【算法设计与分析基础】关灯游戏
① R.java 用于存储一些全局变量
package lightoff;
public class R {
/*
public static int lightCondition[][] = {
{1,0,0,1,1},
{1,0,0,1,1},
{1,0,0,1,1},
{1,0,0,1,1},
};
*/
public static int lightCondition[][] = {
{1,1,1,1},
{1,1,1,1},
{1,1,1,1},
{1,1,1,1},
};
//灯面板有 n x m 个灯
public static int n = lightCondition.length;//行
public static int m = lightCondition[0].length;//列
public static int rect_Height = 30;//形成的矩阵的高
public static int rect_Width = 30;//形成的矩阵的宽
public static int[][] lightswitch=new int[n][m];//哪些开关按过
public static int frame_Height = 240+ n * rect_Height;//窗口的高度
public static int frame_Width = 240 + m * rect_Width;//窗口的宽度
public static Gauss g ;//高斯消元算法类
public static LightPanel lP = new LightPanel();//n x m 灯面板
public static ButtonPanel bP = new ButtonPanel();//按钮面板
public static SurfaceView sv;//关灯游戏界面
public static Demo d;//演示界面
public static double g_sleeptime = 0.3;//生成开关影响表的暂停时间
public static double l_sleeptime = 0.1;//转化成上三角矩阵的暂停时间
public static double r_sleeptime = 0.5;//结果分析的暂停时间
public static boolean demo = true;//是否需要演示。如果不需要请把这里设为false
//矩阵面板左上角顶点的坐标
public static int rect_x = 50;
public static int rect_y = 50;
/**
* 重绘 n x m 面板
* @param _n 行
* @param _m 列
*/
public static void rewriteLightCondition(int _n,int _m){
n=_n;
m=_m;
if(n>21){
rect_Height = rect_Width = 20;
}
else{
rect_Height = rect_Width = 30;
}
frame_Height = 240+ n * rect_Height;//窗口的高度
frame_Width = 240 + m * rect_Width;
lightCondition=new int[n][m];
lightswitch=new int[n][m];
int i,j;
for(i=-1;++i
package lightoff;
import java.lang.reflect.InvocationTargetException;
public class GameBegin {
public static void main(String[] args){
try {
javax.swing.SwingUtilities.invokeAndWait(new Runnable(){
public void run(){
R.sv = new SurfaceView();
}
});
} catch (InvocationTargetException | InterruptedException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
}
package lightoff;
class BreakPoint{
int r;//断点所在的行
int c;//当前是0还是1
public BreakPoint(){
r = -1;
c = -1;
}
}
public class Gauss {
int num = R.n * R.m;
int[] ls = new int[num];
int[][] gauss = new int[num][num];
int[] answer = new int[num];
BreakPoint[] bp = new BreakPoint[num];
boolean exist = false;
int n = 0;
/**
* 建立开关影响的表,做高斯消元求解
*/
public Gauss(){
}
public void setgauss(){
if(R.demo){
R.d.step_next(0);
R.d.settitle("根据开关的影响建立高斯消元表");
}
/////////// 1. 开关的影响：建立高斯消元表 /////////////
int i,j,col;
//遍历 n x m 面板
for(i=-1;++i= 0 && y >= 0 && x < R.n && y < R.m;
}
/**
* 进行异或运算
* @param a 数字1
* @param b 数字2
* @return a 异或 b
*/
int xor(int a,int b){
return a^b;
}
/**
* 交换两个数字
* @param x1 第一个数字的行坐标
* @param x2 第二个数字的行坐标
* @param y 它们有个共同的列坐标
*/
void swap(int x1,int x2,int y){
gauss[x1][y]^=gauss[x2][y];
gauss[x2][y]^=gauss[x1][y];
gauss[x1][y]^=gauss[x2][y];
}
/**
* 交换两行
* @param r1 其中一行
* @param r2 另外一行
*/
void swap(int r1,int r2){
int i;
for(i=-1;++i X
* 0 0 1 => 无解
* 0 1 0 => 无解
* 0 1 1 => X
* 1 0 0 => 0
* 1 0 1 => 1
* 1 1 0 => 1
* 1 1 1 => 0
* @param a gauss表中对角线上的值
* @param b gauss表中对角线 右边一行的值乘以对应的answer 之和 % 2
* @param c 该行上的常数列
* @param i 该行行数
* @return 分析后的值
*/
int analyze(int a,int b,int c,int i){
int col = 0;
if(R.demo){
R.d.setabc(a, b, c);
}
if(a==1){
return Math.abs(b-c);
}
else if(a==0){
if(b==c){
// 在 X 这里设置个断点
col = getbp(i);
if(col == -1){
bp[n] = new BreakPoint();
bp[n].r = i;
bp[n].c = 0;
n++;
return 0;
}
return col;
}
else{
return -1;
}
}
return 0;
}
boolean Solve(){
if(R.demo){
R.d.setfVisible(true);
R.d.step_next(2);
R.d.settitle("结果分析(与反向替换类似)");
}
int i,j,sum;
for(i=num;--i>=0;){
if(R.demo){
R.d.setrow(i);
}
sum=0;
for(j=num;--j>i;){
sum+=gauss[i][j]*answer[j];
}
answer[i]=analyze(gauss[i][i],sum%2,ls[i],i);
if(R.demo){
R.d.rd();
R.sleep(R.r_sleeptime);
}
if(answer[i]==-1){
return false;
}
}
exist = true;
R.bP.next = true;
if(R.demo){
R.d.setVisible(false);
R.d.setfVisible(false);
}
return true;
}
public boolean check(){
int i,j,sum;
for(i=-1;++i=0;){
if(bp[i].c==0){
bp[i].c ^= 1;
break;
}
bp[i].c ^= 1;
}
return true;
}
public int getbp(int r){
int i;
for(i=-1;++i
package lightoff;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JPanel;
public class LightPanel extends JPanel implements MouseListener{
private int light_x;//鼠标点击到的灯_列
private int light_y;//速表点击到的灯_行
public int n = 0;//第几个答案
public LightPanel(){
//this.setSize(R.frame_Width,(int)((double)R.frame_Height*0.8));
this.setBackground(new Color(255,255,255));
this.addMouseListener(this);
}
public void redraw(){
this.repaint();
}
public void paint(Graphics g) {
super.paint(g);
int i,j;
int num =(R.g!=null && R.g.exist)?(int)Math.pow(2,R.g.n):1;
g.setColor(new Color(0,0,0));
g.setFont(new Font("Georgia",Font.PLAIN,20));
g.drawString(String.valueOf((n)%(num)+1)+"\\"+String.valueOf(num), R.rect_x, R.rect_y-3);
for(i=-1;++i=0 && i< R.n && j>=0 && j< R.m){
this.light_x = (int)i;
this.light_y = (int)j;
return true;
}
return false;
}
void isinLightPanel(int i,int j){
if(i>=0 && i=0 && j ⑤ SurfaceView.java 主窗口文件。
package lightoff;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
public class SurfaceView extends JFrame implements ActionListener{
Frame_Setting fs = new Frame_Setting();
Help h = new Help();
public SurfaceView(){
////////// 1.设置窗口大小 /////////
// System.out.println(R.frame_Width+" "+R.frame_Height);
this.setBounds(300,0,R.frame_Width,R.frame_Height);
this.setTitle("LightOFF Game");
////////// 2.设置按下X键后关闭窗口 /////////
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(null);
this.setResizable(true);
////////// 3.添加菜单组件 //////////
JMenuBar JMB = new JMenuBar();
this.setJMenuBar(JMB);
JMenu JM_File = new JMenu("File");
JMenu JM_Help = new JMenu("Help");
JMB.add(JM_File);
JMB.add(JM_Help);
JMenuItem JI_set = new JMenuItem("setting");
JMenuItem JI_help = new JMenuItem("help");
JM_File.add(JI_set);
JM_Help.add(JI_help);
JI_set.addActionListener(this);
JI_help.addActionListener(this);
JMenuItem JI_Demo = new JMenuItem("");
if(R.demo){
JI_Demo.setText("Demo √");
}
else{
JI_Demo.setText("Demo");
}
JI_Demo.addActionListener(this);
JM_File.add(JI_Demo);
////////// 4.添加按钮面板和灯面板 //////////
R.bP.setBounds(0,0,R.frame_Width,R.bP.bt.Box_Height+10);
this.add(R.bP);
R.lP.setBounds(0,R.bP.getHeight(),R.frame_Width,(int)((double)R.frame_Height*0.9));
this.add(R.lP);
setVisible(true);
}
public void setSize(){
this.setSize(R.frame_Width,R.frame_Height);
R.bP.setSize(R.frame_Width,R.bP.bt.Box_Height+10);
R.lP.setSize(R.frame_Width,(int)((double)R.frame_Height*0.9));
}
@Override
public void actionPerformed(ActionEvent e){
if(e.getActionCommand().equals("setting")){
fs.setVisible(true);
}
else if(e.getActionCommand().equals("Demo √")){
R.demo = false;
((JMenuItem)e.getSource()).setText("Demo");
}
else if(e.getActionCommand().equals("Demo")){
R.demo = true;
((JMenuItem)e.getSource()).setText("Demo √");
}
else if(e.getActionCommand().equals("help")){
h.setVisible(true);
}
}
}
class Frame_Setting extends JFrame implements ActionListener{
String[] rowandcol ={"1","2","3","4","5","6","7","8","9","10",
"11","12","13","14","15","16","17","18","19","20",
"21","22","23","24","25","26","27","28","29","30",
"31","32"};
String[] pausetime = {"0.1","0.2","0.3","0.4","0.5","0.6","0.7","0.8","0.9","1.0"};
JComboBox jCB;
JComboBox jCB1;
JComboBox jCB2;
public Frame_Setting(){
int i;
this.setTitle("Setting");
this.setBounds(0,0,200,190);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
this.setLayout(null);
this.setResizable(false);
//////////// 1. 设置行与列 //////////
//行和列的标签
JLabel label_row = new JLabel("行：");
label_row.setBounds(20,30,30,30);
JLabel label_col = new JLabel("列：");
label_col.setBounds(20,60,30,30);
JLabel label_pt = new JLabel("暂停时间:");
label_pt.setBounds(0,85,90,30);
this.add(label_row);
this.add(label_col);
this.add(label_pt);
//行和列的下拉列表
jCB = new JComboBox();
jCB1 = new JComboBox();
for(i=-1;++i⑥ ButtonPanel.java 按钮面板文件，显示在主窗口上方，带四个按钮next reset get oppo
package lightoff;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
public class ButtonPanel extends JPanel implements MouseListener{
BoxText bt = new BoxText("next","华文琥珀",Font.PLAIN,20,0,0);
BoxText bt1 = new BoxText("reset","华文琥珀",Font.PLAIN,20,bt.Box_Width+10,0);
BoxText bt2 = new BoxText("get","华文琥珀",Font.PLAIN,20,bt.Box_Width+bt1.Box_Width+20,0);
BoxText bt3 = new BoxText("oppo","华文琥珀",Font.PLAIN,20,bt.Box_Width+bt1.Box_Width+bt2.Box_Width+30,0);
boolean next = true;
public ButtonPanel(){
this.setBackground(new Color(255,255,255));
this.addMouseListener(this);
}
public void paint(Graphics g){
super.paint(g);
bt.draw(g);
bt1.draw(g);
bt2.draw(g);
bt3.draw(g);
}
@Override
public void mouseClicked(MouseEvent e) {
// TODO 自动生成的方法存根
}
@Override
public void mousePressed(MouseEvent e) {
// TODO 自动生成的方法存根
}
@Override
public void mouseReleased(MouseEvent e) {
int x = e.getX();
int y = e.getY();
if(e.getButton()==e.BUTTON1){
/**
* 如果点击到了"next"按钮
*/
if(next && R.g!=null && R.g.exist && bt.isClicked(x, y)){
if(R.g!=null && R.g.breakpoint_next()){
if(R.demo && !R.d.isShowing()){
R.d.setVisible(true);
}
next = false;
Thread t = new Thread(new Runnable(){
public void run(){
if(R.g.Solve()){
R.g.displayanswer();
R.lP.n++;
R.lP.redraw();
}
}
});
t.start();
}
}
/**
* 按到"reset"按钮
*/
if(R.g!= null && bt1.isClicked(x, y)){
R.rewriteLightCondition(R.n, R.m);
R.g.exist = false;
R.lP.redraw();
R.lP.n = 0;
R.sv.setSize();
}
/**
* 按到"get"按钮
*/
if(bt2.isClicked(x, y)){
if(R.demo){
R.d = new Demo();
R.d.setVisible(true);
}
Thread t = new Thread(new Runnable(){
public void run(){
R.g = new Gauss();
R.g.setgauss();
R.g.ga();
if(R.g.Solve()){
R.g.displayanswer();
}
else{
JOptionPane.showMessageDialog(R.sv,"该问题无解","错误",JOptionPane.ERROR_MESSAGE);
}
R.lP.redraw();
R.lP.n = 0;
}
});
t.start();
}
/**
* 按到"OPPO"按钮
*/
if(bt3.isClicked(x, y)){
int i,j;
for(i=-1;++i⑦ Demo.java 算法演示的图形界面。
package lightoff;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Demo extends JFrame{
int num = R.n * R.m;
public boolean running = false;
public boolean noanswer = false;
private ShowPlay sp = new ShowPlay();
public Demo(){
this.setTitle("Demo");
this.setSize(120 + (num * num + 1) * 2 + 150,
num * 30+ 50 + ShowPlay.title_Height);
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
this.setLayout(null);
sp.setBounds(0,0,this.getWidth(),this.getHeight());
this.add(sp);
}
/*
* 记录交换的两行
*/
public void swap_rd(int r1,int r2){
sp.swap[0] = r1;
sp.swap[1] = r2;
}
/*
* 记录消元的两行
*/
public void add_rd(int r1,int r2){
sp.add[0] = r1;
sp.add[1] = r2;
}
/*
* 记录灯的列数
*/
public void col_rd(int col){
sp.col = col;
}
/*
* 重绘ShowPlay面板
*/
public void rd(){
sp.repaint();
}
/*
* 下一步骤
*/
public void step_next(int s){
sp.step = s;
}
/*
* 设置标题
*/
public void settitle(String title){
sp.title = title;
}
/*
* 设置行
*/
public void setrow(int i){
sp.row = i;
}
/*
* 设置三个值a,b,c
*/
public void setabc(int a,int b,int c){
sp.a = a;
sp.b = b;
sp.c = c;
}
/*
* 建立影响表的时候记录当前完成的列数
*/
public void setcol(int y){
sp.y = y;
}
public void setfVisible(boolean v){
sp.f.setVisible(v);
}
}
class ShowPlay extends JPanel{
int num = R.n * R.m;//正方形边长
public int rect_Width = 120;//矩阵的宽度
public int rect_Height = num * 30+10;//矩阵的高度
public static int title_Height = 30;//标题的高度
String title = "";//标题
int[] swap = new int[2];//记录交换的两行
int[] add = new int[2];//记录消元的两行
int row;//灯的行数
int col;//灯的列数
int a;//结果分析时候的a值(对角线值)
int b;//结果分析时候的b值(sum%2)
int c;//结果分析时候的c值(常数列)
int y;//建立开关影响表的时候，建立了多少列
int step = -1;//当前是第几步骤，调用不同的绘制方法
String fontface = "Georgia";//字体
int fonttype = Font.PLAIN;//字体字形是常规
int fontsize = 20;//字体大小
String gauss1 = "开关影响表，根据开关的影响情况建立表。";
Frame f = new Frame();
public ShowPlay(){
this.setBackground(new Color(255,255,255));
}
public void paintGauss(Graphics g){
int i,j;
//////////// 说明 ///////////////////////////
g.setFont(new Font("微软雅黑",Font.BOLD,15));
g.drawString("例如3x3的灯面板", 1, title_Height+20);
g.drawString("按下第一行",1 , title_Height+30+121);
g.drawString("第一列的开关",1,title_Height+50+121);
g.drawString("按下第二行",1 , title_Height+60+242);
g.drawString("第二列的开关",1,title_Height+80+242);
g.drawString("总共能建9个表", 1, title_Height+85+220+134);
g.drawString("(行x列)", 1, title_Height+85+220+134+20);
g.drawString("然后竖向输出", 1, title_Height+85+220+134+40);
try {
g.drawImage(ImageIO.read(new File(new File("").getAbsoluteFile().getAbsoluteFile()+"\\Image\\table1.bmp")), 1,title_Height+25,100,110,this);
g.drawImage(ImageIO.read(new File(new File("").getAbsoluteFile().getAbsoluteFile()+"\\Image\\table2.bmp")), 1,title_Height+65+110,100,110,this);
g.drawImage(ImageIO.read(new File(new File("").getAbsoluteFile().getAbsoluteFile()+"\\Image\\table3.bmp")), 1,title_Height+85+220,100,110,this);
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
///////// 1.画最左边的那个长矩阵 //////////////////////
g.drawRect(0, title_Height, rect_Width, rect_Height);
g.setFont(new Font(fontface,fonttype,fontsize));//设置字体
g.setColor(new Color(0xB9,0xC0,0xB6));//设置颜色
///////////// 根据列数画开关影响表 /////////////
for(j=-1;++j=col) || (i==swap[1]&&j>=col)){
g.setFont(new Font(fontface,Font.BOLD,fontsize));
g.setColor(new Color(255,0,0));
}
else if( (i == add[0]&&j>=col) || (i == add[1]&&j>=col)){
g.setFont(new Font(fontface,Font.BOLD,fontsize));
g.setColor(new Color(0,0,255));
}
else if(j == col){
g.setFont(new Font(fontface,Font.BOLD,fontsize));
g.setColor(new Color(0,255,0));
}
else
{
g.setFont(new Font(fontface,fonttype,fontsize));
g.setColor(new Color(0xB9,0xC0,0xB6));
}
g.drawString(String.valueOf(R.g.gauss[i][j])+" "
, rect_Width + 10 + j * 30
, title_Height + 30 + i * 30);
}
g.setColor(new Color(0,255,255));
g.drawString(String.valueOf(R.g.ls[i]),
rect_Width + 10 + j * 30,
title_Height + 30 + i * 30);
}
}
public void paintSolve(Graphics g){
int i = 0,j = 0,k;
g.setColor(new Color(0,0,0));
g.drawRect(0, title_Height, rect_Width, rect_Height);
//////////////// 输出 a b c ///////////////////////
g.setColor(new Color(255,0,0));
g.drawString(String.valueOf(a),5 , title_Height + 30 + row * 30);
g.setColor(new Color(0,0,255));
g.drawString(String.valueOf(b),35 , title_Height + 30 + row * 30);
g.setColor(new Color(0,255,255));
g.drawString(String.valueOf(c),65 , title_Height + 30 + row * 30);
//////////////// 输出答案 ///////////////////////
for(k=num;--k>=row;){
g.setColor(new Color(0,0,0));
g.drawString(String.valueOf(R.g.answer[k]),
95,
title_Height + 30 + k * 30);
}
for(i=-1;++i=row){
if(j==row){
g.setFont(new Font(fontface,Font.BOLD,fontsize));
g.setColor(new Color(255,0,0));
}
else{
g.setFont(new Font(fontface,Font.BOLD,fontsize));
g.setColor(new Color(0,0,255));
}
}
else{
g.setFont(new Font(fontface,fonttype,fontsize));
g.setColor(new Color(0xB9,0xC0,0xB6));
}
g.drawString(String.valueOf(R.g.gauss[i][j])+" ",
rect_Width + 10 + j * 30,
title_Height + 30 + i * 30);
}
g.setColor(new Color(0,255,255));
g.drawString(String.valueOf(R.g.ls[i]),
rect_Width + 10 + j * 30,
title_Height + 30 + i * 30);
}
}
public void paint(Graphics g){
super.paint(g);
/////////// 绘制标题 //////////////////////
g.setFont(new Font("微软雅黑",Font.BOLD,20));
g.drawString(title,10,25);
// System.out.println(title);
/////////// 当前是第几步骤，调用不同的绘制函数 //////
switch(step){
case 0:
paintGauss(g);
break;
case 1:
paintga(g);
break;
case 2:
paintSolve(g);
break;
};
}
}
class Frame extends JFrame{
String path = new File("").getAbsolutePath();
class Panel extends JPanel{
public void paint(Graphics g){
super.paint(g);
g.setColor(new Color(255,255,255));
g.fillRect(0,0,this.getWidth(),this.getHeight());
g.setFont(new Font("微软雅黑",Font.BOLD,20));
g.setColor(new Color(0,0,0));
g.drawString("对值进行分析(X表示0和1都可以)", 2, 20);
g.drawString("0 0 0 => X", 2, 40);
g.drawString("0 0 1 => 无解", 2, 60);
g.drawString("0 1 0 => 无解", 2, 80);
g.drawString("0 1 1 => X", 2, 100);
g.drawString("1 0 0 => 0", 2, 120);
g.drawString("1 0 1 => 1", 2, 140);
g.drawString("1 1 0 => 1", 2, 160);
g.drawString("1 1 1 => 0", 2, 180);
}
}
Panel p = new Panel();
public Frame(){
this.setBounds(924,117,312,221);
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
this.add(p);
}
}
⑧ Help.java ppt图片演示，显示效果不是很好，建议还是看ppt
package lightoff;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Help extends JFrame{
pptPanel ppt = new pptPanel();
public Help(){
this.add(ppt);
this.setSize(900,721);
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
}
}
class pptPanel extends JPanel implements MouseListener {
private ArrayList imgName = new ArrayList();
private int totalnum = 0;
private int n = 0;
public pptPanel(){
this.addMouseListener(this);
File f = new File("");
String path = f.getAbsolutePath()+"\\PPT\\幻灯片";
int num = 1;
// System.out.println(path+String.valueOf(num)+".JPG");
f = new File(path+String.valueOf(num++)+".BMP");
Image i;
while(f.exists()){
try {
i = ImageIO.read(f);
imgName.add(i);
// System.out.println(path+String.valueOf(num)+".JPG");
f = new File(path+String.valueOf(num++)+".BMP");
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
totalnum = num - 2;
}
public void paint(Graphics g){
super.paint(g);
g.drawImage(imgName.get(n%totalnum),0,0,this.getWidth(),this.getHeight(),this);
g.setFont(new Font("Georgia",Font.PLAIN,20));
g.drawString(String.valueOf(n%totalnum+1)+"\\"+String.valueOf(totalnum), this.getWidth()-70, this.getHeight()-10);
}
@Override
public void mouseClicked(MouseEvent e) {
// System.out.println(e.getButton());
if(e.getButton()==e.BUTTON1){
n++;
this.repaint();
}
else if(e.getButton()==e.BUTTON3){
n--;
if(n==-1){
n = totalnum-1;
}
this.repaint();
}
}
@Override
public void mousePressed(MouseEvent e) {
// TODO 自动生成的方法存根
}
@Override
public void mouseReleased(MouseEvent e) {
// TODO 自动生成的方法存根
}
@Override
public void mouseEntered(MouseEvent e) {
// TODO 自动生成的方法存根
}
@Override
public void mouseExited(MouseEvent e) {
// TODO 自动生成的方法存根
}
}
⑨ BoxText.java 自己编写的按钮文件。
package lightoff;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JLabel;
public class BoxText{
String text = "";
String fontface = "";
int fonttype = 0;
int fontsize = 0;
int Box_x = 0;
int Box_y = 0;
int Box_Height = 0;
int Box_Width = 0;
public BoxText(String text,String fontface,int fonttype,int fontsize,int Box_x,int Box_y){
/////////// 1. 获取值：text: 文本; fontface: 字体; fonttype: 字体类型; fontsize: 字体大小 ///////////////////
////////// Box_x,Box_y: 按钮左上角顶点所在位置 ///////////////////
this.text = text;
this.fontface = fontface;
this.fonttype = fonttype;
this.fontsize = fontsize;
this.Box_x = Box_x;
this.Box_y = Box_y;
////////////// 2. 根据字体的高度和宽度，设置箱子的高度和宽度 ///////////////////////
Font f = new Font(fontface, fonttype, fontsize);
FontMetrics fm = new JLabel().getFontMetrics(f);
Box_Height = fm.getHeight() ;
Box_Width = fm.stringWidth(text) + 20;
}
/**
* 获取文本左下角顶点的坐标x
* @return 文本左下角顶点的坐标x
*/
public int getText_x(){
return Box_x + 10;
}
/**
* 获取文本左下角顶点的坐标y
* @return 文本左下角顶点的坐标y
*/
public int getText_y(){
return Box_y + Box_Height - 5;
}
/**
* 获取面板paint函数中的Graphics来将该箱子画上去
* @param g 某画板的Graphics
*/
public void draw(Graphics g){
g.setColor(new Color(0,0,0));
g.fillRect(Box_x,Box_y,Box_Width,Box_Height);
g.setFont(new Font(fontface,fonttype,fontsize));
g.setColor(new Color(255,255,255));
g.drawString(text, getText_x(), getText_y());
}
/**
* 看箱子是否被按下
* @param x 鼠标弹起的x坐标
* @param y 鼠标谈起的y坐标
* @return 布尔类型：是否按下
*/
public boolean isClicked(int x,int y){
return x >= Box_x && y >= Box_y && x <= Box_x+Box_Width && y <= Box_y + Box_Height;
}
}
程序和算法分析ppt下载地址：http://download.csdn.net/detail/u013580497/8953269