public virtual void Register(SafeContextHandle context)
{
unsafe
{
UnsafeNativeMethods.gvAddLibrary(context, (gvplugin_library_t*)_library.DangerousGetHandle());
}
}
public override void Register(SafeContextHandle context)
{
base.Register(context);
unsafe
{
GVC_t* gvc = (GVC_t*)context.DangerousGetHandle();
PluginEngine textLayoutEngine = Engines.Single(i => i.Api == api_t.TextLayout);
gvc->textlayout.engine = (gvtextlayout_engine_t*)textLayoutEngine.InstalledPluginData->engine;
}
}
public static string[] gvPluginList(SafeContextHandle gvc, string kind)
{
int count;
unsafe
{
byte ** data = gvPluginList(gvc, kind, out count, null);
string[] result = new string[count];
for (int i = 0; i < count; i++)
{
result[i] = Marshal.PtrToStringAnsi((IntPtr)data[i]);
gfree((IntPtr)data[i]);
}
gfree((IntPtr)data);
return(result);
}
}
public static extern int gvRender(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string format, IntPtr FILE_out);
public static extern int gvLayout(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string engine);
public static extern GraphHandle gvNextInputGraph(SafeContextHandle gvc);
public static extern string gvcBuildDate(SafeContextHandle gvc);
public static extern unsafe char **gvcInfo(SafeContextHandle gvc);
public static extern void gvFinalize(SafeContextHandle gvc);
public static extern void gvFinalize(SafeContextHandle gvc);
public static extern string gvcVersion(SafeContextHandle gvc);
public static unsafe extern char** gvcInfo(SafeContextHandle gvc);
public static extern string gvcBuildDate(SafeContextHandle gvc);
public static unsafe extern void gvAddLibrary(SafeContextHandle gvc, gvplugin_library_t* lib);
public static extern unsafe int gvRenderContext(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string format, void *context);
public static extern int gvRenderJobs(SafeContextHandle gvc, GraphHandle g);
public static extern int gvFreeLayout(SafeContextHandle gvc, GraphHandle g);
public static extern int gvLayout(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)]string engine);
public static extern int gvLayoutJobs(SafeContextHandle gvc, GraphHandle g);
private static unsafe extern byte** gvPluginList(SafeContextHandle gvc, [MarshalAs(UnmanagedType.LPStr)]string kind, out int sz, [MarshalAs(UnmanagedType.LPStr)]string unused);
public static extern GraphHandle gvNextInputGraph(SafeContextHandle gvc);
public static extern string gvcVersion(SafeContextHandle gvc);
public static extern int gvParseArgs(SafeContextHandle gvc, int argc, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1, ArraySubType = UnmanagedType.LPStr)]string[] argv);
public static extern int gvParseArgs(SafeContextHandle gvc, int argc, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1, ArraySubType = UnmanagedType.LPStr)] string[] argv);
public static string[] gvPluginList(SafeContextHandle gvc, string kind)
{
int count;
unsafe
{
byte** data = gvPluginList(gvc, kind, out count, null);
string[] result = new string[count];
for (int i = 0; i < count; i++)
{
result[i] = Marshal.PtrToStringAnsi((IntPtr)data[i]);
gfree((IntPtr)data[i]);
}
gfree((IntPtr)data);
return result;
}
}
public static extern GraphHandle gvPluginsGraph(SafeContextHandle gvc);
public static extern GraphHandle gvPluginsGraph(SafeContextHandle gvc);
public static extern int gvLayoutJobs(SafeContextHandle gvc, GraphHandle g);
public static extern int gvRender(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)]string format, IntPtr FILE_out);
public static extern int gvRenderFilename(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string format, [MarshalAs(UnmanagedType.LPStr)] string filename);
public static unsafe extern int gvRenderContext(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)]string format, void* context);
public static extern unsafe int gvRenderData(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string format, byte **result, uint *length);
public static unsafe extern int gvRenderData(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)]string format, byte** result, uint* length);
public static extern int gvFreeLayout(SafeContextHandle gvc, GraphHandle g);
public static extern int gvRenderFilename(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)]string format, [MarshalAs(UnmanagedType.LPStr)]string filename);
private static extern unsafe byte **gvPluginList(SafeContextHandle gvc, [MarshalAs(UnmanagedType.LPStr)] string kind, out int sz, [MarshalAs(UnmanagedType.LPStr)] string unused);
public static extern int gvRenderJobs(SafeContextHandle gvc, GraphHandle g);
public static extern unsafe void gvAddLibrary(SafeContextHandle gvc, gvplugin_library_t *lib);
private static void drawGraph(SafeContextHandle context, GraphHandle g)
{
int result = UnsafeNativeMethods.gvRenderFilename(context, g, "wpf", "test.dot");
if (result != 0)
{
string message = UnsafeNativeMethods.aglasterr();
throw new Exception(message);
}
}
