bugfix: imports corrected;

imports updated, layout of 'FilterOptionsDock' started

pylot/core/util/widgets.py

@@ -12,10 +12,10 @@ matplotlib.rcParams['backend.qt4'] = 'PySide'
 
 from matplotlib.figure import Figure
 from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg
-from PySide.QtGui import (QDialog, QDockWidget)
-
+from PySide.QtGui import (QDialog, QDockWidget, QDoubleSpinBox, QLabel,
+                          QGroupBox, QGridLayout)
 from pylot.core.util import OptionsError
-from pylot.core.util import FilterOptions
+from pylot.core.read import FilterOptions
 
 
 class MPLWidget(FigureCanvasQTAgg):
@@ -61,6 +61,38 @@ class FilterOptionsDock(QDockWidget):
                 filterOptions = fOptions
             except Exception, e:
                 raise OptionsError('%s' % e)
+        else:
+            filterOptions = FilterOptions()
+
+        freqminLabel = QLabel()
+        freqminLabel.setText("minimum:")
+        freqminSpinBox = QDoubleSpinBox()
+        freqminSpinBox.setRange(5e-7, 1e6)
+        freqminSpinBox.setDecimals(2)
+        freqminSpinBox.setValue(filterOptions.freq[0])
+        freqmaxLabel = QLabel()
+        freqmaxLabel.setText("maximum:")
+        freqmaxSpinBox = QDoubleSpinBox()
+        freqmaxSpinBox.setRange(5e-7, 1e6)
+        freqmaxSpinBox.setDecimals(2)
+
+        if filterOptions.filterType not in ['bandpass', 'bandstop']:
+            freqminLabel.setText("cutoff:")
+            freqmaxLabel.setEnabled(False)
+            freqmaxSpinBox.setEnabled(False)
+
+        freqGroupBox = QGroupBox("Frequency range")
+        gbLayout = QGridLayout()
+        gbLayout.addWidget(freqminLabel, 0, 0)
+        gbLayout.addWidget(freqminSpinBox, 0, 1)
+        gbLayout.addWidget(freqmaxLabel, 1, 0)
+        gbLayout.addWidget(freqmaxSpinBox, 1, 1)
+        freqGroupBox.setLayout(gbLayout)
+
+        grid = QGridLayout()
+        grid.addWidget(freqGroupBox, 0, 0, 2, 2)
+
+        self.setLayout(grid)
 
 
 class LoadDataDlg(QDialog):