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package control;
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import java.awt.Color;
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import java.awt.Graphics;
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import javax.swing.JPanel;
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import model.Block;
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import model.Box;
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/**
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* 预显窗口的实现细节类
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*/
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public class PreView extends JPanel {
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private Color frontColor = Color.BLUE;
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private Box[][] boxes =new Box[4][4];
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private int style, boxWidth=25, boxHeight=25;
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private boolean isTiled = false;
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/**
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* 预显窗口类构造函数
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*/
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public PreView() {
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for (int i = 0; i < boxes.length; i++) {
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for (int j = 0; j < boxes[i].length; j++)
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boxes[i][j] = new Box(false);
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}
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this.setOpaque(false);//设置透明
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}
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/**
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* 预显窗口类构造函数
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* @param backColor Color, 窗口的背景色
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* @param frontColor Color, 窗口的前景色
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*/
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public PreView( Color frontColor) {
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this();
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this.frontColor = frontColor;
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}
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/**
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* 设置预显窗口的方块样式
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* @param style int,对应ErsBlock类的STYLES中的28个值
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*/
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public void setStyle(int style) {
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this.style = style;
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repaint();
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}
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/**
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* 覆盖JComponent类的函数，画组件。
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* @param g 图形设备环境
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*/
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public void paint(Graphics g) {
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super.paint(g);
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// g.drawRect(0, 0, 100, 100);
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g.draw3DRect(0, 0, 101, 101, true);
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int key = 0x8000;
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for (int i = 0; i < boxes.length; i++) {
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for (int j = 0; j < boxes[i].length; j++) {
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// Color color = (((key & style) != 0) ? frontColor :
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// backColor);
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if ((key & style) != 0) {
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g.setColor(frontColor);
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g.fill3DRect(j * boxWidth, i * boxHeight, boxWidth,
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boxHeight, true);
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}
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key >>= 1;
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}
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}
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}
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}
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