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Reinventing XAML?

From: "Siegfried Heintze" <siegfried@-------.--->
To: NULL
Date: 9/3/2008 8:55:00 PM

We have an existing application written in C++ that displays bitmaps 
(pixmaps, actually) on an embedded USB device. They chose C++ because they 
tell me C++ is better for communicating with devices than C# (so they tell 
me -- I did not make this decision).

We wanted to use XAML to render our diagrams for our application. We posted 
a query in the WPF forum and a response pointed us to the documentation for 
hosting a XAML/WPF application in a C++ GUI. However, they said that WPF 
does not use device contexts: it uses direct X rendering contexts so writing 
to a bit map was difficult and slow. I'll look into it further.

My team leader tells me to start investigating reinventing XAML by means of 
an XSLT that will generate C++ gdiplus code from XAML or SVG code.

Hmmmm....

So here is an example of some SVG code which is extremely similar to XAML 
code:
<path 
d="M11.083,10.631l0.34-0.143l-1.247-3.032l1.305-0.114l-1.56-1.559L8.447,4.281L7.88,4.338L2.296,4.323c-0.195,0-0.354,0.159-0.354,0.355L0.709,3.629h9.212v1.332l2.384,2.408c0.053,0.053,0.083,0.125,0.083,0.199c0,0.146-0.11,0.269-0.255,0.283l-1.162,0.114l1.084,2.556c0.014,0.035,0.021,0.071,0.021,0.109c0,0.114-0.069,0.219-0.175,0.262l-0.618,0.248"/>

The "M" means move to the absolute coordinates. "l" means lineto the next 
relative coordinates, "c" means to make a simple bezier curve with relative 
coordinates, etc... We have miles of this stuff we were going to render with 
XAML and now I have to render with C++.

So finally, here is my question: can I use standard XSL to parse that path 
statement and generate C++ code or would I have to use non-standard 
scripting (C#?) embedded in the XSL file to decypher it? I wish I could 
steal the source code for the FireFox SVG rendering engine!

Thanks!
Siegfried 




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