mirror of
https://github.com/TwilitRealm/dusklight
synced 2026-05-24 23:01:23 -04:00
madeline
202 lines
8.4 KiB
C++
202 lines
8.4 KiB
C++
#include "ImGuiEngine.hpp"
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#include <SDL3/SDL_filesystem.h>
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#include <SDL3/SDL_pixels.h>
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#include <SDL3/SDL_surface.h>
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#include <aurora/imgui.h>
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#include <cmath>
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#include <cstring>
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#include <string>
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#include "dusk/logging.h"
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#ifdef IMGUI_ENABLE_FREETYPE
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#include "misc/freetype/imgui_freetype.h"
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#endif
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namespace dusk {
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namespace {
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std::string GetAssetPath(const char* assetName) {
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const char* basePath = SDL_GetBasePath();
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if (basePath != nullptr && basePath[0] != '\0') {
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return std::string(basePath) + "res/" + assetName;
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}
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return std::string("res/") + assetName;
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}
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bool AssetExists(const std::string& path) {
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SDL_PathInfo pathInfo{};
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return SDL_GetPathInfo(path.c_str(), &pathInfo) && pathInfo.type == SDL_PATHTYPE_FILE;
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}
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} // namespace
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ImFont* ImGuiEngine::fontNormal;
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ImFont* ImGuiEngine::fontLarge;
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ImTextureID ImGuiEngine::duskIcon;
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void ImGuiEngine_Initialize(float scale) {
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ImGui::GetCurrentContext();
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ImGuiIO& io = ImGui::GetIO();
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io.Fonts->Clear();
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io.FontGlobalScale = scale > 0.0f ? 1.0f / scale : 1.0f;
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const std::string fontPath = GetAssetPath("NotoMono-Regular.ttf");
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const bool hasFontFile = AssetExists(fontPath);
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ImFontConfig fontConfig{};
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fontConfig.SizePixels = std::floor(15.f * scale);
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snprintf(static_cast<char*>(fontConfig.Name), sizeof(fontConfig.Name),
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"Noto Mono Regular, %dpx", static_cast<int>(fontConfig.SizePixels));
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ImGuiEngine::fontNormal =
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hasFontFile ?
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io.Fonts->AddFontFromFileTTF(fontPath.c_str(), fontConfig.SizePixels, &fontConfig) :
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nullptr;
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if (ImGuiEngine::fontNormal == nullptr) {
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if (hasFontFile) {
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DuskLog.warn("Failed to load font '{}': {}", fontPath, SDL_GetError());
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}
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ImGuiEngine::fontNormal = io.Fonts->AddFontDefault(&fontConfig);
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}
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fontConfig.SizePixels = std::floor(26.f * scale);
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#ifdef IMGUI_ENABLE_FREETYPE
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fontConfig.FontBuilderFlags |= ImGuiFreeTypeBuilderFlags_Bold;
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snprintf(static_cast<char*>(fontConfig.Name), sizeof(fontConfig.Name), "Noto Mono Bold, %dpx",
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static_cast<int>(fontConfig.SizePixels));
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#else
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snprintf(static_cast<char*>(fontConfig.Name), sizeof(fontConfig.Name),
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"Noto Mono Regular, %dpx", static_cast<int>(fontConfig.SizePixels));
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#endif
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ImGuiEngine::fontLarge =
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hasFontFile ?
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io.Fonts->AddFontFromFileTTF(fontPath.c_str(), fontConfig.SizePixels, &fontConfig) :
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nullptr;
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if (ImGuiEngine::fontLarge == nullptr) {
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if (hasFontFile) {
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DuskLog.warn("Failed to load font '{}': {}", fontPath, SDL_GetError());
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}
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ImGuiEngine::fontLarge = io.Fonts->AddFontDefault(&fontConfig);
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}
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auto& style = ImGui::GetStyle();
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style = {}; // Reset sizes
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style.WindowPadding = ImVec2(15, 15);
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style.WindowRounding = 5.0f;
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style.FrameBorderSize = 1.f;
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style.FramePadding = ImVec2(5, 5);
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style.FrameRounding = 4.0f;
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style.ItemSpacing = ImVec2(12, 8);
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style.ItemInnerSpacing = ImVec2(8, 6);
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style.IndentSpacing = 25.0f;
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style.ScrollbarSize = 15.0f;
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style.ScrollbarRounding = 9.0f;
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style.GrabMinSize = 5.0f;
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style.GrabRounding = 3.0f;
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style.PopupBorderSize = 1.f;
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style.PopupRounding = 7.0;
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style.TabBorderSize = 1.f;
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style.TabRounding = 3.f;
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auto* colors = style.Colors;
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colors[ImGuiCol_Text] = ImVec4(0.95f, 0.96f, 0.98f, 1.00f);
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colors[ImGuiCol_TextDisabled] = ImVec4(0.36f, 0.42f, 0.47f, 1.00f);
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colors[ImGuiCol_WindowBg] = ImVec4(0.11f, 0.15f, 0.17f, 1.00f);
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colors[ImGuiCol_ChildBg] = ImVec4(0.15f, 0.18f, 0.22f, 1.00f);
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colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
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colors[ImGuiCol_Border] = ImVec4(0.08f, 0.10f, 0.12f, 1.00f);
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colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
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colors[ImGuiCol_FrameBg] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
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colors[ImGuiCol_FrameBgHovered] = ImVec4(0.12f, 0.20f, 0.28f, 1.00f);
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colors[ImGuiCol_FrameBgActive] = ImVec4(0.09f, 0.12f, 0.14f, 1.00f);
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colors[ImGuiCol_TitleBg] = ImVec4(0.09f, 0.12f, 0.14f, 0.65f);
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colors[ImGuiCol_TitleBgActive] = ImVec4(0.08f, 0.10f, 0.12f, 1.00f);
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colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
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colors[ImGuiCol_MenuBarBg] = ImVec4(0.15f, 0.18f, 0.22f, 1.00f);
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colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.39f);
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colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
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colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.18f, 0.22f, 0.25f, 1.00f);
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colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.09f, 0.21f, 0.31f, 1.00f);
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colors[ImGuiCol_CheckMark] = ImVec4(0.28f, 0.56f, 1.00f, 1.00f);
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colors[ImGuiCol_SliderGrab] = ImVec4(0.28f, 0.56f, 1.00f, 1.00f);
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colors[ImGuiCol_SliderGrabActive] = ImVec4(0.37f, 0.61f, 1.00f, 1.00f);
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colors[ImGuiCol_Button] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
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colors[ImGuiCol_ButtonHovered] = ImVec4(0.28f, 0.56f, 1.00f, 1.00f);
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colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
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colors[ImGuiCol_Header] = ImVec4(0.20f, 0.25f, 0.29f, 0.55f);
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colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
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colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
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colors[ImGuiCol_Separator] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
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colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
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colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
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colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.25f);
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colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
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colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
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colors[ImGuiCol_Tab] = ImVec4(0.11f, 0.15f, 0.17f, 1.00f);
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colors[ImGuiCol_TabHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
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colors[ImGuiCol_TabActive] = ImVec4(0.20f, 0.25f, 0.29f, 1.00f);
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colors[ImGuiCol_TabUnfocused] = ImVec4(0.11f, 0.15f, 0.17f, 1.00f);
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colors[ImGuiCol_TabUnfocusedActive] = ImVec4(0.11f, 0.15f, 0.17f, 1.00f);
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colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
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colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
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colors[ImGuiCol_PlotHistogram] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
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colors[ImGuiCol_PlotHistogramHovered] = ImVec4(0.28f, 0.56f, 1.00f, 1.00f);
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colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
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colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
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colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
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colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
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colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
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colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.60f);
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}
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Icon GetIcon() {
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const std::string iconPath = GetAssetPath("icon.png");
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if (!AssetExists(iconPath)) {
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return {};
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}
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SDL_Surface* loadedSurface = SDL_LoadPNG(iconPath.c_str());
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if (loadedSurface == nullptr) {
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DuskLog.warn("Failed to load icon '{}': {}", iconPath, SDL_GetError());
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return {};
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}
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SDL_Surface* rgbaSurface = SDL_ConvertSurface(loadedSurface, SDL_PIXELFORMAT_RGBA32);
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SDL_DestroySurface(loadedSurface);
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if (rgbaSurface == nullptr) {
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DuskLog.warn("Failed to convert icon '{}': {}", iconPath, SDL_GetError());
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return {};
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}
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const auto iconWidth = static_cast<uint32_t>(rgbaSurface->w);
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const auto iconHeight = static_cast<uint32_t>(rgbaSurface->h);
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const size_t rowSize = static_cast<size_t>(iconWidth) * 4;
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const size_t size = rowSize * static_cast<size_t>(iconHeight);
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auto ptr = std::make_unique<uint8_t[]>(size);
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for (uint32_t row = 0; row < iconHeight; ++row) {
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const auto* src = static_cast<const uint8_t*>(rgbaSurface->pixels) +
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static_cast<size_t>(row) * static_cast<size_t>(rgbaSurface->pitch);
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auto* dst = ptr.get() + static_cast<size_t>(row) * rowSize;
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std::memcpy(dst, src, rowSize);
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}
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SDL_DestroySurface(rgbaSurface);
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return Icon{
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std::move(ptr),
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size,
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iconWidth,
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iconHeight,
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};
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}
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void ImGuiEngine_AddTextures() {
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auto icon = GetIcon();
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if (icon.data == nullptr || icon.width == 0 || icon.height == 0) {
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ImGuiEngine::duskIcon = 0;
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return;
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}
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ImGuiEngine::duskIcon = aurora_imgui_add_texture(icon.width, icon.height, icon.data.get());
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}
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} // namespace dusk
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