osx gui: Added dragging of the preview pdf to other applications.

The preview area can be dragged as a pasteboard pdf to other applications rich text editor views. Notably, this means that small images can be made and emailed as PDFs. This is not dragging the PDFs as files so dragging to the finder for saving doesn’t work.

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;