initial commit

* combine all source files into this monorepo

* convert all third-party source packages into submodules

* small fixes due to changes in latest third-part packages

1 files changed, 148 insertions, 0 deletions

diff --git a/gui/source/main.cpp b/gui/source/main.cpp
new file mode 100644
index 0000000..83f40bd
--- /dev/null
+++ b/gui/source/main.cpp
@@ -0,0 +1,148 @@
+/**
+ * @file main.cpp
+ * @brief Program entry point and main loop.
+ *
+ * Copyright (C) 2022 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_sdl2.h"
+#include "backends/imgui_impl_opengl2.h"
+
+#include "gui_help.hpp"
+#include "logview.h"
+#include "main.hpp"
+#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();
+
+static LogView logView;
+static ImFont *fontSans = nullptr;
+static ImFont *fontMono = nullptr;
+
+template<bool first = false>
+static void renderWindow();
+
+int main(int, char **)
+{
+    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();
+	helpRenderMenu();
+
+        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();
+    helpRenderDialog();
+    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();
+}
+