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

   1 /* qtlabelpeer.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 <assert.h>
  39 #include <QLabel>
  40 #include <QString>
  41 #include <gnu_java_awt_peer_qt_QtLabelPeer.h>
  42 #include "qtcomponent.h"
  43 #include "qtstrings.h"
  44 #include "mainthreadinterface.h"
  45 #include "keybindings.h"
  46
  47 // java.awt.Label justification fields
  48 #define LEFT   0
  49 #define CENTER 1
  50 #define RIGHT  2
  51
  52 class MyLabel : public QLabel
  53 {
  54 public:
  55   MyLabel(JNIEnv *env, jobject obj, QWidget *parent) : QLabel( parent )
  56   {
  57     setup(env, obj);
  58   }
  59
  60   ~MyLabel()
  61   {
  62     destroy();
  63   }
  64
  65 #define I_KNOW_WHAT_IM_DOING
  66 #define PARENT QLabel
  67 #include "eventmethods.h"
  68 };
  69
  70 class LabelTitle : public AWTEvent {
  71
  72  private:
  73   QLabel *widget;
  74   QString *string;
  75   Qt::Alignment alignment;
  76
  77  public:
  78   LabelTitle(QLabel *w, QString *s, Qt::Alignment a) : AWTEvent()
  79   {
  80     widget = w;
  81     string = s;
  82     alignment = a;
  83   }
  84
  85   void runEvent()
  86   {
  87     if( string != NULL)
  88       {
  89         widget->setText( *string );
  90         delete string;
  91       }
  92     else
  93       {
  94         widget->setAlignment( alignment );
  95       }
  96   }
  97 };
  98
  99 /*
 100  * Init a QLabel
 101  */
 102 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtLabelPeer_init
 103 (JNIEnv *env, jobject obj)
 104 {
 105   QWidget *parentWidget = (QWidget *) getParentWidget( env, obj );
 106   QLabel *label = new MyLabel( env, obj, parentWidget );
 107   assert( label );
 108   setNativeObject( env, obj, label );
 109 }
 110
 111 /*
 112  * Sets the text
 113  */
 114 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtLabelPeer_setText
 115 (JNIEnv *env, jobject obj, jstring str)
 116 {
 117   QLabel *label = (QLabel *) getNativeObject( env, obj );
 118   assert( label );
 119
 120   QString *qStr = getQString(env, str);
 121   mainThread->postEventToMain( new LabelTitle( label, qStr, 0 ) );
 122 }
 123
 124 /*
 125  * Sets the alignment
 126  */
 127 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtLabelPeer_setAlignment
 128 (JNIEnv *env, jobject obj, jint align)
 129 {
 130   Qt::Alignment alignment = Qt::AlignVCenter;
 131
 132   QLabel *label = (QLabel *) getNativeObject( env, obj );
 133   assert( label );
 134
 135   switch(align)
 136     {
 137     case LEFT:
 138       alignment |= Qt::AlignLeft;
 139       break;
 140
 141     case RIGHT:
 142       alignment |= Qt::AlignRight;
 143       break;
 144
 145     default:
 146     case CENTER:
 147       alignment |= Qt::AlignHCenter;
 148       break;
 149     }
 150   mainThread->postEventToMain( new LabelTitle( label, NULL, alignment ) );
 151 }