ResInsight/Fwk/AppFwk/cafVizExtensions/cafFixedAtlasFont.h
2020-06-19 08:00:01 +02:00

116 lines
3.9 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 "cvfBase.h"
#include "cvfFont.h"
#include "cvfGlyph.h"
#include "cvfObject.h"
#include "cvfString.h"
#include <map>
namespace cvf
{
class TextureImage;
class Glyph;
} // namespace cvf
namespace caf
{
//==================================================================================================
//
// Fixed atlas font class used to generate glyphs for a given character
//
//==================================================================================================
class FixedAtlasFont : public cvf::Font
{
public:
enum FontSize
{
POINT_SIZE_6, // 6pt
POINT_SIZE_8, // 8pt
POINT_SIZE_10,
POINT_SIZE_12,
POINT_SIZE_14,
POINT_SIZE_16, // 16pt
POINT_SIZE_24,
POINT_SIZE_32
};
public:
explicit FixedAtlasFont( FontSize size );
~FixedAtlasFont() override;
const cvf::String& name() const override;
cvf::ref<cvf::Glyph> getGlyph( wchar_t character ) override;
cvf::uint advance( wchar_t character, wchar_t nextCharacter ) override;
bool isEmpty() override;
private:
// Load/unload font
bool load( const char* name,
size_t numGlyphs,
const short* horizontalBearingsX,
const short* horizontalBearingsY,
const cvf::uint* horizontalAdvances,
const cvf::uint* characterWidths,
const cvf::uint* characterHeightss,
const size_t textureImageWidth,
const size_t textureImageHeight,
const size_t numTextureImageDataBlockCount,
const char** textureImageData );
void unload();
private:
cvf::String m_name;
size_t m_numGlyphs;
std::vector<short> m_horizontalBearingsX;
std::vector<short> m_horizontalBearingsY;
std::vector<cvf::uint> m_horizontalAdvances;
std::vector<cvf::uint> m_characterWidths;
std::vector<cvf::uint> m_characterHeights;
cvf::ref<cvf::TextureImage> m_textureImage;
// Glyph cache
typedef std::map<size_t, cvf::ref<cvf::Glyph>> MapType;
MapType m_atlasMap;
};
} // namespace caf