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Description: fix selection rendering issues if rounding leads to left-out pixels
instead of manual qFloor, use the toAlignedRect() function to get the minimal enclosing rectangle
this will in some cases over-paint one-pixel, which is preferable to under-paint which
leaves gaps inside painting text lines that can not be fixed by the user of the painting routines
Author: Christoph Cullmann <cullmann@kde.org>
Origin: upstream
Applied-Upstream: 47904bb
Last-Updated: 2018-07-19
--- a/src/gui/text/qtextlayout.cpp
+++ b/src/gui/text/qtextlayout.cpp
@@ -1006,10 +1006,8 @@ static void addSelectedRegionsToPath(QTe
}
if (lastSelectionWidth > 0) {
- QRectF rect = boundingRect & QRectF(lastSelectionX.toReal(), selectionY, lastSelectionWidth.toReal(), lineHeight);
- rect.moveLeft(qFloor(rect.left()));
- rect.moveTop(qFloor(rect.top()));
- region->addRect(rect);
+ const QRectF rect = boundingRect & QRectF(lastSelectionX.toReal(), selectionY, lastSelectionWidth.toReal(), lineHeight);
+ region->addRect(rect.toAlignedRect());
}
lastSelectionX = selectionX;
@@ -1017,10 +1015,8 @@ static void addSelectedRegionsToPath(QTe
}
}
if (lastSelectionWidth > 0) {
- QRectF rect = boundingRect & QRectF(lastSelectionX.toReal(), selectionY, lastSelectionWidth.toReal(), lineHeight);
- rect.moveLeft(qFloor(rect.left()));
- rect.moveTop(qFloor(rect.top()));
- region->addRect(rect);
+ const QRectF rect = boundingRect & QRectF(lastSelectionX.toReal(), selectionY, lastSelectionWidth.toReal(), lineHeight);
+ region->addRect(rect.toAlignedRect());
}
}
@@ -2135,7 +2131,7 @@ static void setPenAndDrawBackground(QPai
QBrush bg = chf.background();
if (bg.style() != Qt::NoBrush && !chf.property(SuppressBackground).toBool())
- p->fillRect(QRectF(qFloor(r.x()), qFloor(r.y()), r.width(), r.height()), bg);
+ p->fillRect(r.toAlignedRect(), bg);
if (c.style() != Qt::NoBrush) {
p->setPen(QPen(c, 0));
}
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