Separator ftxui::{screen,dom,component} into separate build unit.

CMakeLists.txt

@@ -1,4 +1,8 @@
 cmake_minimum_required(VERSION 3.0)
+project(ftxui
+  LANGUAGES CXX
+  VERSION 0.1
+)
 
 enable_testing()
 

examples/CMakeLists.txt

@@ -1,10 +1,7 @@
 cmake_minimum_required(VERSION 3.0)
 
-function(example name)
-  add_executable(${name} ${name}.cpp)
-  target_link_libraries(${name} PUBLIC ftxui)
-endfunction(example)
-
 add_subdirectory(component)
 add_subdirectory(dom)
-example(print_key_press)
+
+add_executable(print_key_press print_key_press.cpp)
+target_link_libraries(print_key_press PUBLIC component)

examples/component/CMakeLists.txt

@@ -1,3 +1,9 @@
+find_package(ftxui)
+function(example name)
+  add_executable(${name} ${name}.cpp)
+  target_link_libraries(${name} PUBLIC component)
+endfunction(example)
+
 example(input)
 example(menu)
 example(menu2)

examples/dom/CMakeLists.txt

@@ -1,3 +1,8 @@
+function(example name)
+  add_executable(${name} ${name}.cpp)
+  target_link_libraries(${name} PUBLIC dom)
+endfunction(example)
+
 example(blink)
 example(bold)
 example(color)

ftxui/CMakeLists.txt

@@ -1,15 +1,28 @@
 cmake_minimum_required(VERSION 3.0)
 
-add_library(ftxui
-  src/ftxui/component/component.cpp
-  src/ftxui/component/component_direction.cpp
-  src/ftxui/component/component_horizontal.cpp
-  src/ftxui/component/component_vertical.cpp
-  src/ftxui/component/event.cpp
-  src/ftxui/component/input.cpp
-  src/ftxui/component/menu.cpp
-  src/ftxui/component/screen_interactive.cpp
-  src/ftxui/component/toggle.cpp
+####################
+# ftxui::screen
+####################
+add_library(screen
+  src/ftxui/screen/screen.cpp
+  src/ftxui/terminal.cpp
+  src/ftxui/util/string.cpp
+)
+
+target_include_directories(screen
+  PUBLIC
+    $<INSTALL_INTERFACE:include>    
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+  PRIVATE src
+)
+
+target_compile_features(screen PUBLIC cxx_std_17)
+target_compile_options(screen PRIVATE -Wall)
+
+####################
+# ftxui::dom
+####################
+add_library(dom
   src/ftxui/dom/blink.cpp
   src/ftxui/dom/bold.cpp
   src/ftxui/dom/color.cpp
@@ -28,45 +41,95 @@ add_library(ftxui
   src/ftxui/dom/underlined.cpp
   src/ftxui/dom/util.cpp
   src/ftxui/dom/vbox.cpp
-  src/ftxui/screen/screen.cpp
-  src/ftxui/terminal.cpp
-  src/ftxui/util/string.cpp
 )
 
-target_include_directories(ftxui
-  PUBLIC include
+target_include_directories(dom
+  PUBLIC
+    $<INSTALL_INTERFACE:include>    
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
   PRIVATE src
 )
 
-target_compile_features(ftxui PUBLIC cxx_std_17)
-target_compile_options(ftxui PRIVATE -Wall)
+target_link_libraries(dom
+  PUBLIC screen
+)
+
+target_compile_features(dom PUBLIC cxx_std_17)
+target_compile_options(dom PRIVATE -Wall)
+
+####################
+# ftxui::component
+####################
+add_library(component
+  src/ftxui/component/component.cpp
+  src/ftxui/component/component_direction.cpp
+  src/ftxui/component/component_horizontal.cpp
+  src/ftxui/component/component_vertical.cpp
+  src/ftxui/component/event.cpp
+  src/ftxui/component/input.cpp
+  src/ftxui/component/menu.cpp
+  src/ftxui/component/screen_interactive.cpp
+  src/ftxui/component/toggle.cpp
+)
+
+target_include_directories(component
+  PUBLIC
+    $<INSTALL_INTERFACE:include>    
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+  PRIVATE src
+)
+
+target_link_libraries(component
+  PUBLIC dom
+)
+
+target_compile_features(component PUBLIC cxx_std_17)
+target_compile_options(component PRIVATE -Wall)
+
+include(GNUInstallDirs)
+install(TARGETS screen dom component
+    EXPORT ftxui-export
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}/ftxui/
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}/ftxui/
+)
+
+install(DIRECTORY include/ftxui DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file(
+  ftxui-config.cmake
+  VERSION ${PACKAGE_VERSION}
+  COMPATIBILITY AnyNewerVersion
+)
+
+install(EXPORT ftxui-export
+  FILE ftxui-targets.cmake
+	NAMESPACE ftxui::
+	DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/ftxui
+)
 
 # Note: For gtest, please follow:
 # https://stackoverflow.com/questions/24295876/cmake-cannot-find-a-googletest-required-library
 find_package(GTest)
 find_package(Threads)
 if (GTEST_FOUND AND THREADS_FOUND)
-  function(add_new_test test_name test_files)
-    add_executable(${ARGV})
-    target_link_libraries(${test_name}
-      PRIVATE
-        ftxui
-        Threads::Threads
-        ${GTEST_BOTH_LIBRARIES}
-    )
-    target_include_directories(ftxui
-      PRIVATE
-        ${GTest_INCLUDE_DIRS}
-        ftxui
-    )
-    gtest_discover_tests(${test_name})
-    add_test(${test_name} ${test_name})
-  endfunction(add_new_test)
-
-  add_new_test(dom_tests
+  add_executable(dom_tests
     src/ftxui/dom/gauge_test.cpp
     src/ftxui/dom/hbox_test.cpp
     src/ftxui/dom/text_test.cpp
     src/ftxui/dom/vbox_test.cpp
   )
+
+  target_link_libraries(dom_tests
+    PRIVATE dom
+    PRIVATE Threads::Threads
+    PRIVATE ${GTEST_BOTH_LIBRARIES}
+  )
+
+  target_include_directories(dom_tests
+    PRIVATE ${GTest_INCLUDE_DIRS}
+  )
+  gtest_discover_tests(dom_tests)
+  add_test(dom_tests dom_tests)
+
 endif()

ftxui/include/ftxui/dom/elements.hpp

@@ -43,6 +43,7 @@ Decorator bgcolor(Color);
 Element hcenter(Element);
 Element vcenter(Element);
 Element center(Element);
+Element align_right(Element);
 
 // --- Util ---
 Element nothing(Element element);

ftxui/src/ftxui/dom/composite_decorator.cpp

@@ -15,4 +15,8 @@ std::unique_ptr<Node> center(Element child) {
   return hcenter(vcenter(std::move(child)));
 }
 
+std::unique_ptr<Node> align_right(Element child) {
+  return hbox(filler(), std::move(child));
+}
+
 } // namespace ftxui::dom