newlayout.java

桌面管理 可以将桌面的快捷方式集中管理

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 * and open the template in the editor.
 */
package com.deskManager.window.contr;

import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Insets;
import java.awt.LayoutManager;

/**
 *
 * @author Administrator
 */
public class newLayout implements LayoutManager, java.io.Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	int hgap;
	int vgap;

	public newLayout() {
		this(0, 0);
	}

	public newLayout(int hgap, int vgap) {
		this.hgap = hgap;
		this.vgap = vgap;
	}

	@Override
	public void addLayoutComponent(String name, Component comp) {
		throw new UnsupportedOperationException("Not supported yet.");
	}

	@Override
	public void removeLayoutComponent(Component comp) {
		throw new UnsupportedOperationException("Not supported yet.");
	}

	@Override
	public Dimension preferredLayoutSize(Container parent) {
		// 容器四条边框的尺寸
		Insets s = parent.getInsets();
		Dimension p = parent.getSize();
		Dimension dp = new Dimension(s.left + s.right + p.width, s.bottom + s.top);
		Component c;
		int height = 0;
		int width = 0;
		int n = parent.getComponentCount();
		if (n != 0) {
			// 计算各个组件的最大宽度和最大高度
			for (int i = 0; i < n; i++) {
				c = parent.getComponent(i);
				int temph = c.getHeight(), tempw = c.getWidth();
				if (temph == 0) {
					temph = c.getPreferredSize().height;
				}
				if (tempw == 0) {
					tempw = c.getPreferredSize().width;
				}
				if (height < temph) {
					height = temph;
				}
				if (width < tempw) {
					width = tempw;
				}
			}
			int ncols = p.width / (width + vgap);
			if (ncols == 0) {
				ncols = 1;
			}
			int nrows = 0;
			if(n % ncols!=0){
				nrows= n / ncols + 1;
			}else {
				nrows= n / ncols;
			}
			dp.height += nrows * (height + hgap);            
			return dp;
		} else {
			return p;
		}
	}

	@Override
	public Dimension minimumLayoutSize(Container parent) {
		throw new UnsupportedOperationException("Not supported yet.");
	}

	@Override
	public void layoutContainer(Container parent) {
		int n = parent.getComponentCount();
		if (n <= 0) {
			return;
		}
		Dimension p = preferredLayoutSize(parent);
		// System.out.println(p.width);
		//  System.out.println(p.height);
		Component c;
		int height = 0, width = 0;
		// 计算各个组件的最大宽度和最大高度
		for (int i = 0; i < n; i++) {
			c = parent.getComponent(i);
			int temph = c.getHeight(), tempw = c.getWidth();
			if (temph == 0) {
				temph = c.getPreferredSize().height;
			}
			if (tempw == 0) {
				tempw = c.getPreferredSize().width;
			}
			if (height < temph) {
				height = temph;
			}
			if (width < tempw) {
				width = tempw;
			}
		}
		int ncols = p.width / (width + vgap);
		if (ncols == 0) {
			ncols = 1;
		}
		int nrows = n / (ncols) + 1;
		for (int m = 0, x = vgap; m < ncols; m++, x += vgap + width) {
			for (int r = 0, y = hgap; r < nrows; r++, y += hgap + height) {
				int i = r * ncols + m;
				if (i < n) {
					parent.getComponent(i).setBounds(x, y, width, height);
				}
			}
		}
	}

	@Override
	public String toString() {
		return "hgap=[" + hgap + "],vgap=[" + vgap + "]";
	}
}