item.java

来自「手机模拟器源代码,可以在网页上调用applet应用来摸拟手机,在线体验手机游戏和」· Java 代码 · 共 125 行

/*
 *  MicroEmulator
 *  Copyright (C) 2001 Bartek Teodorczyk <[e-mail]>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contributor(s):
 *    3GLab
 */
 
package javax.microedition.lcdui;


public abstract class Item
{

	static final int OUTOFITEM = Integer.MAX_VALUE;

  StringComponent labelComponent;
  Screen owner = null;
	private boolean focus = false;
  
  
  Item(String label)
  {
		labelComponent = new StringComponent(label);
  }
  
  
	public String getLabel()
	{
		return labelComponent.getText();
	}


	public void setLabel(String label)	
	{
		labelComponent.setText(label);
		repaint();
	}

	
  int getHeight()
	{
		return labelComponent.getHeight();
	}
	
	
	boolean isFocusable()
	{
		return false;
	}
	
	
  void keyPressed(int keyCode)
  {
  }
  
    
  abstract int paint(Graphics g);
	
	
	void paintContent(Graphics g)
	{
		labelComponent.paint(g);
	}
	
	
	void repaint()
	{
		if (owner != null) {
			owner.repaint();
		}
	}
	
  
	boolean hasFocus()
	{
		return focus;
	}
  
  
	void setFocus(boolean state)
	{
		focus = state;
	}
  
  
  Screen getOwner()
  {
    return owner;
  }
	
	
  void setOwner(Screen owner)
  {
    this.owner = owner;
  }
	
	
	boolean select()
	{
		return false;
	}
  

	int traverse(int gameKeyCode, int top, int bottom, boolean action)
	{
		return 0;
	}
	
}