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/*
* SPDX-FileCopyrightText: 2013-2020 Mattia Basaglia
* SPDX-FileCopyrightText: 2014 Calle Laakkonen
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
#ifndef COLOR_PREVIEW_HPP
#define COLOR_PREVIEW_HPP
#include "colorwidgets_global.hpp"
#include <QWidget>
namespace color_widgets {
/**
* Simple widget that shows a preview of a color
*/
class QCP_EXPORT ColorPreview : public QWidget
{
Q_OBJECT
Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged DESIGNABLE true)
Q_PROPERTY(QColor comparisonColor READ comparisonColor WRITE setComparisonColor NOTIFY comparisonColorChanged DESIGNABLE true)
Q_PROPERTY(DisplayMode display_mode READ displayMode WRITE setDisplayMode NOTIFY displayModeChanged DESIGNABLE true)
Q_PROPERTY(QBrush background READ background WRITE setBackground NOTIFY backgroundChanged DESIGNABLE true)
Q_PROPERTY(bool drawFrame READ drawFrame WRITE setDrawFrame NOTIFY drawFrameChanged DESIGNABLE true)
Q_ENUMS(DisplayMode)
public:
enum DisplayMode
{
NoAlpha, ///< Show current color with no transparency
AllAlpha, ///< show current color with transparency
SplitAlpha, ///< Show both solid and transparent side by side
SplitColor, ///< Show current and comparison colors side by side
SplitColorReverse, ///< Like Split color but swapped
};
Q_ENUMS(DisplayMode)
explicit ColorPreview(QWidget *parent = nullptr);
~ColorPreview();
/// Get the background visible under transparent colors
QBrush background() const;
/// Change the background visible under transparent colors
void setBackground(const QBrush &bk);
/// Get color display mode
DisplayMode displayMode() const;
/// Set how transparent colors are handled
void setDisplayMode(DisplayMode dm);
/// Get current color
QColor color() const;
/// Get the comparison color
QColor comparisonColor() const;
QSize sizeHint () const Q_DECL_OVERRIDE;
void paint(QPainter &painter, QRect rect) const;
/// Whether to draw a frame around the color
bool drawFrame() const;
void setDrawFrame(bool);
public Q_SLOTS:
/// Set current color
void setColor(const QColor &c);
/// Set the comparison color
void setComparisonColor(const QColor &c);
Q_SIGNALS:
/// Emitted when the user clicks on the widget
void clicked();
/// Emitted on setColor
void colorChanged(QColor);
void comparisonColorChanged(QColor);
void displayModeChanged(DisplayMode);
void backgroundChanged(const QBrush&);
void drawFrameChanged(bool);
protected:
void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE;
void mouseReleaseEvent(QMouseEvent *ev) Q_DECL_OVERRIDE;
void mouseMoveEvent(QMouseEvent *ev) Q_DECL_OVERRIDE;
private:
class Private;
Private * const p;
};
} // namespace color_widgets
Q_DECLARE_METATYPE(color_widgets::ColorPreview::DisplayMode)
#endif // COLOR_PREVIEW_HPP
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