transmission/qt/Utils.h

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// This file Copyright © Mnemosyne LLC.
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// 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.
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#pragma once
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#include <cstddef> // size_t
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#include <utility>
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#include <QPointer>
#include <QRect>
#include <QSpinBox>
#include <QString>
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class QAbstractItemView;
class QColor;
class QHeaderView;
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class QIcon;
class QModelIndex;
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#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
namespace std
{
template<>
struct hash<QString>
{
std::size_t operator()(QString const& s) const
{
return qHash(s);
}
};
} // namespace std
#endif
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class Utils
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{
public:
static QIcon getIconFromIndex(QModelIndex const& index);
static QString removeTrailingDirSeparator(QString const& path);
static void narrowRect(QRect& rect, int dx1, int dx2, Qt::LayoutDirection direction)
{
if (direction == Qt::RightToLeft)
{
qSwap(dx1, dx2);
}
rect.adjust(dx1, 0, -dx2, 0);
}
static int measureViewItem(QAbstractItemView const* view, QString const& text);
static int measureHeaderItem(QHeaderView const* view, QString const& text);
static QColor getFadedColor(QColor const& color);
template<typename DialogT, typename... ArgsT>
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static void openDialog(QPointer<DialogT>& dialog, ArgsT&&... args)
{
if (dialog.isNull())
{
dialog = new DialogT{ std::forward<ArgsT>(args)... }; // NOLINT clang-analyzer-cplusplus.NewDelete
dialog->setAttribute(Qt::WA_DeleteOnClose);
dialog->show();
}
else
{
dialog->raise();
dialog->activateWindow();
}
}
static void updateSpinBoxFormat(QSpinBox* spinBox, char const* context, char const* format, QString const& placeholder);
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};