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Zoom to content: count only visible items

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itemsBoundingRect() also counts hidden items. The text of a single-line
wire, and the wire texts hidden by "one text per potential", are never
positioned again and can sit far outside the drawing, so Zoom to content
zoomed out to include them. On photovoltaique.qet 14 such texts reach
x = -729 and the zoom covered 2421x924 instead of 1135x648.

Add Diagram::visibleItemsBoundingRect() and use it for Zoom to content,
the scene rect and the borderless export. Zoom to content now goes through
zoomToRect(), which re-centres after the scroll bars appear; before, the
view could stay scrolled to the top-left with part of the content cut off.

Fixes #1281

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
ispyisail
2026-10-04 11:23:26 +13:00
parent 69aed0cf84
commit 6f5db879c1
3 changed files with 26 additions and 5 deletions
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sources/diagramview.cpp
+3 -2
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@@ -479,8 +479,9 @@ void DiagramView::zoomFit()
*/
void DiagramView::zoomContent()
{
fitInView(m_diagram -> itemsBoundingRect(), Qt::KeepAspectRatio);
adjustGridToZoom();
const QRectF content = m_diagram->visibleItemsBoundingRect();
if (!content.isNull())
zoomToRect(content);
}
/**