diff options
author | Michele Calgaro <[email protected]> | 2024-05-11 21:28:48 +0900 |
---|---|---|
committer | Michele Calgaro <[email protected]> | 2024-05-11 21:28:48 +0900 |
commit | 2462d03f322261bd616721c2b2065c4004b36c9c (patch) | |
tree | 239947a0737bb8386703a1497f12c09aebd3080a /fbreader/src/library/Comparators.cpp | |
download | tde-ebook-reader-2462d03f322261bd616721c2b2065c4004b36c9c.tar.gz tde-ebook-reader-2462d03f322261bd616721c2b2065c4004b36c9c.zip |
Initial import (as is) from Debian Snapshot's 'fbreader' source code (https://snapshot.debian.org/package/fbreader/0.99.4%2Bdfsg-6).
The Debian code is provided under GPL2 license.
Signed-off-by: Michele Calgaro <[email protected]>
Diffstat (limited to 'fbreader/src/library/Comparators.cpp')
-rw-r--r-- | fbreader/src/library/Comparators.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/fbreader/src/library/Comparators.cpp b/fbreader/src/library/Comparators.cpp new file mode 100644 index 0000000..30b4059 --- /dev/null +++ b/fbreader/src/library/Comparators.cpp @@ -0,0 +1,106 @@ +/* + * 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 <cstdlib> + +#include "Book.h" +#include "Author.h" +#include "Tag.h" + +bool BookComparator::operator() ( + const shared_ptr<Book> book0, + const shared_ptr<Book> book1 +) const { + const std::string &seriesTitle0 = book0->seriesTitle(); + const std::string &seriesTitle1 = book1->seriesTitle(); + int comp = seriesTitle0.compare(seriesTitle1); + if (comp == 0) { + if (!seriesTitle0.empty()) { + if (book0->indexInSeries() < book1->indexInSeries() && + !(book0->indexInSeries() == book1->indexInSeries())) { + return true; + } + } + return book0->title() < book1->title(); + } + if (seriesTitle0.empty()) { + return book0->title() < seriesTitle1; + } + if (seriesTitle1.empty()) { + return seriesTitle0 <= book1->title(); + } + return comp < 0; +} + +bool BookByFileNameComparator::operator() ( + const shared_ptr<Book> book0, + const shared_ptr<Book> book1 +) const { + return book0->file() < book1->file(); +} + +bool AuthorComparator::operator() ( + const shared_ptr<Author> author0, + const shared_ptr<Author> author1 +) const { + if (author0.isNull()) { + return !author1.isNull(); + } + if (author1.isNull()) { + return false; + } + + const int comp = author0->sortKey().compare(author1->sortKey()); + return comp != 0 ? comp < 0 : author0->name() < author1->name(); +} + +bool TagComparator::operator() ( + shared_ptr<Tag> tag0, + shared_ptr<Tag> tag1 +) const { + if (tag0.isNull()) { + return !tag1.isNull(); + } + if (tag1.isNull()) { + return false; + } + + std::size_t level0 = tag0->level(); + std::size_t level1 = tag1->level(); + if (level0 > level1) { + for (; level0 > level1; --level0) { + tag0 = tag0->parent(); + } + if (tag0 == tag1) { + return false; + } + } else if (level0 < level1) { + for (; level0 < level1; --level1) { + tag1 = tag1->parent(); + } + if (tag0 == tag1) { + return true; + } + } + while (tag0->parent() != tag1->parent()) { + tag0 = tag0->parent(); + tag1 = tag1->parent(); + } + return tag0->name() < tag1->name(); +} |