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Use QImage dotsPerMeter in insertImage.

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To be able to scale image in document use QImage dotsPerMeterX and dotsPerMeterY. Default qt dotsPerMeterX is 3780,
so new behavior will match previous. But can be changed setting different dotsPerMeterX and dotsPerMeterY.
This commit is contained in:
antony 2020-03-31 21:54:54 +03:00
parent 878d96f09f
commit 865c0de9f8
1 changed files with 5 additions and 4 deletions
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9
QXlsx/source/xlsxworksheet.cpp
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@ -1094,12 +1094,13 @@ bool Worksheet::insertImage(int row, int column, const QImage &image)
DrawingOneCellAnchor *anchor = new DrawingOneCellAnchor(d->drawing.data(), DrawingAnchor::Picture);
/*
The size are expressed as English Metric Units (EMUs). There are
12,700 EMUs per point. Therefore, 12,700 * 3 /4 = 9,525 EMUs per
pixel
The size are expressed as English Metric Units (EMUs).
EMU is 1/360 000 of centimiter.
*/
anchor->from = XlsxMarker(row, column, 0, 0);
anchor->ext = QSize(image.width() * 9525, image.height() * 9525);
float scaleX = 36e6f / std::max(1,image.dotsPerMeterX());
float scaleY = 36e6f / std::max(1,image.dotsPerMeterY());
anchor->ext = QSize( int(image.width() * scaleX), int(image.height() * scaleY) );
anchor->setObjectPicture(image);
return true;