fpc/packages/gtk1/examples/tutorial/tut6_1.pp

{

  This file extracted from the GTK 1.2 tutorial.
  Section 6.1

  Converted from C to Pascal by Thomas E. Payne
}
 program Tut6_1;

{$mode objfpc}

 uses
  glib,gdk,gtk,sysutils;

  //* Create a new hbox with an image and a label packed into it
  //* and return the box. */
   function xpm_label_box( parent: pGtkWidget;
                           xpm_filename : pchar;
                           label_text : pchar ): pGtkWidget; cdecl;
   var

     box1, label_,pixmapwid : pGtkWidget;
     pixmap :   pGdkPixmap;
     mask   : pGdkBitmap;
     style  : pGtkStyle;
   begin
     //* Create box for xpm and label */
     box1 := gtk_hbox_new (FALSE, 0);
     gtk_container_set_border_width (GTK_CONTAINER (box1), 2);
     //* Get the style of the button to get the background color. */
     style := gtk_widget_get_style(parent);
     //* Now on to the xpm stuff */
     //function  gdk_pixmap_create_from_xpm(window:PGdkWindow;
     //mask:PPGdkBitmap;
     // transparent_color:PGdkColor; filename:Pgchar):PGdkPixmap;

     pixmap := gdk_pixmap_create_from_xpm (parent^.window, @mask,
                                          @style^.bg[GTK_STATE_NORMAL],
                                          xpm_filename);
     pixmapwid := gtk_pixmap_new (pixmap, mask);
     //* Create a label for the button */
     label_ := gtk_label_new (label_text);
     //* Pack the pixmap and label into the box */
     gtk_box_pack_start (GTK_BOX (box1),
                         pixmapwid, FALSE, FALSE, 3);
     gtk_box_pack_start (GTK_BOX (box1), label_, FALSE, FALSE, 3);
     gtk_widget_show(pixmapwid);
     gtk_widget_show(label_);
     xpm_label_box := box1;
   end;

   //* Our usual callback function */
 procedure callback( widget : pGtkWidget; data : pgpointer   );cdecl;
   begin
     writeln ('Hello again - '+pchar(data)+' was pressed');
   end;

  var
    //* GtkWidget is the storage type for widgets */
    window,button,box1 : pGtkWidget;
  begin
     gtk_init (@argc, @argv);
     //* Create a new window */
     window := gtk_window_new (GTK_WINDOW_TOPLEVEL);
     gtk_window_set_title (GTK_WINDOW (window), 'Pixmap''d Buttons!');
     //* It's a good idea to do this for all windows. */
     gtk_signal_connect (GTK_OBJECT (window), 'destroy',
                         GTK_SIGNAL_FUNC (@gtk_exit), Nil);
     gtk_signal_connect (GTK_OBJECT (window), 'delete_event',
                         GTK_SIGNAL_FUNC (@gtk_exit), Nil);
     //* Sets the border width of the window. */
     gtk_container_set_border_width (GTK_CONTAINER (window), 10);
     gtk_widget_realize(window);
     //* Create a new button */
     button := gtk_button_new ();
     //* Connect the "clicked" signal of the button to our callback */
     gtk_signal_connect (GTK_OBJECT (button), 'clicked',
                         GTK_SIGNAL_FUNC (@callback), pchar('cool button'));
     //* This calls our box creating function */
     box1 := xpm_label_box(window, 'info.xpm', 'cool button');
     //* Pack and show all our widgets */
     gtk_widget_show(box1);
     gtk_container_add (GTK_CONTAINER (button), box1);
     gtk_widget_show(button);
     gtk_container_add (GTK_CONTAINER (window), button);
     gtk_widget_show (window);
     //* Rest in gtk_main and wait for the fun to begin! */
     gtk_main ();
 end.