Set up project CMake structure (#16)

* set up module library structure

* set up module library structure

* removed test function and finalized CMake project structure

* fix error with no class memeber

CMakeLists.txt

@@ -8,11 +8,9 @@ endif()
 # find dependencies
 find_package(ament_cmake REQUIRED)
 find_package(ryml REQUIRED)
-# uncomment the following section in order to fill in
-# further dependencies manually.
-# find_package(<dependency> REQUIRED)
 
-add_executable(diagnostics src/main/diagnostics.cpp)
+
+add_subdirectory(src)
 target_include_directories(diagnostics PUBLIC
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
   $<INSTALL_INTERFACE:include>)

src/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_subdirectory(main)
+add_subdirectory(ui)

src/main/CMakeLists.txt

@@ -0,0 +1,9 @@
+add_executable(diagnostics diagnostics.cpp)
+
+target_link_libraries(diagnostics PRIVATE
+    UI
+)
+
+target_include_directories(diagnostics PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)

src/main/diagnostics.cpp

@@ -1,10 +1,15 @@
-#include <cstdio>
+#include <iostream>
+
+#include "commonUI.h"
 
 int main(int argc, char ** argv)
 {
     (void)argc;
     (void)argv;
 
-    printf("Welcome to UBC Sailbot diagnostics!\n");
+    std::cout << "Welcome to UBC Sailbot Diagnostics! The C++ version" << std::endl;
+
+    CommonUI myObj;
+
     return 0;
 }

src/ui/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(common)

src/ui/common/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_library(UI STATIC commonUI.cpp commonUI.h)
+target_include_directories(UI PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

src/ui/common/commonUI.cpp

@@ -0,0 +1,13 @@
+#include "commonUI.h"
+
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+CommonUI::CommonUI() { terminal_width = getTerminalWidth(); }
+
+int CommonUI::getTerminalWidth()
+{
+    struct winsize size;
+    ioctl(STDOUT_FILENO, TIOCGWINSZ, &size);
+    return size.ws_col;
+}

src/ui/common/commonUI.h

@@ -0,0 +1,16 @@
+#ifndef COMMON_UI_H_
+#define COMMON_UI_H_
+
+/* Objects */
+
+class CommonUI
+{
+private:
+    int        terminal_width;
+    static int getTerminalWidth();
+
+public:
+    CommonUI();
+};
+
+#endif