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java可视化画板代码,java画板程序设计源代码
求Java做的共享画板代码
function table1(stat_array,table_left,table_top,all_width,all_height,table_title,X_unit,Y_unit)
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dim bg_color(10)
bg_color(1)="#ff1919"
bg_color(2)="#ffff19"
bg_color(3)="#1919ff"
bg_color(4)="#19ff19"
bg_color(5)="#fc0"
bg_color(6)="#3cc"
bg_color(7)="#ff19ff"
bg_color(8)="#993300"
bg_color(9)="#f60"
bg_color(10)="#ff8c19"
if X_unit "" then
X_unit = X_unit
end if
if Y_unit "" then
Y_unit = Y_unit
end if
num1 = ubound(stat_array,1)
line_temp=split(stat_array(0,1),",")
num2 = ubound(line_temp,1)+1
dim line_code
redim line_code(num1,num2)
for j=1 to num2
line_code(0,j) = line_temp(j-1)
next
for i=1 to num1
line_temp = split(stat_array(i,1),",")
line_code(i,0) = stat_array(i,2)
for j=1 to num2
line_code(i,j) = cdbl(line_temp(j-1))
next
next
value_Max=0
for i=1 to num1
for j=1 to num2
if value_Maxline_code(i,j) then value_Max=line_code(i,j)
next
next
value_Max = cint(value_Max)
value_Max_str =cstr(value_Max)
if value_Max9 then
temp=mid(value_Max_str,2,1)
if temp4 then
temp2=(int(value_Max/(10^(len(value_Max_str)-1)))+1)*10^(len(value_Max_str)-1)
else
temp2=(int(value_Max/(10^(len(value_Max_str)-1)))+0.5)*10^(len(value_Max_str)-1)
end if
else
if value_Max4 then temp2=10 else temp2=5
end if
item_hight = temp2/5
item_width = 20000/(num2-1)
response.Write "v:rect id='background' style='position:absolute;left:"table_left"px;top:"table_top"px;WIDTH:"all_width"px;HEIGHT:"all_height"px;' fillcolor='#EFEFEF' strokecolor='gray'"
response.Write " v:shadow on='t' type='single' color='silver' offset='4pt,4pt'/"
response.Write "/v:rect"
response.Write "v:group ID='table' style='position:absolute;left:"table_left"px;top:"table_top"px;WIDTH:"all_width"px;HEIGHT:"all_height"px;' coordsize = '27500,12800'"
response.Write " v:Rect style='position:relative;left:1500;top:200;width:23000;height:800'filled='false' stroked='f'"
response.Write " v:TextBox inset='0pt,0pt,0pt,0pt'"
response.Write " table width='100%' border='0' align='center' cellspacing='0'"
response.Write " tr"
response.Write " td align='center' valign='middle'div style='font-size:15pt; font-family:黑体;'B"table_title"/B/div/td"
response.Write " /tr"
response.Write " /table"
response.Write " /v:TextBox"
response.Write " /v:Rect "
response.Write " v:rect id='back' style='position:relative;left:1700;top:1200;width:20500; height:10500;' fillcolor='#9cf' strokecolor='#DFDFDF'"
response.Write " v:fill rotate='t' angle='-45' focus='100%' type='gradient'/"
response.Write " /v:rect"
response.Write " v:rect id='back2' style='position:relative;left:23000;top:1200;width:4000; height:"(10500)";' fillcolor='#9cf' stroked='t' strokecolor='#0099ff'"
response.Write " v:fill rotate='t' angle='-175' focus='100%' type='gradient'/"
response.Write " v:shadow on='t' type='single' color='silver' offset='3pt,3pt'/"
response.Write " /v:rect"
for i=1 to num1
if i=1 then
displaystr=""
else
displaystr="none"
end if
response.Write " div style='cursor:hand;' onmouseover='moveon(rec"i",line_"i")' onmouseout='moveout(rec"i",line_"i","i")' onclick='clickit("i")'"
response.Write " v:Rect id='rec"i"' style='position:relative;left:23100;top:"(i-1)*10200/10+1450";width:3800;height:800;display:"displaystr";' fillcolor='#efefef' strokecolor='"bg_color(i)"'"
response.Write " v:fill opacity='.6' color2='fill darken(118)' o:opacity2='.6' rotate='t' method='linear sigma' focus='100%' type='gradient'/"
response.Write " /v:Rect"
response.Write " v:Rect style='position:relative;left:23200;top:"(i-1)*10200/10+1500";width:600;height:700' fillcolor='"bg_color(i)"' stroked='f'/"
response.Write " v:Rect style='position:relative;left:24000;top:"(i-1)*10200/10+1500";width:3400;height:700' filled='f' stroked='f'"
response.Write " v:TextBox inset='0pt,4pt,0pt,0pt' style='font-size:9pt;'div align='left'"stat_array(i,2)"/div/v:TextBox"
response.Write " /v:Rect "
response.Write " /div "
next
response.Write " v:line ID='X' from='1700,11700' to='22700,11700' style='z-index:2' strokecolor='#000000' strokeWeight=1ptv:stroke EndArrow='Classic'//v:line"
response.Write " v:line ID='Y' from='1700,900' to='1700,11700' style='z-index:2' strokecolor='#000000' strokeWeight=1ptv:stroke StartArrow='Classic'//v:line"
response.Write " v:Rect style='position:relative;left:100;top:700;width:1500;height:500' filled='false' stroked='false'"
response.Write " v:TextBox inset='0pt,0pt,0pt,0pt' style='font-size:9pt;'div align='right'"Y_unit"/div/v:TextBox"
response.Write " /v:Rect "
response.Write " v:Rect style='position:relative;left:22200;top:11900;width:2000;height:500' filled='false' stroked='false'"
response.Write " v:TextBox inset='0pt,0pt,0pt,0pt' style='font-size:9pt;'div align='left'"X_unit"/div/v:TextBox"
response.Write " /v:Rect "
for i=0 to 4
response.Write " v:line from='1300,"i*2000+1700"' to='1700,"i*2000+1700"' style='z-index:2' strokecolor='#000000'/v:line"
response.Write " v:line from='1700,"i*2000+1700"' to='2200,"i*2000+1200"' style='z-index:2' strokecolor='#0099FF'/v:line"
response.Write " v:line from='2200,"i*2000+1200"' to='22200,"i*2000+1200"' style='z-index:2' strokecolor='#0099FF'/v:line"
response.Write " v:line from='2200,"i*2000+2200"' to='22200,"i*2000+2200"' style='z-index:2' strokecolor='#0099FF'"
response.Write " v:stroke dashstyle='Dot'/"
response.Write " /v:line"
response.Write " v:Rect style='position:relative;left:100;top:"i*2000+1250";width:1500;height:500' filled='false' stroked='false'"
response.Write " v:TextBox inset='0pt,0pt,0pt,0pt' style='font-size:9pt;'div align='right'"item_hight*(5-i)"/div/v:TextBox"
response.Write " /v:Rect "
next
response.Write " v:line from='2200,11200' to='22200,11200' style='z-index:2' strokecolor='#0099FF'/v:line"
response.Write " v:line from='2200,1200' to='2200,11200' style='z-index:2' strokecolor='#0099FF'/v:line"
response.Write " v:line from='1700,11700' to='2200,11200' style='z-index:2' strokecolor='#0099FF'/v:line"
for j=0 to num2-1
response.Write " v:line from='"j*item_width+1700",11700' to='"j*item_width+1700",12000' style='z-index:2' strokecolor='#000000'/v:line"
response.Write " v:line from='"j*item_width+1700",11700' to='"j*item_width+2200",11200' style='z-index:2' strokecolor='#0099FF'v:stroke dashstyle='ShortDot'//v:line"
response.Write " v:line from='"j*item_width+2200",1200' to='"j*item_width+2200",11200' style='z-index:2' strokecolor='#0099FF'v:stroke dashstyle='ShortDot'//v:line"
response.Write " v:Rect style='position:relative;left:"j*item_width+1700-item_width/2";top:12100;width:"item_width";height:500' filled='false' stroked='false'"
response.Write " v:TextBox inset='0pt,0pt,0pt,0pt' style='font-size:9pt;'div align='center'"line_code(0,j+1)"/div/v:TextBox"
response.Write " /v:Rect "
next
for i=1 to num1
if i=1 then
displaystr=""
else
displaystr="none"
end if
response.Write " div id='line_"i"' style='display:"displaystr";'"
for j=0 to num2-2
this_hight1 = cint(line_code(i,j+1)/(5*item_hight)*10000)
this_hight2 = cint(line_code(i,j+2)/(5*item_hight)*10000)
response.Write " v:line from='"j*item_width+1850","(10000-this_hight1+1550)"' to='"(j+1)*item_width+1850","(10000-this_hight2+1550)"'style='z-index:"i*10";' strokeweight='0.1pt' strokecolor='"bg_color(i)"'"
response.Write " o:extrusion v:ext='view' backdepth='12pt' on='t' lightposition='-50000,-50000' lightposition2='50000'/"
response.Write " /v:line"
next
response.Write " /div"
next
response.Write "/v:group"
end function
%
html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"
meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /
head
title/title
STYLE
v\:* { Behavior: url(#default#VML) }
o\:* { behavior: url(#default#VML) }
/STYLE
SCRIPT LANGUAGE="JavaScript"
!--
var showit = new Array(10);
function moveon(iteam,lineit){
temp=eval(iteam)
templine=eval(lineit)
if(showit[1]){
rec1.style.display = "";
line_1.style.display = "";
}else{
rec1.style.display = "none";
line_1.style.display = "none";
}
temp.style.display = "";
templine.style.display = "";
}
function moveout(iteam,lineit,i){
temp=eval(iteam)
templine=eval(lineit)
if (showit[i]){
temp.style.display = "";
templine.style.display = "";
}else{
temp.style.display = "none";
templine.style.display = "none";
}
}
function clickit(i){
if (showit[i]){
showit[i]=false
}else{
showit[i]=true
}
}
--
/script
/head
body
%
dim total(10,2)
total(0,1)="1月,2月,3月,4月,5月,6月,7月,8月,9月,10月,11月,12月"
total(1,1)="200,158,982,0,369,100,595,895,652,25,245,951"
total(2,1)="984,58,495,36,158,486,952,258,653,415,485,14"
total(3,1)="850,988,958,145,369,745,265,158,856,145,425,352"
total(4,1)="600,525,235,485,258,265,158,365,35,148,658,475"
total(5,1)="62,525,635,215,0,465,258,305,66,547,54,148"
total(6,1)="560,625,645,329,158,665,358,95,120,358,42,253"
total(7,1)="950,725,635,435,258,865,458,955,152,845,425,421"
total(8,1)="600,825,155,455,458,265,558,365,352,245,853,122"
total(9,1)="360,925,215,545,658,465,658,845,400,421,541,125"
total(10,1)="50,225,355,655,858,665,758,35,584,214,54,651"
total(1,2)="项目1"
total(2,2)="项目2"
total(3,2)="项目3"
total(4,2)="项目4"
total(5,2)="项目5"
total(6,2)="项目6"
total(7,2)="项目7"
total(8,2)="项目8"
total(9,2)="项目9"
total(10,2)="项目10"
call table1(total,50,50,700,350,"曲 线 统 计 图","时间","元")
%
/body
/html
用Java实现画图板功能的程序，请问如何编写一个绘制三角形的程序段
class Triangle extends drawings//空心三角形类
{
void draw(Graphics2D g2d)
{g2d.setPaint(new Color(R,G,B));
g2d.setStroke(new BasicStroke(stroke,
BasicStroke.CAP_ROUND,BasicStroke.JOIN_BEVEL));
g2d.drawLine((int)((x1+x2)/2),Math.min(y1,y2),Math.max(x1,x2),Math.max(y1,y2));
g2d.drawLine(Math.max(x1,x2),Math.max(y1,y2),Math.min(x1,x2),Math.max(y1,y2));
g2d.drawLine(Math.min(x1,x2),Math.max(y1,y2),(int)((x1+x2)/2),Math.min(y1,y2));
}
}
以上是通过绘制三条直线作为三角形的三条边来绘制三角形.
class fillTriangle extends drawings//实心三角形
{
void draw(Graphics2D g2d)
{g2d.setPaint(new Color(R,G,B));
g2d.setStroke(new BasicStroke(stroke));
int mx=(int)((x1+x2)/2);
int[] x={mx,Math.max(x1,x2),Math.min(x1,x2)};
int[] y={Math.min(y1,y2),Math.max(y1,y2),Math.max(y1,y2)};
g2d.fillPolygon(x,y,3);
}
}
以上是用填充多边形的方式填充一个三角形,如果把最后的:g2d.fillPolygon(x,y,3)改为g2d.drawPolygon(x,y,3); 则是以绘制多边形的方式绘制空心三角形.
这里说明一下:因为(x1,y1,x2,y2)只能确定一个矩形区域,即鼠标拉动的起点和终点确定的矩形区域所以可以有多种方式确定三角形的三个顶点,我这个用的三个顶点是:
点1( (x1+x2)/2, min(y) ) 点2( max(x),max(y) ) 点3( min(x),max(y) )
你的补充内容太多了,没心情看啊,太累了
GUI画图板（绘图板）设计，用Java编写程序代码！！谢谢！！
只有矩形有圆形能移动，其它实现起来麻烦点，办法有的只是代码太多。
画圆弧改成了画曲线，圆弧稍麻烦，当然方法是很简单的，你可以自己思考一下。
双击13个颜色中的任意一个都会弹出颜色选择器。
有保存与打开功能。扩展名请用 .jdr
基本满足条件，细节可能不是很好，另，代码比较乱，怕不好看懂咯，呼呼。
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;
public class JDraw {
public static void main(String[] args) {
JFrame f=new JFrame();
f.setDefaultCloseOperation(3);
f.setSize(880,600);
f.setLocationRelativeTo(null);
f.getContentPane().add(M.c);
f.getContentPane().add(M.m,"South");
f.setVisible(true);
}
}
class CVS extends Component implements ComponentListener,MouseListener,MouseMotionListener{
public void componentHidden(ComponentEvent e) {}
public void componentMoved(ComponentEvent e) {}
public void componentResized(ComponentEvent e) {resized();}
public void componentShown(ComponentEvent e) {}
private void resized() {
int w=this.getWidth();
int h=this.getHeight();
tbuff=new BufferedImage(w,h,3);
makeBuff(w,h);
}
private void makeBuff(int w,int h) {
Graphics g = tbuff.getGraphics();
g.drawImage(buff,0,0,null);
g.dispose();
buff=new BufferedImage(w,h,3);
g=buff.getGraphics();
g.drawImage(tbuff,0,0,null);
g.dispose();
}
BufferedImage buff,tbuff;
CVS(){
this.addComponentListener(this);
this.addMouseListener(this);
this.addMouseMotionListener(this);
buff=new BufferedImage(1,1,3);
}
public void paint(Graphics gr){
Graphics2D g = buff.createGraphics();
g.setBackground(new Color(0xff000000,true));
g.clearRect(0,0,getWidth(),getHeight());
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
M.sa.drawAll(g);
if(M.ts!=null)
M.ts.draw(g);
g.dispose();
gr.drawImage(buff,0,0,this);
gr.dispose();
}
public void mouseClicked(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mousePressed(MouseEvent e) {
M.mp(e.getPoint());
}
public void mouseReleased(MouseEvent e) {
M.mr(e.getPoint());
}
public void mouseDragged(MouseEvent e) {
M.md(e.getPoint());
}
public void mouseMoved(MouseEvent e) {}
}
class Menu extends JComponent implements MouseListener,ActionListener{
JComboBox sbox,method;
CLabel[] cl;
JCheckBox fillC,drawB;
JRadioButton fc,bc;
ButtonGroup bg;
JButton clear,up,down,save,load;
Menu(){
this.setLayout(new FlowLayout());
method=new JComboBox(new Object[]{"draw","move","erase",});
add(method);
sbox=new JComboBox(new Object[]{"Pt","Ln","Rect","Cir","Arc",});
add(sbox);
cl=new CLabel[13];
for(int i=0; icl.length; i++){
cl[i]=new CLabel();
cl[i].addMouseListener(this);
add(cl[i]);
}
fc=new JRadioButton("fc",true);
bc=new JRadioButton("bc");
bg=new ButtonGroup();
bg.add(fc);bg.add(bc);
add(fc);add(bc);
fc.setOpaque(true);
bc.setOpaque(true);
fc.setBackground(Color.white);
bc.setBackground(Color.blue);
fillC=new JCheckBox("Fill",true);
drawB=new JCheckBox("Draw",true);
fillC.addActionListener(this);
drawB.addActionListener(this);
add(fillC);add(drawB);
clear=new JButton("clear");
clear.addActionListener(this);
add(clear);
up=new JButton("zUp");
up.addActionListener(this);
add(up);
down=new JButton("zDown");
down.addActionListener(this);
add(down);
save=new JButton("Save");
save.addActionListener(this);
add(save);
load=new JButton("Load");
load.addActionListener(this);
add(load);
}
public void mouseClicked(MouseEvent e) {
JLabel l=(JLabel)e.getSource();
if(e.getClickCount()==2){
Color sc=JColorChooser.showDialog(null, "Color chooser", l.getBackground());
l.setBackground(sc);
mousePressed(e);
}
}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mousePressed(MouseEvent e) {
Color c=((JLabel)e.getSource()).getBackground();
if(fc.isSelected())
fc.setBackground(c);
else if(bc.isSelected())
bc.setBackground(c);
M.cp();
}
public void mouseReleased(MouseEvent e) {}
public void actionPerformed(ActionEvent e) {
if(e.getSource()==clear)M.clear();
else if(e.getSource()==up)M.up();
else if(e.getSource()==down)M.down();
else if(e.getSource()==save)M.save();
else if(e.getSource()==load)M.load();
else if(e.getSource()==fillC||e.getSource()==drawB)M.cp();
}
}
class CLabel extends JLabel{
static Color[] cs={Color.red,Color.orange,Color.yellow,Color.green,Color.cyan,
Color.blue,Color.magenta,Color.magenta.brighter(),
Color.white,Color.black,Color.gray,Color.LIGHT_GRAY,Color.DARK_GRAY,};
static int i;
CLabel(){
this.setOpaque(true);
this.setBackground(cs[i++]);
this.setBorder(BorderFactory.createLineBorder(Color.black));
this.setPreferredSize(new Dimension(10,20));
}
}
class M{
static JFileChooser jfc=new JFileChooser();
static Menu m=new Menu();
static CVS c=new CVS();
static SA sa=new SA();
static S ts=null,selected=null;
static Color fc,bc;
static void clear(){
sa.ss.clear();
c.repaint();
}
public static void cp() {
System.out.println(selected);
if(selected!=null){
selected.fillColor=m.fc.getBackground();
selected.borderColor=m.bc.getBackground();
selected.fc=m.fillC.isSelected();
selected.db=m.drawB.isSelected();
c.repaint();
}
}
public static void up() {
if(selected!=null){
sa.upZ(selected);
c.repaint();
}
}
public static void down(){
if(selected!=null){
sa.downZ(selected);
c.repaint();
}
}
static{
jfc.setFileFilter(new FileNameExtensionFilter("JDraw file (*.jdraw,*.jdr)","jdr","jdraw"));
}
static void save(){
int x=jfc.showSaveDialog(c);
if(x==JFileChooser.APPROVE_OPTION){
File f = jfc.getSelectedFile();
try{
ObjectOutputStream oos=new ObjectOutputStream(new FileOutputStream(f));
oos.writeObject(sa);
oos.flush();
oos.close();
}catch(Exception e){}
}
}
static void load(){
int x=jfc.showOpenDialog(c);
if(x==JFileChooser.APPROVE_OPTION){
File f = jfc.getSelectedFile();
try{
ObjectInputStream oos=new ObjectInputStream(new FileInputStream(f));
Object r=oos.readObject();
if(r!=null){
sa=(SA)r;
c.repaint();
}
oos.close();
}catch(Exception e){e.printStackTrace();}
}
}
static int mx,my,tx,ty,ox,oy;
static int pc=0,pmax;
static int sm;
static boolean ne=true;
static int mid;
static void mp(Point p){
mid=m.method.getSelectedIndex();
if(mid==0){
if(ne){
mx=p.x;my=p.y;
pc=0;
sm=m.sbox.getSelectedIndex();
pmax=sm==4?2:1;
ne=false;
}
++pc;
}
else if(mid==1){
checkSel(p);
mx=p.x;my=p.y;
}
else if(mid==2){
checkSel(p);
if(selected!=null){
sa.ss.remove(selected);
c.repaint();
}
}
}
private static void checkSel(Point p) {
selected=null;
for(int i=sa.ss.size();i0; i--)
if(sa.ss.get(i-1).shape.contains(p)){
selected=sa.ss.get(i-1);break;
}
sa.select(selected);
c.repaint();
}
static void mt(){
Shape s=null;
int cx,cy,cw,ch;
switch(sm){
case 0:
case 2:
cx=Math.min(mx,tx);
cy=Math.min(my,ty);
cw=Math.abs(mx-tx);
ch=Math.abs(my-ty);
if(sm==0)
s=new Ellipse2D.Double(cx,cy,cw,ch);
else
s=new Rectangle(cx,cy,cw,ch);
break;
case 1:
s=new Line2D.Float(mx,my,tx,ty);
break;
case 3:
cw=Math.abs(mx-tx);
ch=Math.abs(my-ty);
int cd=(int)Math.sqrt(Math.pow(mx-tx,2)+Math.pow(my-ty,2))*2;
cx=mx-cd/2;
cy=my-cd/2;
s=new Ellipse2D.Double(cx,cy,cd,cd);
break;
case 4:
Path2D p=new Path2D.Double();
p.moveTo(mx,my);
if(pc==1){
p.lineTo(tx, ty);
}
else{
p.quadTo(ox,oy,tx,ty);
}
s=p;
break;
}
ts=new S(s,m.fc.getBackground(),m.bc.getBackground(),m.fillC.isSelected(),m.drawB.isSelected(),null);
c.repaint();
}
static void md(Point p){
if(mid==0){
if(!sa.ss.isEmpty()){
sa.ss.get(sa.ss.size()-1).sel=false;
}
if(pc1){
ox=p.x;oy=p.y;
}
else{
tx=p.x;ty=p.y;
}
mt();
}
else if(mid==1){
if(selected!=null){
moveTo(selected,p);
c.repaint();
}
}
else if(mid==2){
checkSel(p);
if(selected!=null){
sa.ss.remove(selected);
c.repaint();
}
}
}
static void moveTo(S s, Point p) {
if(s.shape instanceof Rectangle){
Rectangle r=(Rectangle)s.shape;
r.setLocation(r.x+p.x-mx,r.y+p.y-my);
mx=p.x;my=p.y;
}
else if(s.shape instanceof Ellipse2D){
Ellipse2D e=(Ellipse2D)s.shape;
e.setFrame(e.getX()+p.x-mx,e.getY()+p.y-my,e.getWidth(),e.getHeight());
mx=p.x;my=p.y;
}
}
static void mr(Point p) {
if(pc==pmax){
pc=0;
ne=true;
sa.add(ts);
selected=ts;
ts=null;
}
}
}
class S implements Serializable{
boolean fc,db,sel=true;
Shape shape;
Color fillColor,borderColor;
Stroke stroke;
static Stroke bstroke=new MyBasicStroke();
static Stroke selectStroke=new BasicStroke(1,BasicStroke.CAP_BUTT,BasicStroke.JOIN_MITER,1,new float[]{5,2},1);
S(Shape s,Color c,Color b,boolean f,boolean d,Stroke k){
this.shape=s;this.fillColor=c;this.borderColor=b;this.fc=f;this.db=d;this.stroke=k==null?bstroke:k;
}
void draw(Graphics2D g){
if(fc){
g.setColor(fillColor);
g.fill(shape);
}
if(db){
g.setColor(borderColor);
g.setStroke(stroke);
g.draw(shape);
}
if(sel){
g.setColor(Color.green);
g.setStroke(selectStroke);
g.draw(shape.getBounds());
}
}
}
class MyBasicStroke extends BasicStroke implements Serializable{}
class SA implements Serializable{
ArrayListS ss=new ArrayListS();
void add(S s){
if(s!=null){
for(S sx:ss)
sx.sel=false;
ss.add(s);
}
}
S remove(int i){
return ss.remove(i);
}
void remove(S s){
ss.remove(s);
}
void upZ(S s){
indexZ(s,1);
}
void downZ(S s){
indexZ(s,-1);
}
void indexZ(S s, int i) {
int si=ss.indexOf(s);
if(si+i0||si+iss.size()-1)return;
swap(s,ss.get(si+i));
}
void swap(S a,S b){
int ai=ss.indexOf(a);
int bi=ss.indexOf(b);
ss.set(ai,b);
ss.set(bi,a);
}
void select(S s){
for(S x:ss)
x.sel=false;
if(s!=null)
s.sel=true;
}
void drawAll(Graphics2D g){
for(S s:ss)
s.draw(g);
}
}
求一个简单的java画板程序 800行这样的
看看下面的代码，新建类T，把代码拷进去便可运行。
有运行截图：
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.awt.geom.*;
import java.io.*;
@SuppressWarnings({"serial","unused"})
class Point implements Serializable
{
int x,y;
Color col;
int tool;
int boarder;
Point(int x, int y, Color col, int tool, int boarder)
{
this.x = x;
this.y = y;
this.col = col;
this.tool = tool;
this.boarder = boarder;
}
}
@SuppressWarnings({"serial","unused"})
class paintboard extends Frame implements ActionListener,MouseMotionListener,MouseListener,ItemListener
{
int x = -1, y = -1;
int con = 1;//画笔大小
int Econ = 5;//橡皮大小
int toolFlag = 0;//toolFlag:工具标记
//toolFlag工具对应表：
//（0--画笔）；（1--橡皮）；（2--清除）；
//（3--直线）；（4--圆）；（5--矩形）；
Color c = new Color(0,0,0); //画笔颜色
BasicStroke size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);//画笔粗细
Point cutflag = new Point(-1, -1, c, 6, con);//截断标志
@SuppressWarnings("unchecked")
Vector paintInfo = null;//点信息向量组
int n = 1;
FileInputStream picIn = null;
FileOutputStream picOut = null;
ObjectInputStream VIn = null;
ObjectOutputStream VOut = null;
// *工具面板--画笔，直线，圆，矩形，多边形,橡皮，清除*/
Panel toolPanel;
Button eraser, drLine,drCircle,drRect;
Button clear ,pen;
Choice ColChoice,SizeChoice,EraserChoice;
Button colchooser;
Label 颜色,大小B,大小E;
//保存功能
//Button openPic,savePic;
FileDialog openPicture,savePicture;
@SuppressWarnings("unchecked")
paintboard(String s)
{
super(s);
addMouseMotionListener(this);
addMouseListener(this);
paintInfo = new Vector();
/*各工具按钮及选择项*/
//颜色选择
ColChoice = new Choice();
ColChoice.add("black");
ColChoice.add("red");
ColChoice.add("blue");
ColChoice.add("green");
ColChoice.addItemListener(this);
//画笔大小选择
SizeChoice = new Choice();
SizeChoice.add("1");
SizeChoice.add("3");
SizeChoice.add("5");
SizeChoice.add("7");
SizeChoice.add("9");
SizeChoice.addItemListener(this);
//橡皮大小选择
EraserChoice = new Choice();
EraserChoice.add("5");
EraserChoice.add("9");
EraserChoice.add("13");
EraserChoice.add("17");
EraserChoice.addItemListener(this);
////////////////////////////////////////////////////
toolPanel = new Panel();
clear = new Button("清除");
eraser = new Button("橡皮");
pen = new Button("画笔");
drLine = new Button("画直线");
drCircle = new Button("画圆形");
drRect = new Button("画矩形");
colchooser = new Button("显示调色板");
clear.setBackground(Color.GREEN);
drRect.setBackground(Color.GREEN);
pen.setBackground(Color.GREEN);
eraser.setBackground(Color.GREEN);
drLine.setBackground(Color.GREEN);
drCircle.setBackground(Color.GREEN);
colchooser.setBackground(Color.GREEN);
//各组件事件监听
clear.addActionListener(this);
eraser.addActionListener(this);
pen.addActionListener(this);
drLine.addActionListener(this);
drCircle.addActionListener(this);
drRect.addActionListener(this);
colchooser.addActionListener(this);
颜色 = new Label("画笔颜色",Label.CENTER);
大小B = new Label("画笔大小",Label.CENTER);
大小E = new Label("橡皮大小",Label.CENTER);
颜色.setBackground(Color.gray);
大小B.setBackground(Color.gray);
大小E.setBackground(Color.gray);
//面板添加组件
toolPanel.add(pen);
toolPanel.add(drLine);
toolPanel.add(drCircle);
toolPanel.add(drRect);
toolPanel.add(颜色); toolPanel.add(ColChoice);
toolPanel.add(大小B); toolPanel.add(SizeChoice);
toolPanel.add(colchooser);
toolPanel.add(eraser);
toolPanel.add(大小E); toolPanel.add(EraserChoice);
toolPanel.add(clear);
//工具面板到APPLET面板
add(toolPanel,BorderLayout.NORTH);
setBounds(60,60,900,600); setVisible(true);
validate();
//dialog for save and load
openPicture = new FileDialog(this,"打开图画",FileDialog.LOAD);
openPicture.setVisible(false);
savePicture = new FileDialog(this,"保存图画",FileDialog.SAVE);
savePicture.setVisible(false);
openPicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ openPicture.setVisible(false); }
});
savePicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ savePicture.setVisible(false); }
});
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ System.exit(0);}
});
}
public void paint(Graphics g)
{
Graphics2D g2d = (Graphics2D)g;
Point p1,p2;
n = paintInfo.size();
if(toolFlag==2)
g.clearRect(0,0,getSize().width,getSize().height);//清除
for(int i=1; in ;i++){
p1 = (Point)paintInfo.elementAt(i-1);
p2 = (Point)paintInfo.elementAt(i);
size = new BasicStroke(p1.boarder,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
g2d.setColor(p1.col);
g2d.setStroke(size);
if(p1.tool==p2.tool)
{
switch(p1.tool)
{
case 0://画笔
Line2D line1 = new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line1);
break;
case 1://橡皮
g.clearRect(p1.x, p1.y, p1.boarder, p1.boarder);
break;
case 3://画直线
Line2D line2 = new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line2);
break;
case 4://画圆
Ellipse2D ellipse = new Ellipse2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x) , Math.abs(p2.y-p1.y));
g2d.draw(ellipse);
break;
case 5://画矩形
Rectangle2D rect = new Rectangle2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x) , Math.abs(p2.y-p1.y));
g2d.draw(rect);
break;
case 6://截断，跳过
i=i+1;
break;
default :
}//end switch
}//end if
}//end for
}
public void itemStateChanged(ItemEvent e)
{
if(e.getSource()==ColChoice)//预选颜色
{
String name = ColChoice.getSelectedItem();
if(name=="black")
{c = new Color(0,0,0); }
else if(name=="red")
{c = new Color(255,0,0);}
else if(name=="green")
{c = new Color(0,255,0);}
else if(name=="blue")
{c = new Color(0,0,255);}
}
else if(e.getSource()==SizeChoice)//画笔大小
{
String selected = SizeChoice.getSelectedItem();
if(selected=="1")
{
con = 1;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="3")
{
con = 3;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="5")
{con = 5;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="7")
{con = 7;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="9")
{con = 9;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
}
else if(e.getSource()==EraserChoice)//橡皮大小
{
String Esize = EraserChoice.getSelectedItem();
if(Esize=="5")
{ Econ = 5*2; }
else if(Esize=="9")
{ Econ = 9*2; }
else if(Esize=="13")
{ Econ = 13*2; }
else if(Esize=="17")
{ Econ = 17*3; }
}
}
@SuppressWarnings({"serial","unused", "unchecked"})
public void mouseDragged(MouseEvent e)
{
Point p1 ;
switch(toolFlag){
case 0://画笔
x = (int)e.getX();
y = (int)e.getY();
p1 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p1);
repaint();
break;
case 1://橡皮
x = (int)e.getX();
y = (int)e.getY();
p1 = new Point(x, y, null, toolFlag, Econ);
paintInfo.addElement(p1);
repaint();
break;
default :
}
}
public void mouseMoved(MouseEvent e) {}
public void update(Graphics g)
{
paint(g);
}
@SuppressWarnings("unchecked")
public void mousePressed(MouseEvent e)
{
Point p2;
switch(toolFlag){
case 3://直线
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 4: //圆
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 5: //矩形
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
default :
}
}
@SuppressWarnings("unchecked")
public void mouseReleased(MouseEvent e)
{
Point p3;
switch(toolFlag){
case 0://画笔
paintInfo.addElement(cutflag);
break;
case 1: //eraser
paintInfo.addElement(cutflag);
break;
case 3://直线
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
case 4: //圆
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
case 5: //矩形
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
default:
}
}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mouseClicked(MouseEvent e){}
@SuppressWarnings("unchecked")
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==pen)//画笔
{toolFlag = 0;}
if(e.getSource()==eraser)//橡皮
{toolFlag = 1;}
if(e.getSource()==clear)//清除
{
toolFlag = 2;
paintInfo.removeAllElements();
repaint();
}
if(e.getSource()==drLine)//画线
{toolFlag = 3;}
if(e.getSource()==drCircle)//画圆
{toolFlag = 4;}
if(e.getSource()==drRect)//画矩形
{toolFlag = 5;}
if(e.getSource()==colchooser)//调色板
{
Color newColor = JColorChooser.showDialog(this,"调色板",c);
c = newColor;
}
}
}
//end paintboard
public class T{
public static void main(String args[]){
new paintboard("画图程序"); }
}
JAVA编译简易画图板代码
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.awt.geom.*;
import java.io.*;
class Point implements Serializable
{
int x,y;
Color col;
int tool;
int boarder;
Point(int x, int y, Color col, int tool, int boarder)
{
this.x = x;
this.y = y;
this.col = col;
this.tool = tool;
this.boarder = boarder;
}
}
class paintboard extends Frame implements ActionListener,MouseMotionListener,MouseListener,ItemListener
{
int x = -1, y = -1;
int con = 1;//画笔大小
int Econ = 5;//橡皮大小
int toolFlag = 0;//toolFlag:工具标记
//toolFlag工具对应表：
//（0--画笔）；（1--橡皮）；（2--清除）；
//（3--直线）；（4--圆）；（5--矩形）；
Color c = new Color(0,0,0); //画笔颜色
BasicStroke size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);//画笔粗细
Point cutflag = new Point(-1, -1, c, 6, con);//截断标志
Vector paintInfo = null;//点信息向量组
int n = 1;
FileInputStream picIn = null;
FileOutputStream picOut = null;
ObjectInputStream VIn = null;
ObjectOutputStream VOut = null;
// *工具面板--画笔，直线，圆，矩形，多边形,橡皮，清除*/
Panel toolPanel;
Button eraser, drLine,drCircle,drRect;
Button clear ,pen;
Choice ColChoice,SizeChoice,EraserChoice;
Button colchooser;
Label 颜色,大小B,大小E;
//保存功能
Button openPic,savePic;
FileDialog openPicture,savePicture;
paintboard(String s)
{
super(s);
addMouseMotionListener(this);
addMouseListener(this);
paintInfo = new Vector();
/*各工具按钮及选择项*/
//颜色选择
ColChoice = new Choice();
ColChoice.add("black");
ColChoice.add("red");
ColChoice.add("blue");
ColChoice.add("green");
ColChoice.addItemListener(this);
//画笔大小选择
SizeChoice = new Choice();
SizeChoice.add("1");
SizeChoice.add("3");
SizeChoice.add("5");
SizeChoice.add("7");
SizeChoice.add("9");
SizeChoice.addItemListener(this);
//橡皮大小选择
EraserChoice = new Choice();
EraserChoice.add("5");
EraserChoice.add("9");
EraserChoice.add("13");
EraserChoice.add("17");
EraserChoice.addItemListener(this);
////////////////////////////////////////////////////
toolPanel = new Panel();
clear = new Button("清除");
eraser = new Button("橡皮");
pen = new Button("画笔");
drLine = new Button("画直线");
drCircle = new Button("画圆形");
drRect = new Button("画矩形");
openPic = new Button("打开图画");
savePic = new Button("保存图画");
colchooser = new Button("显示调色板");
//各组件事件监听
clear.addActionListener(this);
eraser.addActionListener(this);
pen.addActionListener(this);
drLine.addActionListener(this);
drCircle.addActionListener(this);
drRect.addActionListener(this);
openPic.addActionListener(this);
savePic.addActionListener(this);
colchooser.addActionListener(this);
颜色 = new Label("画笔颜色",Label.CENTER);
大小B = new Label("画笔大小",Label.CENTER);
大小E = new Label("橡皮大小",Label.CENTER);
//面板添加组件
toolPanel.add(openPic);
toolPanel.add(savePic);
toolPanel.add(pen);
toolPanel.add(drLine);
toolPanel.add(drCircle);
toolPanel.add(drRect);
toolPanel.add(颜色); toolPanel.add(ColChoice);
toolPanel.add(大小B); toolPanel.add(SizeChoice);
toolPanel.add(colchooser);
toolPanel.add(eraser);
toolPanel.add(大小E); toolPanel.add(EraserChoice);
toolPanel.add(clear);
//工具面板到APPLET面板
add(toolPanel,BorderLayout.NORTH);
setBounds(60,60,900,600); setVisible(true);
validate();
//dialog for save and load
openPicture = new FileDialog(this,"打开图画",FileDialog.LOAD);
openPicture.setVisible(false);
savePicture = new FileDialog(this,"保存图画",FileDialog.SAVE);
savePicture.setVisible(false);
openPicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ openPicture.setVisible(false); }
});
savePicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ savePicture.setVisible(false); }
});
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ System.exit(0);}
});
}
public void paint(Graphics g)
{
Graphics2D g2d = (Graphics2D)g;
Point p1,p2;
n = paintInfo.size();
if(toolFlag==2)
g.clearRect(0,0,getSize().width,getSize().height);//清除
for(int i=0; in ;i++){
p1 = (Point)paintInfo.elementAt(i);
p2 = (Point)paintInfo.elementAt(i+1);
size = new BasicStroke(p1.boarder,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
g2d.setColor(p1.col);
g2d.setStroke(size);
if(p1.tool==p2.tool)
{
switch(p1.tool)
{
case 0://画笔
Line2D line1 = new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line1);
break;
case 1://橡皮
g.clearRect(p1.x, p1.y, p1.boarder, p1.boarder);
break;
case 3://画直线
Line2D line2 = new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line2);
break;
case 4://画圆
Ellipse2D ellipse = new Ellipse2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x) , Math.abs(p2.y-p1.y));
g2d.draw(ellipse);
break;
case 5://画矩形
Rectangle2D rect = new Rectangle2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x) , Math.abs(p2.y-p1.y));
g2d.draw(rect);
break;
case 6://截断，跳过
i=i+1;
break;
default :
}//end switch
}//end if
}//end for
}
public void itemStateChanged(ItemEvent e)
{
if(e.getSource()==ColChoice)//预选颜色
{
String name = ColChoice.getSelectedItem();
if(name=="black")
{c = new Color(0,0,0); }
else if(name=="red")
{c = new Color(255,0,0);}
else if(name=="green")
{c = new Color(0,255,0);}
else if(name=="blue")
{c = new Color(0,0,255);}
}
else if(e.getSource()==SizeChoice)//画笔大小
{
String selected = SizeChoice.getSelectedItem();
if(selected=="1")
{
con = 1;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="3")
{
con = 3;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="5")
{con = 5;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="7")
{con = 7;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
else if(selected=="9")
{con = 9;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
}
}
else if(e.getSource()==EraserChoice)//橡皮大小
{
String Esize = EraserChoice.getSelectedItem();
if(Esize=="5")
{ Econ = 5*2; }
else if(Esize=="9")
{ Econ = 9*2; }
else if(Esize=="13")
{ Econ = 13*2; }
else if(Esize=="17")
{ Econ = 17*3; }
}
}
public void mouseDragged(MouseEvent e)
{
Point p1 ;
switch(toolFlag){
case 0://画笔
x = (int)e.getX();
y = (int)e.getY();
p1 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p1);
repaint();
break;
case 1://橡皮
x = (int)e.getX();
y = (int)e.getY();
p1 = new Point(x, y, null, toolFlag, Econ);
paintInfo.addElement(p1);
repaint();
break;
default :
}
}
public void mouseMoved(MouseEvent e) {}
public void update(Graphics g)
{
paint(g);
}
public void mousePressed(MouseEvent e)
{
Point p2;
switch(toolFlag){
case 3://直线
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 4: //圆
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
case 5: //矩形
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;
default :
}
}
public void mouseReleased(MouseEvent e)
{
Point p3;
switch(toolFlag){
case 0://画笔
paintInfo.addElement(cutflag);
break;
case 1: //eraser
paintInfo.addElement(cutflag);
break;
case 3://直线
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
case 4: //圆
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
case 5: //矩形
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;
default:
}
}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mouseClicked(MouseEvent e){}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==pen)//画笔
{toolFlag = 0;}
if(e.getSource()==eraser)//橡皮
{toolFlag = 1;}
if(e.getSource()==clear)//清除
{
toolFlag = 2;
paintInfo.removeAllElements();
repaint();
}
if(e.getSource()==drLine)//画线
{toolFlag = 3;}
if(e.getSource()==drCircle)//画圆
{toolFlag = 4;}
if(e.getSource()==drRect)//画矩形
{toolFlag = 5;}
if(e.getSource()==colchooser)//调色板
{
Color newColor = JColorChooser.showDialog(this,"调色板",c);
c = newColor;
}
if(e.getSource()==openPic)//打开图画
{
openPicture.setVisible(true);
if(openPicture.getFile()!=null)
{
int tempflag;
tempflag = toolFlag;
toolFlag = 2 ;
repaint();
try{
paintInfo.removeAllElements();
File filein = new File(openPicture.getDirectory(),openPicture.getFile());
picIn = new FileInputStream(filein);
VIn = new ObjectInputStream(picIn);
paintInfo = (Vector)VIn.readObject();
VIn.close();
repaint();
toolFlag = tempflag;
}
catch(ClassNotFoundException IOe2)
{
repaint();
toolFlag = tempflag;
System.out.println("can not read object");
}
catch(IOException IOe)
{
repaint();
toolFlag = tempflag;
System.out.println("can not read file");
}
}
}
if(e.getSource()==savePic)//保存图画
{
savePicture.setVisible(true);
try{
File fileout = new File(savePicture.getDirectory(),savePicture.getFile());
picOut = new FileOutputStream(fileout);
VOut = new ObjectOutputStream(picOut);
VOut.writeObject(paintInfo);
VOut.close();
}
catch(IOException IOe)
{
System.out.println("can not write object");
}
}
}
}//end paintboard
public class pb
{
public static void main(String args[])
{ new paintboard("画图程序"); }
}
本文题目：java可视化画板代码,java画板程序设计源代码
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