538 lines
17 KiB
C
538 lines
17 KiB
C
/* gtktoolkit.c -- Native portion of GtkToolkit
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Copyright (C) 1998, 1999 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., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 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_GtkToolkit.h"
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#include "gthread-jni.h"
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#include <sys/time.h>
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#ifdef JVM_SUN
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struct state_table *native_state_table;
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struct state_table *native_global_ref_table;
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#endif
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jmethodID setBoundsCallbackID;
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jmethodID postActionEventID;
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jmethodID postMenuActionEventID;
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jmethodID postMouseEventID;
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jmethodID postConfigureEventID;
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jmethodID postExposeEventID;
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jmethodID postKeyEventID;
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jmethodID postFocusEventID;
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jmethodID postAdjustmentEventID;
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jmethodID postItemEventID;
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jmethodID choicePostItemEventID;
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jmethodID postListItemEventID;
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jmethodID postTextEventID;
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jmethodID postWindowEventID;
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jmethodID postInsetsChangedEventID;
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jmethodID windowGetWidthID;
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jmethodID windowGetHeightID;
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jmethodID beginNativeRepaintID;
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jmethodID endNativeRepaintID;
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jmethodID initComponentGraphicsID;
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jmethodID initComponentGraphics2DID;
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jmethodID setCursorID;
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JavaVM *java_vm;
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union env_union
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{
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void *void_env;
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JNIEnv *jni_env;
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};
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JNIEnv *
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gdk_env()
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{
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union env_union tmp;
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g_assert((*java_vm)->GetEnv(java_vm, &tmp.void_env, JNI_VERSION_1_2) == JNI_OK);
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return tmp.jni_env;
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}
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GtkWindowGroup *global_gtk_window_group;
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static void init_glib_threads(JNIEnv *, jint);
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double dpi_conversion_factor;
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static void init_dpi_conversion_factor (void);
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static void dpi_changed_cb (GtkSettings *settings,
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GParamSpec *pspec);
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/*
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* Call gtk_init. It is very important that this happen before any other
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* gtk calls.
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*
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* The portableNativeSync argument may have the values:
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* 1 if the Java property gnu.classpath.awt.gtk.portable.native.sync
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* is set to "true".
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* 0 if it is set to "false"
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* -1 if unset.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkToolkit_gtkInit (JNIEnv *env,
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jclass clazz __attribute__((unused)),
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jint portableNativeSync)
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{
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int argc = 1;
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char **argv;
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char *homedir, *rcpath = NULL;
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jclass gtkgenericpeer, gtkcomponentpeer, gtkchoicepeer, gtkwindowpeer, gtkscrollbarpeer, gtklistpeer,
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gtkmenuitempeer, gtktextcomponentpeer, window, gdkgraphics, gdkgraphics2d;
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gtkgenericpeer = (*env)->FindClass(env, "gnu/java/awt/peer/gtk/GtkGenericPeer");
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NSA_INIT (env, gtkgenericpeer);
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g_assert((*env)->GetJavaVM(env, &java_vm) == 0);
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/* GTK requires a program's argc and argv variables, and requires that they
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be valid. Set it up. */
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argv = (char **) g_malloc (sizeof (char *) * 2);
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argv[0] = (char *) g_malloc(1);
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#if 1
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strcpy(argv[0], "");
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#else /* The following is a more efficient alternative, but less intuitively
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* expresses what we are trying to do. This code is only run once, so
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* I'm going for intuitive. */
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argv[0][0] = '\0';
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#endif
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argv[1] = NULL;
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init_glib_threads(env, portableNativeSync);
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/* From GDK 2.0 onwards we have to explicitly call gdk_threads_init */
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gdk_threads_init();
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gtk_init (&argc, &argv);
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gdk_rgb_init ();
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gtk_widget_set_default_colormap (gdk_rgb_get_cmap ());
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gtk_widget_set_default_visual (gdk_rgb_get_visual ());
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/* Make sure queued calls don't get sent to GTK/GDK while
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we're shutting down. */
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atexit (gdk_threads_enter);
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gdk_event_handler_set ((GdkEventFunc)awt_event_handler, NULL, NULL);
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if ((homedir = getenv ("HOME")))
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{
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rcpath = (char *) g_malloc (strlen (homedir) + strlen (RC_FILE) + 2);
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sprintf (rcpath, "%s/%s", homedir, RC_FILE);
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}
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gtk_rc_parse ((rcpath) ? rcpath : RC_FILE);
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g_free (rcpath);
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g_free (argv[0]);
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g_free (argv);
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/* setup cached IDs for posting GTK events to Java */
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window = (*env)->FindClass (env, "java/awt/Window");
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gtkcomponentpeer = (*env)->FindClass (env,
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"gnu/java/awt/peer/gtk/GtkComponentPeer");
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gtkchoicepeer = (*env)->FindClass (env,
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"gnu/java/awt/peer/gtk/GtkChoicePeer");
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gtkwindowpeer = (*env)->FindClass (env,
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"gnu/java/awt/peer/gtk/GtkWindowPeer");
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gtkscrollbarpeer = (*env)->FindClass (env,
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"gnu/java/awt/peer/gtk/GtkScrollbarPeer");
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gtklistpeer = (*env)->FindClass (env, "gnu/java/awt/peer/gtk/GtkListPeer");
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gtkmenuitempeer = (*env)->FindClass (env,
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"gnu/java/awt/peer/gtk/GtkMenuItemPeer");
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gtktextcomponentpeer = (*env)->FindClass (env,
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"gnu/java/awt/peer/gtk/GtkTextComponentPeer");
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gdkgraphics = (*env)->FindClass (env,
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"gnu/java/awt/peer/gtk/GdkGraphics");
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gdkgraphics2d = (*env)->FindClass (env,
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"gnu/java/awt/peer/gtk/GdkGraphics2D");
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setBoundsCallbackID = (*env)->GetMethodID (env, window,
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"setBoundsCallback",
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"(IIII)V");
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postMenuActionEventID = (*env)->GetMethodID (env, gtkmenuitempeer,
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"postMenuActionEvent",
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"()V");
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postMouseEventID = (*env)->GetMethodID (env, gtkcomponentpeer,
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"postMouseEvent", "(IJIIIIZ)V");
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setCursorID = (*env)->GetMethodID (env, gtkcomponentpeer,
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"setCursor", "()V");
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beginNativeRepaintID = (*env)->GetMethodID (env, gtkcomponentpeer,
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"beginNativeRepaint", "()V");
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endNativeRepaintID = (*env)->GetMethodID (env, gtkcomponentpeer,
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"endNativeRepaint", "()V");
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postConfigureEventID = (*env)->GetMethodID (env, gtkwindowpeer,
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"postConfigureEvent", "(IIII)V");
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postWindowEventID = (*env)->GetMethodID (env, gtkwindowpeer,
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"postWindowEvent",
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"(ILjava/awt/Window;I)V");
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postInsetsChangedEventID = (*env)->GetMethodID (env, gtkwindowpeer,
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"postInsetsChangedEvent",
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"(IIII)V");
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windowGetWidthID = (*env)->GetMethodID (env, gtkwindowpeer,
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"getWidth", "()I");
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windowGetHeightID = (*env)->GetMethodID (env, gtkwindowpeer,
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"getHeight", "()I");
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postExposeEventID = (*env)->GetMethodID (env, gtkcomponentpeer,
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"postExposeEvent", "(IIII)V");
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postKeyEventID = (*env)->GetMethodID (env, gtkcomponentpeer,
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"postKeyEvent", "(IJIICI)V");
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postFocusEventID = (*env)->GetMethodID (env, gtkcomponentpeer,
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"postFocusEvent", "(IZ)V");
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postAdjustmentEventID = (*env)->GetMethodID (env, gtkscrollbarpeer,
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"postAdjustmentEvent",
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"(II)V");
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postItemEventID = (*env)->GetMethodID (env, gtkcomponentpeer,
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"postItemEvent",
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"(Ljava/lang/Object;I)V");
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choicePostItemEventID = (*env)->GetMethodID (env, gtkchoicepeer,
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"choicePostItemEvent",
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"(Ljava/lang/String;I)V");
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postListItemEventID = (*env)->GetMethodID (env, gtklistpeer,
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"postItemEvent",
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"(II)V");
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postTextEventID = (*env)->GetMethodID (env, gtktextcomponentpeer,
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"postTextEvent",
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"()V");
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initComponentGraphicsID = (*env)->GetMethodID (env, gdkgraphics,
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"initComponentGraphics",
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"()V");
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initComponentGraphics2DID = (*env)->GetMethodID (env, gdkgraphics2d,
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"initComponentGraphics2D",
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"()V");
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global_gtk_window_group = gtk_window_group_new ();
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init_dpi_conversion_factor ();
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}
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/** Initialize GLIB's threads properly, based on the value of the
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gnu.classpath.awt.gtk.portable.native.sync Java system property. If
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that's unset, use the PORTABLE_NATIVE_SYNC config.h macro. (TODO:
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In some release following 0.10, that config.h macro will go away.)
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*/
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static void
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init_glib_threads(JNIEnv *env, jint portableNativeSync)
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{
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if (portableNativeSync < 0)
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{
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#ifdef PORTABLE_NATIVE_SYNC /* Default value, if not set by the Java system
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property */
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portableNativeSync = 1;
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#else
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portableNativeSync = 0;
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#endif
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}
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(*env)->GetJavaVM( env, &the_vm );
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if (!g_thread_supported ())
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{
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if (portableNativeSync)
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g_thread_init ( &portable_native_sync_jni_functions );
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else
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g_thread_init ( NULL );
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}
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else
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{
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/* Warn if portable native sync is desired but the threading
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system is already initialized. In that case we can't
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override the threading implementation with our portable
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native sync functions. */
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if (portableNativeSync)
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g_printerr ("peer warning: portable native sync disabled.\n");
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}
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/* Debugging progress message; uncomment if needed: */
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/* printf("called gthread init\n"); */
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}
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/* This is a big hack, needed until this pango bug is resolved:
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http://bugzilla.gnome.org/show_bug.cgi?id=119081.
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See: http://mail.gnome.org/archives/gtk-i18n-list/2003-August/msg00001.html
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for details. */
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static void
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init_dpi_conversion_factor ()
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{
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GtkSettings *settings = gtk_settings_get_default ();
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GObjectClass *klass;
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klass = G_OBJECT_CLASS (GTK_SETTINGS_GET_CLASS (settings));
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if (g_object_class_find_property (klass, "gtk-xft-dpi"))
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{
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int int_dpi;
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g_object_get (settings, "gtk-xft-dpi", &int_dpi, NULL);
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/* If int_dpi == -1 gtk-xft-dpi returns the default value. So we
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have to do approximate calculation here. */
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if (int_dpi < 0)
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dpi_conversion_factor = PANGO_SCALE * 72.0 / 96.;
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else
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dpi_conversion_factor = PANGO_SCALE * 72.0 / (int_dpi / PANGO_SCALE);
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g_signal_connect (settings, "notify::gtk-xft-dpi",
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G_CALLBACK (dpi_changed_cb), NULL);
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}
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else
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/* Approximate. */
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dpi_conversion_factor = PANGO_SCALE * 72.0 / 96.;
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}
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static void
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dpi_changed_cb (GtkSettings *settings,
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GParamSpec *pspec __attribute__((unused)))
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{
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int int_dpi;
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g_object_get (settings, "gtk-xft-dpi", &int_dpi, NULL);
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if (int_dpi < 0)
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dpi_conversion_factor = PANGO_SCALE * 72.0 / 96.;
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else
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dpi_conversion_factor = PANGO_SCALE * 72.0 / (int_dpi / PANGO_SCALE);
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}
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static int
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within_human_latency_tolerance(struct timeval *init)
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{
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struct timeval curr;
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unsigned long milliseconds_elapsed;
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gettimeofday(&curr, NULL);
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milliseconds_elapsed = (((curr.tv_sec * 1000) + (curr.tv_usec / 1000))
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- ((init->tv_sec * 1000) + (init->tv_usec / 1000)));
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return milliseconds_elapsed < 100;
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkToolkit_iterateNativeQueue
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(JNIEnv *env,
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jobject self __attribute__((unused)),
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jobject lockedQueue,
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jboolean block)
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{
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/* We're holding an EventQueue lock, and we're about to acquire the GDK
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* lock before dropping the EventQueue lock. This can deadlock if someone
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* holds the GDK lock and wants to acquire the EventQueue lock; however
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* all callbacks from GTK happen with the GDK lock released, so this
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* would only happen in an odd case such as some JNI helper code
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* acquiring the GDK lock and calling back into
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* EventQueue.getNextEvent().
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*/
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struct timeval init;
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gettimeofday(&init, NULL);
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gdk_threads_enter ();
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(*env)->MonitorExit (env, lockedQueue);
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if (block)
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{
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/* If we're blocking-when-empty, we want a do .. while loop. */
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do
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gtk_main_iteration ();
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while (within_human_latency_tolerance (&init)
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&& gtk_events_pending ());
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}
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else
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{
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/* If we're not blocking-when-empty, we want a while loop. */
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while (within_human_latency_tolerance (&init)
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&& gtk_events_pending ())
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gtk_main_iteration ();
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}
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(*env)->MonitorEnter (env, lockedQueue);
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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_GtkToolkit_wakeNativeQueue
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(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)))
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{
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g_main_context_wakeup (NULL);
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}
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JNIEXPORT jboolean JNICALL
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Java_gnu_java_awt_peer_gtk_GtkToolkit_nativeQueueEmpty
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(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)))
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{
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jboolean empty = FALSE;
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gdk_threads_enter ();
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empty = ! gtk_events_pending();
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gdk_threads_leave ();
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return empty;
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}
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static jint gdk_color_to_java_color (GdkColor color);
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkToolkit_beep
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(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)))
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{
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gdk_threads_enter ();
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gdk_beep ();
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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_GtkToolkit_sync
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(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)))
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{
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gdk_threads_enter ();
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gdk_flush ();
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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_GtkToolkit_getScreenSizeDimensions
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(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)),
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jintArray jdims)
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{
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jint *dims = (*env)->GetIntArrayElements (env, jdims, 0);
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gdk_threads_enter ();
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dims[0] = gdk_screen_width ();
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dims[1] = gdk_screen_height ();
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gdk_threads_leave ();
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(*env)->ReleaseIntArrayElements(env, jdims, dims, 0);
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}
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JNIEXPORT jint JNICALL
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Java_gnu_java_awt_peer_gtk_GtkToolkit_getScreenResolution
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(JNIEnv *env __attribute__((unused)), jobject obj __attribute__((unused)))
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{
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jint res;
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gdk_threads_enter ();
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res = gdk_screen_width () / (gdk_screen_width_mm () / 25.4);
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gdk_threads_leave ();
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return res;
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}
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#define CONVERT(type, state) \
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gdk_color_to_java_color (style->type[GTK_STATE_ ## state])
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkToolkit_loadSystemColors
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(JNIEnv *env, jobject obj __attribute__((unused)),
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jintArray jcolors)
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{
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jint *colors;
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GtkStyle *style;
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colors = (*env)->GetIntArrayElements (env, jcolors, 0);
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gdk_threads_enter ();
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style = gtk_widget_get_default_style ();
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colors[AWT_DESKTOP] = CONVERT (bg, SELECTED);
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colors[AWT_ACTIVE_CAPTION] = CONVERT (bg, SELECTED);
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colors[AWT_ACTIVE_CAPTION_TEXT] = CONVERT (text, SELECTED);
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colors[AWT_ACTIVE_CAPTION_BORDER] = CONVERT (fg, NORMAL);
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colors[AWT_INACTIVE_CAPTION] = CONVERT (base, INSENSITIVE);
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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);
|
|
}
|