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vcmi/client/render/IImage.h
2023-02-01 16:12:01 +02:00

89 lines
2.3 KiB
C++

/*
* CAnimation.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 "../../lib/GameConstants.h"
#ifdef IN
#undef IN
#endif
#ifdef OUT
#undef OUT
#endif
VCMI_LIB_NAMESPACE_BEGIN
class JsonNode;
class Rect;
class Point;
VCMI_LIB_NAMESPACE_END
struct SDL_Surface;
struct SDL_Color;
class CDefFile;
class ColorFilter;
/*
* Base class for images, can be used for non-animation pictures as well
*/
class IImage
{
public:
using SpecialPalette = std::array<SDL_Color, 7>;
//draws image on surface "where" at position
virtual void draw(SDL_Surface * where, int posX = 0, int posY = 0, const Rect * src = nullptr) const = 0;
virtual void draw(SDL_Surface * where, const Rect * dest, const Rect * src) const = 0;
virtual std::shared_ptr<IImage> scaleFast(const Point & size) const = 0;
virtual void exportBitmap(const boost::filesystem::path & path) const = 0;
//Change palette to specific player
virtual void playerColored(PlayerColor player)=0;
//set special color for flag
virtual void setFlagColor(PlayerColor player)=0;
//test transparency of specific pixel
virtual bool isTransparent(const Point & coords) const = 0;
virtual Point dimensions() const = 0;
int width() const;
int height() const;
//only indexed bitmaps, 16 colors maximum
virtual void shiftPalette(int from, int howMany) = 0;
virtual void adjustPalette(const ColorFilter & shifter, size_t colorsToSkip) = 0;
virtual void resetPalette(int colorID) = 0;
virtual void resetPalette() = 0;
virtual void setAlpha(uint8_t value) = 0;
//only indexed bitmaps with 7 special colors
virtual void setSpecialPallete(const SpecialPalette & SpecialPalette) = 0;
virtual void horizontalFlip() = 0;
virtual void verticalFlip() = 0;
IImage();
virtual ~IImage();
/// loads image from specified file. Returns 0-sized images on failure
static std::shared_ptr<IImage> createFromFile( const std::string & path );
/// temporary compatibility method. Creates IImage from existing SDL_Surface
/// Surface will be shared, called must still free it with SDL_FreeSurface
static std::shared_ptr<IImage> createFromSurface( SDL_Surface * source );
};