Re: [gsl-dev] replace the .bmp splashscreen

[Philipp Lohmann]

eric b wrote:
Hi Herbert, all,

Le 15 avr. 09 à 09:07, Herbert Duerr a écrit :

Create a SvFileStream/SvMemoryStream/ etc. (see tools/stream.hxx)
Create a PNGReader for that stream (see vcl/pngread.hxx)
Do a Read() on that PNGReader to get the BitmapEx.

Thorsten Behrens (thanks to him ! ) helped me to understand how to play 
with Streams, and now I got some working code (no more crashes, 
havePng() returns true, and I can verify the Stream is open and 
functionnal), but I need your opinion.

At the beginning, I modified the splash.hxx and the splash.cxx 
accordingly to replace all .bmp with .png equivalents. As summary, the 
current buffer seems to be ok. , but I continue to see nothing, and this 
is certainly my fault.

Probably the problem is caused by  SetBackgroundBitmap( _aIntroBmp );

SetBackgroundBitmap does not do anything on the mac (see 
vcl/aqua/source/window/salframe.cxx AquaSalFrame::SetBackgroundBitmap).

I replaced in SplashScreen::updateStatus() with :

        Point xtopleft(212,216);
        OutputDevice::DrawBitmapEx (xtopleft, _aIntroPng);

try painting at (0,0), vcl coordinates are left and topdown.

However drawing a BitmapEx will not make the intro window transparent, 
it will just draw the png transparently onto the window's background.

Kind regards, pl

--
Sanity is just a bad excuse for a lack of imagination.
     -- Author unknown

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