1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
//
// PreviewController.m
// 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 "PreviewController.h"
#import "AppDelegate.h"
#import "PreambleController.h"
#import <Quartz/Quartz.h>
@implementation PreviewController
static PreviewController *preview = nil;
- (id)initWithWindowNibName:(NSString*)nib
preambleController:(PreambleController*)pc
tempDir:(NSString*)dir {
[super initWithWindowNibName:nib];
tempDir = [dir copy];
typesetCount = 0;
preambleController = pc;
latexLock = [[NSLock alloc] init];
return self;
}
- (void)runLatex:(id)tikz {
// Only build one tex file at a time, so we don't get funky results.
//[latexLock lock];
[progressIndicator startAnimation:self];
int fnum = typesetCount++;
NSString *tex = [NSString stringWithFormat:@"%@%@%@",
[preambleController currentPreamble],
tikz,
[preambleController currentPostamble]];
NSString *texFile = [NSString stringWithFormat:@"%@/tikzit_%d.tex", tempDir, fnum];
NSString *pdfFile = [NSString stringWithFormat:@"%@/tikzit_%d.pdf", tempDir, fnum];
[tex writeToFile:texFile atomically:NO encoding:NSUTF8StringEncoding error:NULL];
// We run pdflatex in a bash shell to have easy access to the setup from unix-land
NSTask *latexTask = [[NSTask alloc] init];
[latexTask setCurrentDirectoryPath:tempDir];
[latexTask setLaunchPath:@"/bin/bash"];
// This assumes the user has $PATH set up to find pdflatex in either .profile
// or .bashrc. This should be improved to take other path setups into account
// and to be customisable.
NSString *latexCmd =
[NSString stringWithFormat:
@"if [ -e ~/.profile ]; then source ~/.profile; fi\n"
@"if [ -e ~/.bashrc ]; then source ~/.bashrc; fi\n"
@"pdflatex -interaction=nonstopmode -output-format=pdf -halt-on-error '%@'\n",
texFile];
//NSLog(@"Telling bash: %@", latexCmd);
NSPipe *pout = [NSPipe pipe];
NSPipe *pin = [NSPipe pipe];
[latexTask setStandardOutput:pout];
[latexTask setStandardInput:pin];
NSFileHandle *latexIn = [pin fileHandleForWriting];
NSFileHandle *latexOut = [pout fileHandleForReading];
[latexTask launch];
[latexIn writeData:[latexCmd dataUsingEncoding:NSUTF8StringEncoding]];
[latexIn closeFile];
NSData *data = [latexOut readDataToEndOfFile];
NSString *str = [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding];
[latexTask waitUntilExit];
if ([latexTask terminationStatus] != 0) {
[errorTextView setHidden:YES];
[errorText setString:[@"\nAN ERROR HAS OCCURRED, PDFLATEX SAID:\n\n" stringByAppendingString:str]];
[errorTextView setHidden:NO];
} else {
[errorText setString:@""];
[errorTextView setHidden:YES];
data = [NSData dataWithContentsOfFile:pdfFile];
PDFDocument *doc = [[PDFDocument alloc] initWithData:data];
// pad the PDF by a couple of pixels
if ([doc pageCount] >= 1) {
PDFPage *page = [doc pageAtIndex:0];
NSRect box = [page boundsForBox:kPDFDisplayBoxCropBox];
box.origin.x -= 2.0f;
box.origin.y -= 2.0f;
box.size.width += 4.0f;
box.size.height += 4.0f;
[page setBounds:box forBox:kPDFDisplayBoxCropBox];
[page setBounds:box forBox:kPDFDisplayBoxMediaBox];
}
[pdfView setDocument:doc];
}
[progressIndicator stopAnimation:self];
//[latexLock unlock];
}
- (void)buildTikz:(NSString*)tikz {
// Build on a separate thread to keep the interface responsive.
[NSThread detachNewThreadSelector:@selector(runLatex:) toTarget:self withObject:tikz];
}
+ (void)setDefaultPreviewController:(PreviewController*)pc {
preview = pc;
}
+ (PreviewController*)defaultPreviewController {
return preview;
}
@end
|
