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Fix preview icon of text formats using balloon callouts with top/bottom

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margins
This commit is contained in:
Nyall Dawson 2021-04-19 16:38:38 +10:00
parent 804914f396
commit cefd4edbb0
1 changed files with 7 additions and 3 deletions
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10
src/core/callouts/qgscallout.cpp
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@ -1263,9 +1263,13 @@ QPolygonF QgsBalloonCallout::getPoints( QgsRenderContext &context, QgsPointXY or
const double marginTop = context.convertToPainterUnits( top, mMarginUnit );
const double marginBottom = context.convertToPainterUnits( bottom, mMarginUnit );
const QRectF expandedRect( rect.left() - marginLeft, rect.top() + marginBottom,
rect.width() + marginLeft + marginRight,
rect.height() - marginTop - marginBottom );
const QRectF expandedRect = rect.height() < 0 ?
QRectF( rect.left() - marginLeft, rect.top() + marginBottom,
rect.width() + marginLeft + marginRight,
rect.height() - marginTop - marginBottom ) :
QRectF( rect.left() - marginLeft, rect.top() - marginTop,
rect.width() + marginLeft + marginRight,
rect.height() + marginTop + marginBottom );
// IMPORTANT -- check for degenerate height is sometimes >=0, because QRectF are not normalized and we are using painter
// coordinates with descending vertical axis!