Allow to build examples as standalone project

Create CMake config files which can be used from the very same CMake
project. These CMake config files simply do not create any targets,
controlled via the QT_NO_CREATE_TARGETS.

This patch also allows to build qtbase.git:examples as a standalone
project, against an already-built Qt.

Ran this:
  ag -s "QT " examples -l -0 | xargs -0 -n 1 .../util/cmake/pro2cmake.py --is-example

Task-number: QTBUG-74713
Change-Id: I44cce5a4048618b30f890c5b789592c227a8b47d
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

5 files changed, 115 insertions, 60 deletions

diff --git a/examples/qtestlib/tutorial1/CMakeLists.txt b/examples/qtestlib/tutorial1/CMakeLists.txt
index 6e489e329f..b30293a3e3 100644
--- a/examples/qtestlib/tutorial1/CMakeLists.txt
+++ b/examples/qtestlib/tutorial1/CMakeLists.txt
@@ -1,16 +1,27 @@
 # Generated from tutorial1.pro.
 
-#####################################################################
-## tutorial1 Binary:
-#####################################################################
+cmake_minimum_required(VERSION 3.14)
+project(tutorial1 LANGUAGES CXX)
 
-add_qt_executable(tutorial1
-    GUI
-    OUTPUT_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial1"
-    INSTALL_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial1"
-    SOURCES
-        testqstring.cpp
-    LIBRARIES
-        Qt::Widgets
-        Qt::Test
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
+
+set(INSTALL_EXAMPLEDIR "examples")
+
+find_package(Qt5 COMPONENTS Widgets)
+find_package(Qt5 COMPONENTS Test)
+
+add_executable(tutorial1 WIN32 MACOSX_BUNDLE
+    testqstring.cpp
+)
+target_link_libraries(tutorial1 PUBLIC
+    Qt::Test
+    Qt::Widgets
+)
+install(TARGETS tutorial1
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
 )
diff --git a/examples/qtestlib/tutorial2/CMakeLists.txt b/examples/qtestlib/tutorial2/CMakeLists.txt
index 06288ce50b..ed7cc3f224 100644
--- a/examples/qtestlib/tutorial2/CMakeLists.txt
+++ b/examples/qtestlib/tutorial2/CMakeLists.txt
@@ -1,16 +1,27 @@
 # Generated from tutorial2.pro.
 
-#####################################################################
-## tutorial2 Binary:
-#####################################################################
+cmake_minimum_required(VERSION 3.14)
+project(tutorial2 LANGUAGES CXX)
 
-add_qt_executable(tutorial2
-    GUI
-    OUTPUT_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial2"
-    INSTALL_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial2"
-    SOURCES
-        testqstring.cpp
-    LIBRARIES
-        Qt::Widgets
-        Qt::Test
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
+
+set(INSTALL_EXAMPLEDIR "examples")
+
+find_package(Qt5 COMPONENTS Widgets)
+find_package(Qt5 COMPONENTS Test)
+
+add_executable(tutorial2 WIN32 MACOSX_BUNDLE
+    testqstring.cpp
+)
+target_link_libraries(tutorial2 PUBLIC
+    Qt::Test
+    Qt::Widgets
+)
+install(TARGETS tutorial2
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
 )
diff --git a/examples/qtestlib/tutorial3/CMakeLists.txt b/examples/qtestlib/tutorial3/CMakeLists.txt
index 79683e0cfc..975ac4dfd6 100644
--- a/examples/qtestlib/tutorial3/CMakeLists.txt
+++ b/examples/qtestlib/tutorial3/CMakeLists.txt
@@ -1,16 +1,27 @@
 # Generated from tutorial3.pro.
 
-#####################################################################
-## tutorial3 Binary:
-#####################################################################
+cmake_minimum_required(VERSION 3.14)
+project(tutorial3 LANGUAGES CXX)
 
-add_qt_executable(tutorial3
-    GUI
-    OUTPUT_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial3"
-    INSTALL_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial3"
-    SOURCES
-        testgui.cpp
-    LIBRARIES
-        Qt::Widgets
-        Qt::Test
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
+
+set(INSTALL_EXAMPLEDIR "examples")
+
+find_package(Qt5 COMPONENTS Widgets)
+find_package(Qt5 COMPONENTS Test)
+
+add_executable(tutorial3 WIN32 MACOSX_BUNDLE
+    testgui.cpp
+)
+target_link_libraries(tutorial3 PUBLIC
+    Qt::Test
+    Qt::Widgets
+)
+install(TARGETS tutorial3
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
 )
diff --git a/examples/qtestlib/tutorial4/CMakeLists.txt b/examples/qtestlib/tutorial4/CMakeLists.txt
index 2f3d2bb88a..069afd031e 100644
--- a/examples/qtestlib/tutorial4/CMakeLists.txt
+++ b/examples/qtestlib/tutorial4/CMakeLists.txt
@@ -1,16 +1,27 @@
 # Generated from tutorial4.pro.
 
-#####################################################################
-## tutorial4 Binary:
-#####################################################################
+cmake_minimum_required(VERSION 3.14)
+project(tutorial4 LANGUAGES CXX)
 
-add_qt_executable(tutorial4
-    GUI
-    OUTPUT_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial4"
-    INSTALL_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial4"
-    SOURCES
-        testgui.cpp
-    LIBRARIES
-        Qt::Widgets
-        Qt::Test
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
+
+set(INSTALL_EXAMPLEDIR "examples")
+
+find_package(Qt5 COMPONENTS Widgets)
+find_package(Qt5 COMPONENTS Test)
+
+add_executable(tutorial4 WIN32 MACOSX_BUNDLE
+    testgui.cpp
+)
+target_link_libraries(tutorial4 PUBLIC
+    Qt::Test
+    Qt::Widgets
+)
+install(TARGETS tutorial4
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
 )
diff --git a/examples/qtestlib/tutorial5/CMakeLists.txt b/examples/qtestlib/tutorial5/CMakeLists.txt
index e4af9b354c..65dba6dcb5 100644
--- a/examples/qtestlib/tutorial5/CMakeLists.txt
+++ b/examples/qtestlib/tutorial5/CMakeLists.txt
@@ -1,16 +1,27 @@
 # Generated from tutorial5.pro.
 
-#####################################################################
-## tutorial5 Binary:
-#####################################################################
+cmake_minimum_required(VERSION 3.14)
+project(tutorial5 LANGUAGES CXX)
 
-add_qt_executable(tutorial5
-    GUI
-    OUTPUT_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial5"
-    INSTALL_DIRECTORY "${INSTALL_EXAMPLESDIR}/qtestlib/tutorial5"
-    SOURCES
-        benchmarking.cpp
-    LIBRARIES
-        Qt::Widgets
-        Qt::Test
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
+
+set(INSTALL_EXAMPLEDIR "examples")
+
+find_package(Qt5 COMPONENTS Widgets)
+find_package(Qt5 COMPONENTS Test)
+
+add_executable(tutorial5 WIN32 MACOSX_BUNDLE
+    benchmarking.cpp
+)
+target_link_libraries(tutorial5 PUBLIC
+    Qt::Test
+    Qt::Widgets
+)
+install(TARGETS tutorial5
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
 )