RangeSlider

2021-02-24 18:50:15 +03:00
parent 63aea62c89
commit 624ad98fe7
5 changed files with 465 additions and 0 deletions
--- a/libs/widgets/rangeslider.h
+++ b/libs/widgets/rangeslider.h
@@ -0,0 +1,92 @@
+#ifndef RANGESLIDER_H
+#define RANGESLIDER_H
+
+#include <QWidget>
+#include <QPainter>
+#include <QMouseEvent>
+#include "qad_widgets_export.h"
+
+
+class QAD_WIDGETS_EXPORT RangeSlider : public QWidget
+{
+	Q_OBJECT
+	Q_FLAGS(Mode)
+	Q_PROPERTY(int minimum READ minimum WRITE setMinimum NOTIFY minimumChanged)
+	Q_PROPERTY(int maximum READ maximum WRITE setMaximum NOTIFY maximumChanged)
+	Q_PROPERTY(int lowerValue READ lowerValue WRITE setLowerValue NOTIFY lowerValueChanged)
+	Q_PROPERTY(int upperValue READ upperValue WRITE setUpperValue NOTIFY upperValueChanged)
+	Q_PROPERTY(Mode mode READ mode WRITE setMode NOTIFY modeChanged)
+
+public:
+	enum ModeEnum {
+		NoHandle = 0x0,
+		LeftHandle = 0x1,
+		RightHandle = 0x2,
+		DoubleHandles = LeftHandle | RightHandle
+	};
+	Q_DECLARE_FLAGS(Mode, ModeEnum)
+
+	RangeSlider(QWidget* parent = Q_NULLPTR);
+	RangeSlider(Qt::Orientation ori, Mode m = DoubleHandles, QWidget * parent = Q_NULLPTR);
+
+
+	int minimum() const {return m_minimum;}
+	int maximum() const {return m_maximum;}
+	int lowerValue() const {return m_lowerValue;}
+	int upperValue() const {return m_upperValue;}
+	QPair<int, int> value() const {return QPair<int, int>(m_lowerValue, m_upperValue);}
+	Mode mode() const {return m_mode;}
+
+protected:
+	QSize minimumSizeHint() const override;
+	void paintEvent(QPaintEvent *) override;
+	void mousePressEvent(QMouseEvent * e) override;
+	void mouseMoveEvent(QMouseEvent* e) override;
+	void mouseReleaseEvent(QMouseEvent *) override;
+	void changeEvent(QEvent * e) override;
+
+	QRectF firstHandleRect() const;
+	QRectF secondHandleRect() const;
+	QRectF handleRect(int value) const;
+
+signals:
+	void lowerValueChanged(int value);
+	void upperValueChanged(int value);
+	void valueChanged(int lower_value, int upper_value);
+	void rangeChanged(int min, int max);
+	void minimumChanged(int minimum);
+	void maximumChanged(int maximum);
+	void modeChanged(Mode m);
+
+public slots:
+	void setLowerValue(int value);
+	void setUpperValue(int value);
+	void setMinimum(int minimum);
+	void setMaximum(int maximum);
+	void setRange(int minimum, int maximum);
+	void setMode(Mode m);
+
+private:
+	Q_DISABLE_COPY(RangeSlider)
+	float currentPercentage();
+	int validLength() const;
+	int interval() const;
+	void init();
+
+	int m_minimum;
+	int m_maximum;
+	int m_lowerValue;
+	int m_upperValue;
+	bool mFirstHandlePressed;
+	bool mSecondHandlePressed;
+	int mDelta;
+	Qt::Orientation orientation;
+	Mode m_mode;
+	int scHandleSideLength;
+	int scSliderBarHeight;
+	int scLeftRightMargin;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(RangeSlider::Mode)
+
+#endif //RANGESLIDER_H