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     public boolean handleJavaKeyEvent(KeyEvent e) {
  47         switch (e.getID()) {
  48            case KeyEvent.KEY_TYPED:
  49                if ((e.getKeyChar() == '\n') && !e.isAltDown() && !e.isControlDown()) {
  50                     postEvent(new ActionEvent(target, ActionEvent.ACTION_PERFORMED,
  51                                               getText(), e.getWhen(), e.getModifiers()));
  52                     return true;
  53                }
  54            break;
  55         }
  56         return false;
  57     }
  58 
  59     // TextFieldPeer implementation
  60 
  61     @Override
  62     public native void setEchoChar(char echoChar);
  63 
  64     @Override
  65     public Dimension getPreferredSize(int cols) {
  66         return getMinimumSize(cols);
  67     }
  68 
  69     @Override
  70     public Dimension getMinimumSize(int cols) {
  71         FontMetrics fm = getFontMetrics(((TextField)target).getFont());
  72         return new Dimension(fm.charWidth('0') * cols + 24, fm.getHeight() + 8);
  73     }
  74 
  75     @Override
  76     public InputMethodRequests getInputMethodRequests() {
  77         return null;
  78     }
  79 
  80     // Toolkit & peer internals
  81 
  82     WTextFieldPeer(TextField target) {
  83         super(target);
  84     }
  85 
  86     @Override
  87     native void create(WComponentPeer parent);
  88 
  89     @Override
  90     void initialize() {
  91         TextField tf = (TextField)target;
  92         if (tf.echoCharIsSet()) {
  93             setEchoChar(tf.getEchoChar());
  94         }
  95         super.initialize();
  96     }
  97 }