| /* gtktoolkit.c -- Native portion of GtkToolkit |
| 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_GtkToolkit.h" |
| #include "gthread-jni.h" |
| |
| #include <sys/time.h> |
| |
| #ifdef JVM_SUN |
| struct state_table *native_state_table; |
| struct state_table *native_global_ref_table; |
| #endif |
| |
| jmethodID setBoundsCallbackID; |
| |
| jmethodID postActionEventID; |
| jmethodID postMenuActionEventID; |
| jmethodID postMouseEventID; |
| jmethodID postConfigureEventID; |
| jmethodID postExposeEventID; |
| jmethodID postKeyEventID; |
| jmethodID postFocusEventID; |
| jmethodID postAdjustmentEventID; |
| jmethodID postItemEventID; |
| jmethodID choicePostItemEventID; |
| jmethodID postListItemEventID; |
| jmethodID postTextEventID; |
| jmethodID postWindowEventID; |
| jmethodID postInsetsChangedEventID; |
| jmethodID windowGetWidthID; |
| jmethodID windowGetHeightID; |
| |
| jmethodID beginNativeRepaintID; |
| jmethodID endNativeRepaintID; |
| |
| jmethodID initComponentGraphicsID; |
| jmethodID initComponentGraphics2DID; |
| jmethodID setCursorID; |
| |
| JavaVM *java_vm; |
| |
| union env_union |
| { |
| void *void_env; |
| JNIEnv *jni_env; |
| }; |
| |
| JNIEnv * |
| gdk_env() |
| { |
| union env_union tmp; |
| g_assert((*java_vm)->GetEnv(java_vm, &tmp.void_env, JNI_VERSION_1_2) == JNI_OK); |
| return tmp.jni_env; |
| } |
| |
| |
| GtkWindowGroup *global_gtk_window_group; |
| |
| static void init_glib_threads(JNIEnv *, jint); |
| |
| double dpi_conversion_factor; |
| |
| static void init_dpi_conversion_factor (void); |
| static void dpi_changed_cb (GtkSettings *settings, |
| GParamSpec *pspec); |
| |
| /* |
| * Call gtk_init. It is very important that this happen before any other |
| * gtk calls. |
| * |
| * The portableNativeSync argument may have the values: |
| * 1 if the Java property gnu.classpath.awt.gtk.portable.native.sync |
| * is set to "true". |
| * 0 if it is set to "false" |
| * -1 if unset. |
| */ |
| |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_gtkInit (JNIEnv *env, |
| jclass clazz __attribute__((unused)), |
| jint portableNativeSync) |
| { |
| int argc = 1; |
| char **argv; |
| char *homedir, *rcpath = NULL; |
| |
| jclass gtkgenericpeer, gtkcomponentpeer, gtkchoicepeer, gtkwindowpeer, gtkscrollbarpeer, gtklistpeer, |
| gtkmenuitempeer, gtktextcomponentpeer, window, gdkgraphics, gdkgraphics2d; |
| |
| gtkgenericpeer = (*env)->FindClass(env, "gnu/java/awt/peer/gtk/GtkGenericPeer"); |
| |
| NSA_INIT (env, gtkgenericpeer); |
| |
| g_assert((*env)->GetJavaVM(env, &java_vm) == 0); |
| |
| /* GTK requires a program's argc and argv variables, and requires that they |
| be valid. Set it up. */ |
| argv = (char **) g_malloc (sizeof (char *) * 2); |
| argv[0] = (char *) g_malloc(1); |
| #if 1 |
| strcpy(argv[0], ""); |
| #else /* The following is a more efficient alternative, but less intuitively |
| * expresses what we are trying to do. This code is only run once, so |
| * I'm going for intuitive. */ |
| argv[0][0] = '\0'; |
| #endif |
| argv[1] = NULL; |
| |
| init_glib_threads(env, portableNativeSync); |
| |
| /* From GDK 2.0 onwards we have to explicitly call gdk_threads_init */ |
| gdk_threads_init(); |
| |
| gtk_init (&argc, &argv); |
| |
| gdk_rgb_init (); |
| gtk_widget_set_default_colormap (gdk_rgb_get_cmap ()); |
| gtk_widget_set_default_visual (gdk_rgb_get_visual ()); |
| |
| /* Make sure queued calls don't get sent to GTK/GDK while |
| we're shutting down. */ |
| atexit (gdk_threads_enter); |
| |
| gdk_event_handler_set ((GdkEventFunc)awt_event_handler, NULL, NULL); |
| |
| if ((homedir = getenv ("HOME"))) |
| { |
| rcpath = (char *) g_malloc (strlen (homedir) + strlen (RC_FILE) + 2); |
| sprintf (rcpath, "%s/%s", homedir, RC_FILE); |
| } |
| |
| gtk_rc_parse ((rcpath) ? rcpath : RC_FILE); |
| |
| g_free (rcpath); |
| g_free (argv[0]); |
| g_free (argv); |
| |
| /* setup cached IDs for posting GTK events to Java */ |
| |
| window = (*env)->FindClass (env, "java/awt/Window"); |
| |
| gtkcomponentpeer = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GtkComponentPeer"); |
| gtkchoicepeer = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GtkChoicePeer"); |
| gtkwindowpeer = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GtkWindowPeer"); |
| gtkscrollbarpeer = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GtkScrollbarPeer"); |
| gtklistpeer = (*env)->FindClass (env, "gnu/java/awt/peer/gtk/GtkListPeer"); |
| gtkmenuitempeer = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GtkMenuItemPeer"); |
| gtktextcomponentpeer = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GtkTextComponentPeer"); |
| gdkgraphics = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GdkGraphics"); |
| gdkgraphics2d = (*env)->FindClass (env, |
| "gnu/java/awt/peer/gtk/GdkGraphics2D"); |
| setBoundsCallbackID = (*env)->GetMethodID (env, window, |
| "setBoundsCallback", |
| "(IIII)V"); |
| |
| postMenuActionEventID = (*env)->GetMethodID (env, gtkmenuitempeer, |
| "postMenuActionEvent", |
| "()V"); |
| postMouseEventID = (*env)->GetMethodID (env, gtkcomponentpeer, |
| "postMouseEvent", "(IJIIIIZ)V"); |
| setCursorID = (*env)->GetMethodID (env, gtkcomponentpeer, |
| "setCursor", "()V"); |
| beginNativeRepaintID = (*env)->GetMethodID (env, gtkcomponentpeer, |
| "beginNativeRepaint", "()V"); |
| |
| endNativeRepaintID = (*env)->GetMethodID (env, gtkcomponentpeer, |
| "endNativeRepaint", "()V"); |
| |
| postConfigureEventID = (*env)->GetMethodID (env, gtkwindowpeer, |
| "postConfigureEvent", "(IIII)V"); |
| postWindowEventID = (*env)->GetMethodID (env, gtkwindowpeer, |
| "postWindowEvent", |
| "(ILjava/awt/Window;I)V"); |
| postInsetsChangedEventID = (*env)->GetMethodID (env, gtkwindowpeer, |
| "postInsetsChangedEvent", |
| "(IIII)V"); |
| windowGetWidthID = (*env)->GetMethodID (env, gtkwindowpeer, |
| "getWidth", "()I"); |
| windowGetHeightID = (*env)->GetMethodID (env, gtkwindowpeer, |
| "getHeight", "()I"); |
| |
| postExposeEventID = (*env)->GetMethodID (env, gtkcomponentpeer, |
| "postExposeEvent", "(IIII)V"); |
| postKeyEventID = (*env)->GetMethodID (env, gtkcomponentpeer, |
| "postKeyEvent", "(IJIICI)V"); |
| postFocusEventID = (*env)->GetMethodID (env, gtkcomponentpeer, |
| "postFocusEvent", "(IZ)V"); |
| postAdjustmentEventID = (*env)->GetMethodID (env, gtkscrollbarpeer, |
| "postAdjustmentEvent", |
| "(II)V"); |
| postItemEventID = (*env)->GetMethodID (env, gtkcomponentpeer, |
| "postItemEvent", |
| "(Ljava/lang/Object;I)V"); |
| choicePostItemEventID = (*env)->GetMethodID (env, gtkchoicepeer, |
| "choicePostItemEvent", |
| "(Ljava/lang/String;I)V"); |
| postListItemEventID = (*env)->GetMethodID (env, gtklistpeer, |
| "postItemEvent", |
| "(II)V"); |
| postTextEventID = (*env)->GetMethodID (env, gtktextcomponentpeer, |
| "postTextEvent", |
| "()V"); |
| initComponentGraphicsID = (*env)->GetMethodID (env, gdkgraphics, |
| "initComponentGraphics", |
| "()V"); |
| initComponentGraphics2DID = (*env)->GetMethodID (env, gdkgraphics2d, |
| "initComponentGraphics2D", |
| "()V"); |
| global_gtk_window_group = gtk_window_group_new (); |
| |
| init_dpi_conversion_factor (); |
| } |
| |
| |
| /** Initialize GLIB's threads properly, based on the value of the |
| gnu.classpath.awt.gtk.portable.native.sync Java system property. If |
| that's unset, use the PORTABLE_NATIVE_SYNC config.h macro. (TODO: |
| In some release following 0.10, that config.h macro will go away.) |
| */ |
| static void |
| init_glib_threads(JNIEnv *env, jint portableNativeSync) |
| { |
| if (portableNativeSync < 0) |
| { |
| #ifdef PORTABLE_NATIVE_SYNC /* Default value, if not set by the Java system |
| property */ |
| portableNativeSync = 1; |
| #else |
| portableNativeSync = 0; |
| #endif |
| } |
| |
| (*env)->GetJavaVM( env, &the_vm ); |
| if (!g_thread_supported ()) |
| { |
| if (portableNativeSync) |
| g_thread_init ( &portable_native_sync_jni_functions ); |
| else |
| g_thread_init ( NULL ); |
| } |
| else |
| { |
| /* Warn if portable native sync is desired but the threading |
| system is already initialized. In that case we can't |
| override the threading implementation with our portable |
| native sync functions. */ |
| if (portableNativeSync) |
| g_printerr ("peer warning: portable native sync disabled.\n"); |
| } |
| |
| /* Debugging progress message; uncomment if needed: */ |
| /* printf("called gthread init\n"); */ |
| } |
| |
| |
| /* This is a big hack, needed until this pango bug is resolved: |
| http://bugzilla.gnome.org/show_bug.cgi?id=119081. |
| See: http://mail.gnome.org/archives/gtk-i18n-list/2003-August/msg00001.html |
| for details. */ |
| static void |
| init_dpi_conversion_factor () |
| { |
| GtkSettings *settings = gtk_settings_get_default (); |
| GObjectClass *klass; |
| |
| klass = G_OBJECT_CLASS (GTK_SETTINGS_GET_CLASS (settings)); |
| if (g_object_class_find_property (klass, "gtk-xft-dpi")) |
| { |
| int int_dpi; |
| g_object_get (settings, "gtk-xft-dpi", &int_dpi, NULL); |
| /* If int_dpi == -1 gtk-xft-dpi returns the default value. So we |
| have to do approximate calculation here. */ |
| if (int_dpi < 0) |
| dpi_conversion_factor = PANGO_SCALE * 72.0 / 96.; |
| else |
| dpi_conversion_factor = PANGO_SCALE * 72.0 / (int_dpi / PANGO_SCALE); |
| |
| g_signal_connect (settings, "notify::gtk-xft-dpi", |
| G_CALLBACK (dpi_changed_cb), NULL); |
| } |
| else |
| /* Approximate. */ |
| dpi_conversion_factor = PANGO_SCALE * 72.0 / 96.; |
| } |
| |
| static void |
| dpi_changed_cb (GtkSettings *settings, |
| GParamSpec *pspec __attribute__((unused))) |
| { |
| int int_dpi; |
| g_object_get (settings, "gtk-xft-dpi", &int_dpi, NULL); |
| if (int_dpi < 0) |
| dpi_conversion_factor = PANGO_SCALE * 72.0 / 96.; |
| else |
| dpi_conversion_factor = PANGO_SCALE * 72.0 / (int_dpi / PANGO_SCALE); |
| } |
| |
| static int |
| within_human_latency_tolerance(struct timeval *init) |
| { |
| struct timeval curr; |
| unsigned long milliseconds_elapsed; |
| |
| gettimeofday(&curr, NULL); |
| |
| milliseconds_elapsed = (((curr.tv_sec * 1000) + (curr.tv_usec / 1000)) |
| - ((init->tv_sec * 1000) + (init->tv_usec / 1000))); |
| |
| return milliseconds_elapsed < 100; |
| } |
| |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_iterateNativeQueue |
| (JNIEnv *env, |
| jobject self __attribute__((unused)), |
| jobject lockedQueue, |
| jboolean block) |
| { |
| /* We're holding an EventQueue lock, and we're about to acquire the GDK |
| * lock before dropping the EventQueue lock. This can deadlock if someone |
| * holds the GDK lock and wants to acquire the EventQueue lock; however |
| * all callbacks from GTK happen with the GDK lock released, so this |
| * would only happen in an odd case such as some JNI helper code |
| * acquiring the GDK lock and calling back into |
| * EventQueue.getNextEvent(). |
| */ |
| |
| struct timeval init; |
| gettimeofday(&init, NULL); |
| |
| gdk_threads_enter (); |
| (*env)->MonitorExit (env, lockedQueue); |
| |
| if (block) |
| { |
| |
| /* If we're blocking-when-empty, we want a do .. while loop. */ |
| do |
| gtk_main_iteration (); |
| while (within_human_latency_tolerance (&init) |
| && gtk_events_pending ()); |
| } |
| else |
| { |
| /* If we're not blocking-when-empty, we want a while loop. */ |
| while (within_human_latency_tolerance (&init) |
| && gtk_events_pending ()) |
| gtk_main_iteration (); |
| } |
| |
| (*env)->MonitorEnter (env, lockedQueue); |
| gdk_threads_leave (); |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_wakeNativeQueue |
| (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused))) |
| { |
| g_main_context_wakeup (NULL); |
| } |
| |
| JNIEXPORT jboolean JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_nativeQueueEmpty |
| (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused))) |
| { |
| jboolean empty = FALSE; |
| gdk_threads_enter (); |
| empty = ! gtk_events_pending(); |
| gdk_threads_leave (); |
| return empty; |
| } |
| |
| |
| static jint gdk_color_to_java_color (GdkColor color); |
| |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_beep |
| (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused))) |
| { |
| gdk_threads_enter (); |
| gdk_beep (); |
| gdk_threads_leave (); |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_sync |
| (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused))) |
| { |
| gdk_threads_enter (); |
| gdk_flush (); |
| gdk_threads_leave (); |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_getScreenSizeDimensions |
| (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)), |
| jintArray jdims) |
| { |
| jint *dims = (*env)->GetIntArrayElements (env, jdims, 0); |
| |
| gdk_threads_enter (); |
| |
| dims[0] = gdk_screen_width (); |
| dims[1] = gdk_screen_height (); |
| |
| gdk_threads_leave (); |
| |
| (*env)->ReleaseIntArrayElements(env, jdims, dims, 0); |
| } |
| |
| JNIEXPORT jint JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_getScreenResolution |
| (JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused))) |
| { |
| jint res; |
| |
| gdk_threads_enter (); |
| |
| res = gdk_screen_width () / (gdk_screen_width_mm () / 25.4); |
| |
| gdk_threads_leave (); |
| return res; |
| } |
| |
| #define CONVERT(type, state) \ |
| gdk_color_to_java_color (style->type[GTK_STATE_ ## state]) |
| |
| JNIEXPORT void JNICALL |
| Java_gnu_java_awt_peer_gtk_GtkToolkit_loadSystemColors |
| (JNIEnv *env, jobject obj __attribute__((unused)), |
| jintArray jcolors) |
| { |
| jint *colors; |
| GtkStyle *style; |
| |
| colors = (*env)->GetIntArrayElements (env, jcolors, 0); |
| |
| gdk_threads_enter (); |
| |
| style = gtk_widget_get_default_style (); |
| |
| colors[AWT_DESKTOP] = CONVERT (bg, SELECTED); |
| colors[AWT_ACTIVE_CAPTION] = CONVERT (bg, SELECTED); |
| colors[AWT_ACTIVE_CAPTION_TEXT] = CONVERT (text, SELECTED); |
| colors[AWT_ACTIVE_CAPTION_BORDER] = CONVERT (fg, NORMAL); |
| colors[AWT_INACTIVE_CAPTION] = CONVERT (base, INSENSITIVE); |
| colors[AWT_INACTIVE_CAPTION_TEXT] = CONVERT (fg, INSENSITIVE); |
| colors[AWT_INACTIVE_CAPTION_BORDER] = CONVERT (fg, INSENSITIVE); |
| colors[AWT_WINDOW] = CONVERT (bg, NORMAL); |
| colors[AWT_WINDOW_BORDER] = CONVERT (fg, NORMAL); |
| colors[AWT_WINDOW_TEXT] = CONVERT (fg, NORMAL); |
| colors[AWT_MENU] = CONVERT (bg, NORMAL); |
| colors[AWT_MENU_TEXT] = CONVERT (fg, NORMAL); |
| colors[AWT_TEXT] = CONVERT (bg, NORMAL); |
| colors[AWT_TEXT_TEXT] = CONVERT (fg, NORMAL); |
| colors[AWT_TEXT_HIGHLIGHT] = CONVERT (bg, SELECTED); |
| colors[AWT_TEXT_HIGHLIGHT_TEXT] = CONVERT (fg, SELECTED); |
| colors[AWT_TEXT_INACTIVE_TEXT] = CONVERT (bg, INSENSITIVE); |
| colors[AWT_CONTROL] = CONVERT (bg, NORMAL); |
| colors[AWT_CONTROL_TEXT] = CONVERT (fg, NORMAL); |
| colors[AWT_CONTROL_HIGHLIGHT] = CONVERT (base, ACTIVE); |
| colors[AWT_CONTROL_LT_HIGHLIGHT] = CONVERT (bg, PRELIGHT); |
| colors[AWT_CONTROL_SHADOW] = CONVERT (bg, ACTIVE); |
| colors[AWT_CONTROL_DK_SHADOW] = CONVERT (fg, INSENSITIVE); |
| colors[AWT_SCROLLBAR] = CONVERT (base, INSENSITIVE); |
| colors[AWT_INFO] = CONVERT (bg, NORMAL); |
| colors[AWT_INFO_TEXT] = CONVERT (fg, NORMAL); |
| |
| gdk_threads_leave (); |
| |
| (*env)->ReleaseIntArrayElements(env, jcolors, colors, 0); |
| } |
| |
| #undef CONVERT |
| |
| static jint |
| gdk_color_to_java_color (GdkColor gdk_color) |
| { |
| guchar red; |
| guchar green; |
| guchar blue; |
| float factor; |
| |
| factor = 255.0 / 65535.0; |
| |
| red = (float) gdk_color.red * factor; |
| green = (float) gdk_color.green * factor; |
| blue = (float) gdk_color.blue * factor; |
| |
| return (jint) (0xff000000 | (red << 16) | (green << 8) | blue); |
| } |