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114 lines
3.6 KiB
C++
114 lines
3.6 KiB
C++
#include "application.h"
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#include "output_util.h"
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#include "filepath_util.h"
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#include <cstring>
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#include <cctype>
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/////////////////////////////////////////////////////////////////////////
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static constexpr int DEFAULT_SCREEN_WIDTH = 1280;
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static constexpr int DEFAULT_SCREEN_HEIGHT = 720;
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static constexpr int DEFAULT_SPLITTING = 4;
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static const std::string DEFAULT_PATH = "."; // current folder, I guess
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/////////////////////////////////////////////////////////////////////////
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std::tuple<int, int, sf::Vector2i, std::string> error(const char* msg)
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{
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std::cout << msg;
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return {EXIT_FAILURE, -1, {}, {}};
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}
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std::tuple<int, int, sf::Vector2i, std::string> parseInput(int argc, char **argv)
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{
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int splitting = DEFAULT_SPLITTING;
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sf::Vector2i resolution(DEFAULT_SCREEN_WIDTH, DEFAULT_SCREEN_HEIGHT);
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std::string path = DEFAULT_PATH;
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for (int current_arg = 1; current_arg < argc; ++current_arg) // current_arg = 0 is executable name
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{
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if (strcmp(argv[current_arg], output::HELP_FLAG) == 0) // --help
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return error(output::HELP_MSG);
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if (strcmp(argv[current_arg], output::SPLITTING_FLAG) == 0) // -s num
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{
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const int value_rg = current_arg + 1;
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if (value_rg == argc) // is '-s' is the last argument
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return error(output::SPLITTING_MSG);
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splitting = -1; // here assuming user is providing it on their own
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if (std::isdigit(*argv[value_rg]))
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splitting = std::stoi(argv[value_rg]);
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if (splitting < 2)
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return error(output::SPLITTING_MSG);
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++current_arg; // skipping value after flag to not check it once again
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continue;
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}
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if (strcmp(argv[current_arg], output::RESOLUTION_FLAG) == 0) // -r numxnum
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{
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const int value_rg = current_arg + 1;
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if (value_rg == argc) // is '-s' is the last argument
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return error(output::RESOLUTION_MSG);
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std::vector<std::string> res = filepath::split(argv[value_rg], 'x'); // splitting argument by 'x' as in 600x900
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if (res.size() < 2)
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return error(output::RESOLUTION_MSG);
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resolution = {-1, -1};
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if (std::isdigit(*res[0].c_str()) && std::isdigit(*res[1].c_str()))
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resolution = {std::stoi(res[0].c_str()), std::stoi(res[1].c_str())};
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if (resolution.x < 1 || resolution.y < 1)
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return error(output::RESOLUTION_MSG);
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++current_arg; // skipping value after flag to not check it once again
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continue;
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}
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// nothing else, then assuming it's filepath or folderpath
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const auto &[ret_code, ret_path] = filepath::parsePath(argv[current_arg]);
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if (ret_code)
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return error(output::IMG_FAIL_MSG);
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path = ret_path;
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}
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if (path == DEFAULT_PATH)
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{
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// no path was give, loading random image from '.'
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const auto &[ret_code, ret_path] = filepath::parsePath(path);
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if (ret_code)
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return error(output::IMG_FAIL_MSG);
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path = ret_path;
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}
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return {EXIT_SUCCESS, splitting, resolution, path};
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}
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/////////////////////////////////////////////////////////////////////////
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int main(int argc, char **argv)
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{
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const auto&[ret_code, splitting, resolution, path] = parseInput(argc, argv);
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if (ret_code) // Error code is EXIT_FAILURE
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return ret_code;
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Application app(resolution.x, resolution.y);
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if (app.init(path, splitting))
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{
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app.run();
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return EXIT_SUCCESS;
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}
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return EXIT_FAILURE;
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}
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