From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../gnu_java_awt_peer_gtk_GtkScrollbarPeer.c | 296 +++++++++++++++++++++ 1 file changed, 296 insertions(+) create mode 100644 libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollbarPeer.c (limited to 'libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollbarPeer.c') diff --git a/libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollbarPeer.c b/libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollbarPeer.c new file mode 100644 index 000000000..64d91d2b2 --- /dev/null +++ b/libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollbarPeer.c @@ -0,0 +1,296 @@ +/* gtkscrollbarpeer.c -- Native implementation of GtkScrollbarPeer + Copyright (C) 1998, 1999, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 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 +#include "gtkpeer.h" +#include "gnu_java_awt_peer_gtk_GtkComponentPeer.h" +#include "gnu_java_awt_peer_gtk_GtkScrollbarPeer.h" + +#define AWT_ADJUSTMENT_UNIT_INCREMENT 1 +#define AWT_ADJUSTMENT_UNIT_DECREMENT 2 +#define AWT_ADJUSTMENT_BLOCK_DECREMENT 3 +#define AWT_ADJUSTMENT_BLOCK_INCREMENT 4 +#define AWT_ADJUSTMENT_TRACK 5 + +static jmethodID postAdjustmentEventID; +static GtkWidget *scrollbar_get_widget (GtkWidget *widget); + +void +cp_gtk_scrollbar_init_jni (void) +{ + jclass gtkscrollbarpeer; + + gtkscrollbarpeer = (*cp_gtk_gdk_env())->FindClass (cp_gtk_gdk_env(), + "gnu/java/awt/peer/gtk/GtkScrollbarPeer"); + + postAdjustmentEventID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), + gtkscrollbarpeer, + "postAdjustmentEvent", + "(II)V"); +} + +#if GTK_MINOR_VERSION > 4 +static gboolean slider_moved_cb (GtkRange *range, + GtkScrollType scroll, + gdouble value, + jobject obj); +#else +static void post_change_event_cb (GtkRange *range, + jobject peer); +#endif + +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 *scrollbar; + GtkWidget *eventbox; + GtkObject *adj; + + /* Create global reference and save it for future use */ + gtkpeer_set_global_ref (env, obj); + + gdk_threads_enter (); + + /* A little hack because gtk_range_set_range() doesn't allow min == max. */ + if (min == max) + { + if (visible_amount == 0) + visible_amount = 1; + max++; + } + + adj = gtk_adjustment_new ((gdouble) value, + (gdouble) min, + (gdouble) max, + (gdouble) step_incr, + (gdouble) page_incr, + (gdouble) visible_amount); + + scrollbar = orientation + ? gtk_vscrollbar_new (GTK_ADJUSTMENT (adj)) + : gtk_hscrollbar_new (GTK_ADJUSTMENT (adj)); + eventbox = gtk_event_box_new (); + gtk_container_add (GTK_CONTAINER (eventbox), scrollbar); + gtk_widget_show (scrollbar); + + GTK_RANGE (scrollbar)->round_digits = 0; + /* These calls seem redundant but they are not. They clamp values + so that the slider's entirety is always between the two + steppers. */ + gtk_range_set_range (GTK_RANGE (scrollbar), (gdouble) min, (gdouble) max); + gtk_range_set_value (GTK_RANGE (scrollbar), (gdouble) value); + + gdk_threads_leave (); + + gtkpeer_set_widget (env, obj, eventbox); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkScrollbarPeer_connectSignals + (JNIEnv *env, jobject obj) +{ + void *ptr = gtkpeer_get_widget (env, obj); + GtkWidget *wid = scrollbar_get_widget (GTK_WIDGET (ptr)); + jobject gref = gtkpeer_get_global_ref (env, obj); + g_assert (gref); + + gdk_threads_enter (); + + /* Scrollbar signals */ +#if GTK_MINOR_VERSION > 4 + g_signal_connect (G_OBJECT (wid), "change-value", + G_CALLBACK (slider_moved_cb), gref); +#else + g_signal_connect (G_OBJECT (wid), "value-changed", + G_CALLBACK (post_change_event_cb), gref); +#endif + + /* Component signals */ + cp_gtk_component_connect_signals (G_OBJECT (wid), gref); + + gdk_threads_leave (); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkScrollbarPeer_setLineIncrement + (JNIEnv *env, jobject obj, jint amount) +{ + void *ptr; + GtkAdjustment *adj; + GtkWidget *wid; + + ptr = gtkpeer_get_widget (env, obj); + wid = scrollbar_get_widget (GTK_WIDGET (ptr)); + + gdk_threads_enter (); + + adj = gtk_range_get_adjustment (GTK_RANGE (wid)); + adj->step_increment = (gdouble) 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; + GtkWidget *wid; + + ptr = gtkpeer_get_widget (env, obj); + wid = scrollbar_get_widget (GTK_WIDGET (ptr)); + + gdk_threads_enter (); + + adj = gtk_range_get_adjustment (GTK_RANGE (wid)); + adj->page_increment = (gdouble) amount; + gtk_adjustment_changed (adj); + + gdk_threads_leave (); +} + +JNIEXPORT void JNICALL +Java_gnu_java_awt_peer_gtk_GtkScrollbarPeer_setBarValues + (JNIEnv *env, jobject obj, jint value, jint visible, jint min, jint max) +{ + void *ptr; + GtkAdjustment *adj; + GtkWidget *wid; + + ptr = gtkpeer_get_widget (env, obj); + wid = scrollbar_get_widget (GTK_WIDGET (ptr)); + + gdk_threads_enter (); + + /* A little hack because gtk_range_set_range() doesn't allow min == max. */ + if (min == max) + { + if (visible == 0) + visible = 1; + max++; + } + + adj = gtk_range_get_adjustment (GTK_RANGE (wid)); + adj->page_size = (gdouble) visible; + + gtk_range_set_range (GTK_RANGE (wid), (gdouble) min, (gdouble) max); + gtk_range_set_value (GTK_RANGE (wid), (gdouble) value); + + gdk_threads_leave (); +} + +#if GTK_MINOR_VERSION > 4 +static gboolean +slider_moved_cb (GtkRange *range, + GtkScrollType scroll, + gdouble value, + jobject obj) +{ + GtkAdjustment *adj = gtk_range_get_adjustment (GTK_RANGE (range)); + + value = CLAMP (value, adj->lower, + (adj->upper - adj->page_size)); + + if (range->round_digits >= 0) + { + gdouble power; + gint i; + + i = range->round_digits; + power = 1; + while (i--) + power *= 10; + + value = floor ((value * power) + 0.5) / power; + } + + switch (scroll) + { + case GTK_SCROLL_STEP_BACKWARD: + (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj, postAdjustmentEventID, + AWT_ADJUSTMENT_UNIT_DECREMENT, + (jint) value); + break; + case GTK_SCROLL_STEP_FORWARD: + (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj, postAdjustmentEventID, + AWT_ADJUSTMENT_UNIT_INCREMENT, + (jint) value); + break; + case GTK_SCROLL_PAGE_BACKWARD: + (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj, postAdjustmentEventID, + AWT_ADJUSTMENT_BLOCK_DECREMENT, + (jint) value); + break; + case GTK_SCROLL_PAGE_FORWARD: + (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj, postAdjustmentEventID, + AWT_ADJUSTMENT_BLOCK_INCREMENT, + (jint) value); + break; + default: + /* GTK_SCROLL_JUMP: */ + (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj, postAdjustmentEventID, + AWT_ADJUSTMENT_TRACK, + (jint) value); + break; + } + return FALSE; +} +#else +static void +post_change_event_cb (GtkRange *range, jobject peer) +{ + GtkAdjustment *adj; + adj = gtk_range_get_adjustment (range); + (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), peer, postAdjustmentEventID, + AWT_ADJUSTMENT_TRACK, (jint) adj->value); +} +#endif + +static GtkWidget * +scrollbar_get_widget (GtkWidget *widget) +{ + GtkWidget *wid; + g_assert (GTK_IS_EVENT_BOX (widget)); + wid = gtk_bin_get_child (GTK_BIN(widget)); + + return wid; +} -- cgit v1.2.3