我花了大部分时间试图模仿Material Design外观(我非常喜欢),如按钮here所示:
我正在努力使Jbutton的边框变圆,并在按钮上添加阴影。我找到了一种做圆形边框但是JButton背景的方法,但它不是留在这里。
public class LoginView {
private Component mainPanel;
public static void main(String[] args){
JFrame frame = new JFrame("Sign In to eVenture Books");
frame.setSize(350, 200);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel();
frame.add(panel);
placeComponents(panel);
frame.setVisible(true);
}//End of Main()
private static class RoundedBorder implements Border {
private int radius;
RoundedBorder(int radius) {
this.radius = radius;
}
public Insets getBorderInsets(Component c) {
return new Insets(this.radius+1, this.radius+1, this.radius+1, this.radius+1);
}
public boolean isBorderOpaque() {
return true;
}
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
g.drawRoundRect(x, y, width-1, height-1, radius, radius);
}
}//End of Class RoundedBorder
private static void placeComponents(JPanel panel) {
panel.setLayout(null);
JLabel userLabel = new JLabel("Username :");
userLabel.setBounds(10, 10, 80, 25);
panel.add(userLabel);
JTextField userText = new JTextField(20);
userText.setBounds(100, 10, 160, 25);
panel.add(userText);
JLabel passwordLabel = new JLabel("Password :");
passwordLabel.setBounds(10, 40, 80, 25);
panel.add(passwordLabel);
JPasswordField passwordText = new JPasswordField(20);
passwordText.setBounds(100, 40, 160, 25);
panel.add(passwordText);
JButton loginButton = new JButton("LOGIN");
loginButton.setBounds(10, 80, 80, 25);
loginButton.setBackground(new Color(0xF06292));
//loginButton.setBorder(new RoundedBorder(5));
loginButton.setMargin(new Insets(0, 0, 0, 0));
loginButton.setFont(new Font("Arial", Font.PLAIN, 15));
//loginButton.setForeground(new Color(0xFAFAFA));
//loginButton.setBorderPainted(false);
panel.add(loginButton);
JButton registerButton = new JButton("Register");
registerButton.setBounds(180, 80, 80, 25);
registerButton.setBackground(new Color(0xF06292));
registerButton.setBorder(new RoundedBorder(5));
panel.add(registerButton);
JButton quitButton = new JButton("Quit");
quitButton.setBounds(95, 80, 80, 25);
quitButton.setBackground(new Color(0x757575));
//quitButton.setBorder(BorderFactory.createSoftBevelBorder(BevelBorder.RAISED));
//quitButton.setBorder(new RoundedBorder(5));
// quitButton.setOpaque(false);
panel.add(quitButton);
JLabel titleLabel = new JLabel("Sign in to eVenture Books");
titleLabel.setBounds(10, 120, 200, 25);
titleLabel.setFont(new java.awt.Font("Freestyle Script", 1, 18));
titleLabel.setText("Sign In to eVenture Books");
panel.add(titleLabel);
}
}
答案 0 :(得分:0)
你需要扩展一个JButton类,然后扩展calss覆盖方法paint(Graphics g)。
在此方法中,使用Graphics g对象绘制按钮。 您可以将g Graohics转换为Graphics2D以获得更多绘图方法。 在paint()中,您可以对按钮的尺寸使用getWidth()和getHeight()方法。要绘制阴影和/或圆形按钮,您需要绘制比其边界更小的按钮,并在周围的自由空间中绘制一些阴影,因此阴影保持按钮的一部分。 JButton的边界总是矩形,你可以通过在其中绘制填充圆圈使JButton看起来圆润。不要在你的油漆中调用super.paint()。此外,您可能需要在Button上调用setOpaque(false),这样可以确保在绘制JButton之前重绘他的背景,这样您就可以绘制一些透明部分(阴影,圆圈需要瞬态区域)