nim/Client/src/mainframe/ClientInternal.h

#pragma once

// Shared widgets/helpers used by Client*.cpp. Not part of the public Client API.

#include "AvatarCache.h"
#include "FileCache.h"
#include "FileTypeIcon.h"
#include "LocalStore.h"
#include "UiHelpers.h"

#include <functional>

#include <QAction>
#include <QApplication>
#include <QCheckBox>
#include <QColor>
#include <QContextMenuEvent>
#include <QDate>
#include <QDateTime>
#include <QDesktopServices>
#include <QEvent>
#include <QFile>
#include <QFileDialog>
#include <QFontMetrics>
#include <QFrame>
#include <QGridLayout>
#include <QHBoxLayout>
#include <QIcon>
#include <QImage>
#include <QLabel>
#include <QListWidget>
#include <QListWidgetItem>
#include <QMenu>
#include <QMouseEvent>
#include <QObject>
#include <QPaintEvent>
#include <QPainter>
#include <QPainterPath>
#include <QPalette>
#include <QPen>
#include <QPixmap>
#include <QPolygonF>
#include <QProgressBar>
#include <QPushButton>
#include <QSizePolicy>
#include <QTextLayout>
#include <QTextOption>
#include <QTimer>
#include <QUrl>
#include <QVBoxLayout>
#include <QWidget>
#include <QtMath>

namespace ClientInternal {
    enum {
        RolePeerUid = Qt::UserRole,
        RoleName = Qt::UserRole + 1,
        RoleUnread = Qt::UserRole + 2,
        RolePreview = Qt::UserRole + 3,
        RoleTs = Qt::UserRole + 4,
        RoleAccount = Qt::UserRole + 5,
        RoleSignature = Qt::UserRole + 6,
        RoleRemark = Qt::UserRole + 7,
        RoleNick = Qt::UserRole + 8,
        RoleAvatarVer = Qt::UserRole + 9,
        RoleOnline = Qt::UserRole + 10
    };

    constexpr int kReconnectMaxTries = 3;
    constexpr int kReconnectIntervalSec = 10;

    inline QString fmtMs(qint64 nsecs)
    {
        return QString::number(nsecs / 1000000.0, 'f', 1);
    }

    class SpinRing : public QWidget
    {
    public:
        explicit SpinRing(QWidget *parent = nullptr)
            : QWidget(parent)
        {
            setFixedSize(36, 36);
            auto *t = new QTimer(this);
            connect(t, &QTimer::timeout, this, [this]() {
                m_angle = (m_angle + 30) % 360;
                update();
            });
            t->start(80);
        }

    protected:
        void paintEvent(QPaintEvent *) override
        {
            QPainter p(this);
            p.setRenderHint(QPainter::Antialiasing, true);
            const QRectF r = QRectF(rect()).adjusted(3.5, 3.5, -3.5, -3.5);
            QPen back(QColor(7, 193, 96, 40), 3, Qt::SolidLine, Qt::RoundCap);
            p.setPen(back);
            p.drawEllipse(r);
            QPen pen(QColor("#07C160"), 3, Qt::SolidLine, Qt::RoundCap);
            p.setPen(pen);
            p.drawArc(r, -m_angle * 16, 220 * 16);
        }

    private:
        int m_angle = 0;
    };

    struct Conv
    {
        qint64 uid = 0;
        QString name;
        QString preview;
        QString time;
        int unread = 0;
        int avatarVer = 0;
        bool online = false;
    };

    inline QString formatTs(qint64 ms)
    {
        if (ms <= 0)
            return QString();
        const QDateTime dt = QDateTime::fromMSecsSinceEpoch(ms);
        const QDate today = QDate::currentDate();
        if (dt.date() == today)
            return dt.toString(QStringLiteral("HH:mm"));
        if (dt.date() == today.addDays(-1))
            return QStringLiteral("昨天");
        if (dt.date().year() == today.year())
            return dt.toString(QStringLiteral("MM-dd"));
        return dt.toString(QStringLiteral("yyyy-MM-dd"));
    }

    class BubbleText : public QWidget
    {
    public:
        explicit BubbleText(const QString &text, QWidget *parent = nullptr)
            : QWidget(parent)
            , m_text(text)
        {
            setObjectName(QStringLiteral("chatText"));
            setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
            setCursor(Qt::IBeamCursor);
        }

        QString text() const { return m_text; }

        void applyMaxWidth(int maxOuter)
        {
            const int ml = 10;
            const int mr = 10;
            const int mt = 8;
            const int mb = 8;
            const int innerMax = qMax(1, maxOuter - ml - mr);
            rebuild(innerMax);
            setFixedSize(m_size);
            if (QWidget *box = parentWidget())
            {
                if (auto *lay = qobject_cast<QVBoxLayout *>(box->layout()))
                    lay->setContentsMargins(ml, mt, mr, mb);
                box->setFixedSize(m_size.width() + ml + mr, m_size.height() + mt + mb);
            }
            update();
        }

    protected:
        void paintEvent(QPaintEvent *) override
        {
            QPainter p(this);
            p.setRenderHint(QPainter::TextAntialiasing, true);
            p.setPen(QColor(QStringLiteral("#191919")));
            m_layout.draw(&p, QPointF(0, 0));
        }

    private:
        void rebuild(int innerMax)
        {
            m_layout.setText(m_text);
            m_layout.setFont(font());
            QTextOption opt;
            opt.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
            m_layout.setTextOption(opt);
            m_layout.setCacheEnabled(true);
            qreal y = 0;
            qreal maxLine = 0;
            m_layout.beginLayout();
            for (;;)
            {
                QTextLine line = m_layout.createLine();
                if (!line.isValid())
                    break;
                line.setLineWidth(innerMax);
                line.setPosition(QPointF(0, y));
                y += line.height();
                maxLine = qMax(maxLine, line.naturalTextWidth());
            }
            m_layout.endLayout();
            if (y < 1)
                y = QFontMetrics(font()).height();
            m_size = QSize(qBound(1, qCeil(maxLine), innerMax), qCeil(y));
        }

        QString m_text;
        QTextLayout m_layout;
        QSize m_size;
    };

    inline void applyTextBubbleWidth(BubbleText *lab, int maxW)
    {
        if (lab)
            lab->applyMaxWidth(maxW);
    }

    class ClickWidget : public QFrame
    {
    public:
        std::function<void()> onClick;
        std::function<void()> onForward;
        std::function<void()> onSaveAs;
        std::function<void()> onFavorite;
        std::function<void()> onCopy;
        std::function<void()> onDelete;
        std::function<void()> onMultiSelect;
        explicit ClickWidget(QWidget *parent = nullptr) : QFrame(parent)
        {
            setCursor(Qt::PointingHandCursor);
        }

    protected:
        bool eventFilter(QObject *watched, QEvent *event) override
        {
            if (event->type() == QEvent::ContextMenu)
            {
                contextMenuEvent(static_cast<QContextMenuEvent *>(event));
                return true;
            }
            return QFrame::eventFilter(watched, event);
        }

        void mouseReleaseEvent(QMouseEvent *e) override
        {
            if (e->button() != Qt::LeftButton)
                return;
            QWidget *row = parentWidget();
            if (row && row->property("selecting").toBool())
            {
                if (auto *cb = row->findChild<QCheckBox *>(QStringLiteral("msgCheck")))
                    cb->toggle();
                return;
            }
            if (onClick)
                onClick();
        }

        void contextMenuEvent(QContextMenuEvent *e) override
        {
            QWidget *row = parentWidget();
            const bool selecting = row && row->property("selecting").toBool();
            if (!onCopy && !onForward && !onSaveAs && !onFavorite && !onDelete && !onMultiSelect)
            {
                QFrame::contextMenuEvent(e);
                return;
            }
            QMenu menu;
            QAction *copy = onCopy ? menu.addAction(QStringLiteral("复制")) : nullptr;
            QAction *fav = onFavorite ? menu.addAction(QStringLiteral("收藏")) : nullptr;
            QAction *fwd = onForward ? menu.addAction(QStringLiteral("转发")) : nullptr;
            QAction *save = onSaveAs ? menu.addAction(QStringLiteral("另存为")) : nullptr;
            if ((copy || fav || fwd || save) && (onDelete || onMultiSelect))
                menu.addSeparator();
            QAction *del = onDelete ? menu.addAction(QStringLiteral("删除")) : nullptr;
            QAction *multi = nullptr;
            if (onMultiSelect)
                multi = menu.addAction(selecting ? QStringLiteral("取消多选")
                                                 : QStringLiteral("多选"));
            QAction *picked = menu.exec(e->globalPos());
            if (picked && picked == copy && onCopy)
                onCopy();
            else if (picked && picked == fav && onFavorite)
                onFavorite();
            else if (picked && picked == fwd && onForward)
                onForward();
            else if (picked && picked == save && onSaveAs)
                onSaveAs();
            else if (picked && picked == del && onDelete)
                onDelete();
            else if (picked && picked == multi && onMultiSelect)
                onMultiSelect();
        }
    };

    inline QPixmap fileCtlIcon(bool pause, bool upload = false)
    {
        const int size = 22;
        const qreal dpr = qApp ? qApp->devicePixelRatio() : 1.0;
        QPixmap pm(qRound(size * dpr), qRound(size * dpr));
        pm.fill(Qt::transparent);
        pm.setDevicePixelRatio(dpr);
        QPainter p(&pm);
        p.setRenderHint(QPainter::Antialiasing);
        const QColor fg(QStringLiteral("#576B95"));
        p.setPen(QPen(fg, 1.4));
        p.setBrush(Qt::NoBrush);
        p.drawEllipse(QRectF(1.2, 1.2, size - 2.4, size - 2.4));
        if (pause)
        {
            p.setPen(Qt::NoPen);
            p.setBrush(fg);
            p.drawRoundedRect(QRectF(7.2, 6.4, 2.6, 9.2), 0.8, 0.8);
            p.drawRoundedRect(QRectF(12.2, 6.4, 2.6, 9.2), 0.8, 0.8);
        }
        else
        {
            p.setPen(QPen(fg, 1.6, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
            if (upload)
            {
                p.drawLine(QPointF(11.0, 14.4), QPointF(11.0, 8.0));
                p.drawLine(QPointF(7.8, 10.4), QPointF(11.0, 6.4));
                p.drawLine(QPointF(14.2, 10.4), QPointF(11.0, 6.4));
            }
            else
            {
                p.drawLine(QPointF(11.0, 6.2), QPointF(11.0, 12.6));
                p.drawLine(QPointF(7.8, 10.4), QPointF(11.0, 14.4));
                p.drawLine(QPointF(14.2, 10.4), QPointF(11.0, 14.4));
            }
        }
        return pm;
    }

    inline QPushButton *fileCtlBtn(QWidget *parent, bool pause, bool upload = false)
    {
        auto *btn = new QPushButton(parent);
        btn->setFixedSize(22, 22);
        btn->setCursor(Qt::PointingHandCursor);
        btn->setFocusPolicy(Qt::NoFocus);
        btn->setFlat(true);
        btn->setIcon(QIcon(fileCtlIcon(pause, upload)));
        btn->setIconSize(QSize(22, 22));
        btn->setStyleSheet(QStringLiteral(
            "QPushButton { background:transparent; border:none; padding:0; }"
            "QPushButton:disabled { opacity:0.35; }"));
        return btn;
    }

    class FileBubble : public ClickWidget
    {
    public:
        FileBubble(QWidget *parent, qint64 fileId, const QString &name, qint64 size,
                   const QString &url, const QString &mime, bool mine)
            : ClickWidget(parent)
            , m_fileId(fileId)
            , m_size(size)
            , m_url(url)
            , m_mime(mime)
            , m_name(name)
            , m_mine(mine)
        {
            setObjectName(QStringLiteral("fileBubble"));
            setStyleSheet(QStringLiteral("background:#FFFFFF; border:none; border-radius:4px;"));
            setFixedWidth(252);

            FileCache::instance().bindMeta(fileId, url, mime, name, size);

            auto *root = new QVBoxLayout(this);
            root->setContentsMargins(8, 8, 10, 8);
            root->setSpacing(6);

            auto *top = new QHBoxLayout();
            top->setContentsMargins(0, 0, 0, 0);
            top->setSpacing(8);

            auto *icon = new QLabel(this);
            icon->setFixedSize(40, 40);
            icon->setScaledContents(true);
            icon->setStyleSheet(QStringLiteral("background:transparent; border:none;"));
            if (FileCache::looksLikeImage(mime, name))
            {
                const QPixmap pm = FileCache::instance().thumbnail(fileId, 40);
                icon->setPixmap(pm.isNull() ? FileTypeIcon::pixmap(name, 40) : pm);
            }
            else
            {
                icon->setPixmap(FileTypeIcon::pixmap(name, 40));
            }

            auto *info = new QVBoxLayout();
            info->setContentsMargins(0, 0, 0, 0);
            info->setSpacing(2);
            auto *n = new QLabel(name, this);
            n->setWordWrap(true);
            n->setStyleSheet(QStringLiteral(
                "color:#191919; font-size:13px; background:transparent; border:none;"));
            m_statusLab = new QLabel(this);
            m_statusLab->setStyleSheet(QStringLiteral(
                "color:#888888; font-size:11px; background:transparent; border:none;"));
            info->addWidget(n);
            info->addWidget(m_statusLab);
            info->addStretch();

            top->addWidget(icon, 0, Qt::AlignTop);
            top->addLayout(info, 1);

            m_bar = new QProgressBar(this);
            m_bar->setRange(0, 1000);
            m_bar->setValue(0);
            m_bar->setTextVisible(false);
            m_bar->setToolTip(QString());
            m_bar->setFixedHeight(6);
            m_bar->setStyleSheet(QStringLiteral(
                "QProgressBar { background:rgba(0,0,0,0.08); border:none; border-radius:3px; }"
                "QProgressBar::chunk { background:#07C160; border-radius:3px; }"));

            auto *meta = new QHBoxLayout();
            meta->setContentsMargins(0, 0, 0, 0);
            meta->setSpacing(8);
            m_sizeLab = new QLabel(this);
            m_sizeLab->setStyleSheet(QStringLiteral(
                "color:#888888; font-size:11px; background:transparent; border:none;"));
            m_speedLab = new QLabel(this);
            m_speedLab->setStyleSheet(QStringLiteral(
                "color:#888888; font-size:11px; background:transparent; border:none;"));
            meta->addWidget(m_sizeLab, 1);
            meta->addWidget(m_speedLab, 0, Qt::AlignRight);

            root->addLayout(top);
            root->addWidget(m_bar);
            root->addLayout(meta);

            m_bar->hide();
            m_sizeLab->hide();
            m_speedLab->hide();

            connect(&FileCache::instance(), &FileCache::statusChanged, this, [this](qint64 id) {
                if (id == m_fileId)
                    syncUi();
            });
            connect(&FileCache::instance(), &FileCache::progress, this,
                    [this](qint64 id, qint64, qint64, double) {
                if (id == m_fileId)
                    syncUi();
            });
            connect(&FileCache::instance(), &FileCache::failed, this,
                    [this](qint64 id, const QString &error) {
                if (id != m_fileId)
                    return;
                const bool uploading = FileCache::instance().needsUpload(m_fileId)
                    || FileCache::instance().status(m_fileId) == FileCache::Uploading;
                if (!uploading)
                {
                    UiHelpers::showToast(window(),
                                         error.isEmpty() ? QStringLiteral("下载失败") : error,
                                         true);
                }
                syncUi();
            });

            onClick = [this]() {
                const QString path = FileCache::instance().localPath(m_fileId);
                if (!path.isEmpty())
                {
                    if (!QDesktopServices::openUrl(QUrl::fromLocalFile(path)))
                        UiHelpers::showToast(window(), QStringLiteral("无法打开文件"), true);
                    return;
                }
                if (FileCache::instance().needsUpload(m_fileId))
                {
                    FileCache::instance().startUpload(m_fileId);
                    return;
                }
                m_wantReceive = true;
                FileCache::instance().startDownload(m_fileId, m_url, m_mime, m_name, m_size);
                syncUi();
            };
            onSaveAs = [this]() {
                const QString src = FileCache::instance().localPath(m_fileId);
                if (src.isEmpty())
                {
                    UiHelpers::showToast(window(), QStringLiteral("请先下载文件"), true);
                    return;
                }
                const QString dest = QFileDialog::getSaveFileName(window(), QStringLiteral("保存文件"), m_name);
                if (dest.isEmpty())
                    return;
                QFile::remove(dest);
                if (!QFile::copy(src, dest))
                    UiHelpers::showToast(window(), QStringLiteral("保存失败"), true);
                else
                    UiHelpers::showToast(window(), QStringLiteral("已保存"));
            };

            syncUi();
        }

        void bindActionSlot(QWidget *slot, QLabel *sendMark)
        {
            m_actionSlot = slot;
            m_sendMark = sendMark;
            if (!m_actionSlot)
                return;
            m_dl = fileCtlBtn(m_actionSlot, false, false);
            m_pause = fileCtlBtn(m_actionSlot, true);
            m_dl->setParent(m_actionSlot);
            m_pause->setParent(m_actionSlot);
            m_dl->move(0, 0);
            m_pause->move(0, 0);
            m_dl->raise();
            m_pause->raise();
            connect(m_dl, &QPushButton::clicked, this, [this]() {
                if (FileCache::instance().needsUpload(m_fileId))
                    FileCache::instance().startUpload(m_fileId);
                else
                {
                    m_wantReceive = true;
                    FileCache::instance().startDownload(m_fileId, m_url, m_mime, m_name, m_size);
                }
            });
            connect(m_pause, &QPushButton::clicked, this, [this]() {
                if (FileCache::instance().needsUpload(m_fileId)
                    || FileCache::instance().status(m_fileId) == FileCache::Uploading)
                    FileCache::instance().cancelUpload(m_fileId);
                else
                    FileCache::instance().cancelDownload(m_fileId);
            });
            syncUi();
        }

        void refreshActionSlot()
        {
            syncUi();
        }

    private:
        void syncUi()
        {
            const FileCache::Status st = FileCache::instance().status(m_fileId);
            const bool pendingUp = m_mine && FileCache::instance().needsUpload(m_fileId);
            qint64 rec = 0, tot = m_size;
            double bps = 0;
            FileCache::instance().progressOf(m_fileId, &rec, &tot, &bps);
            if (tot <= 0)
                tot = m_size;

            const bool received = (st == FileCache::Received) && !pendingUp;
            const bool transferring = (st == FileCache::Downloading) || (st == FileCache::Uploading);
            const bool transferStarted = transferring || (rec > 0 && !received);
            const bool sentOnServer = m_mine && !pendingUp && m_fileId > 0;
            const bool showAsSent = sentOnServer && !m_wantReceive && !transferStarted;

            QString status = FileCache::statusText(st);
            if (pendingUp && st != FileCache::Uploading)
                status = QStringLiteral("已暂停");
            else if (st == FileCache::NotReceived && rec > 0)
                status = QStringLiteral("已暂停");
            if (showAsSent)
                status = QStringLiteral("已发送");
            m_statusLab->setText(status);

            if (showAsSent)
            {
                m_bar->hide();
                m_sizeLab->hide();
                m_speedLab->hide();
            }
            else if (transferStarted)
            {
                m_bar->show();
                m_sizeLab->show();
                m_speedLab->show();
                if (tot > 0)
                    m_bar->setValue(
                        static_cast<int>(qBound(qint64(0), rec * 1000 / tot, qint64(1000))));
                else
                    m_bar->setValue(0);
                m_sizeLab->setText(QStringLiteral("%1 / %2")
                                       .arg(FileCache::formatSize(rec),
                                            tot > 0 ? FileCache::formatSize(tot)
                                                    : QStringLiteral("--")));
                if (transferring)
                    m_speedLab->setText(FileCache::formatSpeed(bps));
                else
                    m_speedLab->setText(QStringLiteral("已暂停"));
            }
            else
            {
                m_bar->hide();
                m_sizeLab->hide();
                m_speedLab->hide();
            }

            if (!m_actionSlot || !m_dl || !m_pause)
                return;

            const int sendState = parentWidget()
                                      ? parentWidget()->property("sendStatus").toInt()
                                      : LocalMsg::Ok;
            const bool sendBusy = m_mine
                && (sendState == LocalMsg::Sending || sendState == LocalMsg::Failed);
            if (sendBusy)
            {
                m_dl->hide();
                m_pause->hide();
                if (m_actionSlot)
                    m_actionSlot->show();
                if (m_sendMark)
                    m_sendMark->show();
                return;
            }

            if (received || showAsSent)
            {
                m_dl->hide();
                m_pause->hide();
                if (m_sendMark)
                    m_sendMark->hide();
                if (m_actionSlot)
                    m_actionSlot->hide();
                return;
            }

            if (m_actionSlot)
                m_actionSlot->show();

            if (m_sendMark)
                m_sendMark->hide();
            m_dl->setIcon(QIcon(fileCtlIcon(false, pendingUp)));
            m_dl->setVisible(!transferring);
            m_pause->setVisible(transferring);
        }

        qint64 m_fileId = 0;
        qint64 m_size = 0;
        QString m_url;
        QString m_mime;
        QString m_name;
        bool m_mine = false;
        bool m_wantReceive = false;
        QWidget *m_actionSlot = nullptr;
        QLabel *m_sendMark = nullptr;
        QPushButton *m_dl = nullptr;
        QPushButton *m_pause = nullptr;
        QLabel *m_statusLab = nullptr;
        QProgressBar *m_bar = nullptr;
        QLabel *m_sizeLab = nullptr;
        QLabel *m_speedLab = nullptr;
    };

    inline void refreshRowFileAction(QWidget *row)
    {
        if (!row)
            return;
        if (auto *fb = row->findChild<FileBubble *>(QStringLiteral("fileBubble")))
            fb->refreshActionSlot();
    }

    using ElideLabel = UiHelpers::ElideLabel;

    class TrayPreviewRow : public QWidget
    {
    public:
        std::function<void()> onActivate;

        explicit TrayPreviewRow(QWidget *parent = nullptr)
            : QWidget(parent)
        {
            setAttribute(Qt::WA_Hover);
            setCursor(Qt::PointingHandCursor);
            setAutoFillBackground(true);
            setMinimumHeight(48);
            applyHover(false);
        }

    protected:
        void enterEvent(QEvent *event) override
        {
            applyHover(true);
            QWidget::enterEvent(event);
        }

        void leaveEvent(QEvent *event) override
        {
            applyHover(false);
            QWidget::leaveEvent(event);
        }

        void mouseReleaseEvent(QMouseEvent *event) override
        {
            if (event->button() == Qt::LeftButton && rect().contains(event->pos()) && onActivate)
                onActivate();
            QWidget::mouseReleaseEvent(event);
        }

    private:
        void applyHover(bool on)
        {
            QPalette pal = palette();
            pal.setColor(QPalette::Window, on ? QColor("#F2F2F2") : QColor("#FFFFFF"));
            setPalette(pal);
        }
    };

    inline QPixmap navIcon(int kind, const QColor &color)
    {
        const int size = 22;
        QPixmap pm(size, size);
        pm.fill(Qt::transparent);
        QPainter p(&pm);
        p.setRenderHint(QPainter::Antialiasing, true);
        p.setPen(QPen(color, 1.6));
        p.setBrush(Qt::NoBrush);
        if (kind == 0)
        {
            p.drawRoundedRect(QRectF(2.5, 3.5, 17, 12.5), 2.5, 2.5);
            QPainterPath tail;
            tail.moveTo(6.5, 16);
            tail.lineTo(8.5, 20);
            tail.lineTo(12, 16);
            p.setBrush(color);
            p.setPen(Qt::NoPen);
            p.drawPath(tail);
        }
        else if (kind == 1)
        {
            p.drawEllipse(QRectF(6.5, 3.2, 9, 9));
            p.drawArc(QRect(3, 12, 16, 12), 20 * 16, 140 * 16);
        }
        else if (kind == 3)
        {
            QPolygonF star;
            for (int i = 0; i < 5; ++i)
            {
                const qreal a = -1.5707963 + i * 1.25663706;
                star << QPointF(11 + qCos(a) * 8.2, 11 + qSin(a) * 8.2);
                const qreal b = a + 0.62831853;
                star << QPointF(11 + qCos(b) * 3.4, 11 + qSin(b) * 3.4);
            }
            p.setBrush(color);
            p.setPen(Qt::NoPen);
            p.drawPolygon(star);
        }
        else
        {
            const QPointF c(11, 11);
            for (int i = 0; i < 6; ++i)
            {
                const qreal a = i * 3.14159265 / 3.0;
                const QPointF d(qCos(a), qSin(a));
                p.drawLine(c + d * 5.2, c + d * 8.6);
            }
            p.drawEllipse(QRectF(6.6, 6.6, 8.8, 8.8));
            p.drawEllipse(QRectF(8.6, 8.6, 4.8, 4.8));
        }
        return pm;
    }

    inline QPixmap chatToolIcon(int kind, const QColor &color, int size = 20)
    {
        const qreal dpr = qApp ? qApp->devicePixelRatio() : 1.0;
        QPixmap pm(qRound(size * dpr), qRound(size * dpr));
        pm.fill(Qt::transparent);
        pm.setDevicePixelRatio(dpr);
        QPainter p(&pm);
        p.setRenderHint(QPainter::Antialiasing, true);
        p.setPen(QPen(color, 1.5, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
        p.setBrush(Qt::NoBrush);
        const qreal s = size;
        if (kind == 0)
        {
            p.drawEllipse(QRectF(2.2, 3.2, s - 4.4, s - 5.2));
            p.drawArc(QRectF(5.5, 7.5, s - 11.0, s - 12.0), 200 * 16, 140 * 16);
            p.setBrush(color);
            p.setPen(Qt::NoPen);
            p.drawEllipse(QRectF(6.4, 7.2, 2.2, 2.2));
            p.drawEllipse(QRectF(s - 8.6, 7.2, 2.2, 2.2));
        }
        else if (kind == 1)
        {
            p.drawRoundedRect(QRectF(2.5, 4.2, s - 5.0, s - 8.0), 2.0, 2.0);
            p.setBrush(color);
            p.setPen(Qt::NoPen);
            p.drawEllipse(QRectF(5.2, 6.4, 3.0, 3.0));
            QPolygonF hill;
            hill << QPointF(3.6, s - 5.2) << QPointF(8.2, 10.2) << QPointF(11.2, 13.0)
                 << QPointF(14.4, 9.4) << QPointF(s - 3.6, s - 5.2);
            p.drawPolygon(hill);
        }
        else
        {
            p.drawRoundedRect(QRectF(5.0, 2.8, s - 9.2, s - 5.4), 1.2, 1.2);
            p.drawLine(QPointF(5.0, 6.4), QPointF(s - 4.2, 6.4));
            p.drawLine(QPointF(7.4, 9.4), QPointF(s - 7.2, 9.4));
            p.drawLine(QPointF(7.4, 12.2), QPointF(s - 7.2, 12.2));
        }
        return pm;
    }

    inline QPixmap settingsNavIcon()
    {
        static QPixmap cached;
        if (!cached.isNull())
            return cached;
        QPixmap src(QStringLiteral(":/icons/settings.png"));
        if (src.isNull())
        {
            cached = navIcon(2, QColor("#A6A6A6"));
            return cached;
        }
        QImage img = src.toImage().convertToFormat(QImage::Format_ARGB32);
        for (int y = 0; y < img.height(); ++y)
        {
            auto *line = reinterpret_cast<QRgb *>(img.scanLine(y));
            for (int x = 0; x < img.width(); ++x)
            {
                if (qRed(line[x]) < 40 && qGreen(line[x]) < 40 && qBlue(line[x]) < 40)
                    line[x] = qRgba(0, 0, 0, 0);
            }
        }
        cached = QPixmap::fromImage(img).scaled(22, 22, Qt::KeepAspectRatio, Qt::SmoothTransformation);
        return cached;
    }

    inline QPushButton *navBtn(int kind, const QString &tip, QWidget *parent, bool checkable = true)
    {
        auto *btn = new QPushButton(parent);
        btn->setCheckable(checkable);
        btn->setFixedSize(56, 48);
        btn->setCursor(Qt::PointingHandCursor);
        btn->setIconSize(QSize(22, 22));
        btn->setIcon(QIcon(kind == 2 ? settingsNavIcon() : navIcon(kind, QColor("#A6A6A6"))));
        btn->setStyleSheet(QStringLiteral(
            "QPushButton { background:transparent; border:none; border-radius:0; padding:0; }"
            "QPushButton:hover { background:#3A3A3A; }"
            "QPushButton:checked { background:transparent; }"));
        if (checkable)
        {
            QObject::connect(btn, &QPushButton::toggled, btn, [btn, kind](bool on) {
                btn->setIcon(QIcon(navIcon(kind, on ? QColor("#07C160") : QColor("#A6A6A6"))));
            });
        }
        return btn;
    }

    inline QLabel *makeOnlineDot(QWidget *parent, bool online)
    {
        auto *dot = new QLabel(parent);
        dot->setFixedSize(8, 8);
        dot->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
        dot->setAttribute(Qt::WA_StyledBackground, true);
        dot->setStyleSheet(online
            ? QStringLiteral("background:#07C160; border:none; border-radius:4px;")
            : QStringLiteral("background:#C8C8C8; border:none; border-radius:4px;"));
        return dot;
    }

    inline Conv convFromItem(const QListWidgetItem *item)
    {
        Conv c;
        c.uid = item->data(RolePeerUid).toLongLong();
        c.name = item->data(RoleName).toString();
        c.preview = item->data(RolePreview).toString();
        c.time = formatTs(item->data(RoleTs).toLongLong());
        c.unread = item->data(RoleUnread).toInt();
        c.avatarVer = item->data(RoleAvatarVer).toInt();
        c.online = item->data(RoleOnline).toInt() == 1;
        return c;
    }

    inline bool listOnlineOf(const QListWidget *list, qint64 uid)
    {
        if (!list)
            return false;
        for (int i = 0; i < list->count(); ++i)
        {
            auto *item = list->item(i);
            if (item && item->data(RolePeerUid).toLongLong() == uid)
                return item->data(RoleOnline).toInt() == 1;
        }
        return false;
    }

    inline QIcon blankTrayIcon()
    {
        QPixmap pm(32, 32);
        pm.fill(Qt::transparent);
        return QIcon(pm);
    }

    inline QWidget *makeFriendRow(const QString &name, bool online, qint64 uid, int avatarVer, QWidget *parent)
    {
        auto *row = new QWidget(parent);
        row->setFixedHeight(48);
        row->setMinimumWidth(0);
        row->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed);
        row->setAttribute(Qt::WA_TranslucentBackground);
        row->setStyleSheet(QStringLiteral("background:transparent;"));

        auto *lay = new QHBoxLayout(row);
        lay->setContentsMargins(12, 8, 12, 8);
        lay->setSpacing(10);

        auto *avatar = new QLabel(row);
        avatar->setFixedSize(32, 32);
        avatar->setPixmap(AvatarCache::instance().pixmap(uid, avatarVer, name, 32));

        auto *nameLab = new ElideLabel(name, row);
        nameLab->setStyleSheet(QStringLiteral("color:#191919; font-size:14px; background:transparent;"));

        lay->addWidget(avatar, 0, Qt::AlignVCenter);
        lay->addWidget(nameLab, 1, Qt::AlignVCenter);
        if (online)
            lay->addWidget(makeOnlineDot(row, true), 0, Qt::AlignVCenter);
        return row;
    }

    inline QWidget *makeConvRow(const Conv &c, QWidget *parent)
    {
        auto *row = new QWidget(parent);
        row->setFixedHeight(68);
        row->setMinimumWidth(0);
        row->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed);
        row->setAttribute(Qt::WA_TranslucentBackground);
        row->setStyleSheet(QStringLiteral("background:transparent;"));

        auto *grid = new QGridLayout(row);
        grid->setContentsMargins(12, 10, 12, 10);
        grid->setHorizontalSpacing(10);
        grid->setVerticalSpacing(3);
        grid->setColumnStretch(1, 1);
        grid->setColumnMinimumWidth(1, 0);

        auto *avatarBox = new QWidget(row);
        avatarBox->setFixedSize(44, 44);
        auto *avatar = new QLabel(avatarBox);
        avatar->setGeometry(0, 0, 40, 40);
        avatar->setPixmap(AvatarCache::instance().pixmap(c.uid, c.avatarVer, c.name, 40));
        avatar->setScaledContents(false);
        if (c.online)
        {
            auto *dot = makeOnlineDot(avatarBox, true);
            dot->setFixedSize(10, 10);
            dot->move(30, 30);
            dot->setStyleSheet(QStringLiteral(
                "background:#07C160; border:2px solid #FFFFFF; border-radius:5px;"));
            dot->raise();
        }
        if (c.unread > 0)
        {
            auto *badge = new QLabel(c.unread > 99 ? QStringLiteral("99") : QString::number(c.unread), avatarBox);
            badge->setObjectName(QStringLiteral("unreadBadge"));
            badge->setAlignment(Qt::AlignCenter);
            badge->setFixedSize(16, 16);
            badge->move(28, 0);
            badge->setStyleSheet(QStringLiteral(
                "background:#FA5151; color:#FFFFFF; font-size:10px; border:none; border-radius:8px;"));
            badge->raise();
        }

        auto *nameRow = new QWidget(row);
        nameRow->setMinimumWidth(0);
        nameRow->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Preferred);
        nameRow->setStyleSheet(QStringLiteral("background:transparent;"));
        auto *nameLay = new QHBoxLayout(nameRow);
        nameLay->setContentsMargins(0, 0, 0, 0);
        nameLay->setSpacing(6);
        auto *name = new ElideLabel(c.name, nameRow);
        name->setStyleSheet(QStringLiteral("color:#191919; font-size:14px; background:transparent;"));
        nameLay->addWidget(name, 1, Qt::AlignVCenter);

        auto *prevWrap = new QWidget(row);
        prevWrap->setMinimumWidth(0);
        prevWrap->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Preferred);
        prevWrap->setStyleSheet(QStringLiteral("background:transparent;"));
        auto *prevLay = new QHBoxLayout(prevWrap);
        prevLay->setContentsMargins(0, 0, 0, 0);
        prevLay->setSpacing(4);
        QString previewText = c.preview;
        int iconKind = -1;
        if (previewText.startsWith(QStringLiteral("[表情]")))
        {
            iconKind = 0;
            previewText = previewText.mid(4);
            if (previewText.isEmpty())
                previewText = QStringLiteral("表情");
        }
        else if (previewText.startsWith(QStringLiteral("[图片]")))
        {
            iconKind = 1;
            previewText = previewText.mid(4);
            if (previewText.isEmpty())
                previewText = QStringLiteral("图片");
        }
        else if (previewText.startsWith(QStringLiteral("[文件]")))
        {
            iconKind = 2;
            previewText = previewText.mid(4).trimmed();
            if (previewText.isEmpty())
                previewText = QStringLiteral("文件");
        }
        if (iconKind >= 0)
        {
            auto *ic = new QLabel(prevWrap);
            ic->setFixedSize(14, 14);
            ic->setPixmap(chatToolIcon(iconKind, QColor("#9A9A9A"), 14));
            ic->setStyleSheet(QStringLiteral("background:transparent; border:none;"));
            prevLay->addWidget(ic, 0, Qt::AlignVCenter);
        }
        auto *preview = new ElideLabel(previewText, prevWrap);
        preview->setStyleSheet(QStringLiteral("color:#9A9A9A; font-size:12px; background:transparent;"));
        prevLay->addWidget(preview, 1);

        auto *time = new QLabel(c.time, row);
        time->setStyleSheet(QStringLiteral("color:#B2B2B2; font-size:11px; background:transparent;"));
        time->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
        time->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
        time->setMinimumWidth(time->fontMetrics().horizontalAdvance(
            c.time.isEmpty() ? QStringLiteral("00:00") : c.time));

        grid->addWidget(avatarBox, 0, 0, 2, 1, Qt::AlignVCenter);
        grid->addWidget(nameRow, 0, 1);
        grid->addWidget(time, 0, 2, Qt::AlignRight | Qt::AlignVCenter);
        grid->addWidget(prevWrap, 1, 1, 1, 2);
        return row;
    }
}  // namespace ClientInternal