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2d86f6da9c
Allows to match Windows font size selection by converting font heights to point sizes using the TrueType tables.
106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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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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*
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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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*
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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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*/
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#ifndef GRAPHICS_FONTS_TTF_H
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#define GRAPHICS_FONTS_TTF_H
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#include "common/scummsys.h"
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#ifdef USE_FREETYPE2
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#include "common/stream.h"
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namespace Graphics {
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class Font;
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/**
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* This specifies the mode in which TTF glyphs are rendered. This, for example,
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* allows to render glyphs fully monochrome, i.e. without any anti-aliasing.
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*/
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enum TTFRenderMode {
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/**
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* Standard render mode. Equivalent of FreeType2's FT_RENDER_MODE_NORMAL.
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*/
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kTTFRenderModeNormal,
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/**
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* Use lighter hinting. Equivalent of FreeType2's FT_RENDER_MODE_LIGHT.
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*/
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kTTFRenderModeLight,
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/**
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* Render fully monochrome. This makes glyph pixels either be fully opaque
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* or fully transparent.
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*/
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kTTFRenderModeMonochrome
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};
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/**
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* This specifies how the font size is defined.
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*/
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enum TTFSizeMode {
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/**
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* Character height only.
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*
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* This matches rendering obtained when calling
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* CreateFont in Windows with negative height values.
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*/
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kTTFSizeModeCharacter,
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/**
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* Full cell height.
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*
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* This matches rendering obtained when calling
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* CreateFont in Windows with positive height values.
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*/
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kTTFSizeModeCell
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};
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/**
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* Loads a TTF font file from a given data stream object.
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*
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* @param stream Stream object to load font data from.
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* @param size The point size to load.
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* @param sizeMode The point size definition used for the size parameter.
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* @param dpi The dpi to use for size calculations, by default 72dpi
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* are used.
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* @param renderMode FreeType2 mode used to render glyphs. @see TTFRenderMode
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* @param mapping A mapping from code points 0-255 into UTF-32 code points.
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* This can be used to support various 8bit character sets.
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* In case the msb of the UTF-32 code point is set the font
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* loading fails in case no glyph for it is found. When this
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* is non-null only characters given in the mapping are
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* supported.
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* @return 0 in case loading fails, otherwise a pointer to the Font object.
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*/
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Font *loadTTFFont(Common::SeekableReadStream &stream, int size, TTFSizeMode sizeMode = kTTFSizeModeCharacter, uint dpi = 0, TTFRenderMode renderMode = kTTFRenderModeLight, const uint32 *mapping = 0);
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void shutdownTTF();
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} // End of namespace Graphics
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#endif
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#endif
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