[Gtk-sharp-list] new Gdk.Pixbuf (svg_stream) fails on windows but works on unix

[Thomas Wach]

Hi Stephane,

yes, the test leads to 

Linux box.........: ani bmp gif ico jpeg pcx png pnm ras tga tiff wbmp xbm
xpm wmf svg 

Windows box..: ani bmp gif ico jpeg pcx png pnm ras tga tiff wbmp xbm xpm

So indeed, the pixbuf on my Windows box does not support svg.
Thanks a lot for that hint! So it is not a problem of missing dlls I have to
look for!

So Billy's post regarding the configuration file of gdk_pixbuf.loader may
take me further.

Regards
Thomas


Stephane Delcroix wrote:
> 
> Hi,
> 
> Gdk contains some helpers to load pixbufs from resources:
> Pixbuf loaded_from_res = Gdk.Pixbuf.LoadFromResource
> ("resourcename.png");
> 
> But that's unrelated to your problem. In your case, it looks like the
> gdk_pixbuf you're using on windows is not compiled with svg support.
> 
> You can list the supported formats in gdk_pixbuf by a code like this:
> 
> foreach (PixbufFormat format in Pixbuf.Formats)
>         Console.WriteLine (format.Name);
> 
> regards
> 
> s
> 
> On Sun, 2008-10-19 at 06:04 -0700, thomas_wach wrote:
>> Hello,
>> 
>> I am working with mono-2.0 an Linux (fc8) and Windows XP(SP3). I use
>> monodevelop 1.0. Everything compiled from source on my Linux box rund
>> fine.
>> On my Windows box the provided setup mono-2.0-gtksharp-2.10.4-win32-5.exe
>> ist correctly installed and mods done to the mono-config file.
>> 
>> I created some SVG-icons with inkscape (icon_64x64), saved them to the
>> project folder and imported them as resources with monodevelop.
>> 
>> Here is the code that populates my combobox-store with the icons I need:
>> 
>> System.Reflection.Assembly ass =
>> System.Reflection.Assembly.GetExecutingAssembly();
>> string[] resNames = ass.GetManifestResourceNames();
>> foreach (string resItemName in resNames) {
>>   try
>>   {
>>      if (resItemName.StartsWith("shape-") &&
>> (resItemName.EndsWith(".svg")
>> || resItemName.EndsWith(".png"))) {
>>       System.IO.Stream s = ass.GetManifestResourceStream(resItemName);
>>       store.AppendValues ("   #" + resItemName.Substring(6,1) + "   ",
>> new
>> Gdk.Pixbuf(s));
>>     }
>>   }
>>   catch (Exception e)
>>   {
>>     DebugMessage (e.ToString());
>>   }
>> }
>> 
>> This works PERFECT on my Linux box.
>> 
>> BUT on my Windows box I get the following error whem it tries to open a
>> .svg-file:
>> 
>> GLib.GException: Format der Bilddatei unbekannt (format of picturefile
>> unknown)
>>   at Gdk.PixbufLoader.Close () [0x00000] 
>>   at Gdk.PixbufLoader.InitFromStream (System.IO.Stream stream) [0x00000] 
>>   at Gdk.PixbufLoader..ctor (System.IO.Stream stream) [0x00000] 
>>   at Gdk.Pixbuf..ctor (System.IO.Stream stream) [0x00000] 
>>   at GladeApp..ctor (System.String[] args) [0x00000] 
>> 
>> Creating the pixbuf from the .png-icons contained in the manifested
>> resource
>> works on both boxes!
>> Only the SVG-files do not.
>> 
>> The Windows box is PURE mono, so NO .NET 1.1 nor .Net 2.0 are installed
>> there.
>> So the gtksharp-sdk-2.10.3.exe is NOT installed, because it depends on
>> .NET
>> 1.1.
>> 
>> By the way, if I try to directly create a pixbuf with the FromFile-Method
>> it
>> throws exceptions regarding a missing librsvg-2. But that IS NOT the
>> case.
>> librsvg-2-2.dll and librsvg-2.dll (size 251kb) are correctly residing in
>> %MONOPATH%\bin !
>> 
>> Of course I searched the net, but all hints I found did not solved the
>> problem.
>>  - prior call Gtk.Application.Init() -> no change
>>  - referencing Mono.Cairo in the project -> no change
>>  - found some articels talking about a librsvg2-common, but find no valid
>> dll for win32 to setup or copy
>> 
>> Maybe the SVG-files themselves have some issues regardin DOCTYPE, DTD or
>> something else?
>> I do not think that the different line breaks in unix/windows are
>> responsible, do you?
>> 
>> Here is the header of the a sample SVG-file that does not load on
>> windows:
>> (the complete SVG-file is attached) 
>> http://www.nabble.com/file/p20055917/shape-1.svg shape-1.svg 
>> 
>> <?xml version="1.0" encoding="UTF-8" standalone="no"?>
>> <!-- Created with Inkscape (http://www.inkscape.org/) -->
>> <svg
>>    xmlns:dc="http://purl.org/dc/elements/1.1/"
>>    xmlns:cc="http://creativecommons.org/ns#"
>>    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>>    xmlns:svg="http://www.w3.org/2000/svg"
>>    xmlns="http://www.w3.org/2000/svg"
>>    xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
>>    xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
>>    width="64px"
>>    height="64px"
>>    id="svg2383"
>>    sodipodi:version="0.32"
>>    inkscape:version="0.46"
>>    sodipodi:docname="shape-1.svg"
>>    inkscape:output_extension="org.inkscape.output.svg.inkscape">
>> 
>> 
>> I think I provided every information needed, but let me know, if I missed
>> some important.
>> 
>> Anyone got the same problem and get rid of it?
>> Anyone knows about special SVG-issues that could lead to this behaviour?
>> 
>> So far ...
>> Kind regards
>> Thomas
> 
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> 
> 

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