old-autovect-branch/libjava/classpath/native/jni/qt-peer/qttoolkit.cpp

   1 /* qttoolkit.cpp --
   2    Copyright (C)  2005  Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38 #include <QApplication>
  39 #include <QDesktopWidget>
  40 #include <QString>
  41 #include <QStringList>
  42 #include <QFontDatabase>
  43 #include <gnu_java_awt_peer_qt_QtToolkit.h>
  44 #include "qtcomponent.h"
  45 #include "mainthreadinterface.h"
  46 #include "qtstrings.h"
  47
  48 extern QApplication *qApplication;
  49
  50 /**
  51  * Calls syncX();
  52  */
  53 class AWTSyncEvent : public AWTEvent {
  54
  55  private:
  56   QApplication *application;
  57
  58  public:
  59   AWTSyncEvent(QApplication *app) : AWTEvent()
  60   {
  61     application = app;
  62   }
  63
  64   void runEvent()
  65   {
  66     application->syncX();
  67   }
  68 };
  69
  70 /*
  71  * Causes your machine to beep. Wow.
  72  */
  73 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtToolkit_beep
  74 (JNIEnv *env, jobject obj)
  75 {
  76   qApplication->beep();
  77 }
  78
  79 /**
  80  * Returns the # of the default screen.
  81  */
  82 JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtToolkit_defaultScreen
  83 (JNIEnv *env, jobject obj)
  84 {
  85   return (jint) qApplication->desktop()->primaryScreen();
  86 }
  87
  88 /**
  89  * Returns the # of screens.
  90  */
  91 JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtToolkit_numScreens
  92 (JNIEnv *env, jobject obj)
  93 {
  94   return (jint) qApplication->desktop()->numScreens();
  95 }
  96
  97 /*
  98  * Returns the screen size.
  99  */
 100 JNIEXPORT jobject JNICALL Java_gnu_java_awt_peer_qt_QtToolkit_getScreenSize
 101 (JNIEnv *env, jobject obj)
 102 {
 103   QDesktopWidget *d = QApplication::desktop();
 104   QSize s = d->size();
 105   return makeDimension( env, &s );
 106 }
 107
 108 /*
 109  * Returns the available fonts
 110  */
 111 JNIEXPORT jobjectArray JNICALL Java_gnu_java_awt_peer_qt_QtToolkit_nativeFontFamilies
 112 (JNIEnv *env, jobject obj)
 113 {
 114   jobjectArray result_array;
 115   jobject *result_array_ptr;
 116   QFontDatabase db;
 117   QStringList fonts = db.families();
 118
 119   result_array = env->NewObjectArray(fonts.size(),
 120                                      env->FindClass("java/lang/String"),
 121                                      env->NewStringUTF(""));
 122   for (int i = 0; i < fonts.size(); i++)
 123     {
 124       QString qstr = fonts.at(i);
 125       jstring jstr = getJavaString(env, &qstr);
 126       env->SetObjectArrayElement( result_array, i, jstr );
 127     }
 128   return result_array;
 129 }
 130
 131
 132 /*
 133  * Returns the screen resolution
 134  */
 135 JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtToolkit_getScreenResolution
 136 (JNIEnv *env, jobject obj)
 137 {
 138   QDesktopWidget *d = qApplication->desktop();
 139
 140   // Java assumes square pixels. Qt, more intelligently, does not.
 141   // What to do? Well.. Average them?
 142   // FIXME: Weird values?
 143   int dpi = (d->logicalDpiX() + d->logicalDpiY()) >> 1;
 144
 145   return (jint)dpi;
 146 }
 147
 148 /*
 149  */
 150 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtToolkit_sync
 151 (JNIEnv *env, jobject obj)
 152 {
 153   // SyncX needs to be called from the main thread.
 154   mainThread->postEventToMain( new AWTSyncEvent( qApplication ) );
 155 }
 156