3 files changed, 86 insertions, 1 deletions
diff --git a/tikzit/src/osx/DraggablePDFView.h b/tikzit/src/osx/DraggablePDFView.h
new file mode 100644
index 0000000..9e53c44
--- /dev/null
+++ b/tikzit/src/osx/DraggablePDFView.h
@@ -0,0 +1,28 @@
+//
+//  PreviewController.h
+//  TikZiT
+//
+//  Copyright 2010 Aleks Kissinger. All rights reserved.
+//
+//
+//  This file is part of TikZiT.
+//
+//  TikZiT is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  TikZiT is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with TikZiT.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#import <Quartz/Quartz.h>
+
+@interface DraggablePDFView : PDFView
+
+@end
diff --git a/tikzit/src/osx/DraggablePDFView.m b/tikzit/src/osx/DraggablePDFView.m
new file mode 100644
index 0000000..ce57473
--- /dev/null
+++ b/tikzit/src/osx/DraggablePDFView.m
@@ -0,0 +1,56 @@
+//
+//  PreviewController.h
+//  TikZiT
+//
+//  Copyright 2010 Aleks Kissinger. All rights reserved.
+//
+//
+//  This file is part of TikZiT.
+//
+//  TikZiT is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  TikZiT is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with TikZiT.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#import "DraggablePDFView.h"
+
+@implementation DraggablePDFView
+
+- (id)initWithFrame:(NSRect)frame
+{
+    self = [super initWithFrame:frame];
+    return self;
+}
+
+- (void)drawRect:(NSRect)dirtyRect
+{
+	[super drawRect:dirtyRect];
+}
+
+- (void)mouseDown:(NSEvent *)theEvent
+{
+    NSPasteboard *pboard;
+
+    NSRect pageBox = [[[self document] pageAtIndex:0] boundsForBox:kPDFDisplayBoxMediaBox];
+    NSRect pageRect= [self convertRect:pageBox fromPage:[[self document] pageAtIndex:0]];
+    
+    pboard = [NSPasteboard pasteboardWithName:NSDragPboard];
+    [pboard declareTypes:[NSArray arrayWithObject:NSPasteboardTypePDF] owner:self];
+    [pboard setData:[[self document] dataRepresentation] forType:NSPasteboardTypePDF];
+    
+    [self dragImage:[[NSImage alloc] initWithData:[[self document] dataRepresentation]] at:pageRect.origin offset:pageRect.size
+              event:theEvent pasteboard:pboard source:self slideBack:YES];
+    
+    return;
+}
+
+@end
diff --git a/tikzit/src/osx/PreviewController.h b/tikzit/src/osx/PreviewController.h
index d6d855e..6c51a23 100644
--- a/tikzit/src/osx/PreviewController.h
+++ b/tikzit/src/osx/PreviewController.h
@@ -23,12 +23,13 @@
 
 
 #import <Cocoa/Cocoa.h>
+#import "DraggablePDFView.h"
 
 @class PDFView;
 @class PreambleController;
 
 @interface PreviewController : NSWindowController {
-	IBOutlet PDFView *pdfView;
+	IBOutlet DraggablePDFView *pdfView;
 	IBOutlet NSProgressIndicator *progressIndicator;
 	IBOutlet NSScrollView *errorTextView;
 	IBOutlet NSTextView *errorText;