mdw@git.distorted.org.uk Git - mgLib/blob - cancel.c

   1 /* -*-c-*-
   2  *
   3  * $Id: cancel.c,v 1.6 2004/04/08 01:36:14 mdw Exp $
   4  *
   5  * Handle Escape keypresses, directing them to cancel buttons
   6  *
   7  * (c) 1998 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of the mgLib GTK utilities library.
  13  *
  14  * mgLib is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * mgLib is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with mgLib; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- Header files ------------------------------------------------------*/
  31
  32 #include <gtk/gtk.h>
  33 #include <gdk/gdkkeysyms.h>
  34
  35 #include "cancel.h"
  36
  37 /*----- Main code ---------------------------------------------------------*/
  38
  39 /* --- @cancel@ --- *
  40  *
  41  * Arguments:   @GtkWindow *win@ = window in which this is happening
  42  *              @GtkWidget *w@ = widget to activate, or null
  43  *
  44  * Returns:     ---
  45  *
  46  * Use:         Sets up @win@ so that a press of `escape' will activate
  47  *              @w@ or destroy @win@.
  48  */
  49
  50 static gboolean cancel_press(GtkWidget *w, GdkEventKey *ev, gpointer *p)
  51 {
  52   if (ev->keyval == GDK_Escape) {
  53     if (p)
  54       gtk_widget_activate(GTK_WIDGET(p));
  55     else
  56       gtk_object_destroy(GTK_OBJECT(w));
  57     return (1);
  58   }
  59   return (0);
  60 }
  61
  62 void cancel(GtkWindow *win, GtkWidget *w)
  63 {
  64   gtk_signal_connect(GTK_OBJECT(win), "key_press_event",
  65                      GTK_SIGNAL_FUNC(cancel_press), w);
  66 }
  67
  68 /*----- That's all, folks -------------------------------------------------*/