def _construct_UI(self):
"""
Intitialize the widget, consisting of:
- top chkbox row
- coefficient table
- two bottom rows with action buttons
"""
self.bfont = QFont()
self.bfont.setBold(True)
self.bifont = QFont()
self.bifont.setBold(True)
self.bifont.setItalic(True)
# q_icon_size = QSize(20, 20) # optional, size is derived from butEnable
#######################################################################
# frmMain
#
# This frame contains all the buttons
#######################################################################
# ---------------------------------------------
# layHDisplay
#
# UI Elements for controlling the display
# ---------------------------------------------
self.butEnable = PushButton(self, icon=QIcon(':/circle-check.svg'), checked=True)
q_icon_size = self.butEnable.iconSize() # <- uncomment this for manual sizing
self.butEnable.setToolTip(
"<span>Show / hide filter coefficients in an editable table."
" For high order systems, table display might be slow.</span>")
fix_formats = ['Dec', 'Hex', 'Bin', 'CSD']
self.cmbFormat = QComboBox(self)
model = self.cmbFormat.model()
item = QtGui.QStandardItem('Float')
item.setData('child', Qt.AccessibleDescriptionRole)
model.appendRow(item)
item = QtGui.QStandardItem('Fixp.:')
item.setData('parent', Qt.AccessibleDescriptionRole)
item.setData(0, QtGui.QFont.Bold)
item.setFlags(item.flags() & ~Qt.ItemIsEnabled) # | Qt.ItemIsSelectable))
model.appendRow(item)
for idx in range(len(fix_formats)):
item = QtGui.QStandardItem(fix_formats[idx])
# item.setForeground(QtGui.QColor('red'))
model.appendRow(item)
self.cmbFormat.insertSeparator(1)
qset_cmb_box(self.cmbFormat, 'float')
self.cmbFormat.setToolTip('Set the display format.')
self.cmbFormat.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.spnDigits = QSpinBox(self)
self.spnDigits.setRange(0, 16)
self.spnDigits.setValue(params['FMT_ba'])
self.spnDigits.setToolTip("Number of digits to display.")
self.lblDigits = QLabel("Digits", self)
self.lblDigits.setFont(self.bifont)
self.cmbQFrmt = QComboBox(self)
q_formats = [('Norm. Frac.', 'qnfrac'), ('Integer', 'qint'),
('Fractional', 'qfrac')]
for q in q_formats:
self.cmbQFrmt.addItem(*q)
self.lbl_W = QLabel("W = ", self)
self.lbl_W.setFont(self.bifont)
self.ledW = QLineEdit(self)
self.ledW.setToolTip("Specify total wordlength.")
self.ledW.setText("16")
self.ledW.setMaxLength(2) # maximum of 2 digits
self.ledW.setFixedWidth(30) # width of lineedit in points(?)
layHDisplay = QHBoxLayout()
layHDisplay.setAlignment(Qt.AlignLeft)
layHDisplay.addWidget(self.butEnable)
layHDisplay.addWidget(self.cmbFormat)
layHDisplay.addWidget(self.spnDigits)
layHDisplay.addWidget(self.lblDigits)
layHDisplay.addWidget(self.cmbQFrmt)
layHDisplay.addWidget(self.lbl_W)
layHDisplay.addWidget(self.ledW)
layHDisplay.addStretch()
#######################################################################
# frmButtonsCoeffs
#
# This frame contains all buttons for manipulating coefficients
#######################################################################
# -----------------------------------------------------------------
# layHButtonsCoeffs1
#
# UI Elements for loading / storing / manipulating cells and rows
# -----------------------------------------------------------------
self.cmbFilterType = QComboBox(self)
self.cmbFilterType.setObjectName("comboFilterType")
self.cmbFilterType.setToolTip(
"<span>Select between IIR and FIR filter for manual entry."
"Changing the type reloads the filter from the filter dict.</span>")
self.cmbFilterType.addItems(["FIR", "IIR"])
self.cmbFilterType.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.butAddCells = QPushButton(self)
self.butAddCells.setIcon(QIcon(':/row_insert_above.svg'))
self.butAddCells.setIconSize(q_icon_size)
self.butAddCells.setToolTip(
"<span>Select cells to insert a new cell above each selected cell. "
"Use <SHIFT> or <CTRL> to select multiple cells. "
"When nothing is selected, add a row at the end.</span>")
self.butDelCells = QPushButton(self)
self.butDelCells.setIcon(QIcon(':/row_delete.svg'))
self.butDelCells.setIconSize(q_icon_size)
self.butDelCells.setToolTip(
"<span>Delete selected cell(s) from the table. "
"Use <SHIFT> or <CTRL> to select multiple cells. "
"When nothing is selected, delete the last row.</span>")
self.butSave = QPushButton(self)
self.butSave.setIcon(QIcon(':/upload.svg'))
self.butSave.setIconSize(q_icon_size)
self.butSave.setToolTip(
"<span>Copy coefficient table to filter dict and update all plots"
"and widgets.</span>")
self.butLoad = QPushButton(self)
self.butLoad.setIcon(QIcon(':/download.svg'))
self.butLoad.setIconSize(q_icon_size)
self.butLoad.setToolTip("Reload coefficient table from filter dict.")
self.butClear = QPushButton(self)
self.butClear.setIcon(QIcon(':/trash.svg'))
self.butClear.setIconSize(q_icon_size)
self.butClear.setToolTip("Clear all table entries.")
self.butFromTable = QPushButton(self)
self.butFromTable.setIconSize(q_icon_size)
self.butToTable = QPushButton(self)
self.butToTable.setIconSize(q_icon_size)
self.but_csv_options = PushButton(self, icon=QIcon(':/settings.svg'),
checked=False)
self.but_csv_options.setIconSize(q_icon_size)
self.but_csv_options.setToolTip(
"<span>Select CSV format and whether "
"to copy to/from clipboard or file.</span>")
self._set_load_save_icons() # initialize icon / button settings
layHButtonsCoeffs1 = QHBoxLayout()
layHButtonsCoeffs1.addWidget(self.cmbFilterType)
layHButtonsCoeffs1.addWidget(self.butAddCells)
layHButtonsCoeffs1.addWidget(self.butDelCells)
layHButtonsCoeffs1.addWidget(self.butClear)
layHButtonsCoeffs1.addWidget(self.butSave)
layHButtonsCoeffs1.addWidget(self.butLoad)
layHButtonsCoeffs1.addWidget(self.butFromTable)
layHButtonsCoeffs1.addWidget(self.butToTable)
layHButtonsCoeffs1.addWidget(self.but_csv_options)
layHButtonsCoeffs1.addStretch()
# ----------------------------------------------------------------------
# layHButtonsCoeffs2
#
# Eps / set zero settings
# ---------------------------------------------------------------------
self.butSetZero = QPushButton("= 0", self)
self.butSetZero.setToolTip(
"<span>Set selected coefficients = 0 with a magnitude < ε. "
"When nothing is selected, test the whole table.</span>")
self.butSetZero.setIconSize(q_icon_size)
lblEps = QLabel(self)
lblEps.setText("<b><i>for b, a</i> <</b>")
self.ledEps = QLineEdit(self)
self.ledEps.setToolTip("Specify tolerance value.")
layHButtonsCoeffs2 = QHBoxLayout()
layHButtonsCoeffs2.addWidget(self.butSetZero)
layHButtonsCoeffs2.addWidget(lblEps)
layHButtonsCoeffs2.addWidget(self.ledEps)
layHButtonsCoeffs2.addStretch()
# -------------------------------------------------------------------
# Now put the ButtonsCoeffs HBoxes into frmButtonsCoeffs
# ---------------------------------------------------------------------
layVButtonsCoeffs = QVBoxLayout()
layVButtonsCoeffs.addLayout(layHButtonsCoeffs1)
layVButtonsCoeffs.addLayout(layHButtonsCoeffs2)
layVButtonsCoeffs.setContentsMargins(0, 5, 0, 0)
# This frame encompasses all Quantization Settings
self.frmButtonsCoeffs = QFrame(self)
self.frmButtonsCoeffs.setLayout(layVButtonsCoeffs)
# ######################################################################
# frmQSettings
#
# This frame contains all quantization settings
# ######################################################################
# -------------------------------------------------------------------
# layHW_Scale
#
# QFormat and scale settings
# ---------------------------------------------------------------------
lbl_Q = QLabel("Q =", self)
lbl_Q.setFont(self.bifont)
self.ledWI = QLineEdit(self)
self.ledWI.setToolTip("Specify number of integer bits.")
self.ledWI.setText("0")
self.ledWI.setMaxLength(2) # maximum of 2 digits
self.ledWI.setFixedWidth(30) # width of lineedit in points(?)
self.lblDot = QLabel(".", self) # class attribute, visibility is toggled
self.lblDot.setFont(self.bfont)
self.ledWF = QLineEdit(self)
self.ledWF.setToolTip("Specify number of fractional bits.")
self.ledWF.setText("15")
self.ledWF.setMaxLength(2) # maximum of 2 digits
# self.ledWF.setFixedWidth(30) # width of lineedit in points(?)
self.ledWF.setMaximumWidth(30)
self.lblScale = QLabel("<b><i>Scale</i> =</b>", self)
self.ledScale = QLineEdit(self)
self.ledScale.setToolTip(
"Set the scale for converting float to fixpoint representation.")
self.ledScale.setText(str(1))
self.ledScale.setEnabled(False)
layHWI_WF = QHBoxLayout()
layHWI_WF.addWidget(lbl_Q)
layHWI_WF.addWidget(self.ledWI)
layHWI_WF.addWidget(self.lblDot)
layHWI_WF.addWidget(self.ledWF)
layHWI_WF.addStretch()
layHScale = QHBoxLayout()
layHScale.addWidget(self.lblScale)
layHScale.addWidget(self.ledScale)
layHScale.addStretch()
layHW_Scale = QHBoxLayout()
layHW_Scale.addLayout(layHWI_WF)
layHW_Scale.addLayout(layHScale)
# -------------------------------------------------------------------
# layGQOpt
#
# Quantization / Overflow / MSB / LSB settings
# ---------------------------------------------------------------------
lblQOvfl = QLabel("Ovfl.:", self)
lblQOvfl.setFont(self.bifont)
lblQuant = QLabel("Quant.:", self)
lblQuant.setFont(self.bifont)
self.cmbQOvfl = QComboBox(self)
qOvfl = ['wrap', 'sat']
self.cmbQOvfl.addItems(qOvfl)
qset_cmb_box(self.cmbQOvfl, 'sat')
self.cmbQOvfl.setToolTip("Select overflow behaviour.")
# ComboBox size is adjusted automatically to fit the longest element
self.cmbQOvfl.setSizeAdjustPolicy(QComboBox.AdjustToContents)
layHQOvflOpt = QHBoxLayout()
layHQOvflOpt.addWidget(lblQOvfl)
layHQOvflOpt.addWidget(self.cmbQOvfl)
layHQOvflOpt.addStretch()
self.cmbQuant = QComboBox(self)
qQuant = ['none', 'round', 'fix', 'floor']
self.cmbQuant.addItems(qQuant)
qset_cmb_box(self.cmbQuant, 'round')
self.cmbQuant.setToolTip("Select the kind of quantization.")
self.cmbQuant.setSizeAdjustPolicy(QComboBox.AdjustToContents)
layHQuantOpt = QHBoxLayout()
layHQuantOpt.addWidget(lblQuant)
layHQuantOpt.addWidget(self.cmbQuant)
layHQuantOpt.addStretch()
self.butQuant = QPushButton(self)
self.butQuant.setToolTip(
"<span>Quantize selected coefficients / "
"whole table with specified settings.</span>")
self.butQuant.setIcon(QIcon(':/quantize.svg'))
self.butQuant.setIconSize(q_icon_size)
self.butQuant.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
lblMSBtxt = QLabel(self)
lblMSBtxt.setText("<b><i>MSB</i><sub>10</sub> =</b>")
self.lblMSB = QLabel(self)
layHMSB = QHBoxLayout()
layHMSB.addWidget(lblMSBtxt)
layHMSB.addWidget(self.lblMSB)
layHMSB.addStretch()
lblLSBtxt = QLabel(self)
lblLSBtxt.setText("<b><i>LSB</i><sub>10</sub> =</b>")
self.lblLSB = QLabel(self)
layHLSB = QHBoxLayout()
layHLSB.addWidget(lblLSBtxt)
layHLSB.addWidget(self.lblLSB)
layHLSB.addStretch()
layGQOpt = QGridLayout()
layGQOpt.addLayout(layHQOvflOpt, 0, 0)
layGQOpt.addLayout(layHQuantOpt, 0, 1)
layGQOpt.addWidget(self.butQuant, 0, 2, Qt.AlignCenter)
layGQOpt.addLayout(layHMSB, 1, 0)
layGQOpt.addLayout(layHLSB, 1, 1)
# -------------------------------------------------------------------
# Display MAX
# ---------------------------------------------------------------------
lblMAXtxt = QLabel(self)
lblMAXtxt.setText("<b><i>Max =</i></b>")
self.lblMAX = QLabel(self)
layHCoeffs_MAX = QHBoxLayout()
layHCoeffs_MAX.addWidget(lblMAXtxt)
layHCoeffs_MAX.addWidget(self.lblMAX)
layHCoeffs_MAX.addStretch()
#######################################################################
# Now put all the coefficient HBoxes into frmQSettings
# ---------------------------------------------------------------------
layVButtonsQ = QVBoxLayout()
layVButtonsQ.addLayout(layHW_Scale)
layVButtonsQ.addLayout(layGQOpt)
layVButtonsQ.addLayout(layHCoeffs_MAX)
layVButtonsQ.setContentsMargins(0, 0, 0, 0)
# This frame encompasses all Quantization Settings
self.frmQSettings = QFrame(self)
self.frmQSettings.setLayout(layVButtonsQ)
#######################################################################
# ######################## Main UI Layout ############################
#######################################################################
# layout for frame (UI widget)
layVMainF = QVBoxLayout()
layVMainF.addLayout(layHDisplay)
layVMainF.addWidget(self.frmQSettings)
layVMainF.addWidget(QHLine())
layVMainF.addWidget(self.frmButtonsCoeffs)
# This frame encompasses all UI elements
frmMain = QFrame(self)
frmMain.setLayout(layVMainF)
layVMain = QVBoxLayout()
# the following affects only the first widget (intended here)
layVMain.setAlignment(Qt.AlignTop)
layVMain.addWidget(frmMain)
layVMain.setContentsMargins(*params['wdg_margins'])
self.setLayout(layVMain)
#######################################################################
# --- set initial values from dict ------------
self.spnDigits.setValue(params['FMT_ba'])
self.ledEps.setText(str(self.eps))
# ----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs
# ----------------------------------------------------------------------
self.but_csv_options.clicked.connect(self._open_csv_win)
def _construct_UI(self):
"""
Intitialize the widget, consisting of:
- top chkbox row
- coefficient table
- two bottom rows with action buttons
"""
self.bfont = QFont()
self.bfont.setBold(True)
self.bifont = QFont()
self.bifont.setBold(True)
self.bifont.setItalic(True)
# q_icon_size = QSize(20, 20) # optional, size is derived from butEnable
# ---------------------------------------------
# UI Elements for controlling the display
# ---------------------------------------------
self.butEnable = QPushButton(self)
self.butEnable.setIcon(QIcon(':/circle-x.svg'))
q_icon_size = self.butEnable.iconSize() # <- set this for manual icon sizing
self.butEnable.setIconSize(q_icon_size)
self.butEnable.setCheckable(True)
self.butEnable.setChecked(True)
self.butEnable.setToolTip("<span>Show / hide poles and zeros in an editable table."
" For high order systems, the table display might be slow.</span>")
self.cmbPZFrmt = QComboBox(self)
pz_formats = [('Cartesian', 'cartesian'), ('Polar (rad)', 'polar_rad'),
('Polar (pi)', 'polar_pi'), ('Polar (°)', 'polar_deg')] # display text, data
# π: u'3C0, °: u'B0, ∠: u'2220
for pz in pz_formats:
self.cmbPZFrmt.addItem(*pz)
self.cmbPZFrmt.setSizeAdjustPolicy(QComboBox.AdjustToContents)
# self.cmbPZFrmt.setEnabled(False)
self.cmbPZFrmt.setToolTip("<span>Set display format for poles and zeros to"
" either cartesian (x + jy) or polar (r * ∠ Ω)."
" Type 'o' for '°', '<' for '∠' and 'pi' for 'π'.</span>")
self.spnDigits = QSpinBox(self)
self.spnDigits.setRange(0,16)
self.spnDigits.setToolTip("Number of digits to display.")
self.lblDigits = QLabel("Digits", self)
self.lblDigits.setFont(self.bifont)
self.cmbCausal = QComboBox(self)
causal_types = ['Causal', 'Acausal', 'Anticausal']
for cs in causal_types:
self.cmbCausal.addItem(cs)
qset_cmb_box(self.cmbCausal, 'Causal')
self.cmbCausal.setToolTip('<span>Set the system type. Not implemented yet.</span>')
self.cmbCausal.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.cmbCausal.setEnabled(False)
layHDisplay = QHBoxLayout()
layHDisplay.setAlignment(Qt.AlignLeft)
layHDisplay.addWidget(self.butEnable)
layHDisplay.addWidget(self.cmbPZFrmt)
layHDisplay.addWidget(self.spnDigits)
layHDisplay.addWidget(self.lblDigits)
layHDisplay.addWidget(self.cmbCausal)
layHDisplay.addStretch()
# ---------------------------------------------
# UI Elements for setting the gain
# ---------------------------------------------
self.lblNorm = QLabel(to_html("Normalize:", frmt='bi'), self)
self.cmbNorm = QComboBox(self)
self.cmbNorm.addItems(["None", "1", "Max"])
self.cmbNorm.setToolTip("<span>Set the gain <i>k</i> so that H(f)<sub>max</sub> is "
"either 1 or the max. of the previous system.</span>")
self.lblGain = QLabel(to_html("k =", frmt='bi'), self)
self.ledGain = QLineEdit(self)
self.ledGain.setToolTip("<span>Specify gain factor <i>k</i>"
" (only possible for Normalize = 'None').</span>")
self.ledGain.setText(str(1.))
self.ledGain.setObjectName("ledGain")
layHGain = QHBoxLayout()
layHGain.addWidget(self.lblNorm)
layHGain.addWidget(self.cmbNorm)
layHGain.addWidget(self.lblGain)
layHGain.addWidget(self.ledGain)
layHGain.addStretch()
# ---------------------------------------------
# UI Elements for loading / storing / manipulating cells and rows
# ---------------------------------------------
# self.cmbFilterType = QComboBox(self)
# self.cmbFilterType.setObjectName("comboFilterType")
# self.cmbFilterType.setToolTip("Select between IIR and FIR filte for manual entry.")
# self.cmbFilterType.addItems(["FIR","IIR"])
# self.cmbFilterType.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.butAddCells = QPushButton(self)
self.butAddCells.setIcon(QIcon(':/row_insert_above.svg'))
self.butAddCells.setIconSize(q_icon_size)
self.butAddCells.setToolTip("<SPAN>Select cells to insert a new cell above each selected cell. "
"Use <SHIFT> or <CTRL> to select multiple cells. "
"When nothing is selected, add a row at the end.</SPAN>")
self.butDelCells = QPushButton(self)
self.butDelCells.setIcon(QIcon(':/row_delete.svg'))
self.butDelCells.setIconSize(q_icon_size)
self.butDelCells.setToolTip("<SPAN>Delete selected cell(s) from the table. "
"Use <SHIFT> or <CTRL> to select multiple cells. "
"When nothing is selected, delete the last row.</SPAN>")
self.butSave = QPushButton(self)
self.butSave.setIcon(QIcon(':/upload.svg'))
self.butSave.setIconSize(q_icon_size)
self.butSave.setToolTip("<span>Copy P/Z table to filter dict and update all plots and widgets.</span>")
self.butLoad = QPushButton(self)
self.butLoad.setIcon(QIcon(':/download.svg'))
self.butLoad.setIconSize(q_icon_size)
self.butLoad.setToolTip("Reload P/Z table from filter dict.")
self.butClear = QPushButton(self)
self.butClear.setIcon(QIcon(':/trash.svg'))
self.butClear.setIconSize(q_icon_size)
self.butClear.setToolTip("Clear all table entries.")
self.butFromTable = QPushButton(self)
self.butFromTable.setIconSize(q_icon_size)
self.butToTable = QPushButton(self)
self.butToTable.setIconSize(q_icon_size)
self.but_csv_options = QPushButton(self)
self.but_csv_options.setIcon(QIcon(':/settings.svg'))
self.but_csv_options.setIconSize(q_icon_size)
self.but_csv_options.setToolTip("<span>Select CSV format and whether "
"to copy to/from clipboard or file.</span>")
self.but_csv_options.setCheckable(True)
self.but_csv_options.setChecked(False)
self._set_load_save_icons() # initialize icon / button settings
layHButtonsCoeffs1 = QHBoxLayout()
# layHButtonsCoeffs1.addWidget(self.cmbFilterType)
layHButtonsCoeffs1.addWidget(self.butAddCells)
layHButtonsCoeffs1.addWidget(self.butDelCells)
layHButtonsCoeffs1.addWidget(self.butClear)
layHButtonsCoeffs1.addWidget(self.butSave)
layHButtonsCoeffs1.addWidget(self.butLoad)
layHButtonsCoeffs1.addWidget(self.butFromTable)
layHButtonsCoeffs1.addWidget(self.butToTable)
layHButtonsCoeffs1.addWidget(self.but_csv_options)
layHButtonsCoeffs1.addStretch()
#-------------------------------------------------------------------
# Eps / set zero settings
# ---------------------------------------------------------------------
self.butSetZero = QPushButton("= 0", self)
self.butSetZero.setToolTip("<span>Set selected poles / zeros = 0 with a magnitude < ε. "
"When nothing is selected, test the whole table.</span>")
self.butSetZero.setIconSize(q_icon_size)
lblEps = QLabel(self)
lblEps.setText("<b><i>for ε</i> <</b>")
self.ledEps = QLineEdit(self)
self.ledEps.setToolTip("Specify tolerance value.")
layHButtonsCoeffs2 = QHBoxLayout()
layHButtonsCoeffs2.addWidget(self.butSetZero)
layHButtonsCoeffs2.addWidget(lblEps)
layHButtonsCoeffs2.addWidget(self.ledEps)
layHButtonsCoeffs2.addStretch()
# ######################## Main UI Layout ############################
# layout for frame (UI widget)
layVMainF = QVBoxLayout()
layVMainF.addLayout(layHDisplay)
layVMainF.addLayout(layHGain)
layVMainF.addLayout(layHButtonsCoeffs1)
layVMainF.addLayout(layHButtonsCoeffs2)
# This frame encompasses all UI elements
frmMain = QFrame(self)
frmMain.setLayout(layVMainF)
layVMain = QVBoxLayout()
layVMain.setAlignment(Qt.AlignTop) # this affects only the first widget (intended here)
layVMain.addWidget(frmMain)
layVMain.setContentsMargins(*params['wdg_margins'])
self.setLayout(layVMain)
#--- set initial values from dict ------------
self.spnDigits.setValue(params['FMT_pz'])
self.ledEps.setText(str(self.eps))
#----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs
#----------------------------------------------------------------------
self.but_csv_options.clicked.connect(self._open_csv_win)
class Input_Coeffs_UI(QWidget):
"""
Create the UI for the FilterCoeffs class
"""
sig_rx = pyqtSignal(dict) # incoming
sig_tx = pyqtSignal(dict) # outgoing
from pyfda.libs.pyfda_qt_lib import emit
def __init__(self, parent=None):
super(Input_Coeffs_UI, self).__init__(parent)
self.eps = 1.e-6 # initialize tolerance value
self._construct_UI()
# ------------------------------------------------------------------------------
def process_sig_rx(self, dict_sig=None):
"""
Process signals coming from the CSV pop-up window
"""
# logger.debug("PROCESS_SIG_RX:\n{0}".format(pprint_log(dict_sig)))
if 'closeEvent' in dict_sig:
self._close_csv_win()
self.emit({'ui_changed': 'csv'})
return
elif 'ui_changed' in dict_sig:
self._set_load_save_icons() # update icons file <-> clipboard
# inform e.g. the p/z input widget about changes in CSV options
self.emit({'ui_changed': 'csv'})
# ------------------------------------------------------------------------------
def _construct_UI(self):
"""
Intitialize the widget, consisting of:
- top chkbox row
- coefficient table
- two bottom rows with action buttons
"""
self.bfont = QFont()
self.bfont.setBold(True)
self.bifont = QFont()
self.bifont.setBold(True)
self.bifont.setItalic(True)
# q_icon_size = QSize(20, 20) # optional, size is derived from butEnable
#######################################################################
# frmMain
#
# This frame contains all the buttons
#######################################################################
# ---------------------------------------------
# layHDisplay
#
# UI Elements for controlling the display
# ---------------------------------------------
self.butEnable = PushButton(self, icon=QIcon(':/circle-check.svg'), checked=True)
q_icon_size = self.butEnable.iconSize() # <- uncomment this for manual sizing
self.butEnable.setToolTip(
"<span>Show / hide filter coefficients in an editable table."
" For high order systems, table display might be slow.</span>")
fix_formats = ['Dec', 'Hex', 'Bin', 'CSD']
self.cmbFormat = QComboBox(self)
model = self.cmbFormat.model()
item = QtGui.QStandardItem('Float')
item.setData('child', Qt.AccessibleDescriptionRole)
model.appendRow(item)
item = QtGui.QStandardItem('Fixp.:')
item.setData('parent', Qt.AccessibleDescriptionRole)
item.setData(0, QtGui.QFont.Bold)
item.setFlags(item.flags() & ~Qt.ItemIsEnabled) # | Qt.ItemIsSelectable))
model.appendRow(item)
for idx in range(len(fix_formats)):
item = QtGui.QStandardItem(fix_formats[idx])
# item.setForeground(QtGui.QColor('red'))
model.appendRow(item)
self.cmbFormat.insertSeparator(1)
qset_cmb_box(self.cmbFormat, 'float')
self.cmbFormat.setToolTip('Set the display format.')
self.cmbFormat.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.spnDigits = QSpinBox(self)
self.spnDigits.setRange(0, 16)
self.spnDigits.setValue(params['FMT_ba'])
self.spnDigits.setToolTip("Number of digits to display.")
self.lblDigits = QLabel("Digits", self)
self.lblDigits.setFont(self.bifont)
self.cmbQFrmt = QComboBox(self)
q_formats = [('Norm. Frac.', 'qnfrac'), ('Integer', 'qint'),
('Fractional', 'qfrac')]
for q in q_formats:
self.cmbQFrmt.addItem(*q)
self.lbl_W = QLabel("W = ", self)
self.lbl_W.setFont(self.bifont)
self.ledW = QLineEdit(self)
self.ledW.setToolTip("Specify total wordlength.")
self.ledW.setText("16")
self.ledW.setMaxLength(2) # maximum of 2 digits
self.ledW.setFixedWidth(30) # width of lineedit in points(?)
layHDisplay = QHBoxLayout()
layHDisplay.setAlignment(Qt.AlignLeft)
layHDisplay.addWidget(self.butEnable)
layHDisplay.addWidget(self.cmbFormat)
layHDisplay.addWidget(self.spnDigits)
layHDisplay.addWidget(self.lblDigits)
layHDisplay.addWidget(self.cmbQFrmt)
layHDisplay.addWidget(self.lbl_W)
layHDisplay.addWidget(self.ledW)
layHDisplay.addStretch()
#######################################################################
# frmButtonsCoeffs
#
# This frame contains all buttons for manipulating coefficients
#######################################################################
# -----------------------------------------------------------------
# layHButtonsCoeffs1
#
# UI Elements for loading / storing / manipulating cells and rows
# -----------------------------------------------------------------
self.cmbFilterType = QComboBox(self)
self.cmbFilterType.setObjectName("comboFilterType")
self.cmbFilterType.setToolTip(
"<span>Select between IIR and FIR filter for manual entry."
"Changing the type reloads the filter from the filter dict.</span>")
self.cmbFilterType.addItems(["FIR", "IIR"])
self.cmbFilterType.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.butAddCells = QPushButton(self)
self.butAddCells.setIcon(QIcon(':/row_insert_above.svg'))
self.butAddCells.setIconSize(q_icon_size)
self.butAddCells.setToolTip(
"<span>Select cells to insert a new cell above each selected cell. "
"Use <SHIFT> or <CTRL> to select multiple cells. "
"When nothing is selected, add a row at the end.</span>")
self.butDelCells = QPushButton(self)
self.butDelCells.setIcon(QIcon(':/row_delete.svg'))
self.butDelCells.setIconSize(q_icon_size)
self.butDelCells.setToolTip(
"<span>Delete selected cell(s) from the table. "
"Use <SHIFT> or <CTRL> to select multiple cells. "
"When nothing is selected, delete the last row.</span>")
self.butSave = QPushButton(self)
self.butSave.setIcon(QIcon(':/upload.svg'))
self.butSave.setIconSize(q_icon_size)
self.butSave.setToolTip(
"<span>Copy coefficient table to filter dict and update all plots"
"and widgets.</span>")
self.butLoad = QPushButton(self)
self.butLoad.setIcon(QIcon(':/download.svg'))
self.butLoad.setIconSize(q_icon_size)
self.butLoad.setToolTip("Reload coefficient table from filter dict.")
self.butClear = QPushButton(self)
self.butClear.setIcon(QIcon(':/trash.svg'))
self.butClear.setIconSize(q_icon_size)
self.butClear.setToolTip("Clear all table entries.")
self.butFromTable = QPushButton(self)
self.butFromTable.setIconSize(q_icon_size)
self.butToTable = QPushButton(self)
self.butToTable.setIconSize(q_icon_size)
self.but_csv_options = PushButton(self, icon=QIcon(':/settings.svg'),
checked=False)
self.but_csv_options.setIconSize(q_icon_size)
self.but_csv_options.setToolTip(
"<span>Select CSV format and whether "
"to copy to/from clipboard or file.</span>")
self._set_load_save_icons() # initialize icon / button settings
layHButtonsCoeffs1 = QHBoxLayout()
layHButtonsCoeffs1.addWidget(self.cmbFilterType)
layHButtonsCoeffs1.addWidget(self.butAddCells)
layHButtonsCoeffs1.addWidget(self.butDelCells)
layHButtonsCoeffs1.addWidget(self.butClear)
layHButtonsCoeffs1.addWidget(self.butSave)
layHButtonsCoeffs1.addWidget(self.butLoad)
layHButtonsCoeffs1.addWidget(self.butFromTable)
layHButtonsCoeffs1.addWidget(self.butToTable)
layHButtonsCoeffs1.addWidget(self.but_csv_options)
layHButtonsCoeffs1.addStretch()
# ----------------------------------------------------------------------
# layHButtonsCoeffs2
#
# Eps / set zero settings
# ---------------------------------------------------------------------
self.butSetZero = QPushButton("= 0", self)
self.butSetZero.setToolTip(
"<span>Set selected coefficients = 0 with a magnitude < ε. "
"When nothing is selected, test the whole table.</span>")
self.butSetZero.setIconSize(q_icon_size)
lblEps = QLabel(self)
lblEps.setText("<b><i>for b, a</i> <</b>")
self.ledEps = QLineEdit(self)
self.ledEps.setToolTip("Specify tolerance value.")
layHButtonsCoeffs2 = QHBoxLayout()
layHButtonsCoeffs2.addWidget(self.butSetZero)
layHButtonsCoeffs2.addWidget(lblEps)
layHButtonsCoeffs2.addWidget(self.ledEps)
layHButtonsCoeffs2.addStretch()
# -------------------------------------------------------------------
# Now put the ButtonsCoeffs HBoxes into frmButtonsCoeffs
# ---------------------------------------------------------------------
layVButtonsCoeffs = QVBoxLayout()
layVButtonsCoeffs.addLayout(layHButtonsCoeffs1)
layVButtonsCoeffs.addLayout(layHButtonsCoeffs2)
layVButtonsCoeffs.setContentsMargins(0, 5, 0, 0)
# This frame encompasses all Quantization Settings
self.frmButtonsCoeffs = QFrame(self)
self.frmButtonsCoeffs.setLayout(layVButtonsCoeffs)
# ######################################################################
# frmQSettings
#
# This frame contains all quantization settings
# ######################################################################
# -------------------------------------------------------------------
# layHW_Scale
#
# QFormat and scale settings
# ---------------------------------------------------------------------
lbl_Q = QLabel("Q =", self)
lbl_Q.setFont(self.bifont)
self.ledWI = QLineEdit(self)
self.ledWI.setToolTip("Specify number of integer bits.")
self.ledWI.setText("0")
self.ledWI.setMaxLength(2) # maximum of 2 digits
self.ledWI.setFixedWidth(30) # width of lineedit in points(?)
self.lblDot = QLabel(".", self) # class attribute, visibility is toggled
self.lblDot.setFont(self.bfont)
self.ledWF = QLineEdit(self)
self.ledWF.setToolTip("Specify number of fractional bits.")
self.ledWF.setText("15")
self.ledWF.setMaxLength(2) # maximum of 2 digits
# self.ledWF.setFixedWidth(30) # width of lineedit in points(?)
self.ledWF.setMaximumWidth(30)
self.lblScale = QLabel("<b><i>Scale</i> =</b>", self)
self.ledScale = QLineEdit(self)
self.ledScale.setToolTip(
"Set the scale for converting float to fixpoint representation.")
self.ledScale.setText(str(1))
self.ledScale.setEnabled(False)
layHWI_WF = QHBoxLayout()
layHWI_WF.addWidget(lbl_Q)
layHWI_WF.addWidget(self.ledWI)
layHWI_WF.addWidget(self.lblDot)
layHWI_WF.addWidget(self.ledWF)
layHWI_WF.addStretch()
layHScale = QHBoxLayout()
layHScale.addWidget(self.lblScale)
layHScale.addWidget(self.ledScale)
layHScale.addStretch()
layHW_Scale = QHBoxLayout()
layHW_Scale.addLayout(layHWI_WF)
layHW_Scale.addLayout(layHScale)
# -------------------------------------------------------------------
# layGQOpt
#
# Quantization / Overflow / MSB / LSB settings
# ---------------------------------------------------------------------
lblQOvfl = QLabel("Ovfl.:", self)
lblQOvfl.setFont(self.bifont)
lblQuant = QLabel("Quant.:", self)
lblQuant.setFont(self.bifont)
self.cmbQOvfl = QComboBox(self)
qOvfl = ['wrap', 'sat']
self.cmbQOvfl.addItems(qOvfl)
qset_cmb_box(self.cmbQOvfl, 'sat')
self.cmbQOvfl.setToolTip("Select overflow behaviour.")
# ComboBox size is adjusted automatically to fit the longest element
self.cmbQOvfl.setSizeAdjustPolicy(QComboBox.AdjustToContents)
layHQOvflOpt = QHBoxLayout()
layHQOvflOpt.addWidget(lblQOvfl)
layHQOvflOpt.addWidget(self.cmbQOvfl)
layHQOvflOpt.addStretch()
self.cmbQuant = QComboBox(self)
qQuant = ['none', 'round', 'fix', 'floor']
self.cmbQuant.addItems(qQuant)
qset_cmb_box(self.cmbQuant, 'round')
self.cmbQuant.setToolTip("Select the kind of quantization.")
self.cmbQuant.setSizeAdjustPolicy(QComboBox.AdjustToContents)
layHQuantOpt = QHBoxLayout()
layHQuantOpt.addWidget(lblQuant)
layHQuantOpt.addWidget(self.cmbQuant)
layHQuantOpt.addStretch()
self.butQuant = QPushButton(self)
self.butQuant.setToolTip(
"<span>Quantize selected coefficients / "
"whole table with specified settings.</span>")
self.butQuant.setIcon(QIcon(':/quantize.svg'))
self.butQuant.setIconSize(q_icon_size)
self.butQuant.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
lblMSBtxt = QLabel(self)
lblMSBtxt.setText("<b><i>MSB</i><sub>10</sub> =</b>")
self.lblMSB = QLabel(self)
layHMSB = QHBoxLayout()
layHMSB.addWidget(lblMSBtxt)
layHMSB.addWidget(self.lblMSB)
layHMSB.addStretch()
lblLSBtxt = QLabel(self)
lblLSBtxt.setText("<b><i>LSB</i><sub>10</sub> =</b>")
self.lblLSB = QLabel(self)
layHLSB = QHBoxLayout()
layHLSB.addWidget(lblLSBtxt)
layHLSB.addWidget(self.lblLSB)
layHLSB.addStretch()
layGQOpt = QGridLayout()
layGQOpt.addLayout(layHQOvflOpt, 0, 0)
layGQOpt.addLayout(layHQuantOpt, 0, 1)
layGQOpt.addWidget(self.butQuant, 0, 2, Qt.AlignCenter)
layGQOpt.addLayout(layHMSB, 1, 0)
layGQOpt.addLayout(layHLSB, 1, 1)
# -------------------------------------------------------------------
# Display MAX
# ---------------------------------------------------------------------
lblMAXtxt = QLabel(self)
lblMAXtxt.setText("<b><i>Max =</i></b>")
self.lblMAX = QLabel(self)
layHCoeffs_MAX = QHBoxLayout()
layHCoeffs_MAX.addWidget(lblMAXtxt)
layHCoeffs_MAX.addWidget(self.lblMAX)
layHCoeffs_MAX.addStretch()
#######################################################################
# Now put all the coefficient HBoxes into frmQSettings
# ---------------------------------------------------------------------
layVButtonsQ = QVBoxLayout()
layVButtonsQ.addLayout(layHW_Scale)
layVButtonsQ.addLayout(layGQOpt)
layVButtonsQ.addLayout(layHCoeffs_MAX)
layVButtonsQ.setContentsMargins(0, 0, 0, 0)
# This frame encompasses all Quantization Settings
self.frmQSettings = QFrame(self)
self.frmQSettings.setLayout(layVButtonsQ)
#######################################################################
# ######################## Main UI Layout ############################
#######################################################################
# layout for frame (UI widget)
layVMainF = QVBoxLayout()
layVMainF.addLayout(layHDisplay)
layVMainF.addWidget(self.frmQSettings)
layVMainF.addWidget(QHLine())
layVMainF.addWidget(self.frmButtonsCoeffs)
# This frame encompasses all UI elements
frmMain = QFrame(self)
frmMain.setLayout(layVMainF)
layVMain = QVBoxLayout()
# the following affects only the first widget (intended here)
layVMain.setAlignment(Qt.AlignTop)
layVMain.addWidget(frmMain)
layVMain.setContentsMargins(*params['wdg_margins'])
self.setLayout(layVMain)
#######################################################################
# --- set initial values from dict ------------
self.spnDigits.setValue(params['FMT_ba'])
self.ledEps.setText(str(self.eps))
# ----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs
# ----------------------------------------------------------------------
self.but_csv_options.clicked.connect(self._open_csv_win)
# --------------------------------------------------------------------------
def _open_csv_win(self):
"""
Pop-up window for CSV options
"""
if self.but_csv_options.isChecked():
qstyle_widget(self.but_csv_options, "changed")
else:
qstyle_widget(self.but_csv_options, "normal")
if dirs.csv_options_handle is None:
# no handle to the window? Create a new instance
if self.but_csv_options.isChecked():
# Important: Handle to window must be class attribute, otherwise it
# (and the attached window) is deleted immediately when it goes
# out of scope
dirs.csv_options_handle = CSV_option_box(self)
dirs.csv_options_handle.sig_tx.connect(self.process_sig_rx)
dirs.csv_options_handle.show() # modeless i.e. non-blocking popup window
else:
if not self.but_csv_options.isChecked(): # this should not happen
if dirs.csv_options_handle is None:
logger.warning("CSV options window is already closed!")
else:
dirs.csv_options_handle.close()
self.emit({'ui_changed': 'csv'})
# ------------------------------------------------------------------------------
def _close_csv_win(self):
dirs.csv_options_handle = None
self.but_csv_options.setChecked(False)
qstyle_widget(self.but_csv_options, "normal")
# ------------------------------------------------------------------------------
def _set_load_save_icons(self):
"""
Set icons / tooltipps for loading and saving data to / from file or
clipboard depending on selected options.
"""
if params['CSV']['clipboard']:
self.butFromTable.setIcon(QIcon(':/to_clipboard.svg'))
self.butFromTable.setToolTip(
"<span>Copy table to clipboard, SELECTED items are copied as "
"displayed. When nothing is selected, the whole table "
"is copied with full precision in decimal format.</span>")
self.butToTable.setIcon(QIcon(':/from_clipboard.svg'))
self.butToTable.setToolTip("<span>Copy clipboard to table.</span>")
else:
self.butFromTable.setIcon(QIcon(':/save.svg'))
self.butFromTable.setToolTip(
"<span>"
"Save table to file, SELECTED items are copied as "
"displayed. When nothing is selected, the whole table "
"is copied with full precision in decimal format.</span>")
self.butToTable.setIcon(QIcon(':/file.svg'))
self.butToTable.setToolTip("<span>Load table from file.</span>")
if dirs.csv_options_handle is None:
qstyle_widget(self.but_csv_options, "normal")
self.but_csv_options.setChecked(False)
else:
qstyle_widget(self.but_csv_options, "changed")
self.but_csv_options.setChecked(True)
class Input_PZ_UI(QWidget):
"""
Create the UI for the FilterPZ class
"""
sig_rx = pyqtSignal(object) # incoming
sig_tx = pyqtSignal(object) # outgoing
def __init__(self, parent):
"""
Pass instance `parent` of parent class (FilterCoeffs)
"""
super(Input_PZ_UI, self).__init__(parent)
# self.parent = parent # instance of the parent (not the base) class
self.eps = 1.e-4 # # tolerance value for e.g. setting P/Z to zero
self._construct_UI()
#------------------------------------------------------------------------------
def process_sig_rx(self, dict_sig=None):
"""
Process signals coming from the CSV pop-up window
"""
logger.debug("PROCESS_SIG_RX\n{0}".format(pprint_log(dict_sig)))
if 'closeEvent' in dict_sig:
self._close_csv_win()
self.sig_tx.emit({'sender':__name__, 'ui_changed': 'csv'})
return # probably not needed
elif 'ui_changed' in dict_sig:
self._set_load_save_icons() # update icons file <-> clipboard
# inform e.g. the p/z input widget about changes in CSV options
self.sig_tx.emit({'sender':__name__, 'ui_changed': 'csv'})
#------------------------------------------------------------------------------
def _construct_UI(self):
"""
Intitialize the widget, consisting of:
- top chkbox row
- coefficient table
- two bottom rows with action buttons
"""
self.bfont = QFont()
self.bfont.setBold(True)
self.bifont = QFont()
self.bifont.setBold(True)
self.bifont.setItalic(True)
# q_icon_size = QSize(20, 20) # optional, size is derived from butEnable
# ---------------------------------------------
# UI Elements for controlling the display
# ---------------------------------------------
self.butEnable = QPushButton(self)
self.butEnable.setIcon(QIcon(':/circle-x.svg'))
q_icon_size = self.butEnable.iconSize() # <- set this for manual icon sizing
self.butEnable.setIconSize(q_icon_size)
self.butEnable.setCheckable(True)
self.butEnable.setChecked(True)
self.butEnable.setToolTip("<span>Show / hide poles and zeros in an editable table."
" For high order systems, the table display might be slow.</span>")
self.cmbPZFrmt = QComboBox(self)
pz_formats = [('Cartesian', 'cartesian'), ('Polar (rad)', 'polar_rad'),
('Polar (pi)', 'polar_pi'), ('Polar (°)', 'polar_deg')] # display text, data
# π: u'3C0, °: u'B0, ∠: u'2220
for pz in pz_formats:
self.cmbPZFrmt.addItem(*pz)
self.cmbPZFrmt.setSizeAdjustPolicy(QComboBox.AdjustToContents)
# self.cmbPZFrmt.setEnabled(False)
self.cmbPZFrmt.setToolTip("<span>Set display format for poles and zeros to"
" either cartesian (x + jy) or polar (r * ∠ Ω)."
" Type 'o' for '°', '<' for '∠' and 'pi' for 'π'.</span>")
self.spnDigits = QSpinBox(self)
self.spnDigits.setRange(0,16)
self.spnDigits.setToolTip("Number of digits to display.")
self.lblDigits = QLabel("Digits", self)
self.lblDigits.setFont(self.bifont)
self.cmbCausal = QComboBox(self)
causal_types = ['Causal', 'Acausal', 'Anticausal']
for cs in causal_types:
self.cmbCausal.addItem(cs)
qset_cmb_box(self.cmbCausal, 'Causal')
self.cmbCausal.setToolTip('<span>Set the system type. Not implemented yet.</span>')
self.cmbCausal.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.cmbCausal.setEnabled(False)
layHDisplay = QHBoxLayout()
layHDisplay.setAlignment(Qt.AlignLeft)
layHDisplay.addWidget(self.butEnable)
layHDisplay.addWidget(self.cmbPZFrmt)
layHDisplay.addWidget(self.spnDigits)
layHDisplay.addWidget(self.lblDigits)
layHDisplay.addWidget(self.cmbCausal)
layHDisplay.addStretch()
# ---------------------------------------------
# UI Elements for setting the gain
# ---------------------------------------------
self.lblNorm = QLabel(to_html("Normalize:", frmt='bi'), self)
self.cmbNorm = QComboBox(self)
self.cmbNorm.addItems(["None", "1", "Max"])
self.cmbNorm.setToolTip("<span>Set the gain <i>k</i> so that H(f)<sub>max</sub> is "
"either 1 or the max. of the previous system.</span>")
self.lblGain = QLabel(to_html("k =", frmt='bi'), self)
self.ledGain = QLineEdit(self)
self.ledGain.setToolTip("<span>Specify gain factor <i>k</i>"
" (only possible for Normalize = 'None').</span>")
self.ledGain.setText(str(1.))
self.ledGain.setObjectName("ledGain")
layHGain = QHBoxLayout()
layHGain.addWidget(self.lblNorm)
layHGain.addWidget(self.cmbNorm)
layHGain.addWidget(self.lblGain)
layHGain.addWidget(self.ledGain)
layHGain.addStretch()
# ---------------------------------------------
# UI Elements for loading / storing / manipulating cells and rows
# ---------------------------------------------
# self.cmbFilterType = QComboBox(self)
# self.cmbFilterType.setObjectName("comboFilterType")
# self.cmbFilterType.setToolTip("Select between IIR and FIR filte for manual entry.")
# self.cmbFilterType.addItems(["FIR","IIR"])
# self.cmbFilterType.setSizeAdjustPolicy(QComboBox.AdjustToContents)
self.butAddCells = QPushButton(self)
self.butAddCells.setIcon(QIcon(':/row_insert_above.svg'))
self.butAddCells.setIconSize(q_icon_size)
self.butAddCells.setToolTip("<SPAN>Select cells to insert a new cell above each selected cell. "
"Use <SHIFT> or <CTRL> to select multiple cells. "
"When nothing is selected, add a row at the end.</SPAN>")
self.butDelCells = QPushButton(self)
self.butDelCells.setIcon(QIcon(':/row_delete.svg'))
self.butDelCells.setIconSize(q_icon_size)
self.butDelCells.setToolTip("<SPAN>Delete selected cell(s) from the table. "
"Use <SHIFT> or <CTRL> to select multiple cells. "
"When nothing is selected, delete the last row.</SPAN>")
self.butSave = QPushButton(self)
self.butSave.setIcon(QIcon(':/upload.svg'))
self.butSave.setIconSize(q_icon_size)
self.butSave.setToolTip("<span>Copy P/Z table to filter dict and update all plots and widgets.</span>")
self.butLoad = QPushButton(self)
self.butLoad.setIcon(QIcon(':/download.svg'))
self.butLoad.setIconSize(q_icon_size)
self.butLoad.setToolTip("Reload P/Z table from filter dict.")
self.butClear = QPushButton(self)
self.butClear.setIcon(QIcon(':/trash.svg'))
self.butClear.setIconSize(q_icon_size)
self.butClear.setToolTip("Clear all table entries.")
self.butFromTable = QPushButton(self)
self.butFromTable.setIconSize(q_icon_size)
self.butToTable = QPushButton(self)
self.butToTable.setIconSize(q_icon_size)
self.but_csv_options = QPushButton(self)
self.but_csv_options.setIcon(QIcon(':/settings.svg'))
self.but_csv_options.setIconSize(q_icon_size)
self.but_csv_options.setToolTip("<span>Select CSV format and whether "
"to copy to/from clipboard or file.</span>")
self.but_csv_options.setCheckable(True)
self.but_csv_options.setChecked(False)
self._set_load_save_icons() # initialize icon / button settings
layHButtonsCoeffs1 = QHBoxLayout()
# layHButtonsCoeffs1.addWidget(self.cmbFilterType)
layHButtonsCoeffs1.addWidget(self.butAddCells)
layHButtonsCoeffs1.addWidget(self.butDelCells)
layHButtonsCoeffs1.addWidget(self.butClear)
layHButtonsCoeffs1.addWidget(self.butSave)
layHButtonsCoeffs1.addWidget(self.butLoad)
layHButtonsCoeffs1.addWidget(self.butFromTable)
layHButtonsCoeffs1.addWidget(self.butToTable)
layHButtonsCoeffs1.addWidget(self.but_csv_options)
layHButtonsCoeffs1.addStretch()
#-------------------------------------------------------------------
# Eps / set zero settings
# ---------------------------------------------------------------------
self.butSetZero = QPushButton("= 0", self)
self.butSetZero.setToolTip("<span>Set selected poles / zeros = 0 with a magnitude < ε. "
"When nothing is selected, test the whole table.</span>")
self.butSetZero.setIconSize(q_icon_size)
lblEps = QLabel(self)
lblEps.setText("<b><i>for ε</i> <</b>")
self.ledEps = QLineEdit(self)
self.ledEps.setToolTip("Specify tolerance value.")
layHButtonsCoeffs2 = QHBoxLayout()
layHButtonsCoeffs2.addWidget(self.butSetZero)
layHButtonsCoeffs2.addWidget(lblEps)
layHButtonsCoeffs2.addWidget(self.ledEps)
layHButtonsCoeffs2.addStretch()
# ######################## Main UI Layout ############################
# layout for frame (UI widget)
layVMainF = QVBoxLayout()
layVMainF.addLayout(layHDisplay)
layVMainF.addLayout(layHGain)
layVMainF.addLayout(layHButtonsCoeffs1)
layVMainF.addLayout(layHButtonsCoeffs2)
# This frame encompasses all UI elements
frmMain = QFrame(self)
frmMain.setLayout(layVMainF)
layVMain = QVBoxLayout()
layVMain.setAlignment(Qt.AlignTop) # this affects only the first widget (intended here)
layVMain.addWidget(frmMain)
layVMain.setContentsMargins(*params['wdg_margins'])
self.setLayout(layVMain)
#--- set initial values from dict ------------
self.spnDigits.setValue(params['FMT_pz'])
self.ledEps.setText(str(self.eps))
#----------------------------------------------------------------------
# LOCAL SIGNALS & SLOTs
#----------------------------------------------------------------------
self.but_csv_options.clicked.connect(self._open_csv_win)
#------------------------------------------------------------------------------
def _open_csv_win(self):
"""
Pop-up window for CSV options
"""
if self.but_csv_options.isChecked():
qstyle_widget(self.but_csv_options, "changed")
else:
qstyle_widget(self.but_csv_options, "normal")
if dirs.csv_options_handle is None: # no handle to the window? Create a new instance
if self.but_csv_options.isChecked():
# Important: Handle to window must be class attribute otherwise it
# (and the attached window) is deleted immediately when it goes out of scope
dirs.csv_options_handle = CSV_option_box(self)
dirs.csv_options_handle.sig_tx.connect(self.process_sig_rx)
dirs.csv_options_handle.show() # modeless i.e. non-blocking popup window
else:
if not self.but_csv_options.isChecked(): # this should not happen
if dirs.csv_options_handle is None:
logger.warning("CSV options window is already closed!")
else:
dirs.csv_options_handle.close()
self.sig_tx.emit({'sender':__name__, 'ui_changed': 'csv'})
#------------------------------------------------------------------------------
def _close_csv_win(self):
dirs.csv_options_handle = None
self.but_csv_options.setChecked(False)
qstyle_widget(self.but_csv_options, "normal")
#------------------------------------------------------------------------------
def _set_load_save_icons(self):
"""
Set icons / tooltipps for loading and saving data to / from file or
clipboard depending on selected options.
"""
if params['CSV']['clipboard']:
self.butFromTable.setIcon(QIcon(':/to_clipboard.svg'))
self.butFromTable.setToolTip("<span>"
"Copy table to clipboard, SELECTED items are copied as "
"displayed. When nothing is selected, the whole table "
"is copied with full precision in decimal format.</span>")
self.butToTable.setIcon(QIcon(':/from_clipboard.svg'))
self.butToTable.setToolTip("<span>Copy clipboard to table.</span>")
else:
self.butFromTable.setIcon(QIcon(':/save.svg'))
self.butFromTable.setToolTip("<span>"
"Save table to file, SELECTED items are copied as "
"displayed. When nothing is selected, the whole table "
"is copied with full precision in decimal format.</span>")
self.butToTable.setIcon(QIcon(':/file.svg'))
self.butToTable.setToolTip("<span>Load table from file.</span>")
if dirs.csv_options_handle is None:
qstyle_widget(self.but_csv_options, "normal")
self.but_csv_options.setChecked(False)
else:
qstyle_widget(self.but_csv_options, "changed")
self.but_csv_options.setChecked(True)