hsdraw1.java

这是一个java画图程序。非常的好。里面提供了几种色彩的画笔。

ly2[ltp] = e.getY() ; 
ltp ++ ; 
lcolor[ltp] = lcolor[ltp-1] ; 
} 

if(oo == 1) { 
System.out.println ("otp = " + otp) ; 
ox2[otp] = e.getX() ; 
oy2[otp] = e.getY() ; 
otp ++ ; 
ocolor[otp] = ocolor[otp-1] ; 
} 

if(oo == 2) { 
System.out.println ("rtp = " + rtp) ; 
rx2[rtp] = e.getX() ; 
ry2[rtp] = e.getY() ; 
rtp ++ ; 
rcolor[rtp] = rcolor[rtp-1] ; 
} 

if(oo == 3) { 
System.out.println ("fotp = " + fotp) ; 
fox2[fotp] = e.getX() ; 
foy2[fotp] = e.getY() ; 
fotp ++ ; 
focolor[fotp] = focolor[fotp-1] ; 
} 

if(oo == 4) { 
System.out.println ("frtp = " + frtp) ; 
frx2[frtp] = e.getX() ; 
fry2[frtp] = e.getY() ; 
frtp ++ ; 
frcolor[frtp] = frcolor[frtp-1] ; 
} 
  } 

public void mouseEntered(MouseEvent e) { 

} 

public void mouseExited(MouseEvent e) { 

} 

//按扭事件 
public void actionPerformed(ActionEvent e) { 
JFileChooser fc = new JFileChooser() ; 
fc.setFileSelectionMode(JFileChooser.FILES_ONLY) ; 

//按下颜色按钮设置画笔颜色 
if(e.getActionCommand().equals("red")) { 
lcolor[ltp] = 0 ; 
ocolor[otp] = 0 ; 
rcolor[rtp] = 0 ; 
focolor[fotp] = 0 ; 
frcolor[frtp] = 0 ; 
} 
if(e.getActionCommand().equals("yellow")) { 
lcolor[ltp] = 1 ; 
ocolor[otp] = 1 ; 
rcolor[rtp] = 1 ; 
focolor[fotp] = 1 ; 
frcolor[frtp] = 1 ; 
} 
if(e.getActionCommand().equals("blue")) { 
lcolor[ltp] = 2 ; 
ocolor[otp] = 2 ; 
rcolor[rtp] = 2 ; 
focolor[fotp] = 2 ; 
frcolor[frtp] = 2 ; 
} 
if(e.getActionCommand().equals("black")) { 
lcolor[ltp] = 3 ; 
ocolor[otp] = 3 ; 
rcolor[rtp] = 3 ; 
focolor[fotp] = 3 ; 
frcolor[frtp] = 3 ; 
} 
if(e.getActionCommand().equals("green")) { 
lcolor[ltp] = 4 ; 
ocolor[otp] = 4 ; 
rcolor[rtp] = 4 ; 
focolor[fotp] = 4 ; 
frcolor[frtp] = 4 ; 
} 

if(e.getActionCommand().equals("orange")) { 
lcolor[ltp] = 5 ; 
ocolor[otp] = 5 ; 
rcolor[rtp] = 5 ; 
focolor[fotp] = 5 ; 
frcolor[frtp] = 5 ; 
} 
if(e.getActionCommand().equals("pink")) { 
lcolor[ltp] = 6 ; 
ocolor[otp] = 6 ; 
rcolor[rtp] = 6 ; 
focolor[fotp] = 6 ; 
frcolor[frtp] = 6 ; 
} 

//按下功能按钮设置画笔型号 
if(e.getActionCommand().equals("Line")) { 
System.out.println ("oo = 0 ;") ; 
oo = 0 ; 
} 
if(e.getActionCommand().equals("Oval")) { 
System.out.println ("oo = 1 ;") ; 
oo = 1 ; 
} 
if(e.getActionCommand().equals("Rect")) { 
System.out.println ("oo = 2 ;") ; 
oo = 2 ; 
} 
if(e.getActionCommand().equals("fillOval")) { 
System.out.println ("oo = 3 ;") ; 
oo = 3 ; 
} 
if(e.getActionCommand().equals("fillRect")) { 
System.out.println ("oo = 4 ;") ; 
oo = 4 ; 
} 

//打开原有文件 
if(e.getActionCommand().equals("OPEN")) { 
fc.showOpenDialog(this) ; 

File ff = fc.getSelectedFile() ; 

HsDraw1.tt.setText(ff.getPath()) ; 

this.read() ; 
} 

//保存当前画板上的图象 
if(e.getActionCommand().equals("SAVE")) { 
fc.showSaveDialog(this) ; 

File ff = fc.getSelectedFile() ; 

HsDraw1.tt.setText(ff.getPath()) ; 

this.save() ; 
} 

//清除画板 
if(e.getActionCommand().equals("clear")) { 
this.clear() ; 
} 
} 

public void windowOpened(WindowEvent e) { 
// TODO: Add your code here 
} 

public void windowClosing(WindowEvent e) { 
// this.save() ; 

System.exit(0) ;  
} 

public void windowClosed(WindowEvent e) { 
// TODO: Add your code here 
} 

public void windowIconified(WindowEvent e) { 
// TODO: Add your code here 
} 

public void windowDeiconified(WindowEvent e) { 
// TODO: Add your code here 
} 

public void windowActivated(WindowEvent e) { 
// TODO: Add your code here 
} 

public void windowDeactivated(WindowEvent e) { 
// TODO: Add your code here 
} 

//清除画板 
void clear() { 
System.out.println ("clear") ; 
ltp = 0 ; 
otp = 0 ; 
rtp = 0 ; 
fotp = 0 ; 
frtp = 0 ; 

for (int i = 0; i<num; i++) { 
lx1[i] = 0 ; 
ly1[i] = 0 ; 
lx2[i] = 0 ; 
ly2[i] = 0 ; 

ox1[i] = 0 ; 
oy1[i] = 0 ; 
ox2[i] = 0 ; 
oy2[i] = 0 ; 

rx1[i] = 0 ; 
ry1[i] = 0 ; 
rx2[i] = 0 ; 
ry2[i] = 0 ; 

fox1[i] = 0 ; 
foy1[i] = 0 ; 
fox2[i] = 0 ; 
foy2[i] = 0 ; 

frx1[i] = 0 ; 
fry1[i] = 0 ; 
frx2[i] = 0 ; 
fry2[i] = 0 ; 
} 
this.repaint() ; 
} 

//保存当前画板图象 
void save() { 
try { 
; 
File f = new File(HsDraw1.tt.getText()) ; 

FileWriter fw = new FileWriter(f) ; 

PrintWriter pw = new PrintWriter(fw) ; 

//保存 
System.out.println ("SAVE") ; 

//保存线 
pw.println(ltp) ; 
for (int i = 0; i<ltp; i++){ 
pw.println(lcolor[i]) ; 
pw.println(lx1[i]) ; 
pw.println(ly1[i]) ; 
pw.println(lx2[i]) ; 
pw.println(ly2[i]) ; 
} 

//保存圆 
pw.println(otp) ; 
for (int i = 0; i<otp ; i++) { 
pw.println(ocolor[i]) ; 
pw.println(ox1[i]) ; 
pw.println(oy1[i]) ; 
pw.println(ox2[i]) ; 
pw.println(oy2[i]) ; 
} 

//保存矩形 
pw.println(rtp) ; 
for (int i = 0; i<rtp ; i++) { 
pw.println(rcolor[i]) ; 
pw.println(rx1[i]) ; 
pw.println(ry1[i]) ; 
pw.println(rx2[i]) ; 
pw.println(ry2[i]) ; 
} 

//保存实心圆 
pw.println(fotp) ; 
for (int i = 0; i<fotp ; i++) { 
pw.println(focolor[i]) ; 
pw.println(fox1[i]) ; 
pw.println(foy1[i]) ; 
pw.println(fox2[i]) ; 
pw.println(foy2[i]) ; 
} 

//保存实心矩形 
pw.println(frtp) ; 
for (int i = 0; i<frtp ; i++) { 
pw.println(frcolor[i]) ; 
pw.println(frx1[i]) ; 
pw.println(fry1[i]) ; 
pw.println(frx2[i]) ; 
pw.println(fry2[i]) ; 
} 
pw.close() ; 
 } 
 catch (Exception ex) { 
 } 
} 

//读文件中的数据 并显示在画板上 
void read() { 
System.out.println ("OPEN") ; 

this.clear() ;//打开前清除画板 

try { 

File f = new File(HsDraw1.tt.getText()) ; 

FileReader fr = new FileReader(f) ; 

BufferedReader bfr = new BufferedReader(fr) ; 

//读线的数据 
int ltpnum = Integer.valueOf(bfr.readLine()) ; 
ltp = ltpnum + 1 ; 

for (int i = 0; i<ltpnum ; i++) { 

lcolor[i] = Integer.valueOf(bfr.readLine()) ; 
lx1[i] = Integer.valueOf(bfr.readLine()) ; 
ly1[i] = Integer.valueOf(bfr.readLine()) ; 
lx2[i] = Integer.valueOf(bfr.readLine()) ; 
ly2[i] = Integer.valueOf(bfr.readLine()) ; 
} 

//读圆的数据 
int otpnum = Integer.valueOf(bfr.readLine()) ; 
otp = otpnum + 1 ; 

for (int i = 0; i<otpnum; i++) { 

ocolor[i] = Integer.valueOf(bfr.readLine()) ; 
ox1[i] = Integer.valueOf(bfr.readLine()) ; 
oy1[i] = Integer.valueOf(bfr.readLine()) ; 
ox2[i] = Integer.valueOf(bfr.readLine()) ; 
oy2[i] = Integer.valueOf(bfr.readLine()) ; 
} 

//读矩形的数据 
int rtpnum = Integer.valueOf(bfr.readLine()) ; 
rtp = rtpnum + 1 ; 

for (int i = 0; i<rtpnum; i++) { 

rcolor[i] = Integer.valueOf(bfr.readLine()) ; 
rx1[i] = Integer.valueOf(bfr.readLine()) ; 
ry1[i] = Integer.valueOf(bfr.readLine()) ; 
rx2[i] = Integer.valueOf(bfr.readLine()) ; 
ry2[i] = Integer.valueOf(bfr.readLine()) ; 
} 

//读实心圆的数据 
int fotpnum = Integer.valueOf(bfr.readLine()) ; 
fotp = fotpnum + 1 ; 

for (int i = 0; i<fotpnum; i++) { 

focolor[i] = Integer.valueOf(bfr.readLine()) ; 
fox1[i] = Integer.valueOf(bfr.readLine()) ; 
foy1[i] = Integer.valueOf(bfr.readLine()) ; 
fox2[i] = Integer.valueOf(bfr.readLine()) ; 
foy2[i] = Integer.valueOf(bfr.readLine()) ; 
}  

//读实心矩形的数据 
int frtpnum = Integer.valueOf(bfr.readLine()) ; 
frtp = frtpnum + 1 ; 

for (int i = 0; i<frtpnum; i++) { 

frcolor[i] = Integer.valueOf(bfr.readLine()) ; 
frx1[i] = Integer.valueOf(bfr.readLine()) ; 
fry1[i] = Integer.valueOf(bfr.readLine()) ; 
frx2[i] = Integer.valueOf(bfr.readLine()) ; 
fry2[i] = Integer.valueOf(bfr.readLine()) ; 
} 


this.repaint() ; 
} 
 catch (Exception ex) { 
}}}