gecko-dev/gfx/2d/ScaledFontDWrite.cpp

82 строки
3.0 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Corporation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Bas Schouten <bschouten@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "ScaledFontDWrite.h"
#include "PathD2D.h"
#include <vector>
namespace mozilla {
namespace gfx {
TemporaryRef<Path>
ScaledFontDWrite::GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget)
{
if (aTarget->GetType() != BACKEND_DIRECT2D) {
// For now we only support Direct2D.
return NULL;
}
RefPtr<PathBuilder> pathBuilder = aTarget->CreatePathBuilder();
PathBuilderD2D *pathBuilderD2D =
static_cast<PathBuilderD2D*>(pathBuilder.get());
std::vector<UINT16> indices;
std::vector<FLOAT> advances;
std::vector<DWRITE_GLYPH_OFFSET> offsets;
indices.resize(aBuffer.mNumGlyphs);
advances.resize(aBuffer.mNumGlyphs);
offsets.resize(aBuffer.mNumGlyphs);
memset(&advances.front(), 0, sizeof(FLOAT) * aBuffer.mNumGlyphs);
for (unsigned int i = 0; i < aBuffer.mNumGlyphs; i++) {
indices[i] = aBuffer.mGlyphs[i].mIndex;
offsets[i].advanceOffset = aBuffer.mGlyphs[i].mPosition.x;
offsets[i].ascenderOffset = -aBuffer.mGlyphs[i].mPosition.y;
}
mFontFace->GetGlyphRunOutline(mSize, &indices.front(), &advances.front(),
&offsets.front(), aBuffer.mNumGlyphs,
FALSE, FALSE, pathBuilderD2D->GetSink());
return pathBuilder->Finish();
}
}
}