File indexing completed on 2024-05-12 16:27:21

 /*
    SPDX-FileCopyrightText: 2020-2024 Laurent Montel <montel@kde.org>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "avatarcachemanager.h"
 #include "emoticons/emojimanager.h"
 #include "rocketchataccount.h"
 #include "ruqolawidgets_debug.h"
 #include <QPainter>
 #include <QWidget>
 
 AvatarCacheManager::AvatarCacheManager(const Utils::AvatarType avatarType, QObject *parent)
     : QObject(parent)
     , mAvatarType(avatarType)
     , mEmojiFont(Utils::emojiFontName())
 {
 }
 
 AvatarCacheManager::~AvatarCacheManager() = default;
 
 qreal AvatarCacheManager::checkIfNeededToClearCache(const QWidget *widget) const
 {
     const auto dpr = widget->devicePixelRatioF();
     if (dpr != mAvatarCache.dpr) {
         mAvatarCache.dpr = dpr;
         mAvatarCache.cache.clear();
     }
     return dpr;
 }
 
 void AvatarCacheManager::slotAvatarChanged(const Utils::AvatarInfo &info)
 {
     if ((info.avatarType == mAvatarType) || (mAvatarType == Utils::AvatarType::UserAndRoom)) {
         const QString iconUrlStr = mRocketChatAccount->avatarUrl(info);
         if (iconUrlStr.isEmpty()) {
             return;
         }
         auto &cache = mAvatarCache.cache;
         auto downScaled = cache.findCachedPixmap(iconUrlStr);
         if (!downScaled.isNull()) {
             mAvatarCache.cache.remove(iconUrlStr);
             mRocketChatAccount->updateAvatarCache(info);
         }
     }
 }
 
 void AvatarCacheManager::setCurrentRocketChatAccount(RocketChatAccount *currentRocketChatAccount)
 {
     if (mRocketChatAccount) {
         disconnect(mRocketChatAccount, nullptr, this, nullptr);
     }
 
     mRocketChatAccount = currentRocketChatAccount;
     connect(mRocketChatAccount, &RocketChatAccount::avatarWasChanged, this, &AvatarCacheManager::slotAvatarChanged);
 }
 
 QPixmap AvatarCacheManager::makeAvatarEmojiPixmap(const QString &emojiStr, const QWidget *widget, const Utils::AvatarInfo &info, int maxHeight) const
 {
     const auto dpr = checkIfNeededToClearCache(widget);
     auto &cache = mAvatarCache.cache;
 
     auto downScaled = cache.findCachedPixmap(emojiStr);
     if (downScaled.isNull()) {
         auto *emojiManager = mRocketChatAccount->emojiManager();
         const TextEmoticonsCore::UnicodeEmoticon emoticon = emojiManager->unicodeEmoticonForEmoji(emojiStr);
         if (emoticon.isValid()) {
             const QFontMetrics fm(mEmojiFont);
             const QSize size = fm.boundingRect(emoticon.unicode()).size();
 
             // qDebug() << " size " << size << "emojiStr "<< emojiStr << " emoticon.unicode() " <<emoticon.unicode() <<
             // fm.horizontalAdvance(emoticon.unicode()); boundingRect can return a width == 0 for existing character as :warning: emoji.
             QPixmap fullScale(fm.horizontalAdvance(emoticon.unicode()), size.height());
 
             fullScale.fill(Qt::white);
             QPainter painter(&fullScale);
             painter.setFont(mEmojiFont);
             painter.drawText(fullScale.rect(), Qt::AlignCenter, emoticon.unicode());
             downScaled = fullScale.scaledToHeight(maxHeight * dpr, Qt::SmoothTransformation);
             downScaled.setDevicePixelRatio(dpr);
             cache.insertCachedPixmap(emojiStr, downScaled);
         } else {
             return makeAvatarPixmap(widget, info, maxHeight);
         }
     }
     return downScaled;
 }
 
 void AvatarCacheManager::clearCache()
 {
     mAvatarCache.cache.clear();
 }
 
 void AvatarCacheManager::setMaxEntries(int maxEntries)
 {
     mAvatarCache.cache.setMaxEntries(maxEntries);
 }
 
 QPixmap AvatarCacheManager::makeAvatarUrlPixmap(const QWidget *widget, const QString &url, int maxHeight) const
 {
     const QUrl iconUrlStr = mRocketChatAccount->previewUrlFromLocalCache(url);
     if (iconUrlStr.isEmpty()) {
         return {};
     }
 
     const auto dpr = checkIfNeededToClearCache(widget);
 
     auto &cache = mAvatarCache.cache;
 
     auto downScaled = cache.findCachedPixmap(iconUrlStr.toLocalFile());
     if (downScaled.isNull()) {
         const QUrl iconUrl(iconUrlStr);
         Q_ASSERT(iconUrl.isLocalFile());
         QPixmap fullScale;
         if (!fullScale.load(iconUrl.toLocalFile())) {
             qCWarning(RUQOLAWIDGETS_LOG) << "Could not load" << iconUrl.toLocalFile();
             return {};
         }
         downScaled = fullScale.scaledToHeight(maxHeight * dpr, Qt::SmoothTransformation);
         downScaled.setDevicePixelRatio(dpr);
         cache.insertCachedPixmap(iconUrlStr.toLocalFile(), downScaled);
     }
     return downScaled;
 }
 
 QPixmap AvatarCacheManager::makeAvatarPixmap(const QWidget *widget, const Utils::AvatarInfo &info, int maxHeight) const
 {
     const QString iconUrlStr = mRocketChatAccount->avatarUrl(info);
     if (iconUrlStr.isEmpty()) {
         return {};
     }
 
     const auto dpr = checkIfNeededToClearCache(widget);
 
     auto &cache = mAvatarCache.cache;
 
     auto downScaled = cache.findCachedPixmap(iconUrlStr);
     if (downScaled.isNull()) {
         const QUrl iconUrl(iconUrlStr);
         Q_ASSERT(iconUrl.isLocalFile());
         QPixmap fullScale;
         if (!fullScale.load(iconUrl.toLocalFile())) {
             qCWarning(RUQOLAWIDGETS_LOG) << "Could not load" << iconUrl.toLocalFile();
             return {};
         }
         downScaled = fullScale.scaledToHeight(maxHeight * dpr, Qt::SmoothTransformation);
         downScaled.setDevicePixelRatio(dpr);
         cache.insertCachedPixmap(iconUrlStr, downScaled);
     }
     return downScaled;
 }
 
 #include "moc_avatarcachemanager.cpp"