feat: Added layout manager to save and restore custom layouts

lib/libimhex/source/api/layout_manager.cpp

@@ -0,0 +1,75 @@
+#include <hex/api/layout_manager.hpp>
+
+#include <hex/helpers/fs.hpp>
+#include <wolv/utils/string.hpp>
+
+#include <imgui.h>
+
+namespace hex {
+
+    std::optional<std::fs::path> LayoutManager::s_layoutPathToLoad;
+    std::optional<std::string> LayoutManager::s_layoutStringToLoad;
+    std::vector<LayoutManager::Layout> LayoutManager::s_layouts;
+
+    void LayoutManager::load(const std::fs::path &path) {
+        s_layoutPathToLoad = path;
+    }
+
+    void LayoutManager::loadString(const std::string &content) {
+        s_layoutStringToLoad = content;
+    }
+
+    void LayoutManager::save(const std::string &name) {
+        auto fileName = name;
+        fileName = wolv::util::replaceStrings(fileName, " ", "_");
+        std::transform(fileName.begin(), fileName.end(), fileName.begin(), tolower);
+        fileName += ".hexlyt";
+
+        const auto path = hex::fs::getDefaultPaths(fs::ImHexPath::Layouts).front() / fileName;
+        ImGui::SaveIniSettingsToDisk(wolv::util::toUTF8String(path).c_str());
+
+        LayoutManager::reload();
+    }
+
+    std::vector<LayoutManager::Layout> LayoutManager::getLayouts() {
+        return s_layouts;
+    }
+
+    void LayoutManager::process() {
+        if (s_layoutPathToLoad.has_value()) {
+            ImGui::LoadIniSettingsFromDisk(wolv::util::toUTF8String(*s_layoutPathToLoad).c_str());
+            s_layoutPathToLoad = std::nullopt;
+        }
+
+        if (s_layoutStringToLoad.has_value()) {
+            ImGui::LoadIniSettingsFromMemory(s_layoutStringToLoad->c_str());
+            s_layoutStringToLoad = std::nullopt;
+        }
+    }
+
+    void LayoutManager::reload() {
+        s_layouts.clear();
+
+        for (const auto &directory : hex::fs::getDefaultPaths(fs::ImHexPath::Layouts)) {
+            for (const auto &entry : std::fs::directory_iterator(directory)) {
+                const auto &path = entry.path();
+
+                if (path.extension() != ".hexlyt")
+                    continue;
+
+                auto name = path.stem().string();
+                name = wolv::util::replaceStrings(name, "_", " ");
+                for (size_t i = 0; i < name.size(); i++) {
+                    if (i == 0 || name[i - 1] == '_')
+                        name[i] = char(std::toupper(name[i]));
+                }
+
+                s_layouts.push_back({
+                    name,
+                    path
+                });
+            }
+        }
+    }
+
+}

lib/libimhex/source/helpers/fs.cpp

@@ -214,6 +214,9 @@ namespace hex::fs {
             case ImHexPath::Themes:
                 result = appendPath(getDataPaths(), "themes");
                 break;
+            case ImHexPath::Layouts:
+                result = appendPath(getDataPaths(), "layouts");
+                break;
         }
 
         if (!listNonExisting) {