/// <summary>
/// Read uncompressed file contents into the specified buffer. Returns
/// 0 if at the end of file, or the number of bytes read.
/// Throws an exception if an error occurred.
/// </summary>
public int ReadFile(byte[] buffer)
{
if (buffer == null || buffer.Length == 0)
{
throw new ArgumentException("Buffer can't be null or zero length.", "buffer");
}
var pb = new PinnedObject(buffer);
var retval = CfxApi.ZipReader.cfx_zip_reader_read_file(NativePtr, pb.PinnedPtr, (UIntPtr)buffer.LongLength);
pb.Free();
if (retval < 0)
{
throw new CfxException("Failed to read from zip file");
}
return(retval);
}
/// <summary>
/// Read up to (buffer.Length - bufferOffset) bytes into |buffer|. Reading begins at
/// the specified byte dataOffset. Writing begins at the
/// specified byte bufferOffset.
/// Returns the number of bytes read.
/// </summary>
public int GetData(byte[] buffer, int bufferOffset, int dataOffset)
{
if (buffer == null || buffer.Length == 0)
{
throw new ArgumentException("Buffer is null or zero length.", "buffer");
}
var maxBytes = buffer.Length - bufferOffset;
if (maxBytes <= 0)
{
throw new ArgumentException("bufferOffset >= buffer.Length.", "bufferOffset");
}
var po = new PinnedObject(buffer);
var retval = CfxApi.BinaryValue.cfx_binary_value_get_data(NativePtr, po.PinnedPtr + bufferOffset, (UIntPtr)maxBytes, (UIntPtr)dataOffset);
po.Free();
return((int)retval);
}
/// <summary>
/// Retrieve the page ranges.
/// </summary>
/// <remarks>
/// See also the original CEF documentation in
/// <see href="https://bitbucket.org/chromiumfx/chromiumfx/src/tip/cef/include/capi/cef_print_settings_capi.h">cef/include/capi/cef_print_settings_capi.h</see>.
/// </remarks>
public CfxRange[] GetPageRanges()
{
var rangesCount = CfxApi.PrintSettings.cfx_print_settings_get_page_ranges_count(NativePtr);
IntPtr[] pp = new IntPtr[(ulong)rangesCount];
PinnedObject pp_pinned = new PinnedObject(pp);
int ranges_nomem;
CfxApi.PrintSettings.cfx_print_settings_get_page_ranges(NativePtr, ref rangesCount, pp_pinned.PinnedPtr, out ranges_nomem);
pp_pinned.Free();
if (ranges_nomem != 0)
{
throw new OutOfMemoryException();
}
var retval = new CfxRange[(ulong)rangesCount];
for (ulong i = 0; i < (ulong)rangesCount; ++i)
{
retval[i] = CfxRange.WrapOwned(pp[i]);
}
return(retval);
}
public PinnedString(string s)
{
Obj = new PinnedObject(s);
Length = s != null ? s.Length : 0;
}
