def __init__(self, parent=None, name="parameter_widget"):

        QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name)

        # Properties ----------------------------------------------------------

        # Signals ------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QWidget(self)
        self._data_path_widget = DataPathWidget(_dc_parameters_widget)
        self._acq_widget = AcquisitionWidget(_dc_parameters_widget,
                                             layout='horizontal')
        self._processing_widget = ProcessingWidget(_dc_parameters_widget)

        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QVBoxLayout(_dc_parameters_widget)
        _dc_parameters_widget_layout.addWidget(self._data_path_widget)
        _dc_parameters_widget_layout.addWidget(self._acq_widget)
        _dc_parameters_widget_layout.addWidget(self._processing_widget)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(10)

        _main_hlayout = QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.setSpacing(2)
        _main_hlayout.addStretch(0)

        # SizePolicies --------------------------------------------------------

        # Qt signal/slot connections ------------------------------------------
        self._data_path_widget.data_path_layout.prefix_ledit.textChanged.\
             connect(self._prefix_ledit_change)
        self._data_path_widget.data_path_layout.run_number_ledit.textChanged.\
             connect(self._run_number_ledit_change)
        self._acq_widget.madEnergySelectedSignal.\
             connect(self.mad_energy_selected)
        self._acq_widget.acqParametersChangedSignal.\
             connect(self.acq_parameters_changed)
    def __init__(self, parent = None, name = "parameter_widget"):

        QtGui.QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name) 

        # Properties ----------------------------------------------------------

        # Signals ------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QtGui.QWidget(self)
        self._data_path_widget = DataPathWidget(_dc_parameters_widget)
        self._acq_widget = AcquisitionWidget(_dc_parameters_widget, 
                                            layout = 'horizontal')
        self._processing_widget = ProcessingWidget(_dc_parameters_widget)
        
        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QtGui.QVBoxLayout(_dc_parameters_widget)
        _dc_parameters_widget_layout.addWidget(self._data_path_widget)
        _dc_parameters_widget_layout.addWidget(self._acq_widget)
        _dc_parameters_widget_layout.addWidget(self._processing_widget)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(10)

        _main_hlayout = QtGui.QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.setSpacing(2)
        _main_hlayout.addStretch(0)

        # SizePolicies --------------------------------------------------------
        

        # Qt signal/slot connections ------------------------------------------
        self._data_path_widget.data_path_layout.prefix_ledit.textChanged.\
             connect(self._prefix_ledit_change)
        self._data_path_widget.data_path_layout.run_number_ledit.textChanged.\
             connect(self._run_number_ledit_change)
        self._acq_widget.madEnergySelectedSignal.\
             connect(self.mad_energy_selected)
        self._acq_widget.acqParametersChangedSignal.\
             connect(self.acq_parameters_changed)
Esempio n. 3
0
class DCParametersWidget(QtGui.QWidget):
    def __init__(self, parent = None, name = "parameter_widget"):

        QtGui.QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name) 

        # Properties ----------------------------------------------------------

        # Signals ------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QtGui.QWidget(self)
        self._data_path_widget = DataPathWidget(_dc_parameters_widget)
        self._acq_widget = AcquisitionWidget(_dc_parameters_widget, 
                                            layout = 'horizontal')
        #self._acq_widget.setFixedHeight(170)
        self._processing_widget = ProcessingWidget(_dc_parameters_widget)
        _snapshot_widget = QtGui.QWidget(self)
        self.position_widget = uic.loadUi(os.path.join(os.path.dirname(__file__),
                                          'ui_files/Qt4_snapshot_widget_layout.ui'))
        
        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QtGui.QVBoxLayout(_dc_parameters_widget)
        _dc_parameters_widget_layout.addWidget(self._data_path_widget)
        _dc_parameters_widget_layout.addWidget(self._acq_widget)
        _dc_parameters_widget_layout.addWidget(self._processing_widget)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(0)

        _snapshots_vlayout = QtGui.QVBoxLayout(_snapshot_widget)
        _snapshots_vlayout.addWidget(self.position_widget)
        _snapshots_vlayout.setContentsMargins(0, 0, 0, 0)
        _snapshots_vlayout.setSpacing(2)
        _snapshots_vlayout.addStretch(10)

        _main_hlayout = QtGui.QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.addWidget(_snapshot_widget)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.setSpacing(2)
        _main_hlayout.addStretch(0)

        # SizePolicies --------------------------------------------------------
        

        # Qt signal/slot connections ------------------------------------------
        self._data_path_widget.data_path_layout.prefix_ledit.textChanged.connect(
                     self._prefix_ledit_change)
        self._data_path_widget.data_path_layout.run_number_ledit.textChanged.connect( 
                     self._run_number_ledit_change)
        self._acq_widget.madEnergySelectedSignal.connect(self.mad_energy_selected)
        self._acq_widget.acqParametersChangedSignal.connect(\
             self.acq_parameters_changed)

        # Other ---------------------------------------------------------------

    def set_beamline_setup(self, bl_setup):
        self._acq_widget.set_beamline_setup(bl_setup)
        self._beamline_setup_hwobj = bl_setup

    def _prefix_ledit_change(self, new_value):
        prefix = self._data_collection.acquisitions[0].\
                 path_template.get_prefix()
        self._data_collection.set_name(prefix)
        self._tree_view_item.setText(0, self._data_collection.get_name())

    def _run_number_ledit_change(self, new_value):
        if str(new_value).isdigit():
            self._data_collection.set_number(int(new_value))
            self._tree_view_item.setText(0, self._data_collection.get_name())

    def acq_parameters_changed(self):
        if self._tree_view_item is None:
            #TODO fix this
            return 
        dc_tree_widget = self._tree_view_item.listView().parent()
        dc_tree_widget.check_for_path_collisions()
        path_template = self._data_collection.acquisitions[0].path_template
        path_conflict = self.queue_model_hwobj.\
                        check_for_path_collisions(path_template)
        if new_value != '':
            if path_conflict:
                logging.getLogger("user_level_log").\
                    error('The current path settings will overwrite data' +\
                          ' from another task. Correct the problem before collecting')

                widget.setPaletteBackgroundColor(widget_colors.LIGHT_RED)
            else:
                widget.setPaletteBackgroundColor(widget_colors.WHITE)

    def __add_data_collection(self):
        return self.add_dc_cb(self._data_collection, self.collection_type)
    
    def mad_energy_selected(self, name, energy, state):
        path_template = self._data_collection.acquisitions[0].path_template

        if state:
            path_template.mad_prefix = name
        else:
            path_template.mad_prefix = ''

        run_number = self._beamline_setup_hwobj.queue_model_hwobj.\
          get_next_run_number(path_template)

        self._data_path_widget.set_run_number(run_number)
        self._data_path_widget.set_prefix(path_template.base_prefix)
        model = self._tree_view_item.get_model()
        model.set_name(path_template.get_prefix())
        self._tree_view_item.setText(0, model.get_name())
        
    def tab_changed(self):
        if self._tree_view_item:
            self.populate_parameter_widget(self._tree_view_item)

    def set_enabled(self, state):
        self._acq_widget.setEnabled(state)
        self._data_path_widget.setEnabled(state)
        self._processing_widget.setEnabled(state)

    def populate_widget(self, item):
        data_collection = item.get_model()
        self._tree_view_item = item
        self._data_collection = data_collection
        self._acquisition_mib = DataModelInputBinder(self._data_collection.\
                                                         acquisitions[0].acquisition_parameters)

        # The acq_widget sends a signal to the path_widget, and it relies
        # on that both models upto date, we need to refactor this part
        # so that both models are set before taking ceratin actions.
        # This workaround, works for the time beeing.
        self._data_path_widget._data_model = data_collection.acquisitions[0].path_template

        self._acq_widget.set_energies(data_collection.crystal.energy_scan_result)
        self._acq_widget.update_data_model(data_collection.acquisitions[0].\
                                          acquisition_parameters,
                                          data_collection.acquisitions[0].\
                                          path_template)
        self._data_path_widget.update_data_model(data_collection.\
                                           acquisitions[0].path_template)
        
        self._processing_widget.update_data_model(data_collection.\
                                                 processing_parameters)

        if data_collection.acquisitions[0].acquisition_parameters.\
                centred_position.snapshot_image:
            image = data_collection.acquisitions[0].\
                acquisition_parameters.centred_position.snapshot_image
            ration = image.height() / float(image.width())
            image = image.scaled(400, 400 * ration, QtCore.Qt.KeepAspectRatio)
            self.position_widget.svideo.setPixmap(QtGui.QPixmap(image))

        invalid = self._acquisition_mib.validate_all()

        if invalid:
            msg = "This data collection has one or more incorrect parameters,"+\
                " correct the fields marked in red to solve the problem."

            logging.getLogger("user_level_log").\
                warning(msg)
Esempio n. 4
0
    def __init__(self, parent = None, name = "parameter_widget"):

        QtGui.QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name) 

        # Properties ----------------------------------------------------------

        # Signals ------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QtGui.QWidget(self)
        self.caution_pixmap = Qt4_Icons.load("Caution2.png")
        self.path_widget = DataPathWidget(_dc_parameters_widget)
        self.acq_widget = AcquisitionWidget(_dc_parameters_widget, 
                                            layout = 'horizontal')
        #self.acq_widget.setFixedHeight(170)
        self.processing_widget = ProcessingWidget(_dc_parameters_widget)
        self.position_widget = uic.loadUi(os.path.join(os.path.dirname(__file__),
                                          'ui_files/Qt4_snapshot_widget_layout.ui'))
        #self.position_widget.setMinimumSize(310, 210)
        
        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QtGui.QVBoxLayout(self)
        _dc_parameters_widget_layout.addWidget(self.path_widget)
        _dc_parameters_widget_layout.addWidget(self.acq_widget)
        _dc_parameters_widget_layout.addWidget(self.processing_widget)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(0)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget.setLayout(_dc_parameters_widget_layout)

        _main_hlayout = QtGui.QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.addWidget(self.position_widget)
        _main_hlayout.setSpacing(2)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.addStretch(0)
        self.setLayout(_main_hlayout)

        # SizePolicies --------------------------------------------------------
        

        # Qt signal/slot connections ------------------------------------------
        self.path_widget.data_path_layout.prefix_ledit.textChanged.connect(
                     self._prefix_ledit_change)
        self.path_widget.data_path_layout.run_number_ledit.textChanged.connect( 
                     self._run_number_ledit_change)
        self.connect(self.acq_widget, QtCore.SIGNAL('mad_energy_selected'),
                     self.mad_energy_selected)
        self.connect(self.acq_widget,
                     QtCore.SIGNAL("path_template_changed"),
                     self.handle_path_conflict)

        #QtCore.QObject.connect(QtGui.QApplication, QtCore.SIGNAL('tab_changed'),
        #                       self.tab_changed)

        # Other ---------------------------------------------------------------
        Qt4_widget_colors.set_widget_color(self.path_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.acq_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.processing_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.position_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
class DCParametersWidget(QWidget):
    def __init__(self, parent=None, name="parameter_widget"):

        QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name)

        # Properties ----------------------------------------------------------

        # Signals ------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QWidget(self)
        self._data_path_widget = DataPathWidget(_dc_parameters_widget)
        self._acq_widget = AcquisitionWidget(_dc_parameters_widget,
                                             layout='horizontal')
        self._processing_widget = ProcessingWidget(_dc_parameters_widget)

        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QVBoxLayout(_dc_parameters_widget)
        _dc_parameters_widget_layout.addWidget(self._data_path_widget)
        _dc_parameters_widget_layout.addWidget(self._acq_widget)
        _dc_parameters_widget_layout.addWidget(self._processing_widget)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(10)

        _main_hlayout = QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.setSpacing(2)
        _main_hlayout.addStretch(0)

        # SizePolicies --------------------------------------------------------

        # Qt signal/slot connections ------------------------------------------
        self._data_path_widget.data_path_layout.prefix_ledit.textChanged.\
             connect(self._prefix_ledit_change)
        self._data_path_widget.data_path_layout.run_number_ledit.textChanged.\
             connect(self._run_number_ledit_change)
        self._acq_widget.madEnergySelectedSignal.\
             connect(self.mad_energy_selected)
        self._acq_widget.acqParametersChangedSignal.\
             connect(self.acq_parameters_changed)

        # Other ---------------------------------------------------------------

    def set_beamline_setup(self, bl_setup):
        self._acq_widget.set_beamline_setup(bl_setup)
        self._beamline_setup_hwobj = bl_setup

    def _prefix_ledit_change(self, new_value):
        prefix = self._data_collection.acquisitions[0].\
                 path_template.get_prefix()
        self._data_collection.set_name(prefix)
        self._tree_view_item.setText(0, self._data_collection.get_name())

    def _run_number_ledit_change(self, new_value):
        if str(new_value).isdigit():
            self._data_collection.set_number(int(new_value))
            self._tree_view_item.setText(0, self._data_collection.get_name())

    def acq_parameters_changed(self):
        if self._tree_view_item is None:
            #TODO fix this
            return

        #TODO  get tree view in another way
        dc_tree_widget = self._tree_view_item.listView().parent().parent()
        dc_tree_widget.check_for_path_collisions()
        path_template = self._data_collection.acquisitions[0].path_template
        path_conflict = self.queue_model_hwobj.\
                        check_for_path_collisions(path_template)

    def __add_data_collection(self):
        return self.add_dc_cb(self._data_collection, self.collection_type)

    def mad_energy_selected(self, name, energy, state):
        path_template = self._data_collection.acquisitions[0].path_template

        if state:
            path_template.mad_prefix = str(name)
        else:
            path_template.mad_prefix = ''

        run_number = self._beamline_setup_hwobj.queue_model_hwobj.\
          get_next_run_number(path_template)

        self._data_path_widget.set_run_number(run_number)
        self._data_path_widget.set_prefix(path_template.base_prefix)
        model = self._tree_view_item.get_model()
        model.set_name(path_template.get_prefix())
        self._tree_view_item.setText(0, model.get_name())

    def tab_changed(self):
        if self._tree_view_item:
            self.populate_parameter_widget(self._tree_view_item)

    def set_enabled(self, state):
        self._acq_widget.setEnabled(state)
        self._data_path_widget.setEnabled(state)
        self._processing_widget.setEnabled(state)

    def populate_widget(self, item):
        data_collection = item.get_model()
        self._tree_view_item = item
        self._data_collection = data_collection
        self._acquisition_mib = DataModelInputBinder(self._data_collection.\
                                                         acquisitions[0].acquisition_parameters)

        # The acq_widget sends a signal to the path_widget, and it relies
        # on that both models upto date, we need to refactor this part
        # so that both models are set before taking ceratin actions.
        # This workaround, works for the time beeing.
        self._data_path_widget._data_model = data_collection.acquisitions[
            0].path_template

        self._acq_widget.set_energies(
            data_collection.crystal.energy_scan_result)
        self._acq_widget.update_data_model(data_collection.acquisitions[0].\
                                          acquisition_parameters,
                                          data_collection.acquisitions[0].\
                                          path_template)
        self._data_path_widget.update_data_model(data_collection.\
                                           acquisitions[0].path_template)
        self._processing_widget.update_data_model(data_collection.\
                                                 processing_parameters)

        invalid = self._acquisition_mib.validate_all()
        if invalid:
            msg = "This data collection has one or more incorrect parameters,"+\
                " correct the fields marked in red to solve the problem."

            logging.getLogger("GUI").warning(msg)
    def __init__(self, parent=None, name=None, fl=0):
        CreateTaskBase.__init__(self, parent, name, QtCore.Qt.WindowFlags(fl),
                                'GphlWorkflow')

        if not name:
            self.setObjectName("Qt4_create_gphl_workflow_widget")

        # Hardware objects ----------------------------------------------------
        self._workflow_hwobj = None

        # Internal variables --------------------------------------------------
        self.current_prefix = None

        self.init_models()

        # Graphic elements ----------------------------------------------------
        self._workflow_type_widget = QtGui.QGroupBox('Workflow type', self)

        self._workflow_cbox = QtGui.QComboBox(self._workflow_type_widget)
        self._gphl_acq_widget = QtGui.QGroupBox('Acquisition', self)
        self._gphl_acq_param_widget = GphlAcquisitionWidget(
            self._gphl_acq_widget, "gphl_acquisition_parameter_widget")

        self._data_path_widget = DataPathWidget(self,
                                                'create_dc_path_widget',
                                                layout='vertical')
        data_path_layout = self._data_path_widget.data_path_layout
        data_path_layout.file_name_label.hide()
        data_path_layout.file_name_value_label.hide()
        data_path_layout.run_number_label.hide()
        data_path_layout.run_number_ledit.hide()

        self._processing_widget = ProcessingWidget(self)
        processing_layout = self._processing_widget.processing_widget
        processing_layout.num_residues_label.hide()
        processing_layout.num_residues_ledit.hide()
        processing_layout.run_processing_after_cbox.hide()

        # Layout --------------------------------------------------------------
        _workflow_type_vlayout = QtGui.QVBoxLayout(self._workflow_type_widget)
        _workflow_type_vlayout.addWidget(self._workflow_cbox)
        _gphl_acq_vlayout = QtGui.QVBoxLayout(self._gphl_acq_widget)
        _gphl_acq_vlayout.addWidget(self._gphl_acq_param_widget)
        _main_vlayout = QtGui.QVBoxLayout(self)
        _main_vlayout.addWidget(self._workflow_type_widget)
        _main_vlayout.addWidget(self._data_path_widget)
        _main_vlayout.addWidget(self._gphl_acq_widget)
        _main_vlayout.addWidget(self._processing_widget)
        _main_vlayout.addStretch(0)
        _main_vlayout.setSpacing(2)
        _main_vlayout.setContentsMargins(0, 0, 0, 0)

        # SizePolicies --------------------------------------------------------

        # Qt signal/slot connections ------------------------------------------
        # TODO check if this is needed
        # self._data_path_widget.data_path_layout.prefix_ledit.textChanged.connect(
        #              self._prefix_ledit_change)
        # Removed in porting to master branch
        # self._data_path_widget.data_path_layout.run_number_ledit.textChanged.connect(
        #              self._run_number_ledit_change)
        self._workflow_cbox.currentIndexChanged[str].connect(
            self.workflow_selected)

        # set up popup data dialog
        self.gphl_data_dialog = GphlDataDialog(self, 'GPhL Workflow Data')
        self.gphl_data_dialog.setModal(True)
        self.gphl_data_dialog.continueClickedSignal.connect(self.data_acquired)
class CreateGphlWorkflowWidget(CreateTaskBase):
    def __init__(self, parent=None, name=None, fl=0):
        CreateTaskBase.__init__(self, parent, name, QtCore.Qt.WindowFlags(fl),
                                'GphlWorkflow')

        if not name:
            self.setObjectName("Qt4_create_gphl_workflow_widget")

        # Hardware objects ----------------------------------------------------
        self._workflow_hwobj = None

        # Internal variables --------------------------------------------------
        self.current_prefix = None

        self.init_models()

        # Graphic elements ----------------------------------------------------
        self._workflow_type_widget = QtGui.QGroupBox('Workflow type', self)

        self._workflow_cbox = QtGui.QComboBox(self._workflow_type_widget)
        self._gphl_acq_widget = QtGui.QGroupBox('Acquisition', self)
        self._gphl_acq_param_widget = GphlAcquisitionWidget(
            self._gphl_acq_widget, "gphl_acquisition_parameter_widget")

        self._data_path_widget = DataPathWidget(self,
                                                'create_dc_path_widget',
                                                layout='vertical')
        data_path_layout = self._data_path_widget.data_path_layout
        data_path_layout.file_name_label.hide()
        data_path_layout.file_name_value_label.hide()
        data_path_layout.run_number_label.hide()
        data_path_layout.run_number_ledit.hide()

        self._processing_widget = ProcessingWidget(self)
        processing_layout = self._processing_widget.processing_widget
        processing_layout.num_residues_label.hide()
        processing_layout.num_residues_ledit.hide()
        processing_layout.run_processing_after_cbox.hide()

        # Layout --------------------------------------------------------------
        _workflow_type_vlayout = QtGui.QVBoxLayout(self._workflow_type_widget)
        _workflow_type_vlayout.addWidget(self._workflow_cbox)
        _gphl_acq_vlayout = QtGui.QVBoxLayout(self._gphl_acq_widget)
        _gphl_acq_vlayout.addWidget(self._gphl_acq_param_widget)
        _main_vlayout = QtGui.QVBoxLayout(self)
        _main_vlayout.addWidget(self._workflow_type_widget)
        _main_vlayout.addWidget(self._data_path_widget)
        _main_vlayout.addWidget(self._gphl_acq_widget)
        _main_vlayout.addWidget(self._processing_widget)
        _main_vlayout.addStretch(0)
        _main_vlayout.setSpacing(2)
        _main_vlayout.setContentsMargins(0, 0, 0, 0)

        # SizePolicies --------------------------------------------------------

        # Qt signal/slot connections ------------------------------------------
        # TODO check if this is needed
        # self._data_path_widget.data_path_layout.prefix_ledit.textChanged.connect(
        #              self._prefix_ledit_change)
        # Removed in porting to master branch
        # self._data_path_widget.data_path_layout.run_number_ledit.textChanged.connect(
        #              self._run_number_ledit_change)
        self._workflow_cbox.currentIndexChanged[str].connect(
            self.workflow_selected)

        # set up popup data dialog
        self.gphl_data_dialog = GphlDataDialog(self, 'GPhL Workflow Data')
        self.gphl_data_dialog.setModal(True)
        self.gphl_data_dialog.continueClickedSignal.connect(self.data_acquired)
        # self.connect(self.gphl_data_dialog, qt.PYSIGNAL("continue_clicked"),
        #              self.data_acquired)

    def initialise_workflows(self, workflow_hwobj):
        self._workflow_hwobj = workflow_hwobj
        self._workflow_cbox.clear()
        # self._gphl_parameters_widget.set_workflow(workflow_hwobj)

        if self._workflow_hwobj is not None:
            workflow_names = list(workflow_hwobj.get_available_workflows())
            for workflow_name in workflow_names:
                self._workflow_cbox.addItem(workflow_name)
            self.workflow_selected(workflow_names[0])

            workflow_hwobj.connect('gphlParametersNeeded',
                                   self.gphl_data_dialog.open_dialog)

        # # Set hardwired and default values
        # self._gphl_acquisition_widget.set_param_value('char_energy',
        #     workflow_hwobj.getProperty('characterisation_energy')
        # )
        # # Placeholder. Must be set to match hardwired detector distance
        # self._gphl_acquisition_widget.set_param_value('detector_resolution', -1)

    def workflow_selected(self, name):
        # necessary as this comes in as a QString object
        name = str(name)
        # if reset or name != self._previous_workflow:
        xx = self._workflow_cbox
        xx.setCurrentIndex(xx.findText(name))
        # self._previous_workflow = name

        parameters = self._workflow_hwobj.get_available_workflows()[name]
        beam_energies = parameters.get('beam_energies', {})
        strategy_type = parameters.get('strategy_type')
        if strategy_type == 'transcal':
            self._processing_widget.hide()
            self._gphl_acq_widget.hide()
        else:
            # diffractcal or acquisition type strategy
            self._processing_widget.show()
            self._gphl_acq_param_widget.populate_widget(
                beam_energies=beam_energies)
            self._gphl_acq_widget.show()

        prefix = parameters.get('prefix')
        if prefix is not None:
            self.current_prefix = prefix

    def data_acquired(self):
        """Data gathered from popup, continue execution"""
        pass

    # def set_beam_energies(self, beam_energy_dict):
    #     parameter_dict = self._gphl_acquisition_widget.get_parameter_dict()
    #     for tag, energy in beam_energy_dict.items():
    #         if tag in parameter_dict:
    #             self._gphl_acquisition_widget.set_param_value(tag, energy)
    #         else:
    #             raise ValueError("GPhL: No active beam energy named %s"
    #                              % tag)

    def single_item_selection(self, tree_item):
        CreateTaskBase.single_item_selection(self, tree_item)
        wf_model = tree_item.get_model()

        if isinstance(tree_item, queue_item.SampleQueueItem):
            sample_model = tree_item.get_model()
            self._processing_parameters = sample_model.processing_parameters
        else:

            if isinstance(tree_item, queue_item.GphlWorkflowQueueItem):
                if tree_item.get_model().is_executed():
                    self.setDisabled(True)
                else:
                    self.setDisabled(False)

                if wf_model.get_path_template():
                    self._path_template = wf_model.get_path_template()

                self._data_path_widget.update_data_model(self._path_template)

            elif isinstance(tree_item, queue_item.BasketQueueItem):
                self.setDisabled(False)
            elif not isinstance(tree_item,
                                queue_item.DataCollectionGroupQueueItem):
                self.setDisabled(True)

        self._processing_widget.update_data_model(self._processing_parameters)

    def init_models(self):
        CreateTaskBase.init_models(self)
        self._init_models()

    def _init_models(self):
        self._processing_parameters = queue_model_objects.ProcessingParameters(
        )
        self._processing_parameters.num_residues = 0
        self._processing_parameters.process_data = False
        # self.workflow_selected(self._workflow_cbox.currentText())

    def continue_button_click(self, sample_items, checked_items):
        """Intercepts the datacollection continue_button click for parameter setting"""
        tree_brick = self._tree_brick
        if tree_brick:
            for item in checked_items:
                model = item.get_model()
                if isinstance(model, queue_model_objects.GphlWorkflow):
                    dialog = tree_brick.dc_tree_widget.confirm_dialog
                    ss = dialog.conf_dialog_layout.take_snapshots_combo.currentText(
                    )
                    model.set_snapshot_count(int(ss) if ss else 0)

    # Called by the owning widget (task_toolbox_widget) to create
    # a collection. When a data collection group is selected.
    def _create_task(self, sample, shape):
        tasks = []

        path_template = self._create_path_template(sample, self._path_template)
        path_template.num_files = 0

        ho = self._workflow_hwobj
        if ho.get_state() == States.OFF:
            # We will be setting up the connection now - time to connect to quit
            QtGui.QApplication.instance().aboutToQuit.connect(ho.shutdown)

            tree_brick = self._tree_brick
            if tree_brick:
                tree_brick.dc_tree_widget.confirm_dialog.continueClickedSignal\
                    .connect(self.continue_button_click)

        wf = queue_model_objects.GphlWorkflow(self._workflow_hwobj)
        wf_type = str(self._workflow_cbox.currentText())
        wf.set_type(wf_type)
        interleave_order = ho.get_available_workflows()[wf_type].get(
            'interleaveOrder', '')
        wf.set_interleave_order(interleave_order)

        if self.current_prefix:
            path_template.base_prefix = self.current_prefix
        wf.path_template = path_template
        wf.processing_parameters = self._processing_parameters
        wf.set_name(wf.path_template.get_prefix())
        wf.set_number(wf.path_template.run_number)

        expected_resolution = self._gphl_acq_param_widget.get_parameter_value(
            'expected_resolution')
        wf.set_expected_resolution(expected_resolution)

        dd = self._gphl_acq_param_widget.get_energy_dict()
        wf.set_beam_energies(dd)

        tasks.append(wf)

        return tasks
Esempio n. 8
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    def __init__(self, parent=None, name="parameter_widget"):

        QtGui.QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name)

        # Properties ----------------------------------------------------------

        # Signals ------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QtGui.QWidget(self)
        self.caution_pixmap = Qt4_Icons.load("Caution2.png")
        self.path_widget = DataPathWidget(_dc_parameters_widget)
        self.acq_widget = AcquisitionWidget(_dc_parameters_widget,
                                            layout='horizontal')
        #self.acq_widget.setFixedHeight(170)
        self.processing_widget = ProcessingWidget(_dc_parameters_widget)
        self.position_widget = uic.loadUi(
            os.path.join(os.path.dirname(__file__),
                         'ui_files/Qt4_snapshot_widget_layout.ui'))
        #self.position_widget.setMinimumSize(310, 210)

        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QtGui.QVBoxLayout(self)
        _dc_parameters_widget_layout.addWidget(self.path_widget)
        _dc_parameters_widget_layout.addWidget(self.acq_widget)
        _dc_parameters_widget_layout.addWidget(self.processing_widget)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(0)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget.setLayout(_dc_parameters_widget_layout)

        _main_hlayout = QtGui.QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.addWidget(self.position_widget)
        _main_hlayout.setSpacing(2)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.addStretch(0)
        self.setLayout(_main_hlayout)

        # SizePolicies --------------------------------------------------------

        # Qt signal/slot connections ------------------------------------------
        self.path_widget.data_path_layout.prefix_ledit.textChanged.connect(
            self._prefix_ledit_change)
        self.path_widget.data_path_layout.run_number_ledit.textChanged.connect(
            self._run_number_ledit_change)
        self.connect(self.acq_widget, QtCore.SIGNAL('mad_energy_selected'),
                     self.mad_energy_selected)
        self.connect(self.acq_widget, QtCore.SIGNAL("path_template_changed"),
                     self.handle_path_conflict)

        #QtCore.QObject.connect(QtGui.QApplication, QtCore.SIGNAL('tab_changed'),
        #                       self.tab_changed)

        # Other ---------------------------------------------------------------
        Qt4_widget_colors.set_widget_color(self.path_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.acq_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.processing_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.position_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
Esempio n. 9
0
class DCParametersWidget(QtGui.QWidget):
    def __init__(self, parent=None, name="parameter_widget"):

        QtGui.QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name)

        # Properties ----------------------------------------------------------

        # Signals ------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QtGui.QWidget(self)
        self.caution_pixmap = Qt4_Icons.load("Caution2.png")
        self.path_widget = DataPathWidget(_dc_parameters_widget)
        self.acq_widget = AcquisitionWidget(_dc_parameters_widget,
                                            layout='horizontal')
        #self.acq_widget.setFixedHeight(170)
        self.processing_widget = ProcessingWidget(_dc_parameters_widget)
        self.position_widget = uic.loadUi(
            os.path.join(os.path.dirname(__file__),
                         'ui_files/Qt4_snapshot_widget_layout.ui'))
        #self.position_widget.setMinimumSize(310, 210)

        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QtGui.QVBoxLayout(self)
        _dc_parameters_widget_layout.addWidget(self.path_widget)
        _dc_parameters_widget_layout.addWidget(self.acq_widget)
        _dc_parameters_widget_layout.addWidget(self.processing_widget)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(0)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget.setLayout(_dc_parameters_widget_layout)

        _main_hlayout = QtGui.QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.addWidget(self.position_widget)
        _main_hlayout.setSpacing(2)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.addStretch(0)
        self.setLayout(_main_hlayout)

        # SizePolicies --------------------------------------------------------

        # Qt signal/slot connections ------------------------------------------
        self.path_widget.data_path_layout.prefix_ledit.textChanged.connect(
            self._prefix_ledit_change)
        self.path_widget.data_path_layout.run_number_ledit.textChanged.connect(
            self._run_number_ledit_change)
        self.connect(self.acq_widget, QtCore.SIGNAL('mad_energy_selected'),
                     self.mad_energy_selected)
        self.connect(self.acq_widget, QtCore.SIGNAL("path_template_changed"),
                     self.handle_path_conflict)

        #QtCore.QObject.connect(QtGui.QApplication, QtCore.SIGNAL('tab_changed'),
        #                       self.tab_changed)

        # Other ---------------------------------------------------------------
        Qt4_widget_colors.set_widget_color(self.path_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.acq_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.processing_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)
        Qt4_widget_colors.set_widget_color(self.position_widget,
                                           Qt4_widget_colors.GROUP_BOX_GRAY)

    def set_beamline_setup(self, bl_setup):
        self.acq_widget.set_beamline_setup(bl_setup)
        self._beamline_setup_hwobj = bl_setup

    def _prefix_ledit_change(self, new_value):
        prefix = self._data_collection.acquisitions[0].\
                 path_template.get_prefix()
        self._data_collection.set_name(prefix)
        self._tree_view_item.setText(0, self._data_collection.get_name())

    def _run_number_ledit_change(self, new_value):
        if str(new_value).isdigit():
            self._data_collection.set_number(int(new_value))
            self._tree_view_item.setText(0, self._data_collection.get_name())

    def handle_path_conflict(self, widget, new_value):
        if self._tree_view_item is None:
            #TODO fix this
            return

        dc_tree_widget = self._tree_view_item.listView().parent()
        dc_tree_widget.check_for_path_collisions()
        path_template = self._data_collection.acquisitions[0].path_template
        path_conflict = self.queue_model_hwobj.\
                        check_for_path_collisions(path_template)

        if new_value != '':
            if path_conflict:
                logging.getLogger("user_level_log").\
                    error('The current path settings will overwrite data' +\
                          ' from another task. Correct the problem before collecting')

                widget.setPaletteBackgroundColor(widget_colors.LIGHT_RED)
            else:
                widget.setPaletteBackgroundColor(widget_colors.WHITE)

    def __add_data_collection(self):
        return self.add_dc_cb(self._data_collection, self.collection_type)

    def mad_energy_selected(self, name, energy, state):
        path_template = self._data_collection.acquisitions[0].path_template

        if state:
            path_template.mad_prefix = name
        else:
            path_template.mad_prefix = ''

        run_number = self._beamline_setup_hwobj.queue_model_hwobj.\
          get_next_run_number(path_template)

        self.path_widget.set_run_number(run_number)
        self.path_widget.set_prefix(path_template.base_prefix)
        model = self._tree_view_item.get_model()
        model.set_name(path_template.get_prefix())
        self._tree_view_item.setText(0, model.get_name())

    def tab_changed(self):
        if self._tree_view_item:
            self.populate_parameter_widget(self._tree_view_item)

    def set_enabled(self, state):
        self.acq_widget.setEnabled(state)
        self.path_widget.setEnabled(state)
        self.processing_widget.setEnabled(state)

    def populate_widget(self, item):
        data_collection = item.get_model()
        self._tree_view_item = item
        self._data_collection = data_collection
        self._acquisition_mib = DataModelInputBinder(self._data_collection.\
                                                         acquisitions[0].acquisition_parameters)

        # The acq_widget sends a signal to the path_widget, and it relies
        # on that both models upto date, we need to refactor this part
        # so that both models are set before taking ceratin actions.
        # This workaround, works for the time beeing.
        self.path_widget._data_model = data_collection.acquisitions[
            0].path_template

        self.acq_widget.set_energies(
            data_collection.crystal.energy_scan_result)
        self.acq_widget.update_data_model(data_collection.acquisitions[0].\
                                          acquisition_parameters,
                                          data_collection.acquisitions[0].\
                                          path_template)
        self.acq_widget.use_osc_start(True)

        self.path_widget.update_data_model(data_collection.\
                                           acquisitions[0].path_template)

        self.processing_widget.update_data_model(data_collection.\
                                                 processing_parameters)

        if data_collection.acquisitions[0].acquisition_parameters.\
                centred_position.snapshot_image:
            image = data_collection.acquisitions[0].\
                acquisition_parameters.centred_position.snapshot_image
            ration = image.height() / float(image.width())
            image = image.scaled(400, 400 * ration, QtCore.Qt.KeepAspectRatio)
            self.position_widget.svideo.setPixmap(QtGui.QPixmap(image))

        invalid = self._acquisition_mib.validate_all()

        if invalid:
            msg = "This data collection has one or more incorrect parameters,"+\
                " correct the fields marked in red to solve the problem."

            logging.getLogger("user_level_log").\
                warning(msg)
class DCParametersWidget(QtGui.QWidget):
    def __init__(self, parent = None, name = "parameter_widget"):

        QtGui.QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name) 

        # Properties ----------------------------------------------------------

        # Signals ------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QtGui.QWidget(self)
        self._data_path_widget = DataPathWidget(_dc_parameters_widget)
        self._acq_widget = AcquisitionWidget(_dc_parameters_widget, 
                                            layout = 'horizontal')
        self._processing_widget = ProcessingWidget(_dc_parameters_widget)
        
        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QtGui.QVBoxLayout(_dc_parameters_widget)
        _dc_parameters_widget_layout.addWidget(self._data_path_widget)
        _dc_parameters_widget_layout.addWidget(self._acq_widget)
        _dc_parameters_widget_layout.addWidget(self._processing_widget)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(10)

        _main_hlayout = QtGui.QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.setSpacing(2)
        _main_hlayout.addStretch(0)

        # SizePolicies --------------------------------------------------------
        

        # Qt signal/slot connections ------------------------------------------
        self._data_path_widget.data_path_layout.prefix_ledit.textChanged.\
             connect(self._prefix_ledit_change)
        self._data_path_widget.data_path_layout.run_number_ledit.textChanged.\
             connect(self._run_number_ledit_change)
        self._acq_widget.madEnergySelectedSignal.\
             connect(self.mad_energy_selected)
        self._acq_widget.acqParametersChangedSignal.\
             connect(self.acq_parameters_changed)

        # Other ---------------------------------------------------------------

    def set_beamline_setup(self, bl_setup):
        self._acq_widget.set_beamline_setup(bl_setup)
        self._beamline_setup_hwobj = bl_setup

    def _prefix_ledit_change(self, new_value):
        prefix = self._data_collection.acquisitions[0].\
                 path_template.get_prefix()
        self._data_collection.set_name(prefix)
        self._tree_view_item.setText(0, self._data_collection.get_name())

    def _run_number_ledit_change(self, new_value):
        if str(new_value).isdigit():
            self._data_collection.set_number(int(new_value))
            self._tree_view_item.setText(0, self._data_collection.get_name())

    def acq_parameters_changed(self):
        if self._tree_view_item is None:
            #TODO fix this
            return 
        dc_tree_widget = self._tree_view_item.listView().parent()
        dc_tree_widget.check_for_path_collisions()
        path_template = self._data_collection.acquisitions[0].path_template
        path_conflict = self.queue_model_hwobj.\
                        check_for_path_collisions(path_template)

    def __add_data_collection(self):
        return self.add_dc_cb(self._data_collection, self.collection_type)
    
    def mad_energy_selected(self, name, energy, state):
        path_template = self._data_collection.acquisitions[0].path_template

        if state:
            path_template.mad_prefix = name
        else:
            path_template.mad_prefix = ''

        run_number = self._beamline_setup_hwobj.queue_model_hwobj.\
          get_next_run_number(path_template)

        self._data_path_widget.set_run_number(run_number)
        self._data_path_widget.set_prefix(path_template.base_prefix)
        model = self._tree_view_item.get_model()
        model.set_name(path_template.get_prefix())
        self._tree_view_item.setText(0, model.get_name())
        
    def tab_changed(self):
        if self._tree_view_item:
            self.populate_parameter_widget(self._tree_view_item)

    def set_enabled(self, state):
        self._acq_widget.setEnabled(state)
        self._data_path_widget.setEnabled(state)
        self._processing_widget.setEnabled(state)

    def populate_widget(self, item):
        data_collection = item.get_model()
        self._tree_view_item = item
        self._data_collection = data_collection
        self._acquisition_mib = DataModelInputBinder(self._data_collection.\
                                                         acquisitions[0].acquisition_parameters)

        # The acq_widget sends a signal to the path_widget, and it relies
        # on that both models upto date, we need to refactor this part
        # so that both models are set before taking ceratin actions.
        # This workaround, works for the time beeing.
        self._data_path_widget._data_model = data_collection.acquisitions[0].path_template

        self._acq_widget.set_energies(data_collection.crystal.energy_scan_result)
        self._acq_widget.update_data_model(data_collection.acquisitions[0].\
                                          acquisition_parameters,
                                          data_collection.acquisitions[0].\
                                          path_template)
        self._data_path_widget.update_data_model(data_collection.\
                                           acquisitions[0].path_template)
        self._processing_widget.update_data_model(data_collection.\
                                                 processing_parameters)

        invalid = self._acquisition_mib.validate_all()
        if invalid:
            msg = "This data collection has one or more incorrect parameters,"+\
                " correct the fields marked in red to solve the problem."

            logging.getLogger("GUI").warning(msg)
    def __init__(self, parent = None, name = "parameter_widget"):

        QtGui.QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name) 

        # Properties ----------------------------------------------------------

        # Signals -------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QtGui.QWidget(self)
        self._data_path_widget = DataPathWidget(_dc_parameters_widget)
        self._acq_widget = AcquisitionWidget(_dc_parameters_widget, 
                                            layout = 'horizontal')
        #self._acq_widget.setFixedHeight(170)
        self._processing_widget = ProcessingWidget(_dc_parameters_widget)
        _snapshot_widget = QtGui.QWidget(self)
        self.position_widget = uic.loadUi(os.path.join(os.path.dirname(__file__),
                                          'ui_files/Qt4_snapshot_widget_layout.ui'))
        # LNLS
        self.position_widget.setFixedSize(450, 340)

        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QtGui.QVBoxLayout(_dc_parameters_widget)
        _dc_parameters_widget_layout.addWidget(self._data_path_widget)
        _dc_parameters_widget_layout.addWidget(self._acq_widget)
        _dc_parameters_widget_layout.addWidget(self._processing_widget)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(0)

        _snapshots_vlayout = QtGui.QVBoxLayout(_snapshot_widget)
        _snapshots_vlayout.addWidget(self.position_widget)
        _snapshots_vlayout.setContentsMargins(0, 0, 0, 0)
        _snapshots_vlayout.setSpacing(2)
        # LNLS
        # _snapshots_vlayout.addStretch(10)
        _snapshots_vlayout.addStretch(0)
        _snapshot_widget.setLayout(_snapshots_vlayout)
        # ----

        _main_hlayout = QtGui.QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.addWidget(_snapshot_widget)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.setSpacing(2)
        _main_hlayout.addStretch(0)

        # SizePolicies --------------------------------------------------------
        

        # Qt signal/slot connections ------------------------------------------
        self._data_path_widget.data_path_layout.prefix_ledit.textChanged.connect(
                     self._prefix_ledit_change)
        self._data_path_widget.data_path_layout.run_number_ledit.textChanged.connect( 
                     self._run_number_ledit_change)

        self._acq_widget.madEnergySelectedSignal.connect(self.mad_energy_selected)
        self._acq_widget.acqParametersChangedSignal.connect(\
             self.acq_parameters_changed)
    def __init__(self, parent=None, name="parameter_widget"):

        QtGui.QWidget.__init__(self, parent)
        if name is not None:
            self.setObjectName(name)

        # Properties ----------------------------------------------------------

        # Signals -------------------------------------------------------------

        # Slots ---------------------------------------------------------------

        # Hardware objects ----------------------------------------------------
        self._beamline_setup_hwobj = None

        # Internal variables --------------------------------------------------
        self._data_collection = None
        self.add_dc_cb = None
        self._tree_view_item = None

        # Graphic elements ----------------------------------------------------
        _dc_parameters_widget = QtGui.QWidget(self)
        self._data_path_widget = DataPathWidget(_dc_parameters_widget)
        self._acq_widget = AcquisitionWidget(_dc_parameters_widget,
                                             layout='horizontal')
        #self._acq_widget.setFixedHeight(170)
        self._processing_widget = ProcessingWidget(_dc_parameters_widget)
        _snapshot_widget = QtGui.QWidget(self)
        self.position_widget = uic.loadUi(
            os.path.join(os.path.dirname(__file__),
                         'ui_files/Qt4_snapshot_widget_layout.ui'))
        # LNLS
        self.position_widget.setFixedSize(450, 340)

        # Layout --------------------------------------------------------------
        _dc_parameters_widget_layout = QtGui.QVBoxLayout(_dc_parameters_widget)
        _dc_parameters_widget_layout.addWidget(self._data_path_widget)
        _dc_parameters_widget_layout.addWidget(self._acq_widget)
        _dc_parameters_widget_layout.addWidget(self._processing_widget)
        _dc_parameters_widget_layout.setContentsMargins(0, 0, 0, 0)
        _dc_parameters_widget_layout.setSpacing(2)
        _dc_parameters_widget_layout.addStretch(0)

        _snapshots_vlayout = QtGui.QVBoxLayout(_snapshot_widget)
        _snapshots_vlayout.addWidget(self.position_widget)
        _snapshots_vlayout.setContentsMargins(0, 0, 0, 0)
        _snapshots_vlayout.setSpacing(2)
        # LNLS
        # _snapshots_vlayout.addStretch(10)
        _snapshots_vlayout.addStretch(0)
        _snapshot_widget.setLayout(_snapshots_vlayout)
        # ----

        _main_hlayout = QtGui.QHBoxLayout(self)
        _main_hlayout.addWidget(_dc_parameters_widget)
        _main_hlayout.addWidget(_snapshot_widget)
        _main_hlayout.setContentsMargins(0, 0, 0, 0)
        _main_hlayout.setSpacing(2)
        _main_hlayout.addStretch(0)

        # SizePolicies --------------------------------------------------------

        # Qt signal/slot connections ------------------------------------------
        self._data_path_widget.data_path_layout.prefix_ledit.textChanged.connect(
            self._prefix_ledit_change)
        self._data_path_widget.data_path_layout.run_number_ledit.textChanged.connect(
            self._run_number_ledit_change)

        self._acq_widget.madEnergySelectedSignal.connect(
            self.mad_energy_selected)
        self._acq_widget.acqParametersChangedSignal.connect(\
             self.acq_parameters_changed)