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.

Task-number: QTBUG-95353
Change-Id: I4dd9f3934bdd478fb6d2fa686074a24d91f09953
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
(cherry picked from commit 79d04aa9e3e9aa84d7378260519f9e9a6759dc41)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 38 insertions, 33 deletions

diff --git a/cmake/Functions.cmake b/cmake/Functions.cmake
index 4f342eb2d..516ae79fc 100644
--- a/cmake/Functions.cmake
+++ b/cmake/Functions.cmake
@@ -1,19 +1,22 @@
-function(assertTargets errorResult supportResult)
-    if(NOT DEFINED ${supportResult})
-        set(${supportResult} ON PARENT_SCOPE)
-        set(${supportResult} ON)
-    endif()
-    if(${${supportResult}})
-        list(REMOVE_ITEM ARGN ${errorResult})
-        list(REMOVE_ITEM ARGN ${supportResult})
-        foreach(qtTarget IN ITEMS ${ARGN})
-            if(NOT TARGET Qt::${qtTarget})
-                set(${errorResult} "Missing required Qt::${qtTarget}." PARENT_SCOPE)
-                set(${supportResult} OFF PARENT_SCOPE)
-                return()
-            endif()
-        endforeach()
-    endif()
+function(assertTargets)
+    qt_parse_all_arguments(arg "add_check_for_support"
+        "" "" "MODULES;TARGETS" "${ARGN}"
+    )
+    foreach(module ${arg_MODULES})
+        if(NOT DEFINED ${module}_SUPPORT)
+            set(${module}_SUPPORT ON PARENT_SCOPE)
+            set(${module}_SUPPORT ON)
+        endif()
+        if(${module}_SUPPORT)
+            foreach(qtTarget ${arg_TARGETS})
+                if(NOT TARGET Qt::${qtTarget})
+                    set(${module}_ERROR "Missing required Qt::${qtTarget}." PARENT_SCOPE)
+                    set(${module}_SUPPORT OFF PARENT_SCOPE)
+                    break()
+                endif()
+            endforeach()
+        endif()
+    endforeach()
 endfunction()
 
 function(add_implicit_dependencies target)
@@ -27,29 +30,31 @@ function(add_implicit_dependencies target)
     endif()
 endfunction()
 
-
 # TODO: this should be idealy in qtbase
-function(add_check_for_support errorResult supportResult)
-    if(NOT DEFINED ${supportResult})
-        set(${supportResult} ON PARENT_SCOPE)
-        set(${supportResult} ON)
-    endif()
-    if(${${supportResult}})
-        qt_parse_all_arguments(arg "add_check_for_support"
-                               "" "MODULE" "MESSAGE;CONDITION" "${ARGN}")
-        if("x${arg_CONDITION}" STREQUAL x)
-            set(arg_CONDITION ON)
+function(add_check_for_support)
+    qt_parse_all_arguments(arg "add_check_for_support"
+        "" "" "MODULES;MESSAGE;CONDITION" "${ARGN}"
+    )
+    foreach(module ${arg_MODULES})
+        if(NOT DEFINED ${module}_SUPPORT)
+            set(${module}_SUPPORT ON PARENT_SCOPE)
+            set(${module}_SUPPORT ON)
         endif()
-        qt_evaluate_config_expression(result ${arg_CONDITION})
-        if(NOT ${result})
-            set(${supportResult} OFF PARENT_SCOPE)
-            set(${errorResult} ${arg_MESSAGE} PARENT_SCOPE)
+        if(${module}_SUPPORT)
+            if("x${arg_CONDITION}" STREQUAL x)
+                set(arg_CONDITION ON)
+            endif()
+            qt_evaluate_config_expression(result ${arg_CONDITION})
+            if(NOT ${result})
+                set(${module}_SUPPORT OFF PARENT_SCOPE)
+                set(${module}_ERROR ${arg_MESSAGE} PARENT_SCOPE)
             qt_configure_add_report_entry(TYPE WARNING
-                MESSAGE "${arg_MODULE} won't be built. ${arg_MESSAGE}"
+                MESSAGE "${module} won't be built. ${arg_MESSAGE}"
                 CONDITION ON
             )
+            endif()
         endif()
-    endif()
+    endforeach()
 endfunction()
 
 function(get_qt_features outList module)