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56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
/*
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Copyright (C) 2013 Birunthan Mohanathas
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef RM_GFX_UTIL_DWRITEFONTFILEENUMERATOR_H_
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#define RM_GFX_UTIL_DWRITEFONTFILEENUMERATOR_H_
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#include <vector>
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#include <dwrite_1.h>
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namespace Gfx {
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namespace Util {
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// Implements IDWriteFontFileEnumerator by enumerating over std::vector<IDWriteFontFile*>.
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class DWriteFontFileEnumerator : public IDWriteFontFileEnumerator
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{
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public:
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DWriteFontFileEnumerator(const std::vector<IDWriteFontFile*>& fontFiles);
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// IUnknown
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID uuid, void** object) override;
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virtual ULONG STDMETHODCALLTYPE AddRef() override;
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virtual ULONG STDMETHODCALLTYPE Release() override;
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// IDWriteFontFileEnumerator
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virtual HRESULT STDMETHODCALLTYPE MoveNext(BOOL* hasCurrentFile) override;
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virtual HRESULT STDMETHODCALLTYPE GetCurrentFontFile(IDWriteFontFile** currentFontFile) override;
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private:
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ULONG m_RefCount;
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const std::vector<IDWriteFontFile*>& m_FontFiles;
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// Current index of |m_FontFiles|. The type is int instead of size_t as it starts from -1 as
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// required by IDWriteFontFileEnumerator.
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int m_CurrentFontFileIndex;
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};
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} // namespace Util
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} // namespace Gfx
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#endif |