1 files changed, 129 insertions, 0 deletions
diff --git a/java/applets/src/aurelienribon/utils/swing/ImagePanel.java b/java/applets/src/aurelienribon/utils/swing/ImagePanel.java
new file mode 100755
index 0000000..8e9be0f
--- /dev/null
+++ b/java/applets/src/aurelienribon/utils/swing/ImagePanel.java
@@ -0,0 +1,129 @@
+package aurelienribon.utils.swing;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.TexturePaint;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javax.imageio.ImageIO;
+import javax.swing.JPanel;
+
+/**
+ * @author Aurelien Ribon | http://www.aurelienribon.com
+ */
+public class ImagePanel extends JPanel {
+	private BufferedImage background;
+	private BufferedImage image;
+	private boolean useRegion;
+	private int x, y, width, height;
+
+	public void setBackground(URL bgURL) {
+		try {
+			background = ImageIO.read(bgURL);
+		} catch (IOException ex) {
+		}
+	}
+
+	public void clearImage() {
+		image = null;
+		repaint();
+	}
+
+	public void setImage(BufferedImage img) {
+		image = img;
+		repaint();
+	}
+
+	public void setImage(File img) {
+		setImage(img, 0, 0, 0, 0);
+		useRegion = false;
+	}
+
+	public void setImage(URL imgUrl) {
+		setImage(imgUrl, 0, 0, 0, 0);
+		useRegion = false;
+	}
+
+	public void setImage(File img, int x, int y, int width, int height) {
+		this.x = x;
+		this.y = y;
+		this.width = width;
+		this.height = height;
+		useRegion = true;
+
+		try {
+			image = img != null ? ImageIO.read(img) : null;
+			repaint();
+		} catch (IOException ex) {
+			Logger.getLogger(ImagePanel.class.getName()).log(Level.SEVERE, null, ex);
+		}
+	}
+
+	public void setImage(URL imgUrl, int x, int y, int width, int height) {
+		this.x = x;
+		this.y = y;
+		this.width = width;
+		this.height = height;
+		useRegion = true;
+
+		try {
+			image = imgUrl != null ? ImageIO.read(imgUrl) : null;
+			repaint();
+		} catch (IOException ex) {
+			Logger.getLogger(ImagePanel.class.getName()).log(Level.SEVERE, null, ex);
+		}
+	}
+
+	@Override
+	protected void paintComponent(Graphics g) {
+		Graphics2D gg = (Graphics2D)g;
+		gg.setColor(Color.LIGHT_GRAY);
+		gg.fillRect(0, 0, getWidth(), getHeight());
+
+		if (background != null) {
+			TexturePaint paint = new TexturePaint(background, new Rectangle(0, 0, background.getWidth(), background.getHeight()));
+			gg.setPaint(paint);
+			gg.fillRect(0, 0, getWidth(), getHeight());
+			gg.setPaint(null);
+		}
+
+		if (image != null && !useRegion) {
+			float panelRatio = (float)getWidth() / (float)getHeight();
+			float imgRatio = (float)image.getWidth() / (float)image.getHeight();
+
+			if (imgRatio > panelRatio) {
+				float tw = (float)getWidth();
+				float th = (float)getWidth() / imgRatio;
+				gg.drawImage(image, 0, (int)(getHeight()/2 - th/2), (int) tw, (int) th, null);
+			} else {
+				float tw = (float)getHeight() * imgRatio;
+				float th = (float)getHeight();
+				gg.drawImage(image, (int)((float)getWidth()/2 - tw/2), 0, (int) tw, (int) th, null);
+			}
+
+		} else if (image != null && useRegion) {
+			float panelRatio = (float)getWidth() / (float)getHeight();
+			float imgRatio = (float)width / (float)height;
+
+			if (imgRatio > panelRatio) {
+				int tw = getWidth();
+				int th = (int) (getWidth() / imgRatio);
+				int tx = 0;
+				int ty = getHeight()/2 - th/2;
+				gg.drawImage(image, tx, ty, tx + tw, ty + th, x, y, x + width, y + width, null);
+			} else {
+				int tw = (int) (getHeight() * imgRatio);
+				int th = getHeight();
+				int tx = getWidth()/2 - tw/2;
+				int ty = 0;
+				gg.drawImage(image, tx, ty, tx + tw, ty + th, x, y, x + width, y + width, null);
+			}
+		}
+	}
+}