pickers.c

Linux下gtk图形界面开发的各种gtk控件调用方法示例

/* Pickers 
 *
 * These widgets are mainly intended for use in preference dialogs.
 * They allow to select colors, fonts, files and directories.
 */

#include <gtk/gtk.h>

GtkWidget *
do_pickers (GtkWidget *do_widget)
{
  static GtkWidget *window = NULL;
  GtkWidget *table, *label, *picker;

  if (!window)
  {
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_screen (GTK_WINDOW (window),
                           gtk_widget_get_screen (do_widget));
    gtk_window_set_title (GTK_WINDOW (window), "Pickers");
   
    g_signal_connect (window, "destroy",
                      G_CALLBACK (gtk_widget_destroyed),
                      &window);
    
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);

    table = gtk_table_new (4, 2, FALSE);    
    gtk_table_set_col_spacing (GTK_TABLE (table), 0, 10);
    gtk_table_set_row_spacings (GTK_TABLE (table), 3);
    gtk_container_add (GTK_CONTAINER (window), table);

    gtk_container_set_border_width (GTK_CONTAINER (table), 10);

    label = gtk_label_new ("Color:");
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
    picker = gtk_color_button_new ();
    gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 0, 1);
    gtk_table_attach_defaults (GTK_TABLE (table), picker, 1, 2, 0, 1);

    label = gtk_label_new ("Font:");
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
    picker = gtk_font_button_new ();
    gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 1, 2);
    gtk_table_attach_defaults (GTK_TABLE (table), picker, 1, 2, 1, 2);

    label = gtk_label_new ("File:");
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
    picker = gtk_file_chooser_button_new ("Pick a File", 
                                          GTK_FILE_CHOOSER_ACTION_OPEN);
    gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 2, 3);
    gtk_table_attach_defaults (GTK_TABLE (table), picker, 1, 2, 2, 3);

    label = gtk_label_new ("Folder:");
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
    picker = gtk_file_chooser_button_new ("Pick a Folder", 
                                          GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
    gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 3, 4);
    gtk_table_attach_defaults (GTK_TABLE (table), picker, 1, 2, 3, 4);
  }

  if (!GTK_WIDGET_VISIBLE (window))
    {
      gtk_widget_show_all (window);
    }
  else
    {    
      gtk_widget_destroy (window);
      window = NULL;
    }

  return window;
}