Add doc to cmake

Signed-off-by: Carl Schwan <carl@carlschwan.eu>

CMakeLists.txt

+# SPDX-FileCopyrightText: 2022 Carl Schwan <carl@carlschwan.eu>
+# SPDX-License-Identifier: BSD-2-Clause
+
 cmake_minimum_required(VERSION 3.8)
 
 # KDE Application Version, managed by release script
@@ -35,8 +38,8 @@ ecm_setup_version(${PROJECT_VERSION}
 )
 
 ################# Find dependencies #################
-find_package(Qt${QT_MAJOR_VERSION} ${QT_MIN_VERSION} REQUIRED COMPONENTS Core Gui Qml QuickControls2 Svg Sql )
-find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS Kirigami2 I18n CoreAddons)
+find_package(Qt${QT_MAJOR_VERSION} ${QT_MIN_VERSION} REQUIRED COMPONENTS Core Gui Qml QuickControls2 Svg Sql)
+find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS Kirigami2 I18n CoreAddons DocTools)
 
 if(NOT ANDROID)
     find_package(Qt${QT_MAJOR_VERSION} ${QT_MIN_VERSION} REQUIRED COMPONENTS DBus Widgets)
@@ -49,6 +52,7 @@ add_definitions(-DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT)
 add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x050d00)
 
 add_subdirectory(src)
+add_subdirectory(doc)
 
 install(PROGRAMS org.kde.kontrast.desktop DESTINATION ${KDE_INSTALL_APPDIR})
 install(FILES org.kde.kontrast.appdata.xml DESTINATION ${KDE_INSTALL_METAINFODIR})

doc/CMakeLists.txt

+# SPDX-FileCopyrightText: 2022 Carl Schwan <carl@carlschwan.eu>
+# SPDX-License-Identifier: BSD-2-Clause
+
+kdoctools_create_handbook(index.docbook INSTALL_DESTINATION ${KDE_INSTALL_DOCBUNDLEDIR}/en SUBDIR kontrast)