[Mono-dev] System.Drawing.Graphics.MeasureCharacterRanges broken with empty layout rectangle

[Stefanos A.]

When MeasureCharacterRanges is passed an empty layout rectangle
(RectangleF.Empty), it should not perform any word wrapping. Attached is
a test case that demonstrates the issue (runs fine under .Net).

Compile with "gmcs Program.cs -r:System.Drawing.dll".

Expected output:

$ mono Program.exe 
Using rectangle {X=0,Y=0,Width=100,Height=100}:
{X=0,Y=0,Width=9,Height=18}
{X=9,Y=0,Width=9,Height=18}
{X=18,Y=0,Width=8,Height=18}

Using rectangle {X=0,Y=0,Width=0,Height=0}:
{X=0,Y=0,Width=9,Height=18}
{X=9,Y=0,Width=9,Height=18}
{X=18,Y=0,Width=8,Height=18}


Observed output:

$ mono Program.exe 
Using rectangle {X=0,Y=0,Width=100,Height=100}:
{X=0,Y=0,Width=9,Height=18}
{X=9,Y=0,Width=9,Height=18}
{X=18,Y=0,Width=8,Height=18}

Using rectangle {X=0,Y=0,Width=0,Height=0}:
{X=-4194304,Y=-4194304,Width=8388608,Height=8388608}
{X=-4194304,Y=-4194304,Width=8388608,Height=8388608}
{X=-4194304,Y=-4194304,Width=8388608,Height=8388608}
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