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jeremybenn |
/* gnu_java_awt_peer_gtk_GdkGraphicsEnvironment.c
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Copyright (C) 2004, 2006 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 <glib.h>
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#include <gdk/gdk.h>
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#include "gdkfont.h"
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#include "gdkdisplay.h"
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#include "gnu_java_awt_peer_gtk_GdkGraphicsEnvironment.h"
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jclass gdkGraphicsEnvironment_class;
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GdkGraphicsEnvironment_initIDs
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(JNIEnv *env, jclass klazz __attribute__((unused)))
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{
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gtkpeer_init_display_IDs(env);
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GdkGraphicsEnvironment_nativeInitState
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(JNIEnv *env, jobject obj)
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{
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GdkDisplay *defaultDisplay;
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gdk_threads_enter();
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/* Retrieve the default display. */
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defaultDisplay = gdk_display_get_default();
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gdk_threads_leave();
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/* Store display pointer in GdkGraphicsEnvironment instance. */
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gtkpeer_set_display(env, obj, (void *) defaultDisplay);
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}
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static gint
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cmp_families (const void *a, const void *b)
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{
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const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
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const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
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return g_utf8_collate (a_name, b_name);
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GdkGraphicsEnvironment_nativeGetFontFamilies
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(JNIEnv *env, jobject self __attribute__((unused)), jobjectArray family_name)
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{
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PangoContext *context = NULL;
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PangoFontFamily **families = NULL;
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int n_families = 0;
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int idx = 0;
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gdk_threads_enter ();
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context = gdk_pango_context_get();
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g_assert (context != NULL);
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pango_context_list_families (context, &families, &n_families);
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qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
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for (idx = 0; idx < n_families; idx++)
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{
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const char *name_tmp = pango_font_family_get_name (families[idx]);
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jstring name = (*env)->NewStringUTF (env, name_tmp);
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(*env)->SetObjectArrayElement (env, family_name, idx, name);
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(*env)->DeleteLocalRef(env, name);
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}
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g_free (families);
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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_GdkGraphicsEnvironment_nativeGetNumFontFamilies
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(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)))
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{
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PangoContext *context = NULL;
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PangoFontFamily **families = NULL;
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gint n_families = 0;
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gint num = 0;
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gdk_threads_enter ();
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context = gdk_pango_context_get();
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g_assert (context != NULL);
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pango_context_list_families (context, &families, &n_families);
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num = n_families;
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g_free (families);
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gdk_threads_leave ();
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return num;
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}
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JNIEXPORT jobjectArray JNICALL
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Java_gnu_java_awt_peer_gtk_GdkGraphicsEnvironment_nativeGetScreenDevices
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(JNIEnv *env, jobject obj)
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{
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jmethodID gdkScreenGraphicsDevice_ctor, gdkScreenGraphicsDevice_init;
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jclass gdkScreenGraphicsDevice_class;
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int numScreens = 0, i = 0;
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GdkDisplay *display;
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jobjectArray array;
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jobject instance;
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gdkScreenGraphicsDevice_class = (*env)->FindClass
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(env, "gnu/java/awt/peer/gtk/GdkScreenGraphicsDevice");
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gdkScreenGraphicsDevice_ctor = (*env)->GetMethodID
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(env, gdkScreenGraphicsDevice_class, "<init>",
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"(Lgnu/java/awt/peer/gtk/GdkGraphicsEnvironment;)V");
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gdkScreenGraphicsDevice_init = (*env)->GetMethodID
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(env, gdkScreenGraphicsDevice_class, "init", "()V");
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display = (GdkDisplay *) gtkpeer_get_display(env, obj);
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gdk_threads_enter();
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numScreens = gdk_display_get_n_screens(display);
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/* Create a suitably sized array. */
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array = (*env)->NewObjectArray(env,
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numScreens,
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gdkScreenGraphicsDevice_class,
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NULL);
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/* Create GdkScreenGraphicsDevice instances, store the native pointer to
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* the GScreen object with them, run a 2nd initialization phase and
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* put the new instance into the result array.
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*/
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for ( ; i < numScreens ; i++)
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{
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instance = (*env)->NewObject (env,
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gdkScreenGraphicsDevice_class,
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gdkScreenGraphicsDevice_ctor,
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obj);
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gtkpeer_set_screen(env, instance, gdk_display_get_screen(display, i));
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gdk_threads_leave();
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(*env)->CallVoidMethod(env,
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instance,
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gdkScreenGraphicsDevice_init);
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gdk_threads_enter();
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(*env)->SetObjectArrayElement(env, array, i, instance);
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}
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gdk_threads_leave();
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return array;
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}
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JNIEXPORT jobject JNICALL
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Java_gnu_java_awt_peer_gtk_GdkGraphicsEnvironment_nativeGetDefaultScreenDevice
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(JNIEnv *env, jobject obj)
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{
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jclass gdkScreenGraphicsDevice_class;
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jmethodID gdkScreenGraphicsDevice_ctor, gdkScreenGraphicsDevice_init;
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jobject defaultDevice;
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GdkScreen *defaultScreen;
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gdkScreenGraphicsDevice_class = (*env)->FindClass
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(env, "gnu/java/awt/peer/gtk/GdkScreenGraphicsDevice");
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gdkScreenGraphicsDevice_ctor = (*env)->GetMethodID
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(env, gdkScreenGraphicsDevice_class, "<init>",
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"(Lgnu/java/awt/peer/gtk/GdkGraphicsEnvironment;)V");
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gdkScreenGraphicsDevice_init = (*env)->GetMethodID
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(env, gdkScreenGraphicsDevice_class, "init", "()V");
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/* Create the GdkScreenGraphicsDevice instance. */
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defaultDevice = (*env)->NewObject(env, gdkScreenGraphicsDevice_class,
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gdkScreenGraphicsDevice_ctor, obj);
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gdk_threads_enter();
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defaultScreen = gdk_screen_get_default();
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gdk_threads_leave();
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/* Class initialization will have set up the native_state storage
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* mechanism for GdkScreenGraphicsDevice.
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*/
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gtkpeer_set_screen(env, defaultDevice, defaultScreen);
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(*env)->CallVoidMethod(env,
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defaultDevice,
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gdkScreenGraphicsDevice_init);
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return defaultDevice;
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}
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JNIEXPORT jintArray JNICALL
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Java_gnu_java_awt_peer_gtk_GdkGraphicsEnvironment_getMouseCoordinates
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(JNIEnv *env, jobject obj)
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{
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jintArray retArray;
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jint *values;
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GdkDisplay *display;
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gint x, y, screenIndex;
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GdkScreen *screen;
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display = (GdkDisplay *) gtkpeer_get_display(env, obj);
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g_assert (display != NULL);
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gdk_threads_enter ();
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gdk_display_get_pointer (display, &screen, &x, &y, NULL);
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screenIndex = gdk_screen_get_number( screen );
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gdk_threads_leave ();
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retArray = (*env)->NewIntArray (env, 3);
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values = (*env)->GetIntArrayElements (env, retArray, NULL);
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values[0] = screenIndex;
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values[1] = x;
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values[2] = y;
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(*env)->ReleaseIntArrayElements (env, retArray, values, 0);
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return retArray;
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}
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JNIEXPORT jboolean JNICALL
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Java_gnu_java_awt_peer_gtk_GdkGraphicsEnvironment_isWindowUnderMouse
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(JNIEnv *env, jobject obj, jobject windowPeer)
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{
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GdkDisplay *display = NULL;
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gint x = 0;
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gint y = 0;
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GtkWidget *windowToTest = NULL;
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GdkWindow *windowAtPointer = NULL;
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jboolean retVal = JNI_FALSE;
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display = (GdkDisplay *) gtkpeer_get_display (env, obj);
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g_assert (display != NULL);
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windowToTest = (GtkWidget *) gtkpeer_get_widget (env, windowPeer);
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gdk_threads_enter ();
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windowAtPointer = gdk_display_get_window_at_pointer (display, &x, &y);
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while (windowAtPointer
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&& windowAtPointer != windowToTest->window)
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windowAtPointer = gdk_window_get_parent (windowAtPointer);
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gdk_threads_leave ();
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if (windowAtPointer)
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retVal = JNI_TRUE;
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else
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retVal = JNI_FALSE;
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return retVal;
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}
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