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Simplify the math.

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svn path=/trunk/; revision=63560
This commit is contained in:
Hermès Bélusca-Maïto 2014-06-08 17:36:12 +00:00
parent 1476e535cf
commit cd934cf648
1 changed files with 3 additions and 4 deletions
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7
reactos/win32ss/user/winsrv/consrv/frontends/gui/text.c
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@ -167,12 +167,11 @@ CopyLines(PTEXTMODE_SCREEN_BUFFER Buffer,
}
else // if (End->Y > Begin->Y)
{
NumChars = (Buffer->ScreenBufferSize.X - 1) - (Begin->X) + 1;
NumChars = Buffer->ScreenBufferSize.X - Begin->X;
if (Begin->Y + 1 <= End->Y - 1)
if (End->Y >= Begin->Y + 2)
{
NumChars += ( (Buffer->ScreenBufferSize.X - 1) + 1 ) *
( (End->Y - 1) - (Begin->Y + 1) + 1);
NumChars += (End->Y - Begin->Y - 1) * Buffer->ScreenBufferSize.X;
}
NumChars += End->X + 1;