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touchgfx/framework/include/touchgfx/transforms/DisplayTransformation.hpp
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/**
******************************************************************************
* This file is part of the TouchGFX 4.10.0 distribution.
*
* <h2><center>© Copyright (c) 2018 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
*/
#ifndef DISPLAYTRANSFORMATION_HPP
#define DISPLAYTRANSFORMATION_HPP
#include <touchgfx/hal/Types.hpp>
namespace touchgfx
{
/**
* @class DisplayTransformation DisplayTransformation.hpp touchgfx/transforms/DisplayTransformation.hpp
*
* @brief Defines transformations from display space to frame buffer space.
*
* Defines transformations from display space to frame buffer space. The display might
* be (considered) in portrait mode from 0,0 to 272,480, while the actual frame buffer
* is from 0,0 to 480,272. This class handles the transformations.
*/
class DisplayTransformation
{
public:
/**
* @fn static void DisplayTransformation::transformDisplayToFrameBuffer(int16_t& x, int16_t& y);
*
* @brief Transform x,y from display to frame buffer coordinates.
*
* Transform x,y from display to frame buffer coordinates.
*
* @param [in,out] x the x part to translate.
* @param [in,out] y the y part to translate.
*/
static void transformDisplayToFrameBuffer(int16_t& x, int16_t& y);
/**
* @fn static void DisplayTransformation::transformDisplayToFrameBuffer(float& x, float& y);
*
* @brief Transform x,y from display to frame buffer coordinates.
*
* Transform x,y from display to frame buffer coordinates.
*
* @param [in,out] x the x part to translate.
* @param [in,out] y the y part to translate.
*/
static void transformDisplayToFrameBuffer(float& x, float& y);
/**
* @fn static void DisplayTransformation::transformFrameBufferToDisplay(int16_t& x, int16_t& y);
*
* @brief Transform x,y from frame buffer to display coordinates.
*
* Transform x,y from frame buffer to display coordinates.
*
* @param [in,out] x the x part to translate.
* @param [in,out] y the y part to translate.
*/
static void transformFrameBufferToDisplay(int16_t& x, int16_t& y);
/**
* @fn static void DisplayTransformation::transformDisplayToFrameBuffer(int16_t& x, int16_t& y, const Rect& in);
*
* @brief Transform x,y from coordinates relative to the in rect to frame buffer coordinates.
*
* Transform x,y from coordinates relative to the in rect to frame buffer
* coordinates.
*
* @param [in,out] x the x part to translate.
* @param [in,out] y the y part to translate.
* @param in the rectangle defining the coordinate space.
*/
static void transformDisplayToFrameBuffer(int16_t& x, int16_t& y, const Rect& in);
/**
* @fn static void DisplayTransformation::transformDisplayToFrameBuffer(float& x, float& y, const Rect& in);
*
* @brief Transform x,y from coordinates relative to the in rect to frame buffer coordinates.
*
* Transform x,y from coordinates relative to the in rect to frame buffer
* coordinates.
*
* @param [in,out] x the x part to translate.
* @param [in,out] y the y part to translate.
* @param in the rectangle defining the coordinate space.
*/
static void transformDisplayToFrameBuffer(float& x, float& y, const Rect& in);
/**
* @fn static void DisplayTransformation::transformDisplayToFrameBuffer(Rect& r);
*
* @brief Transform rectangle from display to frame buffer coordinates.
*
* Transform rectangle from display to frame buffer coordinates.
*
* @param [in,out] r the rectangle to translate.
*/
static void transformDisplayToFrameBuffer(Rect& r);
/**
* @fn static void DisplayTransformation::transformDisplayToFrameBuffer(Rect& r, const Rect& in);
*
* @brief Transform rectangle r from coordinates relative to the in rect to frame buffer
* coordinates.
*
* Transform rectangle r from coordinates relative to the in rect to frame buffer
* coordinates.
*
* @param [in,out] r the rectangle to translate.
* @param in the rectangle defining the coordinate space.
*/
static void transformDisplayToFrameBuffer(Rect& r, const Rect& in);
};
} // namespace touchgfx
#endif // DISPLAYTRANSFORMATION_HPP