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package aurelienribon.utils.swing;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import javax.swing.border.Border;
public class GroupBorder implements Border {
private final int titleHeight = 20;
private final int borderPadding = 0;
private String title = "";
public String getTitle() {
return title;
}
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 gg = (Graphics2D) g.create();
int titleW = gg.getFontMetrics().stringWidth(title) + 20;
int titleDescent = gg.getFontMetrics().getDescent();
gg.setColor(c.getBackground());
if (!title.equals("")) {
int[] xs = {0, titleW, titleW + titleHeight, 0};
int[] ys = {0, 0, titleHeight, titleHeight};
gg.fillPolygon(xs, ys, 4);
gg.fillRect(0, titleHeight, width, height);
gg.setColor(c.getForeground());
gg.drawString(title, 10, titleHeight - titleDescent);
} else {
gg.fillRect(0, 0, width, height);
}
gg.dispose();
}
@Override
public Insets getBorderInsets(Component c) {
return new Insets(!title.equals("") ? borderPadding + titleHeight : borderPadding, borderPadding, borderPadding, borderPadding);
}
@Override
public boolean isBorderOpaque() {
return false;
}
}
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