embedded fonts processing (in progress)

jni/Android.mk

@@ -105,6 +105,7 @@ LOCAL_SRC_FILES               := \
 	NativeFormats/fbreader/src/formats/css/StringInputStream.cpp \
 	NativeFormats/fbreader/src/formats/css/StyleSheetParser.cpp \
 	NativeFormats/fbreader/src/formats/css/StyleSheetTable.cpp \
+	NativeFormats/fbreader/src/formats/css/StyleSheetUtil.cpp \
 	NativeFormats/fbreader/src/formats/html/HtmlBookReader.cpp \
 	NativeFormats/fbreader/src/formats/html/HtmlDescriptionReader.cpp \
 	NativeFormats/fbreader/src/formats/html/HtmlEntityCollection.cpp \

jni/NativeFormats/fbreader/src/formats/css/FontMap.cpp

@@ -39,6 +39,21 @@ void FontEntry::addFile(const std::string &weight, const std::string &style, con
 	}
 }
 
+void FontEntry::merge(const FontEntry &fontEntry) {
+	if (!fontEntry.Normal.isNull()) {
+		Normal = fontEntry.Normal;
+	}
+	if (!fontEntry.Bold.isNull()) {
+		Bold = fontEntry.Bold;
+	}
+	if (!fontEntry.Italic.isNull()) {
+		Italic = fontEntry.Italic;
+	}
+	if (!fontEntry.BoldItalic.isNull()) {
+		BoldItalic = fontEntry.BoldItalic;
+	}
+}
+
 static bool compareStringPtrs(shared_ptr<std::string> str0, shared_ptr<std::string> str1) {
 	return str0.isNull() ? str1.isNull() : (!str1.isNull() && *str0 == *str1);
 }
@@ -55,16 +70,55 @@ bool FontEntry::operator != (const FontEntry &other) const {
 	return !operator ==(other);
 }
 
-bool FontMap::operator == (const FontMap &other) const {
-	return myMap == other.myMap;
-}
-
-bool FontMap::operator != (const FontMap &other) const {
-	return !operator ==(other);
-}
-
-void FontMap::appendFontFace(const std::string &family, const std::string &weight, const std::string &style, const std::string &path) {
+void FontMap::append(const std::string &family, const std::string &weight, const std::string &style, const std::string &path) {
 	const ZLFile fontFile(path);
-	myMap[family].addFile(weight, style, fontFile.path());
-	ZLLogger::Instance().println("FONT", family + " => " + fontFile.path());
+	shared_ptr<FontEntry> entry = myMap[family];
+	if (entry.isNull()) {
+		entry = new FontEntry();
+		myMap[family] = entry;
+	}
+	entry->addFile(weight, style, fontFile.path());
+	ZLLogger::Instance().println("FONT", family + "," + weight + "," + style + " => " + fontFile.path());
+}
+
+void FontMap::merge(const FontMap &fontMap) {
+	for (std::map<std::string,shared_ptr<FontEntry> >::const_iterator it = fontMap.myMap.begin(); it != fontMap.myMap.end(); ++it) {
+		if (!it->second.isNull()) {
+			shared_ptr<FontEntry> entry = myMap[it->first];
+			if (entry.isNull()) {
+				entry = new FontEntry();
+				myMap[it->first] = entry;
+			}
+			entry->merge(*it->second);
+		}
+	}
+}
+
+shared_ptr<FontEntry> FontMap::get(const std::string &family) {
+	return myMap[family];
+}
+
+std::string FontMap::put(const std::string &family, shared_ptr<FontEntry> entry) {
+	shared_ptr<FontEntry> existing = myMap[family];
+	if (existing.isNull() || *existing == *entry) {
+		myMap[family] = entry;
+		return family;
+	}
+
+	for (std::map<std::string,shared_ptr<FontEntry> >::const_iterator it = myMap.begin(); it != myMap.end(); ++it) {
+		if (*it->second == *entry) {
+			return it->first;
+		}
+	}
+
+	for (int i = 1; i < 1000; ++i) {
+		std::string indexed = family + "#";
+		ZLStringUtil::appendNumber(indexed, i);
+		if (myMap[indexed].isNull()) {
+			myMap[indexed] = entry;
+			return indexed;
+		}
+	}
+
+	return std::string();
 }

jni/NativeFormats/fbreader/src/formats/css/FontMap.h

@@ -29,6 +29,7 @@ class FontEntry {
 
 public:
 	void addFile(const std::string &weight, const std::string &style, const std::string &filePath);
+	void merge(const FontEntry &fontEntry);
 
 	bool operator == (const FontEntry &other) const;
 	bool operator != (const FontEntry &other) const;
@@ -43,13 +44,13 @@ public:
 class FontMap {
 
 public:
-	bool operator == (const FontMap &other) const;
-	bool operator != (const FontMap &other) const;
-
-	void appendFontFace(const std::string &family, const std::string &weight, const std::string &style, const std::string &path);
+	void append(const std::string &family, const std::string &weight, const std::string &style, const std::string &path);
+	void merge(const FontMap &fontMap);
+	std::string put(const std::string &family, shared_ptr<FontEntry> entry);
+	shared_ptr<FontEntry> get(const std::string &family);
 
 private:
-	std::map<std::string,FontEntry> myMap;
+	std::map<std::string,shared_ptr<FontEntry> > myMap;
 };
 
 #endif /* __FONTMAP_H__ */

jni/NativeFormats/fbreader/src/formats/css/StyleSheetParser.cpp

@@ -26,6 +26,7 @@
 #include <ZLLogger.h>
 
 #include "StyleSheetParser.h"
+#include "StyleSheetUtil.h"
 #include "StringInputStream.h"
 #include "CSSInputStream.h"
 #include "../util/MiscUtil.h"
@@ -125,11 +126,9 @@ std::string StyleSheetParser::url2FullPath(const std::string &url) const {
 			ZLStringUtil::stringEndsWith(path, ")")) {
 		path = path.substr(4, path.size() - 5);
 	}
-	if (path.size() > 2 && path[0] == path[path.size() - 1]) {
-		if (path[0] == '\'' || path[0] == '"') {
+	if (path.size() > 1 && (path[0] == '"' || path[0] == '\'') && path[0] == path[path.size() - 1]) {
 		path = path.substr(1, path.size() - 2);
 	}
-	}
 	return myPathPrefix + MiscUtil::decodeHtmlURL(path);
 }
 
@@ -221,9 +220,13 @@ void StyleSheetParser::processWord(const std::string &word) {
 			myMap[myAttributeName].clear();
 			break;
 		case ATTRIBUTE_VALUE:
-			myMap[myAttributeName] = word;
+		{
+			std::string stripped = word;
+			ZLStringUtil::stripWhiteSpaces(stripped);
+			myMap[myAttributeName] = stripped;
 			break;
 		}
+	}
 }
 
 StyleSheetSingleStyleParser::StyleSheetSingleStyleParser(const std::string &pathPrefix) : StyleSheetParser(pathPrefix) {
@@ -237,7 +240,7 @@ shared_ptr<ZLTextStyleEntry> StyleSheetSingleStyleParser::parseSingleEntry(const
 	return control;
 }
 
-StyleSheetMultiStyleParser::StyleSheetMultiStyleParser(const std::string &pathPrefix, FontMap &fontMap) : StyleSheetParser(pathPrefix), myFontMap(fontMap) {
+StyleSheetMultiStyleParser::StyleSheetMultiStyleParser(const std::string &pathPrefix, shared_ptr<FontMap> fontMap) : StyleSheetParser(pathPrefix), myFontMap(fontMap.isNull() ? new FontMap() : fontMap) {
 }
 
 void StyleSheetMultiStyleParser::storeData(const std::string &selector, const StyleSheetTable::AttributeMap &map) {
@@ -279,11 +282,13 @@ static std::string value(const StyleSheetTable::AttributeMap &map, const std::st
 void StyleSheetMultiStyleParser::processAtRule(const std::string &name, const StyleSheetTable::AttributeMap &attributes) {
 	ZLLogger::Instance().registerClass("FONT");
 	if (name == "@font-face") {
-		const std::string family = value(attributes, "font-family");
+		std::string family = value(attributes, "font-family");
 		if (family.empty()) {
 			ZLLogger::Instance().println("FONT", "Font family not specified in @font-face entry");
 			return;
 		}
+		family = StyleSheetUtil::strip(family);
+
 		const StyleSheetTable::AttributeMap::const_iterator it = attributes.find("src");
 		std::string path;
 		if (it != attributes.end()) {
@@ -301,7 +306,8 @@ void StyleSheetMultiStyleParser::processAtRule(const std::string &name, const St
 			ZLLogger::Instance().println("FONT", "Source not specified for " + family);
 			return;
 		}
-		myFontMap.appendFontFace(
+
+		myFontMap->append(
 			family,
 			value(attributes, "font-weight"),
 			value(attributes, "font-style"),
@@ -310,14 +316,14 @@ void StyleSheetMultiStyleParser::processAtRule(const std::string &name, const St
 	}
 }
 
-StyleSheetTableParser::StyleSheetTableParser(const std::string &pathPrefix, StyleSheetTable &styleTable, FontMap &fontMap) : StyleSheetMultiStyleParser(pathPrefix, fontMap), myStyleTable(styleTable) {
+StyleSheetTableParser::StyleSheetTableParser(const std::string &pathPrefix, StyleSheetTable &styleTable, shared_ptr<FontMap> fontMap) : StyleSheetMultiStyleParser(pathPrefix, fontMap), myStyleTable(styleTable) {
 }
 
 void StyleSheetTableParser::store(const std::string &tag, const std::string &aClass, const StyleSheetTable::AttributeMap &map) {
 	myStyleTable.addMap(tag, aClass, map);
 }
 
-StyleSheetParserWithCache::StyleSheetParserWithCache(const ZLFile &file, const std::string &pathPrefix, FontMap &fontMap, shared_ptr<EncryptionMap> encryptionMap) : StyleSheetMultiStyleParser(pathPrefix, fontMap), myEncryptionMap(encryptionMap) {
+StyleSheetParserWithCache::StyleSheetParserWithCache(const ZLFile &file, const std::string &pathPrefix, shared_ptr<FontMap> fontMap, shared_ptr<EncryptionMap> encryptionMap) : StyleSheetMultiStyleParser(pathPrefix, fontMap), myEncryptionMap(encryptionMap) {
 	myProcessedFiles.insert(file.path());
 }
 
@@ -344,9 +350,10 @@ void StyleSheetParserWithCache::importCSS(const std::string &path) {
 	myProcessedFiles.insert(fileToImport.path());
 }
 
-void StyleSheetParserWithCache::applyToTable(StyleSheetTable &table) const {
+void StyleSheetParserWithCache::applyToTables(StyleSheetTable &table, FontMap &fontMap) const {
 	for (std::list<shared_ptr<Entry> >::const_iterator it = myEntries.begin(); it != myEntries.end(); ++it) {
 		const Entry &entry = **it;
 		table.addMap(entry.Tag, entry.Class, entry.Map);
 	}
+	fontMap.merge(*myFontMap);
 }

jni/NativeFormats/fbreader/src/formats/css/StyleSheetParser.h

@@ -86,7 +86,7 @@ public:
 class StyleSheetMultiStyleParser : public StyleSheetParser {
 
 protected:
-	StyleSheetMultiStyleParser(const std::string &pathPrefix, FontMap &map);
+	StyleSheetMultiStyleParser(const std::string &pathPrefix, shared_ptr<FontMap> myFontMap);
 
 protected:
 	virtual void store(const std::string &tag, const std::string &aClass, const StyleSheetTable::AttributeMap &map) = 0;
@@ -96,13 +96,13 @@ private:
 	void processAtRule(const std::string &name, const StyleSheetTable::AttributeMap &map);
 
 protected:
-	FontMap &myFontMap;
+	shared_ptr<FontMap> myFontMap;
 };
 
 class StyleSheetTableParser : public StyleSheetMultiStyleParser {
 
 public:
-	StyleSheetTableParser(const std::string &pathPrexix, StyleSheetTable &styleTable, FontMap &fontMap);
+	StyleSheetTableParser(const std::string &pathPrexix, StyleSheetTable &styleTable, shared_ptr<FontMap> fontMap);
 
 private:
 	void store(const std::string &tag, const std::string &aClass, const StyleSheetTable::AttributeMap &map);
@@ -123,8 +123,8 @@ private:
 	};
 
 public:
-	StyleSheetParserWithCache(const ZLFile &file, const std::string &pathPrefix, FontMap &fontMap, shared_ptr<EncryptionMap> encryptionMap);
-	void applyToTable(StyleSheetTable &table) const;
+	StyleSheetParserWithCache(const ZLFile &file, const std::string &pathPrefix, shared_ptr<FontMap> fontMap, shared_ptr<EncryptionMap> encryptionMap);
+	void applyToTables(StyleSheetTable &table, FontMap &fontMap) const;
 
 private:
 	void store(const std::string &tag, const std::string &aClass, const StyleSheetTable::AttributeMap &map);

jni/NativeFormats/fbreader/src/formats/css/StyleSheetTable.cpp

@@ -22,6 +22,7 @@
 #include <ZLStringUtil.h>
 
 #include "StyleSheetTable.h"
+#include "StyleSheetUtil.h"
 
 bool StyleSheetTable::isEmpty() const {
 	return myControlMap.empty() && myPageBreakBeforeMap.empty() && myPageBreakAfterMap.empty();
@@ -138,53 +139,6 @@ const std::string &StyleSheetTable::value(const AttributeMap &map, const std::st
 	return emptyString;
 }
 
-static std::string strip(const std::string &data) {
-	std::string res = data;
-	ZLStringUtil::stripWhiteSpaces(res);
-	if (res.size() > 1 && (res[0] == '"' || res[0] == '\'') && res[0] == res[res.size() - 1]) {
-		return res.substr(1, res.size() - 2);
-	} else {
-		return res;
-	}
-}
-
-static std::vector<std::string> splitCommaSeparatedList(const std::string &data) {
-	std::vector<std::string> split;
-
-	enum {
-		S_QUOTED,
-		D_QUOTED,
-		NORMAL
-	} state = NORMAL;
-
-	std::size_t start = 0;
-	for (std::size_t i = 0; i < data.size(); ++i) {
-		const char ch = data[i];
-		switch (state) {
-			case NORMAL:
-				if (ch == ',') {
-					if (i > start) {
-						split.push_back(strip(data.substr(start, i - start)));
-					}
-					start = i + 1;
-				}
-				break;
-			case S_QUOTED:
-				if (ch == '\'') {
-					state = NORMAL;
-				}
-				break;
-			case D_QUOTED:
-				if (ch == '"') {
-					state = NORMAL;
-				}
-				break;
-		}
-	}
-
-	return split;
-}
-
 shared_ptr<ZLTextStyleEntry> StyleSheetTable::createControl(const AttributeMap &styles) {
 	shared_ptr<ZLTextStyleEntry> entry = new ZLTextStyleEntry(ZLTextStyleEntry::STYLE_CSS_ENTRY);
 
@@ -240,7 +194,7 @@ shared_ptr<ZLTextStyleEntry> StyleSheetTable::createControl(const AttributeMap &
 
 	const std::string &fontFamily = value(styles, "font-family");
 	if (!fontFamily.empty()) {
-		std::vector<std::string> families = splitCommaSeparatedList(fontFamily);
+		std::vector<std::string> families = StyleSheetUtil::splitCommaSeparatedList(fontFamily);
 		// TODO: use all families
 		if (!families.empty()) {
 			entry->setFontFamily(families[0]);

jni/NativeFormats/fbreader/src/formats/css/StyleSheetUtil.cpp

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2004-2014 Geometer Plus <contact@geometerplus.com>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <ZLStringUtil.h>
+
+#include "StyleSheetUtil.h"
+
+std::string StyleSheetUtil::strip(const std::string &data) {
+	std::string res = data;
+	ZLStringUtil::stripWhiteSpaces(res);
+	if (res.size() > 1 && (res[0] == '"' || res[0] == '\'') && res[0] == res[res.size() - 1]) {
+		return res.substr(1, res.size() - 2);
+	} else {
+		return res;
+	}
+}
+
+std::vector<std::string> StyleSheetUtil::splitCommaSeparatedList(const std::string &data) {
+	std::vector<std::string> split;
+
+	enum {
+		S_QUOTED,
+		D_QUOTED,
+		NORMAL
+	} state = NORMAL;
+
+	std::size_t start = 0;
+	for (std::size_t i = 0; i < data.size(); ++i) {
+		const char ch = data[i];
+		switch (state) {
+			case NORMAL:
+				if (ch == ',') {
+					if (i > start) {
+						split.push_back(strip(data.substr(start, i - start)));
+					}
+					start = i + 1;
+				}
+				break;
+			case S_QUOTED:
+				if (ch == '\'') {
+					state = NORMAL;
+				}
+				break;
+			case D_QUOTED:
+				if (ch == '"') {
+					state = NORMAL;
+				}
+				break;
+		}
+	}
+
+	return split;
+}

jni/NativeFormats/fbreader/src/formats/css/StyleSheetUtil.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2004-2014 Geometer Plus <contact@geometerplus.com>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef __STYLESHEETUTIL_H__
+#define __STYLESHEETUTIL_H__
+
+#include <string>
+
+struct StyleSheetUtil {
+	static std::string strip(const std::string &data);
+	static std::vector<std::string> splitCommaSeparatedList(const std::string &data);
+};
+
+#endif /* __STYLESHEETUTIL_H__ */

jni/NativeFormats/fbreader/src/formats/html/HtmlBookReader.cpp

@@ -396,6 +396,7 @@ void HtmlBookReader::setProcessPreTag(bool process) {
 }
 
 HtmlBookReader::HtmlBookReader(const std::string &baseDirectoryPath, BookModel &model, const PlainTextFormat &format, const std::string &encoding) : HtmlReader(encoding), myBookReader(model), myBaseDirPath(baseDirectoryPath), myFormat(format), myBuildTableOfContent(true), myProcessPreTag(true) {
+	myFontMap = new FontMap();
 }
 
 HtmlBookReader::~HtmlBookReader() {

jni/NativeFormats/fbreader/src/formats/html/HtmlBookReader.h

@@ -75,7 +75,7 @@ private:
 
 	StyleSheetTable myStyleSheetTable;
 	shared_ptr<StyleSheetParser> myStyleSheetParser;
-	FontMap myFontMap;
+	shared_ptr<FontMap> myFontMap;
 
 	int mySpaceCounter;
 	int myBreakCounter;

jni/NativeFormats/fbreader/src/formats/xhtml/XHTMLReader.cpp

@@ -229,7 +229,7 @@ void XHTMLTagStyleAction::doAtStart(XHTMLReader &reader, const char **xmlattribu
 
 	if (reader.myReadState == XHTML_READ_NOTHING) {
 		reader.myReadState = XHTML_READ_STYLE;
-		reader.myTableParser = new StyleSheetTableParser(reader.myPathPrefix, reader.myStyleSheetTable, *reader.myFontMap);
+		reader.myTableParser = new StyleSheetTableParser(reader.myPathPrefix, reader.myStyleSheetTable, reader.myFontMap);
 		ZLLogger::Instance().println("CSS", "parsing style tag content");
 	}
 }
@@ -269,7 +269,7 @@ void XHTMLTagLinkAction::doAtStart(XHTMLReader &reader, const char **xmlattribut
 		parser = new StyleSheetParserWithCache(
 			cssFile,
 			MiscUtil::htmlDirectoryPrefix(cssFilePath),
-			*reader.myFontMap,
+			0,
 			reader.myEncryptionMap
 		);
 		reader.myFileParsers[cssFilePath] = parser;
@@ -280,7 +280,7 @@ void XHTMLTagLinkAction::doAtStart(XHTMLReader &reader, const char **xmlattribut
 			parser->parseStream(cssStream);
 		}
 	}
-	parser->applyToTable(reader.myStyleSheetTable);
+	parser->applyToTables(reader.myStyleSheetTable, *reader.myFontMap);
 }
 
 void XHTMLTagLinkAction::doAtEnd(XHTMLReader&) {
@@ -673,6 +673,13 @@ bool XHTMLReader::addTextStyleEntry(const std::string tag, const std::string aCl
 void XHTMLReader::addTextStyleEntry(const ZLTextStyleEntry &entry) {
 	if (entry.isFeatureSupported(ZLTextStyleEntry::FONT_FAMILY)) {
 		ZLLogger::Instance().println("FONT", "Requested font family: " + entry.fontFamily());
+		shared_ptr<FontEntry> fontEntry = myFontMap->get(entry.fontFamily());
+		if (fontEntry.isNull()) {
+			ZLLogger::Instance().println("FONT", "Font entry not found for " + entry.fontFamily());
+		} else {
+			const std::string realFamily = myFinalFontMap.put(entry.fontFamily(), fontEntry);
+			ZLLogger::Instance().println("FONT", "Entry for " + entry.fontFamily() + " stored as " + realFamily);
+		}
 	}
 	myModelReader.addStyleEntry(entry);
 }

jni/NativeFormats/fbreader/src/formats/xhtml/XHTMLReader.h

@@ -108,6 +108,7 @@ private:
 	bool myNewParagraphInProgress;
 	StyleSheetTable myStyleSheetTable;
 	shared_ptr<FontMap> myFontMap;
+	FontMap myFinalFontMap;
 	std::vector<int> myCSSStack;
 	std::vector<shared_ptr<ZLTextStyleEntry> > myStyleEntryStack;
 	int myStylesToRemove;