Simplifies OutputDevice::ImplLogicToDevicePixel for B2DPolygons by
delegating coordinate transformation to the CoordinateMapper. By using
LogicToDevicePixelX and LogicToDevicePixelY, we eliminate redundant
if/else branching and ensure that window and pixel offsets are
consistently applied across both axes.
This refactoring also addresses systemic X/Y scaling mix-ups where the
horizontal scaler was being used for vertical coordinates, a bug
identified through failures in PDF export integration tests.
Changes:
* Simplified B2DPolygon transformation loop in map.cxx.
* Removed private visibility (SAL_DLLPRIVATE) from the B2DPolyPolygon
overload of LogicToPixel to allow for external unit testing.
* Added a new unit test fixture 'testB2DPolygonAsymmetricDPI' in
vclmaptest.cxx to verify scaling accuracy on asymmetric displays
(e.g., 100x200 DPI) and prevent future axis-specific regressions.
Change-Id: I718df9af8e5d8b2a446be74223047bdaa20ed148
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/207555
Tested-by: Jenkins
Reviewed-by: Dan Williams <dcbw@libreoffice.org>
Christopher Sherlock
9a3ad0812d