FreeDrawApplet

FreeDrawApplet - myVertex.setY((int)(Math.random() *...

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import javax.swing.*; import java.awt.event.*; import java.applet.*; import java.awt.*; i public class FreeDrawApplet extends JApplet implements MouseMotionListener { //instance variables ColorCircle[] myGraph; final int NUM_CIRCLES = 7; final int WIDTH = 400; final int HEIGHT = 400; public class ColorCircle { private int x; private int y; public void setX(int iNewX) { x = iNewX; } public void setY(int iNewY) { y = iNewY; } public void paint (Graphics g) { g.fillOval(x - 10, y - 10, 20, 20); } public boolean selected(int iXcoord, int iYcoord) { return true; else return false; } } public void init () { addMouseMotionListener(this); myGraph = new ColorCircle[NUM_CIRCLES]; for (int i = 0; i < NUM_CIRCLES; i++) { ColorCircle myVertex = new ColorCircle(); myVertex.setX((int)(Math.random() * (WIDTH-50)));
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Unformatted text preview: myVertex.setY((int)(Math.random() * (HEIGHT - 100))); myGraph[i] = myVertex; } JOptionPane.showMessageDialog(null, &quot;Try to drag any one of the colored circles &quot;, &quot;Information&quot;, JOptionPane.PLAIN_MESSAGE ); } public void paint(Graphics g) { Color myColor = {Color.black, Color.red, Color.blue, Color.green, Color.cyan, Color.orange, Color.yellow}; if (NUM_CIRCLES &gt; 0) for (int i = 0; i &lt; NUM_CIRCLES; i++) { g.setColor(myColor[i]); myGraph[i].paint(g); } } public void mouseDragged(MouseEvent event) { int iX = event.getX(); int iY = event.getY(); for (int i = 0; i &lt; NUM_CIRCLES; i++) if (myGraph[i].selected(iX, iY)) { myGraph[i].setX(iX); myGraph[i].setY(iY); break; } repaint(); } public void mouseMoved(MouseEvent p1) { } }...
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This note was uploaded on 06/17/2011 for the course COMP 2301 taught by Professor Staff during the Spring '10 term at Kennesaw.

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FreeDrawApplet - myVertex.setY((int)(Math.random() *...

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