From 47849b61ec0525d442ed1e3c13e4099806da6fa1 Mon Sep 17 00:00:00 2001
From: Ziver Koc <ziver@koc.se>
Date: Sat, 23 Jul 2011 20:53:56 +0000
Subject: [PATCH] Added a crop and then scale function

---
 src/zutil/image/ImageUtil.java | 43 ++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/src/zutil/image/ImageUtil.java b/src/zutil/image/ImageUtil.java
index cfa8cd2..405cac5 100644
--- a/src/zutil/image/ImageUtil.java
+++ b/src/zutil/image/ImageUtil.java
@@ -66,4 +66,47 @@ public class ImageUtil {
 		g2d.dispose();
 		return tmp;
 	}
+
+
+	/**
+	 * Crops a image to a specific aspect ration
+	 *
+	 * @param		image		is the actual image to crop
+	 * @param		aspect		is the aspect ratio to convert the image to
+	 * @return					a new image with the specified aspect ratio
+	 */
+	public static BufferedImage cropToAspectRatio(BufferedImage image, float aspect){
+		int x = 0, y = 0;
+		int width = image.getWidth();
+		int height = image.getHeight();
+
+		// Check if the width is larger than the heigth
+		if( width > height ){
+			width = (int) (height * aspect);
+			x = image.getWidth()/2 - width/2;
+		}
+		else{
+			height = (int) (width * aspect);
+			y = image.getHeight()/2 - height/2;
+		}
+
+		return image.getSubimage(x, y, width, height);
+	}
+
+	/**
+	 * This function crops the image to the aspect ratio of 
+	 * the width and height and then scales the image to the 
+	 * given values 
+	 *
+	 * @param               source          is the image to resize
+	 * @param               width           is the wanted width
+	 * @param               height          is the wanted height
+	 * @return								a new image with the specified width and height
+	 */
+	public static BufferedImage cropScale(BufferedImage source, int width, int height){
+		float aspect = width/height;
+		BufferedImage tmp = cropToAspectRatio(source, aspect);
+		tmp = scale(tmp, width, height, false);
+		return tmp;
+	}
 }