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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFX_TextRenderer_H
#define GFX_TextRenderer_H
#include "mozilla/gfx/2D.h"
#include "nsISupportsImpl.h"
#include <string>
namespace mozilla {
namespace layers {
class Compositor;
class TextRenderer
{
~TextRenderer();
public:
NS_INLINE_DECL_REFCOUNTING(TextRenderer)
explicit TextRenderer(Compositor *aCompositor)
: mCompositor(aCompositor), mMap({nullptr, 0})
{
}
void RenderText(const std::string& aText, const gfx::IntPoint& aOrigin,
const gfx::Matrix4x4& aTransform, uint32_t aTextSize,
uint32_t aTargetPixelWidth);
gfx::DataSourceSurface::MappedSurface& GetSurfaceMap() { return mMap; }
private:
// Note that this may still fail to set mGlyphBitmaps to a valid value
// if the underlying CreateDataSourceSurface fails for some reason.
void EnsureInitialized();
RefPtr<Compositor> mCompositor;
RefPtr<gfx::DataSourceSurface> mGlyphBitmaps;
gfx::DataSourceSurface::MappedSurface mMap;
};
} // namespace layers
} // namespace mozilla
#endif
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