diff options
Diffstat (limited to 'src/gui/DatabaseIcons.cpp')
-rw-r--r-- | src/gui/DatabaseIcons.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/gui/DatabaseIcons.cpp b/src/gui/DatabaseIcons.cpp new file mode 100644 index 000000000..f83ce9ac4 --- /dev/null +++ b/src/gui/DatabaseIcons.cpp @@ -0,0 +1,119 @@ +/* + * Copyright (C) 2010 Felix Geyer <debfx@fobos.de> + * + * 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 or (at your option) + * version 3 of the License. + * + * 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, see <http://www.gnu.org/licenses/>. + */ + +#include "DatabaseIcons.h" + +#include "core/Config.h" +#include "core/Global.h" + +#include <QDir> +#include <QImageReader> +#include <QPainter> +#include <QPixmapCache> + +DatabaseIcons* DatabaseIcons::m_instance(nullptr); + +namespace +{ + const QString iconDir = QStringLiteral(":/icons/database/"); + QStringList iconList; + + const QString badgeDir = QStringLiteral(":/icons/badges/"); + QStringList badgeList; +} // namespace + +DatabaseIcons::DatabaseIcons() +{ + iconList = QDir(iconDir).entryList(QDir::NoFilter, QDir::Name); + badgeList = QDir(badgeDir).entryList(QDir::NoFilter, QDir::Name); + + // Set this early and once to ensure consistent icon size until app restart + m_compactMode = config()->get(Config::GUI_CompactMode).toBool(); +} + +DatabaseIcons* DatabaseIcons::instance() +{ + if (!m_instance) { + m_instance = new DatabaseIcons(); + } + + return m_instance; +} + +QPixmap DatabaseIcons::icon(int index, IconSize size) +{ + if (index < 0 || index >= count()) { + qWarning("DatabaseIcons::icon: invalid icon index %d, using 0 instead", index); + index = 0; + Q_ASSERT_X(false, "DatabaseIcons::icon", "invalid icon index %d"); + } + + auto cacheKey = QString::number(index); + auto icon = m_iconCache.value(cacheKey); + if (icon.isNull()) { + icon.addFile(iconDir + iconList[index]); + icon.addPixmap(icon.pixmap(64)); + m_iconCache.insert(cacheKey, icon); + } + + return icon.pixmap(iconSize(size)); +} + +QPixmap DatabaseIcons::applyBadge(const QPixmap& basePixmap, Badges badgeIndex) +{ + const auto cacheKey = QStringLiteral("badgedicon-%1-%2").arg(basePixmap.cacheKey()).arg(badgeIndex); + QPixmap pixmap = basePixmap; + if (badgeIndex < 0 || badgeIndex >= badgeList.size()) { + qWarning("DatabaseIcons: Out-of-range badge index given to applyBadge: %d", badgeIndex); + } else if (!QPixmapCache::find(cacheKey, &pixmap)) { + int baseSize = basePixmap.width(); + int badgeSize = + baseSize <= iconSize(IconSize::Default) * basePixmap.devicePixelRatio() ? baseSize * 0.6 : baseSize * 0.5; + QPoint badgePos(baseSize - badgeSize, baseSize - badgeSize); + badgePos /= basePixmap.devicePixelRatio(); + + QImageReader reader(badgeDir + badgeList[badgeIndex]); + reader.setScaledSize({badgeSize, badgeSize}); + auto badge = QPixmap::fromImageReader(&reader); + badge.setDevicePixelRatio(basePixmap.devicePixelRatio()); + + QPainter painter(&pixmap); + painter.setCompositionMode(QPainter::CompositionMode_SourceOver); + painter.drawPixmap(badgePos, badge); + + QPixmapCache::insert(cacheKey, pixmap); + } + + return pixmap; +} + +int DatabaseIcons::count() +{ + return iconList.size(); +} + +int DatabaseIcons::iconSize(IconSize size) +{ + switch (size) { + case Medium: + return m_compactMode ? 26 : 30; + case Large: + return m_compactMode ? 30 : 36; + default: + return m_compactMode ? 16 : 22; + } +} |