Buat class baru sebagai contoh jButtonFlatUI.java,input source code berikut :
import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.RenderingHints; import java.awt.Shape; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.geom.RoundRectangle2D; import javax.swing.JButton; /** * * @author Anerfinity */ public class jButtonFlatUI extends JButton { private Color MouseHover = new Color(255, 111, 99); private Color MousePress = new Color(36, 168, 110); private Color WarnaBackground = new Color(255, 51, 0); private boolean enter, press; public boolean isEnter() { return enter; } public void setEnter(boolean enter) { this.enter = enter; repaint(); } public boolean isPress() { return press; } public void setPress(boolean press) { this.press = press; repaint(); } public jButtonFlatUI() { setOpaque(false); setBorderPainted(false); setFocusPainted(false); setContentAreaFilled(false); setForeground(Color.white); setFont(getFont().deriveFont(Font.PLAIN)); addMouseListener(new MouseAdapter() { @Override public void mouseEntered(MouseEvent e) { super.mouseEntered(e); setEnter(true); } @Override public void mouseExited(MouseEvent e) { super.mouseExited(e); setEnter(false); } @Override public void mousePressed(MouseEvent e) { super.mousePressed(e); setPress(true); } @Override public void mouseReleased(MouseEvent e) { super.mouseReleased(e); setPress(false); } }); } @Override protected void paintComponent(Graphics g) { Graphics2D gd = (Graphics2D) g.create(); Color warna = WarnaBackground; Shape shape = new RoundRectangle2D.Double(0, 0, getWidth(), getHeight(), 10, 10); if (isEnter()) { warna = MouseHover; if (isPress()) { warna = MousePress; } } gd.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); gd.setColor(warna); gd.fill(shape); gd.dispose(); super.paintComponent(g); } public Color getWarnaBackground() { return this.WarnaBackground; } public void setWarnaBackground(Color bgColor) { this.WarnaBackground = bgColor; } //Warna mouse hover Button public Color getMouseHover() { return this.MouseHover; } public void setMouseHover(Color mousehover) { this.MouseHover = mousehover; } //Warna mouse press Button public Color getMousePress() { return this.MousePress; } public void setMousePress(Color mousepress) { this.MousePress = mousepress; } }
Clean and build project, lalu drag jButtonFlatUI.java kedalam jFrame