mirror of https://github.com/JakubMelka/PDF4QT.git
104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
// Copyright (C) 2019-2021 Jakub Melka
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//
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// This file is part of PDF4QT.
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//
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// PDF4QT is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// with the written consent of the copyright owner, any later version.
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//
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// PDF4QT is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
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#ifndef PDFWIDGETUTILS_H
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#define PDFWIDGETUTILS_H
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#include "pdfwidgetsglobal.h"
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#include "pdfglobal.h"
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#include <QIcon>
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#include <QWidget>
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namespace pdf
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{
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class PDF4QTLIBWIDGETSSHARED_EXPORT PDFWidgetUtils
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{
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public:
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PDFWidgetUtils() = delete;
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/// Converts size in MM to pixel size
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static int getPixelSize(const QPaintDevice* device, pdf::PDFReal sizeMM);
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/// Scale horizontal DPI value
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/// \param device Paint device to obtain logical DPI for scaling
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static int scaleDPI_x(const QPaintDevice* device, int unscaledSize);
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/// Scale vertical DPI value
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/// \param device Paint device to obtain logical DPI for scaling
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static int scaleDPI_y(const QPaintDevice* device, int unscaledSize);
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/// Scale horizontal DPI value
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/// \param device Paint device to obtain logical DPI for scaling
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static PDFReal scaleDPI_x(const QPaintDevice* device, PDFReal unscaledSize);
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/// Scales widget based on DPI
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/// \param widget Widget to be scaled
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/// \param unscaledSize Unscaled size of the widget
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static void scaleWidget(QWidget* widget, QSize unscaledSize);
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/// Scales size based on DPI
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/// \param device Paint device to obtain logical DPI for scaling
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/// \param unscaledSize Unscaled size
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static QSize scaleDPI(const QPaintDevice* widget, QSize unscaledSize);
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/// Apply style to the widget
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static void style(QWidget* widget);
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/// Vrátí true, pokud je aktuálně nastavená dark theme
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/// pro aplikaci.
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static bool isDarkTheme();
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/// Converts an action's icon for use in a dark theme.
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/// \param action Pointer to the QAction to be converted.
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/// \param iconSize The size of the action's icon.
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/// \param devicePixelRatioF The device pixel ratio factor.
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static void convertActionForDarkTheme(QAction* action, QSize iconSize, qreal devicePixelRatioF);
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/// Converts an icon for use in a dark theme.
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/// \param icon The icon to be converted.
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/// \param iconSize The size of the icon.
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/// \param devicePixelRatioF The device pixel ratio factor.
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static QIcon convertIconForDarkTheme(QIcon icon, QSize iconSize, qreal devicePixelRatioF);
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/// Converts an action's icon for use in a dark theme.
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/// \param action Pointer to the QAction to be converted.
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/// \param iconSize The size of the action's icon.
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/// \param devicePixelRatioF The device pixel ratio factor.
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template<typename Container>
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static void convertActionsForDarkTheme(const Container& actions, QSize iconSize, qreal devicePixelRatioF)
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{
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for (QAction* action : actions)
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{
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convertActionForDarkTheme(action, iconSize, devicePixelRatioF);
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}
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}
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/// Checks menu accessibility for all descendants of the specified widget.
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/// \param widget The widget whose descendants are to be checked.
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static void checkMenuAccessibility(QWidget* widget);
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/// Checks menu accessibility for the specified menu.
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/// \param menu The menu to be checked for accessibility.
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static void checkMenuAccessibility(QMenu* menu);
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};
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} // namespace pdf
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#endif // PDFWIDGETUTILS_H
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