Adding upstream version 2.10.22.upstream/2.10.22upstream

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

1 files changed, 488 insertions, 0 deletions

diff --git a/libgimp/gimppaletteselectbutton.c b/libgimp/gimppaletteselectbutton.c
new file mode 100644
index 0000000..ad4957f
--- /dev/null
+++ b/libgimp/gimppaletteselectbutton.c
@@ -0,0 +1,488 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimppaletteselectbutton.c
+ * Copyright (C) 2004  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
+ * Library 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 "libgimpwidgets/gimpwidgets.h"
+
+#include "gimp.h"
+
+#include "gimpuitypes.h"
+#include "gimppaletteselectbutton.h"
+#include "gimpuimarshal.h"
+
+#include "libgimp-intl.h"
+
+
+/**
+ * SECTION: gimppaletteselectbutton
+ * @title: GimpPaletteSelect
+ * @short_description: A button which pops up a palette select dialog.
+ *
+ * A button which pops up a palette select dialog.
+ **/
+
+
+#define GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE(obj) ((GimpPaletteSelectButtonPrivate *) gimp_palette_select_button_get_instance_private ((GimpPaletteSelectButton *) (obj)))
+
+typedef struct _GimpPaletteSelectButtonPrivate GimpPaletteSelectButtonPrivate;
+
+struct _GimpPaletteSelectButtonPrivate
+{
+  gchar     *title;
+
+  gchar     *palette_name;      /* Local copy */
+
+  GtkWidget *inside;
+  GtkWidget *label;
+};
+
+enum
+{
+  PALETTE_SET,
+  LAST_SIGNAL
+};
+
+enum
+{
+  PROP_0,
+  PROP_TITLE,
+  PROP_PALETTE_NAME
+};
+
+
+/*  local function prototypes  */
+
+static void   gimp_palette_select_button_finalize     (GObject      *object);
+
+static void   gimp_palette_select_button_set_property (GObject      *object,
+                                                       guint         property_id,
+                                                       const GValue *value,
+                                                       GParamSpec   *pspec);
+static void   gimp_palette_select_button_get_property (GObject      *object,
+                                                       guint         property_id,
+                                                       GValue       *value,
+                                                       GParamSpec   *pspec);
+
+static void   gimp_palette_select_button_clicked  (GimpPaletteSelectButton *button);
+
+static void   gimp_palette_select_button_callback (const gchar *palette_name,
+                                                   gboolean     dialog_closing,
+                                                   gpointer     user_data);
+
+static void   gimp_palette_select_drag_data_received (GimpPaletteSelectButton *button,
+                                                      GdkDragContext          *context,
+                                                      gint                     x,
+                                                      gint                     y,
+                                                      GtkSelectionData        *selection,
+                                                      guint                    info,
+                                                      guint                    time);
+
+static GtkWidget * gimp_palette_select_button_create_inside (GimpPaletteSelectButton *palette_button);
+
+
+static const GtkTargetEntry target = { "application/x-gimp-palette-name", 0 };
+
+static guint palette_button_signals[LAST_SIGNAL] = { 0 };
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpPaletteSelectButton, gimp_palette_select_button,
+                            GIMP_TYPE_SELECT_BUTTON)
+
+
+static void
+gimp_palette_select_button_class_init (GimpPaletteSelectButtonClass *klass)
+{
+  GObjectClass          *object_class        = G_OBJECT_CLASS (klass);
+  GimpSelectButtonClass *select_button_class = GIMP_SELECT_BUTTON_CLASS (klass);
+
+  object_class->finalize     = gimp_palette_select_button_finalize;
+  object_class->set_property = gimp_palette_select_button_set_property;
+  object_class->get_property = gimp_palette_select_button_get_property;
+
+  select_button_class->select_destroy = gimp_palette_select_destroy;
+
+  klass->palette_set = NULL;
+
+  /**
+   * GimpPaletteSelectButton:title:
+   *
+   * The title to be used for the palette selection popup dialog.
+   *
+   * Since: 2.4
+   */
+  g_object_class_install_property (object_class, PROP_TITLE,
+                                   g_param_spec_string ("title",
+                                                        "Title",
+                                                        "The title to be used for the palette selection popup dialog",
+                                                        _("Palette Selection"),
+                                                        GIMP_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT_ONLY));
+
+  /**
+   * GimpPaletteSelectButton:palette-name:
+   *
+   * The name of the currently selected palette.
+   *
+   * Since: 2.4
+   */
+  g_object_class_install_property (object_class, PROP_PALETTE_NAME,
+                                   g_param_spec_string ("palette-name",
+                                                        "Palette name",
+                                                        "The name of the currently selected palette",
+                                                        NULL,
+                                                        GIMP_PARAM_READWRITE));
+
+  /**
+   * GimpPaletteSelectButton::palette-set:
+   * @widget: the object which received the signal.
+   * @palette_name: the name of the currently selected palette.
+   * @dialog_closing: whether the dialog was closed or not.
+   *
+   * The ::palette-set signal is emitted when the user selects a palette.
+   *
+   * Since: 2.4
+   */
+  palette_button_signals[PALETTE_SET] =
+    g_signal_new ("palette-set",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_FIRST,
+                  G_STRUCT_OFFSET (GimpPaletteSelectButtonClass, palette_set),
+                  NULL, NULL,
+                  _gimpui_marshal_VOID__STRING_BOOLEAN,
+                  G_TYPE_NONE, 2,
+                  G_TYPE_STRING,
+                  G_TYPE_BOOLEAN);
+}
+
+static void
+gimp_palette_select_button_init (GimpPaletteSelectButton *button)
+{
+  GimpPaletteSelectButtonPrivate *priv;
+
+  priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button);
+
+  priv->palette_name = NULL;
+
+  priv->inside = gimp_palette_select_button_create_inside (button);
+  gtk_container_add (GTK_CONTAINER (button), priv->inside);
+}
+
+/**
+ * gimp_palette_select_button_new:
+ * @title:        Title of the dialog to use or %NULL to use the default title.
+ * @palette_name: Initial palette name.
+ *
+ * Creates a new #GtkWidget that completely controls the selection of
+ * a palette.  This widget is suitable for placement in a table in a
+ * plug-in dialog.
+ *
+ * Returns: A #GtkWidget that you can use in your UI.
+ *
+ * Since: 2.4
+ */
+GtkWidget *
+gimp_palette_select_button_new (const gchar *title,
+                                const gchar *palette_name)
+{
+  GtkWidget *button;
+
+  if (title)
+    button = g_object_new (GIMP_TYPE_PALETTE_SELECT_BUTTON,
+                           "title",        title,
+                           "palette-name", palette_name,
+                           NULL);
+  else
+    button = g_object_new (GIMP_TYPE_PALETTE_SELECT_BUTTON,
+                           "palette-name", palette_name,
+                           NULL);
+
+  return button;
+}
+
+/**
+ * gimp_palette_select_button_get_palette:
+ * @button: A #GimpPaletteSelectButton
+ *
+ * Retrieves the name of currently selected palette.
+ *
+ * Returns: an internal copy of the palette name which must not be freed.
+ *
+ * Since: 2.4
+ */
+const gchar *
+gimp_palette_select_button_get_palette (GimpPaletteSelectButton *button)
+{
+  GimpPaletteSelectButtonPrivate *priv;
+
+  g_return_val_if_fail (GIMP_IS_PALETTE_SELECT_BUTTON (button), NULL);
+
+  priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button);
+  return priv->palette_name;
+}
+
+/**
+ * gimp_palette_select_button_set_palette:
+ * @button: A #GimpPaletteSelectButton
+ * @palette_name: Palette name to set; %NULL means no change.
+ *
+ * Sets the current palette for the palette select button.
+ *
+ * Since: 2.4
+ */
+void
+gimp_palette_select_button_set_palette (GimpPaletteSelectButton *button,
+                                        const gchar             *palette_name)
+{
+  GimpSelectButton *select_button;
+
+  g_return_if_fail (GIMP_IS_PALETTE_SELECT_BUTTON (button));
+
+  select_button = GIMP_SELECT_BUTTON (button);
+
+  if (select_button->temp_callback)
+    {
+      gimp_palettes_set_popup (select_button->temp_callback, palette_name);
+    }
+  else
+    {
+      gchar *name;
+      gint   num_colors;
+
+      if (palette_name && *palette_name)
+        name = g_strdup (palette_name);
+      else
+        name = gimp_context_get_palette ();
+
+      if (gimp_palette_get_info (name, &num_colors))
+        gimp_palette_select_button_callback (name, FALSE, button);
+
+      g_free (name);
+    }
+}
+
+
+/*  private functions  */
+
+static void
+gimp_palette_select_button_finalize (GObject *object)
+{
+  GimpPaletteSelectButtonPrivate *priv;
+
+  priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (object);
+
+  g_clear_pointer (&priv->palette_name, g_free);
+  g_clear_pointer (&priv->title,        g_free);
+
+  G_OBJECT_CLASS (gimp_palette_select_button_parent_class)->finalize (object);
+}
+
+static void
+gimp_palette_select_button_set_property (GObject      *object,
+                                         guint         property_id,
+                                         const GValue *value,
+                                         GParamSpec   *pspec)
+{
+  GimpPaletteSelectButton        *button;
+  GimpPaletteSelectButtonPrivate *priv;
+
+  button = GIMP_PALETTE_SELECT_BUTTON (object);
+  priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button);
+
+  switch (property_id)
+    {
+    case PROP_TITLE:
+      priv->title = g_value_dup_string (value);
+      break;
+    case PROP_PALETTE_NAME:
+      gimp_palette_select_button_set_palette (button,
+                                              g_value_get_string (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_palette_select_button_get_property (GObject    *object,
+                                         guint       property_id,
+                                         GValue     *value,
+                                         GParamSpec *pspec)
+{
+  GimpPaletteSelectButton        *button;
+  GimpPaletteSelectButtonPrivate *priv;
+
+  button = GIMP_PALETTE_SELECT_BUTTON (object);
+  priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button);
+
+  switch (property_id)
+    {
+    case PROP_TITLE:
+      g_value_set_string (value, priv->title);
+      break;
+    case PROP_PALETTE_NAME:
+      g_value_set_string (value, priv->palette_name);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_palette_select_button_callback (const gchar *palette_name,
+                                     gboolean     dialog_closing,
+                                     gpointer     user_data)
+{
+  GimpPaletteSelectButton        *button;
+  GimpPaletteSelectButtonPrivate *priv;
+  GimpSelectButton               *select_button;
+
+  button = GIMP_PALETTE_SELECT_BUTTON (user_data);
+
+  priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button);
+  select_button = GIMP_SELECT_BUTTON (button);
+
+  g_free (priv->palette_name);
+  priv->palette_name = g_strdup (palette_name);
+
+  gtk_label_set_text (GTK_LABEL (priv->label), palette_name);
+
+  if (dialog_closing)
+    select_button->temp_callback = NULL;
+
+  g_signal_emit (button, palette_button_signals[PALETTE_SET], 0,
+                 palette_name, dialog_closing);
+  g_object_notify (G_OBJECT (button), "palette-name");
+}
+
+static void
+gimp_palette_select_button_clicked (GimpPaletteSelectButton *button)
+{
+  GimpPaletteSelectButtonPrivate *priv;
+  GimpSelectButton               *select_button;
+
+  priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button);
+  select_button = GIMP_SELECT_BUTTON (button);
+
+  if (select_button->temp_callback)
+    {
+      /*  calling gimp_palettes_set_popup() raises the dialog  */
+      gimp_palettes_set_popup (select_button->temp_callback,
+                               priv->palette_name);
+    }
+  else
+    {
+      select_button->temp_callback =
+        gimp_palette_select_new (priv->title, priv->palette_name,
+                                 gimp_palette_select_button_callback,
+                                 button);
+    }
+}
+
+static void
+gimp_palette_select_drag_data_received (GimpPaletteSelectButton *button,
+                                        GdkDragContext          *context,
+                                        gint                     x,
+                                        gint                     y,
+                                        GtkSelectionData        *selection,
+                                        guint                    info,
+                                        guint                    time)
+{
+  gint   length = gtk_selection_data_get_length (selection);
+  gchar *str;
+
+  if (gtk_selection_data_get_format (selection) != 8 || length < 1)
+    {
+      g_warning ("%s: received invalid palette data", G_STRFUNC);
+      return;
+    }
+
+  str = g_strndup ((const gchar *) gtk_selection_data_get_data (selection),
+                   length);
+
+  if (g_utf8_validate (str, -1, NULL))
+    {
+      gint     pid;
+      gpointer unused;
+      gint     name_offset = 0;
+
+      if (sscanf (str, "%i:%p:%n", &pid, &unused, &name_offset) >= 2 &&
+          pid == gimp_getpid () && name_offset > 0)
+        {
+          gchar *name = str + name_offset;
+
+          gimp_palette_select_button_set_palette (button, name);
+        }
+    }
+
+  g_free (str);
+}
+
+static GtkWidget *
+gimp_palette_select_button_create_inside (GimpPaletteSelectButton *palette_button)
+{
+  GtkWidget                      *button;
+  GtkWidget                      *hbox;
+  GtkWidget                      *image;
+  GimpPaletteSelectButtonPrivate *priv;
+
+  priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (palette_button);
+
+  gtk_widget_push_composite_child ();
+
+  button = gtk_button_new ();
+
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+  gtk_container_add (GTK_CONTAINER (button), hbox);
+
+  image = gtk_image_new_from_icon_name (GIMP_ICON_PALETTE,
+                                        GTK_ICON_SIZE_BUTTON);
+  gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
+
+  priv->label = gtk_label_new (priv->palette_name);
+  gtk_box_pack_start (GTK_BOX (hbox), priv->label, TRUE, TRUE, 4);
+
+  gtk_widget_show_all (button);
+
+  g_signal_connect_swapped (button, "clicked",
+                            G_CALLBACK (gimp_palette_select_button_clicked),
+                            palette_button);
+
+  gtk_drag_dest_set (GTK_WIDGET (button),
+                     GTK_DEST_DEFAULT_HIGHLIGHT |
+                     GTK_DEST_DEFAULT_MOTION |
+                     GTK_DEST_DEFAULT_DROP,
+                     &target, 1,
+                     GDK_ACTION_COPY);
+
+  g_signal_connect_swapped (button, "drag-data-received",
+                            G_CALLBACK (gimp_palette_select_drag_data_received),
+                            palette_button);
+
+  gtk_widget_pop_composite_child ();
+
+  return button;
+}