add cmake submod and fix minor things

Author: fferri

.gitmodules

@@ -9,3 +9,7 @@
 	path = external/v_repPlusPlus
 	url = https://github.com/CoppeliaRobotics/v_repPlusPlus
 	branch = master
+[submodule "cmake/CoppeliaRobotics-modules"]
+	path = cmake/CoppeliaRobotics-modules
+	url = https://github.com/CoppeliaRobotics/cmake.git
+	branch = master

CMakeLists.txt

@@ -17,21 +17,24 @@ find_package(Qt53DRender REQUIRED)
 find_package(Qt53DInput REQUIRED)
 find_package(Qt53DExtras REQUIRED)
 
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules/")
+set(CMAKE_MODULE_PATH
+    ${CMAKE_MODULE_PATH}
+    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules
+    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/CoppeliaRobotics-modules)
 find_package(VREP 3.5.0 REQUIRED)
 
 include_directories(${VREP_INCLUDE})
-include_directories(${CMAKE_BINARY_DIR}/generated)
-include_directories(${CMAKE_SOURCE_DIR}/external)
-include_directories(${CMAKE_SOURCE_DIR}/external/QDataflowCanvas)
-include_directories(${CMAKE_SOURCE_DIR}/external/QCustomPlot-2.0.0)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/generated)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/external)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/external/QDataflowCanvas)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/external/QCustomPlot-2.0.0)
 include_directories(${Boost_INCLUDE_DIRS})
 
-vrep_generate_stubs(${CMAKE_BINARY_DIR}/generated XML_FILE ${CMAKE_SOURCE_DIR}/callbacks.xml LUA_FILE ${CMAKE_SOURCE_DIR}/simExtCustomUI.lua)
+vrep_generate_stubs(${CMAKE_CURRENT_BINARY_DIR}/generated XML_FILE ${CMAKE_CURRENT_SOURCE_DIR}/callbacks.xml LUA_FILE ${CMAKE_CURRENT_SOURCE_DIR}/simExtCustomUI.lua)
 
-add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/generated/widgets.html
-    COMMAND xsltproc -o ${CMAKE_BINARY_DIR}/generated/widgets.html ${CMAKE_SOURCE_DIR}/widgets.xsl ${CMAKE_SOURCE_DIR}/widgets.xml
-    DEPENDS ${CMAKE_SOURCE_DIR}/widgets.xml ${CMAKE_SOURCE_DIR}/widgets.xsl)
+add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/generated/widgets.html
+    COMMAND xsltproc -o ${CMAKE_CURRENT_BINARY_DIR}/generated/widgets.html ${CMAKE_CURRENT_SOURCE_DIR}/widgets.xsl ${CMAKE_CURRENT_SOURCE_DIR}/widgets.xml
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/widgets.xml ${CMAKE_CURRENT_SOURCE_DIR}/widgets.xsl)
 
 set(ENABLE_SIGNAL_SPY false CACHE BOOL "if Qt private headers are installed, enable this to debug Qt signals")
 set(WIDGET_BUTTON true CACHE BOOL "include the button widget")
@@ -58,7 +61,7 @@ set(WIDGET_TEXTBROWSER true CACHE BOOL "include the textbrowser widget")
 set(WIDGET_TREE true CACHE BOOL "include the tree widget")
 set(WIDGET_VSLIDER true CACHE BOOL "include the vslider widget")
 
-configure_file(${CMAKE_SOURCE_DIR}/config.h.in ${CMAKE_BINARY_DIR}/config.h)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h)
 
 set(SOURCES
     Proxy.cpp
@@ -73,8 +76,8 @@ set(SOURCES
     widgets/LayoutWidget.cpp
     widgets/Widget.cpp
     widgets/Window.cpp
-    ${CMAKE_SOURCE_DIR}/external/v_repPlusPlus/Plugin.cpp
-    ${CMAKE_BINARY_DIR}/generated/stubs.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/external/v_repPlusPlus/Plugin.cpp
+    ${CMAKE_CURRENT_BINARY_DIR}/generated/stubs.cpp
     ${VREP_EXPORTED_SOURCES}
 )