?? paintpanel.java
字號:
package shiyan3;
import java.awt.*;
import java.awt.event.*;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.ArrayList;
import javax.swing.*;
/**
*
* @author jackxy
*/
public class PaintPanel extends javax.swing.JPanel implements MouseListener,
ActionListener, MouseMotionListener, WindowListener {
JFrame main;
// private int isMOUSEMotion=0;//判斷是否是由鼠標引起重繪
protected final int EDIT_MODE = 1;
protected final int SERVE_MODE = 2;
protected final int PAINT_POINT = 3;
protected final int PAINT_LINE = 4;
protected final int DELETE_POINT = 5;
protected final int MOUSE_PRESS = 10;
protected final int MOUSE_RELEASE = 11;
protected final int MOUSE_MOVE = 12;
private int mode = 1;
private int methed = 4;
private int mouse;
private int selected;
private ArrayList<Point> dots;
private ArrayList<ArrayList<Integer>> lines;
private Map map;
private Image mapImage;
int dot1 = -1;
int dot2 = -1;//
private Map makeMap() {
Map m = new Map();
for (int i = 0; i < dots.size(); i++) {
m.addDot();
}
int x1 = 0;
int x2 = 0;
int y1 = 0;
int y2 = 0;
for (int i = 0; i < lines.size(); i++) {
if(lines.get(i)!=null&&lines.get(i).size()==2){
int dot1 = lines.get(i).get(0);
int dot2 = lines.get(i).get(1);
x1 = dots.get(dot1).x;
x2 = dots.get(dot2).x;
y1 = dots.get(dot1).y;
y2 = dots.get(dot2).y;
m.addLine(lines.get(i).get(0), lines.get(i).get(1), (int) Math.pow(
(x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1),
0.5));
}
else{
lines.remove(i);
}
}
return m;
}
public int getLengthOfLine(ArrayList<Point> line) {
double length = 0;
for (int i = 0; i < line.size() - 1; i++) {
length = length
+ Math
.pow(
((line.get(i).getX()
- line.get(i + 1)
.getX())
*
(line.get(i).getX() - line.get(
i + 1).getX()) + (line.get(
i).getY() - line.get(i + 1).getY())
*
(line.get(i).getY() - line.get(
i + 1).getY())), 0.5);
}
return (int) length;
}
/** Creates new form PaintPanel */
public PaintPanel(JFrame frame) {
main = frame;
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
private void initComponents() {
read();
setBackground(new java.awt.Color(255, 255, 255));
setBorder(javax.swing.BorderFactory
.createLineBorder(new java.awt.Color(0, 0, 255)));
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(layout.createParallelGroup(
javax.swing.GroupLayout.Alignment.LEADING).addGap(0, 398,
Short.MAX_VALUE));
layout.setVerticalGroup(layout.createParallelGroup(
javax.swing.GroupLayout.Alignment.LEADING).addGap(0, 298,
Short.MAX_VALUE));
this.addMouseListener(this);
mapImage = Toolkit.getDefaultToolkit().getImage("map/map.jpg");
}// </editor-fold>
void read() {
try {
FileInputStream fin = new FileInputStream(new File(
"map/pointPosition.jac"));
ObjectInputStream oinput = new ObjectInputStream(fin);
// this.dots=(ArrayList<Dot>)oinput.readObject();
this.dots = (ArrayList<Point>) oinput.readObject();
oinput.close();
fin = new FileInputStream(new File("map/lines.jac"));
oinput = new ObjectInputStream(fin);
lines = (ArrayList<ArrayList<Integer>>) oinput.readObject();
oinput.close();
} catch (FileNotFoundException e) {
System.out.println("File not Found");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
void write() {
System.out.println("write done");
try {
File f = new File("map/pointPosition.jac");
FileOutputStream fou = new FileOutputStream(f);
ObjectOutputStream ooutput = new ObjectOutputStream(fou);
ooutput.writeObject(dots);
ooutput.close();
f = new File("map/lines.jac");
fou = new FileOutputStream(f);
ooutput = new ObjectOutputStream(fou);
ooutput.writeObject(lines);
ooutput.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
void paintDot(Graphics g) {
Point p = getMousePosition();
g.setColor(Color.blue);
if (isExist(p) == -1) {
g.fillOval(p.x - 8, p.y - 8, 16, 16);
if (dots == null) {
dots = new ArrayList<Point>();
}
dots.add(new Point(p.x, p.y));
}
}
void paintLinesStage1(Graphics g) {
g.setColor(Color.green);
Point p = getMousePosition();
ArrayList<Integer> line1;
if (lines == null) {
lines = new ArrayList<ArrayList<Integer>>();
line1 = new ArrayList<Integer>();
lines.add(line1);
} else {
line1 = new ArrayList<Integer>();
lines.add(line1);
}
if (isExist(p) != -1) {
Point i = dots.get(isExist(p));
p.x = i.x;
p.y = i.y;
} else {
paintDot(g);
}
int a = -1;
for (int i = 0; i < dots.size(); i++) {
if (p.x == dots.get(i).x && p.y == dots.get(i).y) {
a = i;
}
}
line1.add(a);
//
//
//
//
// System.out.println(lines.size());
}
void paintLineStage2(Graphics g) {
Point p = getMousePosition();
ArrayList<Integer> line1 = lines.get(lines.size() - 1);
if (isExist(p) != -1) {// 存在點的情況
Point i = dots.get(isExist(p));
p.x = i.x;
p.y = i.y;
if (p.x != dots.get(line1.get(0)).x
|| p.y != dots.get(line1.get(0)).y) {// 不是劃線起點
//的情況
line1.add(isExist(p));
g.drawLine(p.x, p.y, dots.get(line1.get(0)).x, dots.get
(line1
.get(0)).y);
} else {
lines.remove(lines.get(lines.size() - 1));
}
} else {// 不存在點的情況
line1.add(dots.size());
g.drawLine(p.x, p.y, dots.get(line1.get(0)).x, dots.get(line1
.get(0)).y);
paintDot(g);
}
}
void deleteP(Graphics g) {
Point p = getMousePosition();
int index = isExist(p);
if (index != -1) {
dots.remove(index);
for (int i = 0; i < lines.size(); i++) {
if(lines.get(i)!=null&&lines.get(i).size()==2){
if (lines.get(i).get(0) == index
|| lines.get(i).get(1) == index) {
lines.remove(i);
}
if (lines.get(i).get(0) > index) {
int a = lines.get(i).get(0);
lines.get(i).set(0, a - 1);
}
if (lines.get(i).get(1) > index) {
int a = lines.get(i).get(1);
lines.get(i).set(1, a - 1);
}
}}
}
}
int isExist(Point p) {
int a = -1;
if (dots != null) {
for (int i = 0; i < dots.size(); i++) {
if ((p.x - dots.get(i).x) * (p.x - dots.get(i).x)
+ (p.y - dots.get(i).y) * (p.y - dots.get
(i).y) < 64) {
a = i;
break;
}
}
}
return a;
}
private int findNearestPoint(int x, int y) {
int index = -1;
int l = Integer.MAX_VALUE;
for (int i = 0; i < dots.size(); i++) {
int v2 = (int) Math.pow((x - dots.get(i).x) * (x - dots.get(i).x)
+ (y - dots.get(i).y) * (y - dots.get(i).y), 0.5);
System.out.println(v2);
if (v2 < l) {
l = v2;
index = i;
}
}
return index;
}
public void paintpath(Graphics g, ArrayList<Integer> l) {
Graphics2D g2d = (Graphics2D) g;
if (l != null && l.size() > 1)
g2d.setColor(Color.red);
g2d.setStroke(new BasicStroke(5));
for (int i = 1; i < l.size(); i++) {
g2d.drawLine(dots.get(l.get(i - 1)).x, dots.get(l.get(i - 1)).y,
dots.get(l.get(i)).x, dots.get(l.get(i)).y);
}
}
public void paint(Graphics g) {
// 畫出已經有的線條和點
super.paint(g);
Graphics2D g2d = (Graphics2D) g;
if (mapImage != null) {
g2d.drawImage(mapImage, 0, 0, this.getWidth(), this.getHeight(),
this);
}
if (dots != null && mode == EDIT_MODE) {
g2d.setColor(Color.blue);
for (int i = 0; i < dots.size(); i++) {
g2d.fillOval(dots.get(i).x - 5, dots.get(i).y - 5, 10, 10);
}
}
if (lines != null && mode == EDIT_MODE) {
g2d.setColor(Color.green);
for (int i = 0; i < lines.size(); i++) {
if (lines.get(i).size() >= 2) {
for (int j = 1; j < lines.get(i).size(); j++) {
g2d.drawLine(dots.get(lines.get(i).get(j -
1)).x, dots
.get(lines.get(i).get(j -
1)).y, dots.get(lines
.get(i).get(j)).x, dots
.get(lines.get(i).get
(j)).y);
}
} else {
// delete line;
}
}
}
if (mouse != 0) {
switch (mode) {
case SERVE_MODE:
// //serve mode
Point p = getMousePosition();
if (selected == 0 && mouse == MOUSE_PRESS) {
dot1 = findNearestPoint(p.x, p.y);
selected = dot1;
} else if (mouse == MOUSE_RELEASE && selected != 0) {
dot2 = findNearestPoint(p.x, p.y);
paintpath(g, map.getPath(dot1, dot2));
selected = 0;
}
break;
case EDIT_MODE:// /edit mode
switch (methed) {
case PAINT_POINT:
paintDot(g);
break;
case PAINT_LINE:
switch (mouse) {
case MOUSE_PRESS:
paintLinesStage1(g);
break;
case MOUSE_RELEASE:
paintLineStage2(g);
break;
default:
break;
}
break;
case DELETE_POINT:
if (mouse == MOUSE_PRESS) {
deleteP(g);
}
break;
default:
break;
}
break;
default:
break;
}
mouse = 0;
}
}
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
mouse = MOUSE_PRESS;
repaint();
}
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
mouse = MOUSE_RELEASE;
repaint();
}
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (e.getActionCommand().equalsIgnoreCase("edit mode")) {
mode = EDIT_MODE;
} else if (e.getActionCommand().equalsIgnoreCase("serve mode")) {
mode = SERVE_MODE;
map = makeMap();
} else if (e.getActionCommand().equalsIgnoreCase("add")) {
methed = PAINT_LINE;
} else if (e.getActionCommand().equalsIgnoreCase("remove")) {
methed = DELETE_POINT;
}
repaint();
}
public void mouseDragged(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseMoved(MouseEvent e) {
// TODO Auto-generated method stub
}
public void windowActivated(WindowEvent e) {
// TODO Auto-generated method stub
}
public void windowClosed(WindowEvent e) {
// TODO Auto-generated method stub
}
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
write();
System.exit(0);
}
public void windowDeactivated(WindowEvent e) {
// TODO Auto-generated method stub
}
public void windowDeiconified(WindowEvent e) {
// TODO Auto-generated method stub
}
public void windowIconified(WindowEvent e) {
// TODO Auto-generated method stub
}
public void windowOpened(WindowEvent e) {
// TODO Auto-generated method stub
}
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