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	Microprofile: DPI-aware drawing
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				| @ -151,6 +151,8 @@ private: | ||||
|     /// This timer is used to redraw the widget's contents continuously. To save resources, it only
 | ||||
|     /// runs while the widget is visible.
 | ||||
|     QTimer update_timer; | ||||
|     /// Scale the coordinate system appropriately when physical DPI != logical DPI.
 | ||||
|     qreal x_scale, y_scale; | ||||
| }; | ||||
| 
 | ||||
| #endif | ||||
| @ -220,11 +222,17 @@ MicroProfileWidget::MicroProfileWidget(QWidget* parent) : QWidget(parent) { | ||||
|     MicroProfileInitUI(); | ||||
| 
 | ||||
|     connect(&update_timer, SIGNAL(timeout()), SLOT(update())); | ||||
| 
 | ||||
|     QPainter painter(this); | ||||
|     x_scale = qreal(painter.device()->physicalDpiX()) / qreal(painter.device()->logicalDpiX()); | ||||
|     y_scale = qreal(painter.device()->physicalDpiY()) / qreal(painter.device()->logicalDpiY()); | ||||
| } | ||||
| 
 | ||||
| void MicroProfileWidget::paintEvent(QPaintEvent* ev) { | ||||
|     QPainter painter(this); | ||||
| 
 | ||||
|     painter.scale(x_scale, y_scale); | ||||
| 
 | ||||
|     painter.setBackground(Qt::black); | ||||
|     painter.eraseRect(rect()); | ||||
| 
 | ||||
| @ -248,24 +256,24 @@ void MicroProfileWidget::hideEvent(QHideEvent* ev) { | ||||
| } | ||||
| 
 | ||||
| void MicroProfileWidget::mouseMoveEvent(QMouseEvent* ev) { | ||||
|     MicroProfileMousePosition(ev->x(), ev->y(), 0); | ||||
|     MicroProfileMousePosition(ev->x() / x_scale, ev->y() / y_scale, 0); | ||||
|     ev->accept(); | ||||
| } | ||||
| 
 | ||||
| void MicroProfileWidget::mousePressEvent(QMouseEvent* ev) { | ||||
|     MicroProfileMousePosition(ev->x(), ev->y(), 0); | ||||
|     MicroProfileMousePosition(ev->x() / x_scale, ev->y() / y_scale, 0); | ||||
|     MicroProfileMouseButton(ev->buttons() & Qt::LeftButton, ev->buttons() & Qt::RightButton); | ||||
|     ev->accept(); | ||||
| } | ||||
| 
 | ||||
| void MicroProfileWidget::mouseReleaseEvent(QMouseEvent* ev) { | ||||
|     MicroProfileMousePosition(ev->x(), ev->y(), 0); | ||||
|     MicroProfileMousePosition(ev->x() / x_scale, ev->y() / y_scale, 0); | ||||
|     MicroProfileMouseButton(ev->buttons() & Qt::LeftButton, ev->buttons() & Qt::RightButton); | ||||
|     ev->accept(); | ||||
| } | ||||
| 
 | ||||
| void MicroProfileWidget::wheelEvent(QWheelEvent* ev) { | ||||
|     MicroProfileMousePosition(ev->x(), ev->y(), ev->delta() / 120); | ||||
|     MicroProfileMousePosition(ev->x() / x_scale, ev->y() / y_scale, ev->delta() / 120); | ||||
|     ev->accept(); | ||||
| } | ||||
| 
 | ||||
|  | ||||
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