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package java2d;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Rectangle2D;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
public class ChessBoard extends JComponent {
private int nbOfCellsX;
private int nbOfCellsY;
private int cellWidth;
private int cellHeight;
private Color lightCellBackground = Color.white;
private Color darkCellBackground = Color.black;
public ChessBoard(int nbOfCellsX, int nbOfCellsY, int cellWidth, int cellHeight) {
super();
this.nbOfCellsX = nbOfCellsX;
this.nbOfCellsY = nbOfCellsY;
this.cellWidth = cellWidth;
this.cellHeight = cellHeight;
}
@Override
public boolean isOpaque() {
return true;
}
private void computePreferredSize() {
int xLength = nbOfCellsX * cellWidth;
int yLength = nbOfCellsY * cellHeight;
Dimension oldSize = getPreferredSize();
Dimension newSize = new Dimension(xLength, yLength);
setPreferredSize(newSize);
firePropertyChange("preferredSize", oldSize, newSize);
revalidate();
repaint();
}
@Override
protected void paintComponent(Graphics g) {
Rectangle2D rec = new Rectangle2D.Double(0, 0, cellWidth, cellHeight);
for (int i = 0; i < nbOfCellsY; i++) {
Graphics2D g2d = (Graphics2D) g.create();
g2d.translate(0, i * cellHeight);
for (int j = 0; j < nbOfCellsX; j++) {
if ((i + j) % 2 == 0) {
g2d.setPaint(darkCellBackground);
} else {
g2d.setPaint(lightCellBackground);
}
g2d.fill(rec);
g2d.translate(cellWidth, 0);
}
}
super.paintComponent(g);
}
/**
* @return the nbOfCellsX
*/
public int getNbOfCellsX() {
return nbOfCellsX;
}
/**
* @param nbOfCellsX
* the nbOfCellsX to set
*/
public void setNbOfCellsX(int nbOfCellsX) {
this.nbOfCellsX = nbOfCellsX;
computePreferredSize();
}
/**
* @return the nbOfCellsY
*/
public int getNbOfCellsY() {
return nbOfCellsY;
}
/**
* @param nbOfCellsY
* the nbOfCellsY to set
*/
public void setNbOfCellsY(int nbOfCellsY) {
this.nbOfCellsY = nbOfCellsY;
computePreferredSize();
}
/**
* @return the cellWidth
*/
public int getCellWidth() {
return cellWidth;
}
/**
* @param cellWidth
* the cellWidth to set
*/
public void setCellWidth(int cellWidth) {
this.cellWidth = cellWidth;
computePreferredSize();
}
/**
* @return the cellHeight
*/
public int getCellHeight() {
return cellHeight;
}
/**
* @param cellHeight
* the cellHeight to set
*/
public void setCellHeight(int cellHeight) {
this.cellHeight = cellHeight;
computePreferredSize();
}
/**
* @return the lightCellBackground
*/
public Color getLightCellBackground() {
return lightCellBackground;
}
/**
* @param lightCellBackground
* the lightCellBackground to set
*/
public void setLightCellBackground(Color lightCellBackground) {
this.lightCellBackground = lightCellBackground;
repaint();
}
/**
* @return the darkCellBackground
*/
public Color getDarkCellBackground() {
return darkCellBackground;
}
/**
* @param darkCellBackground
* the darkCellBackground to set
*/
public void setDarkCellBackground(Color darkCellBackground) {
this.darkCellBackground = darkCellBackground;
repaint();
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame f = new JFrame();
final ChessBoard b = new ChessBoard(10, 10, 30, 30);
JScrollPane p = new JScrollPane(b);
p.getVerticalScrollBar().setUnitIncrement(5);
f.add(p);
JButton button = new JButton("Change number");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
b.setNbOfCellsX(b.getNbOfCellsX() + 2);
b.setNbOfCellsY(b.getNbOfCellsY() + 2);
}
});
f.add(button, BorderLayout.SOUTH);
f.setSize(600, 400);
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
} |
[AWT/SWING] Déplacer une image sur plusieurs JPanel
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