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63 lines
2.6 KiB
C++
63 lines
2.6 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_DWRITEHELPERS_H_
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#define RM_GFX_UTIL_DWRITEHELPERS_H_
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#include <dwrite_1.h>
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namespace Gfx {
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namespace Util {
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// If |gdiEmulation| is true, the returns metrics have similar characteristics to those provided
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// by GDI+.
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DWRITE_TEXT_METRICS GetAdjustedDWriteTextLayoutMetrics(
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IDWriteTextLayout* textLayout, bool gdiEmulation);
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// Maps the GDI family name and italic/bold flags to the DirectWrite family name, weight, style,
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// and stretch.
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HRESULT GetDWritePropertiesFromGDIProperties(
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IDWriteFactory* factory, const WCHAR* gdiFamilyName, const bool gdiBold, const bool gdiItalic,
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DWRITE_FONT_WEIGHT& dwriteFontWeight, DWRITE_FONT_STYLE& dwriteFontStyle,
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DWRITE_FONT_STRETCH& dwriteFontStretch, WCHAR* dwriteFamilyName, UINT dwriteFamilyNameSize);
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void GetPropertiesFromDWriteFont(
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IDWriteFont* dwriteFont, const bool bold, const bool italic,
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DWRITE_FONT_WEIGHT* dwriteFontWeight, DWRITE_FONT_STYLE* dwriteFontStyle,
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DWRITE_FONT_STRETCH* dwriteFontStretch);
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// Creates a IDWriteFont using the GDI family name instead of the DirectWrite family name. For
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// example, 'Segoe UI' and 'Segoe UI Semibold' are separate family names with GDI whereas
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// DirectWrite uses the family name 'Segoe UI' for both and differentiates them by the font
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// style.
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IDWriteFont* CreateDWriteFontFromGDIFamilyName(IDWriteFactory* factory, const WCHAR* fontFamily);
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HRESULT GetFamilyNameFromDWriteFont(IDWriteFont* font, WCHAR* buffer, UINT bufferSize);
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HRESULT GetFamilyNameFromDWriteFontFamily(
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IDWriteFontFamily* fontFamily, WCHAR* buffer, UINT bufferSize);
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bool IsFamilyInSystemFontCollection(IDWriteFactory* factory, const WCHAR* familyName);
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IDWriteFont* FindDWriteFontInFontCollectionByGDIFamilyName(
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IDWriteFontCollection* fontCollection, const WCHAR* gdiFamilyName);
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} // namespace Util
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} // namespace Gfx
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#endif |