Qt: Fix MicroProfile dpi scaling
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@ -151,8 +151,8 @@ private:
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/// This timer is used to redraw the widget's contents continuously. To save resources, it only
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/// runs while the widget is visible.
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QTimer update_timer;
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/// Scale the coordinate system appropriately when physical DPI != logical DPI.
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qreal x_scale, y_scale;
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/// Scale the coordinate system appropriately when dpi != 96.
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qreal x_scale = 1.0, y_scale = 1.0;
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};
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#endif
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@ -222,15 +222,14 @@ MicroProfileWidget::MicroProfileWidget(QWidget* parent) : QWidget(parent) {
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MicroProfileInitUI();
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connect(&update_timer, SIGNAL(timeout()), SLOT(update()));
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QPainter painter(this);
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x_scale = qreal(painter.device()->physicalDpiX()) / qreal(painter.device()->logicalDpiX());
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y_scale = qreal(painter.device()->physicalDpiY()) / qreal(painter.device()->logicalDpiY());
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}
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void MicroProfileWidget::paintEvent(QPaintEvent* ev) {
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QPainter painter(this);
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// The units used by Microprofile for drawing are based in pixels on a 96 dpi display.
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x_scale = qreal(painter.device()->logicalDpiX()) / 96.0;
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y_scale = qreal(painter.device()->logicalDpiY()) / 96.0;
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painter.scale(x_scale, y_scale);
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painter.setBackground(Qt::black);
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@ -241,7 +240,7 @@ void MicroProfileWidget::paintEvent(QPaintEvent* ev) {
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painter.setFont(font);
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mp_painter = &painter;
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MicroProfileDraw(rect().width(), rect().height());
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MicroProfileDraw(rect().width() / x_scale, rect().height() / y_scale);
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mp_painter = nullptr;
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}
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