[Gambas-user] Fwd: [Gambas Bug Tracker] Bug #1136: ColorButton fails with error bad drawing under gtk2 and gtk3

[Benoît Minisini via Gambas-user]

-------- Message transféré --------
Sujet : [Gambas Bug Tracker] Bug #1136: ColorButton fails with error bad 
drawing under gtk2 and gtk3
Date : Sat, 02 Sep 2017 02:22:27 GMT
De : bugtrac...@gambaswiki.org
Pour : tmore...@ajm-software.com, g4m...@gmail.com

http://gambaswiki.org/bugtracker/edit?object=BUG.1136&from=L21haW4-

Comment #2 by Tony MOREHEN:

I published the program with the problem to the Software Farm as gbTerm.  Yes 
yet another terminal emulator.  This emulator has a quick navigate sidebar on 
the left.  It also has a pretty full cli, comparable to other standard 
emulators. gbTerm -h for instructions.  BTW I can't see any way to attach the 
program to this report.

Any way, the version I uploaded uses QT for the gui; you'll need to switch to 
one of the gtk components.  Clich Edit then Preferences then crash.

I did some more error tracing.  The crash occurs the first time that 
FillPicture in ColorButton.class is run.  When QT runs this function, $hPicture 
is Null.  When gtk runs FillPicture, $hPicture is not Null, but has 0 width and 
height (and probably other invalid parameters).  Hence, the crash at Draw.Begin.

Private Sub FillPicture()

 If $hPicture Then
   '$hPicture.Fill($iColor)
   Draw.Begin($hPicture)        '<===== crashes here
   Draw.LineStyle = Line.None
   Draw.FillStyle = Fill.Solid
   Draw.FillColor = $iColor
   Draw.Rect(2, 2, $hPicture.Width - 4, $hPicture.Height - 4)
   Draw.LineStyle = Line.Solid
   Draw.FillStyle = Fill.None
   Draw.Foreground = Color.LightForeground
   Draw.Rect(0, 0, $hPicture.Width, $hPicture.Height)
   Draw.Foreground = Color.White
   Draw.Rect(1, 1, $hPicture.Width - 2, $hPicture.Height - 2)
   Draw.End
 Endif

 $hButton.Picture = $hPicture

End

Tony MOREHEN changed the state of the bug to: Accepted.




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