chore: savepoint

qt/CMakeLists.txt

@@ -61,6 +61,8 @@ target_sources(${TR_NAME}-qt
         MainWindow.h
         MakeDialog.cc
         MakeDialog.h
+        NativeIcon.cc
+        NativeIcon.h
         OptionsDialog.cc
         OptionsDialog.h
         PathButton.cc

qt/FilterBar.cc

@@ -19,6 +19,7 @@
 #include "FilterBarComboBoxDelegate.h"
 #include "Filters.h"
 #include "IconCache.h"
+#include "NativeIcon.h"
 #include "Prefs.h"
 #include "Torrent.h"
 #include "TorrentFilter.h"
@@ -37,6 +38,8 @@ enum
 
 FilterBarComboBox* FilterBar::createActivityCombo()
 {
+    auto* const style = QApplication::style();
+
     auto* c = new FilterBarComboBox{ this };
     auto* delegate = new FilterBarComboBoxDelegate{ this, c };
     c->setItemDelegate(delegate);
@@ -51,32 +54,58 @@ FilterBarComboBox* FilterBar::createActivityCombo()
     FilterBarComboBoxDelegate::setSeparator(model, model->index(1, 0));
 
     auto const& icons = IconCache::get();
+#if 0
+struct NativeIcon
+{
+    using 
+public:
+    struct Spec
+    {
+        // https://developer.apple.com/sf-symbols
+        // https://github.com/andrewtavis/sf-symbols-online
+        QString sfSymbolName;
 
-    row = new QStandardItem{ icons.getThemeIcon(QStringLiteral("system-run")), tr("Active") };
+        // https://learn.microsoft.com/en-us/windows/apps/design/style/segoe-fluent-icons-font
+        QString fluentCodepoint;
+
+        // https://specifications.freedesktop.org/icon-naming/latest/#names
+        QString fdoName;
+
+        // https://doc.qt.io/qt-6/qstyle.html#StandardPixmap-enum
+        std::optional<QStyle::StandardPixmap> fallback;
+
+        QFont::Weight weight = QFont::Normal;
+    };
+
+    static QIcon get(const Spec& spec, QStyle* style = QApplication::style());
+};
+#endif
+
+    row = new QStandardItem{ NativeIcon::get({ QStringLiteral("play.fill"), QStringLiteral("e768"), QStringLiteral("media-playback-start"), QStyle::SP_MediaPlay }), tr("Active") };
     row->setData(FilterMode::SHOW_ACTIVE, ACTIVITY_ROLE);
     model->appendRow(row);
 
-    row = new QStandardItem{ icons.getThemeIcon(QStringLiteral("go-down")), tr("Downloading") };
-    row->setData(FilterMode::SHOW_DOWNLOADING, ACTIVITY_ROLE);
-    model->appendRow(row);
-
-    row = new QStandardItem{ icons.getThemeIcon(QStringLiteral("go-up")), tr("Seeding") };
+    row = new QStandardItem{ NativeIcon::get({ QStringLiteral("chevron.up"), QStringLiteral("e70e"), QStringLiteral("go-up"), QStyle::SP_ArrowUp }), tr("Seeding") };
     row->setData(FilterMode::SHOW_SEEDING, ACTIVITY_ROLE);
     model->appendRow(row);
 
-    row = new QStandardItem{ icons.getThemeIcon(QStringLiteral("media-playback-pause")), tr("Paused") };
+    row = new QStandardItem{ NativeIcon::get({ QStringLiteral("chevron.down"), QStringLiteral("e70d"), QStringLiteral("go-down"), QStyle::SP_ArrowUp }), tr("Downloading") };
+    row->setData(FilterMode::SHOW_DOWNLOADING, ACTIVITY_ROLE);
+    model->appendRow(row);
+
+    row = new QStandardItem{ NativeIcon::get({ QStringLiteral("pause.fill"), QStringLiteral("e769"), QStringLiteral("media-playback-pause"), QStyle::SP_MediaPause }), tr("Paused") };
     row->setData(FilterMode::SHOW_PAUSED, ACTIVITY_ROLE);
     model->appendRow(row);
 
-    row = new QStandardItem{ icons.getThemeIcon(QStringLiteral("dialog-ok")), tr("Finished") };
+    row = new QStandardItem{ tr("Finished") };
     row->setData(FilterMode::SHOW_FINISHED, ACTIVITY_ROLE);
     model->appendRow(row);
 
-    row = new QStandardItem{ icons.getThemeIcon(QStringLiteral("view-refresh")), tr("Verifying") };
+    row = new QStandardItem{ NativeIcon::get({ QStringLiteral("arrow.clockwise"), QStringLiteral("e72c"), QStringLiteral("view-refresh"), QStyle::SP_BrowserReload }), tr("Verifying") };
     row->setData(FilterMode::SHOW_VERIFYING, ACTIVITY_ROLE);
     model->appendRow(row);
 
-    row = new QStandardItem{ icons.getThemeIcon(QStringLiteral("process-stop")), tr("Error") };
+    row = new QStandardItem{ NativeIcon::get({ tr("xmark.circle"), QStringLiteral("eb90"), QStringLiteral("dialog-error"), QStyle::SP_MessageBoxWarning }), tr("Error") };
     row->setData(FilterMode::SHOW_ERROR, ACTIVITY_ROLE);
     model->appendRow(row);
 

qt/NativeIcon.cc

@@ -0,0 +1,130 @@
+// This file Copyright © Mnemosyne LLC.
+// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
+// or any future license endorsed by Mnemosyne LLC.
+// License text can be found in the licenses/ folder.
+
+#include "NativeIcon.h"
+
+#include <iostream>
+
+#include <QtGui/QIcon>
+#include <QtGui/QPixmap>
+#include <QtGui/QPainter>
+#include <QtGui/QFont>
+#include <QtGui/QGuiApplication>
+#include <QtGui/QPalette>
+
+namespace
+{
+
+#if defined(Q_OS_WIN)
+QChar parseCodepoint(QString const& code)
+{
+    // Supports "E710" or "\uE710"
+    QString s = code.trimmed();
+    if (s.startsWith("\\u", Qt::CaseInsensitive))
+        s = s.mid(2);
+    bool ok = false;
+    uint u = s.toUInt(&ok, 16);
+    return ok ? QChar(u) : QChar();
+}
+
+QPixmap makeFluentPixmap(QString const& codepointHex, int const pointSize)
+{
+    if (codepointHex.isEmpty())
+        return {};
+
+    const QChar glyph = parseCodepoint(codepointHex);
+    if (glyph.isNull())
+        return {};
+
+    // Prefer Segoe Fluent Icons (Win11), fall back to Segoe MDL2 Assets (Win10)
+    QFont font;
+    font.setPointSize(pointSize);
+    font.setStyleStrategy(QFont::PreferDefault);
+
+    // Try Fluent first
+    font.setFamily("Segoe Fluent Icons");
+    if (!QFontInfo(font).exactMatch()) {
+        font.setFamily("Segoe MDL2 Assets");
+    }
+
+    auto const dpr = qApp->primaryScreen()->devicePixelRatio();
+    auto const px = qRound(pointSize * dpr) + 8; // padding
+    QPixmap pm{px, px};
+    pm.setDevicePixelRatio(dpr);
+    pm.fill(Qt::transparent);
+
+    auto const fg = qApp->palette().color(QPalette::ButtonText);
+    QPainter p{&pm};
+    p.setRenderHint(QPainter::Antialiasing, true);
+    p.setPen(Qt::NoPen);
+    p.setBrush(fg);
+    p.setFont(font);
+
+    // Center the glyph
+    QRectF r(0, 0, pm.width() / dpr, pm.height() / dpr);
+    p.drawText(r, Qt::AlignCenter, QString(glyph));
+    p.end();
+
+    return QIcon{pm};
+}
+# endif  // Q_OS_WIN
+
+}  // namespace
+
+QIcon NativeIcon::get(Spec const& spec, QStyle* style)
+{
+#if defined(Q_OS_WIN) || defined(Q_OS_MAC)
+    auto constexpr auto IconMetrics = std::array<QStyle::PixelMetric, 7U>{{
+        QStyle::PM_ButtonIconSize
+        QStyle::PM_LargeIconSize,
+        QStyle::PM_ListViewIconSize,
+        QStyle::PM_MessageBoxIconSize,
+        QStyle::PM_SmallIconSize,
+        QStyle::PM_TabBarIconSize,
+        QStyle::PM_ToolBarIconSize,
+    }};
+
+    auto dipSizes = std::set<QSize>{};
+    for (auto const pm : IconMetrics) {
+        auto const dip = style->pixelMetric(pm);
+        dipSizes.emplace(dip, dip);
+    }
+#endif
+
+#if defined(Q_OS_MAC)
+    // TODO: try sfSymbolName if on macOS
+    // https://stackoverflow.com/questions/74747658/how-to-convert-a-cgimageref-to-a-qpixmap-in-qt-6
+#endif
+
+#if defined(Q_OS_WIN)
+    if (!spec.fluentCodepoint.isEmpty()) {
+        auto icon = QIcon{};
+        for (auto const dipSize : dipSizes)
+            if (auto pixmap = makeFluentIcon(spec.fluentCodepoint, dipSize); !pixmap.isNull())
+                icon.addPixmap(pixmap);
+        if (!icon.isNull())
+            return icon;
+    }
+#endif
+
+    if (!spec.fdoName.isEmpty()) {
+        if (auto icon = QIcon::fromTheme(spec.fdoName + QStringLiteral("-symbolic")); !icon.isNull()) {
+            std::cerr << "using fdo" << std::endl;
+            return icon;
+        } else {
+            std::cerr << "QIcon::fromTheme(" << qPrintable(spec.fdoName) << ") returned empty" << std::endl;
+        }
+    }
+
+    if (spec.fallback) {
+        if (auto icon = style->standardIcon(*spec.fallback); !icon.isNull()) {
+            std::cerr << "Qt Standard Icon" << std::endl;
+            return icon;
+        }
+    }
+
+    std::cerr << "no match" << std::endl;
+    return {};
+}

qt/NativeIcon.h

@@ -0,0 +1,37 @@
+// This file Copyright © Mnemosyne LLC.
+// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
+// or any future license endorsed by Mnemosyne LLC.
+// License text can be found in the licenses/ folder.
+
+#pragma once
+
+#include <optional>
+
+#include <QApplication>
+#include <QFont>
+#include <QString>
+#include <QStyle>
+
+struct NativeIcon
+{
+public:
+    struct Spec
+    {
+        // https://developer.apple.com/sf-symbols
+        // https://github.com/andrewtavis/sf-symbols-online
+        QString sfSymbolName;
+
+        // https://learn.microsoft.com/en-us/windows/apps/design/style/segoe-fluent-icons-font
+        QString fluentCodepoint;
+
+        // https://specifications.freedesktop.org/icon-naming/latest/#names
+        QString fdoName;
+
+        // https://doc.qt.io/qt-6/qstyle.html#StandardPixmap-enum
+        std::optional<QStyle::StandardPixmap> fallback;
+
+        QFont::Weight weight = QFont::Normal; 
+    };
+
+    static QIcon get(const Spec& spec, QStyle* style = QApplication::style());
+};