Add support for pdfium

common/comic.cpp

@@ -769,7 +769,7 @@ bool PDFComic::load(const QString & path, const ComicDB & comic)
 
 void PDFComic::process()
 {
-#ifdef Q_OS_MAC
+#if defined Q_OS_MAC && defined USE_PDFKIT
 	pdfComic = new MacOSXPDFComic();
 	if(!pdfComic->openComic(_path))
 	{
@@ -777,8 +777,15 @@ void PDFComic::process()
 		emit errorOpening();
 		return;
 	}
+#elif defined USE_PDFIUM
+	pdfComic = new PdfiumComic();
+	if(!pdfComic->openComic(_path))
+	{
+		delete pdfComic;
+		emit errorOpening();
+		return;
+	}
 #else
-
 	pdfComic = Poppler::Document::load(_path);
 	if (!pdfComic)
 	{
@@ -840,12 +847,15 @@ void PDFComic::process()
 
 void PDFComic::renderPage(int page)
 {
-#ifdef Q_OS_MAC
+#if defined Q_OS_MAC && defined USE_PDFKIT
 	QImage img = pdfComic->getPage(page);
 	if(!img.isNull())
 	{
 		pdfComic->releaseLastPageData();
-
+#elif defined USE_PDFIUM
+	QImage img = pdfComic->getPage(page);
+	if(!img.isNull())
+	{
 #else
 	Poppler::Page* pdfpage = pdfComic->page(page);
 	if (pdfpage)
@@ -1080,4 +1090,4 @@ void comic_pages_sort(QList<QString> & pageNames, YACReaderPageSortingMode sorti
 			std::sort(pageNames.begin(), pageNames.end());
 			break;
 	}
-}
+}

common/comic.h

@@ -154,14 +154,16 @@ class PDFComic : public Comic
 	Q_OBJECT
 	
 	private:
+		
 		//pdf
-#ifdef Q_OS_MAC
-			MacOSXPDFComic * pdfComic;
-#else
+		#if defined Q_OS_MAC && defined USE_PDFKIT
+		MacOSXPDFComic * pdfComic;
+		#elif defined USE_PDFIUM
+		PdfiumComic * pdfComic;
+		#else
 		Poppler::Document * pdfComic;
-#endif
+		#endif
 		void renderPage(int page);
-
 		//void run();
 	
 	public:
@@ -183,4 +185,4 @@ class FactoryComic
 	public:
 		static Comic * newComic(const QString & path);
 };
-#endif
+#endif

common/pdf_comic.cpp

@@ -0,0 +1,81 @@
+#include "comic.h"
+#include "pdf_comic.h"
+#ifdef USE_PDFIUM
+PdfiumComic::PdfiumComic()
+{
+	FPDF_InitLibrary();
+}
+
+PdfiumComic::~PdfiumComic()
+{
+	if (doc)
+	{
+		FPDF_CloseDocument(doc);
+	}
+	FPDF_DestroyLibrary();
+}
+
+bool PdfiumComic::openComic(const QString & path)
+{
+	doc = FPDF_LoadDocument(path.toStdString().c_str(), NULL);
+	if (doc)
+	{
+		return true;
+	}
+	else
+	{
+		qDebug() << FPDF_GetLastError();
+		return false;
+	}
+}
+
+void PdfiumComic::closeComic()
+{
+	FPDF_CloseDocument(doc);
+}
+
+unsigned int PdfiumComic::numPages()
+{
+	if (doc)
+	{
+		return FPDF_GetPageCount(doc);
+	}
+	else
+	{
+		return 0; //-1?
+	}
+}
+
+QImage PdfiumComic::getPage(const int page)
+{
+	QTime time;
+	time.start();
+	QImage image;
+	FPDF_PAGE pdfpage;
+	FPDF_BITMAP bitmap;
+	
+	pdfpage = FPDF_LoadPage(doc, page);
+	
+	if (!pdfpage)
+	{
+		qDebug() << FPDF_GetLastError();
+		return QImage();
+	}
+	
+	//TODO: make target DPI configurable
+	double width = (FPDF_GetPageWidth(pdfpage)/72)*150;
+	double height = (FPDF_GetPageHeight(pdfpage)/72)*150;
+	
+	image = QImage(width, height, QImage::Format_RGB888);// QImage::Format_RGBX8888);
+	image.fill(0xFFFFFFFF);
+
+	bitmap = FPDFBitmap_CreateEx(image.width(), image.height(), FPDFBitmap_BGR, image.scanLine(0), image.bytesPerLine());
+	//TODO: make render flags costumizable
+	FPDF_RenderPageBitmap(bitmap, pdfpage, 0,0, image.width(), image.height(), 0, (FPDF_REVERSE_BYTE_ORDER | FPDF_LCD_TEXT));
+	FPDFBitmap_Destroy(bitmap);
+	FPDF_ClosePage(pdfpage);
+	
+	qDebug()<< "Render time:" << time.elapsed();
+	return image;
+}
+#endif //USE_PDFIUM

common/pdf_comic.h

@@ -4,24 +4,41 @@
 #include <QObject>
 #include <QImage>
 
-#ifdef Q_OS_MAC
+#if defined Q_OS_MAC && defined USE_PDFKIT
 class MacOSXPDFComic
 {
-public:
-    MacOSXPDFComic();
-    ~MacOSXPDFComic();
-    bool openComic(const QString & path);
-    void closeComic();
-    unsigned int numPages();
-    QImage getPage(const int page);
-    void releaseLastPageData();
-private:
-    void * document;
-    void * lastPageData;
-};
+	public:
+		MacOSXPDFComic();
+		~MacOSXPDFComic();
+		bool openComic(const QString & path);
+		void closeComic();
+		unsigned int numPages();
+		QImage getPage(const int page);
+		void releaseLastPageData();
+	
+	private:
+		void * document;
+		void * lastPageData;
+	};
 
+#elif defined USE_PDFIUM
+#include <fpdfview.h>
+
+class PdfiumComic
+{
+	public:
+		PdfiumComic();
+		~PdfiumComic();
+		bool openComic(const QString & path);
+		void closeComic();
+		unsigned int numPages();
+		QImage getPage(const int page);
+	
+	private:
+		FPDF_LIBRARY_CONFIG config;
+		FPDF_DOCUMENT doc;
+};
 #else
 #include "poppler-qt5.h"
 #endif // Q_OS_MAC
-
 #endif // PDF_COMIC_H