Move tikzit into "trunk" directory

git-svn-id: https://tikzit.svn.sourceforge.net/svnroot/tikzit/trunk@365 7c02a99a-9b00-45e3-bf44-6f3dd7fddb64

1 files changed, 87 insertions, 0 deletions

diff --git a/tikzit/src/common/TikzShape.m b/tikzit/src/common/TikzShape.m
new file mode 100644
index 0000000..43bd0d8
--- /dev/null
+++ b/tikzit/src/common/TikzShape.m
@@ -0,0 +1,87 @@
+//
+//  TikzShape.m
+//  TikZiT
+//  
+//  Copyright 2011 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 "TikzShape.h"
+#import "TikzGraphAssembler.h"
+#import "Graph.h"
+
+NSString *defaultTikz =
+@"\\begin{tikzpicture}\n"
+@"	\\begin{pgfonlayer}{nodelayer}\n"
+@"		\\node [style=none] (0) at (-0.5, 1) {};\n"
+@"		\\node [style=none] (1) at (0.5, 1) {};\n"
+@"		\\node [style=none] (2) at (-1.5, -1) {};\n"
+@"		\\node [style=none] (3) at (-0.5, -1) {};\n"
+@"		\\node [style=none] (4) at (0.5, -1) {};\n"
+@"		\\node [style=none] (5) at (1.5, -1) {};\n"
+@"	\\end{pgfonlayer}\n"
+@"	\\begin{pgfonlayer}{edgelayer}\n"
+@"		\\draw (3.center) to (2.center);\n"
+@"		\\draw [in=90, out=90, looseness=2.00] (4.center) to (3.center);\n"
+@"		\\draw (5.center) to (4.center);\n"
+@"		\\draw [in=270, out=90, looseness=0.75] (2.center) to (0.center);\n"
+@"		\\draw [in=90, out=-90, looseness=0.75] (1.center) to (5.center);\n"
+@"		\\draw (0.center) to (1.center);\n"
+@"	\\end{pgfonlayer}\n"
+@"\\end{tikzpicture}\n";
+
+@implementation TikzShape
+
+- (id)initWithTikzFile:(NSString*)file {
+	[super init];
+	
+	NSString *tikz = [NSString stringWithContentsOfFile:file
+											   encoding:NSUTF8StringEncoding
+												  error:NULL];
+	if (tikz == nil) return nil;
+	
+	TikzGraphAssembler *ass = [[TikzGraphAssembler alloc] init];
+	[ass parseTikz:tikz];
+	
+	Graph *graph = [ass graph];
+    [ass release];
+	if (graph == nil) return nil;
+	
+	NSRect graphBounds = ([graph hasBoundingBox]) ? [graph boundingBox] : [graph bounds];
+	
+	float sz = 0.5f;
+	
+	// the "screen" coordinate space fits in the shape bounds
+	Transformer *t = [Transformer transformer];
+	float width_ratio = (2*sz) / graphBounds.size.width;
+	float height_ratio = (2*sz) / graphBounds.size.height;
+	[t setScale:MIN(width_ratio, height_ratio)];
+	NSRect bds = [t rectToScreen:graphBounds];
+	NSPoint shift = NSMakePoint(-NSMidX(bds),
+								-NSMidY(bds));
+	[t setOrigin:shift];
+	[graph applyTransformer:t];
+	paths = [[graph pathCover] retain];
+	
+	return self;
+}
+
+
+@end
+
+// vi:ft=objc:ts=4:noet:sts=4:sw=4