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实现类似XP风格的快速按钮

 2008-01-05 09:52:10 来源:WEB开发网   
核心提示:实现功能: 类似于Windows xp中的快速按钮的风格, 答应指定按钮的状态是自弹起(就是鼠标键按下时按钮产生被按下的效果, 鼠标键抬起的时候按钮自动回复原状)着是开关按钮(点击一次, 按钮被按下, 再点击一次, 按钮被弹起), 并能够设定一组(多个)或多组互斥按钮(即同组中有且只有一个按钮一直处于被按下的状态).


  实现功能: 类似于Windows xp中的快速按钮的风格, 答应指定按钮的状态是自弹起(就是鼠标键按下时按钮产生被按下的效果, 鼠标键抬起的时候按钮自动回复原状)着是开关按钮(点击一次, 按钮被按下, 再点击一次, 按钮被弹起), 并能够设定一组(多个)或多组互斥按钮(即同组中有且只有一个按钮一直处于被按下的状态). 当然, 这个类不是很完善, 有许多地方可以改进, 比如没有加入当按钮处于禁止使用的状态(Disabled), 应该再引入一个Image来显示成灰色的效果等. 您就自己改改吧. :)
  程序代码:
  SpeedButton.java
  --------------------------------
  import javax.swing.*;
  import java.awt.*;
  import java.awt.event.*;
  
  public class SpeedButton extends JButton implements MouseListener {
  PRivate boolean entered = false; /* 标志, 用于判定鼠标是否在按钮上 */
  private boolean downed = false; /* 标志, 用于按钮是否被按下 */
  
  private boolean enabledDowned = false; /* 标志, 用于按钮是否答应被按下 */
  
  private Image image = null;
  private int groupID = 0; /* 指定按钮属于哪个互斥组, 取值为0时不判定 */
  
  private int buttonID; /* 按钮本身的ID号, 唯一 */
  
  /**
  * 这个构造器有点烦, 这里可以进行优化成多个构造器来组合.
  * @see com.javax.swing.JButton
  * @author delfan,2002.07.23
  * @version 1.0
  */
  public SpeedButton(int buttonID, Image image, int width, int height, String tip, boolean enabledDowned,boolean initmode, int groupID, ActionListener actionListener) {
  this.buttonID = buttonID;
  this.image = image;
  addMouseListener(this);
  setPreferredSize(new Dimension(width, height));
  setToolTipText(tip);
  this.enabledDowned = enabledDowned;
  this.groupID = groupID;
  downed = initmode;
  addActionListener(actionListener);
  }
  
  public void paint(Graphics g) {
  if (getSize().height == 2 getSize().width == 2) { // 画分隔条, 当按钮宽度或高度为2的时候,
  g.setColor(new Color(119, 133, 168)); // 认为是分隔条
  g.fillRect(0, 0, getWidth() - 1, getHeight() - 1);
  g.setColor(new Color(129, 143, 178));
  g.fillRect(1, 1, getWidth(), getHeight());
  setEnabled(false);
  }
  else
  {
  if (entered) { // 鼠标在按钮内
  g.setColor(new Color(119, 133, 168));
  g.fillRect(0, 0, getWidth(), getHeight());
  g.setColor(new Color(8, 36, 107));
  g.drawRect(0, 0, getWidth() - 1, getHeight() - 1);
  if (image != null) g.drawImage(image, 2, 2, getParent());
  } else { // 鼠标不在按钮内
  g.setColor(getParent().getBackground());
  g.fillRect(0, 0, getWidth(), getHeight());
  if (image != null) g.drawImage(image, 2, 2, getParent());
  }
  
  if (downed) { // 按钮被按下
  g.setColor(new Color(181, 190, 214));
  g.fillRect(0, 0, getWidth(), getHeight());
  g.setColor(new Color(8, 36, 107));
  g.drawRect(0, 0, getWidth() - 1, getHeight() - 1);
  if (image != null) g.drawImage(image, 3, 3, getParent());
  }
  }
  }
  
  public void update(Graphics g) {paint(g);}
  
  /**
  * 按钮是否处于按下状态
  */
  public boolean isDowned() {return downed;}
  
  /**
  * 取得按钮的组索引号
  */
  public int getGroupID() {return groupID;}
  
  public void setDowned(boolean downed) {this.downed = downed;repaint();}
  
  public void mouseEntered(MouseEvent e) {entered = true;repaint();}
  
  public void mouseExited(MouseEvent e) {entered = false;repaint();}
  
  public void mouseClicked(MouseEvent e) {}
  
  public void mousePressed(MouseEvent e) {
  if (enabledDowned && downed && groupID == 0)
  downed = false;
  else
  downed = true;
  repaint();
  }
  
  public void mouseReleased(MouseEvent e) {
  if (!enabledDowned) downed = false;
  repaint();
  if (groupID != 0) // 通过存放按钮的容器进行互斥按钮的状态改变操作
  for (int i = 0; i < getParent().getComponentCount(); i++)
  if (getParent().getComponent(i) instanceof SpeedButton) {
  if (((SpeedButton) getParent().getComponent(i)).getGroupID() == groupID
  && ((SpeedButton) getParent().getComponent(i)) != this)
  ((SpeedButton) getParent().getComponent(i)).setDowned(false);
  }
  }
  
  public int getButtonID() {return buttonID;}
  
  }

Tags:实现 类似 XP

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