1 /* gtkscrollpanepeer.c -- Native implementation of GtkScrollPanePeer
2 Copyright (C) 1998, 1999, 2002 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
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)
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.
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
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
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. */
40 #include "gnu_java_awt_peer_gtk_GtkScrollPanePeer.h"
42 #define AWT_SCROLLPANE_SCROLLBARS_AS_NEEDED 0
43 #define AWT_SCROLLPANE_SCROLLBARS_ALWAYS 1
44 #define AWT_SCROLLPANE_SCROLLBARS_NEVER 2
46 static GtkWidget *scrollpane_get_widget (GtkWidget *widget);
48 JNIEXPORT void JNICALL
49 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_create
50 (JNIEnv *env, jobject obj, int width, int height)
57 /* Create global reference and save it for future use */
58 NSA_SET_GLOBAL_REF (env, obj);
60 sw = gtk_scrolled_window_new (NULL, NULL);
61 gtk_widget_set_size_request (sw, width, height);
62 eventbox = gtk_event_box_new ();
63 gtk_container_add (GTK_CONTAINER (eventbox), sw);
66 NSA_SET_PTR (env, obj, eventbox);
71 JNIEXPORT void JNICALL
72 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_setScrollPosition
73 (JNIEnv *env, jobject obj, jint x, jint y)
75 GtkAdjustment *hadj, *vadj;
76 GtkScrolledWindow *sw;
81 ptr = NSA_GET_PTR (env, obj);
83 sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
85 hadj = gtk_scrolled_window_get_hadjustment (sw);
86 vadj = gtk_scrolled_window_get_vadjustment (sw);
88 gtk_adjustment_set_value (hadj, x);
89 gtk_adjustment_set_value (vadj, y);
94 JNIEXPORT void JNICALL
95 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_gtkScrolledWindowSetHScrollIncrement
96 (JNIEnv *env, jobject obj, jint u)
99 GtkScrolledWindow *sw;
102 gdk_threads_enter ();
104 ptr = NSA_GET_PTR (env, obj);
106 sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
108 hadj = gtk_scrolled_window_get_hadjustment (sw);
109 hadj->step_increment = u;
111 gdk_threads_leave ();
114 JNIEXPORT void JNICALL
115 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_gtkScrolledWindowSetVScrollIncrement
116 (JNIEnv *env, jobject obj, jint u)
119 GtkScrolledWindow *sw;
122 gdk_threads_enter ();
124 ptr = NSA_GET_PTR (env, obj);
126 sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
128 vadj = gtk_scrolled_window_get_hadjustment (sw);
129 vadj->step_increment = u;
131 gdk_threads_leave ();
134 JNIEXPORT jint JNICALL
135 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_getHScrollbarHeight
136 (JNIEnv *env, jobject obj)
139 GtkScrolledWindow *sw;
140 GtkRequisition requisition;
144 gdk_threads_enter ();
146 ptr = NSA_GET_PTR (env, obj);
148 sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
150 gtk_widget_size_request (sw->hscrollbar, &requisition);
151 gtk_widget_style_get (GTK_WIDGET (sw), "scrollbar_spacing", &spacing, NULL);
152 height = requisition.height + spacing;
154 gdk_threads_leave ();
159 JNIEXPORT jint JNICALL
160 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_getVScrollbarWidth
161 (JNIEnv *env, jobject obj)
164 GtkScrolledWindow *sw;
165 GtkRequisition requisition;
169 gdk_threads_enter ();
171 ptr = NSA_GET_PTR (env, obj);
173 sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
175 gtk_widget_size_request (sw->vscrollbar, &requisition);
176 gtk_widget_style_get (GTK_WIDGET (sw), "scrollbar_spacing", &spacing, NULL);
177 width = requisition.width + spacing;
179 gdk_threads_leave ();
184 JNIEXPORT void JNICALL
185 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_setPolicy
186 (JNIEnv *env, jobject obj, jint policy)
191 gdk_threads_enter ();
193 ptr = NSA_GET_PTR (env, obj);
197 case AWT_SCROLLPANE_SCROLLBARS_AS_NEEDED:
198 policy = GTK_POLICY_AUTOMATIC;
200 case AWT_SCROLLPANE_SCROLLBARS_ALWAYS:
201 policy = GTK_POLICY_ALWAYS;
203 case AWT_SCROLLPANE_SCROLLBARS_NEVER:
204 policy = GTK_POLICY_NEVER;
208 sw = scrollpane_get_widget (GTK_WIDGET (ptr));
209 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), policy, policy);
211 gdk_threads_leave ();
215 scrollpane_get_widget (GtkWidget *widget)
218 g_assert (GTK_IS_EVENT_BOX (widget));
219 wid = gtk_bin_get_child (GTK_BIN(widget));