# - Locate FreeType library

# This module defines

#  FREETYPE_LIBRARIES, the library to link against

#  FREETYPE_FOUND, if false, do not try to link to FREETYPE

#  FREETYPE_INCLUDE_DIRS, where to find headers.

#  FREETYPE_VERSION_STRING, the version of freetype found (since CMake 2.8.8)

#  This is the concatenation of the paths:

#  FREETYPE_INCLUDE_DIR_ft2build

#  FREETYPE_INCLUDE_DIR_freetype2

#

# $FREETYPE_DIR is an environment variable that would

# correspond to the ./configure --prefix=$FREETYPE_DIR

# used in building FREETYPE.

#=============================================================================

# Copyright 2007-2009 Kitware, Inc.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions are

# met:

#

#  * Redistributions of source code must retain the above copyright notice,

#    this list of conditions and the following disclaimer.

# 

#  * Redistributions in binary form must reproduce the above copyright notice,

#    this list of conditions and the following disclaimer in the documentation

#    and/or other materials provided with the distribution.

# 

#  * The names of Kitware, Inc., the Insight Consortium, or the names of

#    any consortium members, or of any contributors, may not be used to

#    endorse or promote products derived from this software without

#    specific prior written permission.

# 

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''

# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR

# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Created by Eric Wing.

# Modifications by Alexander Neundorf.

# This file has been renamed to "FindFreetype.cmake" instead of the correct

# "FindFreeType.cmake" in order to be compatible with the one from KDE4, Alex.

# Ugh, FreeType seems to use some #include trickery which

# makes this harder than it should be. It looks like they

# put ft2build.h in a common/easier-to-find location which

# then contains a #include to a more specific header in a

# more specific location (#include <freetype/config/ftheader.h>).

# Then from there, they need to set a bunch of #define's

# so you can do something like:

# #include FT_FREETYPE_H

# Unfortunately, using CMake's mechanisms like include_directories()

# wants explicit full paths and this trickery doesn't work too well.

# I'm going to attempt to cut out the middleman and hope

# everything still works.

find_path(FREETYPE_INCLUDE_DIR_ft2build ft2build.h

  HINTS

    ENV FREETYPE_DIR

  PATHS

    /usr/local/X11R6

    /usr/local/X11

    /usr/freeware

  PATH_SUFFIXES include/freetype2 include

)

find_path(FREETYPE_INCLUDE_DIR_freetype2 config/ftheader.h

  HINTS

    ENV FREETYPE_DIR

  PATHS

    /usr/local/X11R6

    /usr/local/X11

    /usr/freeware

  PATH_SUFFIXES include/freetype2 include

)

find_library(FREETYPE_LIBRARY

  NAMES freetype libfreetype freetype219 freetype_a

  HINTS

    ENV FREETYPE_DIR

  PATH_SUFFIXES lib

  PATHS

  /usr/local/X11R6

  /usr/local/X11

  /usr/freeware

)

# set the user variables

if(FREETYPE_INCLUDE_DIR_ft2build AND FREETYPE_INCLUDE_DIR_freetype2)

  set(FREETYPE_INCLUDE_DIRS "${FREETYPE_INCLUDE_DIR_ft2build};${FREETYPE_INCLUDE_DIR_freetype2}")

endif()

set(FREETYPE_LIBRARIES "${FREETYPE_LIBRARY}")

if(FREETYPE_INCLUDE_DIR_freetype2 AND EXISTS "${FREETYPE_INCLUDE_DIR_freetype2}/freetype/freetype.h")

    file(STRINGS "${FREETYPE_INCLUDE_DIR_freetype2}/freetype/freetype.h" freetype_version_str

         REGEX "^#[\t ]*define[\t ]+FREETYPE_(MAJOR|MINOR|PATCH)[\t ]+[0-9]+$")

    unset(FREETYPE_VERSION_STRING)

    foreach(VPART MAJOR MINOR PATCH)

        foreach(VLINE ${freetype_version_str})

            if(VLINE MATCHES "^#[\t ]*define[\t ]+FREETYPE_${VPART}")

                string(REGEX REPLACE "^#[\t ]*define[\t ]+FREETYPE_${VPART}[\t ]+([0-9]+)$" "\\1"

                       FREETYPE_VERSION_PART "${VLINE}")

                if(FREETYPE_VERSION_STRING)

                    set(FREETYPE_VERSION_STRING "${FREETYPE_VERSION_STRING}.${FREETYPE_VERSION_PART}")

                else()

                    set(FREETYPE_VERSION_STRING "${FREETYPE_VERSION_PART}")

                endif()

                unset(FREETYPE_VERSION_PART)

            endif()

        endforeach()

    endforeach()

endif()

# handle the QUIETLY and REQUIRED arguments and set FREETYPE_FOUND to TRUE if

# all listed variables are TRUE

include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)

FIND_PACKAGE_HANDLE_STANDARD_ARGS(Freetype

                                  REQUIRED_VARS FREETYPE_LIBRARY FREETYPE_INCLUDE_DIRS

                                  VERSION_VAR FREETYPE_VERSION_STRING)

mark_as_advanced(FREETYPE_LIBRARY FREETYPE_INCLUDE_DIR_freetype2 FREETYPE_INCLUDE_DIR_ft2build)