[gimp] app: clean up the palette-import-dialog in the spirit of recent dialog cleanup



commit f027bf53abda1b24fad2cdb6c9f5e90b118b366b
Author: Michael Natterer <mitch gimp org>
Date:   Sun Oct 9 21:08:21 2016 +0200

    app: clean up the palette-import-dialog in the spirit of recent dialog cleanup

 app/dialogs/palette-import-dialog.c |  491 ++++++++++++++++++-----------------
 app/dialogs/palette-import-dialog.h |    6 +-
 2 files changed, 254 insertions(+), 243 deletions(-)
---
diff --git a/app/dialogs/palette-import-dialog.c b/app/dialogs/palette-import-dialog.c
index 8618bec..7aa032d 100644
--- a/app/dialogs/palette-import-dialog.c
+++ b/app/dialogs/palette-import-dialog.c
@@ -87,42 +87,42 @@ typedef struct
 } ImportDialog;
 
 
-static void   palette_import_free                 (ImportDialog   *dialog);
-static void   palette_import_response             (GtkWidget      *widget,
+static void   palette_import_free                 (ImportDialog   *private);
+static void   palette_import_response             (GtkWidget      *dialog,
                                                    gint            response_id,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_gradient_changed     (GimpContext    *context,
                                                    GimpGradient   *gradient,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_image_changed        (GimpContext    *context,
                                                    GimpImage      *image,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_layer_changed        (GimpImage      *image,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_mask_changed         (GimpImage      *image,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_filename_changed     (GtkFileChooser *button,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   import_dialog_drop_callback         (GtkWidget      *widget,
                                                    gint            x,
                                                    gint            y,
                                                    GimpViewable   *viewable,
                                                    gpointer        data);
 static void   palette_import_grad_callback        (GtkWidget      *widget,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_image_callback       (GtkWidget      *widget,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_file_callback        (GtkWidget      *widget,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_columns_changed      (GtkAdjustment  *adjustment,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_image_add            (GimpContainer  *container,
                                                    GimpImage      *image,
-                                                   ImportDialog   *dialog);
+                                                   ImportDialog   *private);
 static void   palette_import_image_remove         (GimpContainer  *container,
                                                    GimpImage      *image,
-                                                   ImportDialog   *dialog);
-static void   palette_import_make_palette         (ImportDialog   *dialog);
+                                                   ImportDialog   *private);
+static void   palette_import_make_palette         (ImportDialog   *private);
 
 
 /*  public functions  */
@@ -130,8 +130,9 @@ static void   palette_import_make_palette         (ImportDialog   *dialog);
 GtkWidget *
 palette_import_dialog_new (GimpContext *context)
 {
-  ImportDialog *dialog;
+  ImportDialog *private;
   GimpGradient *gradient;
+  GtkWidget    *dialog;
   GtkWidget    *button;
   GtkWidget    *main_hbox;
   GtkWidget    *frame;
@@ -145,51 +146,52 @@ palette_import_dialog_new (GimpContext *context)
 
   gradient = gimp_context_get_gradient (context);
 
-  dialog = g_slice_new0 (ImportDialog);
+  private = g_slice_new0 (ImportDialog);
 
-  dialog->import_type = GRADIENT_IMPORT;
-  dialog->context     = gimp_context_new (context->gimp, "Palette Import",
+  private->import_type = GRADIENT_IMPORT;
+  private->context     = gimp_context_new (context->gimp, "Palette Import",
                                           context);
 
-  dialog->dialog = gimp_dialog_new (_("Import a New Palette"),
-                                    "gimp-palette-import", NULL, 0,
-                                    gimp_standard_help_func,
-                                    GIMP_HELP_PALETTE_IMPORT,
+  dialog = private->dialog =
+    gimp_dialog_new (_("Import a New Palette"),
+                     "gimp-palette-import", NULL, 0,
+                     gimp_standard_help_func,
+                     GIMP_HELP_PALETTE_IMPORT,
 
-                                    GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+                     GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 
-                                    NULL);
+                     NULL);
 
-  button = gtk_dialog_add_button (GTK_DIALOG (dialog->dialog),
+  button = gtk_dialog_add_button (GTK_DIALOG (dialog),
                                   _("_Import"), GTK_RESPONSE_OK);
   gtk_button_set_image (GTK_BUTTON (button),
                         gtk_image_new_from_icon_name ("gtk-convert",
                                                       GTK_ICON_SIZE_BUTTON));
 
-  gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog->dialog),
+  gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
                                            GTK_RESPONSE_OK,
                                            GTK_RESPONSE_CANCEL,
                                            -1);
 
-  g_object_set_data_full (G_OBJECT (dialog->dialog), "palette-import-dialog",
-                          dialog, (GDestroyNotify) palette_import_free);
+  g_object_weak_ref (G_OBJECT (dialog),
+                     (GWeakNotify) palette_import_free, private);
 
-  g_signal_connect (dialog->dialog, "response",
+  g_signal_connect (dialog, "response",
                     G_CALLBACK (palette_import_response),
-                    dialog);
+                    private);
 
-  gimp_dnd_viewable_dest_add (dialog->dialog,
+  gimp_dnd_viewable_dest_add (dialog,
                               GIMP_TYPE_GRADIENT,
                               import_dialog_drop_callback,
-                              dialog);
-  gimp_dnd_viewable_dest_add (dialog->dialog,
+                              private);
+  gimp_dnd_viewable_dest_add (dialog,
                               GIMP_TYPE_IMAGE,
                               import_dialog_drop_callback,
-                              dialog);
+                              private);
 
   main_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
   gtk_container_set_border_width (GTK_CONTAINER (main_hbox), 12);
-  gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog->dialog))),
+  gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
                       main_hbox, TRUE, TRUE, 0);
   gtk_widget_show (main_hbox);
 
@@ -210,90 +212,90 @@ palette_import_dialog_new (GimpContext *context)
   gtk_container_add (GTK_CONTAINER (frame), table);
   gtk_widget_show (table);
 
-  dialog->gradient_radio =
+  private->gradient_radio =
     gtk_radio_button_new_with_mnemonic (group, _("_Gradient"));
-  group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (dialog->gradient_radio));
-  gtk_table_attach (GTK_TABLE (table), dialog->gradient_radio,
+  group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (private->gradient_radio));
+  gtk_table_attach (GTK_TABLE (table), private->gradient_radio,
                     0, 1, 0, 1, GTK_FILL, GTK_FILL, 0, 0);
-  gtk_widget_show (dialog->gradient_radio);
+  gtk_widget_show (private->gradient_radio);
 
-  g_signal_connect (dialog->gradient_radio, "toggled",
+  g_signal_connect (private->gradient_radio, "toggled",
                     G_CALLBACK (palette_import_grad_callback),
-                    dialog);
+                    private);
 
-  dialog->image_radio =
+  private->image_radio =
     gtk_radio_button_new_with_mnemonic (group, _("I_mage"));
-  group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (dialog->image_radio));
-  gtk_table_attach (GTK_TABLE (table), dialog->image_radio,
+  group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (private->image_radio));
+  gtk_table_attach (GTK_TABLE (table), private->image_radio,
                     0, 1, 1, 2, GTK_FILL, GTK_FILL, 0, 0);
-  gtk_widget_show (dialog->image_radio);
+  gtk_widget_show (private->image_radio);
 
-  g_signal_connect (dialog->image_radio, "toggled",
+  g_signal_connect (private->image_radio, "toggled",
                     G_CALLBACK (palette_import_image_callback),
-                    dialog);
+                    private);
 
-  gtk_widget_set_sensitive (dialog->image_radio,
+  gtk_widget_set_sensitive (private->image_radio,
                             ! gimp_container_is_empty (context->gimp->images));
 
-  dialog->sample_merged_toggle =
+  private->sample_merged_toggle =
     gtk_check_button_new_with_mnemonic (_("Sample _Merged"));
-  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->sample_merged_toggle),
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (private->sample_merged_toggle),
                                 TRUE);
-  gtk_table_attach (GTK_TABLE (table), dialog->sample_merged_toggle,
+  gtk_table_attach (GTK_TABLE (table), private->sample_merged_toggle,
                     1, 2, 2, 3, GTK_FILL, GTK_FILL, 0, 0);
-  gtk_widget_show (dialog->sample_merged_toggle);
+  gtk_widget_show (private->sample_merged_toggle);
 
-  g_signal_connect_swapped (dialog->sample_merged_toggle, "toggled",
+  g_signal_connect_swapped (private->sample_merged_toggle, "toggled",
                             G_CALLBACK (palette_import_make_palette),
-                            dialog);
+                            private);
 
-  dialog->selection_only_toggle =
+  private->selection_only_toggle =
     gtk_check_button_new_with_mnemonic (_("_Selected Pixels only"));
-  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->selection_only_toggle),
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (private->selection_only_toggle),
                                 FALSE);
-  gtk_table_attach (GTK_TABLE (table), dialog->selection_only_toggle,
+  gtk_table_attach (GTK_TABLE (table), private->selection_only_toggle,
                     1, 2, 3, 4, GTK_FILL, GTK_FILL, 0, 0);
-  gtk_widget_show (dialog->selection_only_toggle);
+  gtk_widget_show (private->selection_only_toggle);
 
-  g_signal_connect_swapped (dialog->selection_only_toggle, "toggled",
+  g_signal_connect_swapped (private->selection_only_toggle, "toggled",
                             G_CALLBACK (palette_import_make_palette),
-                            dialog);
+                            private);
 
-  dialog->file_radio =
+  private->file_radio =
     gtk_radio_button_new_with_mnemonic (group, _("Palette _file"));
-  group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (dialog->image_radio));
-  gtk_table_attach (GTK_TABLE (table), dialog->file_radio,
+  group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (private->image_radio));
+  gtk_table_attach (GTK_TABLE (table), private->file_radio,
                     0, 1, 4, 5, GTK_FILL, GTK_FILL, 0, 0);
-  gtk_widget_show (dialog->file_radio);
+  gtk_widget_show (private->file_radio);
 
-  g_signal_connect (dialog->file_radio, "toggled",
+  g_signal_connect (private->file_radio, "toggled",
                     G_CALLBACK (palette_import_file_callback),
-                    dialog);
+                    private);
 
   size_group = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);
 
   /*  The gradient menu  */
-  dialog->gradient_combo =
+  private->gradient_combo =
     gimp_container_combo_box_new (gimp_data_factory_get_container (context->gimp->gradient_factory),
-                                  dialog->context, 24, 1);
+                                  private->context, 24, 1);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
-                             NULL, 0.0, 0.5, dialog->gradient_combo, 1, FALSE);
-  gtk_size_group_add_widget (size_group, dialog->gradient_combo);
+                             NULL, 0.0, 0.5, private->gradient_combo, 1, FALSE);
+  gtk_size_group_add_widget (size_group, private->gradient_combo);
 
   /*  The image menu  */
-  dialog->image_combo =
-    gimp_container_combo_box_new (context->gimp->images, dialog->context,
+  private->image_combo =
+    gimp_container_combo_box_new (context->gimp->images, private->context,
                                   24, 1);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
-                             NULL, 0.0, 0.5, dialog->image_combo, 1, FALSE);
-  gtk_size_group_add_widget (size_group, dialog->image_combo);
+                             NULL, 0.0, 0.5, private->image_combo, 1, FALSE);
+  gtk_size_group_add_widget (size_group, private->image_combo);
 
   /*  Palette file name entry  */
-  dialog->file_chooser = gtk_file_chooser_button_new (_("Select Palette File"),
+  private->file_chooser = gtk_file_chooser_button_new (_("Select Palette File"),
                                                       GTK_FILE_CHOOSER_ACTION_OPEN);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
-                             NULL, 0.0, 0.5, dialog->file_chooser, 1, FALSE);
-  gtk_size_group_add_widget (size_group, dialog->file_chooser);
+                             NULL, 0.0, 0.5, private->file_chooser, 1, FALSE);
+  gtk_size_group_add_widget (size_group, private->file_chooser);
 
   g_object_unref (size_group);
 
@@ -311,50 +313,50 @@ palette_import_dialog_new (GimpContext *context)
   gtk_widget_show (table);
 
   /*  The source's name  */
-  dialog->entry = gtk_entry_new ();
-  gtk_entry_set_text (GTK_ENTRY (dialog->entry),
+  private->entry = gtk_entry_new ();
+  gtk_entry_set_text (GTK_ENTRY (private->entry),
                       gradient ?
                       gimp_object_get_name (gradient) : _("New import"));
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
                              _("Palette _name:"), 0.0, 0.5,
-                             dialog->entry, 2, FALSE);
+                             private->entry, 2, FALSE);
 
   /*  The # of colors  */
-  dialog->num_colors =
+  private->num_colors =
     GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
                                           _("N_umber of colors:"), -1, 5,
                                           256, 2, 10000, 1, 10, 0,
                                           TRUE, 0.0, 0.0,
                                           NULL, NULL));
 
-  g_signal_connect_swapped (dialog->num_colors,
+  g_signal_connect_swapped (private->num_colors,
                             "value-changed",
                             G_CALLBACK (palette_import_make_palette),
-                            dialog);
+                            private);
 
   /*  The columns  */
-  dialog->columns =
+  private->columns =
     GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
                                           _("C_olumns:"), -1, 5,
                                           16, 0, 64, 1, 8, 0,
                                           TRUE, 0.0, 0.0,
                                           NULL, NULL));
 
-  g_signal_connect (dialog->columns, "value-changed",
+  g_signal_connect (private->columns, "value-changed",
                     G_CALLBACK (palette_import_columns_changed),
-                    dialog);
+                    private);
 
   /*  The interval  */
-  dialog->threshold =
+  private->threshold =
     GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 0, 3,
                                           _("I_nterval:"), -1, 5,
                                           1, 1, 128, 1, 8, 0,
                                           TRUE, 0.0, 0.0,
                                           NULL, NULL));
 
-  g_signal_connect_swapped (dialog->threshold, "value-changed",
+  g_signal_connect_swapped (private->threshold, "value-changed",
                             G_CALLBACK (palette_import_make_palette),
-                            dialog);
+                            private);
 
 
   /*  The "Preview" frame  */
@@ -370,99 +372,106 @@ palette_import_dialog_new (GimpContext *context)
   gtk_box_pack_start (GTK_BOX (vbox), abox, FALSE, FALSE, 0);
   gtk_widget_show (abox);
 
-  dialog->preview = gimp_view_new_full_by_types (dialog->context,
+  private->preview = gimp_view_new_full_by_types (private->context,
                                                  GIMP_TYPE_VIEW,
                                                  GIMP_TYPE_PALETTE,
                                                  192, 192, 1,
                                                  TRUE, FALSE, FALSE);
-  gtk_container_add (GTK_CONTAINER (abox), dialog->preview);
-  gtk_widget_show (dialog->preview);
+  gtk_container_add (GTK_CONTAINER (abox), private->preview);
+  gtk_widget_show (private->preview);
 
-  dialog->no_colors_label =
+  private->no_colors_label =
     gtk_label_new (_("The selected source contains no colors."));
-  gtk_widget_set_size_request (dialog->no_colors_label, 194, -1);
-  gtk_label_set_line_wrap (GTK_LABEL (dialog->no_colors_label), TRUE);
-  gimp_label_set_attributes (GTK_LABEL (dialog->no_colors_label),
+  gtk_widget_set_size_request (private->no_colors_label, 194, -1);
+  gtk_label_set_line_wrap (GTK_LABEL (private->no_colors_label), TRUE);
+  gimp_label_set_attributes (GTK_LABEL (private->no_colors_label),
                              PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
                              -1);
-  gtk_box_pack_start (GTK_BOX (vbox), dialog->no_colors_label, FALSE, FALSE, 0);
-  gtk_widget_show (dialog->no_colors_label);
+  gtk_box_pack_start (GTK_BOX (vbox), private->no_colors_label, FALSE, FALSE, 0);
+  gtk_widget_show (private->no_colors_label);
 
 
   /*  keep the dialog up-to-date  */
 
   g_signal_connect (context->gimp->images, "add",
                     G_CALLBACK (palette_import_image_add),
-                    dialog);
+                    private);
   g_signal_connect (context->gimp->images, "remove",
                     G_CALLBACK (palette_import_image_remove),
-                    dialog);
+                    private);
 
-  g_signal_connect (dialog->context, "gradient-changed",
+  g_signal_connect (private->context, "gradient-changed",
                     G_CALLBACK (palette_import_gradient_changed),
-                    dialog);
-  g_signal_connect (dialog->context, "image-changed",
+                    private);
+  g_signal_connect (private->context, "image-changed",
                     G_CALLBACK (palette_import_image_changed),
-                    dialog);
-  g_signal_connect (dialog->file_chooser, "selection-changed",
+                    private);
+  g_signal_connect (private->file_chooser, "selection-changed",
                     G_CALLBACK (palette_import_filename_changed),
-                    dialog);
+                    private);
 
-  palette_import_grad_callback (dialog->gradient_radio, dialog);
+  palette_import_grad_callback (private->gradient_radio, private);
 
-  return dialog->dialog;
+  return dialog;
 }
 
 
 /*  private functions  */
 
 static void
-palette_import_free (ImportDialog *dialog)
+palette_import_free (ImportDialog *private)
 {
-  Gimp *gimp = dialog->context->gimp;
+  Gimp *gimp = private->context->gimp;
 
   g_signal_handlers_disconnect_by_func (gimp->images,
                                         palette_import_image_add,
-                                        dialog);
+                                        private);
   g_signal_handlers_disconnect_by_func (gimp->images,
                                         palette_import_image_remove,
-                                        dialog);
+                                        private);
 
-  if (dialog->palette)
-    g_object_unref (dialog->palette);
+  if (private->palette)
+    g_object_unref (private->palette);
 
-  g_object_unref (dialog->context);
+  g_object_unref (private->context);
 
-  g_slice_free (ImportDialog, dialog);
+  g_slice_free (ImportDialog, private);
 }
 
 
 /*  the palette import response callback  ************************************/
 
 static void
-palette_import_response (GtkWidget    *widget,
+palette_import_response (GtkWidget    *dialog,
                          gint          response_id,
-                         ImportDialog *dialog)
+                         ImportDialog *private)
 {
-  Gimp *gimp = dialog->context->gimp;
+  palette_import_image_changed (private->context, NULL, private);
 
-  palette_import_image_changed (dialog->context, NULL, dialog);
-
-  if (dialog->palette)
+  if (response_id == GTK_RESPONSE_OK)
     {
-      if (response_id == GTK_RESPONSE_OK)
+      Gimp *gimp = private->context->gimp;
+
+      if (private->palette &&
+          gimp_palette_get_n_colors (private->palette) > 0)
         {
-          const gchar *name = gtk_entry_get_text (GTK_ENTRY (dialog->entry));
+          const gchar *name = gtk_entry_get_text (GTK_ENTRY (private->entry));
 
           if (name && *name)
-            gimp_object_set_name (GIMP_OBJECT (dialog->palette), name);
+            gimp_object_set_name (GIMP_OBJECT (private->palette), name);
 
           gimp_container_add (gimp_data_factory_get_container (gimp->palette_factory),
-                              GIMP_OBJECT (dialog->palette));
+                              GIMP_OBJECT (private->palette));
+        }
+      else
+        {
+          gimp_message_literal (gimp, G_OBJECT (dialog), GIMP_MESSAGE_ERROR,
+                                _("There is no palette to import."));
+          return;
         }
     }
 
-  gtk_widget_destroy (dialog->dialog);
+  gtk_widget_destroy (dialog);
 }
 
 
@@ -471,35 +480,35 @@ palette_import_response (GtkWidget    *widget,
 static void
 palette_import_gradient_changed (GimpContext  *context,
                                  GimpGradient *gradient,
-                                 ImportDialog *dialog)
+                                 ImportDialog *private)
 {
-  if (gradient && dialog->import_type == GRADIENT_IMPORT)
+  if (gradient && private->import_type == GRADIENT_IMPORT)
     {
-      gtk_entry_set_text (GTK_ENTRY (dialog->entry),
+      gtk_entry_set_text (GTK_ENTRY (private->entry),
                           gimp_object_get_name (gradient));
 
-      palette_import_make_palette (dialog);
+      palette_import_make_palette (private);
     }
 }
 
 static void
 palette_import_image_changed (GimpContext  *context,
                               GimpImage    *image,
-                              ImportDialog *dialog)
+                              ImportDialog *private)
 {
-  if (dialog->image)
+  if (private->image)
     {
-      g_signal_handlers_disconnect_by_func (dialog->image,
+      g_signal_handlers_disconnect_by_func (private->image,
                                             palette_import_layer_changed,
-                                            dialog);
-      g_signal_handlers_disconnect_by_func (dialog->image,
+                                            private);
+      g_signal_handlers_disconnect_by_func (private->image,
                                             palette_import_mask_changed,
-                                            dialog);
+                                            private);
     }
 
-  dialog->image = image;
+  private->image = image;
 
-  if (dialog->import_type == IMAGE_IMPORT)
+  if (private->import_type == IMAGE_IMPORT)
     {
       gboolean sensitive = FALSE;
 
@@ -511,65 +520,65 @@ palette_import_image_changed (GimpContext  *context,
                                   gimp_image_get_display_name (image),
                                   gimp_image_get_ID (image));
 
-          gtk_entry_set_text (GTK_ENTRY (dialog->entry), label);
+          gtk_entry_set_text (GTK_ENTRY (private->entry), label);
           g_free (label);
 
-          palette_import_make_palette (dialog);
+          palette_import_make_palette (private);
 
           if (gimp_image_get_base_type (image) != GIMP_INDEXED)
             sensitive = TRUE;
         }
 
-      gtk_widget_set_sensitive (dialog->sample_merged_toggle, sensitive);
-      gtk_widget_set_sensitive (dialog->selection_only_toggle, sensitive);
-      gimp_scale_entry_set_sensitive (GTK_OBJECT (dialog->threshold),
+      gtk_widget_set_sensitive (private->sample_merged_toggle, sensitive);
+      gtk_widget_set_sensitive (private->selection_only_toggle, sensitive);
+      gimp_scale_entry_set_sensitive (GTK_OBJECT (private->threshold),
                                       sensitive);
-      gimp_scale_entry_set_sensitive (GTK_OBJECT (dialog->num_colors),
+      gimp_scale_entry_set_sensitive (GTK_OBJECT (private->num_colors),
                                       sensitive);
     }
 
-  if (dialog->image)
+  if (private->image)
     {
-      g_signal_connect (dialog->image, "active-layer-changed",
+      g_signal_connect (private->image, "active-layer-changed",
                         G_CALLBACK (palette_import_layer_changed),
-                        dialog);
-      g_signal_connect (dialog->image, "mask-changed",
+                        private);
+      g_signal_connect (private->image, "mask-changed",
                         G_CALLBACK (palette_import_mask_changed),
-                        dialog);
+                        private);
     }
 }
 
 static void
 palette_import_layer_changed (GimpImage    *image,
-                              ImportDialog *dialog)
+                              ImportDialog *private)
 {
-  if (dialog->import_type == IMAGE_IMPORT &&
+  if (private->import_type == IMAGE_IMPORT &&
       ! gtk_toggle_button_get_active
-        (GTK_TOGGLE_BUTTON (dialog->sample_merged_toggle)))
+        (GTK_TOGGLE_BUTTON (private->sample_merged_toggle)))
     {
-      palette_import_make_palette (dialog);
+      palette_import_make_palette (private);
     }
 }
 
 static void
 palette_import_mask_changed (GimpImage    *image,
-                             ImportDialog *dialog)
+                             ImportDialog *private)
 {
-  if (dialog->import_type == IMAGE_IMPORT &&
+  if (private->import_type == IMAGE_IMPORT &&
       gtk_toggle_button_get_active
-      (GTK_TOGGLE_BUTTON (dialog->selection_only_toggle)))
+      (GTK_TOGGLE_BUTTON (private->selection_only_toggle)))
     {
-      palette_import_make_palette (dialog);
+      palette_import_make_palette (private);
     }
 }
 
 static void
 palette_import_filename_changed (GtkFileChooser *button,
-                                 ImportDialog   *dialog)
+                                 ImportDialog   *private)
 {
   gchar *filename;
 
-  if (dialog->import_type != FILE_IMPORT)
+  if (private->import_type != FILE_IMPORT)
     return;
 
   filename = gtk_file_chooser_get_filename (button);
@@ -579,17 +588,17 @@ palette_import_filename_changed (GtkFileChooser *button,
       gchar *basename = g_filename_display_basename (filename);
 
       /* TODO: strip filename extension */
-      gtk_entry_set_text (GTK_ENTRY (dialog->entry), basename);
+      gtk_entry_set_text (GTK_ENTRY (private->entry), basename);
       g_free (basename);
     }
   else
     {
-      gtk_entry_set_text (GTK_ENTRY (dialog->entry), "");
+      gtk_entry_set_text (GTK_ENTRY (private->entry), "");
     }
 
   g_free (filename);
 
-  palette_import_make_palette (dialog);
+  palette_import_make_palette (private);
 }
 
 static void
@@ -599,22 +608,22 @@ import_dialog_drop_callback (GtkWidget    *widget,
                              GimpViewable *viewable,
                              gpointer      data)
 {
-  ImportDialog *dialog = data;
+  ImportDialog *private = data;
 
-  gimp_context_set_by_type (dialog->context,
+  gimp_context_set_by_type (private->context,
                             G_TYPE_FROM_INSTANCE (viewable),
                             GIMP_OBJECT (viewable));
 
   if (GIMP_IS_GRADIENT (viewable) &&
-      dialog->import_type != GRADIENT_IMPORT)
+      private->import_type != GRADIENT_IMPORT)
     {
-      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->gradient_radio),
+      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (private->gradient_radio),
                                     TRUE);
     }
   else if (GIMP_IS_IMAGE (viewable) &&
-           dialog->import_type != IMAGE_IMPORT)
+           private->import_type != IMAGE_IMPORT)
     {
-      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->image_radio),
+      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (private->image_radio),
                                     TRUE);
     }
 }
@@ -623,141 +632,142 @@ import_dialog_drop_callback (GtkWidget    *widget,
 /*  the import source menu item callbacks  ***********************************/
 
 static void
-palette_import_set_sensitive (ImportDialog *dialog)
+palette_import_set_sensitive (ImportDialog *private)
 {
-  gboolean gradient = (dialog->import_type == GRADIENT_IMPORT);
-  gboolean image    = (dialog->import_type == IMAGE_IMPORT);
-  gboolean file     = (dialog->import_type == FILE_IMPORT);
-
-  gtk_widget_set_sensitive (dialog->gradient_combo,        gradient);
-  gtk_widget_set_sensitive (dialog->image_combo,           image);
-  gtk_widget_set_sensitive (dialog->sample_merged_toggle,  image);
-  gtk_widget_set_sensitive (dialog->selection_only_toggle, image);
-  gtk_widget_set_sensitive (dialog->file_chooser,          file);
-
-  gimp_scale_entry_set_sensitive (GTK_OBJECT (dialog->num_colors), ! file);
-  gimp_scale_entry_set_sensitive (GTK_OBJECT (dialog->columns),    ! file);
-  gimp_scale_entry_set_sensitive (GTK_OBJECT (dialog->threshold),  image);
+  gboolean gradient = (private->import_type == GRADIENT_IMPORT);
+  gboolean image    = (private->import_type == IMAGE_IMPORT);
+  gboolean file     = (private->import_type == FILE_IMPORT);
+
+  gtk_widget_set_sensitive (private->gradient_combo,        gradient);
+  gtk_widget_set_sensitive (private->image_combo,           image);
+  gtk_widget_set_sensitive (private->sample_merged_toggle,  image);
+  gtk_widget_set_sensitive (private->selection_only_toggle, image);
+  gtk_widget_set_sensitive (private->file_chooser,          file);
+
+  gimp_scale_entry_set_sensitive (GTK_OBJECT (private->num_colors), ! file);
+  gimp_scale_entry_set_sensitive (GTK_OBJECT (private->columns),    ! file);
+  gimp_scale_entry_set_sensitive (GTK_OBJECT (private->threshold),  image);
 }
 
 static void
 palette_import_grad_callback (GtkWidget    *widget,
-                              ImportDialog *dialog)
+                              ImportDialog *private)
 {
   GimpGradient *gradient;
 
   if (! gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
     return;
 
-  dialog->import_type = GRADIENT_IMPORT;
+  private->import_type = GRADIENT_IMPORT;
 
-  gradient = gimp_context_get_gradient (dialog->context);
+  gradient = gimp_context_get_gradient (private->context);
 
-  gtk_entry_set_text (GTK_ENTRY (dialog->entry),
+  gtk_entry_set_text (GTK_ENTRY (private->entry),
                       gimp_object_get_name (gradient));
 
-  palette_import_set_sensitive (dialog);
+  palette_import_set_sensitive (private);
 
-  palette_import_make_palette (dialog);
+  palette_import_make_palette (private);
 }
 
 static void
 palette_import_image_callback (GtkWidget    *widget,
-                               ImportDialog *dialog)
+                               ImportDialog *private)
 {
   GimpImage *image;
 
   if (! gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
     return;
 
-  dialog->import_type = IMAGE_IMPORT;
+  private->import_type = IMAGE_IMPORT;
 
-  image = gimp_context_get_image (dialog->context);
+  image = gimp_context_get_image (private->context);
 
   if (! image)
     {
-      GimpContainer *images = dialog->context->gimp->images;
+      GimpContainer *images = private->context->gimp->images;
 
       image = GIMP_IMAGE (gimp_container_get_first_child (images));
     }
 
-  palette_import_set_sensitive (dialog);
+  palette_import_set_sensitive (private);
 
-  palette_import_image_changed (dialog->context, image, dialog);
+  palette_import_image_changed (private->context, image, private);
 }
 
 static void
 palette_import_file_callback (GtkWidget    *widget,
-                              ImportDialog *dialog)
+                              ImportDialog *private)
 {
   gchar *filename;
 
   if (! gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
     return;
 
-  dialog->import_type = FILE_IMPORT;
+  private->import_type = FILE_IMPORT;
 
   filename =
-    gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog->file_chooser));
+    gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (private->file_chooser));
 
   if (filename)
     {
       gchar *basename = g_filename_display_basename (filename);
 
       /* TODO: strip filename extension */
-      gtk_entry_set_text (GTK_ENTRY (dialog->entry), basename);
+      gtk_entry_set_text (GTK_ENTRY (private->entry), basename);
       g_free (basename);
 
       g_free (filename);
     }
   else
     {
-      gtk_entry_set_text (GTK_ENTRY (dialog->entry), "");
+      gtk_entry_set_text (GTK_ENTRY (private->entry), "");
     }
 
-  palette_import_set_sensitive (dialog);
+  palette_import_set_sensitive (private);
 }
 
 static void
 palette_import_columns_changed (GtkAdjustment *adj,
-                                ImportDialog  *dialog)
+                                ImportDialog  *private)
 {
-  if (dialog->palette)
-    gimp_palette_set_columns (dialog->palette,
+  if (private->palette)
+    gimp_palette_set_columns (private->palette,
                               ROUND (gtk_adjustment_get_value (adj)));
 }
 
+
 /*  functions & callbacks to keep the import dialog uptodate  ****************/
 
 static void
 palette_import_image_add (GimpContainer *container,
                           GimpImage     *image,
-                          ImportDialog  *dialog)
+                          ImportDialog  *private)
 {
-  if (! gtk_widget_is_sensitive (dialog->image_radio))
+  if (! gtk_widget_is_sensitive (private->image_radio))
     {
-      gtk_widget_set_sensitive (dialog->image_radio, TRUE);
-      gimp_context_set_image (dialog->context, image);
+      gtk_widget_set_sensitive (private->image_radio, TRUE);
+      gimp_context_set_image (private->context, image);
     }
 }
 
 static void
 palette_import_image_remove (GimpContainer *container,
                              GimpImage     *image,
-                             ImportDialog  *dialog)
+                             ImportDialog  *private)
 {
-  if (! gimp_container_get_n_children (dialog->context->gimp->images))
+  if (! gimp_container_get_n_children (private->context->gimp->images))
     {
-      if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (dialog->image_radio)))
-        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->gradient_radio),
+      if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (private->image_radio)))
+        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (private->gradient_radio),
                                       TRUE);
 
-      gtk_widget_set_sensitive (dialog->image_radio, FALSE);
+      gtk_widget_set_sensitive (private->image_radio, FALSE);
     }
 }
 
 static void
-palette_import_make_palette (ImportDialog *dialog)
+palette_import_make_palette (ImportDialog *private)
 {
   GimpPalette  *palette = NULL;
   const gchar  *palette_name;
@@ -765,25 +775,25 @@ palette_import_make_palette (ImportDialog *dialog)
   gint          n_columns;
   gint          threshold;
 
-  palette_name = gtk_entry_get_text (GTK_ENTRY (dialog->entry));
+  palette_name = gtk_entry_get_text (GTK_ENTRY (private->entry));
 
   if (! palette_name || ! strlen (palette_name))
     palette_name = _("Untitled");
 
-  n_colors  = ROUND (gtk_adjustment_get_value (dialog->num_colors));
-  n_columns = ROUND (gtk_adjustment_get_value (dialog->columns));
-  threshold = ROUND (gtk_adjustment_get_value (dialog->threshold));
+  n_colors  = ROUND (gtk_adjustment_get_value (private->num_colors));
+  n_columns = ROUND (gtk_adjustment_get_value (private->columns));
+  threshold = ROUND (gtk_adjustment_get_value (private->threshold));
 
-  switch (dialog->import_type)
+  switch (private->import_type)
     {
     case GRADIENT_IMPORT:
       {
         GimpGradient *gradient;
 
-        gradient = gimp_context_get_gradient (dialog->context);
+        gradient = gimp_context_get_gradient (private->context);
 
         palette = gimp_palette_import_from_gradient (gradient,
-                                                     dialog->context,
+                                                     private->context,
                                                      FALSE,
                                                      palette_name,
                                                      n_colors);
@@ -792,28 +802,28 @@ palette_import_make_palette (ImportDialog *dialog)
 
     case IMAGE_IMPORT:
       {
-        GimpImage *image = gimp_context_get_image (dialog->context);
+        GimpImage *image = gimp_context_get_image (private->context);
         gboolean   sample_merged;
         gboolean   selection_only;
 
         sample_merged =
           gtk_toggle_button_get_active
-          (GTK_TOGGLE_BUTTON (dialog->sample_merged_toggle));
+          (GTK_TOGGLE_BUTTON (private->sample_merged_toggle));
 
         selection_only =
           gtk_toggle_button_get_active
-          (GTK_TOGGLE_BUTTON (dialog->selection_only_toggle));
+          (GTK_TOGGLE_BUTTON (private->selection_only_toggle));
 
         if (gimp_image_get_base_type (image) == GIMP_INDEXED)
           {
             palette = gimp_palette_import_from_indexed_image (image,
-                                                              dialog->context,
+                                                              private->context,
                                                               palette_name);
           }
         else if (sample_merged)
           {
             palette = gimp_palette_import_from_image (image,
-                                                      dialog->context,
+                                                      private->context,
                                                       palette_name,
                                                       n_colors,
                                                       threshold,
@@ -826,7 +836,7 @@ palette_import_make_palette (ImportDialog *dialog)
             drawable = GIMP_DRAWABLE (gimp_image_get_active_layer (image));
 
             palette = gimp_palette_import_from_drawable (drawable,
-                                                         dialog->context,
+                                                         private->context,
                                                          palette_name,
                                                          n_colors,
                                                          threshold,
@@ -840,17 +850,17 @@ palette_import_make_palette (ImportDialog *dialog)
         GFile  *file;
         GError *error = NULL;
 
-        file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog->file_chooser));
+        file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (private->file_chooser));
 
-        palette = gimp_palette_import_from_file (dialog->context,
+        palette = gimp_palette_import_from_file (private->context,
                                                  file,
                                                  palette_name, &error);
         g_object_unref (file);
 
         if (! palette)
           {
-            gimp_message_literal (dialog->context->gimp,
-                                  G_OBJECT (dialog->dialog), GIMP_MESSAGE_ERROR,
+            gimp_message_literal (private->context->gimp,
+                                  G_OBJECT (private->dialog), GIMP_MESSAGE_ERROR,
                                   error->message);
             g_error_free (error);
           }
@@ -858,20 +868,21 @@ palette_import_make_palette (ImportDialog *dialog)
       break;
     }
 
+  if (private->palette)
+    g_object_unref (private->palette);
+
+  private->palette = palette;
+
   if (palette)
     {
-      if (dialog->palette)
-        g_object_unref (dialog->palette);
-
       gimp_palette_set_columns (palette, n_columns);
 
-      gimp_view_set_viewable (GIMP_VIEW (dialog->preview),
+      gimp_view_set_viewable (GIMP_VIEW (private->preview),
                               GIMP_VIEWABLE (palette));
 
-      dialog->palette = palette;
     }
 
-  gtk_widget_set_visible (dialog->no_colors_label,
-                          dialog->palette &&
-                          gimp_palette_get_n_colors (dialog->palette) > 0);
+  gtk_widget_set_visible (private->no_colors_label,
+                          ! (palette &&
+                             gimp_palette_get_n_colors (palette) > 0));
 }
diff --git a/app/dialogs/palette-import-dialog.h b/app/dialogs/palette-import-dialog.h
index 17e5e66..264de1f 100644
--- a/app/dialogs/palette-import-dialog.h
+++ b/app/dialogs/palette-import-dialog.h
@@ -15,11 +15,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef __PALETTE_IMPORT_H__
-#define __PALETTE_IMPORT_H__
+#ifndef __PALETTE_IMPORT_DIALOG_H__
+#define __PALETTE_IMPORT_DIALOG_H__
 
 
 GtkWidget * palette_import_dialog_new (GimpContext *context);
 
 
-#endif /* __PALETTE_IMPORT_H__ */
+#endif /* __PALETTE_IMPORT_DIALOG_H__ */



[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]