Kristina Cordova :
My intensions is to be able to move three different shapes in my frame. But I can move only square so far. Any suggestions how I can make program move all my shapes, not just one? I have some methods and classes below
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Ellipse2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MouseMoveScale extends JPanel {
private Rectangle2D.Float myRect = new Rectangle2D.Float(50, 50, 100, 100);
private Ellipse2D.Float myCr = new Ellipse2D.Float(10,10, 100, 100);
private Rectangle2D.Float myTr = new Rectangle2D.Float(50, 50, 50, 50);
MovingAdapter ma = new MovingAdapter();
public MouseMoveScale() {
addMouseMotionListener(ma);
addMouseListener(ma);
addMouseWheelListener(new ScaleHandler());
}
public void paint(Graphics g) {
super.paint(g);
Graphics2D square = (Graphics2D) g;
Graphics2D triangle = (Graphics2D) g;
Graphics2D circle = (Graphics2D) g;
square.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
square.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
square.setColor(new Color(0, 0, 200));
square.fill(myRect);
triangle.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
triangle.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
triangle.setColor(new Color(139, 89, 255));
int xPoints[] = {110,180,30,110};
int yPoints[] = {30,100,100,30};
g.fillPolygon(xPoints, yPoints, 4);
circle.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
circle.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
circle.setColor(new Color(0, 0, 117));
circle.fillOval( 10,10, 100, 100 );
}
class MovingAdapter extends MouseAdapter {
private int x;
private int y;
public void mousePressed(MouseEvent e) {
x = e.getX();
y = e.getY();
}
public void mouseDragged(MouseEvent e) {
int dx = e.getX() - x;
int dy = e.getY() - y;
if (myRect.getBounds2D().contains(x, y)) {
myRect.x += dx;
myRect.y += dy;
repaint();
}
if (myTr.getBounds2D().contains(x, y)) {
myTr.x += dx;
myTr.y += dy;
repaint();
}
if (myCr.getBounds2D().contains(x, y)) {
myCr.x += dx;
myCr.y += dy;
repaint();
}
x += dx;
y += dy;
}
}
class ScaleHandler implements MouseWheelListener {
public void mouseWheelMoved(MouseWheelEvent e) {
int x = e.getX();
int y = e.getY();
if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
if (myRect.getBounds2D().contains(x, y)) {
float amount = e.getWheelRotation() * 5f;
myRect.width += amount;
myRect.height += amount;
repaint();
}
}
}
}
public static void main(String[] args) {
JFrame frame = new JFrame("Shapes World");
MouseMoveScale m = new MouseMoveScale();
m.setDoubleBuffered(true);
frame.add(m);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 300);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
I probably need to create new objects? Or is it enough to fix the problem with if statement?
RR_IL :
I think this is your error
triangle.setColor(new Color(139, 89, 255));
int xPoints[] = {110,180,30,110};
int yPoints[] = {30,100,100,30};
g.fillPolygon(xPoints, yPoints, 4); ---> Notice this.
You are trying to move the rec without changing the xpoints/ypoints you have used.
if (myTr.getBounds2D().contains(x, y)) {
myTr.x += dx; ---> not related to xPoints
myTr.y += dy; ---> not related to yPoints
repaint();
}
You can change - g.fillPolygon for e.x with -
triangle.fill(myCr);
Our result
So now you can move 2 objects.
Guess you like
Origin http://43.154.161.224:23101/article/api/json?id=291777&siteId=1