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| import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.AffineTransform;
import java.awt.geom.Area;
import java.awt.geom.Rectangle2D;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.Border;
public class FrameBorder implements Border {
private String title;
public FrameBorder() {
}
public FrameBorder(String title) {
this.title=title;
}
public void registerFrame(JPanel panel, JFrame frame) {
MouseAdapter mouseAdapter = new MouseAdapter() {
private boolean drag;
private Point location;
@Override
public void mouseClicked(MouseEvent e) {
if ( panel.getBorder()==FrameBorder.this && inButton(panel, e.getPoint())) {
frame.dispose();
}
}
@Override
public void mousePressed(MouseEvent e) {
if ( panel.getBorder()==FrameBorder.this && inTitleBar(panel, e.getPoint())) {
drag=true;
location = e.getPoint();
}
}
@Override
public void mouseMoved(MouseEvent e) {
panel.repaint();
}
@Override
public void mouseDragged(MouseEvent e) {
if ( drag ) {
if ( panel.getBorder()==FrameBorder.this ) {
//if ( inTitleBar(panel, e.getPoint()) ) {
frame.setLocation(frame.getX()+e.getX()-location.x, frame.getY()+e.getY()-location.y);
//}
}
else {
drag=false;
}
}
}
@Override
public void mouseReleased(MouseEvent e) {
drag=false;
}
};
panel.addMouseListener(mouseAdapter);
panel.addMouseMotionListener(mouseAdapter);
}
public void setTitle(String title) {
this.title=title;
}
@Override
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
Graphics2D g2d = (Graphics2D) g.create(x, y, width, height);
Rectangle componentBounds = new Rectangle(x,y,width,height);
Insets insets = getBorderInsets(c);
Rectangle innerBounds = new Rectangle(x+insets.left,y+insets.top,width-insets.left-insets.right,height-insets.top-insets.bottom);
Area area = new Area(componentBounds);
area.subtract(new Area(innerBounds));
g2d.setClip(area);
g2d.setPaint(Color.CYAN);
g2d.fillRect(x, y, width-1, height-1);;
g2d.setPaint(Color.GRAY);
g2d.drawRect(x, y, width-1, height-1);
g2d.drawRect(innerBounds.x-1, innerBounds.y-1, innerBounds.width+1, innerBounds.height+1);
if ( title!=null ) {
g2d.setPaint(Color.BLACK);
g2d.setFont(new Font("Arial",Font.BOLD,12));
FontMetrics fm = g2d.getFontMetrics();
Rectangle2D stringBounds = fm.getStringBounds(title, g2d);
if ( stringBounds.getWidth()>width-80 ) {
stringBounds.setFrame(32, 15-stringBounds.getHeight()/2, width-80, stringBounds.getHeight()+4);
g2d.clip(stringBounds);
}
else {
stringBounds.setFrame(32, 15-stringBounds.getHeight()/2, stringBounds.getWidth()+4, stringBounds.getHeight()+4);
}
g2d.drawString(title, 34, 16+(fm.getAscent()-fm.getDescent())/2);
area.subtract(new Area(stringBounds));
g2d.setClip(area);
}
g2d.setPaint(Color.GRAY);
for(int i=5; i<28; i+=3) {
g2d.drawLine(3, i, width-6-32, i);
}
g2d.drawRect(width-32, 3, 25, 25);
Area cross = new Area(new Rectangle(width-22,5,5,21));
cross.add(new Area(new Rectangle(width-30,13,21,5)));
AffineTransform af=AffineTransform.getRotateInstance(Math.PI/4, width-19.5, 15.5);
af.translate(0.5, 0);
cross = cross.createTransformedArea(af);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
if ( c.getMousePosition()!=null && inButton(c,c.getMousePosition()) ) {
g2d.fill(cross);
}
g2d.draw(cross);
g2d.dispose();
}
public boolean inTitleBar(Component c, Point p) {
if (p==null ) return false;
return new Rectangle(0,0,c.getWidth(),32).contains(p) && !inButton(c, p);
}
public boolean inButton(Component c, Point p) {
if (p==null ) return false;
return new Rectangle(c.getWidth()-32, 3, 25, 25).contains(p);
}
@Override
public Insets getBorderInsets(Component c) {
return new Insets(32,4,4,4);
}
@Override
public boolean isBorderOpaque() {
return true;
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setUndecorated(true);
FrameBorder frameBorder = new FrameBorder("Démo");
JPanel panel = new JPanel(new GridBagLayout());
panel.setBorder(frameBorder);
JButton button = new JButton("Supprimer dérocations");
button.addActionListener(e -> toggleDecorations(panel, button, frameBorder));
panel.add(button);
frame.add(panel);
frameBorder.registerFrame(panel, frame);
frame.setSize(300, 300);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private static void toggleDecorations(JPanel panel, JButton button, Border border) {
Border currentBorder = panel.getBorder();
if (currentBorder==null) {
panel.setBorder(border);
button.setText("Supprimer décorations");
} else {
panel.setBorder(null);
button.setText("Afficher décorations");
}
}
} |
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