diff options
author | Bent Bisballe Nyeng <deva@aasimon.org> | 2020-12-29 16:09:43 +0100 |
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committer | Bent Bisballe Nyeng <deva@aasimon.org> | 2020-12-29 16:39:54 +0100 |
commit | 645250e1cd8ce9bc1faea599df7a1b05836bfeb8 (patch) | |
tree | c6311afab3900d2dd2aecbfbe1ac348d0e48c428 /plugingui/imagecache.cc | |
parent | dce64999d3325c5b55499d6ba657066efa48fbff (diff) |
Split UI code into application/plugin UI and UI library.
Diffstat (limited to 'plugingui/imagecache.cc')
-rw-r--r-- | plugingui/imagecache.cc | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/plugingui/imagecache.cc b/plugingui/imagecache.cc deleted file mode 100644 index d3130fe..0000000 --- a/plugingui/imagecache.cc +++ /dev/null @@ -1,103 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/*************************************************************************** - * imagecache.cc - * - * Thu Jun 2 17:12:05 CEST 2016 - * Copyright 2016 Bent Bisballe Nyeng - * deva@aasimon.org - ****************************************************************************/ - -/* - * This file is part of DrumGizmo. - * - * DrumGizmo is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. - * - * DrumGizmo 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 Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public License - * along with DrumGizmo; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ -#include "imagecache.h" - -#include <cassert> - -#include "image.h" - -namespace GUI -{ - -ScopedImageBorrower::ScopedImageBorrower(ImageCache& imageCache, - const std::string& filename) - : imageCache(imageCache) - , filename(filename) - , image(imageCache.borrow(filename)) -{ -} - -ScopedImageBorrower::ScopedImageBorrower(ScopedImageBorrower&& other) - : imageCache(other.imageCache) - , filename(other.filename) - , image(other.image) -{ - other.filename.clear(); -} - -ScopedImageBorrower::~ScopedImageBorrower() -{ - if(!filename.empty()) - { - imageCache.giveBack(filename); - } -} - -Image& ScopedImageBorrower::operator*() -{ - return image; -} - -Image& ScopedImageBorrower::operator()() -{ - return image; -} - -ScopedImageBorrower ImageCache::getImage(const std::string& filename) -{ - return ScopedImageBorrower(*this, filename); -} - -Image& ImageCache::borrow(const std::string& filename) -{ - auto cacheIterator = imageCache.find(filename); - if(cacheIterator == imageCache.end()) - { - Image image(filename); - auto insertValue = - imageCache.emplace(filename, std::make_pair(0, std::move(image))); - cacheIterator = insertValue.first; - } - - auto& cacheEntry = cacheIterator->second; - ++cacheEntry.first; - return cacheEntry.second; -} - -void ImageCache::giveBack(const std::string& filename) -{ - auto cacheIterator = imageCache.find(filename); - assert(cacheIterator != imageCache.end()); - auto& cacheEntry = cacheIterator->second; - --cacheEntry.first; - if(cacheEntry.first == 0) - { - imageCache.erase(cacheIterator); - } -} - -} // GUI:: |