114 lines
1.7 KiB
C++
114 lines
1.7 KiB
C++
#include <iostream>
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#include <memory>
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#include <thread>
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#include "DMM_HID.h"
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#include "common.h"
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using std::cout;
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using std::endl;
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using std::string;
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using std::vector;
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bool open_dmm(DMM_HID& dmm)
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{
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vector<string> devs = DMM_HID::get_dmm_devices();
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vector<Reading> readings;
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if (0 == devs.size())
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{
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cout << "DMM not found" << endl;
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return false;
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}
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if (devs.size() > 1)
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{
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cout << "Multiple DMMs found" << endl;
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cout << "Using: " << devs[0] << endl;
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}
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dmm.Open(devs[0]);
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// Wait a sec
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std::this_thread::sleep_for(std::chrono::seconds(1));
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// DMM is open. Now check its config
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readings = dmm.get_readings(1);
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if (readings.empty())
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{
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cout << "DMM communication is not ON - Press and hold USB/REL key" << endl;
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}
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return true;
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}
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int main(int argc, char **argv)
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{
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bool ok;
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bool quit = false;
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DMM_HID dmm;
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vector<Reading> readings;
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Uint32 next_draw = 0;
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Uint32 ms;
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SDL_Window *window;
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SDL_Surface *surface;
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TTF_Font *font;
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string text;
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// Keep compiler happy
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(void)argc;
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(void)argv;
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ok = open_dmm(dmm);
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if (!ok)
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{
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return -1;
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}
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ok = init_sdl(&window);
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if (!ok)
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{
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return -1;
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}
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font = TTF_OpenFont("./font.ttf", FONT_SIZE);
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while (!quit)
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{
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ms = SDL_GetTicks();
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if (next_draw - ms > 1000 / UI_FPS)
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{
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surface = SDL_GetWindowSurface(window);
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// Fill the surface white
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SDL_FillRect(surface, NULL, SDL_MapRGB(surface->format, 255, 255, 255));
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// Get Readings
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readings = dmm.get_readings();
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// Calculate Text
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calc_text(text, readings);
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// TODO: Draw Text
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draw_text(text, surface, font);
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next_draw = ms + 1000 / UI_FPS;
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// Update the window
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SDL_UpdateWindowSurface(window);
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quit = check_quit();
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}
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}
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TTF_CloseFont(font);
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quit_sdl(window);
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return 0;
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}
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