libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkMenuPeer.c

   1 /* gtkmenupeer.c -- Native implementation of GtkMenuPeer
   2    Copyright (C) 1999 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 #include "gtkpeer.h"
  40 #include "gnu_java_awt_peer_gtk_GtkMenuPeer.h"
  41
  42 static void
  43 accel_attach (GtkMenuItem *menu_item,
  44               gpointer *user_data __attribute__((unused)))
  45 {
  46   GtkAccelGroup *accel;
  47
  48   accel = gtk_menu_get_accel_group (GTK_MENU (menu_item->submenu));
  49   _gtk_accel_group_attach (accel,
  50     G_OBJECT (gtk_widget_get_toplevel (GTK_WIDGET(menu_item))));
  51 }
  52
  53 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_gtk_GtkMenuPeer_setupAccelGroup
  54   (JNIEnv *env, jobject obj, jobject parent)
  55 {
  56   void *ptr1, *ptr2;
  57
  58   ptr1 = NSA_GET_PTR (env, obj);
  59
  60   gdk_threads_enter ();
  61   if (!parent)
  62     {
  63       gtk_menu_set_accel_group (GTK_MENU (GTK_MENU_ITEM (ptr1)->submenu),
  64                                 gtk_accel_group_new ());
  65
  66       if (GTK_WIDGET_REALIZED (GTK_WIDGET (ptr1)))
  67         accel_attach (GTK_MENU_ITEM (ptr1), NULL);
  68       else
  69         g_signal_connect (G_OBJECT (ptr1),
  70                             "realize",
  71                             GTK_SIGNAL_FUNC (accel_attach),
  72                             NULL);
  73     }
  74   else
  75     {
  76       GtkAccelGroup *parent_accel;
  77
  78       ptr2 = NSA_GET_PTR (env, parent);
  79       parent_accel = gtk_menu_get_accel_group (GTK_MENU (GTK_MENU_ITEM (ptr2)->submenu));
  80
  81       gtk_menu_set_accel_group (GTK_MENU (GTK_MENU_ITEM (ptr1)->submenu),
  82                                 parent_accel);
  83     }
  84
  85   gdk_threads_leave ();
  86 }
  87
  88
  89 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_gtk_GtkMenuPeer_create
  90   (JNIEnv *env, jobject obj, jstring label)
  91 {
  92   GtkWidget *menu_title, *menu;
  93   const char *str;
  94
  95   /* Create global reference and save it for future use */
  96   NSA_SET_GLOBAL_REF (env, obj);
  97
  98   str = (*env)->GetStringUTFChars (env, label, NULL);
  99
 100   gdk_threads_enter ();
 101
 102   menu = gtk_menu_new ();
 103
 104   menu_title = gtk_menu_item_new_with_label (str);
 105   gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_title), menu);
 106
 107   gtk_widget_show (menu);
 108   gtk_widget_show (menu_title);
 109
 110   NSA_SET_PTR (env, obj, menu_title);
 111
 112   gdk_threads_leave ();
 113
 114   (*env)->ReleaseStringUTFChars (env, label, str);
 115 }
 116
 117 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_gtk_GtkMenuPeer_addItem
 118   (JNIEnv *env, jobject obj, jobject menuitempeer, jint key, jboolean shift)
 119 {
 120   void *ptr1, *ptr2;
 121   GtkMenu *menu;
 122
 123   ptr1 = NSA_GET_PTR (env, obj);
 124   ptr2 = NSA_GET_PTR (env, menuitempeer);
 125
 126   gdk_threads_enter ();
 127
 128   menu = GTK_MENU (GTK_MENU_ITEM (ptr1)->submenu);
 129   gtk_menu_append (menu, GTK_WIDGET (ptr2));
 130
 131   if (key)
 132     {
 133       gtk_widget_add_accelerator (GTK_WIDGET (ptr2), "activate",
 134                                   gtk_menu_get_accel_group (menu), key,
 135                                   (GDK_CONTROL_MASK
 136                                    | ((shift) ? GDK_SHIFT_MASK : 0)),
 137                                   GTK_ACCEL_VISIBLE);
 138     }
 139
 140   gdk_threads_leave ();
 141 }
 142
 143 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_gtk_GtkMenuPeer_delItem
 144   (JNIEnv *env, jobject obj, jint index)
 145 {
 146   void *ptr;
 147   GList *list;
 148
 149   ptr = NSA_GET_PTR (env, obj);
 150
 151   gdk_threads_enter ();
 152   list = gtk_container_children (GTK_CONTAINER (ptr));
 153   list = g_list_nth (list, index);
 154   gtk_container_remove (GTK_CONTAINER (ptr), GTK_WIDGET (list->data));
 155   gdk_threads_leave ();
 156 }
 157
 158