diff options
Diffstat (limited to 'libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxPeer.c')
| -rw-r--r-- | libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxPeer.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxPeer.c b/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxPeer.c new file mode 100644 index 00000000000..09fa7ef21b5 --- /dev/null +++ b/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkCheckboxPeer.c @@ -0,0 +1,175 @@ +/* gtkcheckboxpeer.c -- Native implementation of GtkCheckboxPeer + Copyright (C) 1998, 1999, 2002 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +02111-1307 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +#include "gtkpeer.h" +#include "gnu_java_awt_peer_gtk_GtkCheckboxPeer.h" +#include "gnu_java_awt_peer_gtk_GtkComponentPeer.h" + +static void item_toggled (GtkToggleButton *item, jobject peer); + +JNIEXPORT void JNICALL Java_gnu_java_awt_peer_gtk_GtkCheckboxGroupPeer_dispose + (JNIEnv *env, jobject obj) +{ + /* The actual underlying widget is owned by a different class. So + we just clean up the hash table here. */ + NSA_DEL_PTR (env, obj); +} + +JNIEXPORT void JNICALL Java_gnu_java_awt_peer_gtk_GtkCheckboxGroupPeer_remove + (JNIEnv *env, jobject obj, jobject checkbox) +{ + GtkRadioButton *button; + void *ptr; + GSList *list; + + ptr = NSA_GET_PTR (env, checkbox); + gdk_threads_enter (); + button = GTK_RADIO_BUTTON (ptr); + + /* Update the group to point to some other widget in the group. We + have to do this because Gtk doesn't have a separate object to + represent a radio button's group. */ + for (list = gtk_radio_button_group (button); list != NULL; + list = list->next) + { + if (list->data != button) + break; + } + + gdk_threads_leave (); + + NSA_SET_PTR (env, obj, list ? list->data : NULL); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_nativeCreate + (JNIEnv *env, jobject obj, jobject group) +{ + GtkWidget *button; + + gdk_threads_enter (); + + if (group == NULL) + button = gtk_check_button_new_with_label (""); + else + { + void *native_group = NSA_GET_PTR (env, group); + button = gtk_radio_button_new_with_label_from_widget (native_group, ""); + if (native_group == NULL) + { + /* Set the native group so we can use the correct value the + next time around. FIXME: this doesn't work! */ + NSA_SET_PTR (env, group, button); + } + } + + gdk_threads_leave (); + + NSA_SET_PTR (env, obj, button); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_connectHooks + (JNIEnv *env, jobject obj) +{ + void *ptr = NSA_GET_PTR (env, obj); + jobject peer; + + gdk_threads_enter (); + + peer = (*env)->NewGlobalRef (env, obj); + + /* FIXME: when the widget goes away, we should get rid of the global + reference. */ + gtk_signal_connect (GTK_OBJECT (ptr), "toggled", + GTK_SIGNAL_FUNC (item_toggled), peer); + + gdk_threads_leave (); + + /* Connect the superclass hooks. */ + Java_gnu_java_awt_peer_gtk_GtkComponentPeer_connectHooks (env, obj); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_nativeSetCheckboxGroup + (JNIEnv *env, jobject obj, jobject group) +{ + GtkRadioButton *button; + void *native_group, *ptr; + + ptr = NSA_GET_PTR (env, obj); + + gdk_threads_enter (); + + /* FIXME: we can't yet switch between a checkbutton and a + radiobutton. However, AWT requires this. For now we just + crash. */ + + button = GTK_RADIO_BUTTON (ptr); + + native_group = NSA_GET_PTR (env, group); + if (native_group == NULL) + gtk_radio_button_set_group (button, NULL); + else + gtk_radio_button_set_group (button, + gtk_radio_button_group + (GTK_RADIO_BUTTON (native_group))); + + gdk_threads_leave (); + + /* If the native group wasn't set on the new CheckboxGroup, then set + it now so that the right thing will happen with the next + radiobutton. The native state for a CheckboxGroup is a pointer + to one of the widgets in the group. We are careful to keep this + always pointing at a live widget; whenever a widget is destroyed + (or otherwise removed from the group), the CheckboxGroup peer is + notified. */ + if (native_group == NULL) + NSA_SET_PTR (env, group, native_group); +} + +static void +item_toggled (GtkToggleButton *item, jobject peer) +{ + (*gdk_env)->CallVoidMethod (gdk_env, peer, + postItemEventID, + peer, + item->active ? + (jint) AWT_ITEM_SELECTED : + (jint) AWT_ITEM_DESELECTED); +} |
