Re: [platform-swt-dev] SWT CAIRO_ANTIALIAS_SUBPIXEL

[Silenio Quarti <Silenio_Quarti@xxxxxxxxxx>]

Please open a enhancement bug report for
this. It probably requires new SWT API (a new constant -> SWT.SUBPIXEL).
I quickly looked and it seems it would only make sense on GTK/Cairo. There
is no equivalent on GDI+ and Cocoa.  Another possibility is to add
a constant SWT.BEST which maps to CAIRO_ANTIALIAS_SUBPIXEL
on cairo and it is the same as SWT.ON on the other platforms.

Silenio



From:      
 sylvain mouquet <sylvain.mouquet@xxxxxxxxx>
To:      
 platform-swt-dev@xxxxxxxxxxx,

Date:      
 07/17/2013 04:54 AM
Subject:    
   [platform-swt-dev]
SWT CAIRO_ANTIALIAS_SUBPIXEL
Sent by:    
   platform-swt-dev-bounces@xxxxxxxxxxx

---

Hi,

In the class org.eclipse.swt.graphics.GC,
it's not possible to use Cairo.CAIRO_ANTIALIAS_SUBPIXEL in the method setAntialias
:

public void setAntialias(int antialias) {
3046 if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
3047 if (data.cairo == 0 && antialias
== SWT.DEFAULT) return;
3048 int mode = 0;
3049 switch (antialias) {
3050 case SWT.DEFAULT: mode = Cairo.CAIRO_ANTIALIAS_DEFAULT;
break;
3051 case SWT.OFF: mode = Cairo.CAIRO_ANTIALIAS_NONE;
break;
3052 case SWT.ON: mode = Cairo.CAIRO_ANTIALIAS_GRAY;
3053            break;
3054 default:
3055 SWT.error(SWT.ERROR_INVALID_ARGUMENT);
3056 }
3057    initCairo();
3058    long /*int*/ cairo = data.cairo;
3059    Cairo.cairo_set_antialias(cairo,
mode);
3060}

it's possible to add it ?

Thanks,
Sylvain _______________________________________________
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