Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 975 insertions, 0 deletions

diff --git a/app/actions/context-commands.c b/app/actions/context-commands.c
new file mode 100644
index 0000000..61d9e90
--- /dev/null
+++ b/app/actions/context-commands.c
@@ -0,0 +1,975 @@
+/* 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 <string.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpcolor/gimpcolor.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "actions-types.h"
+
+#include "operations/layer-modes/gimp-layer-modes.h"
+
+#include "core/gimp.h"
+#include "core/gimpbrushgenerated.h"
+#include "core/gimpcontext.h"
+#include "core/gimpdatafactory.h"
+#include "core/gimplist.h"
+#include "core/gimptoolinfo.h"
+
+#include "paint/gimppaintoptions.h"
+
+#include "widgets/gimpdialogfactory.h"
+#include "widgets/gimpsessioninfo.h"
+#include "widgets/gimppaletteeditor.h"
+#include "widgets/gimpcolormapeditor.h"
+
+#include "actions.h"
+#include "context-commands.h"
+
+#include "gimp-intl.h"
+
+
+/*  local function prototypes  */
+
+static void     context_select_object    (GimpActionSelectType  select_type,
+                                          GimpContext          *context,
+                                          GimpContainer        *container);
+static gint     context_paint_mode_index (GimpLayerMode         paint_mode,
+                                          const GimpLayerMode  *modes,
+                                          gint                  n_modes);
+
+static void     context_select_color     (GimpActionSelectType  select_type,
+                                          GimpRGB              *color,
+                                          gboolean              use_colormap,
+                                          gboolean              use_palette);
+
+static gint     context_get_color_index  (gboolean              use_colormap,
+                                          gboolean              use_palette,
+                                          const GimpRGB        *color);
+static gint     context_max_color_index  (gboolean              use_colormap,
+                                          gboolean              use_palette);
+static gboolean context_set_color_index  (gint                  index,
+                                          gboolean              use_colormap,
+                                          gboolean              use_palette,
+                                          GimpRGB              *color);
+
+static GimpPaletteEditor  * context_get_palette_editor  (void);
+static GimpColormapEditor * context_get_colormap_editor (void);
+
+
+/*  public functions  */
+
+void
+context_colors_default_cmd_callback (GimpAction *action,
+                                     GVariant   *value,
+                                     gpointer    data)
+{
+  GimpContext *context;
+  return_if_no_context (context, data);
+
+  gimp_context_set_default_colors (context);
+}
+
+void
+context_colors_swap_cmd_callback (GimpAction *action,
+                                  GVariant   *value,
+                                  gpointer    data)
+{
+  GimpContext *context;
+  return_if_no_context (context, data);
+
+  gimp_context_swap_colors (context);
+}
+
+#define SELECT_COLOR_CMD_CALLBACK(name, fgbg, use_colormap, use_palette) \
+void \
+context_##name##_##fgbg##ground_cmd_callback (GimpAction *action, \
+                                              GVariant   *value, \
+                                              gpointer    data) \
+{ \
+  GimpContext          *context; \
+  GimpRGB               color; \
+  GimpActionSelectType  select_type; \
+  return_if_no_context (context, data); \
+  \
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value); \
+  \
+  gimp_context_get_##fgbg##ground (context, &color); \
+  context_select_color (select_type, &color, \
+                        use_colormap, use_palette); \
+  gimp_context_set_##fgbg##ground (context, &color); \
+}
+
+SELECT_COLOR_CMD_CALLBACK (palette,  fore, FALSE, TRUE)
+SELECT_COLOR_CMD_CALLBACK (palette,  back, FALSE, TRUE)
+SELECT_COLOR_CMD_CALLBACK (colormap, fore, TRUE,  FALSE)
+SELECT_COLOR_CMD_CALLBACK (colormap, back, TRUE,  FALSE)
+SELECT_COLOR_CMD_CALLBACK (swatch,   fore, TRUE,  TRUE)
+SELECT_COLOR_CMD_CALLBACK (swatch,   back, TRUE,  TRUE)
+
+void
+context_foreground_red_cmd_callback (GimpAction *action,
+                                     GVariant   *value,
+                                     gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_foreground (context, &color);
+  color.r = action_select_value (select_type,
+                                 color.r,
+                                 0.0, 1.0, 1.0,
+                                 1.0 / 255.0, 0.01, 0.1, 0.0, FALSE);
+  gimp_context_set_foreground (context, &color);
+}
+
+void
+context_foreground_green_cmd_callback (GimpAction *action,
+                                       GVariant   *value,
+                                       gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_foreground (context, &color);
+  color.g = action_select_value (select_type,
+                                 color.g,
+                                 0.0, 1.0, 1.0,
+                                 1.0 / 255.0, 0.01, 0.1, 0.0, FALSE);
+  gimp_context_set_foreground (context, &color);
+}
+
+void
+context_foreground_blue_cmd_callback (GimpAction *action,
+                                      GVariant   *value,
+                                      gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_foreground (context, &color);
+  color.b = action_select_value (select_type,
+                                 color.b,
+                                 0.0, 1.0, 1.0,
+                                 1.0 / 255.0, 0.01, 0.1, 0.0, FALSE);
+  gimp_context_set_foreground (context, &color);
+}
+
+void
+context_background_red_cmd_callback (GimpAction *action,
+                                     GVariant   *value,
+                                     gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_background (context, &color);
+  color.r = action_select_value (select_type,
+                                 color.r,
+                                 0.0, 1.0, 1.0,
+                                 1.0 / 255.0, 0.01, 0.1, 0.0, FALSE);
+  gimp_context_set_background (context, &color);
+}
+
+void
+context_background_green_cmd_callback (GimpAction *action,
+                                       GVariant   *value,
+                                       gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_background (context, &color);
+  color.g = action_select_value (select_type,
+                                 color.g,
+                                 0.0, 1.0, 1.0,
+                                 1.0 / 255.0, 0.01, 0.1, 0.0, FALSE);
+  gimp_context_set_background (context, &color);
+}
+
+void
+context_background_blue_cmd_callback (GimpAction *action,
+                                      GVariant   *value,
+                                      gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_background (context, &color);
+  color.b = action_select_value (select_type,
+                                 color.b,
+                                 0.0, 1.0, 1.0,
+                                 1.0 / 255.0, 0.01, 0.1, 0.0, FALSE);
+  gimp_context_set_background (context, &color);
+}
+
+void
+context_foreground_hue_cmd_callback (GimpAction *action,
+                                     GVariant   *value,
+                                     gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpHSV               hsv;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_foreground (context, &color);
+  gimp_rgb_to_hsv (&color, &hsv);
+  hsv.h = action_select_value (select_type,
+                               hsv.h,
+                               0.0, 1.0, 1.0,
+                               1.0 / 360.0, 0.01, 0.1, 0.0, FALSE);
+  gimp_hsv_to_rgb (&hsv, &color);
+  gimp_context_set_foreground (context, &color);
+}
+
+void
+context_foreground_saturation_cmd_callback (GimpAction *action,
+                                            GVariant   *value,
+                                            gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpHSV               hsv;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_foreground (context, &color);
+  gimp_rgb_to_hsv (&color, &hsv);
+  hsv.s = action_select_value (select_type,
+                               hsv.s,
+                               0.0, 1.0, 1.0,
+                               0.01, 0.01, 0.1, 0.0, FALSE);
+  gimp_hsv_to_rgb (&hsv, &color);
+  gimp_context_set_foreground (context, &color);
+}
+
+void
+context_foreground_value_cmd_callback (GimpAction *action,
+                                       GVariant   *value,
+                                       gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpHSV               hsv;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_foreground (context, &color);
+  gimp_rgb_to_hsv (&color, &hsv);
+  hsv.v = action_select_value (select_type,
+                               hsv.v,
+                               0.0, 1.0, 1.0,
+                               0.01, 0.01, 0.1, 0.0, FALSE);
+  gimp_hsv_to_rgb (&hsv, &color);
+  gimp_context_set_foreground (context, &color);
+}
+
+void
+context_background_hue_cmd_callback (GimpAction *action,
+                                     GVariant   *value,
+                                     gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpHSV               hsv;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_background (context, &color);
+  gimp_rgb_to_hsv (&color, &hsv);
+  hsv.h = action_select_value (select_type,
+                               hsv.h,
+                               0.0, 1.0, 1.0,
+                               1.0 / 360.0, 0.01, 0.1, 0.0, FALSE);
+  gimp_hsv_to_rgb (&hsv, &color);
+  gimp_context_set_background (context, &color);
+}
+
+void
+context_background_saturation_cmd_callback (GimpAction *action,
+                                            GVariant   *value,
+                                            gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpHSV               hsv;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_background (context, &color);
+  gimp_rgb_to_hsv (&color, &hsv);
+  hsv.s = action_select_value (select_type,
+                               hsv.s,
+                               0.0, 1.0, 1.0,
+                               0.01, 0.01, 0.1, 0.0, FALSE);
+  gimp_hsv_to_rgb (&hsv, &color);
+  gimp_context_set_background (context, &color);
+}
+
+void
+context_background_value_cmd_callback (GimpAction *action,
+                                       GVariant   *value,
+                                       gpointer    data)
+{
+  GimpContext          *context;
+  GimpRGB               color;
+  GimpHSV               hsv;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  gimp_context_get_background (context, &color);
+  gimp_rgb_to_hsv (&color, &hsv);
+  hsv.v = action_select_value (select_type,
+                               hsv.v,
+                               0.0, 1.0, 1.0,
+                               0.01, 0.01, 0.1, 0.0, FALSE);
+  gimp_hsv_to_rgb (&hsv, &color);
+  gimp_context_set_background (context, &color);
+}
+
+void
+context_opacity_cmd_callback (GimpAction *action,
+                              GVariant   *value,
+                              gpointer    data)
+{
+  GimpContext          *context;
+  GimpToolInfo         *tool_info;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  tool_info = gimp_context_get_tool (context);
+
+  if (tool_info && GIMP_IS_TOOL_OPTIONS (tool_info->tool_options))
+    {
+      action_select_property (select_type,
+                              action_data_get_display (data),
+                              G_OBJECT (tool_info->tool_options),
+                              "opacity",
+                              1.0 / 255.0, 0.01, 0.1, 0.1, FALSE);
+    }
+}
+
+void
+context_paint_mode_cmd_callback (GimpAction *action,
+                                 GVariant   *value,
+                                 gpointer    data)
+{
+  GimpContext          *context;
+  GimpToolInfo         *tool_info;
+  GimpLayerMode        *modes;
+  gint                  n_modes;
+  GimpLayerMode         paint_mode;
+  gint                  index;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  paint_mode = gimp_context_get_paint_mode (context);
+
+  modes = gimp_layer_mode_get_context_array (paint_mode,
+                                             GIMP_LAYER_MODE_CONTEXT_PAINT,
+                                             &n_modes);
+  index = context_paint_mode_index (paint_mode, modes, n_modes);
+  index = action_select_value (select_type,
+                               index, 0, n_modes - 1, 0,
+                               0.0, 1.0, 1.0, 0.0, FALSE);
+  paint_mode = modes[index];
+  g_free (modes);
+
+  gimp_context_set_paint_mode (context, paint_mode);
+
+  tool_info = gimp_context_get_tool (context);
+
+  if (tool_info && GIMP_IS_TOOL_OPTIONS (tool_info->tool_options))
+    {
+      GimpDisplay *display;
+      const char  *value_desc;
+
+      gimp_enum_get_value (GIMP_TYPE_LAYER_MODE, paint_mode,
+                           NULL, NULL, &value_desc, NULL);
+
+      display = action_data_get_display (data);
+
+      if (value_desc && display)
+        {
+          action_message (display, G_OBJECT (tool_info->tool_options),
+                          _("Paint Mode: %s"), value_desc);
+        }
+    }
+}
+
+void
+context_tool_select_cmd_callback (GimpAction *action,
+                                  GVariant   *value,
+                                  gpointer    data)
+{
+  GimpContext          *context;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  context_select_object (select_type,
+                         context, context->gimp->tool_info_list);
+}
+
+void
+context_brush_select_cmd_callback (GimpAction *action,
+                                   GVariant   *value,
+                                   gpointer    data)
+{
+  GimpContext          *context;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  context_select_object (select_type,
+                         context,
+                         gimp_data_factory_get_container (context->gimp->brush_factory));
+}
+
+void
+context_pattern_select_cmd_callback (GimpAction *action,
+                                     GVariant   *value,
+                                     gpointer    data)
+{
+  GimpContext          *context;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  context_select_object (select_type,
+                         context,
+                         gimp_data_factory_get_container (context->gimp->pattern_factory));
+}
+
+void
+context_palette_select_cmd_callback (GimpAction *action,
+                                     GVariant   *value,
+                                     gpointer    data)
+{
+  GimpContext          *context;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  context_select_object (select_type,
+                         context,
+                         gimp_data_factory_get_container (context->gimp->palette_factory));
+}
+
+void
+context_gradient_select_cmd_callback (GimpAction *action,
+                                      GVariant   *value,
+                                      gpointer    data)
+{
+  GimpContext          *context;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  context_select_object (select_type,
+                         context,
+                         gimp_data_factory_get_container (context->gimp->gradient_factory));
+}
+
+void
+context_font_select_cmd_callback (GimpAction *action,
+                                  GVariant   *value,
+                                  gpointer    data)
+{
+  GimpContext          *context;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  context_select_object (select_type,
+                         context,
+                         gimp_data_factory_get_container (context->gimp->font_factory));
+}
+
+void
+context_brush_spacing_cmd_callback (GimpAction *action,
+                                    GVariant   *value,
+                                    gpointer    data)
+{
+  GimpContext          *context;
+  GimpBrush            *brush;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  brush = gimp_context_get_brush (context);
+
+  if (GIMP_IS_BRUSH (brush) && gimp_data_is_writable (GIMP_DATA (brush)))
+    {
+      action_select_property (select_type,
+                              action_data_get_display (data),
+                              G_OBJECT (brush),
+                              "spacing",
+                              1.0, 5.0, 20.0, 0.1, FALSE);
+    }
+}
+
+void
+context_brush_shape_cmd_callback (GimpAction *action,
+                                  GVariant   *value,
+                                  gpointer    data)
+{
+  GimpContext             *context;
+  GimpBrush               *brush;
+  GimpBrushGeneratedShape  shape;
+  return_if_no_context (context, data);
+
+  shape = (GimpBrushGeneratedShape) g_variant_get_int32 (value);
+
+  brush = gimp_context_get_brush (context);
+
+  if (GIMP_IS_BRUSH_GENERATED (brush) &&
+      gimp_data_is_writable (GIMP_DATA (brush)))
+    {
+      GimpBrushGenerated *generated = GIMP_BRUSH_GENERATED (brush);
+      GimpDisplay        *display;
+      const char         *value_desc;
+
+      gimp_brush_generated_set_shape (generated, shape);
+
+      gimp_enum_get_value (GIMP_TYPE_BRUSH_GENERATED_SHAPE, shape,
+                           NULL, NULL, &value_desc, NULL);
+      display = action_data_get_display (data);
+
+      if (value_desc && display)
+        {
+          action_message (display, G_OBJECT (brush),
+                          _("Brush Shape: %s"), value_desc);
+        }
+    }
+}
+
+void
+context_brush_radius_cmd_callback (GimpAction *action,
+                                   GVariant   *value,
+                                   gpointer    data)
+{
+  GimpContext          *context;
+  GimpBrush            *brush;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  brush = gimp_context_get_brush (context);
+
+  if (GIMP_IS_BRUSH_GENERATED (brush) &&
+      gimp_data_is_writable (GIMP_DATA (brush)))
+    {
+      GimpBrushGenerated *generated = GIMP_BRUSH_GENERATED (brush);
+      GimpDisplay        *display;
+      gdouble             radius;
+      gdouble             min_radius;
+
+      radius = gimp_brush_generated_get_radius (generated);
+
+      /* If the user uses a high precision radius adjustment command
+       * then we allow a minimum radius of 0.1 px, otherwise we set the
+       * minimum radius to 1.0 px and adjust the radius to 1.0 px if it
+       * is less than 1.0 px. This prevents irritating 0.1, 1.1, 2.1 etc
+       * radius sequences when 1.0 px steps are used.
+       */
+      switch (select_type)
+        {
+        case GIMP_ACTION_SELECT_SMALL_PREVIOUS:
+        case GIMP_ACTION_SELECT_SMALL_NEXT:
+        case GIMP_ACTION_SELECT_PERCENT_PREVIOUS:
+        case GIMP_ACTION_SELECT_PERCENT_NEXT:
+          min_radius = 0.1;
+          break;
+
+        default:
+          min_radius = 1.0;
+
+          if (radius < 1.0)
+            radius = 1.0;
+          break;
+        }
+
+      radius = action_select_value (select_type,
+                                    radius,
+                                    min_radius, 4000.0, min_radius,
+                                    0.1, 1.0, 10.0, 0.05, FALSE);
+      gimp_brush_generated_set_radius (generated, radius);
+
+      display = action_data_get_display (data);
+
+      if (display)
+        {
+          action_message (action_data_get_display (data), G_OBJECT (brush),
+                          _("Brush Radius: %2.2f"), radius);
+        }
+    }
+}
+
+void
+context_brush_spikes_cmd_callback (GimpAction *action,
+                                   GVariant   *value,
+                                   gpointer    data)
+{
+  GimpContext          *context;
+  GimpBrush            *brush;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  brush = gimp_context_get_brush (context);
+
+  if (GIMP_IS_BRUSH_GENERATED (brush) &&
+      gimp_data_is_writable (GIMP_DATA (brush)))
+    {
+      action_select_property (select_type,
+                              action_data_get_display (data),
+                              G_OBJECT (brush),
+                              "spikes",
+                              0.0, 1.0, 4.0, 0.1, FALSE);
+    }
+}
+
+void
+context_brush_hardness_cmd_callback (GimpAction *action,
+                                     GVariant   *value,
+                                     gpointer    data)
+{
+  GimpContext          *context;
+  GimpBrush            *brush;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  brush = gimp_context_get_brush (context);
+
+  if (GIMP_IS_BRUSH_GENERATED (brush) &&
+      gimp_data_is_writable (GIMP_DATA (brush)))
+    {
+      action_select_property (select_type,
+                              action_data_get_display (data),
+                              G_OBJECT (brush),
+                              "hardness",
+                              0.001, 0.01, 0.1, 0.1, FALSE);
+    }
+}
+
+void
+context_brush_aspect_cmd_callback (GimpAction *action,
+                                   GVariant   *value,
+                                   gpointer    data)
+{
+  GimpContext          *context;
+  GimpBrush            *brush;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  brush = gimp_context_get_brush (context);
+
+  if (GIMP_IS_BRUSH_GENERATED (brush) &&
+      gimp_data_is_writable (GIMP_DATA (brush)))
+    {
+      action_select_property (select_type,
+                              action_data_get_display (data),
+                              G_OBJECT (brush),
+                              "aspect-ratio",
+                              0.1, 1.0, 4.0, 0.1, FALSE);
+    }
+}
+
+void
+context_brush_angle_cmd_callback (GimpAction *action,
+                                  GVariant   *value,
+                                  gpointer    data)
+{
+  GimpContext          *context;
+  GimpBrush            *brush;
+  GimpActionSelectType  select_type;
+  return_if_no_context (context, data);
+
+  select_type = (GimpActionSelectType) g_variant_get_int32 (value);
+
+  brush = gimp_context_get_brush (context);
+
+  if (GIMP_IS_BRUSH_GENERATED (brush) &&
+      gimp_data_is_writable (GIMP_DATA (brush)))
+    {
+      GimpBrushGenerated *generated = GIMP_BRUSH_GENERATED (brush);
+      GimpDisplay        *display;
+      gdouble             angle;
+
+      angle = gimp_brush_generated_get_angle (generated);
+
+      if (select_type == GIMP_ACTION_SELECT_FIRST)
+        angle = 0.0;
+      else if (select_type == GIMP_ACTION_SELECT_LAST)
+        angle = 90.0;
+      else
+        angle = action_select_value (select_type,
+                                     angle,
+                                     0.0, 180.0, 0.0,
+                                     0.1, 1.0, 15.0, 0.1, TRUE);
+
+      gimp_brush_generated_set_angle (generated, angle);
+
+      display = action_data_get_display (data);
+
+      if (display)
+        {
+          action_message (action_data_get_display (data), G_OBJECT (brush),
+                          _("Brush Angle: %2.2f"), angle);
+        }
+    }
+}
+
+
+/*  private functions  */
+
+static void
+context_select_object (GimpActionSelectType  select_type,
+                       GimpContext          *context,
+                       GimpContainer        *container)
+{
+  GimpObject *current;
+
+  current =
+    gimp_context_get_by_type (context,
+                              gimp_container_get_children_type (container));
+
+  current = action_select_object (select_type, container, current);
+
+  if (current)
+    gimp_context_set_by_type (context,
+                              gimp_container_get_children_type (container),
+                              current);
+}
+
+static gint
+context_paint_mode_index (GimpLayerMode        paint_mode,
+                          const GimpLayerMode *modes,
+                          gint                 n_modes)
+{
+  gint i = 0;
+
+  while (i < (n_modes - 1) && modes[i] != paint_mode)
+    i++;
+
+  return i;
+}
+
+static void
+context_select_color (GimpActionSelectType  select_type,
+                      GimpRGB              *color,
+                      gboolean              use_colormap,
+                      gboolean              use_palette)
+{
+  gint index;
+  gint max;
+
+  index = context_get_color_index (use_colormap, use_palette, color);
+  max   = context_max_color_index (use_colormap, use_palette);
+
+  index = action_select_value (select_type,
+                               index,
+                               0, max, 0,
+                               0, 1, 4, 0, FALSE);
+
+  context_set_color_index (index, use_colormap, use_palette, color);
+}
+
+static gint
+context_get_color_index (gboolean       use_colormap,
+                         gboolean       use_palette,
+                         const GimpRGB *color)
+{
+  if (use_colormap)
+    {
+      GimpColormapEditor *editor = context_get_colormap_editor ();
+
+      if (editor)
+        {
+          gint index = gimp_colormap_editor_get_index (editor, color);
+
+          if (index != -1)
+            return index;
+        }
+    }
+
+  if (use_palette)
+    {
+      GimpPaletteEditor *editor = context_get_palette_editor ();
+
+      if (editor)
+        {
+          gint index = gimp_palette_editor_get_index (editor, color);
+
+          if (index != -1)
+            return index;
+        }
+    }
+
+  return 0;
+}
+
+static gint
+context_max_color_index (gboolean use_colormap,
+                         gboolean use_palette)
+{
+  if (use_colormap)
+    {
+      GimpColormapEditor *editor = context_get_colormap_editor ();
+
+      if (editor)
+        {
+          gint index = gimp_colormap_editor_max_index (editor);
+
+          if (index != -1)
+            return index;
+        }
+    }
+
+  if (use_palette)
+    {
+      GimpPaletteEditor *editor = context_get_palette_editor ();
+
+      if (editor)
+        {
+          gint index = gimp_palette_editor_max_index (editor);
+
+          if (index != -1)
+            return index;
+        }
+    }
+
+  return 0;
+}
+
+static gboolean
+context_set_color_index (gint      index,
+                         gboolean  use_colormap,
+                         gboolean  use_palette,
+                         GimpRGB  *color)
+{
+  if (use_colormap)
+    {
+      GimpColormapEditor *editor = context_get_colormap_editor ();
+
+      if (editor && gimp_colormap_editor_set_index (editor, index, color))
+        return TRUE;
+    }
+
+  if (use_palette)
+    {
+      GimpPaletteEditor *editor = context_get_palette_editor ();
+
+      if (editor && gimp_palette_editor_set_index (editor, index, color))
+        return TRUE;
+    }
+
+  return FALSE;
+}
+
+static GimpPaletteEditor *
+context_get_palette_editor (void)
+{
+  GtkWidget *widget;
+
+  g_return_val_if_fail (GIMP_IS_DIALOG_FACTORY (gimp_dialog_factory_get_singleton ()), NULL);
+
+  widget = gimp_dialog_factory_find_widget (gimp_dialog_factory_get_singleton (),
+                                            "gimp-palette-editor");
+  if (widget)
+    return GIMP_PALETTE_EDITOR (gtk_bin_get_child (GTK_BIN (widget)));
+
+  return NULL;
+}
+
+static GimpColormapEditor *
+context_get_colormap_editor (void)
+{
+  GtkWidget *widget;
+
+  g_return_val_if_fail (GIMP_IS_DIALOG_FACTORY (gimp_dialog_factory_get_singleton ()), NULL);
+
+  widget = gimp_dialog_factory_find_widget (gimp_dialog_factory_get_singleton (),
+                                            "gimp-indexed-palette");
+  if (widget)
+    return GIMP_COLORMAP_EDITOR (gtk_bin_get_child (GTK_BIN (widget)));
+
+  return NULL;
+}