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/*
* This source file is part of libRocket, the HTML/CSS Interface Middleware
*
* For the latest information, see http://www.librocket.com
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#include "precompiled.h"
#include "../../Include/Rocket/Core/StreamFile.h"
#include "../../Include/Rocket/Core/FileInterface.h"
#include "../../Include/Rocket/Core.h"
namespace Rocket {
namespace Core {
StreamFile::StreamFile()
{
file_handle = 0;
length = 0;
}
StreamFile::~StreamFile()
{
if (file_handle)
Close();
}
/// Attempts to open the stream pointing at a given URL.
bool StreamFile::Open(const String& path)
{
String url_safe_path = path.Replace(":", "|");
SetStreamDetails(URL(url_safe_path), Stream::MODE_READ);
if (file_handle)
Close();
// Fix the path if a leading colon has been replaced with a pipe.
String fixed_path = path.Replace("|", ":");
file_handle = GetFileInterface()->Open(fixed_path);
if (!file_handle)
{
Log::Message(Log::LT_WARNING, "Unable to open file %s.", fixed_path.CString());
return false;
}
GetLength();
return true;
}
// Closes the stream.
void StreamFile::Close()
{
if (file_handle)
{
GetFileInterface()->Close(file_handle);
file_handle = 0;
}
length = 0;
}
/// Returns the size of this stream (in bytes).
size_t StreamFile::Length() const
{
return length;
}
// Returns the position of the stream pointer (in bytes).
size_t StreamFile::Tell() const
{
return GetFileInterface()->Tell(file_handle);
}
// Sets the stream position (in bytes).
bool StreamFile::Seek(long offset, int origin) const
{
return GetFileInterface()->Seek(file_handle, offset, origin);
}
// Read from the stream.
size_t StreamFile::Read(void* buffer, size_t bytes) const
{
return GetFileInterface()->Read(buffer, bytes, file_handle);
}
// Write to the stream at the current position.
size_t StreamFile::Write(const void* ROCKET_UNUSED_PARAMETER(buffer), size_t ROCKET_UNUSED_PARAMETER(bytes))
{
ROCKET_UNUSED(buffer);
ROCKET_UNUSED(bytes);
ROCKET_ERROR;
return 0;
}
// Truncate the stream to the specified length.
size_t StreamFile::Truncate(size_t ROCKET_UNUSED_PARAMETER(bytes))
{
ROCKET_UNUSED(bytes);
ROCKET_ERROR;
return 0;
}
// Returns true if the stream is ready for reading, false otherwise.
bool StreamFile::IsReadReady()
{
return Tell() < Length();
}
// Returns true if the stream is ready for writing, false otherwise.
bool StreamFile::IsWriteReady()
{
return false;
}
// Determines the length of the stream.
void StreamFile::GetLength()
{
length = GetFileInterface()->Length(file_handle);
}
}
}
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