Add KPart host "Universal Wrapper" plugin

build.sh

@@ -72,6 +72,14 @@ install -m 644 wdx/mediainfo/luajit/*.lua      release/wdx/mediainfo/
 install -m 644 wdx/translitwdx/translitwdx.lua release/wdx/translitwdx/
 install -m 644 wdx/translitwdx/readme.txt      release/wdx/translitwdx/
 
+# kpart
+mkdir -p release/wlx/kpart
+mkdir -p wlx/kpart/build
+(cd wlx/kpart/build && cmake .. && make)
+install -m 644 wlx/kpart/build/kpart_host_qt6.wlx release/wlx/kpart/
+install -m 644 wlx/kpart/*.md release/wlx/kpart/
+install -m 644 wlx/kpart/*.png release/wlx/kpart/
+
 # logview
 mkdir -p release/wlx/logview
 mkdir -p wlx/logview/build

wlx/kpart/CMakeLists.txt

@@ -0,0 +1,43 @@
+cmake_minimum_required(VERSION 3.16)
+project(kpart_host_qt6 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_AUTOMOC ON)
+
+# Double Commander plugin settings
+set(CMAKE_SHARED_LIBRARY_PREFIX "")
+if(UNIX)
+    set(CMAKE_SHARED_LIBRARY_SUFFIX ".wlx")
+endif()
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+find_package(KF6Parts REQUIRED)
+find_package(KF6KIO REQUIRED)
+find_package(KF6CoreAddons REQUIRED)
+
+include_directories(
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../sdk
+)
+
+add_library(kpart_host_qt6 SHARED
+    src/main.cpp
+    src/kpartwidget.cpp
+)
+
+target_link_libraries(kpart_host_qt6
+    PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+    KF6::Parts
+    KF6::KIOFileWidgets
+    KF6::CoreAddons
+)
+
+# Use ECM for standard installation paths and KDE integration
+find_package(ECM 5.80.0 REQUIRED NO_MODULE)
+set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
+include(KDEInstallDirs)
+include(KDECMakeSettings)
+include(KDECompilerSettings NO_POLICY_SCOPE)

wlx/kpart/README.md

@@ -0,0 +1,26 @@
+# KPart Host Double Commander Plugin
+
+A "Universal KDE Wrapper" WLX (Lister) plugin for Double Commander. This plugin acts as a host for KDE KParts, allowing Double Commander to view any file type supported by a KDE application (like Okular for PDFs or LibreOffice for documents) directly in the Quick View panel.
+
+![Markdown Screenshot](kpart_md.png)
+![SVG Screenshot](kpart_svg.png)
+
+## Features
+- Dynamic MIME-type detection using `QMimeDatabase`.
+- Automatic loading of the best available KDE KPart for the file type.
+- Native Wayland/Qt6 embedding via in-process KPart hosting.
+
+## Dependencies
+- **Qt6**: Core, Gui, Widgets
+- **KDE Frameworks 6 (KF6)**: Parts, KIO, CoreAddons
+- **CMake**: `cmake` and `extra-cmake-modules`
+
+## Compilation
+```bash
+mkdir build
+cd build
+cmake ..
+make
+```
+
+The build will produce `kpart_host.wlx`.