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THintWindow.CalcHintRect: return empty rect if hint is empty

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git-svn-id: trunk@38031 -
This commit is contained in:
mattias 2012-07-24 08:44:33 +00:00
parent 4e187f7a92
commit b74cf37371
1 changed files with 5 additions and 1 deletions
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6
lcl/include/hintwindow.inc
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@ -236,10 +236,14 @@ end;
function THintWindow.CalcHintRect(MaxWidth: Integer; const AHint: String; function THintWindow.CalcHintRect(MaxWidth: Integer; const AHint: String;
AData: Pointer): TRect; AData: Pointer): TRect;
begin begin
if AHint='' then
begin
Result:=Rect(0,0,0,0);
exit;
end;
if MaxWidth <= 0 then if MaxWidth <= 0 then
MaxWidth := Screen.Width - 4 * HintBorderWidth; MaxWidth := Screen.Width - 4 * HintBorderWidth;
Result := Rect(0, 0, MaxWidth, Screen.Height - 4 * HintBorderWidth); Result := Rect(0, 0, MaxWidth, Screen.Height - 4 * HintBorderWidth);
if AHint='' then exit;
DrawText(Canvas.GetUpdatedHandle([csFontValid]), PChar(AHint), Length(AHint), DrawText(Canvas.GetUpdatedHandle([csFontValid]), PChar(AHint), Length(AHint),
Result, DT_CALCRECT or DT_NOPREFIX or DT_WORDBREAK); Result, DT_CALCRECT or DT_NOPREFIX or DT_WORDBREAK);
inc(Result.Right, 4 * HintBorderWidth); inc(Result.Right, 4 * HintBorderWidth);