tree db1f0daf122da3aec6d4d432eeebd191516440f0
parent 4c7464b07e178d74af6c6abd87ddb11b44ee4c94
author Lei Zhang <thestig@chromium.org> 1737510780 -0800
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1737510780 -0800

Fix FPDFText_GetLooseCharBox() to handle rotation

Change the cpdf_textpage.cpp code that implements the character box
calculations used by FPDFText_GetLooseCharBox() to properly handle the
transformation matrix. Then FPDFText_GetLooseCharBox() will no longer
return dimensions of 0 when matrix.a is 0, and it will no longer return
negative dimensions when the text is flipped.

Bug: 42270642
Change-Id: Iab85cbf64cd1f8266ab20b63ad35bddefd05733c
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/127995
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Thomas Sepez <tsepez@google.com>