質問内容
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以下のプログラムを改良して
アナログ時計を作りたいんですけど
時間をCalendarで取得したあとの処理を教えてください
できればソースなども含めて教えていただけると助かり
ます
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.Rectangle2D;
public class RotatePanel extends JPanel implements
ActionListener {
Timer timer = new Timer(1000, this);
int times = 0;
public RotatePanel() {
timer.start();
}
public void actionPerformed(ActionEvent e) {
times = (times + 1) % 60;
repaint();
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setStroke(new BasicStroke(5.0f));
g2d.setPaint(Color.blue);
g2d.draw(new Polygon(new int[]{0, 0, 40},
new int[]{0, 40, 20}, 3));
int cx = getWidth() / 2;
int cy = getHeight() / 2;
g2d.rotate((2 * Math.PI * times) / 60, cx,
cy);
Font font = new Font("Serif", Font.PLAIN,
20);
g2d.setFont(font);
String str = "--------";
g2d.drawString(str, cx, cy);
FontMetrics fm = g2d.getFontMetrics();
Rectangle2D rec = fm.getStringBounds(str,
g2d);
int x = cx + (int) rec.getX();
int y = cy + (int) rec.getY();
int w = (int) rec.getWidth();
int h = (int) rec.getHeight();
g2d.draw(new Rectangle(x, y, w, h));
}
public static void main (String[] args) {
JFrame jFrame = new JFrame("analog");
RotatePanel rotatePanel = new
RotatePanel();
jFrame.getContentPane().add(rotatePanel,
BorderLayout.CENTER);
jFrame.setSize(400, 200);
jFrame.setVisible(true);
}
}
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