public bool GetStream(int idx, out CGPDFStream result)
{
IntPtr ptr;
var r = CGPDFArrayGetStream(handle, idx, out ptr);
result = r ? new CGPDFStream(ptr) : null;
return(r);
}
static IntPtr Create(CGPDFStream stream, NSDictionary?streamResources = null, CGPDFContentStream?parent = null)
{
if (stream is null)
{
throw new ArgumentNullException(nameof(stream));
}
return(CGPDFContentStreamCreateWithStream(stream.Handle, streamResources.GetHandle(), parent.GetHandle()));
}
public bool GetStream(string key, out CGPDFStream result)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
IntPtr ptr;
var r = CGPDFDictionaryGetStream(handle, key, out ptr);
result = r ? new CGPDFStream(ptr) : null;
return(r);
}
public CGPDFStream[] GetStreams()
{
using (CFArray a = new CFArray(CGPDFContentStreamGetStreams(Handle))) {
var streams = new CGPDFStream [a.Count];
for (int i = 0; i < a.Count; i++)
{
streams [i] = new CGPDFStream(a.GetValue(i));
}
return(streams);
// note: CGPDFStreamRef is weird because it has no retain/release calls unlike other CGPDF* types
}
}
public CGPDFContentStream(CGPDFStream stream, NSDictionary streamResources = null, CGPDFContentStream parent = null)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
var dh = streamResources == null ? IntPtr.Zero : streamResources.Handle;
var ph = parent == null ? IntPtr.Zero : parent.Handle;
Handle = CGPDFContentStreamCreateWithStream(stream.Handle, dh, ph);
}
public bool TryGetValue(out CGPDFStream value)
{
IntPtr ip;
if (CGPDFObjectGetValue(Handle, CGPDFObjectType.Stream, out ip))
{
value = new CGPDFStream(ip);
return(true);
}
else
{
value = null;
return(false);
}
}
public bool TryPop(out CGPDFStream value)
{
IntPtr ip;
if (CGPDFScannerPopStream(Handle, out ip))
{
value = new CGPDFStream(ip);
return(true);
}
else
{
value = null;
return(false);
}
}
public bool GetStream(int idx, out CGPDFStream result)
{
return(GetStream((nint)idx, out result));
}
public CGPDFContentStream(CGPDFStream stream, NSDictionary?streamResources = null, CGPDFContentStream?parent = null)
: base(Create(stream, streamResources, parent), true)
{
}
