Re: [Guidolib-devel] new engine version 1.6.5

[Michael C. <win...@gm...>]

I 'm trying, but I do get some weird results.
I 'm trying to debug based on the DLLs, not the Guido source.
When I pass my own Direct2D (incomplete) implementation, I get some calls
to MoveTo() and SetLineWidth() with weird float values.

Perhaps anyone can share with me a "correct" draw code (that would simply
draw a guido string to a HDC) so I am sure that I am calling the library
correctly.
Currently I 'm doing this (error checking removed):

---------------------------------
GSystemWin32 sys(hDC, hDC);
auto ddev = sys.CreateDisplayDevice();
auto& dev = *ddev;

GuidoInitDesc gd = { &dev, 0, "guido2", "Calibri" };
GuidoOnDrawDesc desc;
GuidoInit(&gd);
GuidoPageFormat fmt = { 0 };
GuidoGetDefaultPageFormat(&fmt);
fmt.width = 2080;
fmt.height = 1600;
 ARHandler arh;
GuidoParseString(gstr, &arh);
GuidoAR2GR(arh, 0, &desc.handle);
GuidoResizePageToMusic(desc.handle);
GuidoGetPageFormat(desc.handle, 1, &fmt);

desc.hdc = &dev;
desc.page = 1;
desc.updateRegion.erase = true;
desc.scrollx = desc.scrolly = 0;
desc.sizex = (int)fmt.width;
desc.sizey = (int)fmt.height;
GuidoResizePageToMusic(desc.handle);
desc.scrollx = desc.scrolly = 0;
GuidoErrCode ec = GuidoOnDraw(&desc);
GuidoResizePageToMusic(desc.handle);

-------------------------------

This works fine with GSystemWin32sys.









2017-08-21 11:58 GMT+03:00 Dominique Fober <fo...@gr...>:

> Hi Michael,
>
> The GDI an GDIPlus devices are quite old. I didn’t checked how it works on
> the latest Windows OS.
> In addition, there is no application to test on the repository. I suggest
> to test with a minimal application in order to find what’s going wrong.
> Regarding Direct2D, I’m not aware of any implementation. It should not be
> difficult to build one, you have only to implement the VGDevice, VGSystem
> and VGFont interfaces.
> —
> Dominique
>
>
> Le 12 août 2017 à 21:39, Michael Chourdakis <win...@gm...> a
> écrit :
>
> I 've trouble with GDI+.
>
> GSystemWin32 sys(hDC, hDC);
> DeviceWin32 dev(hDC, &sys);
> This works.
>
> GSystemWin32GDIPlus sys(hDC,hDC);
> GDeviceWin32GDIPlus dev(hDC,&sys);
>
> This succeeds, but I get an empty white bitmap.
>
> Am I missing some extra initialization for GDI+?
> Also, I 'm willing to make a Direct2D implementation, anyone already
> working on it?
>
> Thanks.
>
>
>
>
> 2017-07-25 15:57 GMT+03:00 Dominique Fober <fo...@gr...>:
>
>> Hi all,
>>
>> The last commit to the ‘dev’ branch brings a significant change to the
>> guido engine.
>> Internal operations have been revised in a more functional approach,
>> which is transparent for end users.
>> It comes also with a syntax change for ornaments (\trill \turn \mordent)
>> that requires existing gmn code to be updated.
>> The reason of this breach of compatibility is quite simple: the previous
>> syntax was making use of a chord to specify the non-notated note part of
>> the ornament (e.g. \trill{g, f#} to indicate a trill on ‘g’ using ‘f#’ as
>> second note), which was preventing chords ornaments.
>> With the new design, ornaments work like other tags and the alternate
>> note is specified as a parameter (e.g. \trill<“f#’>(g) ).
>>
>> By the way and since compatibility was broken, inverted dy for dynamics
>> (\cresc, \decresc) has also been fixed and works now similarly to all the
>> other tags. Again, existing scripts with dynamics and dy attributes have to
>> be updated.
>>
>> These are the major changes. See the change log for all details and let
>> me know if these changes pose problems to you.
>> All the best,
>> —
>> Dominique
>>
>>
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>
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