diff options
Diffstat (limited to 'libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollBarPeer.c')
| -rw-r--r-- | libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollBarPeer.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollBarPeer.c b/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollBarPeer.c new file mode 100644 index 00000000000..4b8787e7d93 --- /dev/null +++ b/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollBarPeer.c @@ -0,0 +1,183 @@ +/* gtkscrollbarpeer.c -- Native implementation of GtkScrollbarPeer + Copyright (C) 1998, 1999 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_GtkScrollbarPeer.h" + +struct range_scrollbar +{ + GtkRange *range; + jobject *scrollbar; +}; + +static void +post_adjustment_event (GtkAdjustment *adj, struct range_scrollbar *rs) +{ + jint type; + + switch (rs->range->scroll_type) + { + case GTK_SCROLL_STEP_FORWARD: + type = AWT_ADJUSTMENT_UNIT_INCREMENT; + break; + case GTK_SCROLL_STEP_BACKWARD: + type = AWT_ADJUSTMENT_UNIT_DECREMENT; + break; + case GTK_SCROLL_PAGE_FORWARD: + type = AWT_ADJUSTMENT_BLOCK_INCREMENT; + break; + case GTK_SCROLL_PAGE_BACKWARD: + type = AWT_ADJUSTMENT_BLOCK_DECREMENT; + break; + case GTK_SCROLL_JUMP: + type = AWT_ADJUSTMENT_TRACK; + break; + default: /* GTK_SCROLL_NONE */ + return; + } + + (*gdk_env)->CallVoidMethod (gdk_env, *(rs->scrollbar), postAdjustmentEventID, + type, (jint) adj->value); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkScrollbarPeer_create +(JNIEnv *env, jobject obj, jint orientation, jint value, + jint min, jint max, jint step_incr, jint page_incr, jint visible_amount) +{ + GtkWidget *sb; + GtkObject *adj; + + gdk_threads_enter (); + adj = gtk_adjustment_new (value, min, max, + step_incr, page_incr, + visible_amount); + + sb = (orientation) ? gtk_vscrollbar_new (GTK_ADJUSTMENT (adj)) : + gtk_hscrollbar_new (GTK_ADJUSTMENT (adj)); + gdk_threads_leave (); + + NSA_SET_PTR (env, obj, sb); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkScrollbarPeer_connectHooks + (JNIEnv *env, jobject obj) +{ + void *ptr; + struct range_scrollbar *rs; + + rs = (struct range_scrollbar *) malloc (sizeof (struct range_scrollbar)); + + ptr = NSA_GET_PTR (env, obj); + + gdk_threads_enter (); + gtk_widget_realize (GTK_WIDGET (ptr)); + + rs->range = GTK_RANGE (ptr); + rs->scrollbar = (jobject *) malloc (sizeof (jobject)); + *(rs->scrollbar) = (*env)->NewGlobalRef (env, obj); + gtk_signal_connect (GTK_OBJECT (GTK_RANGE (ptr)->adjustment), + "value_changed", + GTK_SIGNAL_FUNC (post_adjustment_event), rs); + + connect_awt_hook (env, obj, 4, + GTK_RANGE (ptr)->trough, + GTK_RANGE (ptr)->slider, + GTK_RANGE (ptr)->step_forw, + GTK_RANGE (ptr)->step_back); + gdk_threads_leave (); +} + + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkScrollbarPeer_setLineIncrement + (JNIEnv *env, jobject obj, jint amount) +{ + void *ptr; + GtkAdjustment *adj; + + ptr = NSA_GET_PTR (env, obj); + + gdk_threads_enter (); + + adj = GTK_RANGE (ptr)->adjustment; + adj->step_increment = amount; + gtk_adjustment_changed (adj); + + gdk_threads_leave (); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkScrollbarPeer_setPageIncrement + (JNIEnv *env, jobject obj, jint amount) +{ + void *ptr; + GtkAdjustment *adj; + + ptr = NSA_GET_PTR (env, obj); + + gdk_threads_enter (); + + adj = GTK_RANGE (ptr)->adjustment; + adj->page_increment = amount; + gtk_adjustment_changed (adj); + + gdk_threads_leave (); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkScrollbarPeer_setValues + (JNIEnv *env, jobject obj, jint value, jint visible, jint min, jint max) +{ + void *ptr; + GtkAdjustment *adj; + + ptr = NSA_GET_PTR (env, obj); + + gdk_threads_enter (); + + adj = GTK_RANGE (ptr)->adjustment; + adj->value = value; + adj->page_size = visible; + adj->lower = min; + adj->upper = max; + gtk_adjustment_changed (adj); + + gdk_threads_leave (); +} |
