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- /**
- * \file gradient_editor.hpp
- *
- * \author Mattia Basaglia
- *
- * \copyright Copyright (C) 2013-2020 Mattia Basaglia
- *
- * 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 GRADIENT_EDITOR_HPP
- #define GRADIENT_EDITOR_HPP
- #include "colorwidgets_global.hpp"
- #include <QWidget>
- #include <QGradient>
- namespace color_widgets {
- class ColorDialog;
- /**
- * \brief A slider that moves on top of a gradient
- */
- class QCP_EXPORT GradientEditor : public QWidget
- {
- Q_OBJECT
- Q_PROPERTY(QBrush background READ background WRITE setBackground NOTIFY backgroundChanged)
- Q_PROPERTY(QGradientStops stops READ stops WRITE setStops NOTIFY stopsChanged)
- Q_PROPERTY(QLinearGradient gradient READ gradient WRITE setGradient)
- Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
- Q_PROPERTY(int selectedStop READ selectedStop WRITE setSelectedStop NOTIFY selectedStopChanged)
- Q_PROPERTY(QColor selectedColor READ selectedColor WRITE setSelectedColor)
- public:
- explicit GradientEditor(QWidget *parent = 0);
- explicit GradientEditor(Qt::Orientation orientation, QWidget *parent = 0);
- ~GradientEditor();
- QSize sizeHint() const override;
- /// Get the background, it's visible for transparent gradient stops
- QBrush background() const;
- /// Set the background, it's visible for transparent gradient stops
- void setBackground(const QBrush &bg);
- /// Get the colors that make up the gradient
- QGradientStops stops() const;
- /// Set the colors that make up the gradient
- void setStops(const QGradientStops &colors);
- /// Get the gradient
- QLinearGradient gradient() const;
- /// Set the gradient
- void setGradient(const QLinearGradient &gradient);
- Qt::Orientation orientation() const;
- /**
- * \brief Dialog shown when double clicking a stop
- */
- ColorDialog* dialog() const;
- /**
- * \brief Index of the currently selected gradient stop (or -1 if there is no selection)
- */
- int selectedStop() const;
- /**
- * \brief Color of the selected stop
- */
- QColor selectedColor() const;
- public Q_SLOTS:
- void setOrientation(Qt::Orientation);
- void setSelectedStop(int stop);
- void setSelectedColor(const QColor& color);
- void addStop();
- void removeStop();
- Q_SIGNALS:
- void backgroundChanged(const QBrush&);
- void stopsChanged(const QGradientStops&);
- void selectedStopChanged(int);
- protected:
- void paintEvent(QPaintEvent *ev) override;
- void mousePressEvent(QMouseEvent *ev) override;
- void mouseMoveEvent(QMouseEvent *ev) override;
- void mouseReleaseEvent(QMouseEvent *ev) override;
- void leaveEvent(QEvent * event) override;
- void mouseDoubleClickEvent(QMouseEvent *event) override;
- void dragEnterEvent(QDragEnterEvent *event) override;
- void dragMoveEvent(QDragMoveEvent* event) override;
- void dragLeaveEvent(QDragLeaveEvent *event) override;
- void dropEvent(QDropEvent* event) override;
- private Q_SLOTS:
- void dialogUpdate(const QColor& c);
- private:
- class Private;
- Private * const p;
- };
- } // namespace color_widgets
- #endif // GRADIENT_EDITOR_HPP
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