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# cmake/modules/qt.cmake
#
# Copyright (C) 2009 Alan W. Irwin
#
# This file is part of PLplot.
#
# PLplot is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; version 2 of the License.
#
# PLplot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public License
# along with the file PLplot; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Module for determining all configuration variables related to the qt
# device driver, the plplotqt library, and the plplot_pyqt4 Python extension
# module.
# The following variables are set/modified:
# PLD_bmpqt - ON means the bmpqt device is enabled.
# PLD_jpgqt - ON means the jpgqt device is enabled.
# PLD_pngqt - ON means the pngqt device is enabled.
# PLD_ppmqt - ON means the ppmqt device is enabled.
# PLD_tiffqt - ON means the tiffqt device is enabled.
# PLD_epsqt - ON means the epsqt device is enabled.
# PLD_pdfqt - ON means the pdfqt device is enabled.
# PLD_qtwidget - ON means the qtwidget device is enabled.
# PLD_svgqt - ON means the svgqt device is enabled.
# PLD_extqt - ON means the extqt device is enabled.
# PLD_memqt - ON means the memqt device is enabled.
# pc_qt_COMPILE_FLAGS - Space-separated Qt4-related COMPILE_FLAGS required
# for the pkg-config configuration case
# where "include(${QT_USE_FILE})" has no effect.
# qt_COMPILE_FLAGS - empty. Use "include(${QT_USE_FILE})" instead
# (but only in directories where it is needed).
# qt_LINK_FLAGS - empty. Use "include(${QT_USE_FILE})" instead
# (but only in directories where it is needed).
# That command defines QT_LIBRARIES which should
# be used instead of the (now empty) qt_LINK_FLAGS.
# qt_TARGETS - list of targets which the qt dynamic device
# depends on.
# qt_RPATH - RPATH directory list for qt device driver.
# DRIVERS_LINK_FLAGS - list of device LINK_FLAGS for case when
# ENABLE_DYNDRIVERS OFF. (qt_TARGETS not included
# since source code used instead of this target
# for ENABLE_DYNDRIVERS OFF.)
# qt_SOURCE - list of source files to be appended to qt.cpp.
# ENABLE_qt - ON means the plplot_qt library is enabled.
# ENABLE_pyqt4 - ON means the plplot_pyqt4 Python extension module
# is enabled.
# SIP_EXECUTABLE - full path for sip
# PYQT_SIP_DIR - sip system directory
# PYQT_SIP_FLAGS - sip command flags
if(PLD_bmpqt OR PLD_jpgqt OR PLD_pngqt OR PLD_ppmqt OR PLD_tiffqt OR PLD_epsqt OR PLD_pdfqt OR PLD_qtwidget OR PLD_svgqt OR PLD_extqt OR PLD_memqt)
set(ANY_QT_DEVICE ON)
endif(PLD_bmpqt OR PLD_jpgqt OR PLD_pngqt OR PLD_ppmqt OR PLD_tiffqt OR PLD_epsqt OR PLD_pdfqt OR PLD_qtwidget OR PLD_svgqt OR PLD_extqt OR PLD_memqt)
if(ANY_QT_DEVICE)
if(NOT CMAKE_CXX_COMPILER_WORKS)
message(STATUS "WARNING: no working C++ compiler so "
"disabling all qt devices."
)
set(ANY_QT_DEVICE OFF)
endif(NOT CMAKE_CXX_COMPILER_WORKS)
endif(ANY_QT_DEVICE)
if(DEFAULT_NO_BINDINGS)
option(ENABLE_qt "Enable Qt bindings" OFF)
option(ENABLE_pyqt4 "Enable pyqt4 Python extension module" OFF)
else(DEFAULT_NO_BINDINGS)
option(ENABLE_qt "Enable Qt bindings" ON)
option(ENABLE_pyqt4 "Enable pyqt4 Python extension module" ON)
endif(DEFAULT_NO_BINDINGS)
# ENABLE_qt depends on PLD_extqt
if(NOT ANY_QT_DEVICE)
set(PLD_extqt OFF CACHE BOOL "Enable Qt ext device" FORCE)
endif(NOT ANY_QT_DEVICE)
if(ENABLE_qt AND NOT PLD_extqt)
message(STATUS
"WARNING: PLD_extqt is OFF so "
"setting ENABLE_qt to OFF."
)
set(ENABLE_qt OFF CACHE BOOL "Enable Qt bindings" FORCE)
endif(ENABLE_qt AND NOT PLD_extqt)
if(ENABLE_qt)
# Use a minimum version corresponding to the version installed by
# Debian Wheezy. I assume all other non-enterprise Linux distros,
# Mac OS X, and Windows platforms also give access to this version
# of Qt4 or later.
find_package(Qt4 4.8.2 COMPONENTS QtCore QtGui QtSvg)
# QT4_FOUND is defined to be true or false by find_package(Qt4 ...)
if(QT4_FOUND)
# Do not include(${QT_USE_FILE}) here because it contaminates ALL
# compile properties with Qt flags from (this) top-level directory
# on down. Use this alternative instead which includes a function
# set_qt_target_properties which should be called with the
# appropriate target argument whenever a Qt4-related target is built.
include(ndp_UseQt4)
# QT_COMPILE_DEFINITIONS (used only for pc_qt_COMPILE_FLAGS below),
# QT_INCLUDE_DIRECTORIES (used only for pc_qt_COMPILE_FLAGS below),
# NP_COMPILE_DEFINITIONS (used only in set_qt_properties function),
# NP_QT_INCLUDE_DIRECTORIES (used only in set_qt_properties function), and
# QT_LIBRARIES (used wherever link with qt libraries is needed)
# are now defined.
# Only used for pkg-config case.
set(pc_qt_COMPILE_FLAGS ${QT_COMPILE_DEFINES} ${QT_INCLUDE_DIRECTORIES})
string(REGEX REPLACE ";" " " pc_qt_COMPILE_FLAGS "${pc_qt_COMPILE_FLAGS}")
# Work around pkg-config issues (see bug report
# <https://bugs.freedesktop.org/show_bug.cgi?id=72584>) with
# multiple -isystem tags by replacing them with "-I"
string(REGEX REPLACE "-isystem " "-I" pc_qt_COMPILE_FLAGS "${pc_qt_COMPILE_FLAGS}")
message(STATUS "pc_qt_COMPILE_FLAGS = ${pc_qt_COMPILE_FLAGS}")
# These two must be explicitly empty since other alternative means
# are used.
set(qt_COMPILE_FLAGS)
set(qt_LINK_FLAGS)
# ${QT_LIBRARY_DIR} defined by above find_package(Qt4 ...) call.
set(qt_RPATH ${QT_LIBRARY_DIR})
filter_rpath(qt_RPATH)
#message("qt_LIBRARY_DIR = ${qt_LIBRARY_DIR}")
else(QT4_FOUND)
message(STATUS "WARNING: Suitable Qt4 development environment not found so disabling Qt bindings."
)
set(ENABLE_qt OFF CACHE BOOL "Enable Qt bindings" FORCE)
endif(QT4_FOUND)
endif(ENABLE_qt)
# All qt devices depend on ENABLE_qt
if(NOT ENABLE_qt)
message(STATUS
"WARNING: ENABLE_qt is OFF so "
"setting all qt devices to OFF."
)
set(ANY_QT_DEVICE OFF)
endif(NOT ENABLE_qt)
if(NOT ANY_QT_DEVICE)
set(PLD_bmpqt OFF CACHE BOOL "Enable Qt Windows bmp device" FORCE)
set(PLD_jpgqt OFF CACHE BOOL "Enable Qt jpg device" FORCE)
set(PLD_pngqt OFF CACHE BOOL "Enable Qt png device" FORCE)
set(PLD_ppmqt OFF CACHE BOOL "Enable Qt ppm device" FORCE)
set(PLD_tiffqt OFF CACHE BOOL "Enable Qt tiff device" FORCE)
set(PLD_epsqt OFF CACHE BOOL "Enable Qt EPS device" FORCE)
set(PLD_pdfqt OFF CACHE BOOL "Enable Qt PDF device" FORCE)
set(PLD_qtwidget OFF CACHE BOOL "Enable Qt interactive device" FORCE)
set(PLD_svgqt OFF CACHE BOOL "Enable Qt SVG device" FORCE)
set(PLD_extqt OFF CACHE BOOL "Enable Qt ext device" FORCE)
set(PLD_memqt OFF CACHE BOOL "Enable Qt mem device" FORCE)
endif(NOT ANY_QT_DEVICE)
if(ENABLE_pyqt4 AND NOT ENABLE_python)
message(STATUS
"WARNING: ENABLE_python is OFF so "
"setting ENABLE_pyqt4 to OFF."
)
set(ENABLE_pyqt4 OFF CACHE BOOL "Enable pyqt4 Python extension module " FORCE)
endif(ENABLE_pyqt4 AND NOT ENABLE_python)
if(ENABLE_pyqt4 AND NOT ENABLE_qt)
message(STATUS
"WARNING: ENABLE_qt is OFF so "
"setting ENABLE_pyqt4 to OFF."
)
set(ENABLE_pyqt4 OFF CACHE BOOL "Enable pyqt4 Python extension module " FORCE)
endif(ENABLE_pyqt4 AND NOT ENABLE_qt)
if(ENABLE_qt)
set(qt_gui_true "")
else(ENABLE_qt)
set(qt_gui_true "#")
endif(ENABLE_qt)
if(ANY_QT_DEVICE)
if(ENABLE_DYNDRIVERS)
if(ENABLE_qt)
set(qt_SOURCE)
set(qt_TARGETS plplotqt${LIB_TAG})
else(ENABLE_qt)
# if qt disabled, then must include full source and forget
# qt_TARGETS for this dynamic device.
set(qt_SOURCE ${CMAKE_SOURCE_DIR}/bindings/qt_gui/plqt.cpp)
endif(ENABLE_qt)
else(ENABLE_DYNDRIVERS)
# N.B. no qt_TARGETS here since use appropriate source code (see below)
# instead to break circular linking.
set(DRIVERS_LINK_FLAGS ${DRIVERS_LINK_FLAGS} ${qt_LINK_FLAGS})
set(qt_SOURCE ${CMAKE_SOURCE_DIR}/bindings/qt_gui/plqt.cpp)
endif(ENABLE_DYNDRIVERS)
endif(ANY_QT_DEVICE)
if(ENABLE_pyqt4)
find_program(SIP_EXECUTABLE sip)
if(NOT SIP_EXECUTABLE)
message(STATUS
"WARNING: sip not found so setting ENABLE_pyqt4 to OFF."
)
set(ENABLE_pyqt4 OFF CACHE BOOL "Enable pyqt4 Python extension module " FORCE)
endif(NOT SIP_EXECUTABLE)
endif(ENABLE_pyqt4)
if(ENABLE_pyqt4)
execute_process(
COMMAND ${PYTHON_EXECUTABLE} -c "from PyQt4 import pyqtconfig; print pyqtconfig.Configuration().pyqt_sip_dir"
OUTPUT_VARIABLE PYQT_SIP_DIR
RESULT_VARIABLE PYQT_SIP_DIR_ERR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(PYQT_SIP_DIR_ERR)
message(STATUS
"WARNING: could not find sip directory so setting ENABLE_pyqt4 to OFF."
)
set(ENABLE_pyqt4 OFF CACHE BOOL "Enable pyqt4 Python extension module " FORCE)
endif(PYQT_SIP_DIR_ERR)
endif(ENABLE_pyqt4)
if(ENABLE_pyqt4)
execute_process(
COMMAND ${PYTHON_EXECUTABLE} -c "from PyQt4 import pyqtconfig; print pyqtconfig.Configuration().pyqt_sip_flags"
OUTPUT_VARIABLE PYQT_SIP_FLAGS
RESULT_VARIABLE PYQT_SIP_FLAGS_ERR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(PYQT_SIP_FLAGS_ERR)
message(STATUS
"WARNING: could not find sip flags so setting ENABLE_pyqt4 to OFF."
)
set(ENABLE_pyqt4 OFF CACHE BOOL "Enable pyqt4 Python extension module " FORCE)
endif(PYQT_SIP_FLAGS_ERR)
# Must change from blank-delimited string to CMake list so that sip
# COMMAND will work properly with these flags later on.
string(REGEX REPLACE " " ";" PYQT_SIP_FLAGS "${PYQT_SIP_FLAGS}")
endif(ENABLE_pyqt4)
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