Merge pull request #14543 from Chocobo1/cleanup

Simplify progress bar painting

src/gui/CMakeLists.txt

@@ -26,7 +26,7 @@ add_library(qbt_gui STATIC
     powermanagement/powermanagement.h
     previewlistdelegate.h
     previewselectdialog.h
-    progressbardelegate.h
+    progressbarpainter.h
     properties/downloadedpiecesbar.h
     properties/peerlistsortmodel.h
     properties/peerlistwidget.h
@@ -106,7 +106,7 @@ add_library(qbt_gui STATIC
     powermanagement/powermanagement.cpp
     previewlistdelegate.cpp
     previewselectdialog.cpp
-    progressbardelegate.cpp
+    progressbarpainter.cpp
     properties/downloadedpiecesbar.cpp
     properties/peerlistsortmodel.cpp
     properties/peerlistwidget.cpp

src/gui/gui.pri

@@ -27,7 +27,7 @@ HEADERS += \
     $$PWD/powermanagement/powermanagement.h \
     $$PWD/previewlistdelegate.h \
     $$PWD/previewselectdialog.h \
-    $$PWD/progressbardelegate.h \
+    $$PWD/progressbarpainter.h \
     $$PWD/properties/downloadedpiecesbar.h \
     $$PWD/properties/peerlistsortmodel.h \
     $$PWD/properties/peerlistwidget.h \
@@ -107,7 +107,7 @@ SOURCES += \
     $$PWD/powermanagement/powermanagement.cpp \
     $$PWD/previewlistdelegate.cpp \
     $$PWD/previewselectdialog.cpp \
-    $$PWD/progressbardelegate.cpp \
+    $$PWD/progressbarpainter.cpp \
     $$PWD/properties/downloadedpiecesbar.cpp \
     $$PWD/properties/peerlistsortmodel.cpp \
     $$PWD/properties/peerlistwidget.cpp \

src/gui/previewlistdelegate.cpp

@@ -28,18 +28,11 @@
 
 #include "previewlistdelegate.h"
 
-#include <QApplication>
 #include <QModelIndex>
 #include <QPainter>
-#include <QStyleOptionProgressBar>
 #include <QStyleOptionViewItem>
 
-#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
-#include <QProxyStyle>
-#endif
-
 #include "base/utils/misc.h"
-#include "base/utils/string.h"
 #include "previewselectdialog.h"
 
 PreviewListDelegate::PreviewListDelegate(QObject *parent)
@@ -63,28 +56,17 @@ void PreviewListDelegate::paint(QPainter *painter, const QStyleOptionViewItem &o
     case PreviewSelectDialog::PROGRESS:
         {
             const qreal progress = (index.data().toReal() * 100);
+            const QString text = (progress >= 100)
+                ? QString::fromLatin1("100%")
+                : (Utils::String::fromDouble(progress, 1) + '%');
 
-            QStyleOptionProgressBar newopt;
-            newopt.rect = opt.rect;
-            newopt.text = ((progress == 100) ? QString("100%") : (Utils::String::fromDouble(progress, 1) + '%'));
-            newopt.progress = static_cast<int>(progress);
-            newopt.maximum = 100;
-            newopt.minimum = 0;
-            newopt.state |= QStyle::State_Enabled;
-            newopt.textVisible = true;
-
-#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
-            // XXX: To avoid having the progress text on the right of the bar
-            QProxyStyle st("fusion");
-            st.drawControl(QStyle::CE_ProgressBar, &newopt, painter, 0);
-#else
-            QApplication::style()->drawControl(QStyle::CE_ProgressBar, &newopt, painter);
-#endif
+            m_progressBarPainter.paint(painter, option, text, static_cast<int>(progress));
         }
         break;
 
     default:
         QItemDelegate::paint(painter, option, index);
+        break;
     }
 
     painter->restore();

src/gui/previewlistdelegate.h

@@ -30,6 +30,8 @@
 
 #include <QItemDelegate>
 
+#include "progressbarpainter.h"
+
 class PreviewListDelegate final : public QItemDelegate
 {
     Q_OBJECT
@@ -38,7 +40,9 @@ class PreviewListDelegate final : public QItemDelegate
 public:
     explicit PreviewListDelegate(QObject *parent = nullptr);
 
-private:
     void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
     QWidget *createEditor(QWidget *, const QStyleOptionViewItem &, const QModelIndex &) const override;
+
+private:
+    ProgressBarPainter m_progressBarPainter;
 };

src/gui/progressbarpainter.cpp

@@ -26,49 +26,46 @@
  * exception statement from your version.
  */
 
-#include "progressbardelegate.h"
+#include "progressbarpainter.h"
 
-#include <QApplication>
-#include <QModelIndex>
 #include <QPainter>
+#include <QPalette>
+#include <QStyleOptionProgressBar>
 #include <QStyleOptionViewItem>
 
 #if (defined(Q_OS_WIN) || defined(Q_OS_MACOS))
 #include <QProxyStyle>
 #endif
 
-ProgressBarDelegate::ProgressBarDelegate(const int progressColumn, const int dataRole, QObject *parent)
-    : QStyledItemDelegate {parent}
-    , m_progressColumn {progressColumn}
-    , m_dataRole {dataRole}
+ProgressBarPainter::ProgressBarPainter()
 {
 #if (defined(Q_OS_WIN) || defined(Q_OS_MACOS))
-    m_dummyProgressBar.setStyle(new QProxyStyle {"fusion"});
+    auto *fusionStyle = new QProxyStyle {"fusion"};
+    fusionStyle->setParent(&m_dummyProgressBar);
+    m_dummyProgressBar.setStyle(fusionStyle);
 #endif
 }
 
-void ProgressBarDelegate::initProgressStyleOption(QStyleOptionProgressBar &option, const QModelIndex &index) const
+void ProgressBarPainter::paint(QPainter *painter, const QStyleOptionViewItem &option, const QString &text, const int progress) const
 {
-    option.text = index.data().toString();
-    option.progress = static_cast<int>(index.data(m_dataRole).toReal());
-    option.maximum = 100;
-    option.minimum = 0;
-    option.textVisible = true;
-}
-
-void ProgressBarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
-{
-    if (index.column() != m_progressColumn)
-        return QStyledItemDelegate::paint(painter, option, index);
+    QStyleOptionProgressBar styleOption;
+    styleOption.initFrom(&m_dummyProgressBar);
+    // QStyleOptionProgressBar fields
+    styleOption.maximum = 100;
+    styleOption.minimum = 0;
+    styleOption.progress = progress;
+    styleOption.text = text;
+    styleOption.textVisible = true;
+    // QStyleOption fields
+    styleOption.rect = option.rect;
+    styleOption.state = option.state;
 
-    QStyleOptionProgressBar newopt;
-    newopt.initFrom(&m_dummyProgressBar);
-    newopt.rect = option.rect;
-    newopt.state = option.state;
-    initProgressStyleOption(newopt, index);
+    const bool isEnabled = option.state.testFlag(QStyle::State_Enabled);
+    styleOption.palette.setCurrentColorGroup(isEnabled ? QPalette::Active : QPalette::Disabled);
 
     painter->save();
-    m_dummyProgressBar.style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter);
-    m_dummyProgressBar.style()->drawControl(QStyle::CE_ProgressBar, &newopt, painter, &m_dummyProgressBar);
+    const QStyle *style = m_dummyProgressBar.style();
+    style->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter);
+    style->drawControl(QStyle::CE_ProgressBar, &styleOption, painter, &m_dummyProgressBar);
     painter->restore();
 }

src/gui/progressbarpainter.h

@@ -29,23 +29,17 @@
 #pragma once
 
 #include <QProgressBar>
-#include <QStyledItemDelegate>
 
-class QStyleOptionProgressBar;
+class QStyleOptionViewItem;
 
-class ProgressBarDelegate : public QStyledItemDelegate
+class ProgressBarPainter
 {
 public:
-    ProgressBarDelegate(int progressColumn, int dataRole, QObject *parent = nullptr);
+    ProgressBarPainter();
 
-protected:
-    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
-    virtual void initProgressStyleOption(QStyleOptionProgressBar &option, const QModelIndex &index) const;
+    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QString &text, int progress) const;
 
 private:
-    const int m_progressColumn;
-    const int m_dataRole;
-
     // for painting progressbar with stylesheet option, a dummy progress bar is required
     QProgressBar m_dummyProgressBar;
 };

src/gui/properties/proplistdelegate.cpp

@@ -28,61 +28,22 @@
 
 #include "proplistdelegate.h"
 
-#include <QApplication>
 #include <QComboBox>
 #include <QModelIndex>
 #include <QPainter>
-#include <QPalette>
 #include <QProgressBar>
-#include <QStyleOptionProgressBar>
-
-#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
-#include <QProxyStyle>
-#endif
 
 #include "base/bittorrent/downloadpriority.h"
 #include "base/bittorrent/torrent.h"
 #include "gui/torrentcontentmodel.h"
 #include "propertieswidget.h"
 
-namespace
-{
-    QPalette progressBarDisabledPalette()
-    {
-        static const QPalette palette = []()
-        {
-            QProgressBar bar;
-            bar.setEnabled(false);
-            QStyleOptionProgressBar opt;
-            opt.initFrom(&bar);
-            return opt.palette;
-        }();
-        return palette;
-    }
-}
-
 PropListDelegate::PropListDelegate(PropertiesWidget *properties)
-    : ProgressBarDelegate {PROGRESS, TorrentContentModel::UnderlyingDataRole, properties}
-    , m_properties(properties)
+    : QStyledItemDelegate {properties}
+    , m_properties {properties}
 {
 }
 
-void PropListDelegate::initProgressStyleOption(QStyleOptionProgressBar &option, const QModelIndex &index) const
-{
-    ProgressBarDelegate::initProgressStyleOption(option, index);
-    const int priority
-        = index.sibling(index.row(), PRIORITY).data(TorrentContentModel::UnderlyingDataRole).toInt();
-    if (static_cast<BitTorrent::DownloadPriority>(priority) == BitTorrent::DownloadPriority::Ignored)
-    {
-        option.state &= ~QStyle::State_Enabled;
-        option.palette = progressBarDisabledPalette();
-    }
-    else
-    {
-        option.state |= QStyle::State_Enabled;
-    }
-}
-
 void PropListDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
 {
     auto *combobox = static_cast<QComboBox *>(editor);
@@ -156,3 +117,25 @@ void PropListDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionV
 {
     editor->setGeometry(option.rect);
 }
+
+void PropListDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+    switch (index.column())
+    {
+    case PropColumn::PROGRESS:
+        {
+            const int progress = static_cast<int>(index.data(TorrentContentModel::UnderlyingDataRole).toReal());
+            const int priority = index.sibling(index.row(), PropColumn::PRIORITY).data(TorrentContentModel::UnderlyingDataRole).toInt();
+            const bool isEnabled = static_cast<BitTorrent::DownloadPriority>(priority) != BitTorrent::DownloadPriority::Ignored;
+
+            QStyleOptionViewItem customOption {option};
+            customOption.state.setFlag(QStyle::State_Enabled, isEnabled);
+
+            m_progressBarPainter.paint(painter, customOption, index.data().toString(), progress);
+        }
+        break;
+    default:
+        QStyledItemDelegate::paint(painter, option, index);
+        break;
+    }
+}

src/gui/properties/proplistdelegate.h

@@ -28,11 +28,12 @@
 
 #pragma once
 
-#include "gui/progressbardelegate.h"
+#include <QStyledItemDelegate>
+
+#include "gui/progressbarpainter.h"
 
 class QAbstractItemModel;
 class QModelIndex;
-class QPainter;
 class QStyleOptionViewItem;
 
 class PropertiesWidget;
@@ -48,25 +49,26 @@ enum PropColumn
     AVAILABILITY
 };
 
-class PropListDelegate final : public ProgressBarDelegate
+class PropListDelegate final : public QStyledItemDelegate
 {
     Q_OBJECT
+    Q_DISABLE_COPY(PropListDelegate)
 
 public:
     explicit PropListDelegate(PropertiesWidget *properties);
 
     void setEditorData(QWidget *editor, const QModelIndex &index) const override;
-    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem & /* option */, const QModelIndex &index) const override;
+    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
+    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
 
 public slots:
     void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override;
-    void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex & /* index */) const override;
+    void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
 
 signals:
     void filteredFilesChanged() const;
 
 private:
-    void initProgressStyleOption(QStyleOptionProgressBar &option, const QModelIndex &index) const override;
-
     PropertiesWidget *m_properties;
+    ProgressBarPainter m_progressBarPainter;
 };

src/gui/transferlistdelegate.cpp

@@ -33,7 +33,7 @@
 #include "transferlistmodel.h"
 
 TransferListDelegate::TransferListDelegate(QObject *parent)
-    : ProgressBarDelegate {TransferListModel::TR_PROGRESS, TransferListModel::UnderlyingDataRole, parent}
+    : QStyledItemDelegate {parent}
 {
 }
 
@@ -61,3 +61,20 @@ QSize TransferListDelegate::sizeHint(const QStyleOptionViewItem &option, const Q
     size.setHeight(std::max(nameColHeight, size.height()));
     return size;
 }
+
+void TransferListDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+    switch (index.column())
+    {
+    case TransferListModel::TR_PROGRESS:
+        {
+            const int progress = static_cast<int>(index.data(TransferListModel::UnderlyingDataRole).toReal());
+
+            m_progressBarPainter.paint(painter, option, index.data().toString(), progress);
+        }
+        break;
+    default:
+        QStyledItemDelegate::paint(painter, option, index);
+        break;
+    }
+}

src/gui/transferlistdelegate.h

@@ -28,9 +28,11 @@
 
 #pragma once
 
-#include "progressbardelegate.h"
+#include <QStyledItemDelegate>
 
-class TransferListDelegate final : public ProgressBarDelegate
+#include "progressbarpainter.h"
+
+class TransferListDelegate final : public QStyledItemDelegate
 {
     Q_OBJECT
     Q_DISABLE_COPY(TransferListDelegate)
@@ -40,4 +42,8 @@ public:
 
     QWidget *createEditor(QWidget *, const QStyleOptionViewItem &, const QModelIndex &) const override;
     QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
+    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
+
+private:
+    ProgressBarPainter m_progressBarPainter;
 };

src/gui/transferlistwidget.cpp

@@ -126,32 +126,27 @@ namespace
 }
 
 TransferListWidget::TransferListWidget(QWidget *parent, MainWindow *mainWindow)
-    : QTreeView(parent)
-    , m_mainWindow(mainWindow)
+    : QTreeView {parent}
+    , m_listModel {new TransferListModel {this}}
+    , m_sortFilterModel {new TransferListSortModel {this}}
+    , m_mainWindow {mainWindow}
 {
-
-    setUniformRowHeights(true);
     // Load settings
-    bool columnLoaded = loadSettings();
+    const bool columnLoaded = loadSettings();
 
     // Create and apply delegate
-    m_listDelegate = new TransferListDelegate(this);
-    setItemDelegate(m_listDelegate);
-
-    // Create transfer list model
-    m_listModel = new TransferListModel(this);
+    setItemDelegate(new TransferListDelegate {this});
 
-    m_sortFilterModel = new TransferListSortModel(this);
     m_sortFilterModel->setDynamicSortFilter(true);
     m_sortFilterModel->setSourceModel(m_listModel);
     m_sortFilterModel->setFilterKeyColumn(TransferListModel::TR_NAME);
     m_sortFilterModel->setFilterRole(Qt::DisplayRole);
     m_sortFilterModel->setSortCaseSensitivity(Qt::CaseInsensitive);
     m_sortFilterModel->setSortRole(TransferListModel::UnderlyingDataRole);
-
     setModel(m_sortFilterModel);
 
     // Visual settings
+    setUniformRowHeights(true);
     setRootIsDecorated(false);
     setAllColumnsShowFocus(true);
     setSortingEnabled(true);

src/gui/transferlistwidget.h

@@ -33,7 +33,6 @@
 #include <QTreeView>
 
 class MainWindow;
-class TransferListDelegate;
 class TransferListModel;
 class TransferListSortModel;
 
@@ -121,7 +120,6 @@ private:
     void applyToSelectedTorrents(const std::function<void (BitTorrent::Torrent *const)> &fn);
     QVector<BitTorrent::Torrent *> getVisibleTorrents() const;
 
-    TransferListDelegate *m_listDelegate;
     TransferListModel *m_listModel;
     TransferListSortModel *m_sortFilterModel;
     MainWindow *m_mainWindow;