columnlayout.java

来自「一个用java写的地震分析软件(无源码)」· Java 代码 · 共 56 行

package org.trinet.jiggle;

import java.awt.*;

/*                                                        
 * Based on /opt/swing-1.0.2/examples/Metalworks/src/MetalworksPrefs.java
 */
class ColumnLayout implements LayoutManager {

  int xInset = 5;
  int yInset = 5;
  int yGap = 2;

  public void addLayoutComponent(String s, Component c) {}

  public void layoutContainer(Container c) {
      Insets insets = c.getInsets();
      int height = yInset + insets.top;
      
      Component[] children = c.getComponents();
      Dimension compSize = null;
      for (int i = 0; i < children.length; i++) {
	  compSize = children[i].getPreferredSize();
	  children[i].setSize(compSize.width, compSize.height);
	  children[i].setLocation( xInset + insets.left, height);
	  height += compSize.height + yGap;
      }

  }

  public Dimension minimumLayoutSize(Container c) {
      Insets insets = c.getInsets();
      int height = yInset + insets.top;
      int width = 0 + insets.left + insets.right;
      
      Component[] children = c.getComponents();
      Dimension compSize = null;
      for (int i = 0; i < children.length; i++) {
	  compSize = children[i].getPreferredSize();
	  height += compSize.height + yGap;
	  width = Math.max(width, compSize.width + insets.left + insets.right + xInset*2);
      }
      height += insets.bottom;
      return new Dimension( width, height);
  }
  
  public Dimension preferredLayoutSize(Container c) {
      return minimumLayoutSize(c);
  }
   
  public void removeLayoutComponent(Component c) {}


} // end of inner class - ColumnLayout