I created 2 points the one with the positive and the other with half positive, there is a line connecting the two points, if i drag the positive sign(end point) the line extends to any direction that I want, but it does not work for the half positive sign(start point), is there anything I'm doing wrong here is my code.
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
public class Main extends JPanel {
public static void main(String args[]) throws Exception {
JFrame f = new JFrame("Shapes");
f.setSize(600, 600);
f.setLocation(300, 300);
f.setResizable(true);
JPanel p = new JPanel() {
int x2 = 250;
int y2 = 175;
//for line
int x1 = 315;
int y1 = 115;
//Middle Positive Sign
private Shape lineMp = null;
private Shape lineMn = null;
//Border Positive Sign
private Shape lineBp = null;
private Shape lineBn = null;
//Line
private Shape line = null;
{
//Middle positive
lineMn = new Line2D.Double(235,175,265,175);
lineMp = new Line2D.Double(250,160,250,190);
//Border sign
lineBn = new Line2D.Double(300,115,330,115);
lineBp = new Line2D.Double(315,115,315,130);
//Line
line = new Line2D.Double(x1,y1,x2,y2);
MouseAdapter mouseAdapter = new MouseAdapter() {
private Point prevPoint;
@Override
public void mousePressed(MouseEvent e) {
prevPoint = e.getPoint();
System.out.println("Prev Point=" + prevPoint.toString());
repaint();
}
@Override
public void mouseDragged(MouseEvent e) {
int dx = 0;
int dy = 0;
dx = (int) (prevPoint.x - e.getPoint().getX());
dy = (int) (prevPoint.y - e.getPoint().getY());
//Middle Positive sign
Line2D shapeMn = (Line2D) lineMn;
Line2D shapeMp = (Line2D) lineMp;
//Border sign
Line2D shapeBn = (Line2D) lineBn;
Line2D shapeBp = (Line2D) lineBp;
//Line
Line2D shapeline = (Line2D) line;
//Middle Positive sign
int nx1 = (int) (shapeMn.getX1() - dx);
int ny1 = (int) (shapeMn.getY1() - dy);
int nx2 = (int) (shapeMn.getX2() - dx);
int ny2 = (int) (shapeMn.getY2() - dy);
int px1 = (int) (shapeMp.getX1() - dx);
int py1 = (int) (shapeMp.getY1() - dy);
int px2 = (int) (shapeMp.getX2() - dx);
int py2 = (int) (shapeMp.getY2() - dy);
//Border sign
int Bnx1 = (int) (shapeBn.getX1() - dx);
int Bny1 = (int) (shapeBn.getY1() - dy);
int Bnx2 = (int) (shapeBn.getX2() - dx);
int Bny2 = (int) (shapeBn.getY2() - dy);
int Bpx1 = (int) (shapeBp.getX1() - dx);
int Bpy1 = (int) (shapeBp.getY1() - dy);
int Bpx2 = (int) (shapeBp.getX2() - dx);
int Bpy2 = (int) (shapeBp.getY2() - dy);
//Line
int x2 = (int) (shapeline.getX2() - dx);
int y2 = (int) (shapeline.getY2() - dy);
Point startPointMn = new Point(nx1, ny1);
Point endPointMn = new Point(nx2, ny2);
Point startPointMp = new Point(px1, py1);
Point endPointMp = new Point(px2, py2);
Point startPointBn = new Point(Bnx1, Bny1);
Point endPointBn = new Point(Bnx2, Bny2);
Point startPointBp = new Point(Bpx1, Bpy1);
Point endPointBp = new Point(Bpx2, Bpy2);
Point startPoint = new Point(x1, y1);
Point endPoint = new Point(x2, y2);
GeneralPath Mp = new GeneralPath();
Mp.append(lineMn, false);
Mp.append(lineMp, false);
if (Mp.getBounds().contains(prevPoint)) {
shapeline.setLine(startPoint,endPoint);
shapeMn.setLine(startPointMn, endPointMn);
shapeMp.setLine(startPointMp, endPointMp);
prevPoint = e.getPoint();
repaint();
return;
}
GeneralPath Bp = new GeneralPath();
Bp.append(lineBn, false);
Bp.append(lineBp, false);
if (Bp.getBounds().contains(prevPoint)) {
shapeBn.setLine(startPointBn, endPointBn);
shapeBp.setLine(startPointBp, endPointBp);
prevPoint = e.getPoint();
repaint();
return;
}
}
@Override
public void mouseReleased(MouseEvent e) {
repaint();
}
};
addMouseListener(mouseAdapter);
addMouseMotionListener(mouseAdapter);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setPaint(Color.BLUE);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
if (lineMn != null){
g2d.draw(line);
g2d.draw(lineBn);
g2d.draw(lineBp);
g2d.draw(lineMn);
g2d.draw(lineMp);
}
}};
f.add(p);
p.setLayout(null);
f.setVisible(true);
}
}
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
public class Main extends JPanel {
public static void main(String args[]) throws Exception {
JFrame f = new JFrame("Shapes");
f.setSize(600, 600);
f.setLocation(300, 300);
f.setResizable(true);
JPanel p = new JPanel() {
int x2 = 250;
int y2 = 175;
//for line
int x1 = 315;
int y1 = 115;
int ex2 = 315;
int ey2 = 115;
//Middle Positive Sign
private Shape lineMp = null;
private Shape lineMn = null;
//Border Positive Sign
private Shape lineBp = null;
private Shape lineBn = null;
//Line
private Shape line = null;
{
//Middle positive
lineMn = new Line2D.Double(235,175,265,175);
lineMp = new Line2D.Double(250,160,250,190);
//Border sign
lineBn = new Line2D.Double(300,115,330,115);
lineBp = new Line2D.Double(315,115,315,130);
//Line
line = new Line2D.Double(x1,y1,x2,y2);
MouseAdapter mouseAdapter = new MouseAdapter() {
private Point prevPoint;
@Override
public void mousePressed(MouseEvent e) {
prevPoint = e.getPoint();
System.out.println("Prev Point=" + prevPoint.toString());
repaint();
}
@Override
public void mouseDragged(MouseEvent e) {
int dx = 0;
int dy = 0;
dx = (int) (prevPoint.x - e.getPoint().getX());
dy = (int) (prevPoint.y - e.getPoint().getY());
//Middle Positive sign
Line2D shapeMn = (Line2D) lineMn;
Line2D shapeMp = (Line2D) lineMp;
//Border sign
Line2D shapeBn = (Line2D) lineBn;
Line2D shapeBp = (Line2D) lineBp;
//Line
Line2D shapeline = (Line2D) line;
//Middle Positive sign
int nx1 = (int) (shapeMn.getX1() - dx);
int ny1 = (int) (shapeMn.getY1() - dy);
int nx2 = (int) (shapeMn.getX2() - dx);
int ny2 = (int) (shapeMn.getY2() - dy);
int px1 = (int) (shapeMp.getX1() - dx);
int py1 = (int) (shapeMp.getY1() - dy);
int px2 = (int) (shapeMp.getX2() - dx);
int py2 = (int) (shapeMp.getY2() - dy);
//Border sign
int Bnx1 = (int) (shapeBn.getX1() - dx);
int Bny1 = (int) (shapeBn.getY1() - dy);
int Bnx2 = (int) (shapeBn.getX2() - dx);
int Bny2 = (int) (shapeBn.getY2() - dy);
int Bpx1 = (int) (shapeBp.getX1() - dx);
int Bpy1 = (int) (shapeBp.getY1() - dy);
int Bpx2 = (int) (shapeBp.getX2() - dx);
int Bpy2 = (int) (shapeBp.getY2() - dy);
//Line
int x2 = (int) (shapeline.getX2() - dx);
int y2 = (int) (shapeline.getY2() - dy);
int ex1 = (int) (shapeline.getX1() - dx);
int ey1 = (int) (shapeline.getY1() - dy);
Point startPointMn = new Point(nx1, ny1);
Point endPointMn = new Point(nx2, ny2);
Point startPointMp = new Point(px1, py1);
Point endPointMp = new Point(px2, py2);
Point startPointBn = new Point(Bnx1, Bny1);
Point endPointBn = new Point(Bnx2, Bny2);
Point startPointBp = new Point(Bpx1, Bpy1);
Point endPointBp = new Point(Bpx2, Bpy2);
Point startPoint = new Point((int)shapeline.getX1(), (int)shapeline.getY1());
Point endPoint = new Point(x2, y2);
Point estartPoint = new Point(ex1, ey1);
Point eendPoint = new Point((int)shapeline.getX2(), (int)shapeline.getY2());
GeneralPath Mp = new GeneralPath();
Mp.append(lineMn, false);
Mp.append(lineMp, false);
if (Mp.getBounds().contains(prevPoint)) {
shapeline.setLine(startPoint,endPoint);
shapeMn.setLine(startPointMn, endPointMn);
shapeMp.setLine(startPointMp, endPointMp);
prevPoint = e.getPoint();
repaint();
return;
}
GeneralPath Bp = new GeneralPath();
Bp.append(lineBn, false);
Bp.append(lineBp, false);
if (Bp.getBounds().contains(prevPoint)) {
shapeline.setLine(estartPoint, eendPoint);
shapeBn.setLine(startPointBn, endPointBn);
shapeBp.setLine(startPointBp, endPointBp);
prevPoint = e.getPoint();
repaint();
return;
}
}
@Override
public void mouseReleased(MouseEvent e) {
repaint();
}
};
addMouseListener(mouseAdapter);
addMouseMotionListener(mouseAdapter);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setPaint(Color.BLUE);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
if (lineMn != null){
g2d.draw(line);
g2d.draw(lineBn);
g2d.draw(lineBp);
g2d.draw(lineMn);
g2d.draw(lineMp);
}
}};
f.add(p);
p.setLayout(null);
f.setVisible(true);
}
}