frametesttextkeylistener.java

简单的java文本编辑器

/*************************************************************************************
* 类名： FrameTestTextKeyListener                                                               
*                                                                    
* 功能： 此类为主类FrameTest中用于关联用户快捷键动作的类
*        
**************************************************************************************/
package edit.com;

import java.awt.event.KeyListener;
import javax.swing.JMenuItem;
import java.awt.event.KeyEvent;

class FrameTestTextKeyListener implements KeyListener {
    private EditArea editArea;
    private JMenuItem[] editItems;
    private FrameTestTools tool;
    private FrameTestState state;
    private FrameTestDialogs dialogs;

    FrameTestTextKeyListener( EditArea aEditArea,
                              JMenuItem[] aEditItems,
                              FrameTestTools aTool,
                              FrameTestState aState,
                              FrameTestDialogs aDialogs ) {
        editArea = aEditArea;
        editItems = aEditItems;
        tool = aTool;
        state = aState;
        dialogs = aDialogs;
    }

   public void keyPressed( KeyEvent k ) {
        editArea.setIsEditTrue();
        editItems[0].setEnabled( true );

        //当用户按下”F3"时，表示用户继续上一次查找
        if ( k.getKeyCode() == KeyEvent.VK_F3 ) {
            if ( dialogs.getFindBox() != null ) {
                dialogs.getFindBox().find();
                tool.findText( state , editArea , dialogs.getFindBox() );
            }
        }else if ( k.getKeyCode() == KeyEvent.VK_F4 ) {//当用户按下“F4”时，表示用户继续上一次替换
            if ( dialogs.getReplaceBox() != null ) {
                dialogs.getReplaceBox().setString( editArea.getText() );
                dialogs.getReplaceBox().find();
                tool.replaceText( state, editArea, dialogs.getReplaceBox() );
            }
        }
    }

    public void keyReleased( KeyEvent k ) {
    }

    public void keyTyped( KeyEvent k ) {
    }
}