1 /*
   2  * Copyright (c) 1996, 2013, 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
  23  * questions.
  24  */
  25 
  26 package sun.awt.windows;
  27 
  28 import java.awt.*;
  29 import java.awt.peer.*;
  30 import java.awt.event.ActionEvent;
  31 import java.awt.event.KeyEvent;
  32 import java.awt.im.InputMethodRequests;
  33 
  34 final class WTextFieldPeer extends WTextComponentPeer implements TextFieldPeer {
  35 
  36     // WComponentPeer overrides
  37 
  38     @Override
  39     public Dimension getMinimumSize() {
  40         FontMetrics fm = getFontMetrics(((TextField)target).getFont());
  41         return new Dimension(fm.stringWidth(getText()) + 24,
  42                              fm.getHeight() + 8);
  43     }
  44 
  45     @Override
  46     @SuppressWarnings("deprecation")
  47     public boolean handleJavaKeyEvent(KeyEvent e) {
  48         switch (e.getID()) {
  49            case KeyEvent.KEY_TYPED:
  50                if ((e.getKeyChar() == '\n') && !e.isAltDown() && !e.isControlDown()) {
  51                     postEvent(new ActionEvent(target, ActionEvent.ACTION_PERFORMED,
  52                                               getText(), e.getWhen(), e.getModifiers()));
  53                     return true;
  54                }
  55            break;
  56         }
  57         return false;
  58     }
  59 
  60     // TextFieldPeer implementation
  61 
  62     @Override
  63     public native void setEchoChar(char echoChar);
  64 
  65     @Override
  66     public Dimension getPreferredSize(int cols) {
  67         return getMinimumSize(cols);
  68     }
  69 
  70     @Override
  71     public Dimension getMinimumSize(int cols) {
  72         FontMetrics fm = getFontMetrics(((TextField)target).getFont());
  73         return new Dimension(fm.charWidth('0') * cols + 24, fm.getHeight() + 8);
  74     }
  75 
  76     @Override
  77     public InputMethodRequests getInputMethodRequests() {
  78         return null;
  79     }
  80 
  81     // Toolkit & peer internals
  82 
  83     WTextFieldPeer(TextField target) {
  84         super(target);
  85     }
  86 
  87     @Override
  88     native void create(WComponentPeer parent);
  89 
  90     @Override
  91     void initialize() {
  92         TextField tf = (TextField)target;
  93         if (tf.echoCharIsSet()) {
  94             setEchoChar(tf.getEchoChar());
  95         }
  96         super.initialize();
  97     }
  98 }