[小娱乐] 一个能拖动组件、改变组件大小的容器

/*

* JDragpullPane.java

*

* Created on 2007年3月20日, 上午12:31

*/

package javax.swing;

import java.awt.Color;

import java.awt.Component;

import java.awt.Rectangle;

import javax.swing.plaf.metal.MetalInternalFrameUI;

/**

* 一个能拖动组件、改变组件大小的容器

* @author vlinux

*/

public class JDragpullPane extends javax.swing.JDesktopPane {

/** Creates new form BeanForm */

public JDragpullPane() {

initComponents();

}

/** This method is called from within the constructor to

* initialize the form.

* WARNING: Do NOT modify this code. The content of this method is

* always regenerated by the Form Editor.

*/

//

private void initComponents() {

}//

// 变量声明 - 不进行修改

// 变量声明结束

/**

* 将组件c添加到容器中

* 等效于 add( c, JDesktopPane.DEFAULT_LAYER, true )

*/

public Component add( Component c ) {

add( c, javax.swing.JDesktopPane.DEFAULT_LAYER );

return c;

}

/**

* 将组件C添加到容器中

* 等效于 add( c, o, true );

*/

public void add( Component c, Object o ) {

add( c, o, true );

}

/**

* 将组件C添加到容器中

* 其中 dragable 标明了该组件足否允许被拖动

* 等效于 add( c, o, dragable );

*/

public void add( Component c, Object o, boolean dragable ) {

Rectangle rect = c.getBounds();

ComponentPane comp = ComponentPane.instance( rect, dragable );

comp.add(c);

super.add( comp, o );

}

}

class ComponentPane extends javax.swing.JInternalFrame {

public ComponentPane( Rectangle rect ) {

super();

setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, new Color(255, 102, 0)));

setBounds( rect );

setResizable(true);

setVisible( true );

}

public static ComponentPane instance( Rectangle rect, boolean dragable ) {

ComponentPane cp = new ComponentPane( rect );

MetalInternalFrameUI ui = (MetalInternalFrameUI) cp.getUI();

if( dragable ) {

ui.setPalette(true);

} else {

ui.setNorthPane(null);

}

return cp;

}

}