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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 "FontFace.h"
#include "FontFaceHandle.h"
#include <Rocket/Core/Log.h>
namespace Rocket {
namespace Core {
namespace BitmapFont {
FontFace::FontFace(BitmapFontDefinitions *_face, Font::Style _style, Font::Weight _weight, bool _release_stream) : Rocket::Core::FontFace(_style, _weight, _release_stream)
{
face = _face;
}
FontFace::~FontFace()
{
ReleaseFace();
}
// Returns a handle for positioning and rendering this face at the given size.
Rocket::Core::FontFaceHandle* FontFace::GetHandle(const String& _raw_charset, int size)
{
UnicodeRangeList charset;
HandleMap::iterator iterator = handles.find(size);
if (iterator != handles.end())
{
const HandleList& handles = (*iterator).second;
// Check all the handles if their charsets match the requested one exactly (ie, were specified by the same
// string).
String raw_charset(_raw_charset);
for (size_t i = 0; i < handles.size(); ++i)
{
if (handles[i]->GetRawCharset() == _raw_charset)
{
handles[i]->AddReference();
return (FontFaceHandle*)handles[i];
}
}
// Check all the handles if their charsets contain the requested charset.
if (!UnicodeRange::BuildList(charset, raw_charset))
{
Log::Message(Log::LT_ERROR, "Invalid font charset '%s'.", _raw_charset.CString());
return NULL;
}
for (size_t i = 0; i < handles.size(); ++i)
{
bool range_contained = true;
const UnicodeRangeList& handle_charset = handles[i]->GetCharset();
for (size_t j = 0; j < charset.size() && range_contained; ++j)
{
if (!charset[j].IsContained(handle_charset))
range_contained = false;
}
if (range_contained)
{
handles[i]->AddReference();
return (FontFaceHandle*)handles[i];
}
}
}
// See if this face has been released.
if (face == NULL)
{
Log::Message(Log::LT_WARNING, "Font face has been released, unable to generate new handle.");
return NULL;
}
// Construct and initialise the new handle.
FontFaceHandle* handle = new FontFaceHandle();
if (!handle->Initialise(face, _raw_charset, size))
{
handle->RemoveReference();
return NULL;
}
// Save the handle, and add a reference for the callee. The initial reference will be removed when the font face
// releases it.
if (iterator != handles.end())
(*iterator).second.push_back(handle);
else
handles[size] = HandleList(1, handle);
handle->AddReference();
return handle;
}
// Releases the face's structure.
void FontFace::ReleaseFace()
{
delete face;
}
}
}
}
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