Hi All
I'm working on a plugin which adds a custom plugin layer to the map. This all
works fine on the desktop, but goes horribly wrong in print composer and in
printed outout.
What it comes down to is that I'm using QFontMetricsF to calculate the size of
some text, which I'm then using for layout. On the screen this is fine. In the
printed output the rectangle returned by QFontMetricsF is about 1/3 the size of
the printed text, which makes the layout pretty awful! The test code I have is
as follows:
painter.save()
painter.setPen(QPen())
painter.setBrush(Qt.NoBrush)
painter.translate(position.x(),position.y())
painter.scale(fontFactor,fontFactor)
painter.setFont(font)
painter.drawText(QPointF(0.0,0.0),text)
painter.drawRect(QFontMetricsF(font).boundingRect(text))
painter.restore()
The result (after printing to PDF) is that the box printed by drawRect is about
1/3 the size of the text printed by drawText. This seems to be independent of
the size and location of the map in print composer or the font used. Also
printing to PDF or PNG gives the same result.
At first sight this looks to me like a bug in Qt, but that seems unlikely? Any
thoughts please?
I'm running this on Ubuntu 11.10. Qgis version information as follows:
QGIS version
1.8.0-Lisboa
QGIS code revision
exported
Compiled against Qt
4.7.4
Running against Qt
4.7.4
Compiled against GDAL/OGR
1.9.2
Running against GDAL/OGR
1.9.2
GEOS Version
3.3.3
PostgreSQL Client Version
9.1.6
SpatiaLite Version
2.4.0
QWT Version
5.2.2
Chris Crook
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