Add QtPdf to cmake build

Port QtPdf to Qt6:

  * QtPdf,QtPdfWidgets,QtPdfQuick libs
  * QtPdfQuickPlugin, QtPdfPlugin (imageformat) plugins
  * widget and quick examples
  * qtpdf tests

To fit gn cmake integration and new repo layout code is a bit
reshuffled.

Compared to qmke build following features are not ported yet:

  * ios fat libs
  * qtbase 3rdparty static dependencies

WebEngine build can be skipped with setting
QT_FEATURE_qtwebengine_build=OFF

Note this patch needs follow up for 6.2 branch to disable qtpdf
builds by default, since this should not part of qt 6.2 release.

Pick-to: 6.2
Task-number: QTBUG-95353
Change-Id: I4dd9f3934bdd478fb6d2fa686074a24d91f09953
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 29 insertions, 15 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 54b750968..3b5d5df2a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,21 +33,25 @@ set(__QtFeature_only_evaluate_features OFF)
 include(configure.cmake)
 include(src/core/api/configure.cmake)
 include(src/webenginequick/configure.cmake)
+include(src/pdf/configure.cmake)
 qt_feature_module_end(ONLY_EVALUATE_FEATURES)
-
-if(NOT ${webEngineSupport})
+if(NOT ${QtWebEngine_SUPPORT})
     add_custom_target(WebEngineErrorMessage ALL
-        ${CMAKE_COMMAND} -E cmake_echo_color --red "QtWebEngine will not be built: ${webEngineError}"
-        COMMENT "Check QtWebEngine support")
-    message("-- Support check for QtWebEngine failed: ${webEngineError}")
+        ${CMAKE_COMMAND} -E cmake_echo_color --red "QtWebEngine will not be built: ${QtWebEngine_ERROR}"
+        COMMENT "Check QtWebEngine support"
+        VERBATIM
+    )
+    message("-- Support check for QtWebEngine failed: ${QtWebEngine_ERROR}")
     set(QT_FEATURE_qtwebengine_build OFF CACHE BOOL "Build QtWebEngine" FORCE)
 endif()
 
-if(NOT ${pdfSupport})
+if(NOT ${QtPdf_SUPPORT})
     add_custom_target(PdfErrorMessage ALL
-        ${CMAKE_COMMAND} -E cmake_echo_color --red "QtPdf will not be built: ${pdfError}"
-        COMMENT "Check QtPdf support")
-    message("-- Support check for QtPdf failed: ${pdfError}")
+        ${CMAKE_COMMAND} -E cmake_echo_color --red "QtPdf will not be built: ${QtPdf_ERROR}"
+        COMMENT "Check QtPdf support"
+        VERBATIM
+    )
+    message("-- Support check for QtPdf failed: ${QtPdf_ERROR}")
     set(QT_FEATURE_qtpdf_build OFF CACHE BOOL "Build QtPdf" FORCE)
 endif()
 
@@ -57,11 +61,19 @@ if(NOT QT_FEATURE_qtwebengine_build AND NOT QT_FEATURE_qtpdf_build)
     return()
 endif()
 
-add_subdirectory(src/core/api)
-add_subdirectory(src/core/tools)
-add_subdirectory(src/process)
-add_subdirectory(src/webenginewidgets)
-add_subdirectory(src/webenginequick)
+if(QT_FEATURE_qtwebengine_build)
+    add_subdirectory(src/core/api)
+    add_subdirectory(src/core/tools)
+    add_subdirectory(src/process)
+    add_subdirectory(src/webenginewidgets)
+    add_subdirectory(src/webenginequick)
+endif()
+
+if(QT_FEATURE_qtpdf_build)
+    add_subdirectory(src/pdf)
+    add_subdirectory(src/pdfwidgets)
+    add_subdirectory(src/pdfquick)
+endif()
 qt_build_repo_end()
 get_install_config(installConfig)
 
@@ -106,6 +118,7 @@ endif()
 get_filename_component(WEBENGINE_ROOT_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}" REALPATH)
 get_qt_features(featureList webengine)
 get_qt_features(featureList qtwebengine)
+get_qt_features(featureList qtpdf)
 
 if(NOT DEFINED CMAKE_TOOLCHAIN_FILE AND QT_SUPERBUILD)
     set(CMAKE_TOOLCHAIN_FILE "${CMAKE_BINARY_DIR}/qtbase/lib/cmake/Qt6/qt.toolchain.cmake")
@@ -227,7 +240,7 @@ if(NOT Ninja_FOUND)
     externalproject_add_stepdependencies(gn install ninja)
 endif()
 
-if(NOT QT_FEATURE_framework)
+if(QT_FEATURE_qtwebengine_build AND NOT QT_FEATURE_framework)
     # install resources (again), coin calls install with DESTDIR
     install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/translations/qtwebengine_locales
         DESTINATION ${CMAKE_INSTALL_PREFIX}/translations
@@ -263,6 +276,7 @@ if(CMAKE_CROSSCOMPILING)
                    -DCMAKE_C_FLAGS=
                    -DCMAKE_CXX_FLAGS=
                    -DQT_FEATURE_qtwebengine_build=${QT_FEATURE_qtwebengine_build}
+                   -DQT_FEATURE_qtpdf_build=${QT_FEATURE_qtpdf_build}
     )
     externalproject_add_stepdependencies(qtwebengine install hostBuild)
 endif()