From b10b27864a2ea4f4a0f261b311d024b7d38ea793 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20=C3=81ngel=20San=20Mart=C3=ADn?=
 <luisangelsm@gmail.com>
Date: Mon, 15 Jul 2013 10:20:48 +0200
Subject: [PATCH] a?adido c?lculo de secciones para optimizar la extracci?n de
 c?mics

---
 YACReader/comic.cpp                       | 118 +++++++++++++++++++++-
 YACReader/comic.h                         |   5 +-
 compressed_archive/compressed_archive.cpp |   8 +-
 compressed_archive/compressed_archive.h   |   2 +-
 4 files changed, 125 insertions(+), 8 deletions(-)

diff --git a/YACReader/comic.cpp b/YACReader/comic.cpp
index 7a3d21de..1a61282d 100644
--- a/YACReader/comic.cpp
+++ b/YACReader/comic.cpp
@@ -240,7 +240,12 @@ QList<QString> FileComic::filter(const QList<QString> & src)
 }
 void FileComic::fileExtracted(int index, const QByteArray & rawData)
 {
+	QFile f("c:/temp/out2.txt");
+	f.open(QIODevice::Append);
+	QTextStream out(&f);
 	int sortedIndex = _fileNames.indexOf(_order.at(index));
+	out << sortedIndex << " , ";
+	f.close();
 	if(sortedIndex == -1)
 		return;
 	_pages[sortedIndex] = rawData;
@@ -248,6 +253,104 @@ void FileComic::fileExtracted(int index, const QByteArray & rawData)
 	emit imageLoaded(sortedIndex,_pages[sortedIndex]);
 }
 
+QList<QVector<quint32> > FileComic::getSections(int & sectionIndex)
+{
+	QVector<quint32> sortedIndexes;
+	foreach(QString name, _fileNames)
+	{
+		sortedIndexes.append(_order.indexOf(name));
+	}
+	QList<QVector <quint32> > sections;
+	quint32 previous = 0;
+	sectionIndex = -1;
+	int sectionCount = 0;
+	QVector <quint32> section;
+	int idx = 0;
+	int realIdx;
+	foreach(quint32 i, sortedIndexes)
+	{
+		
+		if(_firstPage == idx)
+		{
+			sectionIndex = sectionCount;
+			realIdx  = i;
+		}
+		if(previous <= i)
+		{
+			//out << "idx : " << i << endl;
+			section.append(i);
+			previous = i;
+		}
+		else
+		{
+			if(sectionIndex == sectionCount) //found
+			{
+				if(section.indexOf(realIdx)!=0)
+				{
+					QVector <quint32> section1;
+					QVector <quint32> section2;
+					foreach(quint32 si,section)
+					{
+						if(si<realIdx)
+							section1.append(si);
+						else
+							section2.append(si);
+					}
+					sectionIndex++;
+					sections.append(section1);
+					sections.append(section2);
+					//out << "SPLIT" << endl;
+
+				}
+				else
+				{
+					sections.append(section);
+				}
+			}
+			else
+				sections.append(section);
+
+			section = QVector <quint32> ();
+			//out << "---------------" << endl;
+			section.append(i);
+			//out << "idx : " << i << endl;
+			previous = i;
+			sectionCount++;
+		}
+
+		idx++;
+	}
+				if(sectionIndex == sectionCount) //found
+			{
+				if(section.indexOf(realIdx)!=0)
+				{
+					QVector <quint32> section1;
+					QVector <quint32> section2;
+					foreach(quint32 si,section)
+					{
+						if(si<realIdx)
+							section1.append(si);
+						else
+							section2.append(si);
+					}
+					sectionIndex++;
+					sections.append(section1);
+					sections.append(section2);
+					//out << "SPLIT" << endl;
+
+				}
+				else
+				{
+					sections.append(section);
+				}
+			}
+			else
+				sections.append(section);
+
+	//out << "se han encontrado : " << sections.count() << " sectionIndex : " << sectionIndex << endl;
+	return sections;
+}
+
 void FileComic::process()
 {
 	QFile f("c:/temp/out.txt");
@@ -290,8 +393,17 @@ void FileComic::process()
 
 	out << "tiempo en ordenar : " << myTimer.elapsed() << endl;
 
-	QList<QByteArray> allData = archive.getAllData(this);
-	
+	_firstPage = 0;
+	_index = 0;
+
+	int sectionIndex;
+	QList<QVector <quint32> > sections = getSections(sectionIndex);
+
+	for(int i = sectionIndex; i<sections.count() ; i++)
+		archive.getAllData(sections.at(i),this);
+	for(int i = 0; i<sectionIndex; i++)
+		archive.getAllData(sections.at(i),this);
+	//archive.getAllData(QVector<quint32>(),this);
 	out << "tiempo en obtener datos : " << myTimer.elapsed() << endl;
 	/*
 	foreach(QString name,_fileNames)
@@ -303,7 +415,7 @@ void FileComic::process()
 		emit imageLoaded(sortedIndex,_pages[sortedIndex]);
 	}*/
 
-	out << "tiempo en copiar datos : " << myTimer.elapsed() << endl;
+	out << "--tiempo en copiar datos : " << myTimer.elapsed() << endl;
 	f.close();
 	emit imagesLoaded();
 }
diff --git a/YACReader/comic.h b/YACReader/comic.h
index 2ee53392..e2811efd 100644
--- a/YACReader/comic.h
+++ b/YACReader/comic.h
@@ -29,8 +29,8 @@
 
 		int _cfi;
 
-		
-		
+		//open the comic at this point
+		int _firstPage;
 
 		bool _isPDF;
 	public:
@@ -86,6 +86,7 @@
 		Q_OBJECT
 	private:
 	QList<QString> filter(const QList<QString> & src);
+	QList<QVector<quint32> > getSections(int & sectionIndex);
 	public:
 		FileComic();
 		FileComic(const QString & path);
diff --git a/compressed_archive/compressed_archive.cpp b/compressed_archive/compressed_archive.cpp
index 623020fb..0c55c08d 100644
--- a/compressed_archive/compressed_archive.cpp
+++ b/compressed_archive/compressed_archive.cpp
@@ -166,14 +166,18 @@ int CompressedArchive::getNumFiles()
     szInterface->archive->GetNumberOfItems(&numItems);
 	return numItems;
 }
-QList<QByteArray> CompressedArchive::getAllData(ExtractDelegate * delegate)
+QList<QByteArray> CompressedArchive::getAllData(const QVector<quint32> & indexes, ExtractDelegate * delegate)
 {
 	CArchiveExtractCallback *extractCallbackSpec = new CArchiveExtractCallback(true,delegate);
 	CMyComPtr<IArchiveExtractCallback> extractCallback(extractCallbackSpec);
 	extractCallbackSpec->Init(szInterface->archive, L""); // second parameter is output folder path
 	extractCallbackSpec->PasswordIsDefined = false;
 
-	HRESULT result = szInterface->archive->Extract(NULL, -1, false, extractCallback);
+	HRESULT result;
+	if(indexes.isEmpty())
+		result = szInterface->archive->Extract(NULL, -1, false, extractCallback);
+	else
+		result = szInterface->archive->Extract(indexes.data(), indexes.count(), false, extractCallback);
 	if (result != S_OK)
 	{
 		qDebug() << "Extract Error" << endl;
diff --git a/compressed_archive/compressed_archive.h b/compressed_archive/compressed_archive.h
index 4d526029..23935753 100644
--- a/compressed_archive/compressed_archive.h
+++ b/compressed_archive/compressed_archive.h
@@ -36,7 +36,7 @@ signals:
     
 public slots:
 	int getNumFiles();
-	QList<QByteArray> getAllData(ExtractDelegate * delegate = 0);
+	QList<QByteArray> getAllData(const QVector<quint32> & indexes, ExtractDelegate * delegate = 0);
 	QByteArray getRawDataAtIndex(int index);
 	QList<QString> getFileNames();
 private: