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fix - MacOS - pixelate on Retina displays

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This commit is contained in:
Yuriy Puchkov
2020-12-06 11:22:34 +02:00
parent ada4911381
commit beb09bd0cf
1 changed files with 4 additions and 6 deletions
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10
src/tools/pixelate/pixelatetool.cpp
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@@ -22,7 +22,6 @@
#include <QGraphicsScene>
#include <QImage>
#include <QPainter>
#include <cassert>
PixelateTool::PixelateTool(QObject* parent)
: AbstractTwoPointTool(parent)
@@ -65,13 +64,12 @@ void PixelateTool::process(QPainter& painter,
QPoint& p0 = m_points.first;
QPoint& p1 = m_points.second;
QRect selection = QRect(p0, p1).normalized();
auto pixelRatio = pixmap.devicePixelRatio();
QRect selectionScaled =
QRect(p0 * pixelRatio, p1 * pixelRatio).normalized();
// If thickness is less than 1, use old blur process
if (m_thickness <= 1) {
auto pixelRatio = pixmap.devicePixelRatio();
QRect selectionScaled =
QRect(p0 * pixelRatio, p1 * pixelRatio).normalized();
QGraphicsBlurEffect* blur = new QGraphicsBlurEffect;
blur->setBlurRadius(10);
@@ -93,7 +91,7 @@ void PixelateTool::process(QPainter& painter,
int height = selection.height() * (0.5 / qMax(1, m_thickness));
QSize size = QSize(qMax(width, 1), qMax(height, 1));
QPixmap t = pixmap.copy(selection);
QPixmap t = pixmap.copy(selectionScaled);
t = t.scaled(size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
t = t.scaled(selection.width(), selection.height());
painter.drawImage(selection, t.toImage());