一个基于 [Qt 6]的 Bilibili 直播弹幕库.zip

#include "danmu_display.h" #include <QLabel> #include "ui_danmu_window.h" DanmuDisplay::DanmuDisplay(Danmuku *parent) : Module("danmu_display", {}, parent) { config = nullptr; updateFollowersCountTimer = nullptr; // Module UI QHBoxLayout *layout = new QHBoxLayout(widget); // deleted by QT btn_startDisplay = new QPushButton(tr("弹幕显示"), widget); // deleted by QT btn_startDisplay->setEnabled(false); connect(btn_startDisplay, SIGNAL(clicked()), this, SLOT(startDisplay())); layout->addWidget(btn_startDisplay); btn_startPanel = new QPushButton(tr("配置"), widget); // deleted by QT btn_startPanel->setEnabled(false); connect(btn_startPanel, SIGNAL(clicked()), this, SLOT(startPanel())); layout->addWidget(btn_startPanel); btn_toggleLockPosition = new QPushButton(tr("锁定窗口"), widget); // deleted by QT btn_toggleLockPosition->setEnabled(false); connect(btn_toggleLockPosition, SIGNAL(clicked()), this, SLOT(toggleLockPosition())); layout->addWidget(btn_toggleLockPosition); Module *moduleLiveRoom = getModule("live_room"); connect(moduleLiveRoom, SIGNAL(started()), this, SLOT(enable())); connect(moduleLiveRoom, SIGNAL(stopped()), this, SLOT(disable())); } DanmuDisplay::~DanmuDisplay() { qDebug("Enter ~DanmuDisplay"); stop(); qDebug("Exit ~DanmuDisplay"); } // slots void DanmuDisplay::enable() { btn_startDisplay->setEnabled(true); } void DanmuDisplay::disable() { btn_startDisplay->setEnabled(false); stop(); } void DanmuDisplay::startDisplay() { if (!window.isNull()) { stop(); return; } Q_ASSERT(window == nullptr); window = new DanmuWindow(); // deleted in stop() Q_ASSERT(danmuLoader == nullptr); danmuLoader = new DanmuLoader(window->ui->list_danmu, this); // deleted in stop() Q_ASSERT(config == nullptr); config = new DanmuConfig(this); // deleted in stop() connect(config, SIGNAL(changed()), this, SLOT(applyConfig())); btn_toggleLockPosition->setEnabled(true); setLockPosition(config->lockPosition); btn_startPanel->setEnabled(true); applyConfig(); danmuLoader->start(); // Followers count Module *moduleLiveRoom = getModule("live_room"); connect(moduleLiveRoom, SIGNAL(followersCountUpdated(const int &)), this, SLOT(updateFollowersCount(const int &))); QMetaObject::invokeMethod(moduleLiveRoom, "updateFollowersCount"); Q_ASSERT(updateFollowersCountTimer == nullptr); updateFollowersCountTimer = new QTimer(this); // deleted in stop() connect(updateFollowersCountTimer, SIGNAL(timeout()), moduleLiveRoom, SLOT(updateFollowersCount())); updateFollowersCountTimer->start(UPDATE_FOLLOWERS_COUNT_INTERVAL_MS); QObject *protocal; QMetaObject::invokeMethod(moduleLiveRoom, "getProtocal", Q_RETURN_ARG(QObject *, protocal)); connect(protocal, SIGNAL(viewersCountUpdated(const int &)), this, SLOT(updateViewersCount(const int &))); connect(protocal, SIGNAL(recvDanmu(const int, const QString &, const QString &, const bool, const bool, const int)), this, SLOT(recvDanmu(const int, const QString &, const QString &, const bool, const bool, const int))); connect( protocal, SIGNAL( recvGift(const int, const QString &, const QString &, const int)), this, SLOT(recvGift(const int, const QString &, const QString &, const int))); } void DanmuDisplay::startPanel() { if (!panel.isNull()) { panel->deleteLater(); return; } Q_ASSERT(panel == nullptr); panel = new DanmuPanel(config); // deleted in stop() connect(panel, &DanmuPanel::testDanmu, this, &DanmuDisplay::recvDanmu); connect(panel, &DanmuPanel::testGift, this, &DanmuDisplay::recvGift); } void DanmuDisplay::stop() { qDebug("Enter stop"); Module *moduleLiveRoom = getModule("live_room"); if (moduleLiveRoom != nullptr) { disconnect(moduleLiveRoom, SIGNAL(followersCountUpdated(const int &)), this, SLOT(updateFollowersCount(const int &))); } if (updateFollowersCountTimer != nullptr) { updateFollowersCountTimer->stop(); updateFollowersCountTimer->deleteLater(); updateFollowersCountTimer = nullptr; } if (!danmuLoader.isNull()) { danmuLoader->deleteLater(); } if (!giftLoader.isNull()) { giftLoader->deleteLater(); } if (!window.isNull()) { window->deleteLater(); } if (!panel.isNull()) { panel->deleteLater(); } if (config != nullptr) { config->deleteLater(); config = nullptr; } btn_startPanel->setEnabled(false); btn_toggleLockPosition->setEnabled(false); qDebug("Exit stop"); } void DanmuDisplay::recvDanmu(const int uid, const QString &username, const QString &text, const bool isAdmin, const bool isVIP, const int userGuardLevel) { qDebug() << "Display danmu: " << uid << username << text << isAdmin << isVIP << userGuardLevel; QString prefix = ""; QString suffix = ""; if (isVIP) { suffix.append("<span style=\"color:yellow\">[VIP]</span>"); } if (isAdmin) { suffix.append("<span style=\"color:yellow\">[房]</span>"); } QLabel *label = new QLabel(danmuContentFormat.arg(prefix, username, suffix, text), window->ui->list_danmu); // deleted by QT label->setFont(config->font); label->setFixedWidth(window->ui->list_danmu->width()); label->setWordWrap(true); QListWidgetItem *item = new QListWidgetItem(window->ui->list_danmu); // deleted by QT window->ui->list_danmu->addItem(item); window->ui->list_danmu->setItemWidget(item, label); item->setSizeHint(label->sizeHint()); danmuLoader->loadItem(item); } void DanmuDisplay::recvGift(const int uid, const QString &username, const QString &giftName, const int giftCount) { if (giftLoader.isNull()) { return; } qDebug() << "Display gift:" << uid << username << giftName << giftCount; QLabel *label = new QLabel( giftContentFormat.arg(username, giftName, QString::number(giftCount))); label->setFont(config->font); label->setFixedWidth(window->ui->list_gift->width()); label->setWordWrap(true); QListWidgetItem *item = new QListWidgetItem(window->ui->list_gift); // deleted by QT window->ui->list_gift->addItem(item); window->ui->list_gift->setItemWidget(item, label); item->setSizeHint(label->sizeHint()); giftLoader->loadItem(item); } void DanmuDisplay::updateViewersCount(const int &viewersCount) { window->ui->label_viewersCount->setText(QString::number(viewersCount)); qDebug() << "Update viewers count (display):" << viewersCount; } void DanmuDisplay::updateFollowersCount(const int &followersCount) { window->ui->label_followersCount->setText(QString::number(followersCount)); qDebug() << "Update followers count (display):" << followersCount; } void DanmuDisplay::applyConfig() { danmuContentFormat = QString( "%1<span style=\"color:%2\">%3</span>%4: <span " "style=\"color:%5\">%6</span>") .arg("%1", config->usernameColor.name(), "%2", "%3", config->contentColor.name(), "%4"); giftContentFormat = QString( "<span style=\"color:%1\">%2</span> 送出了礼物 " "<span style=\"color:%3\">%4</span> x%5") .arg(config->usernameColor.name(), "%1", config->contentColor.name(), "%2",