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

   1 /* qttextareapeer.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 <time.h>
  40 #include <QTextEdit>
  41 #include <QTextCursor>
  42 #include <gnu_java_awt_peer_qt_QtTextAreaPeer.h>
  43 #include "mainthreadinterface.h"
  44 #include "componentevent.h"
  45 #include "slotcallbacks.h"
  46 #include "qtcomponent.h"
  47 #include "qtstrings.h"
  48
  49 class TASetText : public AWTEvent {
  50  private:
  51   QTextEdit *area;
  52   QString *text;
  53
  54  public:
  55   TASetText(QTextEdit *w, QString *t) : AWTEvent()
  56   {
  57     area = w;
  58     text = t;
  59   }
  60
  61   void runEvent()
  62   {
  63     area->setPlainText( *text );
  64     delete text;
  65   }
  66 };
  67
  68 /*
  69  * Construct a QTextEdit object
  70  */
  71 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_init
  72 (JNIEnv *env, jobject obj)
  73 {
  74   QWidget *parentWidget = (QWidget *)getParentWidget( env, obj );
  75   assert( parentWidget );
  76   QTextEdit *editor = new QTextEdit( parentWidget );
  77   editor->setGeometry( 0, 0, 400, 400 );
  78   assert( editor );
  79
  80   //  setLineWrapColumnOrWidth ( int w );
  81   setNativeObject( env, obj, editor );
  82
  83   // Connect TextChanged events.
  84   connectTextEdit(editor, env, obj);
  85 }
  86
  87 /*
  88  * Returns the cursor position.
  89  */
  90 JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_getCaretPosition
  91 (JNIEnv *env, jobject obj)
  92 {
  93   int index;
  94
  95   QTextEdit *editor = (QTextEdit *) getNativeObject( env, obj );
  96   assert( editor );
  97
  98   index = editor->textCursor().position();;
  99
 100   return (jint)index;
 101 }
 102
 103 /*
 104  * Returns the char index at a given screen point
 105  */
 106 JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_getIndexAtPoint
 107 (JNIEnv *env, jobject obj, jint x, jint y)
 108 {
 109   QPoint *p = new QPoint(x,y);
 110
 111   QTextEdit *editor = (QTextEdit *) getNativeObject( env, obj );
 112   assert( editor );
 113   QTextCursor curs = editor->cursorForPosition( *p );
 114   delete p;
 115
 116   return curs.position();
 117 }
 118
 119 /*
 120  * Returns the start (start = true) or end (start = false) of the selection.
 121  */
 122 JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_getSelection
 123 (JNIEnv *env, jobject obj, jboolean isStart)
 124 {
 125   int start, end;
 126
 127   QTextEdit *editor = (QTextEdit *) getNativeObject( env, obj );
 128   assert( editor );
 129   start = editor->textCursor().selectionStart();
 130   end =  editor->textCursor().selectionEnd();
 131
 132   return ((isStart == JNI_TRUE) ? start : end);
 133 }
 134
 135 /*
 136  * Returns the text.
 137  */
 138 JNIEXPORT jstring JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_getText
 139 (JNIEnv *env, jobject obj)
 140 {
 141   QTextEdit *editor = (QTextEdit *) getNativeObject( env, obj );
 142   assert( editor );
 143   QString text = editor->toPlainText();
 144
 145   return getJavaString(env, &text);
 146 }
 147
 148 /*
 149  * Sets the editor text.
 150  */
 151 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_setText
 152 (JNIEnv *env, jobject obj, jstring str)
 153 {
 154   QTextEdit *editor = (QTextEdit *) getNativeObject( env, obj );
 155   assert( editor );
 156
 157   QString *qStr = getQString(env, str);
 158   mainThread->postEventToMain( new TASetText( editor, qStr ) );
 159 }
 160
 161 /*
 162  * Sets the selection.
 163  */
 164 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_select
 165 (JNIEnv *env, jobject obj, jint startpos, jint endpos)
 166 {
 167   QTextEdit *editor = (QTextEdit *) getNativeObject( env, obj );
 168   assert( editor );
 169
 170   QTextCursor curs(editor->document());
 171   curs.setPosition(startpos);
 172   curs.setPosition(endpos, QTextCursor::KeepAnchor);
 173   editor->setTextCursor( curs );
 174 }
 175
 176 /*
 177  * Allow or disallow editing.
 178  */
 179 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_setEditable
 180 (JNIEnv *env, jobject obj, jboolean editable)
 181 {
 182   QTextEdit *editor = (QTextEdit *) getNativeObject( env, obj );
 183   assert( editor );
 184   editor->setReadOnly( (editable != JNI_TRUE) );
 185 }
 186
 187 /*
 188  * Sets the cursor position
 189  */
 190 JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtTextAreaPeer_setCaretPosition
 191 (JNIEnv *env, jobject obj, jint index)
 192 {
 193   QTextEdit *editor = (QTextEdit *) getNativeObject( env, obj );
 194   assert( editor );
 195
 196   editor->textCursor().setPosition( index );
 197 }