slider.h
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#ifndef SLIDER_H
#define SLIDER_H
#include <QWidget>
#include <QPixmap>
class Slider : public QWidget
{
Q_OBJECT
bool isSliderDown_;
int sliderPosition_;
int value_;
int minimum_;
int maximum_;
QPixmap groove;
QPixmap sub;
QPixmap handle;
int minSliderX;
int maxSliderX;
QPoint grooveLeftTop;
QPoint subLeftTop;
bool subVisible_;
bool focused;
bool isSliderMoved_;
public:
explicit Slider(QWidget *parent = 0);
void setSubPixmap(const QPixmap &pixmap);
void setSubPixmap(const QString &fileName);
void setSubVisible(bool visible);
void setRange(int min, int max);
void setMinimum(int min);
void setMaximum(int max);
int value();
int minimum();
int maximum();
bool isSliderDown();
int sliderPosition();
void setSliderPosition(int value);
bool isSliderMoved();
QList<int> ticks;
QList<int> bigTicks;
int tickInterval;
int bigTickInterval;
protected:
virtual void focusInEvent(QFocusEvent *event);
virtual void focusOutEvent(QFocusEvent *event);
virtual void keyPressEvent(QKeyEvent *event);
virtual void keyReleaseEvent(QKeyEvent *event);
virtual void mouseMoveEvent(QMouseEvent *event);
virtual void mousePressEvent(QMouseEvent *event);
virtual void mouseReleaseEvent(QMouseEvent *event);
virtual void paintEvent(QPaintEvent *event);
virtual void resizeEvent(QResizeEvent *event);
private:
int calcSliderPosition(int mouseX);
int calcSubLength(int value);
void updatePixmapPosition();
signals:
void sliderMoved(int value);
void valueChanged(int value);
void sliderPressed();
void sliderReleased();
public slots:
void setValue(int value);
void increase();
void decrease();
};
#endif // SLIDER_H