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https://github.com/YACReader/yacreader
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118 lines
3.5 KiB
Plaintext
118 lines
3.5 KiB
Plaintext
#include "pdf_comic.h"
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#import <AppKit/AppKit.h>
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#import <Foundation/Foundation.h>
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#import <ApplicationServices/ApplicationServices.h>
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#include "QsLog.h"
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#include "QsLogDest.h"
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MacOSXPDFComic::MacOSXPDFComic()
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{
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}
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MacOSXPDFComic::~MacOSXPDFComic()
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{
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CGPDFDocumentRelease((CGPDFDocumentRef)document);
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}
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bool MacOSXPDFComic::openComic(const QString &path)
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{
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CFURLRef pdfFileUrl;
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CFStringRef str;
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str=CFStringCreateWithCString( kCFAllocatorDefault,path.toUtf8().data(),kCFStringEncodingUTF8);
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pdfFileUrl=CFURLCreateWithFileSystemPath( kCFAllocatorDefault,str,kCFURLPOSIXPathStyle,true );
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CGPDFDocumentRef pdf = CGPDFDocumentCreateWithURL((CFURLRef)pdfFileUrl);
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document = pdf;
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CFRelease(str);
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CFRelease(pdfFileUrl);
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return true;
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}
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void MacOSXPDFComic::closeComic()
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{
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//CGPDFDocumentRelease((CGPDFDocumentRef)document);
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}
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unsigned int MacOSXPDFComic::numPages()
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{
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return (int)CGPDFDocumentGetNumberOfPages((CGPDFDocumentRef)document);
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}
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QImage MacOSXPDFComic::getPage(const int pageNum)
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{
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CGPDFPageRef page = CGPDFDocumentGetPage((CGPDFDocumentRef)document, pageNum+1);
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// Changed this line for the line above which is a generic line
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//CGPDFPageRef page = [self getPage:page_number];
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CGRect pageRect = CGPDFPageGetBoxRect(page, kCGPDFMediaBox);
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int width = 1200;
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//NSLog(@"-----%f",pageRect.size.width);
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CGFloat pdfScale = float(width)/pageRect.size.width;
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pageRect.size = CGSizeMake(pageRect.size.width*pdfScale, pageRect.size.height*pdfScale);
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pageRect.origin = CGPointZero;
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CGColorSpaceRef genericColorSpace = CGColorSpaceCreateDeviceRGB();
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CGContextRef bitmapContext = CGBitmapContextCreate(NULL,
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pageRect.size.width,
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pageRect.size.height,
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8, 0,
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genericColorSpace,
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kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Little
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);
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CGContextSetInterpolationQuality(bitmapContext, kCGInterpolationHigh);
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CGContextSetRenderingIntent(bitmapContext, kCGRenderingIntentDefault);
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CGContextSetRGBFillColor( bitmapContext, 1.0, 1.0, 1.0, 1.0 );
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CGContextFillRect( bitmapContext, CGContextGetClipBoundingBox( bitmapContext ));
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//CGContextTranslateCTM( bitmapContext, 0, pageRect.size.height );
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//CGContextScaleCTM( bitmapContext, 1.0, -1.0 );
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CGContextConcatCTM(bitmapContext, CGAffineTransformMakeScale(pdfScale, pdfScale));
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/*CGAffineTransform pdfXfm = CGPDFPageGetDrawingTransform( page, kCGPDFMediaBox, CGRectMake(pageRect.origin.x, pageRect.origin.y, pageRect.size.width, pageRect.size.height) , 0, true );
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*/
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//CGContextConcatCTM( bitmapContext, pdfXfm );
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CGContextDrawPDFPage(bitmapContext, page);
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CGImageRef image = CGBitmapContextCreateImage(bitmapContext);
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QImage qtImage;
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CFDataRef dataRef = CGDataProviderCopyData(CGImageGetDataProvider(image));
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lastPageData = (void *)dataRef;
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const uchar *bytes = (const uchar *)CFDataGetBytePtr(dataRef);
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qtImage = QImage(bytes, pageRect.size.width, pageRect.size.height, QImage::Format_ARGB32);
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CGImageRelease(image);
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//CFRelease(dataRef);
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CGContextRelease(bitmapContext);
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//CGPDFPageRelease(page);
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CGColorSpaceRelease(genericColorSpace);
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return qtImage;
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}
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void MacOSXPDFComic::releaseLastPageData()
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{
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CFRelease((CFDataRef)lastPageData);
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}
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