# - Try to find the Qwt includes and library
# which defines
#
# QWT_FOUND - system has Qwt
# QWT_INCLUDE_DIR - where to find qwt.h
# QWT_LIBRARIES - the libraries to link against to use Qwt
# QWT_LIBRARY - where to find the Qwt library (not for general use)

# copyright (c) 2006 Thomas Moenicke thomas.moenicke@kdemail.net
#
# Redistribution and use is allowed according to the terms of the BSD license.

IF(NOT QT4_FOUND)
    INCLUDE(FindQt4)
ENDIF(NOT QT4_FOUND)

SET(QWT_FOUND "NO")

IF(QT4_FOUND)
   FIND_PATH(QWT_INCLUDE_DIR qwt.h
       /usr/local/qwt/include
       /usr/local/include
       /usr/include/qwt
       /usr/include/qwt-qt4
       /usr/include/qwt5
       /usr/include
       $ENV{QWT_DIR}/include
       $ENV{QWT_DIR}/src
       $ENV{QWTDIR}/include
       $ENV{QWTDIR}/src
       $ENV{QWT_ROOT}/include
       $ENV{QWT_ROOT}/src
       $ENV{QWTROOT}/include
       $ENV{QWTROOT}/src
    )

    SET(POTENTIAL_LIBRARY_PATHS /usr/local/qwt/lib /usr/local/lib /usr/lib
	                            $ENV{QWT_DIR}/lib $ENV{QWTDIR}/lib $ENV{QWT_ROOT}/lib $ENV{QWTROOT}/lib)
								
    SET(QWT_NAMES ${QWT_NAMES} qwt qwt-qt4 qwt5 )
    FIND_LIBRARY(QWT_LIBRARY
        NAMES ${QWT_NAMES}
        PATHS ${POTENTIAL_LIBRARY_PATHS}
    )
    MARK_AS_ADVANCED(QWT_LIBRARY)
	
    IF (QWT_LIBRARY)

	    IF(WIN32 AND NOT CYGWIN)
		
		   SET(QWT_NAMES_DEBUG qwtd qwtd-qt4 qwtd5 )
           FIND_LIBRARY(QWT_LIBRARY_DEBUG
               NAMES ${QWT_NAMES_DEBUG}
               PATHS ${POTENTIAL_LIBRARY_PATHS}
            )
	        MARK_AS_ADVANCED(QWT_LIBRARY_DEBUG)
			
	        IF(QWT_LIBRARY_DEBUG)
			    SET(QWT_LIBRARIES optimized ${QWT_LIBRARY} debug ${QWT_LIBRARY_DEBUG} CACHE DOC "QWT library files")
			ELSE(QWT_LIBRARY_DEBUG)
			    SET(QWT_LIBRARIES ${QWT_LIBRARY} CACHE DOC "QWT library files")
			ENDIF(QWT_LIBRARY_DEBUG)
			
	    ELSE(WIN32 AND NOT CYGWIN)
		
		    SET(QWT_LIBRARIES ${QWT_LIBRARY} CACHE DOC "QWT library files")
			
		ENDIF(WIN32 AND NOT CYGWIN)
		
        SET(QWT_FOUND "YES")

        IF (CYGWIN)
            IF(BUILD_SHARED_LIBS)
            # No need to define QWT_USE_DLL here, because it's default for Cygwin.
            ELSE(BUILD_SHARED_LIBS)
            SET (QWT_DEFINITIONS -DQWT_STATIC)
            ENDIF(BUILD_SHARED_LIBS)
        ENDIF (CYGWIN)

    ENDIF (QWT_LIBRARY)
ENDIF(QT4_FOUND)

IF (QWT_FOUND)
  IF (NOT QWT_FIND_QUIETLY)
    MESSAGE(STATUS "Found Qwt: ${QWT_LIBRARIES}")
  ENDIF (NOT QWT_FIND_QUIETLY)
ELSE (QWT_FOUND)
  IF (QWT_FIND_REQUIRED)
    MESSAGE(FATAL_ERROR "Could not find Qwt library")
  ENDIF (QWT_FIND_REQUIRED)
ENDIF (QWT_FOUND)

MARK_AS_ADVANCED(QWT_INCLUDE_DIR QWT_LIBRARY)