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/**
* @file main.cpp
* @brief Program entry point and main loop.
*
* Copyright (C) 2021 Clyne Sullivan
*
* Distributed under the GNU GPL v3 or later. You should have received a copy of
* the GNU General Public License along with this program.
* If not, see <https://www.gnu.org/licenses/>.
*/
#include "imgui.h"
#include "backends/imgui_impl_sdl.h"
#include "backends/imgui_impl_opengl2.h"
#include "logview.h"
#include "stmdsp.hpp"
#include <chrono>
#include <cmath>
#include <iostream>
#include <string>
#include <thread>
void codeEditorInit();
void codeRenderMenu();
void codeRenderToolbar();
void codeRenderWidgets(const ImVec2& size);
void deviceRenderDraw();
void deviceRenderMenu();
void deviceRenderToolbar();
void deviceRenderWidgets();
void fileRenderMenu();
void fileRenderDialog();
void fileInit();
bool guiInitialize();
bool guiHandleEvents();
void guiShutdown();
void guiRender();
void log(const std::string& str);
static LogView logView;
static ImFont *fontSans = nullptr;
static ImFont *fontMono = nullptr;
template<bool first = false>
static void renderWindow();
int main(int argc, char *argv[])
{
if (!guiInitialize())
return -1;
auto& io = ImGui::GetIO();
fontSans = io.Fonts->AddFontFromFileTTF("fonts/Roboto-Regular.ttf", 20);
fontMono = io.Fonts->AddFontFromFileTTF("fonts/RobotoMono-Regular.ttf", 20);
if (fontSans == nullptr || fontMono == nullptr) {
std::cout << "Failed to load fonts!" << std::endl;
return -1;
}
codeEditorInit();
fileInit();
renderWindow<true>();
while (1) {
constexpr std::chrono::duration<double> fpsDelay (1. / 60.);
const auto endTime = std::chrono::steady_clock::now() + fpsDelay;
const bool isDone = guiHandleEvents();
if (!isDone) {
renderWindow();
std::this_thread::sleep_until(endTime);
} else {
break;
}
}
guiShutdown();
return 0;
}
void log(const std::string& str)
{
logView.AddLog(str);
}
template<bool first>
void renderWindow()
{
// Start the new window frame and render the menu bar.
ImGui_ImplOpenGL2_NewFrame();
ImGui_ImplSDL2_NewFrame();
ImGui::NewFrame();
if (ImGui::BeginMainMenuBar()) {
fileRenderMenu();
deviceRenderMenu();
codeRenderMenu();
ImGui::EndMainMenuBar();
}
if constexpr (first) {
ImGui::SetNextWindowSize({550, 440});
}
constexpr int MainTopMargin = 22;
const auto& displaySize = ImGui::GetIO().DisplaySize;
ImGui::SetNextWindowPos({0, MainTopMargin});
ImGui::SetNextWindowSizeConstraints({displaySize.x, 150}, {displaySize.x, displaySize.y - 150});
ImGui::Begin("main", nullptr,
ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoTitleBar |
ImGuiWindowFlags_NoBringToFrontOnFocus);
const float mainWindowHeight = ImGui::GetWindowHeight();
ImGui::PushFont(fontSans);
codeRenderToolbar();
deviceRenderToolbar();
fileRenderDialog();
deviceRenderWidgets();
ImGui::PopFont();
ImGui::PushFont(fontMono);
codeRenderWidgets({displaySize.x - 16, mainWindowHeight - MainTopMargin - 24});
ImGui::PopFont();
ImGui::End();
// The log window is kept separate from "main" to support panel resizing.
ImGui::PushFont(fontMono);
ImGui::SetNextWindowPos({0, mainWindowHeight + MainTopMargin});
ImGui::SetNextWindowSize({displaySize.x, displaySize.y - mainWindowHeight - MainTopMargin});
logView.Draw("log", nullptr, ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoBringToFrontOnFocus);
ImGui::PopFont();
deviceRenderDraw();
// Draw everything to the screen.
guiRender();
}
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