QCAD Bugtracker

  • Status Closed
  • Percent Complete
    100%
  • Task Type Bug Report
  • Category QCAD (main)
  • Assigned To
    andrew
  • Operating System All
  • Severity Low
  • Priority Very Low
  • Reported Version 3.16.5
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: QCAD Bugtracker
Opened by Spirou4D - 28.02.2017
Last edited by andrew - 28.02.2017

FS#1551 - File > Bitmap Export: exception when image size too large

Hi friends,

I have this traceback with my Qcad from ppa for linux, to export in png image:
Warning: libpng warning: Image width is zero in IHDR
Warning: libpng warning: Image height is zero in IHDR
libpng error: Invalid IHDR data
Error: cannot save file: /home/patrinux/Bureau/IMAGE.png
Error: Unknown error
Debug: got transaction
Warning: RScriptHandlerEcma::eval: script engine exception: “Error: :-1:-1: Wrong number/types of arguments for RMainWindowQt.handleUserWarning().
<native>() at -1
<anonymous>() at scripts/File/BitmapExport/BitmapExport.js:56
<native>(RActionAdapter(0x26d1ea0)) at -1
<global>() at 1” Warning: “<anonymous>()@scripts/File/BitmapExport/BitmapExport.js:56” Debug: got transaction

Impossible to obtain an png image, and others too. I am on Linux Mint Serena 64B alias Ubuntu Xenial 16.04. Qcad last release:

Version :
3.16.4.4 (3.16.4.4)
Internet :
QCAD.org
Date de fabrication :
Jan 26 2017
Révision :

Qt Version :
4.8.7
Architecture :
x86_64
Compiler :
gcc 5.4.0

Closed by  andrew
28.02.2017 12:49
Reason for closing:  Fixed
Additional comments about closing:  

https://github.com/qcad/q cad/commit/7f84e697f2d0ebf98bcf1fa5b14bf 365701b4397

Admin
andrew commented on 28.02.2017 12:49

Thanks for your report.

This would indicate that the size of your bitmap exceeds the maximum possible size of w x h x 4 ≤ 2147483647.
I've implemented a fix that outputs an error if that size limit is exceeded. Unfortunately, that means that exporting to the desired size is not possible (due to limitations of Qt image export).

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