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/*
* CBitmapFont.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "../render/IFont.h"
#include "../../lib/Rect.h"
VCMI_LIB_NAMESPACE_BEGIN
class ResourcePath;
VCMI_LIB_NAMESPACE_END
class CBitmapFont final : public IFont
{
SDL_Surface * atlasImage;
using CodePoint = uint32_t;
struct EntryFNT
{
int32_t leftOffset;
uint32_t width;
uint32_t height;
int32_t rightOffset;
std::vector<uint8_t> pixels;
};
struct BitmapChar
{
Rect positionInAtlas;
int32_t leftOffset;
int32_t rightOffset;
};
std::unordered_map<CodePoint, BitmapChar> chars;
uint32_t height;
uint32_t ascent;
void loadFont(const ResourcePath & resource, std::unordered_map<CodePoint, EntryFNT> & loadedChars);
void renderCharacter(SDL_Surface * surface, const BitmapChar & character, const ColorRGBA & color, int &posX, int &posY) const;
void renderText(SDL_Surface * surface, const std::string & data, const ColorRGBA & color, const Point & pos) const override;
public:
explicit CBitmapFont(const std::string & filename);
~CBitmapFont();
size_t getFontAscentScaled() const override;
size_t getLineHeightScaled() const override;
size_t getGlyphWidthScaled(const char * data) const override;
/// returns true if this font contains provided utf-8 character
bool canRepresentCharacter(const char * data) const override;
bool canRepresentString(const std::string & data) const;
friend class CBitmapHanFont;
friend class CTrueTypeFont;
};
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