src/macosx/classes/sun/lwawt/LWTextComponentPeer.java

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   1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  31 import java.awt.Insets;
  32 import java.awt.SystemColor;
  33 import java.awt.TextComponent;
  34 import java.awt.event.TextEvent;
  35 import java.awt.event.InputMethodListener;
  36 import java.awt.event.InputMethodEvent;
  37 import java.awt.im.InputMethodRequests;
  38 import java.awt.peer.TextComponentPeer;
  39 import sun.awt.AWTAccessor;
  40 
  41 import javax.swing.JComponent;
  42 import javax.swing.event.DocumentEvent;
  43 import javax.swing.event.DocumentListener;
  44 import javax.swing.text.Document;
  45 import javax.swing.text.JTextComponent;
  46 
  47 abstract class LWTextComponentPeer<T extends TextComponent, D extends JComponent>
  48         extends LWComponentPeer<T, D>
  49         implements DocumentListener, TextComponentPeer, InputMethodListener {
  50 
  51     /**
  52      * Character with reasonable value between the minimum width and maximum.
  53      */
  54     protected static final char WIDE_CHAR = 'w';
  55     private volatile boolean firstChangeSkipped;
  56 
  57     LWTextComponentPeer(final T target,
  58                         final PlatformComponent platformComponent) {
  59         super(target, platformComponent);
  60         if (!getTarget().isBackgroundSet()) {
  61             getTarget().setBackground(SystemColor.text);
  62         }
  63     }
  64 
  65     @Override
  66     void initializeImpl() {
  67         super.initializeImpl();
  68         synchronized (getDelegateLock()) {
  69             // This listener should be added before setText().
  70             getTextComponent().getDocument().addDocumentListener(this);
  71         }
  72         setEditable(getTarget().isEditable());
  73         setText(getTarget().getText());
  74         getTarget().addInputMethodListener(this);


  78             select(start, end);
  79         }
  80         setCaretPosition(getTarget().getCaretPosition());
  81         firstChangeSkipped = true;
  82     }
  83 
  84     @Override
  85     protected final void disposeImpl() {
  86         synchronized (getDelegateLock()) {
  87             // visible caret has a timer thread which must be stopped
  88             getTextComponent().getCaret().setVisible(false);
  89         }
  90         super.disposeImpl();
  91     }
  92 
  93     /**
  94      * This method should be called under getDelegateLock().
  95      */
  96     abstract JTextComponent getTextComponent();
  97 
  98     public Dimension getPreferredSize(final int rows, final int columns) {
  99         final Insets insets;
 100         synchronized (getDelegateLock()) {
 101             insets = getDelegate().getInsets();
 102         }
 103         final int borderHeight = insets.top + insets.bottom;
 104         final int borderWidth = insets.left + insets.right;
 105         final FontMetrics fm = getFontMetrics(getFont());
 106         final int charWidth = (fm != null) ? fm.charWidth(WIDE_CHAR) : 10;
 107         final int itemHeight = (fm != null) ? fm.getHeight() : 10;
 108         return new Dimension(columns * charWidth + borderWidth,
 109                              rows * itemHeight + borderHeight);
 110     }
 111 
 112     @Override
 113     public final void setEditable(final boolean editable) {
 114         synchronized (getDelegateLock()) {
 115             getTextComponent().setEditable(editable);
 116         }
 117     }
 118 
 119     @Override
 120     public final String getText() {
 121         synchronized (getDelegateLock()) {
 122             return getTextComponent().getText();
 123         }
 124     }
 125 
 126     @Override
 127     public final void setText(final String l) {
 128         synchronized (getDelegateLock()) {
 129             // JTextArea.setText() posts two different events (remove & insert).


 170         synchronized (getDelegateLock()) {
 171             getTextComponent().setCaretPosition(pos);
 172         }
 173         repaintPeer();
 174     }
 175 
 176     @Override
 177     public final int getCaretPosition() {
 178         synchronized (getDelegateLock()) {
 179             return getTextComponent().getCaretPosition();
 180         }
 181     }
 182 
 183     @Override
 184     public final InputMethodRequests getInputMethodRequests() {
 185         synchronized (getDelegateLock()) {
 186             return getTextComponent().getInputMethodRequests();
 187         }
 188     }
 189 

 190     @Override
 191     public final boolean isFocusable() {
 192         return getTarget().isFocusable();
 193     }
 194 
 195     protected final void revalidate() {
 196         synchronized (getDelegateLock()) {
 197             getTextComponent().invalidate();
 198             getDelegate().validate();
 199         }
 200     }
 201 
 202     protected final void postTextEvent() {
 203         postEvent(new TextEvent(getTarget(), TextEvent.TEXT_VALUE_CHANGED));
 204         synchronized (getDelegateLock()) {
 205             revalidate();
 206         }
 207     }
 208 
 209     @Override


   1 /*
   2  * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  31 import java.awt.Insets;
  32 import java.awt.SystemColor;
  33 import java.awt.TextComponent;
  34 import java.awt.event.TextEvent;
  35 import java.awt.event.InputMethodListener;
  36 import java.awt.event.InputMethodEvent;
  37 import java.awt.im.InputMethodRequests;
  38 import java.awt.peer.TextComponentPeer;
  39 import sun.awt.AWTAccessor;
  40 
  41 import javax.swing.JComponent;
  42 import javax.swing.event.DocumentEvent;
  43 import javax.swing.event.DocumentListener;
  44 import javax.swing.text.Document;
  45 import javax.swing.text.JTextComponent;
  46 
  47 abstract class LWTextComponentPeer<T extends TextComponent, D extends JComponent>
  48         extends LWComponentPeer<T, D>
  49         implements DocumentListener, TextComponentPeer, InputMethodListener {
  50 
  51 



  52     private volatile boolean firstChangeSkipped;
  53 
  54     LWTextComponentPeer(final T target,
  55                         final PlatformComponent platformComponent) {
  56         super(target, platformComponent);
  57         if (!getTarget().isBackgroundSet()) {
  58             getTarget().setBackground(SystemColor.text);
  59         }
  60     }
  61 
  62     @Override
  63     void initializeImpl() {
  64         super.initializeImpl();
  65         synchronized (getDelegateLock()) {
  66             // This listener should be added before setText().
  67             getTextComponent().getDocument().addDocumentListener(this);
  68         }
  69         setEditable(getTarget().isEditable());
  70         setText(getTarget().getText());
  71         getTarget().addInputMethodListener(this);


  75             select(start, end);
  76         }
  77         setCaretPosition(getTarget().getCaretPosition());
  78         firstChangeSkipped = true;
  79     }
  80 
  81     @Override
  82     protected final void disposeImpl() {
  83         synchronized (getDelegateLock()) {
  84             // visible caret has a timer thread which must be stopped
  85             getTextComponent().getCaret().setVisible(false);
  86         }
  87         super.disposeImpl();
  88     }
  89 
  90     /**
  91      * This method should be called under getDelegateLock().
  92      */
  93     abstract JTextComponent getTextComponent();
  94 
  95     public Dimension getMinimumSize(final int rows, final int columns) {
  96         final Insets insets;
  97         synchronized (getDelegateLock()) {
  98             insets = getTextComponent().getInsets();
  99         }
 100         final int borderHeight = insets.top + insets.bottom;
 101         final int borderWidth = insets.left + insets.right;
 102         final FontMetrics fm = getFontMetrics(getFont());
 103         return new Dimension(fm.charWidth(WIDE_CHAR) * columns + borderWidth,
 104                              fm.getHeight() * rows + borderHeight);


 105     }
 106 
 107     @Override
 108     public final void setEditable(final boolean editable) {
 109         synchronized (getDelegateLock()) {
 110             getTextComponent().setEditable(editable);
 111         }
 112     }
 113 
 114     @Override
 115     public final String getText() {
 116         synchronized (getDelegateLock()) {
 117             return getTextComponent().getText();
 118         }
 119     }
 120 
 121     @Override
 122     public final void setText(final String l) {
 123         synchronized (getDelegateLock()) {
 124             // JTextArea.setText() posts two different events (remove & insert).


 165         synchronized (getDelegateLock()) {
 166             getTextComponent().setCaretPosition(pos);
 167         }
 168         repaintPeer();
 169     }
 170 
 171     @Override
 172     public final int getCaretPosition() {
 173         synchronized (getDelegateLock()) {
 174             return getTextComponent().getCaretPosition();
 175         }
 176     }
 177 
 178     @Override
 179     public final InputMethodRequests getInputMethodRequests() {
 180         synchronized (getDelegateLock()) {
 181             return getTextComponent().getInputMethodRequests();
 182         }
 183     }
 184 
 185     //TODO IN XAWT we just return true..
 186     @Override
 187     public final boolean isFocusable() {
 188         return getTarget().isFocusable();
 189     }
 190 
 191     protected final void revalidate() {
 192         synchronized (getDelegateLock()) {
 193             getTextComponent().invalidate();
 194             getDelegate().validate();
 195         }
 196     }
 197 
 198     protected final void postTextEvent() {
 199         postEvent(new TextEvent(getTarget(), TextEvent.TEXT_VALUE_CHANGED));
 200         synchronized (getDelegateLock()) {
 201             revalidate();
 202         }
 203     }
 204 
 205     @Override