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Diffstat (limited to 'depends/iconfix/internal/qiconloader.cpp')
| -rw-r--r-- | depends/iconfix/internal/qiconloader.cpp | 688 |
1 files changed, 0 insertions, 688 deletions
diff --git a/depends/iconfix/internal/qiconloader.cpp b/depends/iconfix/internal/qiconloader.cpp deleted file mode 100644 index b1195893..00000000 --- a/depends/iconfix/internal/qiconloader.cpp +++ /dev/null @@ -1,688 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL21$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 or version 3 as published by the Free -** Software Foundation and appearing in the file LICENSE.LGPLv21 and -** LICENSE.LGPLv3 included in the packaging of this file. Please review the -** following information to ensure the GNU Lesser General Public License -** requirements will be met: https://www.gnu.org/licenses/lgpl.html and -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ -#include "qiconloader_p.h" - -#include <QtGui/QIconEnginePlugin> -#include <QtGui/QPixmapCache> -#include <QtGui/QIconEngine> -#include <QtGui/QPalette> -#include <QtCore/QList> -#include <QtCore/QHash> -#include <QtCore/QDir> -#include <QtCore/QSettings> -#include <QtGui/QPainter> -#include <QApplication> -#include <QLatin1Literal> - -#include "qhexstring_p.h" - -namespace QtXdg -{ - -Q_GLOBAL_STATIC(QIconLoader, iconLoaderInstance) - -/* Theme to use in last resort, if the theme does not have the icon, neither the parents */ - -static QString fallbackTheme() -{ - return QString("hicolor"); -} - -QIconLoader::QIconLoader() : m_themeKey(1), m_supportsSvg(false), m_initialized(false) -{ -} - -// We lazily initialize the loader to make static icons -// work. Though we do not officially support this. - -static inline QString systemThemeName() -{ - return QIcon::themeName(); -} - -static inline QStringList systemIconSearchPaths() -{ - auto paths = QIcon::themeSearchPaths(); - paths.push_front(":/icons"); - return paths; -} - -void QIconLoader::ensureInitialized() -{ - if (!m_initialized) - { - m_initialized = true; - - Q_ASSERT(qApp); - - m_systemTheme = QIcon::themeName(); - - if (m_systemTheme.isEmpty()) - m_systemTheme = fallbackTheme(); - m_supportsSvg = true; - } -} - -QIconLoader *QIconLoader::instance() -{ - iconLoaderInstance()->ensureInitialized(); - return iconLoaderInstance(); -} - -// Queries the system theme and invalidates existing -// icons if the theme has changed. -void QIconLoader::updateSystemTheme() -{ - // Only change if this is not explicitly set by the user - if (m_userTheme.isEmpty()) - { - QString theme = systemThemeName(); - if (theme.isEmpty()) - theme = fallbackTheme(); - if (theme != m_systemTheme) - { - m_systemTheme = theme; - invalidateKey(); - } - } -} - -void QIconLoader::setThemeName(const QString &themeName) -{ - m_userTheme = themeName; - invalidateKey(); -} - -void QIconLoader::setThemeSearchPath(const QStringList &searchPaths) -{ - m_iconDirs = searchPaths; - themeList.clear(); - invalidateKey(); -} - -QStringList QIconLoader::themeSearchPaths() const -{ - if (m_iconDirs.isEmpty()) - { - m_iconDirs = systemIconSearchPaths(); - } - return m_iconDirs; -} - -QIconTheme::QIconTheme(const QString &themeName) : m_valid(false) -{ - QFile themeIndex; - - QStringList iconDirs = systemIconSearchPaths(); - for (int i = 0; i < iconDirs.size(); ++i) - { - QDir iconDir(iconDirs[i]); - QString themeDir = iconDir.path() + QLatin1Char('/') + themeName; - themeIndex.setFileName(themeDir + QLatin1String("/index.theme")); - if (themeIndex.exists()) - { - m_contentDir = themeDir; - m_valid = true; - - foreach (QString path, iconDirs) - { - if (QFileInfo(path).isDir()) - m_contentDirs.append(path + QLatin1Char('/') + themeName); - } - - break; - } - } - - // if there is no index file, abscond. - if (!themeIndex.exists()) - return; - - // otherwise continue reading index file - const QSettings indexReader(themeIndex.fileName(), QSettings::IniFormat); - QStringListIterator keyIterator(indexReader.allKeys()); - while (keyIterator.hasNext()) - { - const QString key = keyIterator.next(); - if (!key.endsWith(QLatin1String("/Size"))) - continue; - - // Note the QSettings ini-format does not accept - // slashes in key names, hence we have to cheat - int size = indexReader.value(key).toInt(); - if (!size) - continue; - - QString directoryKey = key.left(key.size() - 5); - QIconDirInfo dirInfo(directoryKey); - dirInfo.size = size; - QString type = - indexReader.value(directoryKey + QLatin1String("/Type")).toString(); - - if (type == QLatin1String("Fixed")) - dirInfo.type = QIconDirInfo::Fixed; - else if (type == QLatin1String("Scalable")) - dirInfo.type = QIconDirInfo::Scalable; - else - dirInfo.type = QIconDirInfo::Threshold; - - dirInfo.threshold = - indexReader.value(directoryKey + QLatin1String("/Threshold"), 2) - .toInt(); - - dirInfo.minSize = - indexReader.value(directoryKey + QLatin1String("/MinSize"), size) - .toInt(); - - dirInfo.maxSize = - indexReader.value(directoryKey + QLatin1String("/MaxSize"), size) - .toInt(); - m_keyList.append(dirInfo); - } - - // Parent themes provide fallbacks for missing icons - m_parents = indexReader.value(QLatin1String("Icon Theme/Inherits")).toStringList(); - m_parents.removeAll(QString()); - - // Ensure a default platform fallback for all themes - if (m_parents.isEmpty()) - { - const QString fallback = fallbackTheme(); - if (!fallback.isEmpty()) - m_parents.append(fallback); - } - - // Ensure that all themes fall back to hicolor - if (!m_parents.contains(QLatin1String("hicolor"))) - m_parents.append(QLatin1String("hicolor")); -} - -QThemeIconEntries QIconLoader::findIconHelper(const QString &themeName, const QString &iconName, - QStringList &visited) const -{ - QThemeIconEntries entries; - Q_ASSERT(!themeName.isEmpty()); - - QPixmap pixmap; - - // Used to protect against potential recursions - visited << themeName; - - QIconTheme theme = themeList.value(themeName); - if (!theme.isValid()) - { - theme = QIconTheme(themeName); - if (!theme.isValid()) - theme = QIconTheme(fallbackTheme()); - - themeList.insert(themeName, theme); - } - - QStringList contentDirs = theme.contentDirs(); - const QVector<QIconDirInfo> subDirs = theme.keyList(); - - const QString svgext(QLatin1String(".svg")); - const QString pngext(QLatin1String(".png")); - const QString xpmext(QLatin1String(".xpm")); - - // Add all relevant files - for (int i = 0; i < subDirs.size(); ++i) - { - const QIconDirInfo &dirInfo = subDirs.at(i); - QString subdir = dirInfo.path; - - foreach (QString contentDir, contentDirs) - { - QDir currentDir(contentDir + '/' + subdir); - - if (currentDir.exists(iconName + pngext)) - { - PixmapEntry *iconEntry = new PixmapEntry; - iconEntry->dir = dirInfo; - iconEntry->filename = currentDir.filePath(iconName + pngext); - // Notice we ensure that pixmap entries always come before - // scalable to preserve search order afterwards - entries.prepend(iconEntry); - } - else if (m_supportsSvg && currentDir.exists(iconName + svgext)) - { - ScalableEntry *iconEntry = new ScalableEntry; - iconEntry->dir = dirInfo; - iconEntry->filename = currentDir.filePath(iconName + svgext); - entries.append(iconEntry); - break; - } - else if (currentDir.exists(iconName + xpmext)) - { - PixmapEntry *iconEntry = new PixmapEntry; - iconEntry->dir = dirInfo; - iconEntry->filename = currentDir.filePath(iconName + xpmext); - // Notice we ensure that pixmap entries always come before - // scalable to preserve search order afterwards - entries.append(iconEntry); - break; - } - } - } - - if (entries.isEmpty()) - { - const QStringList parents = theme.parents(); - // Search recursively through inherited themes - for (int i = 0; i < parents.size(); ++i) - { - - const QString parentTheme = parents.at(i).trimmed(); - - if (!visited.contains(parentTheme)) // guard against recursion - entries = findIconHelper(parentTheme, iconName, visited); - - if (!entries.isEmpty()) // success - break; - } - } - -/********************************************************************* -Author: Kaitlin Rupert <kaitlin.rupert@intel.com> -Date: Aug 12, 2010 -Description: Make it so that the QIcon loader honors /usr/share/pixmaps - directory. This is a valid directory per the Freedesktop.org - icon theme specification. -Bug: https://bugreports.qt.nokia.com/browse/QTBUG-12874 - *********************************************************************/ -#ifdef Q_OS_LINUX - /* Freedesktop standard says to look in /usr/share/pixmaps last */ - if (entries.isEmpty()) - { - const QString pixmaps(QLatin1String("/usr/share/pixmaps")); - - QDir currentDir(pixmaps); - QIconDirInfo dirInfo(pixmaps); - if (currentDir.exists(iconName + pngext)) - { - PixmapEntry *iconEntry = new PixmapEntry; - iconEntry->dir = dirInfo; - iconEntry->filename = currentDir.filePath(iconName + pngext); - // Notice we ensure that pixmap entries always come before - // scalable to preserve search order afterwards - entries.prepend(iconEntry); - } - else if (m_supportsSvg && currentDir.exists(iconName + svgext)) - { - ScalableEntry *iconEntry = new ScalableEntry; - iconEntry->dir = dirInfo; - iconEntry->filename = currentDir.filePath(iconName + svgext); - entries.append(iconEntry); - } - else if (currentDir.exists(iconName + xpmext)) - { - PixmapEntry *iconEntry = new PixmapEntry; - iconEntry->dir = dirInfo; - iconEntry->filename = currentDir.filePath(iconName + xpmext); - // Notice we ensure that pixmap entries always come before - // scalable to preserve search order afterwards - entries.append(iconEntry); - } - } -#endif - - if (entries.isEmpty()) - { - // Search for unthemed icons in main dir of search paths - QStringList themeSearchPaths = QIcon::themeSearchPaths(); - foreach (QString contentDir, themeSearchPaths) - { - QDir currentDir(contentDir); - - if (currentDir.exists(iconName + pngext)) - { - PixmapEntry *iconEntry = new PixmapEntry; - iconEntry->filename = currentDir.filePath(iconName + pngext); - // Notice we ensure that pixmap entries always come before - // scalable to preserve search order afterwards - entries.prepend(iconEntry); - } - else if (m_supportsSvg && currentDir.exists(iconName + svgext)) - { - ScalableEntry *iconEntry = new ScalableEntry; - iconEntry->filename = currentDir.filePath(iconName + svgext); - entries.append(iconEntry); - break; - } - else if (currentDir.exists(iconName + xpmext)) - { - PixmapEntry *iconEntry = new PixmapEntry; - iconEntry->filename = currentDir.filePath(iconName + xpmext); - // Notice we ensure that pixmap entries always come before - // scalable to preserve search order afterwards - entries.append(iconEntry); - break; - } - } - } - return entries; -} - -QThemeIconEntries QIconLoader::loadIcon(const QString &name) const -{ - if (!themeName().isEmpty()) - { - QStringList visited; - return findIconHelper(themeName(), name, visited); - } - - return QThemeIconEntries(); -} - -// -------- Icon Loader Engine -------- // - -QIconLoaderEngineFixed::QIconLoaderEngineFixed(const QString &iconName) - : m_iconName(iconName), m_key(0) -{ -} - -QIconLoaderEngineFixed::~QIconLoaderEngineFixed() -{ - qDeleteAll(m_entries); -} - -QIconLoaderEngineFixed::QIconLoaderEngineFixed(const QIconLoaderEngineFixed &other) - : QIconEngine(other), m_iconName(other.m_iconName), m_key(0) -{ -} - -QIconEngine *QIconLoaderEngineFixed::clone() const -{ - return new QIconLoaderEngineFixed(*this); -} - -bool QIconLoaderEngineFixed::read(QDataStream &in) -{ - in >> m_iconName; - return true; -} - -bool QIconLoaderEngineFixed::write(QDataStream &out) const -{ - out << m_iconName; - return true; -} - -bool QIconLoaderEngineFixed::hasIcon() const -{ - return !(m_entries.isEmpty()); -} - -// Lazily load the icon -void QIconLoaderEngineFixed::ensureLoaded() -{ - if (!(QIconLoader::instance()->themeKey() == m_key)) - { - - qDeleteAll(m_entries); - - m_entries = QIconLoader::instance()->loadIcon(m_iconName); - m_key = QIconLoader::instance()->themeKey(); - } -} - -void QIconLoaderEngineFixed::paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, - QIcon::State state) -{ - QSize pixmapSize = rect.size(); -#if defined(Q_WS_MAC) - pixmapSize *= qt_mac_get_scalefactor(); -#endif - painter->drawPixmap(rect, pixmap(pixmapSize, mode, state)); -} - -/* - * This algorithm is defined by the freedesktop spec: - * http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html - */ -static bool directoryMatchesSize(const QIconDirInfo &dir, int iconsize) -{ - if (dir.type == QIconDirInfo::Fixed) - { - return dir.size == iconsize; - } - else if (dir.type == QIconDirInfo::Scalable) - { - return dir.size <= dir.maxSize && iconsize >= dir.minSize; - } - else if (dir.type == QIconDirInfo::Threshold) - { - return iconsize >= dir.size - dir.threshold && iconsize <= dir.size + dir.threshold; - } - - Q_ASSERT(1); // Not a valid value - return false; -} - -/* - * This algorithm is defined by the freedesktop spec: - * http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html - */ -static int directorySizeDistance(const QIconDirInfo &dir, int iconsize) -{ - if (dir.type == QIconDirInfo::Fixed) - { - return qAbs(dir.size - iconsize); - } - else if (dir.type == QIconDirInfo::Scalable) - { - if (iconsize < dir.minSize) - return dir.minSize - iconsize; - else if (iconsize > dir.maxSize) - return iconsize - dir.maxSize; - else - return 0; - } - else if (dir.type == QIconDirInfo::Threshold) - { - if (iconsize < dir.size - dir.threshold) - return dir.minSize - iconsize; - else if (iconsize > dir.size + dir.threshold) - return iconsize - dir.maxSize; - else - return 0; - } - - Q_ASSERT(1); // Not a valid value - return INT_MAX; -} - -QIconLoaderEngineEntry *QIconLoaderEngineFixed::entryForSize(const QSize &size) -{ - int iconsize = qMin(size.width(), size.height()); - - // Note that m_entries are sorted so that png-files - // come first - - const int numEntries = m_entries.size(); - - // Search for exact matches first - for (int i = 0; i < numEntries; ++i) - { - QIconLoaderEngineEntry *entry = m_entries.at(i); - if (directoryMatchesSize(entry->dir, iconsize)) - { - return entry; - } - } - - // Find the minimum distance icon - int minimalSize = INT_MAX; - QIconLoaderEngineEntry *closestMatch = 0; - for (int i = 0; i < numEntries; ++i) - { - QIconLoaderEngineEntry *entry = m_entries.at(i); - int distance = directorySizeDistance(entry->dir, iconsize); - if (distance < minimalSize) - { - minimalSize = distance; - closestMatch = entry; - } - } - return closestMatch; -} - -/* - * Returns the actual icon size. For scalable svg's this is equivalent - * to the requested size. Otherwise the closest match is returned but - * we can never return a bigger size than the requested size. - * - */ -QSize QIconLoaderEngineFixed::actualSize(const QSize &size, QIcon::Mode mode, - QIcon::State state) -{ - ensureLoaded(); - - QIconLoaderEngineEntry *entry = entryForSize(size); - if (entry) - { - const QIconDirInfo &dir = entry->dir; - if (dir.type == QIconDirInfo::Scalable) - return size; - else - { - int result = qMin<int>(dir.size, qMin(size.width(), size.height())); - return QSize(result, result); - } - } - return QIconEngine::actualSize(size, mode, state); -} - -QPixmap PixmapEntry::pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) -{ - Q_UNUSED(state); - - // Ensure that basePixmap is lazily initialized before generating the - // key, otherwise the cache key is not unique - if (basePixmap.isNull()) - basePixmap.load(filename); - - QSize actualSize = basePixmap.size(); - if (!actualSize.isNull() && - (actualSize.width() > size.width() || actualSize.height() > size.height())) - actualSize.scale(size, Qt::KeepAspectRatio); - - QString key = QLatin1String("$qt_theme_") % HexString<qint64>(basePixmap.cacheKey()) % - HexString<int>(mode) % - HexString<qint64>(QGuiApplication::palette().cacheKey()) % - HexString<int>(actualSize.width()) % HexString<int>(actualSize.height()); - - QPixmap cachedPixmap; - if (QPixmapCache::find(key, &cachedPixmap)) - { - return cachedPixmap; - } - else - { - if (basePixmap.size() != actualSize) - { - cachedPixmap = basePixmap.scaled(actualSize, Qt::IgnoreAspectRatio, Qt::SmoothTransformation); - } - else - { - cachedPixmap = basePixmap; - } - QPixmapCache::insert(key, cachedPixmap); - } - return cachedPixmap; -} - -QPixmap ScalableEntry::pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) -{ - if (svgIcon.isNull()) - { - svgIcon = QIcon(filename); - } - - // Simply reuse svg icon engine - return svgIcon.pixmap(size, mode, state); -} - -QPixmap QIconLoaderEngineFixed::pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) -{ - ensureLoaded(); - - QIconLoaderEngineEntry *entry = entryForSize(size); - if (entry) - { - return entry->pixmap(size, mode, state); - } - - return QPixmap(); -} - -QString QIconLoaderEngineFixed::key() const -{ - return QLatin1String("QIconLoaderEngineFixed"); -} - -void QIconLoaderEngineFixed::virtual_hook(int id, void *data) -{ - ensureLoaded(); - - switch (id) - { - case QIconEngine::AvailableSizesHook: - { - QIconEngine::AvailableSizesArgument &arg = - *reinterpret_cast<QIconEngine::AvailableSizesArgument *>(data); - const int N = m_entries.size(); - QList<QSize> sizes; - sizes.reserve(N); - - // Gets all sizes from the DirectoryInfo entries - for (int i = 0; i < N; ++i) - { - int size = m_entries.at(i)->dir.size; - sizes.append(QSize(size, size)); - } - arg.sizes.swap(sizes); // commit - } - break; - case QIconEngine::IconNameHook: - { - QString &name = *reinterpret_cast<QString *>(data); - name = m_iconName; - } - break; - default: - QIconEngine::virtual_hook(id, data); - } -} - -} // QtXdg |