+
+/*******************************************************
+ * Background Area *
+ *******************************************************/
+static void
+cell_spacing_changed (GtkSpinButton *spin_button,
+ GtkIconView *iconview)
+{
+ GtkCellArea *area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (iconview));
+ gint value;
+
+ value = (gint)gtk_spin_button_get_value (spin_button);
+
+ gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (area), value);
+}
+
+static void
+row_spacing_changed (GtkSpinButton *spin_button,
+ GtkIconView *iconview)
+{
+ gint value;
+
+ value = (gint)gtk_spin_button_get_value (spin_button);
+
+ gtk_icon_view_set_row_spacing (iconview, value);
+}
+
+static void
+item_padding_changed (GtkSpinButton *spin_button,
+ GtkIconView *iconview)
+{
+ gint value;
+
+ value = (gint)gtk_spin_button_get_value (spin_button);
+
+ gtk_icon_view_set_item_padding (iconview, value);
+}
+
+static void
+background_area (void)
+{
+ GtkWidget *window, *widget, *label, *main_vbox;
+ GtkWidget *iconview, *frame, *vbox, *hbox;
+
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+ main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
+ gtk_widget_show (hbox);
+ gtk_widget_show (main_vbox);
+ gtk_container_add (GTK_CONTAINER (window), main_vbox);
+
+ gtk_window_set_title (GTK_WINDOW (window), "Background Area");
+
+ label = gtk_label_new ("In this example, row spacing gets devided into the background area, "
+ "column spacing is added between each background area, item_padding is "
+ "prepended space distributed to the background area.");
+ gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
+ gtk_label_set_width_chars (GTK_LABEL (label), 40);
+ gtk_widget_show (label);
+ gtk_box_pack_start (GTK_BOX (main_vbox), label, FALSE, FALSE, 0);
+
+ iconview = focus_iconview (TRUE, NULL, NULL);
+
+ frame = gtk_frame_new (NULL);
+ gtk_widget_show (frame);
+
+ gtk_widget_set_valign (frame, GTK_ALIGN_CENTER);
+ gtk_widget_set_halign (frame, GTK_ALIGN_FILL);
+
+ gtk_container_add (GTK_CONTAINER (frame), iconview);
+
+ gtk_box_pack_end (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
+
+ /* Now add some controls */
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
+ gtk_widget_show (vbox);
+ gtk_box_pack_end (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
+
+ widget = gtk_combo_box_text_new ();
+ gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), "Horizontal");
+ gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), "Vertical");
+ gtk_combo_box_set_active (GTK_COMBO_BOX (widget), 0);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (vbox), widget, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "changed",
+ G_CALLBACK (orientation_changed), iconview);
+
+ widget = gtk_spin_button_new_with_range (0, 10, 1);
+ label = gtk_label_new ("Cell spacing");
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+ gtk_widget_show (hbox);
+ gtk_widget_show (label);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
+ gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "value-changed",
+ G_CALLBACK (cell_spacing_changed), iconview);
+
+
+ widget = gtk_spin_button_new_with_range (0, 10, 1);
+ gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), gtk_icon_view_get_row_spacing (GTK_ICON_VIEW (iconview)));
+ label = gtk_label_new ("Row spacing");
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+ gtk_widget_show (hbox);
+ gtk_widget_show (label);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
+ gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "value-changed",
+ G_CALLBACK (row_spacing_changed), iconview);
+
+ widget = gtk_spin_button_new_with_range (0, 30, 1);
+ label = gtk_label_new ("Item padding");
+ gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), gtk_icon_view_get_item_padding (GTK_ICON_VIEW (iconview)));
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+ gtk_widget_show (hbox);
+ gtk_widget_show (label);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
+ gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "value-changed",
+ G_CALLBACK (item_padding_changed), iconview);
+
+ gtk_widget_show (window);
+}
+
+
+
+
+
+