src/gui.cpp

   1 #include <vector>
   2 #include <iostream>
   3 #include <assert.h>
   4 #include <imgui.h>
   5 #include "gui.h"
   6 #include "project.h"
   7
   8
   9 void Gui::render() {
  10         if (imgui_demo_open) ImGui::ShowTestWindow(&imgui_demo_open);
  11         if (project_overlay_open) this->render_project_overlay();
  12         this->render_menubar();
  13 }
  14
  15 void Gui::render_menubar() {
  16         if (ImGui::BeginMainMenuBar()) {
  17                 if (ImGui::BeginMenu("File"))
  18                         render_mmb_file();
  19
  20                 if (ImGui::BeginMenu("View"))
  21                         render_mmb_view();
  22
  23                 if (ImGui::BeginMenu("Debug"))
  24                         render_mmb_debug();
  25
  26                 ImGui::EndMainMenuBar();
  27         }
  28 }
  29
  30 void Gui::render_project_overlay() {
  31         ImGui::SetNextWindowPos(ImVec2(20, 30));
  32     if (ImGui::Begin("", &this->project_overlay_open, ImVec2(200,0), 0.3f, ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoSavedSettings)) {
  33         ImGui::Text("[project]");
  34         ImGui::Separator();
  35         if (state->current_project != nullptr) {
  36                 ImGui::Text("name: %s", state->current_project->name.c_str());
  37                 ImGui::Text("n_scenes: %i", state->current_project->scenes.size());
  38                 if (!state->current_project->scene_loaded) {
  39                         ImGui::Text("no scene loaded");
  40                 } else {
  41                         ImGui::Text("current scene: %s",
  42                                 state->current_project->current_scene->name.c_str());
  43                 }
  44         } else {
  45                 ImGui::Text("no project loaded.");
  46         }
  47         ImGui::End();
  48     }
  49 }
  50
  51 void Gui::render_mmb_file() {
  52         if (ImGui::MenuItem("Load project", "CTRL+O")) {
  53                 /*nfdchar_t *out_path = nullptr;
  54                 nfdresult_t result = NFD_OpenDialog(NULL, NULL, &out_path);
  55                 if (result == NFD_OKAY) {
  56                         // Load project
  57                         auto new_project = Project::fromFile(std::string(out_path));
  58                         state->current_project = std::move(new_project);
  59
  60                         free(out_path);
  61                 } else if (result == NFD_ERROR) {
  62                         std::cout << "Error in filepicker: " << NFD_GetError() << '\n';
  63                 }*/
  64         }
  65
  66         ImGui::Separator();
  67         if (ImGui::MenuItem("Exit", "CTRL+Q"))
  68                 state->running = false;
  69
  70         ImGui::EndMenu();
  71 }
  72
  73 void Gui::render_mmb_view() {
  74         ImGui::MenuItem("Show project meta overlay", NULL, &this->project_overlay_open);
  75
  76         ImGui::Separator();
  77
  78         if (ImGui::MenuItem("Reload ImGui styling"))
  79                 this->load_style(cpptoml::parse_file(state->config->stylepath));
  80
  81         ImGui::MenuItem("Show ImGui demo window", NULL, &this->imgui_demo_open);
  82
  83         ImGui::EndMenu();
  84 }
  85
  86 void Gui::render_mmb_debug() {
  87         ImGui::MenuItem("Profiler");
  88
  89         if (ImGui::MenuItem("Reload shaders", "CTRL+R")) {
  90                 if (state->current_project != nullptr) {
  91                         if (state->current_project->scene_loaded) {
  92                                 std::cout << "=== reloading shaders ===\n";
  93                                 state->current_project->reload_shaders();
  94                         }
  95                 }
  96         }
  97
  98         ImGui::EndMenu();
  99 }
 100
 101
 102 static cpptoml::option<ImVec2> vec2im2(cpptoml::option<std::vector<double>> vec) {
 103         if (vec) {
 104                 assert((*vec).size() == 2);
 105                 return ImVec2((*vec)[0], (*vec)[1]);
 106         } else {
 107                 return cpptoml::option<ImVec2>();
 108         }
 109 }
 110
 111 static cpptoml::option<ImVec4> vec2im4(cpptoml::option<std::vector<double>> vec) {
 112         if (vec) {
 113                 assert((*vec).size() == 4);
 114                 return ImVec4((*vec)[0], (*vec)[1], (*vec)[2], (*vec)[3]);
 115         } else {
 116                 return cpptoml::option<ImVec4>();
 117         }
 118 }
 119
 120 #define st_lds_d(n, k) style.n = conf->get_qualified_as<double>(k).value_or(defaultstyle.n)
 121 #define st_lds_v2(n, k) style.n = vec2im2(conf->get_qualified_array_of<double>(k)).value_or(defaultstyle.n)
 122 #define st_lds_v4(n, k) style.n = vec2im4(conf->get_qualified_array_of<double>(k)).value_or(defaultstyle.n)
 123
 124
 125 void Gui::load_style(std::shared_ptr<cpptoml::table> conf) {
 126         ImGuiStyle &style = ImGui::GetStyle();
 127         auto defaultstyle = ImGuiStyle();
 128
 129         st_lds_d(Alpha, "alpha");
 130         st_lds_v2(WindowPadding, "window.padding");
 131         st_lds_v2(WindowMinSize, "window.min_size");
 132         st_lds_d(WindowRounding, "window.rounding");
 133         st_lds_v2(WindowTitleAlign, "window.title_align");
 134         st_lds_d(ChildWindowRounding, "window.child_rounding");
 135         st_lds_v2(FramePadding, "frame.padding");
 136         st_lds_d(FrameRounding, "frame.rounding");
 137 }