I need to create an application with interface scaling. I have a button with icon inside and jpanel, that hold this button. The problem is that when scale is on - an icon is blurred and to fix this, I use downscaling in paintComponent. When system scale is on, I have normal image, as a result. But JPanel still have a scaled size. I tryed to override JPanel paintComponent too, but as a result I had too small buttons, because downscale on button and donwscale on JPanel work togeather. I can't use scale only from JPanel, when I click a button, it take a scaled size and image blurred again. This is a simple example.
And the code is:
public class Test{
public static void main(String[] args) throws Exception{
System.setProperty("sun.java2d.uiScale", "1.5");
JFrame j = new JFrame();
Image img = ImageIO.read(new File("D:\\1.png"));
j.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
j.setPreferredSize(new Dimension(300, 150));
j.setVisible(true);
j.setLocationRelativeTo(null);
j.setLayout(new BorderLayout());
img = img.getScaledInstance((int) (60 * 1.5),(int) (60 * 1.5),Image.SCALE_DEFAULT);
JToggleButton tb = new JToggleButton(){
@Override
protected void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g2.scale(0.67,0.67);
super.paintComponent(g2);
}
};
tb.setIcon(new ImageIcon(img));
JToggleButton tb2 = new JToggleButton(){
@Override
protected void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g2.scale(0.67,0.67);
super.paintComponent(g2);
}
};
tb2.setIcon(new ImageIcon(img));
JPanel jPanel = new JPanel(){
};
jPanel.setLayout(new GridLayout(1,1));
jPanel.add(tb);
jPanel.setBackground(Color.RED);
JPanel content = new JPanel();
content.setLayout(new FlowLayout());
content.add(jPanel);
j.setContentPane(content);
j.pack();
}
} I use java10. Thank you.
