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/**
* \file
*
* \author Mattia Basaglia
*
* \copyright Copyright (C) 2013-2020 Mattia Basaglia
* \copyright Copyright (C) 2014 Calle Laakkonen
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#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_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
};
Q_ENUMS(DisplayMode)
explicit ColorPreview(QWidget *parent = 0);
~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;
void paint(QPainter &painter, QRect rect) const;
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&);
protected:
void paintEvent(QPaintEvent *);
void resizeEvent(QResizeEvent *);
void mouseReleaseEvent(QMouseEvent *ev);
void mouseMoveEvent(QMouseEvent *ev);
private:
class Private;
Private * const p;
};
} // namespace color_widgets
Q_DECLARE_METATYPE(color_widgets::ColorPreview::DisplayMode)
#endif // COLOR_PREVIEW_HPP
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