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mess around with slider thumb style

This commit is contained in:
laserpants 2016-04-30 13:44:45 +03:00
parent 6440b937db
commit f6c8b74ddd
2 changed files with 32 additions and 6 deletions
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19
components/slider.cpp
View File

@ -1,12 +1,20 @@
#include <QPainter> #include <QPainter>
#include <QDebug> #include <QDebug>
#include <QMouseEvent> #include <QMouseEvent>
#include <QPropertyAnimation>
#include "slider.h" #include "slider.h"
Handle::Handle(Slider *slider) Handle::Handle(Slider *slider)
: QWidget(slider), : QWidget(slider),
_slider(slider) _slider(slider),
_animation(new QPropertyAnimation(this)),
_scaleFactor(1)
{ {
_animation->setPropertyName("scaleFactor");
_animation->setTargetObject(this);
_animation->setStartValue(1);
_animation->setEndValue(2);
_animation->setDuration(200);
} }
Handle::~Handle() Handle::~Handle()
@ -51,6 +59,15 @@ void Handle::paintEvent(QPaintEvent *event)
void Handle::mousePressEvent(QMouseEvent *event) void Handle::mousePressEvent(QMouseEvent *event)
{ {
_offset = pos() - event->globalPos(); _offset = pos() - event->globalPos();
_animation->setDirection(QAbstractAnimation::Forward);
_animation->start();
}
void Handle::mouseReleaseEvent(QMouseEvent *event)
{
_animation->setDirection(QAbstractAnimation::Backward);
_animation->start();
} }
void Handle::mouseMoveEvent(QMouseEvent *event) void Handle::mouseMoveEvent(QMouseEvent *event)

19
components/slider.h
View File

@ -4,17 +4,20 @@
#include <QAbstractSlider> #include <QAbstractSlider>
#include <QPoint> #include <QPoint>
class QPropertyAnimation;
class Slider; class Slider;
class Handle : public QWidget class Handle : public QWidget
{ {
Q_OBJECT Q_OBJECT
Q_PROPERTY(qreal scaleFactor WRITE setScaleFactor READ scaleFactor)
public: public:
explicit Handle(Slider *slider); explicit Handle(Slider *slider);
~Handle(); ~Handle();
inline QSize sizeHint() const Q_DECL_OVERRIDE { return QSize(12, 12); } inline QSize sizeHint() const Q_DECL_OVERRIDE { return QSize(12, 12)*_scaleFactor; }
inline void setRelativePosition(const QPoint &pos) { setPosition(_offset + pos); } inline void setRelativePosition(const QPoint &pos) { setPosition(_offset + pos); }
@ -24,18 +27,24 @@ public:
inline void setOffset(const QPoint &offset) { _offset = offset; update(); } inline void setOffset(const QPoint &offset) { _offset = offset; update(); }
inline const QPoint &offset() const { return _offset; } inline const QPoint &offset() const { return _offset; }
inline void setScaleFactor (qreal factor ) { _scaleFactor = factor; refreshGeometry(); }
inline qreal scaleFactor() const { return _scaleFactor; }
void refreshGeometry(); void refreshGeometry();
protected: protected:
void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE; void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE; void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE; void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
private: private:
Slider *const _slider; Slider *const _slider;
QPoint _position; QPropertyAnimation *const _animation;
QPoint _eventPos; QPoint _position;
QPoint _offset; QPoint _eventPos;
QPoint _offset;
qreal _scaleFactor;
}; };
class Slider : public QAbstractSlider class Slider : public QAbstractSlider