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diff --git a/src/osx/TikzWindowController.m b/src/osx/TikzWindowController.m
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+++ b/src/osx/TikzWindowController.m
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+//
+//  TikzWindowController.m
+//  TikZiT
+//
+//  Created by Aleks Kissinger on 26/01/2011.
+//  Copyright 2011 __MyCompanyName__. All rights reserved.
+//
+
+#import "TikzWindowController.h"
+#import "TikzDocument.h"
+#import "GraphicsView.h"
+#import "TikzSourceController.h"
+
+@implementation TikzWindowController
+
+@synthesize graphicsView, tikzSourceController;
+
+- (id)initWithDocument:(TikzDocument*)doc {
+	[super initWithWindowNibName:@"TikzDocument"];
+	document = doc;
+	return self;
+}
+
+- (void)awakeFromNib {	
+	if ([document tikz] != nil) {
+		[graphicsView setEnabled:NO];
+		[tikzSourceController setTikz:[document tikz]];
+		[tikzSourceController parseTikz:self];
+	}
+	
+	[graphicsView setDocumentUndoManager:[document undoManager]];
+	[tikzSourceController setDocumentUndoManager:[document undoManager]];
+}
+
+- (void)parseTikz:(id)sender {
+	[tikzSourceController parseTikz:sender];
+}
+
+- (void)revertTikz:(id)sender {
+	[tikzSourceController revertTikz:sender];
+}
+
+- (void)previewTikz:(id)sender {
+	PreviewController *pc = [PreviewController defaultPreviewController];
+	if (![[pc window] isVisible]) [pc showWindow:sender];
+	[pc buildTikz:[tikzSourceController tikz]];
+}
+
+- (void)zoomIn:(id)sender {
+    float scale = [[graphicsView transformer] scale] * 1.25f;
+	[[graphicsView transformer] setScale:scale];
+	[graphicsView refreshLayers];
+}
+
+- (void)zoomOut:(id)sender {
+    float scale = [[graphicsView transformer] scale] * 0.8f;
+	[[graphicsView transformer] setScale:scale];
+	[graphicsView refreshLayers];
+}
+
+- (void)zoomToActualSize:(id)sender {
+    [[graphicsView transformer] setScale:50.0f];
+	[graphicsView refreshLayers];
+}
+
+@end