ResInsight/Fwk/VizFwk/LibRender/cvfFixedAtlasFont.h

101 lines
3.4 KiB
C++

//##################################################################################################
//
// Custom Visualization Core library
// Copyright (C) 2011-2013 Ceetron AS
//
// This library may be used under the terms of either the GNU General Public License or
// the GNU Lesser General Public License as follows:
//
// GNU General Public License Usage
// This library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
// for more details.
//
// GNU Lesser General Public License Usage
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
// for more details.
//
//##################################################################################################
#pragma once
#include "cvfObject.h"
#include "cvfFont.h"
#include "cvfGlyph.h"
#include "cvfString.h"
#include <map>
namespace cvf {
class TextureImage;
class Glyph;
//==================================================================================================
//
// Fixed atlas font class used to generate glyphs for a given character
//
//==================================================================================================
class FixedAtlasFont : public Font
{
public:
enum FontSize
{
STANDARD, // 8pt
LARGE // 16pt
};
public:
FixedAtlasFont(FontSize size);
virtual ~FixedAtlasFont();
virtual const String& name() const;
virtual ref<Glyph> getGlyph(wchar_t character);
virtual uint advance(wchar_t character, wchar_t nextCharacter);
virtual bool isEmpty();
private:
// Load/unload font
bool load(const char* name, size_t numGlyphs,
const short* horizontalBearingsX, const short* horizontalBearingsY,
const uint* horizontalAdvances, const uint* characterWidths, const uint* characterHeightss,
const size_t textureImageWidth, const size_t textureImageHeight,
const size_t numTextureImageDataBlockCount, const char** textureImageData);
void unload();
private:
String m_name;
size_t m_numGlyphs;
std::vector<short> m_horizontalBearingsX;
std::vector<short> m_horizontalBearingsY;
std::vector<uint> m_horizontalAdvances;
std::vector<uint> m_characterWidths;
std::vector<uint> m_characterHeights;
ref<TextureImage> m_textureImage;
// Glyph cache
typedef std::map<size_t, ref<Glyph> > MapType;
MapType m_atlasMap;
};
} // namespace cvf