1 files changed, 88 insertions, 0 deletions
diff --git a/fbreader/src/libraryActions/BooksUtil.cpp b/fbreader/src/libraryActions/BooksUtil.cpp
new file mode 100644
index 0000000..ee831bd
--- /dev/null
+++ b/fbreader/src/libraryActions/BooksUtil.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2009-2012 Geometer Plus <[email protected]>
+ *
+ * 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 <ZLDialogManager.h>
+#include <ZLStringUtil.h>
+
+#include "BooksUtil.h"
+
+#include "../library/Library.h"
+#include "../library/Tag.h"
+#include "../fbreader/FBReader.h"
+
+void BooksUtil::removeTag(shared_ptr<Tag> tag) {
+	ZLResourceKey boxKey("removeTagBox");
+	const std::string message =
+		ZLStringUtil::printf(ZLDialogManager::dialogMessage(boxKey), tag->fullName());
+	enum { REMOVE_TAG, REMOVE_SUBTREE, DONT_REMOVE } code = DONT_REMOVE;
+
+	Library &library = Library::Instance();
+	if (library.hasSubtags(tag)) {
+		if (library.hasBooks(tag)) {
+			switch (ZLDialogManager::Instance().questionBox(boxKey, message,
+								ZLResourceKey("thisOnly"),
+								ZLResourceKey("withSubtags"),
+								ZLDialogManager::CANCEL_BUTTON
+							)) {
+				case 0:
+					code = REMOVE_TAG;
+					break;
+				case 1:
+					code = REMOVE_SUBTREE;
+					break;
+			}
+		} else {
+			if (ZLDialogManager::Instance().questionBox(boxKey, message,
+				ZLResourceKey("withSubtags"), ZLDialogManager::CANCEL_BUTTON) == 0) {
+				code = REMOVE_SUBTREE;
+			}
+		}
+	} else {
+		if (ZLDialogManager::Instance().questionBox(boxKey, message,
+			ZLDialogManager::YES_BUTTON, ZLDialogManager::CANCEL_BUTTON) == 0) {
+			code = REMOVE_TAG;
+		}
+	}
+	if (code != DONT_REMOVE) {
+		library.removeTag(tag, code == REMOVE_SUBTREE);
+		// TODO: select current node (?) again
+		FBReader::Instance().refreshWindow();
+	}
+}
+
+void BooksUtil::collectTagsFromLibrary(TagList &tags) {
+	const TagList &lTags = Library::Instance().tags();
+	TagSet tagSet;
+
+	for (TagList::const_iterator it = lTags.begin(); it != lTags.end(); ++it) {
+		shared_ptr<Tag> tag = *it;
+		if (tag.isNull()) {
+			tagSet.insert(tag);
+			tags.push_back(tag);
+		} else {
+			TagList tagStack;
+			do {
+				tagStack.push_back(tag);
+				tag = tag->parent();
+			} while (!tag.isNull() && tagSet.find(tag) == tagSet.end());
+			tagSet.insert(tagStack.begin(), tagStack.end());
+			tags.insert(tags.end(), tagStack.rbegin(), tagStack.rend());
+		}
+	}
+}