def savepdf(self):
self.combbox()
fig = plot.figure()
# plot.subplot(2,1,1)
# plot.plot(self.audio2[0:],color='black',linewidth=0.005,scalex=True)
# plot.title("before")
plot.subplot(2, 1, 2)
max = self.max_freq_slider.value()
min = self.min_freq_slider.value()
self.powerSpectrum, self.freqenciesFound, self.time, self.imageAxis = plot.specgram(
self.signal.real,
Fs=self.samplingrate,
cmap=self.cmap,
vmin=min,
vmax=max)
plot.colorbar()
plot.xlabel('Time')
plot.ylabel('Frequency')
plot.subplot(2, 1, 1)
plot.plot(self.signal[0:].real,
color='blue',
linewidth=0.003,
scalex=True)
plot.title("after")
fn, _ = QtWidgets.QFileDialog.getSaveFileName(
self, "Export PDF", None, "PDF files (.pdf);;All Files()")
if fn:
if QtCore.QFileInfo(fn).suffix() == "": fn += ".pdf"
fig.savefig(fn)
plot.close()
def restore(settings):
finfo = QtCore.QFileInfo(settings.fileName())
if finfo.exists() and finfo.isFile():
for w in QtWidgets.qApp.allWidgets():
mo = w.metaObject()
if w.objectName() and not w.objectName().startswith("qt_"):
settings.beginGroup(w.objectName())
for i in range(mo.propertyCount(),
mo.propertyOffset() - 1, -1):
prop = mo.property(i)
if prop.isWritable():
name = prop.name()
val = settings.value(name, w.property(name))
if str(val).isdigit():
val = int(val)
w.setProperty(name, val)
settings.endGroup()