J2SEButton.java :  » UnTagged » microemu » org » microemu » device » j2se » Android Open Source

/*
 *  MicroEmulator
 *  Copyright (C) 2001 Bartek Teodorczyk <barteo@barteo.net>
 *
 *  It is licensed under the following two licenses as alternatives:
 *    1. GNU Lesser General Public License (the "LGPL") version 2.1 or any newer version
 *    2. Apache License (the "AL") Version 2.0
 *
 *  You may not use this file except in compliance with at least one of
 *  the above two licenses.
 *
 *  You may obtain a copy of the LGPL at
 *      http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
 *
 *  You may obtain a copy of the AL at
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the LGPL or the AL for the specific language governing permissions and
 *  limitations.
 *  
 *  @version $Id: J2SEButton.java 1716 2008-05-19 11:59:04Z barteo $ 
 */

package org.microemu.device.j2se;

import java.awt.event.KeyEvent;
import java.util.Hashtable;
import java.util.StringTokenizer;

import org.microemu.device.InputMethod;
import org.microemu.device.impl.Button;
import org.microemu.device.impl.ButtonDetaultDeviceKeyCodes;
import org.microemu.device.impl.ButtonName;
import org.microemu.device.impl.Shape;

public class J2SEButton implements Button {

  private String name;

  private ButtonName functionalName;

  private Shape shape;

  private int[] keyboardKeys;

  private String keyboardCharCodes;

  private int keyCode;

  private Hashtable inputToChars;

  private boolean modeChange;

  /**
   * Create special functional buttons. e.g. ButtonName.DELETE and
   * ButtonName.BACK_SPACE if not defined in 'device.xml'
   * 
   * @param name
   */
  J2SEButton(ButtonName functionalName) {
    this(20002, functionalName.getName(), null, Integer.MIN_VALUE, null, null, null, false);
  }

  /**
   * @param name
   * @param shape
   * @param keyCode -
   *            Integer.MIN_VALUE when unspecified
   * @param keyName
   * @param chars
   */
  public J2SEButton(int skinVersion, String name, Shape shape, int keyCode, String keyboardKeys,
      String keyboardChars, Hashtable inputToChars, boolean modeChange) {
    this.name = name;
    this.shape = shape;
    if (skinVersion >= NAME_RIMARY_SINCE_SKIN_VERSION) {
      this.functionalName = ButtonName.getButtonName(name);
    } else {
      this.functionalName = J2SEButtonDefaultKeyCodes.getBackwardCompatibleName(parseKeyboardKey(keyboardKeys));
      if (this.functionalName == null) {
        this.functionalName = ButtonName.getButtonName(name);
      }
    }

    if (skinVersion >= NAME_RIMARY_SINCE_SKIN_VERSION) {
      this.modeChange = modeChange;
    } else {
      this.modeChange = (functionalName == ButtonName.KEY_POUND);
    }

    if (keyCode == Integer.MIN_VALUE) {
      this.keyCode = ButtonDetaultDeviceKeyCodes.getKeyCode(this.functionalName);
    } else {
      this.keyCode = keyCode;
    }

    if (keyboardKeys != null) {
      StringTokenizer st = new StringTokenizer(keyboardKeys, " ");
      while (st.hasMoreTokens()) {
        int key = parseKeyboardKey(st.nextToken());
        if (key == -1) {
          continue;
        }
        if (this.keyboardKeys == null) {
          this.keyboardKeys = new int[1];
        } else {
          int[] newKeyboardKeys = new int[this.keyboardKeys.length + 1];
          System.arraycopy(this.keyboardKeys, 0, newKeyboardKeys, 0, this.keyboardKeys.length);
          this.keyboardKeys = newKeyboardKeys;
        }
        this.keyboardKeys[this.keyboardKeys.length - 1] = key;
      }
    }
    if ((this.keyboardKeys == null) || (this.keyboardKeys.length == 0)) {
      this.keyboardKeys = J2SEButtonDefaultKeyCodes.getKeyCodes(this.functionalName);
    }
    if (keyboardChars != null) {
      this.keyboardCharCodes = keyboardChars;
    } else {
      this.keyboardCharCodes = J2SEButtonDefaultKeyCodes.getCharCodes(this.functionalName);
    }

    this.inputToChars = inputToChars;
  }

  /**
   * @deprecated
   */
  public int getKeyboardKey() {
    if (keyboardKeys.length == 0) {
      return 0;
    }
    return keyboardKeys[0];
  }

  public int getKeyCode() {
    return keyCode;
  }

  public ButtonName getFunctionalName() {
    return functionalName;
  }

  public int[] getKeyboardKeyCodes() {
    return keyboardKeys;
  }

  /**
   * CharCodes do not depends on InputMode. This is computer keyboard codes
   * when it is impossible to map to VK keys.
   */
  public char[] getKeyboardCharCodes() {
    if (keyboardCharCodes == null) {
      return new char[0];
    }
    return keyboardCharCodes.toCharArray();
  }

  public boolean isModeChange() {
    return modeChange;
  }

  void setModeChange() {
    modeChange = true;
  }

  public char[] getChars(int inputMode) {
    char[] result = null;
    switch (inputMode) {
    case InputMethod.INPUT_123:
      result = (char[]) inputToChars.get("123");
      break;
    case InputMethod.INPUT_ABC_LOWER:
      result = (char[]) inputToChars.get("abc");
      break;
    case InputMethod.INPUT_ABC_UPPER:
      result = (char[]) inputToChars.get("ABC");
      break;
    }
    if (result == null) {
      result = (char[]) inputToChars.get("common");
    }
    if (result == null) {
      result = new char[0];
    }

    return result;
  }

  public boolean isChar(char c, int inputMode) {
    if (inputToChars == null) {
      return false;
    }
    c = Character.toLowerCase(c);
    char[] chars = getChars(inputMode);
    if (chars != null) {
      for (int i = 0; i < chars.length; i++) {
        if (c == Character.toLowerCase(chars[i])) {
          return true;
        }
      }
    }

    return false;
  }

  public String getName() {
    return name;
  }

  public Shape getShape() {
    return shape;
  }

  private static int parseKeyboardKey(String keyName) {
    int key;
    try {
      key = KeyEvent.class.getField(keyName).getInt(null);
    } catch (Exception e) {
      try {
        key = Integer.parseInt(keyName);
      } catch (NumberFormatException e1) {
        key = -1;
      }
    }
    return key;
  }

}