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-rw-r--r--tikzit-old/src/gtk/PreviewRenderer.m250
1 files changed, 0 insertions, 250 deletions
diff --git a/tikzit-old/src/gtk/PreviewRenderer.m b/tikzit-old/src/gtk/PreviewRenderer.m
deleted file mode 100644
index 28113d6..0000000
--- a/tikzit-old/src/gtk/PreviewRenderer.m
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * Copyright 2011 Alex Merry <dev@randomguy3.me.uk>
- *
- * This program 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 2 of
- * the License, or (at your option) any later version.
- *
- * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#import "PreviewRenderer.h"
-
-#import "CairoRenderContext.h"
-#import "Configuration.h"
-#import "Preambles.h"
-#import "TikzDocument.h"
-
-@implementation PreviewRenderer
-
-@synthesize preambles, document;
-
-- (id) init {
- [self release];
- return nil;
-}
-
-- (id) initWithPreambles:(Preambles*)p config:(Configuration*)c {
- self = [super init];
-
- if (self) {
- document = nil;
- config = [c retain];
- preambles = [p retain];
- pdfDocument = NULL;
- pdfPage = NULL;
- }
-
- return self;
-}
-
-- (void) dealloc {
- [document release];
- [config release];
- [preambles release];
-
- if (pdfDocument) {
- g_object_unref (pdfDocument);
- pdfDocument = NULL;
- }
- if (pdfPage) {
- g_object_unref (pdfPage);
- pdfPage = NULL;
- }
-
- [super dealloc];
-}
-
-- (BOOL) update {
- NSError *error = nil;
- BOOL result = [self updateWithError:&error];
- if (error) {
- logError (error, @"Could not update preview");
- if ([error code] == TZ_ERR_TOOL_FAILED) {
- NSLog (@"Output: %@", [[error userInfo] objectForKey:TZToolOutputErrorKey]);
- }
- }
- return result;
-}
-
-- (BOOL) updateWithError:(NSError**)error {
- if (document == nil) {
- if (error) {
- *error = [NSError errorWithMessage:@"No document given" code:TZ_ERR_BADSTATE];
- }
- if (pdfDocument) {
- g_object_unref (pdfDocument);
- pdfDocument = NULL;
- }
- if (pdfPage) {
- g_object_unref (pdfPage);
- pdfPage = NULL;
- }
- return NO;
- }
-
- NSString *tex = [preambles buildDocumentForTikz:[document tikz]];
-
- NSString *tempDir = [[NSFileManager defaultManager] createTempDirectoryWithError:error];
- if (!tempDir) {
- if (error) {
- *error = [NSError errorWithMessage:@"Could not create temporary directory" code:TZ_ERR_IO cause:*error];
- }
- return NO;
- }
-
- // write tex code to temporary file
- NSString *texFile = [NSString stringWithFormat:@"%@/tikzit.tex", tempDir];
- NSString *pdfFile = [NSString stringWithFormat:@"file://%@/tikzit.pdf", tempDir];
- [tex writeToFile:texFile atomically:YES];
-
- NSTask *latexTask = [[NSTask alloc] init];
- [latexTask setCurrentDirectoryPath:tempDir];
-
- // GNUStep is clever enough to use PATH
- NSString *path = [config stringEntry:@"pdflatex"
- inGroup:@"Previews"
- withDefault:@"pdflatex"];
- [latexTask setLaunchPath:path];
-
- NSArray *args = [NSArray arrayWithObjects:
- @"-fmt=latex",
- @"-output-format=pdf",
- @"-interaction=nonstopmode",
- @"-halt-on-error",
- texFile,
- nil];
- [latexTask setArguments:args];
-
- NSPipe *pout = [NSPipe pipe];
- [latexTask setStandardOutput:pout];
-
- NSFileHandle *latexOut = [pout fileHandleForReading];
-
- BOOL success = NO;
-
- NS_DURING {
- [latexTask launch];
- [latexTask waitUntilExit];
- } NS_HANDLER {
- NSLog(@"Failed to run '%@'; error was: %@", path, [localException reason]);
- (void)localException;
- if (error) {
- NSString *desc = [NSString stringWithFormat:@"Failed to run '%@'", path];
- NSMutableDictionary *errorDetail = [NSMutableDictionary dictionaryWithCapacity:2];
- [errorDetail setValue:desc forKey:NSLocalizedDescriptionKey];
- *error = [NSError errorWithDomain:TZErrorDomain code:TZ_ERR_IO userInfo:errorDetail];
- }
-
- // remove all temporary files
- [[NSFileManager defaultManager] removeFileAtPath:tempDir handler:NULL];
- [latexTask release];
-
- return NO;
- } NS_ENDHANDLER
-
- if ([latexTask terminationStatus] != 0) {
- if (error) {
- NSData *data = [latexOut readDataToEndOfFile];
- NSString *str = [[NSString alloc] initWithData:data
- encoding:NSUTF8StringEncoding];
- NSMutableDictionary *errorDetail = [NSMutableDictionary dictionaryWithCapacity:2];
- [errorDetail setValue:@"Generating a PDF file with pdflatex failed" forKey:NSLocalizedDescriptionKey];
- [errorDetail setValue:str forKey:TZToolOutputErrorKey];
- *error = [NSError errorWithDomain:TZErrorDomain code:TZ_ERR_TOOL_FAILED userInfo:errorDetail];
- [str release];
- }
- } else {
- // load pdf document
- GError* gerror = NULL;
- pdfDocument = poppler_document_new_from_file([pdfFile UTF8String], NULL, &gerror);
- if (!pdfDocument) {
- if (error) {
- *error = [NSError errorWithMessage:[NSString stringWithFormat:@"Could not load PDF document", pdfFile]
- code:TZ_ERR_IO
- cause:[NSError errorWithGError:gerror]];
- }
- g_error_free(gerror);
- } else {
- pdfPage = poppler_document_get_page(pdfDocument, 0);
- if(!pdfPage) {
- if (error) {
- *error = [NSError errorWithMessage:@"Could not open first page of PDF document"
- code:TZ_ERR_OTHER];
- }
- g_object_unref(pdfDocument);
- } else {
- success = YES;
- }
- }
- }
-
- // remove all temporary files
- [[NSFileManager defaultManager] removeFileAtPath:tempDir handler:NULL];
- [latexTask release];
-
- return success;
-}
-
-- (BOOL) isValid {
- return pdfPage ? YES : NO;
-}
-
-- (double) width {
- double w = 0.0;
- if (pdfPage)
- poppler_page_get_size(pdfPage, &w, NULL);
- return w;
-}
-
-- (double) height {
- double h = 0.0;
- if (pdfPage)
- poppler_page_get_size(pdfPage, NULL, &h);
- return h;
-}
-
-- (void) renderWithContext:(id<RenderContext>)c onSurface:(id<Surface>)surface {
- if (document != nil && pdfPage) {
- CairoRenderContext *context = (CairoRenderContext*)c;
-
- double w = 0.0;
- double h = 0.0;
- poppler_page_get_size(pdfPage, &w, &h);
- if (w==0) w = 1.0;
- if (h==0) h = 1.0;
-
- double scale = ([surface height] / h) * 0.95;
- if (w * scale > [surface width]) scale = [surface width] / w;
- [[surface transformer] setScale:scale];
-
- NSPoint origin;
- w *= scale;
- h *= scale;
- origin.x = ([surface width] - w) / 2;
- origin.y = ([surface height] - h) / 2;
-
- [[surface transformer] setOrigin:origin];
-
- [context saveState];
- [context applyTransform:[surface transformer]];
-
- // white-out
- [context paintWithColor:WhiteRColor];
-
- poppler_page_render (pdfPage, [context cairoContext]);
-
- [context restoreState];
- }
-}
-
-@end
-
-// vim:ft=objc:ts=8:et:sts=4:sw=4
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