JPanel problem
Hi i have written this applet which has 3 JPanels.
colorPanel is at the top and has 4 coloured rectangles, red,green,black and blue representing a color pallet
shapePanel is on the left and has 2 shapes( an oval and a rect)
canvas is to hold my drawing.
The idea is to select a color and a shape and draw that on to my canvas. When a color is selected the black rectangle will change to that color. I have set up individual mouse listeners for each panel but just cant seem to get them interacting with each other.
I know there are probably simpler ways of doing this but its for my course.
Any ideas will be appreciated. Thanks
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JApplet;
import java.awt.BorderLayout;
import java.awt.event.MouseMotionAdapter;
publicclass ColourChooserextends JApplet
{
int startX,startY,height,width;
boolean red, blue, green;
boolean black=true;
boolean rect=true;
boolean oval;
BorderLayout borderLayout1=new BorderLayout();
publicvoid init(){
this.setLayout(borderLayout1);
colorPanel.setBackground(Color.GRAY);
colorPanel.setPreferredSize(new Dimension(50,50));
colorPanel.addMouseListener(new ColourChooser_colorPanel_mouseAdapter(this));
shapePanel.setBackground(Color.GRAY);
shapePanel.setPreferredSize(new Dimension(50,50));
shapePanel.addMouseListener(new ColourChooser_shapePanel_mouseAdapter(this));
canvas.setBackground(Color.WHITE);
canvas.addMouseMotionListener(new
ColourChooser_canvas_mouseMotionAdapter(this));
canvas.addMouseListener(new ColourChooser_canvas_mouseAdapter(this));
this.add(colorPanel, java.awt.BorderLayout.NORTH);
this.add(shapePanel, java.awt.BorderLayout.WEST);
this.add(canvas, java.awt.BorderLayout.CENTER);
}
Panel colorPanel=new Panel(){
publicvoid paint(Graphics g)
{
g.setColor(Color.RED);
g.fillRect(160,10,20,20);
g.setColor(Color.GREEN);
g.fillRect(185,10,20,20);
g.setColor(Color.BLUE);
g.fillRect(210,10,20,20);
g.setColor(Color.BLACK);
g.fillRect(135,10,20,20);
colorChanger(g);
g.fillRect(135,10,20,20);
}
} ;
Panel shapePanel=new Panel(){
publicvoid paint(Graphics g){
g.drawRect(10,40,20,20);
g.drawOval(10,80,20,20);
}
};
Panel canvas=new Panel(){
publicvoid paint(Graphics g){
if (rect){
if (blue){
g.setColor(Color.BLUE);
g.fillRect(startX,startY,height,width);
}elseif (red){
g.setColor(Color.RED);
g.fillRect(startX,startY,height,width);
}elseif (green){
g.setColor(Color.GREEN);
g.fillRect(startX,startY,height,width);
}else{
g.setColor(Color.BLACK);
g.fillRect(startX,startY,height,width);
}
}elseif (oval)
{
if(blue){
g.setColor(Color.BLUE);
g.fillOval(startX,startY,height,width);
}elseif (red){
g.setColor(Color.RED);
g.fillOval(startX,startY,height,width);
}elseif (green){
g.setColor(Color.GREEN);
g.fillOval(startX,startY,height,width);
}else{
g.setColor(Color.BLACK);
g.fillOval(startX,startY,height,width);
}
}
}
};/// i thought i would use colorChanger to change the color on the color pallet
publicvoid colorChanger(Graphics g){
if (red){
g.setColor(Color.RED);
}elseif (green){
g.setColor(Color.GREEN);
}elseif (blue){
g.setColor(Color.BLUE);
}else{
g.setColor(Color.BLACK);
}
}
publicvoid shapePanel_mousePressed(MouseEvent e){
int x = e.getX();
int y = e.getY();
if(x<30){
if (y<60){
rect=true;
}elseif (y>80&y<100){
oval =true;
}
}
}
publicvoid colorPanel_mousePressed(MouseEvent e){
int x=getX();
int y=getY();
if (y<30){
if (x<205&x>185){
green=true;
}elseif (x<180&x>160){
red=true;
}elseif(x<230&x>210){
blue=true;
}else{
black=true;
}
}
}
publicvoid canvas_mouseDragged(MouseEvent e){
height = e.getX();
width = e.getY();
repaint();
}
publicvoid canvas_mousePressed(MouseEvent e){
startX=e.getX();
startY=e.getY();
}
}
class ColourChooser_shapePanel_mouseAdapterextends MouseAdapter{
private ColourChooser adaptee;
ColourChooser_shapePanel_mouseAdapter(ColourChooser adaptee){
this.adaptee = adaptee;
}
publicvoid mousePressed(MouseEvent e){
adaptee.shapePanel_mousePressed(e);
}
}
class ColourChooser_colorPanel_mouseAdapterextends MouseAdapter{
private ColourChooser adaptee;
ColourChooser_colorPanel_mouseAdapter(ColourChooser adaptee){
this.adaptee = adaptee;
}
publicvoid mousePressed(MouseEvent e){
adaptee.colorPanel_mousePressed(e);
}
}
class ColourChooser_canvas_mouseMotionAdapterextends MouseMotionAdapter{
private ColourChooser adaptee;
ColourChooser_canvas_mouseMotionAdapter(ColourChooser adaptee){
this.adaptee = adaptee;
}
publicvoid mouseDragged(MouseEvent e){
adaptee.canvas_mouseDragged(e);
}
}
class ColourChooser_canvas_mouseAdapterextends MouseAdapter{
private ColourChooser adaptee;
ColourChooser_canvas_mouseAdapter(ColourChooser adaptee){
this.adaptee = adaptee;
}
publicvoid mousePressed(MouseEvent e){
adaptee.canvas_mousePressed(e);
}
}
