Re: putty can shape now..

[Behdad Esfahbod <behdad at cs dot toronto dot edu>]

CP-1256 should not be used in any stage in any software anymore.
A single-byte encoding for Unicode is already available.  It's
called UTF-8.

behdad


On Mon, 9 Feb 2004, ahmad khalifa wrote:

> hello, mr. musab...
>
> well, i think i have reached a solution for your first problem...
> which is, u want to give ExtTextOut a string, and it draws it, without
> shaping, or ReOrdering...
> now here is what i found out...
>
> when u call ExtTextOut with the flag ETO_GLYPH_INDEX, the input string
> lpString, is not a
> Unicode string oran ASCII string, its an INDEX string, that means (from what
> i understand) that
> lpString is a Double-Byte string of Glyph indices relative to the current
> selected font in the given
> display context...
> How to Convert to the magik Index string..?? --> GetCharacterPlacement()...
> GetCharacterPlacement takes a Single-Byte string, and returns a Double-Byte
> String of Indices
>
> now to give GetCharacterPlacement a single-byte string containing arabic
> chars, you have
> to convert from wide charecter (usually U+0637) to CP-1256 which is windows
> code page
> for  arabic (see Arabeyes' resources page) for example... 0x0627 => 0xc7
> someone from the senior Arabeyes members, should be able to help with this
> easily...
>
> and most important, in the PuTTY Configuration Dialog, goto Window/
> Appearance---
> choose a font and choose Arabic script (to turn the font's Code Page to
> arabic)...
>
> well, enough said... here is my code changes...
>
>
> at the end of the do_text() function there is a comment that says
> /* And 'normal' unicode characters */
>
> look for the following ExtTextOut(), and add this before it...
>
> //===================
>
> 		GCP_RESULTS gcpr;
> 		char buff1[1024];
> 		char buff2[1024];
> 		char buff4[1024];
> 		ZeroMemory(buff1, 1020);
> 		ZeroMemory(buff2, 1020);
> 		ZeroMemory(buff4, 1020);
>
> 		{
> 			int ak;
> 			for(ak=0; ak < 1020; ak++)
> 				buff4[ak] = GCPCLASS_NEUTRAL;
> 		}
>
> 		ZeroMemory(&gcpr, sizeof(gcpr));
> 		gcpr.lStructSize = sizeof(gcpr);
> 		gcpr.lpGlyphs = buff1;
> 		gcpr.lpOutString = buff2;
> 		gcpr.lpClass = buff4;
> 		gcpr.nGlyphs = 1020;
>
> 		{
> // this is a static array i wrote, to show you what charecters should be
> used...
> 		char temp1[] = { 0xd8, 0xda, 0xd9, 0xc7, 0xda, 0xd9, 0xda, 0xd9, 0x0};
> 		GetCharacterPlacement(hdc, temp1, 8, 0, &gcpr, FLI_MASK | GCP_CLASSIN)
> // GetCharacterPlacement() parses temp1 according to gcpr.lpClass
> // and returns the Glyph Index in gcpr.lpGlyph...
> 		}
>
>
> 		ExtTextOut(hdc, x,
> 		    y - font_height * (lattr == LATTR_BOT) + text_adjust,
> 		    ETO_GLYPH_INDEX | ETO_CLIPPED | ETO_OPAQUE, &line_box, buff1, 8,
> IpDx);
> // the lpString used here is buff1, which is gcpr.lpGlyph...
>
> //==============================
>
> well... try it and tell me how it went...
>
> _________________________________________________________________
> Add photos to your e-mail with MSN 8. Get 2 months FREE*.
> http://join.msn.com/?page=features/featuredemail
>
> _______________________________________________
> Developer mailing list
> Developer at arabeyes dot org
> http://lists.arabeyes.org/mailman/listinfo/developer
>
>