mirror of
https://github.com/love2d/love.git
synced 2026-08-16 08:11:02 +02:00
Alex Szpakowski
136 lines
2.9 KiB
C++
136 lines
2.9 KiB
C++
/**
|
|
* Copyright (c) 2006-2021 LOVE Development Team
|
|
*
|
|
* This software is provided 'as-is', without any express or implied
|
|
* warranty. In no event will the authors be held liable for any damages
|
|
* arising from the use of this software.
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
*
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software. If you use this software
|
|
* in a product, an acknowledgment in the product documentation would be
|
|
* appreciated but is not required.
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
**/
|
|
|
|
#ifndef LOVE_FONT_RASTERIZER_H
|
|
#define LOVE_FONT_RASTERIZER_H
|
|
|
|
// LOVE
|
|
#include "common/Object.h"
|
|
#include "common/int.h"
|
|
#include "GlyphData.h"
|
|
|
|
namespace love
|
|
{
|
|
namespace font
|
|
{
|
|
|
|
/**
|
|
* Holds the specific font metrics.
|
|
**/
|
|
struct FontMetrics
|
|
{
|
|
int advance;
|
|
int ascent;
|
|
int descent;
|
|
int height;
|
|
};
|
|
|
|
/**
|
|
* Holds data for a font object.
|
|
**/
|
|
class Rasterizer : public Object
|
|
{
|
|
public:
|
|
|
|
enum DataType
|
|
{
|
|
DATA_TRUETYPE,
|
|
DATA_IMAGE,
|
|
};
|
|
|
|
static love::Type type;
|
|
|
|
virtual ~Rasterizer();
|
|
|
|
/**
|
|
* Gets the max height of the glyphs.
|
|
**/
|
|
virtual int getHeight() const;
|
|
|
|
/**
|
|
* Gets the max advance of the glyphs.
|
|
**/
|
|
virtual int getAdvance() const;
|
|
|
|
/**
|
|
* Gets the max ascent (height above baseline) for the font.
|
|
**/
|
|
virtual int getAscent() const;
|
|
|
|
/**
|
|
* Gets the max descent (height below baseline) for the font.
|
|
**/
|
|
virtual int getDescent() const;
|
|
|
|
/**
|
|
* Gets the line height of the font.
|
|
**/
|
|
virtual int getLineHeight() const = 0;
|
|
|
|
/**
|
|
* Gets a specific glyph.
|
|
* @param glyph The (UNICODE) glyph codepoint to get data for.
|
|
**/
|
|
virtual GlyphData *getGlyphData(uint32 glyph) const = 0;
|
|
|
|
/**
|
|
* Gets a specific glyph.
|
|
* @param text The (UNICODE) glyph character to get the data for.
|
|
**/
|
|
virtual GlyphData *getGlyphData(const std::string &text) const;
|
|
|
|
/**
|
|
* Gets the number of glyphs the rasterizer has data for.
|
|
**/
|
|
virtual int getGlyphCount() const = 0;
|
|
|
|
/**
|
|
* Gets whether this Rasterizer has a specific glyph.
|
|
* @param glyph The (UNICODE) glyph codepoint.
|
|
**/
|
|
virtual bool hasGlyph(uint32 glyph) const = 0;
|
|
|
|
/**
|
|
* Gets whether this Rasterizer has all the glyphs in a string.
|
|
* @param text The (UTF-8) string.
|
|
**/
|
|
virtual bool hasGlyphs(const std::string &text) const;
|
|
|
|
/**
|
|
* Gets the amount of horizontal kerning between two glyphs.
|
|
**/
|
|
virtual float getKerning(uint32 leftglyph, uint32 rightglyph) const;
|
|
|
|
virtual DataType getDataType() const = 0;
|
|
|
|
float getDPIScale() const;
|
|
|
|
protected:
|
|
|
|
FontMetrics metrics;
|
|
float dpiScale;
|
|
|
|
}; // Rasterizer
|
|
|
|
} // font
|
|
} // love
|
|
|
|
#endif // LOVE_FONT_RASTERIZER_H
|