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fix grid with fractional scaling (#4065)

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This commit is contained in:
borgmanJeremy
2025-07-11 14:12:19 -05:00
committed by GitHub
parent 32e9722042
commit 5318e02fa5
1 changed files with 8 additions and 9 deletions
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17
src/widgets/capture/capturewidget.cpp
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@@ -666,17 +666,18 @@ void CaptureWidget::paintEvent(QPaintEvent* paintEvent)
painter.setPen(uicolor);
painter.setBrush(QBrush(uicolor));
auto topLeft = mapToGlobal(m_context.selection.topLeft());
const auto scale{ m_context.screenshot.devicePixelRatio() };
auto topLeft = mapToGlobal(m_context.selection.topLeft() / scale);
topLeft.rx() -= topLeft.x() % m_gridSize;
topLeft.ry() -= topLeft.y() % m_gridSize;
topLeft = mapFromGlobal(topLeft);
const auto scale{ m_context.screenshot.devicePixelRatio() };
const auto step{ m_gridSize * scale };
const auto step{ m_gridSize / scale };
const auto radius{ 1 * scale };
for (int y = topLeft.y(); y < m_context.selection.bottom(); y += step) {
for (int x = topLeft.x(); x < m_context.selection.right();
for (int y = topLeft.y(); y < m_context.selection.bottom() / scale;
y += step) {
for (int x = topLeft.x(); x < m_context.selection.right() / scale;
x += step) {
painter.drawEllipse(x, y, radius, radius);
}
@@ -1812,10 +1813,8 @@ QPoint CaptureWidget::snapToGrid(const QPoint& point) const
const auto scale{ m_context.screenshot.devicePixelRatio() };
snapPoint.setX((qRound(snapPoint.x() / double(m_gridSize)) * m_gridSize) *
scale);
snapPoint.setY((qRound(snapPoint.y() / double(m_gridSize)) * m_gridSize) *
scale);
snapPoint.setX((qRound(snapPoint.x() / double(m_gridSize)) * m_gridSize));
snapPoint.setY((qRound(snapPoint.y() / double(m_gridSize)) * m_gridSize));
return mapFromGlobal(snapPoint);
}