ENH: Replace with the one from InsightApp

Modules/FindFLTK.cmake

@@ -3,49 +3,18 @@
 #
 # The following settings are defined
 # FLTK_FLUID_EXECUTABLE, where to find the Fluid tool
+# FLTK_WRAP_UI, This allows the FLTK_WRAP_UI command to work.
 # FLTK_INCLUDE_DIR, where to find include files
 # FLTK_LIBRARIES, list of fltk libraries
-# FLTK_VERSION_1.0.11 Use this Version
-# FLTK_VERSION_1.1 Use this Version
 # FLTK_FOUND, Don't use FLTK if false.
 
-# this is around for backwards compatibility 
-# FLTK_WRAP_UI set to true if FLTK_FLUID_EXECUTABLE is found
-
-
-
 # The following settings should not be used in general.
 # FLTK_BASE_LIBRARY    = the full path to fltk.lib
 # FLTK_GL_LIBRARY      = the full path to fltk_gl.lib
 # FLTK_FORMS_LIBRARY   = the full path to fltk_forms.lib
 # FLTK_IMAGES_LIBRARY  = the full path to fltk_images.lib
 
-OPTION(FLTK_VERSION_1.1    "Use FLTK version 1.1"    1)
-OPTION(FLTK_VERSION_1.0.11 "Use FLTK version 1.0.11" 0)
-
-# Exclusion between the two version
-
-IF(FLTK_VERSION_1.1)
-  SET(FLTK_VERSION_1.0.11 0)
-ENDIF(FLTK_VERSION_1.1)
-
-# look for both Fl.h and Fl.H
-FIND_PATH(FLTK_INCLUDE_DIR FL/Fl.h
-  /usr/local/include
-  /usr/include
-  /usr/local/fltk
-  /usr/X11R6/include
-)
-
-FIND_PATH(FLTK_INCLUDE_DIR FL/Fl.H
-  /usr/local/include
-  /usr/include
-  /usr/local/fltk
-  /usr/X11R6/include
-)
-
 # Platform dependent libraries required by FLTK
-
 IF(WIN32)
   IF(NOT CYGWIN)
     IF(BORLAND)
@@ -57,7 +26,7 @@ IF(WIN32)
 ENDIF(WIN32)
 
 IF(UNIX)
-  INCLUDE(FindX11)
+  INCLUDE(${CMAKE_ROOT}/Modules/FindX11.cmake)
   SET( FLTK_PLATFORM_DEPENDENT_LIBS ${X11_LIBRARIES} -lm)
 ENDIF(UNIX)
 
@@ -65,77 +34,214 @@ IF(APPLE)
   SET( FLTK_PLATFORM_DEPENDENT_LIBS  "-framework Carbon -framework Cocoa -framework ApplicationServices -lz")
 ENDIF(APPLE)
 
-# Make sure that the FLTK include path has been set
-# So the FLTK_LIBRARY does not appear the first time
+IF(CYGWIN)
+  SET( FLTK_PLATFORM_DEPENDENT_LIBS ole32 uuid comctl32 wsock32 supc++ -lm -lgdi32)
+ENDIF(CYGWIN)
+
+# If FLTK_INCLUDE_DIR is already defined we assigne its value to FLTK_DIR
 IF(FLTK_INCLUDE_DIR)
-  IF(FLTK_VERSION_1.0.11)
-      FIND_LIBRARY(FLTK_BASE_LIBRARY  NAMES fltk fltkd
-           PATHS /usr/lib /usr/local/lib
-           /usr/local/lib/fltk
-           /usr/local/fltk/lib
-           /usr/X11R6/lib ${FLTK_INCLUDE_DIR}/lib
-      )
-  ENDIF(FLTK_VERSION_1.0.11)
-  IF(FLTK_VERSION_1.1)
-    FIND_LIBRARY(FLTK_BASE_LIBRARY  NAMES fltk fltkd
-      PATHS /usr/lib /usr/local/lib /usr/local/fltk/lib
-      /usr/X11R6/lib  ${FLTK_INCLUDE_DIR}/lib
-    )
-    FIND_LIBRARY(FLTK_GL_LIBRARY NAMES fltkgl fltkgld fltk_gl
-      PATHS /usr/lib /usr/local/lib /usr/local/fltk/lib
-      /usr/X11R6/lib ${FLTK_INCLUDE_DIR}/lib
-    )
-    FIND_LIBRARY(FLTK_FORMS_LIBRARY NAMES fltkforms fltkformsd fltk_forms
-      PATHS /usr/lib /usr/local/lib /usr/local/fltk/lib
-      /usr/X11R6/lib  ${FLTK_INCLUDE_DIR}/lib
-    )
-    FIND_LIBRARY(FLTK_IMAGES_LIBRARY NAMES fltkimages fltkimagesd fltk_images
-      PATHS /usr/lib /usr/local/lib /usr/local/fltk/lib
-      /usr/X11R6/lib  ${FLTK_INCLUDE_DIR}/lib
-    )
-  ENDIF(FLTK_VERSION_1.1)
-  SET( FLTK_LIBRARIES 
-    ${FLTK_GL_LIBRARY}
-    ${FLTK_FORMS_LIBRARY}
-    ${FLTK_IMAGES_LIBRARY}
-    ${FLTK_BASE_LIBRARY}
-    ${FLTK_PLATFORM_DEPENDENT_LIBS}
-  )
+  SET(FLTK_DIR ${FLTK_INCLUDE_DIR})
 ENDIF(FLTK_INCLUDE_DIR)
-# Find Fluid
-FIND_PROGRAM(FLTK_FLUID_EXECUTABLE fluid
-  ${path} ${FLTK_INCLUDE_DIR}/fluid
-)
-
-#
-#  Set FLTK_FOUND
-#  This is the final flag that will be checked by
-#  other code that requires FLTK for compile/run.
-#
 
-IF(FLTK_FLUID_EXECUTABLE)
-  IF(FLTK_INCLUDE_DIR)
-    IF(FLTK_LIBRARIES)
 
-      # The fact that it is in the cache is deprecated.
-      SET (FLTK_FOUND 1 CACHE INTERNAL "FLTK library, headers and Fluid are available")
+# If FLTK has been built using CMake we try to find everything directly
+SET(FLTK_DIR_STRING "directory containing FLTKConfig.cmake.  This is either the root of the build tree, or PREFIX/lib/fltk for an installation.")
+
+# Search only if the location is not already known.
+IF(NOT FLTK_DIR)
+  # Get the system search path as a list.
+  IF(UNIX)
+    STRING(REGEX MATCHALL "[^:]+" FLTK_DIR_SEARCH1 "$ENV{PATH}")
+  ELSE(UNIX)
+    STRING(REGEX REPLACE "\\\\" "/" FLTK_DIR_SEARCH1 "$ENV{PATH}")
+  ENDIF(UNIX)
+  STRING(REGEX REPLACE "/;" ";" FLTK_DIR_SEARCH2 ${FLTK_DIR_SEARCH1})
+
+  # Construct a set of paths relative to the system search path.
+  SET(FLTK_DIR_SEARCH "")
+  FOREACH(dir ${FLTK_DIR_SEARCH2})
+    SET(FLTK_DIR_SEARCH ${FLTK_DIR_SEARCH} "${dir}/../lib/fltk")
+  ENDFOREACH(dir)
+
+  #
+  # Look for an installation or build tree.
+  #
+  FIND_PATH(FLTK_DIR FLTKConfig.cmake
+    # Look for an environment variable FLTK_DIR.
+    $ENV{FLTK_DIR}
+
+    # Look in places relative to the system executable search path.
+    ${FLTK_DIR_SEARCH}
+
+    # Look in standard UNIX install locations.
+    /usr/local/lib/fltk
+    /usr/lib/fltk
+    /usr/local/include
+    /usr/include
+    /usr/local/fltk
+    /usr/X11R6/include
+
+    # Read from the CMakeSetup registry entries.  It is likely that
+    # FLTK will have been recently built.
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild1]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild2]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild3]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild4]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild5]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild6]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild7]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild8]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild9]
+    [HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild10]
+
+    # Help the user find it if we cannot.
+    DOC "The ${FLTK_DIR_STRING}"
+    )
+ENDIF(NOT FLTK_DIR)
+
+# If FLTK was found, load the configuration file to get the rest of the
+# settings.
+IF(FLTK_DIR)
+
+  # Check if FLTK was built using CMake
+  IF(EXISTS ${FLTK_DIR}/FLTKConfig.cmake)
+    SET(FLTK_BUILT_WITH_CMAKE 1)
+  ENDIF(EXISTS ${FLTK_DIR}/FLTKConfig.cmake)
+
+  IF(FLTK_BUILT_WITH_CMAKE)
+    SET(FLTK_FOUND 1)
+    INCLUDE(${FLTK_DIR}/FLTKConfig.cmake)
+
+    # Fluid
+    IF(FLUID_COMMAND) 
+      SET(FLTK_FLUID_EXECUTABLE ${FLUID_COMMAND} CACHE FILEPATH "Fluid executable")
+    ELSE(FLUID_COMMAND) 
+      FIND_PROGRAM(FLTK_FLUID_EXECUTABLE fluid PATHS 
+        ${FLTK_EXECUTABLE_DIRS}
+        ${FLTK_EXECUTABLE_DIRS}/RelWithDebInfo
+        ${FLTK_EXECUTABLE_DIRS}/Debug
+        ${FLTK_EXECUTABLE_DIRS}/Release
+        NO_SYSTEM_PATH)
+    ENDIF(FLUID_COMMAND)
+    # MARK_AS_ADVANCED(FLTK_FLUID_EXECUTABLE)
+
+    SET(FLTK_INCLUDE_DIR ${FLTK_DIR})
+    LINK_DIRECTORIES(${FLTK_LIBRARY_DIRS})
+
+    SET(FLTK_BASE_LIBRARY fltk)
+    SET(FLTK_GL_LIBRARY fltk_gl)
+    SET(FLTK_FORMS_LIBRARY fltk_forms)
+    SET(FLTK_IMAGES_LIBRARY fltk_images)
+
+    # Add the extra libraries
+    LOAD_CACHE(${FLTK_DIR}
+      READ_WITH_PREFIX
+      FL FLTK_USE_SYSTEM_JPEG
+      FL FLTK_USE_SYSTEM_PNG
+      FL FLTK_USE_SYSTEM_ZLIB
+      )
 
-      # The following deprecated settings are for compatibility with CMake 1.4
-      SET (HAS_FLTK ${FLTK_FOUND})
-      SET (FLTK_INCLUDE_PATH ${FLTK_INCLUDE_DIR})
-      SET (FLTK_FLUID_EXE ${FLTK_FLUID_EXECUTABLE})
-      SET (FLTK_LIBRARY ${FLTK_LIBRARIES})
-    ENDIF(FLTK_LIBRARIES)
-  ENDIF(FLTK_INCLUDE_DIR)
-ENDIF(FLTK_FLUID_EXECUTABLE)
+    SET(FLTK_IMAGES_LIBS "")
+    IF(FLFLTK_USE_SYSTEM_JPEG)
+      SET(FLTK_IMAGES_LIBS ${FLTK_IMAGES_LIBS} fltk_jpeg)
+    ENDIF(FLFLTK_USE_SYSTEM_JPEG)
+    IF(FLFLTK_USE_SYSTEM_PNG)
+      SET(FLTK_IMAGES_LIBS ${FLTK_IMAGES_LIBS} fltk_png)
+    ENDIF(FLFLTK_USE_SYSTEM_PNG)
+    IF(FLFLTK_USE_SYSTEM_ZLIB)
+      SET(FLTK_IMAGES_LIBS ${FLTK_IMAGES_LIBS} fltk_zlib)
+    ENDIF(FLFLTK_USE_SYSTEM_ZLIB)
+    SET(FLTK_IMAGES_LIBS "${FLTK_IMAGES_LIBS}" CACHE INTERNAL
+      "Extra libraries for fltk_images library.")
+
+  ELSE(FLTK_BUILT_WITH_CMAKE)
+
+    # if FLTK was not built using CMake
+    # Find fluid executable.
+    FIND_PROGRAM(FLTK_FLUID_EXECUTABLE fluid ${FLTK_INCLUDE_DIR}/fluid)
+
+    # Use location of fluid to help find everything else.
+    SET(FLTK_INCLUDE_SEARCH_PATH "")
+    SET(FLTK_LIBRARY_SEARCH_PATH "")
+    IF(FLTK_FLUID_EXECUTABLE)
+      GET_FILENAME_COMPONENT(FLTK_BIN_DIR "${FLTK_FLUID_EXECUTABLE}" PATH)
+      SET(FLTK_INCLUDE_SEARCH_PATH ${FLTK_INCLUDE_SEARCH_PATH}
+        ${FLTK_BIN_DIR}/../include ${FLTK_BIN_DIR}/..)
+      SET(FLTK_LIBRARY_SEARCH_PATH ${FLTK_LIBRARY_SEARCH_PATH}
+        ${FLTK_BIN_DIR}/../lib)
+      SET(FLTK_WRAP_UI 1)
+    ENDIF(FLTK_FLUID_EXECUTABLE)
+
+    SET(FLTK_INCLUDE_SEARCH_PATH ${FLTK_INCLUDE_SEARCH_PATH}
+      /usr/local/include
+      /usr/include
+      /usr/local/fltk
+      /usr/X11R6/include
+      )
 
+    FIND_PATH(FLTK_INCLUDE_DIR FL/Fl.h ${FLTK_INCLUDE_SEARCH_PATH})
 
-IF (FLTK_FLUID_EXECUTABLE)   
-  SET ( FLTK_WRAP_UI 1 CACHE INTERNAL "Do we have the fluid executable" )   
-ENDIF (FLTK_FLUID_EXECUTABLE) 
+    SET(FLTK_LIBRARY_SEARCH_PATH ${FLTK_LIBRARY_SEARCH_PATH}
+      /usr/lib
+      /usr/local/lib
+      /usr/local/fltk/lib
+      /usr/X11R6/lib
+      ${FLTK_INCLUDE_DIR}/lib
+      )
 
-MARK_AS_ADVANCED(
-  FLTK_VERSION_1.0.11
-  FLTK_VERSION_1.1
-  FLTK_WRAP_UI
-)
+    FIND_LIBRARY(FLTK_BASE_LIBRARY NAMES fltk fltkd
+      PATHS ${FLTK_LIBRARY_SEARCH_PATH})
+    FIND_LIBRARY(FLTK_GL_LIBRARY NAMES fltkgl fltkgld fltk_gl
+      PATHS ${FLTK_LIBRARY_SEARCH_PATH})
+    FIND_LIBRARY(FLTK_FORMS_LIBRARY NAMES fltkforms fltkformsd fltk_forms
+      PATHS ${FLTK_LIBRARY_SEARCH_PATH})
+    FIND_LIBRARY(FLTK_IMAGES_LIBRARY NAMES fltkimages fltkimagesd fltk_images
+      PATHS ${FLTK_LIBRARY_SEARCH_PATH})
+
+    # Find the extra libraries needed for the fltk_images library.
+    IF(UNIX)
+      FIND_PROGRAM(FLTK_CONFIG_SCRIPT fltk-config PATHS ${FLTK_BIN_DIR})
+      IF(FLTK_CONFIG_SCRIPT)
+        EXEC_PROGRAM(${FLTK_CONFIG_SCRIPT} ARGS --use-images --ldflags
+          OUTPUT_VARIABLE FLTK_IMAGES_LDFLAGS)
+        SET(FLTK_LIBS_EXTRACT_REGEX ".*-lfltk_images (.*) -lfltk.*")
+        IF("${FLTK_IMAGES_LDFLAGS}" MATCHES "${FLTK_LIBS_EXTRACT_REGEX}")
+          STRING(REGEX REPLACE "${FLTK_LIBS_EXTRACT_REGEX}" "\\1"
+            FLTK_IMAGES_LIBS "${FLTK_IMAGES_LDFLAGS}")
+          STRING(REGEX REPLACE " +" ";" FLTK_IMAGES_LIBS "${FLTK_IMAGES_LIBS}")
+          # The EXEC_PROGRAM will not be inherited into subdirectories from
+          # the file that originally included this module.  Save the answer.
+          SET(FLTK_IMAGES_LIBS "${FLTK_IMAGES_LIBS}" CACHE INTERNAL
+            "Extra libraries for fltk_images library.")
+        ENDIF("${FLTK_IMAGES_LDFLAGS}" MATCHES "${FLTK_LIBS_EXTRACT_REGEX}")
+      ENDIF(FLTK_CONFIG_SCRIPT)
+    ENDIF(UNIX)
+
+  ENDIF(FLTK_BUILT_WITH_CMAKE)
+ENDIF(FLTK_DIR)
+
+
+SET(FLTK_FOUND 1)
+FOREACH(var FLTK_FLUID_EXECUTABLE FLTK_INCLUDE_DIR
+    FLTK_BASE_LIBRARY FLTK_GL_LIBRARY
+    FLTK_FORMS_LIBRARY FLTK_IMAGES_LIBRARY)
+  IF(NOT ${var})
+    SET(FLTK_FOUND 0)
+  ENDIF(NOT ${var})
+ENDFOREACH(var)
+
+IF(FLTK_FOUND)
+  SET(FLTK_LIBRARIES ${FLTK_IMAGES_LIBRARY} ${FLTK_IMAGES_LIBS} ${FLTK_BASE_LIBRARY} ${FLTK_GL_LIBRARY}
+    ${FLTK_FORMS_LIBRARY} )
+  IF(APPLE)
+    SET(FLTK_LIBRARIES ${FLTK_PLATFORM_DEPENDENT_LIBS} ${FLTK_LIBRARIES})
+  ELSE(APPLE)
+    SET(FLTK_LIBRARIES ${FLTK_LIBRARIES} ${FLTK_PLATFORM_DEPENDENT_LIBS})
+  ENDIF(APPLE)
+
+  # The following deprecated settings are for compatibility with CMake 1.4
+  SET (HAS_FLTK ${FLTK_FOUND})
+  SET (FLTK_INCLUDE_PATH ${FLTK_INCLUDE_DIR})
+  SET (FLTK_FLUID_EXE ${FLTK_FLUID_EXECUTABLE})
+  SET (FLTK_LIBRARY ${FLTK_LIBRARIES})
+ENDIF(FLTK_FOUND)