CMake magic to find PyQt4 and build the main GUI from .ui. Also renamed uhd_modes.py -> modes_rx, and the GUI app -> modes_gui

CMakeLists.txt

@@ -124,3 +124,4 @@ add_subdirectory(python)
 add_subdirectory(grc)
 add_subdirectory(apps)
 add_subdirectory(docs)
+add_subdirectory(res)

apps/CMakeLists.txt

@@ -21,6 +21,7 @@ include(GrPython)
 
 GR_PYTHON_INSTALL(
     PROGRAMS
-    uhd_modes.py
+    modes_rx
+    modes_gui
     DESTINATION bin
 )

apps/modes_gui

@@ -113,6 +113,7 @@ class mainwindow(QtGui.QMainWindow):
             self.output_handler = None
             self.fg.stop()
             self.runner = None
+            self.fg = None
             if self.kmlgen is not None:
                 self.kmlgen.done = True
                 #TODO FIXME need a way to kill kmlgen safely without delay

cmake/Modules/FindPyQt.py

@@ -0,0 +1,24 @@
+# Copyright (c) 2007, Simon Edwards <simon@simonzone.com>
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+import PyQt4.pyqtconfig
+
+pyqtcfg = PyQt4.pyqtconfig.Configuration()
+print("pyqt_version:%06.0x" % pyqtcfg.pyqt_version)
+print("pyqt_version_str:%s" % pyqtcfg.pyqt_version_str)
+
+pyqt_version_tag = ""
+in_t = False
+for item in pyqtcfg.pyqt_sip_flags.split(' '):
+    if item=="-t":
+        in_t = True
+    elif in_t:
+        if item.startswith("Qt_4"):
+            pyqt_version_tag = item
+    else:
+        in_t = False
+print("pyqt_version_tag:%s" % pyqt_version_tag)
+
+print("pyqt_sip_dir:%s" % pyqtcfg.pyqt_sip_dir)
+print("pyqt_sip_flags:%s" % pyqtcfg.pyqt_sip_flags)

cmake/Modules/FindPyQt4.cmake

@@ -0,0 +1,53 @@
+# Find PyQt4
+# ~~~~~~~~~~
+# Copyright (c) 2007-2008, Simon Edwards <simon@simonzone.com>
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+# PyQt4 website: http://www.riverbankcomputing.co.uk/pyqt/index.php
+#
+# Find the installed version of PyQt4. FindPyQt4 should only be called after
+# Python has been found.
+#
+# This file defines the following variables:
+#
+# PYQT4_VERSION - The version of PyQt4 found expressed as a 6 digit hex number
+#     suitable for comparision as a string
+#
+# PYQT4_VERSION_STR - The version of PyQt4 as a human readable string.
+#
+# PYQT4_VERSION_TAG - The PyQt version tag using by PyQt's sip files.
+#
+# PYQT4_SIP_DIR - The directory holding the PyQt4 .sip files.
+#
+# PYQT4_SIP_FLAGS - The SIP flags used to build PyQt.
+
+IF(EXISTS PYQT4_VERSION)
+  # Already in cache, be silent
+  SET(PYQT4_FOUND TRUE)
+ELSE(EXISTS PYQT4_VERSION)
+
+  FIND_FILE(_find_pyqt_py FindPyQt.py PATHS ${CMAKE_MODULE_PATH})
+
+  EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} ${_find_pyqt_py} OUTPUT_VARIABLE pyqt_config)
+  IF(pyqt_config)
+    STRING(REGEX REPLACE "^pyqt_version:([^\n]+).*$" "\\1" PYQT4_VERSION ${pyqt_config})
+    STRING(REGEX REPLACE ".*\npyqt_version_str:([^\n]+).*$" "\\1" PYQT4_VERSION_STR ${pyqt_config})
+    STRING(REGEX REPLACE ".*\npyqt_version_tag:([^\n]+).*$" "\\1" PYQT4_VERSION_TAG ${pyqt_config})
+    STRING(REGEX REPLACE ".*\npyqt_sip_dir:([^\n]+).*$" "\\1" PYQT4_SIP_DIR ${pyqt_config})
+    STRING(REGEX REPLACE ".*\npyqt_sip_flags:([^\n]+).*$" "\\1" PYQT4_SIP_FLAGS ${pyqt_config})
+
+    SET(PYQT4_FOUND TRUE)
+  ENDIF(pyqt_config)
+
+  IF(PYQT4_FOUND)
+    IF(NOT PYQT4_FIND_QUIETLY)
+      MESSAGE(STATUS "Found PyQt4 version: ${PYQT4_VERSION_STR}")
+    ENDIF(NOT PYQT4_FIND_QUIETLY)
+  ELSE(PYQT4_FOUND)
+    IF(PYQT4_FIND_REQUIRED)
+      MESSAGE(FATAL_ERROR "Could not find Python")
+    ENDIF(PYQT4_FIND_REQUIRED)
+  ENDIF(PYQT4_FOUND)
+
+ENDIF(EXISTS PYQT4_VERSION)

res/CMakeLists.txt

@@ -0,0 +1,64 @@
+# Copyright 2011 Free Software Foundation, Inc.
+# 
+# This file is part of GNU Radio
+# 
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+# 
+# GNU Radio 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 General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+
+########################################################################
+# Include python install macros
+########################################################################
+include(GrPython)
+if(NOT PYTHONINTERP_FOUND)
+    return()
+endif()
+
+find_package(PyQt4)
+if(NOT PYQT4_FOUND)
+    message(STATUS "PyQt4 not found, not installing GUI application")
+    return()
+endif()
+
+
+set(PYUIC4_COMPILE pyuic4)
+set(RX_UI_SRC ${CMAKE_CURRENT_SOURCE_DIR}/modes_rx.ui)
+set(RX_UI_PY ${CMAKE_CURRENT_BINARY_DIR}/modes_rx_ui.py)
+
+add_custom_target(rx_ui ALL
+    DEPENDS ${RX_UI_PY}
+)
+
+add_custom_command(OUTPUT ${RX_UI_PY}
+    COMMAND ${PYUIC4_COMPILE} ${RX_UI_SRC} > ${RX_UI_PY}
+    MAIN_DEPENDENCY ${RX_UI_SRC}
+)
+
+########################################################################
+# Install python sources
+########################################################################
+GR_PYTHON_INSTALL(
+    FILES
+    ${RX_UI_PY}
+    DESTINATION ${GR_PYTHON_DIR}/air_modes
+)
+
+########################################################################
+# Handle the unit tests
+########################################################################
+#include(GrTest)
+
+#set(GR_TEST_TARGET_DEPS gnuradio-gr-air-modes)
+#set(GR_TEST_PYTHON_DIRS ${CMAKE_BINARY_DIR}/swig)
+#GR_ADD_TEST(qa_gr-air-modes ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_gr-air-modes.py)