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Qt: Center type icon in game list

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Stenzek 2024-07-09 21:26:23 +10:00
parent addadbabc6
commit 93836636a1
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1 changed files with 33 additions and 0 deletions
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33
src/duckstation-qt/gamelistwidget.cpp
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@ -16,11 +16,13 @@
#include <QtCore/QSortFilterProxyModel>
#include <QtGui/QGuiApplication>
#include <QtGui/QPainter>
#include <QtGui/QPixmap>
#include <QtGui/QWheelEvent>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QMenu>
#include <QtWidgets/QScrollBar>
#include <QtWidgets/QStyledItemDelegate>
static constexpr float MIN_SCALE = 0.1f;
static constexpr float MAX_SCALE = 2.0f;
@ -103,6 +105,36 @@ private:
bool m_merge_disc_sets = true;
};
namespace {
class GameListIconStyleDelegate final : public QStyledItemDelegate
{
public:
GameListIconStyleDelegate(QWidget* parent) : QStyledItemDelegate(parent) {}
~GameListIconStyleDelegate() = default;
void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override
{
// https://stackoverflow.com/questions/32216568/how-to-set-icon-center-in-qtableview
Q_ASSERT(index.isValid());
// draw default item
QStyleOptionViewItem opt = option;
initStyleOption(&opt, index);
opt.icon = QIcon();
QApplication::style()->drawControl(QStyle::CE_ItemViewItem, &opt, painter, 0);
const QRect r = option.rect;
const QPixmap pix = qvariant_cast<QPixmap>(index.data(Qt::DecorationRole));
const int pix_width = static_cast<int>(pix.width() / pix.devicePixelRatio());
const int pix_height = static_cast<int>(pix.width() / pix.devicePixelRatio());
// draw pixmap at center of item
const QPoint p = QPoint((r.width() - pix_width) / 2, (r.height() - pix_height) / 2);
painter->drawPixmap(r.topLeft() + p, pix);
}
};
} // namespace
GameListWidget::GameListWidget(QWidget* parent /* = nullptr */) : QWidget(parent)
{
}
@ -167,6 +199,7 @@ void GameListWidget::initialize()
m_table_view->verticalHeader()->hide();
m_table_view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
m_table_view->setVerticalScrollMode(QAbstractItemView::ScrollMode::ScrollPerPixel);
m_table_view->setItemDelegateForColumn(0, new GameListIconStyleDelegate(this));
loadTableViewColumnVisibilitySettings();
loadTableViewColumnSortSettings();