Merged MunkiStatus.app and Managed Software Update.app. Added UI for Optional Software.

git-svn-id: http://munki.googlecode.com/svn/trunk@579 a4e17f2e-e282-11dd-95e1-755cbddbdd66

code/Managed Software Update/ScaledImageView.m

@@ -0,0 +1,76 @@
+//
+//  ScaledImageView.m
+//
+//  Created by Greg Neagle on 5/27/09.
+//
+// Copyright 2009 Greg Neagle.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// 
+//      http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+
+#import "ScaledImageView.h"
+
+
+@implementation ScaledImageView
+
+-(void)drawRect:(NSRect)rect {
+	
+	NSRect dstRect = [self bounds];
+	
+	float sourceWidth = [[self image] size].width;
+    float sourceHeight = [[self image] size].height;
+	float targetWidth = dstRect.size.width;
+    float targetHeight = dstRect.size.height;
+	
+	// Calculate aspect ratios
+    float sourceRatio = sourceWidth / sourceHeight;
+    float targetRatio = targetWidth / targetHeight;
+
+	// Determine what side of the source image to use for proportional scaling
+    BOOL scaleWidth = (sourceRatio <= targetRatio);
+	
+	// Proportionally scale source image
+    float scalingFactor, scaledWidth, scaledHeight;
+    if (scaleWidth) {
+        scalingFactor = 1.0 / sourceRatio;
+        scaledWidth = targetWidth;
+        scaledHeight = round(targetWidth * scalingFactor);
+    } else {
+        scalingFactor = sourceRatio;
+        scaledWidth = round(targetHeight * scalingFactor);
+        scaledHeight = targetHeight;
+    }
+    float scaleFactor = scaledHeight / sourceHeight;
+    
+    // Calculate compositing rectangles
+    NSRect sourceRect;
+	float destX, destY;
+	
+	// Crop from center
+	destX = round((scaledWidth - targetWidth) / 2.0);
+	destY = round((scaledHeight - targetHeight) / 2.0);
+	
+	sourceRect = NSMakeRect(destX / scaleFactor, destY / scaleFactor, 
+							targetWidth / scaleFactor, targetHeight / scaleFactor);
+	
+
+	[[self image] drawInRect:dstRect
+					fromRect:sourceRect 
+				    operation:NSCompositeSourceOver 
+					fraction:1.0];
+	
+}
+
+
+@end