223 lines
6.0 KiB
C
223 lines
6.0 KiB
C
/* gtkscrollpanepeer.c -- Native implementation of GtkScrollPanePeer
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Copyright (C) 1998, 1999, 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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#include "gtkpeer.h"
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#include "gnu_java_awt_peer_gtk_GtkScrollPanePeer.h"
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#define AWT_SCROLLPANE_SCROLLBARS_AS_NEEDED 0
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#define AWT_SCROLLPANE_SCROLLBARS_ALWAYS 1
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#define AWT_SCROLLPANE_SCROLLBARS_NEVER 2
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static GtkWidget *scrollpane_get_widget (GtkWidget *widget);
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_create
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(JNIEnv *env, jobject obj, int width, int height)
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{
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GtkWidget *sw;
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GtkWidget *eventbox;
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gdk_threads_enter ();
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/* Create global reference and save it for future use */
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gtkpeer_set_global_ref (env, obj);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_widget_set_size_request (sw, width, height);
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eventbox = gtk_event_box_new ();
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gtk_container_add (GTK_CONTAINER (eventbox), sw);
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gtk_widget_show (sw);
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gtkpeer_set_widget (env, obj, eventbox);
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gdk_threads_leave ();
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_setScrollPosition
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(JNIEnv *env, jobject obj, jint x, jint y)
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{
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GtkAdjustment *hadj, *vadj;
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GtkScrolledWindow *sw;
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void *ptr;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
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hadj = gtk_scrolled_window_get_hadjustment (sw);
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vadj = gtk_scrolled_window_get_vadjustment (sw);
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gtk_adjustment_set_value (hadj, x);
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gtk_adjustment_set_value (vadj, y);
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gdk_threads_leave ();
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_gtkScrolledWindowSetHScrollIncrement
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(JNIEnv *env, jobject obj, jint u)
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{
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GtkAdjustment *hadj;
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GtkScrolledWindow *sw;
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void *ptr;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
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hadj = gtk_scrolled_window_get_hadjustment (sw);
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hadj->step_increment = u;
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gdk_threads_leave ();
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_gtkScrolledWindowSetVScrollIncrement
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(JNIEnv *env, jobject obj, jint u)
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{
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GtkAdjustment *vadj;
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GtkScrolledWindow *sw;
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void *ptr;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
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vadj = gtk_scrolled_window_get_hadjustment (sw);
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vadj->step_increment = u;
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gdk_threads_leave ();
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}
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JNIEXPORT jint JNICALL
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Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_getHScrollbarHeight
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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GtkScrolledWindow *sw;
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GtkRequisition requisition;
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jint height = 0;
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jint spacing = 0;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
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gtk_widget_size_request (sw->hscrollbar, &requisition);
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gtk_widget_style_get (GTK_WIDGET (sw), "scrollbar_spacing", &spacing, NULL);
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height = requisition.height + spacing;
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gdk_threads_leave ();
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return height;
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}
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JNIEXPORT jint JNICALL
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Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_getVScrollbarWidth
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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GtkScrolledWindow *sw;
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GtkRequisition requisition;
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jint width = 0;
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jint spacing = 0;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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sw = GTK_SCROLLED_WINDOW (scrollpane_get_widget (GTK_WIDGET (ptr)));
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gtk_widget_size_request (sw->vscrollbar, &requisition);
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gtk_widget_style_get (GTK_WIDGET (sw), "scrollbar_spacing", &spacing, NULL);
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width = requisition.width + spacing;
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gdk_threads_leave ();
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return width;
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_setPolicy
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(JNIEnv *env, jobject obj, jint policy)
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{
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void *ptr;
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GtkWidget *sw;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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switch (policy)
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{
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case AWT_SCROLLPANE_SCROLLBARS_AS_NEEDED:
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policy = GTK_POLICY_AUTOMATIC;
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break;
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case AWT_SCROLLPANE_SCROLLBARS_ALWAYS:
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policy = GTK_POLICY_ALWAYS;
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break;
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case AWT_SCROLLPANE_SCROLLBARS_NEVER:
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policy = GTK_POLICY_NEVER;
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break;
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}
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sw = scrollpane_get_widget (GTK_WIDGET (ptr));
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), policy, policy);
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gdk_threads_leave ();
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}
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static GtkWidget *
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scrollpane_get_widget (GtkWidget *widget)
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{
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GtkWidget *wid;
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g_assert (GTK_IS_EVENT_BOX (widget));
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wid = gtk_bin_get_child (GTK_BIN(widget));
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return wid;
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}
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