  object_class->finalize     = gimp_polygon_select_tool_finalize;
+
+  tool_class->control        = gimp_polygon_select_tool_control;
+  tool_class->button_press   = gimp_polygon_select_tool_button_press;
+  tool_class->button_release = gimp_polygon_select_tool_button_release;
+  tool_class->motion         = gimp_polygon_select_tool_motion;
+  tool_class->key_press      = gimp_polygon_select_tool_key_press;
+  tool_class->modifier_key   = gimp_polygon_select_tool_modifier_key;
+  tool_class->oper_update    = gimp_polygon_select_tool_oper_update;
+  tool_class->cursor_update  = gimp_polygon_select_tool_cursor_update;
+
+  klass->change_complete     = NULL;
+  klass->confirm             = gimp_polygon_select_tool_real_confirm;
+}
+
+static void
+gimp_polygon_select_tool_init (GimpPolygonSelectTool *poly_sel)
+{
+  GimpTool          *tool     = GIMP_TOOL (poly_sel);
+  GimpSelectionTool *sel_tool = GIMP_SELECTION_TOOL (tool);
+
+  poly_sel->priv = gimp_polygon_select_tool_get_instance_private (poly_sel);
+
+  gimp_tool_control_set_motion_mode        (tool->control,
+                                            GIMP_MOTION_MODE_EXACT);
+  gimp_tool_control_set_wants_click        (tool->control, TRUE);
+  gimp_tool_control_set_wants_double_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_SUBPIXEL);
+
+  sel_tool->allow_move = FALSE;
+}
+
+static void
+gimp_polygon_select_tool_finalize (GObject *object)
+{
+  GimpPolygonSelectTool        *poly_sel = GIMP_POLYGON_SELECT_TOOL (object);
+  GimpPolygonSelectToolPrivate *priv     = poly_sel->priv;
+
+  g_clear_object (&priv->widget);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_polygon_select_tool_control (GimpTool       *tool,
+                                  GimpToolAction  action,
+                                  GimpDisplay    *display)
+{
+  GimpPolygonSelectTool *poly_sel = GIMP_POLYGON_SELECT_TOOL (tool);
+
+  switch (action)
+    {
+    case GIMP_TOOL_ACTION_PAUSE:
+    case GIMP_TOOL_ACTION_RESUME:
+      break;
+
+    case GIMP_TOOL_ACTION_HALT:
+      gimp_polygon_select_tool_halt (poly_sel);
+      break;
+
+    case GIMP_TOOL_ACTION_COMMIT:
+      break;
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
+}
+
+static void
+gimp_polygon_select_tool_button_press (GimpTool            *tool,
+                                       const GimpCoords    *coords,
+                                       guint32              time,
+                                       GdkModifierType      state,
+                                       GimpButtonPressType  press_type,
+                                       GimpDisplay         *display)
+{
+  GimpPolygonSelectTool        *poly_sel = GIMP_POLYGON_SELECT_TOOL (tool);
+  GimpPolygonSelectToolPrivate *priv     = poly_sel->priv;
+
+  if (tool->display && tool->display != display)
+    gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, tool->display);
+
+  if (! priv->widget) /* not tool->display, we have a subclass */
+    {
+      /* First of all handle delegation to the selection mask edit logic
+       * if appropriate.
+       */
+      if (gimp_selection_tool_start_edit (GIMP_SELECTION_TOOL (poly_sel),
+                                          display, coords))
+        {
+          return;
+        }
+
+      gimp_polygon_select_tool_start (poly_sel, display);
+
+      gimp_tool_widget_hover (priv->widget, coords, state, TRUE);
+    }
+
+  if (gimp_tool_widget_button_press (priv->widget, coords, time, state,
+                                     press_type))
+    {
+      priv->grab_widget = priv->widget;
+    }
+
+  if (press_type == GIMP_BUTTON_PRESS_NORMAL)
+    gimp_tool_control_activate (tool->control);
+}
+
+static void
+gimp_polygon_select_tool_button_release (GimpTool              *tool,
+                                         const GimpCoords      *coords,
+                                         guint32                time,
+                                         GdkModifierType        state,
+                                         GimpButtonReleaseType  release_type,
+                                         GimpDisplay           *display)
+{
+  GimpPolygonSelectTool        *poly_sel = GIMP_POLYGON_SELECT_TOOL (tool);
+  GimpPolygonSelectToolPrivate *priv     = poly_sel->priv;
+  GimpImage                    *image    = gimp_display_get_image (display);
+
+  gimp_tool_control_halt (tool->control);
+
+  switch (release_type)
+    {
+    case GIMP_BUTTON_RELEASE_CLICK:
+    case GIMP_BUTTON_RELEASE_NO_MOTION:
+      /*  If there is a floating selection, anchor it  */
+      if (gimp_image_get_floating_selection (image))
+        {
+          floating_sel_anchor (gimp_image_get_floating_selection (image));
+
+          gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
+
+          return;
+        }
+
+      /* fallthru */
+
+    default:
+      if (priv->grab_widget)
+        {
+          gimp_tool_widget_button_release (priv->grab_widget,
+                                           coords, time, state, release_type);
+          priv->grab_widget = NULL;
+        }
+    }
+
+  if (priv->pending_response)
+    {
+      gimp_polygon_select_tool_polygon_response (priv->widget,
+                                                 priv->pending_response_id,
+                                                 poly_sel);
+
+      priv->pending_response = FALSE;
+    }
+}
+
+static void
+gimp_polygon_select_tool_motion (GimpTool         *tool,
+                                 const GimpCoords *coords,
+                                 guint32           time,
+                                 GdkModifierType   state,
+                                 GimpDisplay      *display)
+{
+  GimpPolygonSelectTool        *poly_sel = GIMP_POLYGON_SELECT_TOOL (tool);
+  GimpPolygonSelectToolPrivate *priv     = poly_sel->priv;
+
+  if (priv->grab_widget)
+    {
+      gimp_tool_widget_motion (priv->grab_widget, coords, time, state);
+    }
+}
+
+static gboolean
+gimp_polygon_select_tool_key_press (GimpTool    *tool,
+                                    GdkEventKey *kevent,
+                                    GimpDisplay *display)
+{
+  GimpPolygonSelectTool        *poly_sel = GIMP_POLYGON_SELECT_TOOL (tool);
+  GimpPolygonSelectToolPrivate *priv     = poly_sel->priv;
+
+  if (priv->widget && display == tool->display)
+    {
+      return gimp_tool_widget_key_press (priv->widget, kevent);
+    }
+
+  return FALSE;
+}
+
+static void
+gimp_polygon_select_tool_modifier_key (GimpTool        *tool,
+                                       GdkModifierType  key,
+                                       gboolean         press,
+                                       GdkModifierType  state,
+                                       GimpDisplay     *display)
+{
+  GimpPolygonSelectTool        *poly_sel = GIMP_POLYGON_SELECT_TOOL (tool);
+  GimpPolygonSelectToolPrivate *priv     = poly_sel->priv;
+
+  if (priv->widget && display == tool->display)
+    {
+      gimp_tool_widget_hover_modifier (priv->widget, key, press, state);
+
+      /* let GimpSelectTool handle alt+<mod> */
+      if (! (state & GDK_MOD1_MASK))
+        {
+          /* otherwise, shift/ctrl are handled by the widget */
+          state &= ~(gimp_get_extend_selection_mask () |
+                     gimp_get_modify_selection_mask ());
+        }
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->modifier_key (tool, key, press, state,
+                                                display);
+}
+
+static void
+gimp_polygon_select_tool_oper_update (GimpTool         *tool,
+                                      const GimpCoords *coords,
+                                      GdkModifierType   state,
+                                      gboolean          proximity,
+                                      GimpDisplay      *display)
+{
+  GimpPolygonSelectTool        *poly_sel = GIMP_POLYGON_SELECT_TOOL (tool);
+  GimpPolygonSelectToolPrivate *priv     = poly_sel->priv;
+
+  if (priv->widget && display == tool->display)
+    {
+      gimp_tool_widget_hover (priv->widget, coords, state, proximity);
+
+      /* let GimpSelectTool handle alt+<mod> */
+      if (! (state & GDK_MOD1_MASK))
+        {
+          /* otherwise, shift/ctrl are handled by the widget */
+          state &= ~(gimp_get_extend_selection_mask () |
+                     gimp_get_modify_selection_mask ());
+        }
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
+                                               display);
+}
+
+static void
+gimp_polygon_select_tool_cursor_update (GimpTool         *tool,
+                                        const GimpCoords *coords,
+                                        GdkModifierType   state,
+                                        GimpDisplay      *display)
+{
+  GimpPolygonSelectTool        *poly_sel = GIMP_POLYGON_SELECT_TOOL (tool);
+  GimpPolygonSelectToolPrivate *priv     = poly_sel->priv;
+  GimpCursorModifier            modifier = GIMP_CURSOR_MODIFIER_NONE;
+
+  if (tool->display)
+    {
+      if (priv->widget && display == tool->display)
+        {
+          gimp_tool_widget_get_cursor (priv->widget, coords, state,
+                                       NULL, NULL, &modifier);
+
+          /* let GimpSelectTool handle alt+<mod> */
+          if (! (state & GDK_MOD1_MASK))
+            {
+              /* otherwise, shift/ctrl are handled by the widget */
+              state &= ~(gimp_get_extend_selection_mask () |
+                         gimp_get_modify_selection_mask ());
+            }
+        }
+
+      gimp_tool_set_cursor (tool, display,
+                            gimp_tool_control_get_cursor (tool->control),
+                            gimp_tool_control_get_tool_cursor (tool->control),
+                            modifier);
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state,
+                                                 display);
+}
+
+static void
+gimp_polygon_select_tool_real_confirm (GimpPolygonSelectTool *poly_sel,
+                                       GimpDisplay           *display)
+{
+  gimp_tool_control (GIMP_TOOL (poly_sel), GIMP_TOOL_ACTION_COMMIT, display);
+}
+
+static void
+gimp_polygon_select_tool_polygon_change_complete (GimpToolWidget        *polygon,
+                                                  GimpPolygonSelectTool *poly_sel)
+{
+  if (GIMP_POLYGON_SELECT_TOOL_GET_CLASS (poly_sel)->change_complete)
+    {
+      GIMP_POLYGON_SELECT_TOOL_GET_CLASS (poly_sel)->change_complete (
+        poly_sel, GIMP_TOOL (poly_sel)->display);
+    }
+}
+
+static void
+gimp_polygon_select_tool_polygon_response (GimpToolWidget        *polygon,
+                                           gint                   response_id,
+                                           GimpPolygonSelectTool *poly_sel)
+{
+  GimpTool                     *tool = GIMP_TOOL (poly_sel);
+  GimpPolygonSelectToolPrivate *priv = poly_sel->priv;
+
+  /* if we're in the middle of a click, defer the response to the
+   * button_release() event
+   */
+  if (gimp_tool_control_is_active (tool->control))
+    {
+      priv->pending_response    = TRUE;
+      priv->pending_response_id = response_id;
+
+      return;
+    }
+
+  switch (response_id)
+    {
+    case GIMP_TOOL_WIDGET_RESPONSE_CONFIRM:
+      /*  don't gimp_tool_control(COMMIT) here because we don't always
+       *  want to HALT the tool after committing because we have a
+       *  subclass, we do that in the default implementation of
+       *  confirm().
+       */
+      if (GIMP_POLYGON_SELECT_TOOL_GET_CLASS (poly_sel)->confirm)
+        {
+          GIMP_POLYGON_SELECT_TOOL_GET_CLASS (poly_sel)->confirm (
+            poly_sel, tool->display);
+        }
+      break;
+
+    case GIMP_TOOL_WIDGET_RESPONSE_CANCEL:
+      gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
+      break;
+    }
+}
+
+static void
+gimp_polygon_select_tool_start (GimpPolygonSelectTool *poly_sel,
+                                GimpDisplay           *display)
+{
+  GimpTool                     *tool  = GIMP_TOOL (poly_sel);
+  GimpPolygonSelectToolPrivate *priv  = poly_sel->priv;
+  GimpDisplayShell             *shell = gimp_display_get_shell (display);
+
+  tool->display = display;
+
+  priv->widget = gimp_tool_polygon_new (shell);
+
+  gimp_draw_tool_set_widget (GIMP_DRAW_TOOL (tool), priv->widget);
+
+  g_signal_connect (priv->widget, "change-complete",
+                    G_CALLBACK (gimp_polygon_select_tool_polygon_change_complete),
+                    poly_sel);
+  g_signal_connect (priv->widget, "response",
+                    G_CALLBACK (gimp_polygon_select_tool_polygon_response),
+                    poly_sel);
+
+  gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
+}
+
+
+/*  public functions  */
+
+gboolean
+gimp_polygon_select_tool_is_closed (GimpPolygonSelectTool *poly_sel)
+{
+  GimpPolygonSelectToolPrivate *priv;
+
+  g_return_val_if_fail (GIMP_IS_POLYGON_SELECT_TOOL (poly_sel), FALSE);
+
+  priv = poly_sel->priv;
+
+  if (priv->widget)
+    return gimp_tool_polygon_is_closed (GIMP_TOOL_POLYGON (priv->widget));
+
+  return FALSE;
+}
+
+void
+gimp_polygon_select_tool_get_points (GimpPolygonSelectTool  *poly_sel,
+                                     const GimpVector2     **points,
+                                     gint                   *n_points)
+{
+  GimpPolygonSelectToolPrivate *priv;
+
+  g_return_if_fail (GIMP_IS_POLYGON_SELECT_TOOL (poly_sel));
+
+  priv = poly_sel->priv;
+
+  if (priv->widget)
+    {
+      gimp_tool_polygon_get_points (GIMP_TOOL_POLYGON (priv->widget),
+                                    points, n_points);
+    }
+  else
+    {
+      if (points)   *points   = NULL;
+      if (n_points) *n_points = 0;
+    }
+}
+
+
+/*  protected functions  */
+
+gboolean
+gimp_polygon_select_tool_is_grabbed (GimpPolygonSelectTool *poly_sel)
+{
+  GimpPolygonSelectToolPrivate *priv;
+
+  g_return_val_if_fail (GIMP_IS_POLYGON_SELECT_TOOL (poly_sel), FALSE);
+
+  priv = poly_sel->priv;
+
+  return priv->grab_widget != NULL;
+}
+
+void
+gimp_polygon_select_tool_halt (GimpPolygonSelectTool *poly_sel)
+{
+  GimpPolygonSelectToolPrivate *priv;
+
+  g_return_if_fail (GIMP_IS_POLYGON_SELECT_TOOL (poly_sel));
+
+  priv = poly_sel->priv;
+
+  gimp_draw_tool_set_widget (GIMP_DRAW_TOOL (poly_sel), NULL);
+  g_clear_object (&priv->widget);
+}