def __init__(self, parent):
super(MplWidget, self).__init__(parent)
# Create the mpl figure and subplot (white bg, 100 dots-per-inch).
# Construct the canvas with the figure:
self.plt_lim = [] # define variable for x,y plot limits
if cmp_version("matplotlib", "2.2.0") >= 0:
self.fig = Figure(constrained_layout=True)
else:
self.fig = Figure()
self.pltCanv = FigureCanvas(self.fig)
self.pltCanv.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
# Needed for mouse modifiers (x,y, <CTRL>, ...):
# Key press events in general are not processed unless you
# "activate the focus of Qt onto your mpl canvas"
# http://stackoverflow.com/questions/22043549/matplotlib-and-qt-mouse-press-event-key-is-always-none
self.pltCanv.setFocusPolicy(QtCore.Qt.ClickFocus)
self.pltCanv.setFocus()
self.pltCanv.updateGeometry()
# Create a custom navigation toolbar, tied to the canvas and
# initialize toolbar settings
#
#self.mplToolbar = NavigationToolbar(self.pltCanv, self) # original
self.mplToolbar = MplToolbar(self.pltCanv,
self) # inherits all methods
self.mplToolbar.lock_zoom = False
#self.mplToolbar.enable_plot(state = True)
self.mplToolbar.sig_tx.connect(self.process_signals)
#=============================================
# Main plot widget layout
#=============================================
self.layVMainMpl = QVBoxLayout()
self.layVMainMpl.addWidget(self.mplToolbar)
self.layVMainMpl.addWidget(self.pltCanv)
self.setLayout(self.layVMainMpl)
QLabel, QPixmap, QVBoxLayout, QHBoxLayout, pyqtSignal,
QFrame, QEvent, QSizePolicy)
import numpy as np
import pyfda.filterbroker as fb # importing filterbroker initializes all its globals
import pyfda.pyfda_dirs as dirs
from pyfda.pyfda_lib import qstr, cmp_version, pprint_log
import pyfda.pyfda_fix_lib as fx
from pyfda.pyfda_io_lib import extract_file_ext
from pyfda.pyfda_qt_lib import qget_cmb_box, qset_cmb_box, qstyle_widget
from pyfda.fixpoint_widgets.fixpoint_helpers import UI_W, UI_Q
from pyfda.pyfda_rc import params
# when migen is present, instantiate the fixpoint widget
if cmp_version("migen",
"0.1") >= -1: # currently, version cannot be determined
import migen
HAS_MIGEN = True
else:
HAS_MIGEN = False
# when deltasigma module is present, add a corresponding entry to the combobox
try:
import deltasigma
HAS_DS = True
except ImportError:
HAS_DS = False
#------------------------------------------------------------------------------
classes = {
'Input_Fixpoint_Specs': 'Fixpoint'
from ..compat import (Qt, QWidget, QPushButton, QComboBox, QFD, QSplitter,
QLabel, QPixmap, QVBoxLayout, QHBoxLayout, pyqtSignal,
QFrame, QEvent, QSizePolicy)
#from myhdl import (toVerilog, toVHDL, Signal, always, always_comb, delay,
# instance, instances, intbv, traceSignals,
# Simulation, StopSimulation)
import pyfda.filterbroker as fb # importing filterbroker initializes all its globals
import pyfda.pyfda_dirs as dirs
from pyfda.pyfda_lib import cmp_version
from pyfda.pyfda_io_lib import extract_file_ext
from pyfda.pyfda_qt_lib import qstr, qget_cmb_box
from pyfda.pyfda_rc import params
if cmp_version("myhdl", "0.10") >= 0:
import myhdl
HAS_MYHDL = True
else:
HAS_MYHDL = False
# see C. Feltons "FPGA IIR Lowpass Direct Form I Filter Generator"
# @ http://www.dsprelated.com/showcode/211.php
#------------------------------------------------------------------------------
class Input_Fixpoint_Specs(QWidget):
"""
Create the widget for entering exporting / importing / saving / loading data
"""
QEvent, QSizePolicy)
import numpy as np
import pyfda.filterbroker as fb # importing filterbroker initializes all its globals
import pyfda.pyfda_dirs as dirs
from pyfda.pyfda_lib import qstr, cmp_version
import pyfda.pyfda_fix_lib as fx
from pyfda.pyfda_io_lib import extract_file_ext
from pyfda.pyfda_qt_lib import qget_cmb_box, qstyle_widget
from pyfda.fixpoint_widgets.fixpoint_helpers import UI_W, UI_Q
from pyfda.pyfda_rc import params
# check whether myhdl >= 0.10 is installed. BUT version 0.10 is incompatible
# with Python 3.7, it is not installed.
if cmp_version("myhdl", "0.10") >= 0: # suitable combination of Py and myhdl found
import myhdl
HAS_MYHDL = True
else:
HAS_MYHDL = False
#------------------------------------------------------------------------------
class Input_Fixpoint_Specs(QWidget):
"""
Create the widget that holds the dynamically loaded fixpoint filter ui
"""
# emit a signal when the image has been resized
sig_resize = pyqtSignal()
# incoming, connected to input_tab_widget.sig_tx
sig_rx = pyqtSignal(object)
QFrame, QEvent, QSizePolicy)
import numpy as np
import pyfda.filterbroker as fb # importing filterbroker initializes all its globals
import pyfda.pyfda_dirs as dirs
from pyfda.pyfda_lib import qstr, cmp_version
import pyfda.pyfda_fix_lib as fx
from pyfda.pyfda_io_lib import extract_file_ext
from pyfda.pyfda_qt_lib import qget_cmb_box, qstyle_widget
from pyfda.fixpoint_widgets.fixpoint_helpers import UI_W, UI_Q
from pyfda.pyfda_rc import params
# check whether myhdl >= 0.10 is installed. BUT version 0.10 is incompatible
# with Python 3.7, it is not installed.
if cmp_version("myhdl",
"0.10") >= 0: # suitable combination of Py and myhdl found
import myhdl
HAS_MYHDL = True
else:
HAS_MYHDL = False
#------------------------------------------------------------------------------
class Input_Fixpoint_Specs(QWidget):
"""
Create the widget that holds the dynamically loaded fixpoint filter ui
"""
# emit a signal when the image has been resized
sig_resize = pyqtSignal()
# incoming, connected to input_tab_widget.sig_tx