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.

5 files changed, 162 insertions, 430 deletions

diff --git a/tikzit/English.lproj/Preview.xib b/tikzit/English.lproj/Preview.xib
index 46d3521..cb1e82c 100644
--- a/tikzit/English.lproj/Preview.xib
+++ b/tikzit/English.lproj/Preview.xib
@@ -1,429 +1,70 @@
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-	<data>
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-		<string key="IBDocument.SystemVersion">11B26</string>
-		<string key="IBDocument.InterfaceBuilderVersion">1617</string>
-		<string key="IBDocument.AppKitVersion">1138</string>
-		<string key="IBDocument.HIToolboxVersion">566.00</string>
-		<dictionary class="NSMutableDictionary" key="IBDocument.PluginVersions">
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-			<string key="com.apple.pdfkit.ibplugin">518</string>
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-		<array key="IBDocument.IntegratedClassDependencies">
-			<string>NSView</string>
-			<string>NSProgressIndicator</string>
-			<string>NSScrollView</string>
-			<string>NSWindowTemplate</string>
-			<string>NSTextView</string>
-			<string>PDFView</string>
-			<string>NSScroller</string>
-			<string>NSCustomObject</string>
-		</array>
-		<array key="IBDocument.PluginDependencies">
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-			<string>com.apple.pdfkit.ibplugin</string>
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-				<string key="NSClassName">PreviewController</string>
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-			<object class="NSCustomObject" id="1003">
-				<string key="NSClassName">FirstResponder</string>
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-				<string key="NSClassName">NSApplication</string>
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-				<int key="NSWindowBacking">2</int>
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-				<int key="NSWTFlags">536870912</int>
-				<string key="NSWindowTitle">Preview</string>
-				<string key="NSWindowClass">NSWindow</string>
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-					<reference key="NSNextResponder"/>
-					<int key="NSvFlags">256</int>
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-											<int key="NSTVFlags">6</int>
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-									<reference key="NSBGColor" ref="579751116"/>
-									<object class="NSCursor" key="NSCursor">
-										<string key="NSHotSpot">{4, 5}</string>
-										<object class="NSImage" key="NSImage">
-											<int key="NSImageFlags">12582912</int>
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-							<int key="NSpiFlags">28682</int>
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-					<reference key="NSSuperview"/>
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-			<array class="NSMutableArray" key="referencedPartialClassDescriptions">
-				<object class="IBPartialClassDescription">
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-					<string key="superclassName">NSWindowController</string>
-					<dictionary class="NSMutableDictionary" key="outlets">
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-						<string key="errorTextView">NSScrollView</string>
-						<string key="pdfView">PDFView</string>
-						<string key="progressIndicator">NSProgressIndicator</string>
-					</dictionary>
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-						<string key="minorKey">./Classes/PreviewController.h</string>
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-</archive>
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+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="4514" systemVersion="13A603" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none">
+    <dependencies>
+        <deployment defaultVersion="1070" identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="4514"/>
+        <plugIn identifier="com.apple.pdfkit.ibplugin" version="3338"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="PreviewController">
+            <connections>
+                <outlet property="errorText" destination="11" id="12"/>
+                <outlet property="errorTextView" destination="8" id="13"/>
+                <outlet property="pdfView" destination="3" id="5"/>
+                <outlet property="progressIndicator" destination="6" id="7"/>
+                <outlet property="window" destination="1" id="4"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application"/>
+        <window title="Preview" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" oneShot="NO" wantsToBeColor="NO" animationBehavior="default" id="1">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <windowPositionMask key="initialPositionMask" leftStrut="YES" bottomStrut="YES"/>
+            <rect key="contentRect" x="196" y="138" width="480" height="380"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="1440" height="878"/>
+            <view key="contentView" id="2">
+                <rect key="frame" x="0.0" y="0.0" width="480" height="380"/>
+                <autoresizingMask key="autoresizingMask"/>
+                <subviews>
+                    <pdfView autoresizesSubviews="NO" wantsLayer="YES" displayMode="singlePage" displaysPageBreaks="NO" autoScales="YES" id="3" customClass="DraggablePDFView">
+                        <rect key="frame" x="0.0" y="0.0" width="480" height="380"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                    </pdfView>
+                    <scrollView hidden="YES" horizontalLineScroll="10" horizontalPageScroll="10" verticalLineScroll="10" verticalPageScroll="10" hasHorizontalScroller="NO" usesPredominantAxisScrolling="NO" id="8">
+                        <rect key="frame" x="0.0" y="0.0" width="480" height="380"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <clipView key="contentView" id="5CZ-eC-gQr">
+                            <rect key="frame" x="1" y="1" width="463" height="378"/>
+                            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                            <subviews>
+                                <textView editable="NO" importsGraphics="NO" richText="NO" findStyle="panel" allowsUndo="YES" usesRuler="YES" usesFontPanel="YES" verticallyResizable="YES" allowsNonContiguousLayout="YES" spellingCorrection="YES" smartInsertDelete="YES" id="11">
+                                    <rect key="frame" x="0.0" y="0.0" width="463" height="378"/>
+                                    <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                                    <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                                    <size key="minSize" width="463" height="378"/>
+                                    <size key="maxSize" width="493" height="10000000"/>
+                                    <color key="insertionPointColor" white="0.0" alpha="1" colorSpace="calibratedWhite"/>
+                                    <size key="minSize" width="463" height="378"/>
+                                    <size key="maxSize" width="493" height="10000000"/>
+                                </textView>
+                            </subviews>
+                            <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                        </clipView>
+                        <scroller key="horizontalScroller" hidden="YES" verticalHuggingPriority="750" doubleValue="1" horizontal="YES" id="10">
+                            <rect key="frame" x="-100" y="-100" width="463" height="15"/>
+                            <autoresizingMask key="autoresizingMask"/>
+                        </scroller>
+                        <scroller key="verticalScroller" verticalHuggingPriority="750" horizontal="NO" id="9">
+                            <rect key="frame" x="464" y="1" width="15" height="378"/>
+                            <autoresizingMask key="autoresizingMask"/>
+                        </scroller>
+                    </scrollView>
+                    <progressIndicator horizontalHuggingPriority="750" verticalHuggingPriority="750" maxValue="100" displayedWhenStopped="NO" bezeled="NO" indeterminate="YES" style="spinning" id="6">
+                        <rect key="frame" x="7" y="342" width="32" height="32"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
+                    </progressIndicator>
+                </subviews>
+            </view>
+        </window>
+    </objects>
+</document>
\ No newline at end of file
diff --git a/tikzit/TikZiT.xcodeproj/project.pbxproj b/tikzit/TikZiT.xcodeproj/project.pbxproj
index 01e63c7..8b4df9b 100644
--- a/tikzit/TikZiT.xcodeproj/project.pbxproj
+++ b/tikzit/TikZiT.xcodeproj/project.pbxproj
@@ -129,6 +129,7 @@
 		7F6E2C8916B0091300BFE20D /* maths.m in Sources */ = {isa = PBXBuildFile; fileRef = 7F6E2C8716B0091300BFE20D /* maths.m */; };
 		7F6E2C8A16B0096000BFE20D /* SupportDir.m in Sources */ = {isa = PBXBuildFile; fileRef = 55652DF813E1F2030023F4C6 /* SupportDir.m */; };
 		7F6E2C8C16B00ABA00BFE20D /* SFBInspectors.framework in CopyFiles */ = {isa = PBXBuildFile; fileRef = 55CA98D412EF8FCE008F0368 /* SFBInspectors.framework */; };
+		7F73438A184AC559002897D0 /* DraggablePDFView.m in Sources */ = {isa = PBXBuildFile; fileRef = 7F734389184AC559002897D0 /* DraggablePDFView.m */; };
 		7F781C1A16B5DE1400239826 /* ParseErrorView.m in Sources */ = {isa = PBXBuildFile; fileRef = 7F781C1916B5DE1400239826 /* ParseErrorView.m */; };
 		7F90E88616DD29600069EBCD /* NSString+Tikz.m in Sources */ = {isa = PBXBuildFile; fileRef = 7F90E88516DD29600069EBCD /* NSString+Tikz.m */; };
 		7F90E88D16DD47540069EBCD /* PreferenceController.m in Sources */ = {isa = PBXBuildFile; fileRef = 7F90E88B16DD47540069EBCD /* PreferenceController.m */; };
@@ -370,6 +371,8 @@
 		55F9E04411FF54F000F5659E /* NSString+LatexConstants.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = "NSString+LatexConstants.m"; path = "src/common/NSString+LatexConstants.m"; sourceTree = "<group>"; };
 		55FF4E64116A401B000C22B4 /* libicucore.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; name = libicucore.dylib; path = usr/lib/libicucore.dylib; sourceTree = SDKROOT; };
 		7F6E2C8716B0091300BFE20D /* maths.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = maths.m; path = src/common/test/maths.m; sourceTree = "<group>"; };
+		7F734388184AC559002897D0 /* DraggablePDFView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = DraggablePDFView.h; path = src/osx/DraggablePDFView.h; sourceTree = "<group>"; };
+		7F734389184AC559002897D0 /* DraggablePDFView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = DraggablePDFView.m; path = src/osx/DraggablePDFView.m; sourceTree = "<group>"; };
 		7F781C1816B5DE1400239826 /* ParseErrorView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = ParseErrorView.h; path = src/osx/ParseErrorView.h; sourceTree = "<group>"; };
 		7F781C1916B5DE1400239826 /* ParseErrorView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = ParseErrorView.m; path = src/osx/ParseErrorView.m; sourceTree = "<group>"; };
 		7F90E88416DD29600069EBCD /* NSString+Tikz.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = "NSString+Tikz.h"; path = "src/common/NSString+Tikz.h"; sourceTree = "<group>"; };
@@ -573,6 +576,8 @@
 		5573B8BF11D9FD1800B5DC5D /* Preview */ = {
 			isa = PBXGroup;
 			children = (
+				7F734388184AC559002897D0 /* DraggablePDFView.h */,
+				7F734389184AC559002897D0 /* DraggablePDFView.m */,
 				5573B8C011D9FD3200B5DC5D /* PreviewController.h */,
 				5573B8C111D9FD3200B5DC5D /* PreviewController.m */,
 			);
@@ -902,6 +907,7 @@
 				558F18F7117B043C009863B2 /* AppDelegate.m in Sources */,
 				558F18F9117B043C009863B2 /* EdgeControlLayer.m in Sources */,
 				558F18FA117B043C009863B2 /* GraphicsView.m in Sources */,
+				7F73438A184AC559002897D0 /* DraggablePDFView.m in Sources */,
 				558F18FB117B043C009863B2 /* Grid.m in Sources */,
 				558F18FC117B043C009863B2 /* NodeLayer.m in Sources */,
 				558F18FD117B043C009863B2 /* NodeSelectionLayer.m in Sources */,
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;