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build: add cmake support for qt6 #214

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build: add cmake support for qt6 #214

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41 changes: 23 additions & 18 deletions src/CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,10 +1,15 @@
cmake_minimum_required(VERSION 3.3)
cmake_minimum_required(VERSION 3.2)
project(QZXing)

find_package(Qt5 COMPONENTS Core REQUIRED)
find_package(Qt5 COMPONENTS Gui REQUIRED)
find_package(Qt5 COMPONENTS Multimedia )
find_package(Qt5 REQUIRED Svg Quick QuickControls2)
set(QT_COMPONENTS
Core Gui
)

# @see https://doc.qt.io/qt-6/cmake-qt5-and-qt6-compatibility.html#supporting-older-qt-5-versions
if (NOT DEFINED QT_VERSION_MAJOR)
find_package(QT NAMES Qt6 Qt5 COMPONENTS ${QT_COMPONENTS} REQUIRED)
endif()
find_package(Qt${QT_VERSION_MAJOR} COMPONENTS ${QT_COMPONENTS} REQUIRED)

SET(BIGINT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/zxing/bigint)
SET(WIN32_DIR ${CMAKE_CURRENT_SOURCE_DIR}/zxing/win32/zxing)
Expand All @@ -25,16 +30,23 @@ set(SOURCES
)

if(QZXING_MULTIMEDIA)

LIST(APPEND SOURCES QZXingFilter.cpp QZXingFilter.h)
find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Multimedia REQUIRED)
list(APPEND QT_COMPONENTS Multimedia)
if(QT_VERSION VERSION_GREATER_EQUAL 6.2)
list(APPEND SOURCES QZXingFilterVideoSink.cpp QZXingFilterVideoSink.h)
else()
list(APPEND SOURCES QZXingFilter.cpp QZXingFilter.h)
endif()
add_definitions(-DQZXING_MULTIMEDIA)

SET(QZXING_USE_QML ON)

endif(QZXING_MULTIMEDIA)

if(QZXING_USE_QML)
LIST(APPEND SOURCES QZXingImageProvider.cpp QZXingImageProvider.h)
find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Svg Quick QuickControls2 REQUIRED)
list(APPEND QT_COMPONENTS Svg Quick QuickControls2)
list(APPEND SOURCES QZXingImageProvider.cpp QZXingImageProvider.h)
add_definitions(-DQZXING_QML)
endif(QZXING_USE_QML)

Expand Down Expand Up @@ -65,18 +77,15 @@ add_subdirectory(zxing/bigint)

add_subdirectory(zxing/zxing)

target_link_libraries(qzxing Qt5::Core Qt5::Gui)
set(QT_LINK_LIBS ${QT_COMPONENTS})
list(TRANSFORM QT_LINK_LIBS PREPEND Qt${QT_VERSION_MAJOR}::)
target_link_libraries(qzxing ${QT_LINK_LIBS})

if(QZXING_MULTIMEDIA)
target_link_libraries(qzxing Qt5::Multimedia)
target_compile_definitions(qzxing PUBLIC -DQZXING_MULTIMEDIA)
endif(QZXING_MULTIMEDIA)

if(QZXING_USE_QML)
target_link_libraries(qzxing
Qt5::Svg
Qt5::Quick
Qt5::QuickControls2)
target_compile_definitions(qzxing PUBLIC -DQZXING_QML)
endif(QZXING_USE_QML)

Expand Down Expand Up @@ -104,10 +113,6 @@ if(QZXING_USE_DECODER_PDF17)
target_compile_definitions(qzxing PRIVATE -DENABLE_DECODER_PDF17)
endif()

if(QZXING_USE_DECODER_1D_BARCODES)
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target_compile_definitions(qzxing PRIVATE -DENABLE_DECODER_1D_BARCODES)
endif()


# Change Global Definitions depending on how you want to use the library
target_compile_definitions(qzxing PUBLIC DISABLE_LIBRARY_FEATURES)
Expand Down