Calculating text rect

[Dibo]

Hi,

Exists any BGRABitmap function which calculate text rect similar like LCL do?

Code: [Select]

LCLIntf.DrawText(tmp.Canvas.Handle, PChar(AText), Length(AText), ARect,  DT_CENTER or DT_VCENTER or DT_WORDBREAK or DT_CALCRECT);
I need this because there is not solved problem with font height difference between win32, qt and gtk2 in LCL (details: http://www.lazarus.freepascal.org/index.php/topic,16638.15.html ). Above code calculate rect for LCL, but maybe BGRABitmap can somehow create own equivalent for BGRA font support?

Regards

[lainz]

You've checked BGRAText unit?

[Dibo]

Yes, but there are only functions for calculating font height, but there is no which return me whole height with word break option etc.

[circular]

There is no function to do this. How should it be done ? With TextFitInfo function ?

Note that you should not use BGRAText directly, because those functions a rather low level.

[Dibo]

There is no function to do this. How should it be done ? With TextFitInfo function ?

If possible, yes. It should have similar params as TextRect method - text as string, TTextStyle and TRect, but rect should be as var and it height should be calculated like DrawText do. If it is difficult to do, it is not necessary. I'll try to around this in a different way

[circular]

Well in fact it would be necessary to rewrite TextRect as well so that it gives the same result. For example if the function that returns the total height returns 3 lines and when you use TextRect to draw, there are 2 or 4, that's a problem of inconsistency.

If you do something to handle this, maybe it can be added to BGRABitmap, what do you think ?

[circular]

Added text measuring with word break in version 9.7 of BGRABitmap:

Code: Delphi  [Select][+][-]

1.         function TextSize(sUTF8: string; AMaxWidth: integer): TSize; override;
2.         function TextSize(sUTF8: string; AMaxWidth: integer; ARightToLeft: boolean): TSize; override;
3.         function TextFitInfo(sUTF8: string; AMaxWidth: integer): integer; override;