Adding upstream version 2.10.22.upstream/2.10.22upstream

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

1 files changed, 1052 insertions, 0 deletions

diff --git a/app/tools/gimpbucketfilltool.c b/app/tools/gimpbucketfilltool.c
new file mode 100644
index 0000000..6197f87
--- /dev/null
+++ b/app/tools/gimpbucketfilltool.c
@@ -0,0 +1,1052 @@
+/* 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 "libgimpwidgets/gimpwidgets.h"
+
+#include "tools-types.h"
+
+#include "config/gimpguiconfig.h"
+
+#include "core/gimp.h"
+#include "core/gimpasync.h"
+#include "core/gimpcancelable.h"
+#include "core/gimpcontainer.h"
+#include "core/gimpdrawable-bucket-fill.h"
+#include "core/gimpdrawable-edit.h"
+#include "core/gimpdrawablefilter.h"
+#include "core/gimperror.h"
+#include "core/gimpfilloptions.h"
+#include "core/gimpimage.h"
+#include "core/gimpimageproxy.h"
+#include "core/gimpitem.h"
+#include "core/gimplineart.h"
+#include "core/gimppickable.h"
+#include "core/gimppickable-contiguous-region.h"
+#include "core/gimpprogress.h"
+#include "core/gimpprojection.h"
+#include "core/gimptoolinfo.h"
+#include "core/gimpwaitable.h"
+
+#include "gegl/gimp-gegl-nodes.h"
+
+#include "operations/layer-modes/gimp-layer-modes.h"
+
+#include "widgets/gimphelp-ids.h"
+#include "widgets/gimpwidgets-utils.h"
+
+#include "display/gimpdisplay.h"
+#include "display/gimpdisplayshell.h"
+
+#include "gimpbucketfilloptions.h"
+#include "gimpbucketfilltool.h"
+#include "gimpcoloroptions.h"
+#include "gimptoolcontrol.h"
+#include "gimptools-utils.h"
+
+#include "gimp-intl.h"
+
+
+struct _GimpBucketFillToolPrivate
+{
+  GimpLineArt        *line_art;
+  GimpImage          *line_art_image;
+  GimpDisplayShell   *line_art_shell;
+
+  /* For preview */
+  GeglNode           *graph;
+  GeglNode           *fill_node;
+  GeglNode           *offset_node;
+
+  GeglBuffer         *fill_mask;
+
+  GimpDrawableFilter *filter;
+
+  /* Temp property save */
+  GimpBucketFillMode  fill_mode;
+  GimpBucketFillArea  fill_area;
+};
+
+
+/*  local function prototypes  */
+
+static void     gimp_bucket_fill_tool_constructed      (GObject               *object);
+static void     gimp_bucket_fill_tool_finalize         (GObject               *object);
+
+static void     gimp_bucket_fill_tool_button_press     (GimpTool              *tool,
+                                                        const GimpCoords      *coords,
+                                                        guint32                time,
+                                                        GdkModifierType        state,
+                                                        GimpButtonPressType    press_type,
+                                                        GimpDisplay           *display);
+static void     gimp_bucket_fill_tool_motion           (GimpTool              *tool,
+                                                        const GimpCoords      *coords,
+                                                        guint32                time,
+                                                        GdkModifierType        state,
+                                                        GimpDisplay           *display);
+static void     gimp_bucket_fill_tool_button_release   (GimpTool              *tool,
+                                                        const GimpCoords      *coords,
+                                                        guint32                time,
+                                                        GdkModifierType        state,
+                                                        GimpButtonReleaseType  release_type,
+                                                        GimpDisplay           *display);
+static void     gimp_bucket_fill_tool_modifier_key     (GimpTool              *tool,
+                                                        GdkModifierType        key,
+                                                        gboolean               press,
+                                                        GdkModifierType        state,
+                                                        GimpDisplay           *display);
+static void     gimp_bucket_fill_tool_cursor_update    (GimpTool              *tool,
+                                                        const GimpCoords      *coords,
+                                                        GdkModifierType        state,
+                                                        GimpDisplay           *display);
+static void     gimp_bucket_fill_tool_options_notify   (GimpTool              *tool,
+                                                        GimpToolOptions       *options,
+                                                        const GParamSpec      *pspec);
+
+static void gimp_bucket_fill_tool_line_art_computing_start (GimpBucketFillTool *tool);
+static void gimp_bucket_fill_tool_line_art_computing_end   (GimpBucketFillTool *tool);
+
+static gboolean gimp_bucket_fill_tool_coords_in_active_pickable
+                                                       (GimpBucketFillTool    *tool,
+                                                        GimpDisplay           *display,
+                                                        const GimpCoords      *coords);
+
+static void     gimp_bucket_fill_tool_start            (GimpBucketFillTool    *tool,
+                                                        const GimpCoords      *coords,
+                                                        GimpDisplay           *display);
+static void     gimp_bucket_fill_tool_preview          (GimpBucketFillTool    *tool,
+                                                        const GimpCoords      *coords,
+                                                        GimpDisplay           *display,
+                                                        GimpFillOptions       *fill_options);
+static void     gimp_bucket_fill_tool_commit           (GimpBucketFillTool    *tool);
+static void     gimp_bucket_fill_tool_halt             (GimpBucketFillTool    *tool);
+static void     gimp_bucket_fill_tool_filter_flush     (GimpDrawableFilter    *filter,
+                                                        GimpTool              *tool);
+static void     gimp_bucket_fill_tool_create_graph     (GimpBucketFillTool    *tool);
+
+static void     gimp_bucket_fill_tool_reset_line_art   (GimpBucketFillTool    *tool);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpBucketFillTool, gimp_bucket_fill_tool,
+                            GIMP_TYPE_COLOR_TOOL)
+
+#define parent_class gimp_bucket_fill_tool_parent_class
+
+
+void
+gimp_bucket_fill_tool_register (GimpToolRegisterCallback  callback,
+                                gpointer                  data)
+{
+  (* callback) (GIMP_TYPE_BUCKET_FILL_TOOL,
+                GIMP_TYPE_BUCKET_FILL_OPTIONS,
+                gimp_bucket_fill_options_gui,
+                GIMP_CONTEXT_PROP_MASK_FOREGROUND |
+                GIMP_CONTEXT_PROP_MASK_BACKGROUND |
+                GIMP_CONTEXT_PROP_MASK_OPACITY    |
+                GIMP_CONTEXT_PROP_MASK_PAINT_MODE |
+                GIMP_CONTEXT_PROP_MASK_PATTERN,
+                "gimp-bucket-fill-tool",
+                _("Bucket Fill"),
+                _("Bucket Fill Tool: Fill selected area with a color or pattern"),
+                N_("_Bucket Fill"), "<shift>B",
+                NULL, GIMP_HELP_TOOL_BUCKET_FILL,
+                GIMP_ICON_TOOL_BUCKET_FILL,
+                data);
+}
+
+static void
+gimp_bucket_fill_tool_class_init (GimpBucketFillToolClass *klass)
+{
+  GObjectClass  *object_class = G_OBJECT_CLASS (klass);
+  GimpToolClass *tool_class   = GIMP_TOOL_CLASS (klass);
+
+  object_class->constructed  = gimp_bucket_fill_tool_constructed;
+  object_class->finalize     = gimp_bucket_fill_tool_finalize;
+
+  tool_class->button_press   = gimp_bucket_fill_tool_button_press;
+  tool_class->motion         = gimp_bucket_fill_tool_motion;
+  tool_class->button_release = gimp_bucket_fill_tool_button_release;
+  tool_class->modifier_key   = gimp_bucket_fill_tool_modifier_key;
+  tool_class->cursor_update  = gimp_bucket_fill_tool_cursor_update;
+  tool_class->options_notify = gimp_bucket_fill_tool_options_notify;
+}
+
+static void
+gimp_bucket_fill_tool_init (GimpBucketFillTool *bucket_fill_tool)
+{
+  GimpTool *tool = GIMP_TOOL (bucket_fill_tool);
+
+  gimp_tool_control_set_scroll_lock     (tool->control, TRUE);
+  gimp_tool_control_set_wants_click     (tool->control, TRUE);
+  gimp_tool_control_set_tool_cursor     (tool->control,
+                                         GIMP_TOOL_CURSOR_BUCKET_FILL);
+  gimp_tool_control_set_action_opacity  (tool->control,
+                                         "context/context-opacity-set");
+  gimp_tool_control_set_action_object_1 (tool->control,
+                                         "context/context-pattern-select-set");
+
+  bucket_fill_tool->priv =
+    gimp_bucket_fill_tool_get_instance_private (bucket_fill_tool);
+}
+
+static void
+gimp_bucket_fill_tool_constructed (GObject *object)
+{
+  GimpTool              *tool        = GIMP_TOOL (object);
+  GimpBucketFillTool    *bucket_tool = GIMP_BUCKET_FILL_TOOL (object);
+  GimpBucketFillOptions *options     = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  Gimp                  *gimp        = GIMP_CONTEXT (options)->gimp;
+  GimpContext           *context     = gimp_get_user_context (gimp);
+  GimpLineArt           *line_art;
+
+  G_OBJECT_CLASS (parent_class)->constructed (object);
+
+  gimp_tool_control_set_motion_mode (tool->control,
+                                     options->fill_area == GIMP_BUCKET_FILL_LINE_ART ?
+                                     GIMP_MOTION_MODE_EXACT : GIMP_MOTION_MODE_COMPRESS);
+
+  line_art = gimp_line_art_new ();
+  g_object_bind_property (options,  "fill-transparent",
+                          line_art, "select-transparent",
+                          G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL);
+  g_object_bind_property (options,  "line-art-threshold",
+                          line_art, "threshold",
+                          G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL);
+  g_object_bind_property (options,  "line-art-max-grow",
+                          line_art, "max-grow",
+                          G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL);
+  g_object_bind_property (options,  "line-art-max-gap-length",
+                          line_art, "spline-max-length",
+                          G_BINDING_SYNC_CREATE | G_BINDING_DEFAULT);
+  g_object_bind_property (options,  "line-art-max-gap-length",
+                          line_art, "segment-max-length",
+                          G_BINDING_SYNC_CREATE | G_BINDING_DEFAULT);
+  g_signal_connect_swapped (line_art, "computing-start",
+                            G_CALLBACK (gimp_bucket_fill_tool_line_art_computing_start),
+                            tool);
+  g_signal_connect_swapped (line_art, "computing-end",
+                            G_CALLBACK (gimp_bucket_fill_tool_line_art_computing_end),
+                            tool);
+  gimp_line_art_bind_gap_length (line_art, TRUE);
+  bucket_tool->priv->line_art = line_art;
+
+  gimp_bucket_fill_tool_reset_line_art (bucket_tool);
+
+  g_signal_connect_swapped (options, "notify::line-art-source",
+                            G_CALLBACK (gimp_bucket_fill_tool_reset_line_art),
+                            tool);
+  g_signal_connect_swapped (context, "display-changed",
+                            G_CALLBACK (gimp_bucket_fill_tool_reset_line_art),
+                            tool);
+
+  GIMP_COLOR_TOOL (tool)->pick_target =
+    (options->fill_mode == GIMP_BUCKET_FILL_BG) ?
+    GIMP_COLOR_PICK_TARGET_BACKGROUND : GIMP_COLOR_PICK_TARGET_FOREGROUND;
+}
+
+static void
+gimp_bucket_fill_tool_finalize (GObject *object)
+{
+  GimpBucketFillTool    *tool     = GIMP_BUCKET_FILL_TOOL (object);
+  GimpBucketFillOptions *options  = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  Gimp                  *gimp     = GIMP_CONTEXT (options)->gimp;
+  GimpContext           *context  = gimp_get_user_context (gimp);
+
+  if (tool->priv->line_art_image)
+    {
+      g_signal_handlers_disconnect_by_data (gimp_image_get_layers (tool->priv->line_art_image), tool);
+      g_signal_handlers_disconnect_by_data (tool->priv->line_art_image, tool);
+      tool->priv->line_art_image = NULL;
+    }
+  if (tool->priv->line_art_shell)
+    {
+      g_signal_handlers_disconnect_by_func (
+        tool->priv->line_art_shell,
+        gimp_bucket_fill_tool_reset_line_art,
+        tool);
+      tool->priv->line_art_shell = NULL;
+    }
+  g_clear_object (&tool->priv->line_art);
+
+  g_signal_handlers_disconnect_by_data (options, tool);
+  g_signal_handlers_disconnect_by_data (context, tool);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static gboolean
+gimp_bucket_fill_tool_coords_in_active_pickable (GimpBucketFillTool *tool,
+                                                 GimpDisplay        *display,
+                                                 const GimpCoords   *coords)
+{
+  GimpBucketFillOptions *options       = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  GimpDisplayShell      *shell         = gimp_display_get_shell (display);
+  GimpImage             *image         = gimp_display_get_image (display);
+  gboolean               sample_merged = FALSE;
+
+  switch (options->fill_area)
+    {
+    case GIMP_BUCKET_FILL_SELECTION:
+      break;
+
+    case GIMP_BUCKET_FILL_SIMILAR_COLORS:
+      sample_merged = options->sample_merged;
+      break;
+
+    case GIMP_BUCKET_FILL_LINE_ART:
+      sample_merged = options->line_art_source ==
+                      GIMP_LINE_ART_SOURCE_SAMPLE_MERGED;
+      break;
+    }
+
+  return gimp_image_coords_in_active_pickable (image, coords,
+                                               shell->show_all, sample_merged,
+                                               TRUE);
+}
+
+static void
+gimp_bucket_fill_tool_start (GimpBucketFillTool *tool,
+                             const GimpCoords   *coords,
+                             GimpDisplay        *display)
+{
+  GimpBucketFillOptions *options  = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  GimpContext           *context  = GIMP_CONTEXT (options);
+  GimpImage             *image    = gimp_display_get_image (display);
+  GimpDrawable          *drawable = gimp_image_get_active_drawable (image);
+
+  g_return_if_fail (! tool->priv->filter);
+
+  gimp_line_art_freeze (tool->priv->line_art);
+
+  GIMP_TOOL (tool)->display  = display;
+  GIMP_TOOL (tool)->drawable = drawable;
+
+  gimp_bucket_fill_tool_create_graph (tool);
+
+  tool->priv->filter = gimp_drawable_filter_new (drawable, _("Bucket fill"),
+                                                 tool->priv->graph,
+                                                 GIMP_ICON_TOOL_BUCKET_FILL);
+
+  gimp_drawable_filter_set_region (tool->priv->filter,
+                                   GIMP_FILTER_REGION_DRAWABLE);
+
+  /* We only set these here, and don't need to update it since we assume
+   * the settings can't change while the fill started.
+   */
+  gimp_drawable_filter_set_mode (tool->priv->filter,
+                                 gimp_context_get_paint_mode (context),
+                                 GIMP_LAYER_COLOR_SPACE_AUTO,
+                                 GIMP_LAYER_COLOR_SPACE_AUTO,
+                                 gimp_layer_mode_get_paint_composite_mode (gimp_context_get_paint_mode (context)));
+  gimp_drawable_filter_set_opacity (tool->priv->filter,
+                                    gimp_context_get_opacity (context));
+
+  g_signal_connect (tool->priv->filter, "flush",
+                    G_CALLBACK (gimp_bucket_fill_tool_filter_flush),
+                    tool);
+}
+
+static void
+gimp_bucket_fill_tool_preview (GimpBucketFillTool *tool,
+                               const GimpCoords   *coords,
+                               GimpDisplay        *display,
+                               GimpFillOptions    *fill_options)
+{
+  GimpBucketFillOptions *options  = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  GimpDisplayShell      *shell    = gimp_display_get_shell (display);
+  GimpImage             *image    = gimp_display_get_image (display);
+  GimpDrawable          *drawable = gimp_image_get_active_drawable (image);
+
+  if (tool->priv->filter)
+    {
+      GeglBuffer *fill     = NULL;
+      gdouble     x        = coords->x;
+      gdouble     y        = coords->y;
+
+      if (options->fill_area == GIMP_BUCKET_FILL_SIMILAR_COLORS)
+        {
+          if (! options->sample_merged)
+            {
+              gint off_x, off_y;
+
+              gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
+
+              x -= (gdouble) off_x;
+              y -= (gdouble) off_y;
+            }
+          fill = gimp_drawable_get_bucket_fill_buffer (drawable,
+                                                       fill_options,
+                                                       options->fill_transparent,
+                                                       options->fill_criterion,
+                                                       options->threshold / 255.0,
+                                                       shell->show_all,
+                                                       options->sample_merged,
+                                                       options->diagonal_neighbors,
+                                                       x, y,
+                                                       &tool->priv->fill_mask,
+                                                       &x, &y, NULL, NULL);
+        }
+      else
+        {
+          gint source_off_x = 0;
+          gint source_off_y = 0;
+
+          if (options->line_art_source != GIMP_LINE_ART_SOURCE_SAMPLE_MERGED)
+            {
+              GimpPickable *input;
+
+              input = gimp_line_art_get_input (tool->priv->line_art);
+              g_return_if_fail (GIMP_IS_ITEM (input));
+
+              gimp_item_get_offset (GIMP_ITEM (input), &source_off_x, &source_off_y);
+
+              x -= (gdouble) source_off_x;
+              y -= (gdouble) source_off_y;
+            }
+          fill = gimp_drawable_get_line_art_fill_buffer (drawable,
+                                                         tool->priv->line_art,
+                                                         fill_options,
+                                                         options->line_art_source ==
+                                                         GIMP_LINE_ART_SOURCE_SAMPLE_MERGED,
+                                                         x, y,
+                                                         &tool->priv->fill_mask,
+                                                         &x, &y, NULL, NULL);
+          if (options->line_art_source != GIMP_LINE_ART_SOURCE_SAMPLE_MERGED)
+            {
+              gint off_x, off_y;
+
+              gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
+
+              x -= (gdouble) off_x - (gdouble) source_off_x;
+              y -= (gdouble) off_y - (gdouble) source_off_y;
+            }
+        }
+      if (fill)
+        {
+          gegl_node_set (tool->priv->fill_node,
+                         "buffer", fill,
+                         NULL);
+          gegl_node_set (tool->priv->offset_node,
+                         "x", x,
+                         "y", y,
+                         NULL);
+          gimp_drawable_filter_apply (tool->priv->filter, NULL);
+          g_object_unref (fill);
+        }
+    }
+}
+
+static void
+gimp_bucket_fill_tool_commit (GimpBucketFillTool *tool)
+{
+  if (tool->priv->filter)
+    {
+      gimp_drawable_filter_commit (tool->priv->filter,
+                                   GIMP_PROGRESS (tool), FALSE);
+      gimp_image_flush (gimp_display_get_image (GIMP_TOOL (tool)->display));
+    }
+}
+
+static void
+gimp_bucket_fill_tool_halt (GimpBucketFillTool *tool)
+{
+  if (tool->priv->graph)
+    {
+      g_clear_object (&tool->priv->graph);
+      tool->priv->fill_node   = NULL;
+      tool->priv->offset_node = NULL;
+    }
+
+  if (tool->priv->filter)
+    {
+      gimp_drawable_filter_abort (tool->priv->filter);
+      g_clear_object (&tool->priv->filter);
+    }
+
+  g_clear_object (&tool->priv->fill_mask);
+
+  if (gimp_line_art_is_frozen (tool->priv->line_art))
+    gimp_line_art_thaw (tool->priv->line_art);
+
+  GIMP_TOOL (tool)->display  = NULL;
+  GIMP_TOOL (tool)->drawable = NULL;
+}
+
+static void
+gimp_bucket_fill_tool_filter_flush (GimpDrawableFilter *filter,
+                                    GimpTool           *tool)
+{
+  GimpImage *image = gimp_display_get_image (tool->display);
+
+  gimp_projection_flush (gimp_image_get_projection (image));
+}
+
+static void
+gimp_bucket_fill_tool_create_graph (GimpBucketFillTool *tool)
+{
+  GeglNode *graph;
+  GeglNode *output;
+  GeglNode *fill_node;
+  GeglNode *offset_node;
+
+  g_return_if_fail (! tool->priv->graph     &&
+                    ! tool->priv->fill_node &&
+                    ! tool->priv->offset_node);
+
+  graph = gegl_node_new ();
+
+  fill_node = gegl_node_new_child (graph,
+                                   "operation", "gegl:buffer-source",
+                                   NULL);
+  offset_node = gegl_node_new_child (graph,
+                                     "operation", "gegl:translate",
+                                     NULL);
+  output = gegl_node_get_output_proxy (graph, "output");
+  gegl_node_link_many (fill_node, offset_node, output, NULL);
+
+  tool->priv->graph       = graph;
+  tool->priv->fill_node   = fill_node;
+  tool->priv->offset_node = offset_node;
+}
+
+static void
+gimp_bucket_fill_tool_button_press (GimpTool            *tool,
+                                    const GimpCoords    *coords,
+                                    guint32              time,
+                                    GdkModifierType      state,
+                                    GimpButtonPressType  press_type,
+                                    GimpDisplay         *display)
+{
+  GimpBucketFillTool    *bucket_tool = GIMP_BUCKET_FILL_TOOL (tool);
+  GimpBucketFillOptions *options     = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  GimpGuiConfig         *config      = GIMP_GUI_CONFIG (display->gimp->config);
+  GimpImage             *image       = gimp_display_get_image (display);
+  GimpDrawable          *drawable    = gimp_image_get_active_drawable (image);
+
+  if (gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)))
+    {
+      GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
+                                                    press_type, display);
+      return;
+    }
+
+  if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
+    {
+      gimp_tool_message_literal (tool, display,
+                                 _("Cannot modify the pixels of layer groups."));
+      return;
+    }
+
+  if (! gimp_item_is_visible (GIMP_ITEM (drawable)) &&
+      ! config->edit_non_visible)
+    {
+      gimp_tool_message_literal (tool, display,
+                                 _("The active layer is not visible."));
+      return;
+    }
+
+  if (gimp_item_is_content_locked (GIMP_ITEM (drawable)))
+    {
+      gimp_tool_message_literal (tool, display,
+                                 _("The active layer's pixels are locked."));
+      gimp_tools_blink_lock_box (display->gimp, GIMP_ITEM (drawable));
+      return;
+    }
+
+  if (options->fill_area == GIMP_BUCKET_FILL_LINE_ART &&
+      ! gimp_line_art_get_input (bucket_tool->priv->line_art))
+    {
+      gimp_tool_message_literal (tool, display,
+                                 _("No valid line art source selected."));
+      return;
+    }
+
+  if (press_type == GIMP_BUTTON_PRESS_NORMAL &&
+      gimp_bucket_fill_tool_coords_in_active_pickable (bucket_tool,
+                                                       display, coords))
+    {
+      GimpContext     *context  = GIMP_CONTEXT (options);
+      GimpFillOptions *fill_options;
+      GError          *error = NULL;
+
+      fill_options = gimp_fill_options_new (image->gimp, NULL, FALSE);
+
+      if (gimp_fill_options_set_by_fill_mode (fill_options, context,
+                                              options->fill_mode,
+                                              &error))
+        {
+          gimp_fill_options_set_antialias (fill_options, options->antialias);
+          gimp_fill_options_set_feather (fill_options, options->feather,
+                                         options->feather_radius);
+
+          gimp_context_set_opacity (GIMP_CONTEXT (fill_options),
+                                    gimp_context_get_opacity (context));
+          gimp_context_set_paint_mode (GIMP_CONTEXT (fill_options),
+                                       gimp_context_get_paint_mode (context));
+
+          if (options->fill_area == GIMP_BUCKET_FILL_SELECTION)
+            {
+              gimp_drawable_edit_fill (drawable, fill_options, NULL);
+              gimp_image_flush (image);
+            }
+          else /* GIMP_BUCKET_FILL_SIMILAR_COLORS || GIMP_BUCKET_FILL_LINE_ART */
+            {
+              gimp_bucket_fill_tool_start (bucket_tool, coords, display);
+              gimp_bucket_fill_tool_preview (bucket_tool, coords, display,
+                                             fill_options);
+            }
+        }
+      else
+        {
+          gimp_message_literal (display->gimp, G_OBJECT (display),
+                                GIMP_MESSAGE_WARNING, error->message);
+          g_clear_error (&error);
+        }
+
+      g_object_unref (fill_options);
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
+                                                press_type, display);
+}
+
+static void
+gimp_bucket_fill_tool_motion (GimpTool         *tool,
+                              const GimpCoords *coords,
+                              guint32           time,
+                              GdkModifierType   state,
+                              GimpDisplay      *display)
+{
+  GimpBucketFillTool    *bucket_tool = GIMP_BUCKET_FILL_TOOL (tool);
+  GimpBucketFillOptions *options     = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  GimpImage             *image       = gimp_display_get_image (display);
+
+  GIMP_TOOL_CLASS (parent_class)->motion (tool, coords, time, state, display);
+
+  if (gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)))
+    return;
+
+  if (gimp_bucket_fill_tool_coords_in_active_pickable (bucket_tool,
+                                                       display, coords) &&
+      /* Fill selection only needs to happen once. */
+      options->fill_area != GIMP_BUCKET_FILL_SELECTION)
+    {
+      GimpContext     *context  = GIMP_CONTEXT (options);
+      GimpFillOptions *fill_options;
+      GError          *error = NULL;
+
+      fill_options = gimp_fill_options_new (image->gimp, NULL, FALSE);
+
+      if (gimp_fill_options_set_by_fill_mode (fill_options, context,
+                                              options->fill_mode,
+                                              &error))
+        {
+          gimp_fill_options_set_antialias (fill_options, options->antialias);
+          gimp_fill_options_set_feather (fill_options, options->feather,
+                                         options->feather_radius);
+
+          gimp_context_set_opacity (GIMP_CONTEXT (fill_options),
+                                    gimp_context_get_opacity (context));
+          gimp_context_set_paint_mode (GIMP_CONTEXT (fill_options),
+                                       gimp_context_get_paint_mode (context));
+
+          gimp_bucket_fill_tool_preview (bucket_tool, coords, display,
+                                         fill_options);
+        }
+      else
+        {
+          gimp_message_literal (display->gimp, G_OBJECT (display),
+                                GIMP_MESSAGE_WARNING, error->message);
+          g_clear_error (&error);
+        }
+
+      g_object_unref (fill_options);
+    }
+}
+
+static void
+gimp_bucket_fill_tool_button_release (GimpTool              *tool,
+                                      const GimpCoords      *coords,
+                                      guint32                time,
+                                      GdkModifierType        state,
+                                      GimpButtonReleaseType  release_type,
+                                      GimpDisplay           *display)
+{
+  GimpBucketFillTool    *bucket_tool = GIMP_BUCKET_FILL_TOOL (tool);
+  GimpBucketFillOptions *options = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+
+  if (gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)))
+    {
+      GIMP_TOOL_CLASS (parent_class)->button_release (tool, coords, time,
+                                                      state, release_type,
+                                                      display);
+      return;
+    }
+
+  if (release_type != GIMP_BUTTON_RELEASE_CANCEL)
+    gimp_bucket_fill_tool_commit (bucket_tool);
+
+  if (options->fill_area != GIMP_BUCKET_FILL_SELECTION)
+    gimp_bucket_fill_tool_halt (bucket_tool);
+
+  GIMP_TOOL_CLASS (parent_class)->button_release (tool, coords, time, state,
+                                                  release_type, display);
+}
+
+static void
+gimp_bucket_fill_tool_modifier_key (GimpTool        *tool,
+                                    GdkModifierType  key,
+                                    gboolean         press,
+                                    GdkModifierType  state,
+                                    GimpDisplay     *display)
+{
+  GimpBucketFillOptions *options = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+
+  if (key == GDK_MOD1_MASK)
+    {
+      if (press)
+        {
+          GIMP_BUCKET_FILL_TOOL (tool)->priv->fill_mode = options->fill_mode;
+
+          switch (options->fill_mode)
+            {
+            case GIMP_BUCKET_FILL_FG:
+              g_object_set (options, "fill-mode", GIMP_BUCKET_FILL_BG, NULL);
+              break;
+
+            default:
+              /* GIMP_BUCKET_FILL_BG || GIMP_BUCKET_FILL_PATTERN */
+              g_object_set (options, "fill-mode", GIMP_BUCKET_FILL_FG, NULL);
+              break;
+
+              break;
+            }
+        }
+      else /* release */
+        {
+          g_object_set (options, "fill-mode",
+                        GIMP_BUCKET_FILL_TOOL (tool)->priv->fill_mode,
+                        NULL);
+        }
+    }
+  else if (key == gimp_get_toggle_behavior_mask ())
+    {
+      GimpToolInfo *info = gimp_get_tool_info (display->gimp,
+                                               "gimp-color-picker-tool");
+
+      if (! gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)))
+        {
+          switch (GIMP_COLOR_TOOL (tool)->pick_target)
+            {
+            case GIMP_COLOR_PICK_TARGET_BACKGROUND:
+              gimp_tool_push_status (tool, display,
+                                     _("Click in any image to pick the "
+                                       "background color"));
+              break;
+
+            case GIMP_COLOR_PICK_TARGET_FOREGROUND:
+            default:
+              gimp_tool_push_status (tool, display,
+                                     _("Click in any image to pick the "
+                                       "foreground color"));
+              break;
+            }
+
+          GIMP_TOOL (tool)->display = display;
+          gimp_color_tool_enable (GIMP_COLOR_TOOL (tool),
+                                  GIMP_COLOR_OPTIONS (info->tool_options));
+        }
+      else
+        {
+          gimp_tool_pop_status (tool, display);
+          gimp_color_tool_disable (GIMP_COLOR_TOOL (tool));
+          GIMP_TOOL (tool)->display = NULL;
+        }
+    }
+  else if (key == gimp_get_extend_selection_mask ())
+    {
+      if (press)
+        {
+          GIMP_BUCKET_FILL_TOOL (tool)->priv->fill_area = options->fill_area;
+
+          switch (options->fill_area)
+            {
+            case GIMP_BUCKET_FILL_SIMILAR_COLORS:
+              g_object_set (options,
+                            "fill-area", GIMP_BUCKET_FILL_SELECTION,
+                            NULL);
+              break;
+
+            default:
+              /* GIMP_BUCKET_FILL_SELECTION || GIMP_BUCKET_FILL_LINE_ART */
+              g_object_set (options,
+                            "fill-area", GIMP_BUCKET_FILL_SIMILAR_COLORS,
+                            NULL);
+              break;
+            }
+        }
+      else /* release */
+        {
+          g_object_set (options, "fill-area",
+                        GIMP_BUCKET_FILL_TOOL (tool)->priv->fill_area,
+                        NULL);
+        }
+    }
+}
+
+static void
+gimp_bucket_fill_tool_cursor_update (GimpTool         *tool,
+                                     const GimpCoords *coords,
+                                     GdkModifierType   state,
+                                     GimpDisplay      *display)
+{
+  GimpBucketFillTool    *bucket_tool = GIMP_BUCKET_FILL_TOOL (tool);
+  GimpBucketFillOptions *options     = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  GimpGuiConfig         *config      = GIMP_GUI_CONFIG (display->gimp->config);
+  GimpCursorModifier     modifier    = GIMP_CURSOR_MODIFIER_BAD;
+  GimpImage             *image       = gimp_display_get_image (display);
+
+  if (gimp_bucket_fill_tool_coords_in_active_pickable (bucket_tool,
+                                                       display, coords))
+    {
+      GimpDrawable *drawable = gimp_image_get_active_drawable (image);
+
+      if (! gimp_viewable_get_children (GIMP_VIEWABLE (drawable)) &&
+          ! gimp_item_is_content_locked (GIMP_ITEM (drawable))    &&
+          (gimp_item_is_visible (GIMP_ITEM (drawable)) ||
+           config->edit_non_visible))
+        {
+          switch (options->fill_mode)
+            {
+            case GIMP_BUCKET_FILL_FG:
+              modifier = GIMP_CURSOR_MODIFIER_FOREGROUND;
+              break;
+
+            case GIMP_BUCKET_FILL_BG:
+              modifier = GIMP_CURSOR_MODIFIER_BACKGROUND;
+              break;
+
+            case GIMP_BUCKET_FILL_PATTERN:
+              modifier = GIMP_CURSOR_MODIFIER_PATTERN;
+              break;
+            }
+        }
+    }
+
+  gimp_tool_control_set_cursor_modifier (tool->control, modifier);
+
+  GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
+}
+
+static void
+gimp_bucket_fill_tool_options_notify (GimpTool         *tool,
+                                      GimpToolOptions  *options,
+                                      const GParamSpec *pspec)
+{
+  GimpBucketFillTool    *bucket_tool    = GIMP_BUCKET_FILL_TOOL (tool);
+  GimpBucketFillOptions *bucket_options = GIMP_BUCKET_FILL_OPTIONS (options);
+
+  GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec);
+
+  if (! strcmp (pspec->name, "fill-area"))
+    {
+      /* We want more motion events when the tool is used in a paint tool
+       * fashion. Unfortunately we only set exact mode in line art fill,
+       * because we can't as easily remove events from the similar color
+       * mode just because a point has already been selected  (unless
+       * threshold were 0, but that's an edge case).
+       */
+      gimp_tool_control_set_motion_mode (tool->control,
+                                         bucket_options->fill_area == GIMP_BUCKET_FILL_LINE_ART ?
+                                         GIMP_MOTION_MODE_EXACT : GIMP_MOTION_MODE_COMPRESS);
+
+      gimp_bucket_fill_tool_reset_line_art (bucket_tool);
+    }
+  else if (! strcmp (pspec->name, "fill-mode"))
+    {
+      if (gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)))
+        gimp_tool_pop_status (tool, tool->display);
+
+      switch (bucket_options->fill_mode)
+        {
+        case GIMP_BUCKET_FILL_BG:
+          GIMP_COLOR_TOOL (tool)->pick_target = GIMP_COLOR_PICK_TARGET_BACKGROUND;
+          if (gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)))
+            gimp_tool_push_status (tool, tool->display,
+                                   _("Click in any image to pick the "
+                                     "background color"));
+          break;
+
+        case GIMP_BUCKET_FILL_FG:
+        default:
+          GIMP_COLOR_TOOL (tool)->pick_target = GIMP_COLOR_PICK_TARGET_FOREGROUND;
+          if (gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)))
+            gimp_tool_push_status (tool, tool->display,
+                                   _("Click in any image to pick the "
+                                     "foreground color"));
+          break;
+        }
+    }
+}
+
+static void
+gimp_bucket_fill_tool_line_art_computing_start (GimpBucketFillTool *tool)
+{
+  GimpBucketFillOptions *options = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+
+  gtk_widget_show (options->line_art_busy_box);
+}
+
+static void
+gimp_bucket_fill_tool_line_art_computing_end (GimpBucketFillTool *tool)
+{
+  GimpBucketFillOptions *options = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+
+  gtk_widget_hide (options->line_art_busy_box);
+}
+
+static void
+gimp_bucket_fill_tool_reset_line_art (GimpBucketFillTool *tool)
+{
+  GimpBucketFillOptions *options  = GIMP_BUCKET_FILL_TOOL_GET_OPTIONS (tool);
+  GimpLineArt           *line_art = tool->priv->line_art;
+  GimpDisplayShell      *shell    = NULL;
+  GimpImage             *image    = NULL;
+
+  if (options->fill_area == GIMP_BUCKET_FILL_LINE_ART)
+    {
+      GimpContext *context;
+      GimpDisplay *display;
+
+      context = gimp_get_user_context (GIMP_CONTEXT (options)->gimp);
+      display = gimp_context_get_display (context);
+
+      if (display)
+        {
+          shell = gimp_display_get_shell (display);
+          image = gimp_display_get_image (display);
+        }
+    }
+
+  if (image != tool->priv->line_art_image)
+    {
+      if (tool->priv->line_art_image)
+        {
+          g_signal_handlers_disconnect_by_data (gimp_image_get_layers (tool->priv->line_art_image), tool);
+          g_signal_handlers_disconnect_by_data (tool->priv->line_art_image, tool);
+        }
+
+      tool->priv->line_art_image = image;
+
+      if (image)
+        {
+          g_signal_connect_swapped (image, "active-layer-changed",
+                                    G_CALLBACK (gimp_bucket_fill_tool_reset_line_art),
+                                    tool);
+          g_signal_connect_swapped (image, "active-channel-changed",
+                                    G_CALLBACK (gimp_bucket_fill_tool_reset_line_art),
+                                    tool);
+
+          g_signal_connect_swapped (gimp_image_get_layers (image), "add",
+                                    G_CALLBACK (gimp_bucket_fill_tool_reset_line_art),
+                                    tool);
+          g_signal_connect_swapped (gimp_image_get_layers (image), "remove",
+                                    G_CALLBACK (gimp_bucket_fill_tool_reset_line_art),
+                                    tool);
+          g_signal_connect_swapped (gimp_image_get_layers (image), "reorder",
+                                    G_CALLBACK (gimp_bucket_fill_tool_reset_line_art),
+                                    tool);
+        }
+    }
+
+  if (shell != tool->priv->line_art_shell)
+    {
+      if (tool->priv->line_art_shell)
+        {
+          g_signal_handlers_disconnect_by_func (
+            tool->priv->line_art_shell,
+            gimp_bucket_fill_tool_reset_line_art,
+            tool);
+        }
+
+      tool->priv->line_art_shell = shell;
+
+      if (shell)
+        {
+          g_signal_connect_swapped (shell, "notify::show-all",
+                                    G_CALLBACK (gimp_bucket_fill_tool_reset_line_art),
+                                    tool);
+        }
+    }
+
+  if (image)
+    {
+      GimpDrawable *drawable = gimp_image_get_active_drawable (image);
+
+      if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
+        drawable = NULL;
+
+      if (options->line_art_source == GIMP_LINE_ART_SOURCE_SAMPLE_MERGED)
+        {
+          GimpImageProxy *image_proxy = gimp_image_proxy_new (image);
+
+          gimp_image_proxy_set_show_all (image_proxy, shell->show_all);
+
+          gimp_line_art_set_input (line_art, GIMP_PICKABLE (image_proxy));
+
+          g_object_unref (image_proxy);
+        }
+      else if (drawable)
+        {
+          GimpItem      *parent;
+          GimpContainer *container;
+          GimpObject    *neighbour = NULL;
+          GimpPickable  *source    = NULL;
+          gint           index;
+
+          parent = gimp_item_get_parent (GIMP_ITEM (drawable));
+          if (parent)
+            container = gimp_viewable_get_children (GIMP_VIEWABLE (parent));
+          else
+            container = gimp_image_get_layers (image);
+
+          index = gimp_item_get_index (GIMP_ITEM (drawable));
+
+          if (options->line_art_source == GIMP_LINE_ART_SOURCE_ACTIVE_LAYER)
+            source = GIMP_PICKABLE (drawable);
+          else if (options->line_art_source == GIMP_LINE_ART_SOURCE_LOWER_LAYER)
+            neighbour = gimp_container_get_child_by_index (container, index + 1);
+          else if (options->line_art_source == GIMP_LINE_ART_SOURCE_UPPER_LAYER)
+            neighbour = gimp_container_get_child_by_index (container, index - 1);
+
+          source = neighbour ? GIMP_PICKABLE (neighbour) : source;
+          gimp_line_art_set_input (line_art, source);
+        }
+      else
+        {
+          gimp_line_art_set_input (line_art, NULL);
+        }
+    }
+  else
+    {
+      gimp_line_art_set_input (line_art, NULL);
+    }
+}