Adding upstream version 2.10.34.upstream/2.10.34upstream

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

1 files changed, 697 insertions, 0 deletions

diff --git a/libgimpwidgets/gimpcolorselection.c b/libgimpwidgets/gimpcolorselection.c
new file mode 100644
index 0000000..a7a9838
--- /dev/null
+++ b/libgimpwidgets/gimpcolorselection.c
@@ -0,0 +1,697 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpcolorselection.c
+ * Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpcolor/gimpcolor.h"
+#include "libgimpconfig/gimpconfig.h"
+
+#include "gimpwidgetstypes.h"
+
+#include "gimpcolorarea.h"
+#include "gimpcolornotebook.h"
+#include "gimpcolorscales.h"
+#include "gimpcolorselect.h"
+#include "gimpcolorselection.h"
+#include "gimphelpui.h"
+#include "gimpicons.h"
+#include "gimpwidgets.h"
+#include "gimpwidgets-private.h"
+
+#include "gimpwidgetsmarshal.h"
+
+#include "libgimp/libgimp-intl.h"
+
+
+/**
+ * SECTION: gimpcolorselection
+ * @title: GimpColorSelection
+ * @short_description: Widget for doing a color selection.
+ *
+ * Widget for doing a color selection.
+ **/
+
+
+#define COLOR_AREA_SIZE  20
+
+
+typedef enum
+{
+  UPDATE_NOTEBOOK  = 1 << 0,
+  UPDATE_SCALES    = 1 << 1,
+  UPDATE_ENTRY     = 1 << 2,
+  UPDATE_COLOR     = 1 << 3
+} UpdateType;
+
+#define UPDATE_ALL (UPDATE_NOTEBOOK | \
+                    UPDATE_SCALES   | \
+                    UPDATE_ENTRY    | \
+                    UPDATE_COLOR)
+
+enum
+{
+  COLOR_CHANGED,
+  LAST_SIGNAL
+};
+
+enum
+{
+  PROP_0,
+  PROP_CONFIG
+};
+
+
+static void   gimp_color_selection_set_property      (GObject            *object,
+                                                      guint               property_id,
+                                                      const GValue       *value,
+                                                      GParamSpec         *pspec);
+
+static void   gimp_color_selection_switch_page       (GtkWidget          *widget,
+                                                      gpointer            page,
+                                                      guint               page_num,
+                                                      GimpColorSelection *selection);
+static void   gimp_color_selection_notebook_changed  (GimpColorSelector  *selector,
+                                                      const GimpRGB      *rgb,
+                                                      const GimpHSV      *hsv,
+                                                      GimpColorSelection *selection);
+static void   gimp_color_selection_scales_changed    (GimpColorSelector  *selector,
+                                                      const GimpRGB      *rgb,
+                                                      const GimpHSV      *hsv,
+                                                      GimpColorSelection *selection);
+static void   gimp_color_selection_color_picked      (GtkWidget          *widget,
+                                                      const GimpRGB      *rgb,
+                                                      GimpColorSelection *selection);
+static void   gimp_color_selection_entry_changed     (GimpColorHexEntry  *entry,
+                                                      GimpColorSelection *selection);
+static void   gimp_color_selection_channel_changed   (GimpColorSelector  *selector,
+                                                      GimpColorSelectorChannel channel,
+                                                      GimpColorSelection *selection);
+static void   gimp_color_selection_new_color_changed (GtkWidget          *widget,
+                                                      GimpColorSelection *selection);
+
+static void   gimp_color_selection_update            (GimpColorSelection *selection,
+                                                      UpdateType          update);
+
+
+G_DEFINE_TYPE (GimpColorSelection, gimp_color_selection, GTK_TYPE_BOX)
+
+#define parent_class gimp_color_selection_parent_class
+
+static guint selection_signals[LAST_SIGNAL] = { 0, };
+
+
+static void
+gimp_color_selection_class_init (GimpColorSelectionClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->set_property = gimp_color_selection_set_property;
+
+  klass->color_changed       = NULL;
+
+  g_object_class_install_property (object_class, PROP_CONFIG,
+                                   g_param_spec_object ("config",
+                                                        "Config",
+                                                        "The color config used by this color selection",
+                                                        GIMP_TYPE_COLOR_CONFIG,
+                                                        G_PARAM_WRITABLE));
+
+  selection_signals[COLOR_CHANGED] =
+    g_signal_new ("color-changed",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_FIRST,
+                  G_STRUCT_OFFSET (GimpColorSelectionClass, color_changed),
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+
+}
+
+static void
+gimp_color_selection_init (GimpColorSelection *selection)
+{
+  GtkWidget    *main_hbox;
+  GtkWidget    *hbox;
+  GtkWidget    *vbox;
+  GtkWidget    *frame;
+  GtkWidget    *label;
+  GtkWidget    *entry;
+  GtkWidget    *button;
+  GtkSizeGroup *new_group;
+  GtkSizeGroup *old_group;
+
+  selection->show_alpha = TRUE;
+
+  gtk_orientable_set_orientation (GTK_ORIENTABLE (selection),
+                                  GTK_ORIENTATION_VERTICAL);
+
+  gimp_rgba_set (&selection->rgb, 0.0, 0.0, 0.0, 1.0);
+  gimp_rgb_to_hsv (&selection->rgb, &selection->hsv);
+
+  selection->channel = GIMP_COLOR_SELECTOR_RED;
+
+  main_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  gtk_box_pack_start (GTK_BOX (selection), main_hbox, TRUE, TRUE, 0);
+  gtk_widget_show (main_hbox);
+
+  /*  The left vbox with the notebook  */
+  selection->left_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+  gtk_box_pack_start (GTK_BOX (main_hbox), selection->left_vbox,
+                      TRUE, TRUE, 0);
+  gtk_widget_show (selection->left_vbox);
+
+  if (_gimp_ensure_modules_func)
+    {
+      g_type_class_ref (GIMP_TYPE_COLOR_SELECT);
+      _gimp_ensure_modules_func ();
+    }
+
+  selection->notebook = gimp_color_selector_new (GIMP_TYPE_COLOR_NOTEBOOK,
+                                                 &selection->rgb,
+                                                 &selection->hsv,
+                                                 selection->channel);
+
+  if (_gimp_ensure_modules_func)
+    g_type_class_unref (g_type_class_peek (GIMP_TYPE_COLOR_SELECT));
+
+  gimp_color_selector_set_toggles_visible
+    (GIMP_COLOR_SELECTOR (selection->notebook), FALSE);
+  gtk_box_pack_start (GTK_BOX (selection->left_vbox), selection->notebook,
+                      TRUE, TRUE, 0);
+  gtk_widget_show (selection->notebook);
+
+  g_signal_connect (selection->notebook, "color-changed",
+                    G_CALLBACK (gimp_color_selection_notebook_changed),
+                    selection);
+  g_signal_connect (GIMP_COLOR_NOTEBOOK (selection->notebook)->notebook,
+                    "switch-page",
+                    G_CALLBACK (gimp_color_selection_switch_page),
+                    selection);
+
+  /*  The hbox for the color_areas  */
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  gtk_box_pack_end (GTK_BOX (selection->left_vbox), hbox, FALSE, FALSE, 0);
+  gtk_widget_show (hbox);
+
+  /*  The labels  */
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+  gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
+  gtk_widget_show (vbox);
+
+  label = gtk_label_new (_("Current:"));
+  gtk_label_set_xalign (GTK_LABEL (label), 1.0);
+  gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
+  gtk_widget_show (label);
+
+  new_group = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);
+  gtk_size_group_add_widget (new_group, label);
+  g_object_unref (new_group);
+
+  label = gtk_label_new (_("Old:"));
+  gtk_label_set_xalign (GTK_LABEL (label), 1.0);
+  gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
+  gtk_widget_show (label);
+
+  old_group = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);
+  gtk_size_group_add_widget (old_group, label);
+  g_object_unref (old_group);
+
+  /*  The color areas  */
+  frame = gtk_frame_new (NULL);
+  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+  gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
+  gtk_widget_show (frame);
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+  gtk_container_add (GTK_CONTAINER (frame), vbox);
+  gtk_widget_show (vbox);
+
+  selection->new_color = gimp_color_area_new (&selection->rgb,
+                                              selection->show_alpha ?
+                                              GIMP_COLOR_AREA_SMALL_CHECKS :
+                                              GIMP_COLOR_AREA_FLAT,
+                                              GDK_BUTTON1_MASK |
+                                              GDK_BUTTON2_MASK);
+  gtk_size_group_add_widget (new_group, selection->new_color);
+  gtk_box_pack_start (GTK_BOX (vbox), selection->new_color, FALSE, FALSE, 0);
+  gtk_widget_show (selection->new_color);
+
+  g_signal_connect (selection->new_color, "color-changed",
+                    G_CALLBACK (gimp_color_selection_new_color_changed),
+                    selection);
+
+  selection->old_color = gimp_color_area_new (&selection->rgb,
+                                              selection->show_alpha ?
+                                              GIMP_COLOR_AREA_SMALL_CHECKS :
+                                              GIMP_COLOR_AREA_FLAT,
+                                              GDK_BUTTON1_MASK |
+                                              GDK_BUTTON2_MASK);
+  gtk_drag_dest_unset (selection->old_color);
+  gtk_size_group_add_widget (old_group, selection->old_color);
+  gtk_box_pack_start (GTK_BOX (vbox), selection->old_color, FALSE, FALSE, 0);
+  gtk_widget_show (selection->old_color);
+
+  /*  The right vbox with color scales  */
+  selection->right_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+  gtk_box_pack_start (GTK_BOX (main_hbox), selection->right_vbox,
+                      TRUE, TRUE, 0);
+  gtk_widget_show (selection->right_vbox);
+
+  selection->scales = gimp_color_selector_new (GIMP_TYPE_COLOR_SCALES,
+                                               &selection->rgb,
+                                               &selection->hsv,
+                                               selection->channel);
+  gimp_color_selector_set_toggles_visible
+    (GIMP_COLOR_SELECTOR (selection->scales), TRUE);
+  gimp_color_selector_set_show_alpha (GIMP_COLOR_SELECTOR (selection->scales),
+                                      selection->show_alpha);
+  gtk_box_pack_start (GTK_BOX (selection->right_vbox), selection->scales,
+                      TRUE, TRUE, 0);
+  gtk_widget_show (selection->scales);
+
+  g_signal_connect (selection->scales, "channel-changed",
+                    G_CALLBACK (gimp_color_selection_channel_changed),
+                    selection);
+  g_signal_connect (selection->scales, "color-changed",
+                    G_CALLBACK (gimp_color_selection_scales_changed),
+                    selection);
+
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  gtk_box_pack_start (GTK_BOX (selection->right_vbox), hbox, FALSE, FALSE, 0);
+  gtk_widget_show (hbox);
+
+  /*  The color picker  */
+  button = gimp_pick_button_new ();
+  gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
+  gtk_widget_show (button);
+
+  g_signal_connect (button, "color-picked",
+                    G_CALLBACK (gimp_color_selection_color_picked),
+                    selection);
+
+  /* The hex triplet entry */
+  entry = gimp_color_hex_entry_new ();
+  gtk_box_pack_end (GTK_BOX (hbox), entry, TRUE, TRUE, 0);
+  gtk_widget_show (entry);
+
+  label = gtk_label_new_with_mnemonic (_("HTML _notation:"));
+  gtk_label_set_mnemonic_widget (GTK_LABEL (label), entry);
+  gtk_box_pack_end (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+  gtk_widget_show (label);
+
+  g_object_set_data (G_OBJECT (selection), "color-hex-entry", entry);
+
+  g_signal_connect (entry, "color-changed",
+                    G_CALLBACK (gimp_color_selection_entry_changed),
+                    selection);
+}
+
+static void
+gimp_color_selection_set_property (GObject      *object,
+                                   guint         property_id,
+                                   const GValue *value,
+                                   GParamSpec   *pspec)
+{
+  GimpColorSelection *selection = GIMP_COLOR_SELECTION (object);
+
+  switch (property_id)
+    {
+    case PROP_CONFIG:
+      gimp_color_selection_set_config (selection, g_value_get_object (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+
+/**
+ * gimp_color_selection_new:
+ *
+ * Creates a new #GimpColorSelection widget.
+ *
+ * Return value: The new #GimpColorSelection widget.
+ **/
+GtkWidget *
+gimp_color_selection_new (void)
+{
+  return g_object_new (GIMP_TYPE_COLOR_SELECTION, NULL);
+}
+
+/**
+ * gimp_color_selection_set_show_alpha:
+ * @selection:  A #GimpColorSelection widget.
+ * @show_alpha: The new @show_alpha setting.
+ *
+ * Sets the @show_alpha property of the @selection widget.
+ **/
+void
+gimp_color_selection_set_show_alpha (GimpColorSelection *selection,
+                                     gboolean            show_alpha)
+{
+  g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
+
+  if (show_alpha != selection->show_alpha)
+    {
+      selection->show_alpha = show_alpha ? TRUE : FALSE;
+
+      gimp_color_selector_set_show_alpha
+        (GIMP_COLOR_SELECTOR (selection->notebook), selection->show_alpha);
+      gimp_color_selector_set_show_alpha
+        (GIMP_COLOR_SELECTOR (selection->scales), selection->show_alpha);
+
+      gimp_color_area_set_type (GIMP_COLOR_AREA (selection->new_color),
+                                selection->show_alpha ?
+                                GIMP_COLOR_AREA_SMALL_CHECKS :
+                                GIMP_COLOR_AREA_FLAT);
+      gimp_color_area_set_type (GIMP_COLOR_AREA (selection->old_color),
+                                selection->show_alpha ?
+                                GIMP_COLOR_AREA_SMALL_CHECKS :
+                                GIMP_COLOR_AREA_FLAT);
+    }
+}
+
+/**
+ * gimp_color_selection_get_show_alpha:
+ * @selection: A #GimpColorSelection widget.
+ *
+ * Returns the @selection's @show_alpha property.
+ *
+ * Return value: #TRUE if the #GimpColorSelection has alpha controls.
+ **/
+gboolean
+gimp_color_selection_get_show_alpha (GimpColorSelection *selection)
+{
+  g_return_val_if_fail (GIMP_IS_COLOR_SELECTION (selection), FALSE);
+
+  return selection->show_alpha;
+}
+
+/**
+ * gimp_color_selection_set_color:
+ * @selection: A #GimpColorSelection widget.
+ * @color:     The @color to set as current color.
+ *
+ * Sets the #GimpColorSelection's current color to the new @color.
+ **/
+void
+gimp_color_selection_set_color (GimpColorSelection *selection,
+                                const GimpRGB      *color)
+{
+  g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
+  g_return_if_fail (color != NULL);
+
+  selection->rgb = *color;
+  gimp_rgb_to_hsv (&selection->rgb, &selection->hsv);
+
+  gimp_color_selection_update (selection, UPDATE_ALL);
+
+  gimp_color_selection_color_changed (selection);
+}
+
+/**
+ * gimp_color_selection_get_color:
+ * @selection: A #GimpColorSelection widget.
+ * @color:     Return location for the @selection's current @color.
+ *
+ * This function returns the #GimpColorSelection's current color.
+ **/
+void
+gimp_color_selection_get_color (GimpColorSelection *selection,
+                                GimpRGB            *color)
+{
+  g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
+  g_return_if_fail (color != NULL);
+
+  *color = selection->rgb;
+}
+
+/**
+ * gimp_color_selection_set_old_color:
+ * @selection: A #GimpColorSelection widget.
+ * @color:     The @color to set as old color.
+ *
+ * Sets the #GimpColorSelection's old color.
+ **/
+void
+gimp_color_selection_set_old_color (GimpColorSelection *selection,
+                                    const GimpRGB      *color)
+{
+  g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
+  g_return_if_fail (color != NULL);
+
+  gimp_color_area_set_color (GIMP_COLOR_AREA (selection->old_color), color);
+}
+
+/**
+ * gimp_color_selection_get_old_color:
+ * @selection: A #GimpColorSelection widget.
+ * @color:     Return location for the @selection's old @color.
+ *
+ * This function returns the #GimpColorSelection's old color.
+ **/
+void
+gimp_color_selection_get_old_color (GimpColorSelection *selection,
+                                    GimpRGB            *color)
+{
+  g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
+  g_return_if_fail (color != NULL);
+
+  gimp_color_area_get_color (GIMP_COLOR_AREA (selection->old_color), color);
+}
+
+/**
+ * gimp_color_selection_reset:
+ * @selection: A #GimpColorSelection widget.
+ *
+ * Sets the #GimpColorSelection's current color to its old color.
+ **/
+void
+gimp_color_selection_reset (GimpColorSelection *selection)
+{
+  GimpRGB color;
+
+  g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
+
+  gimp_color_area_get_color (GIMP_COLOR_AREA (selection->old_color), &color);
+  gimp_color_selection_set_color (selection, &color);
+}
+
+/**
+ * gimp_color_selection_color_changed:
+ * @selection: A #GimpColorSelection widget.
+ *
+ * Emits the "color-changed" signal.
+ **/
+void
+gimp_color_selection_color_changed (GimpColorSelection *selection)
+{
+  g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
+
+  g_signal_emit (selection, selection_signals[COLOR_CHANGED], 0);
+}
+
+/**
+ * gimp_color_selection_set_config:
+ * @selection: A #GimpColorSelection widget.
+ * @config:    A #GimpColorConfig object.
+ *
+ * Sets the color management configuration to use with this color selection.
+ *
+ * Since: 2.4
+ */
+void
+gimp_color_selection_set_config (GimpColorSelection *selection,
+                                 GimpColorConfig    *config)
+{
+  g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
+  g_return_if_fail (config == NULL || GIMP_IS_COLOR_CONFIG (config));
+
+  gimp_color_selector_set_config (GIMP_COLOR_SELECTOR (selection->notebook),
+                                  config);
+  gimp_color_selector_set_config (GIMP_COLOR_SELECTOR (selection->scales),
+                                  config);
+  gimp_color_area_set_color_config (GIMP_COLOR_AREA (selection->old_color),
+                                    config);
+  gimp_color_area_set_color_config (GIMP_COLOR_AREA (selection->new_color),
+                                    config);
+}
+
+/*  private functions  */
+
+static void
+gimp_color_selection_switch_page (GtkWidget          *widget,
+                                  gpointer            page,
+                                  guint               page_num,
+                                  GimpColorSelection *selection)
+{
+  GimpColorNotebook *notebook = GIMP_COLOR_NOTEBOOK (selection->notebook);
+  gboolean           sensitive;
+
+  sensitive =
+    (GIMP_COLOR_SELECTOR_GET_CLASS (notebook->cur_page)->set_channel != NULL);
+
+  gimp_color_selector_set_toggles_sensitive
+    (GIMP_COLOR_SELECTOR (selection->scales), sensitive);
+}
+
+static void
+gimp_color_selection_notebook_changed (GimpColorSelector  *selector,
+                                       const GimpRGB      *rgb,
+                                       const GimpHSV      *hsv,
+                                       GimpColorSelection *selection)
+{
+  selection->hsv = *hsv;
+  selection->rgb = *rgb;
+
+  gimp_color_selection_update (selection,
+                               UPDATE_SCALES | UPDATE_ENTRY | UPDATE_COLOR);
+  gimp_color_selection_color_changed (selection);
+}
+
+static void
+gimp_color_selection_scales_changed (GimpColorSelector  *selector,
+                                     const GimpRGB      *rgb,
+                                     const GimpHSV      *hsv,
+                                     GimpColorSelection *selection)
+{
+  selection->rgb = *rgb;
+  selection->hsv = *hsv;
+
+  gimp_color_selection_update (selection,
+                               UPDATE_ENTRY | UPDATE_NOTEBOOK | UPDATE_COLOR);
+  gimp_color_selection_color_changed (selection);
+}
+
+static void
+gimp_color_selection_color_picked (GtkWidget          *widget,
+                                   const GimpRGB      *rgb,
+                                   GimpColorSelection *selection)
+{
+  gimp_color_selection_set_color (selection, rgb);
+}
+
+static void
+gimp_color_selection_entry_changed (GimpColorHexEntry  *entry,
+                                    GimpColorSelection *selection)
+{
+  gimp_color_hex_entry_get_color (entry, &selection->rgb);
+
+  gimp_rgb_to_hsv (&selection->rgb, &selection->hsv);
+
+  gimp_color_selection_update (selection,
+                               UPDATE_NOTEBOOK | UPDATE_SCALES | UPDATE_COLOR);
+  gimp_color_selection_color_changed (selection);
+}
+
+static void
+gimp_color_selection_channel_changed (GimpColorSelector        *selector,
+                                      GimpColorSelectorChannel  channel,
+                                      GimpColorSelection       *selection)
+{
+  selection->channel = channel;
+
+  gimp_color_selector_set_channel (GIMP_COLOR_SELECTOR (selection->notebook),
+                                   selection->channel);
+}
+
+static void
+gimp_color_selection_new_color_changed (GtkWidget          *widget,
+                                        GimpColorSelection *selection)
+{
+  gimp_color_area_get_color (GIMP_COLOR_AREA (widget), &selection->rgb);
+  gimp_rgb_to_hsv (&selection->rgb, &selection->hsv);
+
+  gimp_color_selection_update (selection,
+                               UPDATE_NOTEBOOK | UPDATE_SCALES | UPDATE_ENTRY);
+  gimp_color_selection_color_changed (selection);
+}
+
+static void
+gimp_color_selection_update (GimpColorSelection *selection,
+                             UpdateType          update)
+{
+  if (update & UPDATE_NOTEBOOK)
+    {
+      g_signal_handlers_block_by_func (selection->notebook,
+                                       gimp_color_selection_notebook_changed,
+                                       selection);
+
+      gimp_color_selector_set_color (GIMP_COLOR_SELECTOR (selection->notebook),
+                                     &selection->rgb,
+                                     &selection->hsv);
+
+      g_signal_handlers_unblock_by_func (selection->notebook,
+                                         gimp_color_selection_notebook_changed,
+                                         selection);
+    }
+
+  if (update & UPDATE_SCALES)
+    {
+      g_signal_handlers_block_by_func (selection->scales,
+                                       gimp_color_selection_scales_changed,
+                                       selection);
+
+      gimp_color_selector_set_color (GIMP_COLOR_SELECTOR (selection->scales),
+                                     &selection->rgb,
+                                     &selection->hsv);
+
+      g_signal_handlers_unblock_by_func (selection->scales,
+                                         gimp_color_selection_scales_changed,
+                                         selection);
+    }
+
+  if (update & UPDATE_ENTRY)
+    {
+      GimpColorHexEntry *entry;
+
+      entry = g_object_get_data (G_OBJECT (selection), "color-hex-entry");
+
+      g_signal_handlers_block_by_func (entry,
+                                       gimp_color_selection_entry_changed,
+                                       selection);
+
+      gimp_color_hex_entry_set_color (entry, &selection->rgb);
+
+      g_signal_handlers_unblock_by_func (entry,
+                                         gimp_color_selection_entry_changed,
+                                         selection);
+    }
+
+  if (update & UPDATE_COLOR)
+    {
+      g_signal_handlers_block_by_func (selection->new_color,
+                                       gimp_color_selection_new_color_changed,
+                                       selection);
+
+      gimp_color_area_set_color (GIMP_COLOR_AREA (selection->new_color),
+                                 &selection->rgb);
+
+      g_signal_handlers_unblock_by_func (selection->new_color,
+                                         gimp_color_selection_new_color_changed,
+                                         selection);
+    }
+}