時間をかけてじっくり読みたい
これは本当に基本的な例です。実際にロゴをレンダリングするためのコードを追加することは気にしませんでした。推奨される読書リストを読んで、それがどのように達成されるかを理解できるはずです ;)
public class AppendImage {
public static void main(String[] args) {
new AppendImage();
}
public AppendImage() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException ex) {
} catch (InstantiationException ex) {
} catch (IllegalAccessException ex) {
} catch (UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new ImagePane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class ImagePane extends JPanel {
private BufferedImage sourceImage;
private BufferedImage labeledImage;
public ImagePane() {
try {
sourceImage = ImageIO.read(getClass().getResource("/source.jpg"));
labeledImage = addLabel("Hello", sourceImage);
} catch (IOException exp) {
exp.printStackTrace();
}
}
@Override
public Dimension getPreferredSize() {
int width = sourceImage.getWidth() + labeledImage.getWidth();
int height = labeledImage.getHeight();
return new Dimension(width, height);
}
protected BufferedImage addLabel(String label, BufferedImage sourceImage) {
Font font = UIManager.getFont("Label.font");
FontMetrics fm = getFontMetrics(font);
int width = sourceImage.getWidth() + 2;
int height = sourceImage.getHeight() + 4 + fm.getHeight() + 4;
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = image.createGraphics();
g2d.setColor(Color.WHITE);
g2d.fillRect(0, 0, width, height);
g2d.setColor(Color.BLACK);
g2d.setStroke(new BasicStroke(2, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
g2d.drawRect(0, 0, width - 1, height - 1);
g2d.drawImage(sourceImage, 1, 1, this);
g2d.setColor(Color.RED);
g2d.setStroke(new BasicStroke(2f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 10f, new float[]{10f}, 0f));
g2d.drawLine(0, sourceImage.getHeight() + 2, image.getWidth(), sourceImage.getHeight() + 2);
int y = sourceImage.getHeight() + (((image.getHeight() - sourceImage.getHeight()) - fm.getHeight()) / 2) + 2;
g2d.drawString(label, 2, y + fm.getAscent());
String logo = "Logo here";
int x = image.getWidth() - fm.stringWidth(logo) - 12;
g2d.drawString(logo, x, y + fm.getAscent());
g2d.dispose();
return image;
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
int x = 0;
g.drawImage(sourceImage, x, 0, this);
x += sourceImage.getWidth();
g.drawImage(labeledImage, x, 0, this);
}
}
}