1 /* gtkcheckboxpeer.c -- Native implementation of GtkCheckboxPeer
2 Copyright (C) 1998, 1999, 2002, 2003, 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA
19 02110-1301 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_GtkCheckboxPeer.h"
41 #include "gnu_java_awt_peer_gtk_GtkComponentPeer.h"
42
43 static jmethodID postItemEventID;
44
45 void
cp_gtk_checkbox_init_jni(void)46 cp_gtk_checkbox_init_jni (void)
47 {
48 jclass gtkcheckboxpeer;
49
50 gtkcheckboxpeer = (*cp_gtk_gdk_env())->FindClass (cp_gtk_gdk_env(),
51 "gnu/java/awt/peer/gtk/GtkCheckboxPeer");
52
53 postItemEventID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), gtkcheckboxpeer,
54 "postItemEvent",
55 "(Ljava/lang/Object;I)V");
56 }
57
58 static void item_toggled_cb (GtkToggleButton *item, jobject peer);
59
60 JNIEXPORT void JNICALL
Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_create(JNIEnv * env,jobject obj,jobject group)61 Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_create
62 (JNIEnv *env, jobject obj, jobject group)
63 {
64 GtkWidget *button;
65
66 gdk_threads_enter ();
67
68 NSA_SET_GLOBAL_REF (env, obj);
69
70 if (group == NULL)
71 button = gtk_check_button_new_with_label ("");
72 else
73 {
74 void *native_group = NSA_GET_PTR (env, group);
75 button = gtk_radio_button_new_with_label_from_widget (native_group, "");
76 if (native_group == NULL)
77 {
78 /* Set the native group so we can use the correct value the
79 next time around. FIXME: this doesn't work! */
80 NSA_SET_PTR (env, group, button);
81 }
82 }
83
84 NSA_SET_PTR (env, obj, button);
85
86 gdk_threads_leave ();
87 }
88
89 JNIEXPORT void JNICALL
Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_connectSignals(JNIEnv * env,jobject obj)90 Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_connectSignals
91 (JNIEnv *env, jobject obj)
92 {
93 void *ptr = NULL;
94 jobject *gref = NULL;
95
96 gdk_threads_enter ();
97
98 ptr = NSA_GET_PTR (env, obj);
99 gref = NSA_GET_GLOBAL_REF (env, obj);
100
101 /* Checkbox signals */
102 g_signal_connect (G_OBJECT (ptr), "toggled",
103 G_CALLBACK (item_toggled_cb), *gref);
104
105 /* Component signals */
106 cp_gtk_component_connect_signals (G_OBJECT (ptr), gref);
107
108 gdk_threads_leave ();
109 }
110
111 JNIEXPORT void JNICALL
Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_nativeSetCheckboxGroup(JNIEnv * env,jobject obj,jobject group)112 Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_nativeSetCheckboxGroup
113 (JNIEnv *env, jobject obj, jobject group)
114 {
115 GtkRadioButton *button;
116 void *native_group, *ptr;
117
118 gdk_threads_enter ();
119
120 ptr = NSA_GET_PTR (env, obj);
121
122 /* FIXME: we can't yet switch between a checkbutton and a
123 radiobutton. However, AWT requires this. For now we just
124 crash. */
125
126 button = GTK_RADIO_BUTTON (ptr);
127
128 native_group = NSA_GET_PTR (env, group);
129 if (native_group == NULL)
130 gtk_radio_button_set_group (button, NULL);
131 else
132 gtk_radio_button_set_group (button,
133 gtk_radio_button_get_group
134 (GTK_RADIO_BUTTON (native_group)));
135
136 /* If the native group wasn't set on the new CheckboxGroup, then set
137 it now so that the right thing will happen with the next
138 radiobutton. The native state for a CheckboxGroup is a pointer
139 to one of the widgets in the group. We are careful to keep this
140 always pointing at a live widget; whenever a widget is destroyed
141 (or otherwise removed from the group), the CheckboxGroup peer is
142 notified. */
143 if (native_group == NULL)
144 NSA_SET_PTR (env, group, native_group);
145
146 gdk_threads_leave ();
147 }
148
149 JNIEXPORT void JNICALL
Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkToggleButtonSetActive(JNIEnv * env,jobject obj,jboolean is_active)150 Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkToggleButtonSetActive
151 (JNIEnv *env, jobject obj, jboolean is_active)
152 {
153 void *ptr;
154
155 gdk_threads_enter ();
156
157 ptr = NSA_GET_PTR (env, obj);
158
159 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (ptr), is_active);
160
161 gdk_threads_leave ();
162 }
163
164 JNIEXPORT void JNICALL
Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkWidgetModifyFont(JNIEnv * env,jobject obj,jstring name,jint style,jint size)165 Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkWidgetModifyFont
166 (JNIEnv *env, jobject obj, jstring name, jint style, jint size)
167 {
168 const char *font_name;
169 void *ptr;
170 GtkWidget *button;
171 GtkWidget *label;
172 PangoFontDescription *font_desc;
173
174 gdk_threads_enter();
175
176 ptr = NSA_GET_PTR (env, obj);
177
178 button = GTK_WIDGET (ptr);
179 label = gtk_bin_get_child (GTK_BIN(button));
180
181 if (!label)
182 return;
183
184 font_name = (*env)->GetStringUTFChars (env, name, NULL);
185
186 font_desc = pango_font_description_from_string (font_name);
187 pango_font_description_set_size (font_desc,
188 size * cp_gtk_dpi_conversion_factor);
189
190 if (style & AWT_STYLE_BOLD)
191 pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);
192
193 if (style & AWT_STYLE_ITALIC)
194 pango_font_description_set_style (font_desc, PANGO_STYLE_OBLIQUE);
195
196 gtk_widget_modify_font (GTK_WIDGET(label), font_desc);
197
198 pango_font_description_free (font_desc);
199
200 (*env)->ReleaseStringUTFChars (env, name, font_name);
201
202 gdk_threads_leave();
203 }
204
205 JNIEXPORT void JNICALL
Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkButtonSetLabel(JNIEnv * env,jobject obj,jstring label)206 Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkButtonSetLabel
207 (JNIEnv *env, jobject obj, jstring label)
208 {
209 const char *c_label;
210 GtkWidget *label_widget;
211 void *ptr;
212
213 gdk_threads_enter ();
214
215 ptr = NSA_GET_PTR (env, obj);
216
217 c_label = (*env)->GetStringUTFChars (env, label, NULL);
218
219 label_widget = gtk_bin_get_child (GTK_BIN (ptr));
220 gtk_label_set_text (GTK_LABEL (label_widget), c_label);
221
222 (*env)->ReleaseStringUTFChars (env, label, c_label);
223
224 gdk_threads_leave ();
225 }
226
227 static void
item_toggled_cb(GtkToggleButton * item,jobject peer)228 item_toggled_cb (GtkToggleButton *item, jobject peer)
229 {
230 (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), peer,
231 postItemEventID,
232 peer,
233 item->active ?
234 (jint) AWT_ITEM_SELECTED :
235 (jint) AWT_ITEM_DESELECTED);
236 }
237