2 files changed, 206 insertions, 0 deletions
diff --git a/reader/src/tree/FBTree.cpp b/reader/src/tree/FBTree.cpp
new file mode 100644
index 0000000..25e0bb3
--- /dev/null
+++ b/reader/src/tree/FBTree.cpp
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2004-2012 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 <ZLibrary.h>
+#include <ZLFileImage.h>
+#include <ZLResource.h>
+#include <ZLTreeListener.h>
+
+#include "FBTree.h"
+
+const ZLTypeId FBTree::TYPE_ID(ZLTreeTitledNode::TYPE_ID);
+
+const ZLTypeId &FBTree::typeId() const {
+	return TYPE_ID;
+}
+
+std::map<std::string,shared_ptr<const ZLImage> > FBTree::ourDefaultCovers;
+std::map<std::string,std::string> FBTree::ourDefaultUrls;
+
+// is there already any implementation of this stuff anywhere?
+//TODO move it to some Utils class
+static char hex_helper(int c) {
+	static char tmp[] = "0123456789ABCDEF";
+	return tmp[c];
+}
+
+static std::string percent_encoding(const std::string &str) {
+	std::string result;
+	for (std::size_t i = 0; i < str.size(); ++i) {
+		const char c = str[i];
+		if (str[i] == '\\' || str[i] == '/') {
+			result += '/';
+		} else if (std::isalpha(c) || std::isdigit(c) || c == '.' || c == '-' || c == '_' || c == '~') {
+			result += str[i];
+		} else {
+			result += "%";
+			result += hex_helper((c & 0xf0) >> 4);
+			result += hex_helper(c & 0x0f);
+		}
+	}
+	return result;
+}
+
+//TODO maybe use just one expand action?
+class FBTree::ExpandTreeAction : public ZLTreeAction {
+
+public:
+	ExpandTreeAction(FBTree &node);
+	void run();
+	ZLResourceKey key() const;
+
+private:
+	FBTree &myNode;
+};
+
+FBTree::ExpandTreeAction::ExpandTreeAction(FBTree &node) : myNode(node) {
+}
+
+void FBTree::ExpandTreeAction::run() {
+	myNode.expand();
+}
+
+ZLResourceKey FBTree::ExpandTreeAction::key() const {
+	return ZLResourceKey("expandTree");
+}
+
+shared_ptr<const ZLImage> FBTree::defaultCoverImage(const std::string &id) {
+	shared_ptr<const ZLImage> cover = ourDefaultCovers[id];
+	if (cover.isNull()) {
+		cover = new ZLFileImage(
+			ZLFile(ZLibrary::ApplicationImageDirectory() + ZLibrary::FileNameDelimiter + id), 0
+		);
+		ourDefaultCovers[id] = cover;
+	}
+	return cover;
+}
+
+//std::string FBTree::defaultImageUrl(const std::string &id) {
+//	std::string &url = ourDefaultUrls[id];
+//	if (url.empty()) {
+//		url = ZLibrary::ApplicationImageDirectory();
+//		url += "/";
+//		url += id;
+//		url = LOCALFILE_SCHEME + SCHEME_POSTFIX + percent_encoding(url);
+//	}
+//	return url;
+//}
+
+void FBTree::expand() {
+   if (ZLTreeListener *handler = listener()) {
+	   handler->onExpandRequest(this);
+   }
+}
+
+FBTree::FBTree(ZLTreeNode *parent, std::size_t position) : ZLTreeTitledNode(parent, position)/*, myCoverImageIsStored(false)*/ { }
+
+std::string FBTree::subtitle() const {
+	std::string result;
+	int count = 0;
+	const ZLTreeNode::List &subNodes = children();
+	ZLTreeNode::List::const_iterator it = subNodes.begin();
+	for (; it != subNodes.end() && count < 3; ++it, ++count) {
+		if (count > 0) {
+			result += ", ";
+		}
+		result += ((const FBTree*)*it)->title();
+	}
+	if (it != subNodes.end()) {
+		result += ", ...";
+	}
+	return result;
+}
+
+void FBTree::registerExpandTreeAction() {
+	registerAction(new ExpandTreeAction(*this));
+}
+
+//shared_ptr<const ZLImage> FBTree::coverImage() const {
+//	if (!myCoverImageIsStored) {
+//		myCoverImageIsStored = true;
+//		myStoredCoverImage = image();
+//	}
+//	return myStoredCoverImage;
+//}
+
+
diff --git a/reader/src/tree/FBTree.h b/reader/src/tree/FBTree.h
new file mode 100644
index 0000000..e0efb38
--- /dev/null
+++ b/reader/src/tree/FBTree.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2004-2012 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 __FBTREE_H__
+#define __FBTREE_H__
+
+#include <ZLTreeTitledNode.h>
+
+class FBTree : public ZLTreeTitledNode {
+
+public:
+	static const ZLTypeId TYPE_ID;
+
+private:
+	const ZLTypeId &typeId() const;
+
+private:
+	class ExpandTreeAction;
+
+public:
+	static shared_ptr<const ZLImage> defaultCoverImage(const std::string &id);
+	//static std::string defaultImageUrl(const std::string &id);
+
+public: //TODO make protected
+	void expand();
+
+private:
+	static std::map<std::string,shared_ptr<const ZLImage> > ourDefaultCovers;
+	static std::map<std::string,std::string> ourDefaultUrls;
+
+public:
+	FBTree(ZLTreeNode *parent, std::size_t position = (std::size_t)-1);
+//	shared_ptr<const ZLImage> coverImage() const;
+	std::string subtitle() const;
+
+protected:
+	void registerExpandTreeAction();
+
+private:
+//	mutable bool myCoverImageIsStored;
+//	mutable shared_ptr<const ZLImage> myStoredCoverImage;
+};
+
+
+
+
+
+#endif /* __FBTREE_H__ */