718 lines
24 KiB
C++
718 lines
24 KiB
C++
/**
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* \file screen.hpp
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* \ingroup cpp-screen
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*
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* Brain screen display and touch functions.
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*
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* Contains user calls to the v5 screen for touching and displaying graphics.
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*
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* \copyright (c) 2017-2023, Purdue University ACM SIGBots.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* \defgroup cpp-screen Simplified Brain Screen C++ API
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*/
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#ifndef _PROS_SCREEN_HPP_
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#define _PROS_SCREEN_HPP_
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#include "pros/screen.h"
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#include "pros/colors.hpp"
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#include <cstdint>
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#include <string>
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namespace pros {
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namespace screen {
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-function"
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namespace {
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template <typename T>
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T convert_args(T arg) {
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return arg;
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}
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const char* convert_args(const std::string& arg) {
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return arg.c_str();
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}
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} // namespace
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#pragma GCC diagnostic pop
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/**
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* \ingroup cpp-screen
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*/
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/**
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* \addtogroup cpp-screen
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* @{
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*/
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/******************************************************************************/
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/** Screen Graphical Display Functions **/
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/** **/
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/** These functions allow programmers to display shapes on the v5 screen **/
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/******************************************************************************/
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/**
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* Set the pen color for subsequent graphics operations
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param color The pen color to set (it is recommended to use values
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* from the enum defined in colors.hpp)
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*
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* \return Returns 1 if the mutex was successfully returned, or PROS_ERR if
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* there was an error either taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void initialize() {
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* pros::screen::set_pen(red);
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* }
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*
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* void opcontrol() {
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* int iter = 0;
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* while(1){
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* // This should print in red.
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* pros::screen::print(TEXT_MEDIUM, 1, "%d", iter++);
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* }
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* }
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*
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* \endcode
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*/
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std::uint32_t set_pen(pros::Color color);
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/**
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* Set the pen color for subsequent graphics operations
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param color The pen color to set (in hex form)
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*
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* \return Returns 1 if the mutex was successfully returned, or PROS_ERR if
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* there was an error either taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void initialize() {
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* //set pen color to red
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* pros::screen::set_pen(0x00FF0000);
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* }
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*
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* void opcontrol() {
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* int iter = 0;
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* while(1){
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* // This should print in red.
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* pros::screen::print(TEXT_MEDIUM, 1, "%d", iter++);
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* }
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* }
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*
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* \endcode
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*/
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std::uint32_t set_pen(std::uint32_t color);
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/**
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* Set the eraser color for erasing and the current background.
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param color The background color to set (it is recommended to use values
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* from the enum defined in colors.hpp)
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*
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* \return Returns 1 if the mutex was successfully returned, or PROS_ERR
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* if there was an error either taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void initialize() {
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* //set eraser color to red
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* set_eraser(red);
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* }
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*
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* void opcontrol() {
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* int iter = 0;
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* while(1){
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* // This should print in red.
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* pros::screen::print(TEXT_MEDIUM, 1, "%d", iter++);
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* }
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* }
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*
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* \endcode
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*/
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std::uint32_t set_eraser(pros::Color color);
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/**
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* Set the eraser color for erasing and the current background.
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param color The background color to set to set (in hex form)
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*
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* \return Returns 1 if the mutex was successfully returned, or PROS_ERR
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* if there was an error either taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void initialize() {
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* //set eraser color to red
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* pros::screen::set_eraser(0x00FF0000);
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* }
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*
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* void opcontrol() {
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* while(1){
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* // This should turn the screen red.
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* pros::screen::erase();
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* }
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* }
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* \endcode
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*/
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std::uint32_t set_eraser(std::uint32_t color);
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/**
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* Get the current pen color.
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \return The current pen color in the form of a value from the enum
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* defined in colors.h, or PROS_ERR if there was an error taking or
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* returning the screen mutex.
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*
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* \b Example
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* \code
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* void initialize() {
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* pros::screen::set_pen(red);
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* }
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*
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* void opcontrol() {
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* while(1){
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* // Should print number equivalent to red defined in colors.hpp.
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* pros::screen::print(TEXT_MEDIUM, 1, "%d", get_pen());
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* }
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* }
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* \endcode
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*/
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std::uint32_t get_pen();
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/**
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* Get the current eraser color.
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \return The current eraser color in the form of a value from the enum
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* defined in colors.h, or PROS_ERR if there was an error taking or
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* returning the screen mutex.
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*
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* \b Example
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* \code
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* void initialize() {
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* pros::screen::set_eraser(red);
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* }
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*
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* void opcontrol() {
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* while(1){
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* // Should print number equivalent to red defined in colors.h.
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* pros::screen::print(TEXT_MEDIUM, 1, "%d", get_eraser());
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* }
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* }
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* \endcode
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*/
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std::uint32_t get_eraser();
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/**
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* Clear display with eraser color
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* * \b Example
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* \code
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* void initialize() {
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* pros::screen::set_eraser(red);
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* }
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*
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* void opcontrol() {
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* while(1){
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* // This should turn the screen red.
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* pros::screen::erase();
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* }
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* }
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* \endcode
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*/
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std::uint32_t erase();
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/**
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* Scroll lines on the display upwards.
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param start_line The line from which scrolling will start
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* \param lines The number of lines to scroll up
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* pros::screen::print(TEXT_MEDIUM, 4, "Line Here");
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* // Scroll 3 lines
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* pros::screen::scroll(4, 3);
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* }
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* \endcode
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*/
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std::uint32_t scroll(const std::int16_t start_line, const std::int16_t lines);
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/**
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* Scroll lines within a region on the display
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*
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* This function behaves in the same way as `screen_scroll`, except that you
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* specify a rectangular region within which to scroll lines instead of a start
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* line.
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x0, y0 The (x,y) coordinates of the first corner of the
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* rectangular region
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* \param x1, y1 The (x,y) coordinates of the second corner of the
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* rectangular region
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* \param lines The number of lines to scroll upwards
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* pros::screen::print(TEXT_MEDIUM, 1, "Line Here");
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* // Scrolls area of screen upwards slightly. including line of text
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* pros::screen::scroll_area(0,0, 400, 200, 3);
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* }
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* \endcode
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*/
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std::uint32_t scroll_area(const std::int16_t x0, const std::int16_t y0, const std::int16_t x1, const std::int16_t y1, std::int16_t lines);
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/**
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* Copy a screen region (designated by a rectangle) from an off-screen buffer
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* to the screen
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x0, y0 The (x,y) coordinates of the first corner of the
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* rectangular region of the screen
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* \param x1, y1 The (x,y) coordinates of the second corner of the
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* rectangular region of the screen
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* \param buf Off-screen buffer containing screen data
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* \param stride Off-screen buffer width in pixels, such that image size
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* is stride-padding
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured taking
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* or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* uint32_t* buf = malloc(sizeof(uint32_t) * 400 * 200);
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* pros::screen::print(TEXT_MEDIUM, 1, "Line Here");
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* // Copies area of the screen including text
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* pros::screen::copy_area(0, 0, 400, 200, (uint32_t*)buf, 400 + 1);
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* // Equation for stride is x2 - x1 + 1
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* }
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* \endcode
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*/
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std::uint32_t copy_area(const std::int16_t x0, const std::int16_t y0, const std::int16_t x1, const std::int16_t y1, uint32_t* buf, const std::int32_t stride);
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/**
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* Draw a single pixel on the screen using the current pen color
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x, y The (x,y) coordinates of the pixel
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* int i = 0;
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* void opcontrol() {
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* while(i < 200){
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* pros::screen::draw_pixel(100,i++);
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* // Draws a line at x = 100 gradually down the screen, pixel by pixel
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* pros::delay(200);
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* }
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* }
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* \endcode
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*/
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std::uint32_t draw_pixel(const std::int16_t x, const std::int16_t y);
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/**
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* Erase a pixel from the screen (Sets the location)
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x, y The (x,y) coordinates of the erased
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* // Color the Screen in Red
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* pros::screen::set_pen(red);
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* pros::screen::fill_rect(0,0,400,200);
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* int i = 0;
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* while(i < 200){
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* pros::screen::erase_pixel(100,i++);
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* // Erases a line at x = 100 gradually down the screen, pixel by pixel
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* pros::delay(200);
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* }
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* }
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* \endcode
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*/
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std::uint32_t erase_pixel(const std::int16_t x, const std::int16_t y);
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/**
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* Draw a line on the screen using the current pen color
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x0, y0 The (x, y) coordinates of the first point of the line
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* \param x1, y1 The (x, y) coordinates of the second point of the line
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* pros::screen::set_pen(red);
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* // Draw line down the screen at x = 100
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* pros::screen::draw_line(100,0,100,200);
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* }
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* \endcode
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*/
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std::uint32_t draw_line(const std::int16_t x0, const std::int16_t y0, const std::int16_t x1, const std::int16_t y1);
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/**
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* Erase a line on the screen using the current eraser color
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x0, y0 The (x, y) coordinates of the first point of the line
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* \param x1, y1 The (x, y) coordinates of the second point of the line
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* // Color the Screen in Red
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* pros::screen::set_pen(red);
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* pros::screen::fill_rect(0,0,400,200);
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* // Erase line down the screen at x = 100
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* pros::screen::erase_line(100,0,100,200);
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* }
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* \endcode
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*/
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std::uint32_t erase_line(const std::int16_t x0, const std::int16_t y0, const std::int16_t x1, const std::int16_t y1);
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/**
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* Draw a rectangle on the screen using the current pen color
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x0, y0 The (x,y) coordinates of the first point of the rectangle
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* \param x1, y1 The (x,y) coordinates of the second point of the rectangle
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* pros::screen::set_pen(red);
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* pros::screen::draw_rect(1,1,480,200);
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* }
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* \endcode
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*/
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std::uint32_t draw_rect(const std::int16_t x0, const std::int16_t y0, const std::int16_t x1, const std::int16_t y1);
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/**
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* Erase a rectangle on the screen using the current eraser color
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x0, y0 The (x,y) coordinates of the first point of the rectangle
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* \param x1, y1 The (x,y) coordinates of the second point of the rectangle
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* // Draw Box Around Half the Screen in Red
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* pros::screen::set_eraser(red);
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* pros::screen::erase_rect(5,5,240,200);
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* }
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* \endcode
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*/
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std::uint32_t erase_rect(const std::int16_t x0, const std::int16_t y0, const std::int16_t x1, const std::int16_t y1);
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/**
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* Fill a rectangular region of the screen using the current pen
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* color
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*
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* This function uses the following values of errno when an error state is
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* reached:
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* EACCESS - Another resource is currently trying to access the screen mutex.
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*
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* \param x0, y0 The (x,y) coordinates of the first point of the rectangle
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* \param x1, y1 The (x,y) coordinates of the second point of the rectangle
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*
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* \return 1 if there were no errors, or PROS_ERR if an error occured
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* taking or returning the screen mutex.
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*
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* \b Example
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* \code
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* void opcontrol() {
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* // Fill Around Half the Screen in Red
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* pros::screen::set_pen(red);
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* pros::screen::fill_rect(5,5,240,200);
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* }
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* \endcode
|
|
*/
|
|
std::uint32_t fill_rect(const std::int16_t x0, const std::int16_t y0, const std::int16_t x1, const std::int16_t y1);
|
|
|
|
/**
|
|
* Draw a circle on the screen using the current pen color
|
|
*
|
|
* This function uses the following values of errno when an error state is
|
|
* reached:
|
|
* EACCESS - Another resource is currently trying to access the screen mutex.
|
|
*
|
|
* \param x, y The (x,y) coordinates of the center of the circle
|
|
* \param r The radius of the circle
|
|
*
|
|
* \return 1 if there were no errors, or PROS_ERR if an error occured
|
|
* taking or returning the screen mutex.
|
|
*
|
|
* \b Example
|
|
* \code
|
|
* void opcontrol() {
|
|
* // Draw a circle with radius of 100 in red
|
|
* pros::screen::set_pen(red);
|
|
* pros::screen::draw_circle(240, 200, 100);
|
|
* }
|
|
* \endcode
|
|
*/
|
|
std::uint32_t draw_circle(const std::int16_t x, const std::int16_t y, const std::int16_t radius);
|
|
|
|
/**
|
|
* Erase a circle on the screen using the current eraser color
|
|
*
|
|
* This function uses the following values of errno when an error state is
|
|
* reached:
|
|
* EACCESS - Another resource is currently trying to access the screen mutex.
|
|
*
|
|
* \param x, y The (x,y) coordinates of the center of the circle
|
|
* \param r The radius of the circle
|
|
*
|
|
* \return 1 if there were no errors, or PROS_ERR if an error occured
|
|
* taking or returning the screen mutex.
|
|
*
|
|
* \b Example
|
|
* \code
|
|
* void opcontrol() {
|
|
* pros::screen::set_pen(red);
|
|
* pros::screen::fill_rect(5,5,240,200);
|
|
* // Erase a circle with radius of 100 in blue
|
|
* pros::screen::set_pen(blue);
|
|
* pros::screen::erase_circle(240, 200, 100);
|
|
* }
|
|
* \endcode
|
|
*/
|
|
std::uint32_t erase_circle(const std::int16_t x, const std::int16_t y, const std::int16_t radius);
|
|
|
|
/**
|
|
* Fill a circular region of the screen using the current pen
|
|
* color
|
|
*
|
|
* This function uses the following values of errno when an error state is
|
|
* reached:
|
|
* EACCESS - Another resource is currently trying to access the screen mutex.
|
|
*
|
|
* \param x, y The (x,y) coordinates of the center of the circle
|
|
* \param r The radius of the circle
|
|
*
|
|
* \return 1 if there were no errors, or PROS_ERR if an error occured
|
|
* taking or returning the screen mutex.
|
|
*
|
|
* \b Example
|
|
* \code
|
|
* void opcontrol() {
|
|
* pros::screen::set_pen(red);
|
|
* pros::screen::fill_rect(5,5,240,200);
|
|
* // Fill a circlular area with radius of 100 in blue
|
|
* pros::screen::set_pen(blue);
|
|
* pros::screen::fill_circle(240, 200, 100);
|
|
* }
|
|
* \endcode
|
|
*/
|
|
std::uint32_t fill_circle(const std::int16_t x, const std::int16_t y, const std::int16_t radius);
|
|
|
|
/******************************************************************************/
|
|
/** Screen Text Display Functions **/
|
|
/** **/
|
|
/** These functions allow programmers to display text on the v5 screen **/
|
|
/******************************************************************************/
|
|
|
|
/**
|
|
* Print a formatted string to the screen, overwrite available for printing at location too.
|
|
*
|
|
* Will default to a medium sized font by default if invalid txt_fmt is given.
|
|
*
|
|
* \param txt_fmt Text format enum that determines if the text is medium, large, medium_center, or large_center. (DOES NOT SUPPORT SMALL)
|
|
* \param line The line number on which to print
|
|
* \param x The (x,y) coordinates of the top left corner of the string
|
|
* \param y The (x,y) coordinates of the top left corner of the string
|
|
* \param fmt Format string
|
|
* \param ... Optional list of arguments for the format string
|
|
*
|
|
* \b Example
|
|
* \code
|
|
* void opcontrol() {
|
|
* int i = 0;
|
|
* pros::screen::set_pen(blue);
|
|
* while(1){
|
|
* // Will print seconds started since program started on line 3
|
|
* pros::screen::print(pros::TEXT_MEDIUM, 3, "Seconds Passed: %3d", i++);
|
|
* pros::delay(1000);
|
|
* }
|
|
* }
|
|
*/
|
|
template <typename... Params>
|
|
void print(pros::text_format_e_t txt_fmt, const std::int16_t line, const char* text, Params... args){
|
|
pros::c::screen_print(txt_fmt, line, text, convert_args(args)...);
|
|
}
|
|
|
|
template <typename... Params>
|
|
void print(pros::text_format_e_t txt_fmt, const std::int16_t x, const std::int16_t y, const char* text, Params... args){
|
|
pros::c::screen_print_at(txt_fmt, x, y, text, convert_args(args)...);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/** Screen Touch Functions **/
|
|
/** **/
|
|
/** These functions allow programmers to access **/
|
|
/** information about screen touches **/
|
|
/******************************************************************************/
|
|
|
|
/**
|
|
* Gets the touch status of the last touch of the screen.
|
|
*
|
|
* \return The last_touch_e_t enum specifier that indicates the last touch status of the screen (E_TOUCH_EVENT_RELEASE, E_TOUCH_EVENT_PRESS, or E_TOUCH_EVENT_PRESS_AND_HOLD).
|
|
* This will be released by default if no action was taken.
|
|
* If an error occured, the screen_touch_status_s_t will have its
|
|
* last_touch_e_t enum specifier set to E_TOUCH_ERR, and other values set to -1.
|
|
*
|
|
* \b Example
|
|
* \code
|
|
* void opcontrol() {
|
|
* int i = 0;
|
|
* pros::screen_touch_status_s_t status;
|
|
* while(1){
|
|
* status = pros::touch_status();
|
|
*
|
|
* // Will print various information about the last touch
|
|
* pros::screen::print(TEXT_MEDIUM, 1, "Touch Status (Type): %d", status.touch_status);
|
|
* pros::screen::print(TEXT_MEDIUM, 2, "Last X: %d", status.x);
|
|
* pros::screen::print(TEXT_MEDIUM, 3, "Last Y: %d", status.y);
|
|
* pros::screen::print(TEXT_MEDIUM, 4, "Press Count: %d", status.press_count);
|
|
* pros::screen::print(TEXT_MEDIUM, 5, "Release Count: %d", status.release_count);
|
|
* pros::delay(20);
|
|
* }
|
|
* }
|
|
* \endcode
|
|
*/
|
|
screen_touch_status_s_t touch_status();
|
|
|
|
/**
|
|
* Assigns a callback function to be called when a certain touch event happens.
|
|
*
|
|
* This function uses the following values of errno when an error state is
|
|
* reached:
|
|
* EACCESS - Another resource is currently trying to access the screen mutex.
|
|
*
|
|
* \param cb Function pointer to callback when event type happens
|
|
* \param event_type Touch event that will trigger the callback.
|
|
*
|
|
* \return 1 if there were no errors, or PROS_ERR if an error occured
|
|
* while taking or returning the screen mutex.
|
|
*
|
|
* \b Example
|
|
* \code
|
|
* touch_event_cb_fn_t changePixel(){
|
|
* pros::screen_touch_status_s_t status = pros::screen::touch_status();
|
|
* pros::screen::draw_pixel(status.x,status.y);
|
|
* return NULL;
|
|
* }
|
|
*
|
|
* void opcontrol() {
|
|
* pros::screen::touch_callback(changePixel(), TOUCH_PRESSED);
|
|
* while(1) {
|
|
* pros::delay(20);
|
|
* }
|
|
* }
|
|
* \endcode
|
|
*/
|
|
std::uint32_t touch_callback(touch_event_cb_fn_t cb, last_touch_e_t event_type);
|
|
|
|
} // namespace screen
|
|
|
|
|
|
} // namespace pros
|
|
|
|
extern __attribute__((weak)) void lvgl_init() {}
|
|
///@}
|
|
#endif //header guard
|