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//
// 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
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