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import wx
import random
import os
import sys
try:
dirName = os.path.dirname(os.path.abspath(__file__))
except:
dirName = os.path.dirname(os.path.abspath(sys.argv[0]))
sys.path.append(os.path.split(dirName)[0])
try:
from agw import peakmeter as PM
except ImportError: # if it's not there locally, try the wxPython lib.
import wx.lib.agw.peakmeter as PM
class PeakMeterCtrlDemo(wx.Panel):
def __init__(self, parent, log):
wx.Panel.__init__(self, parent)
self.log = log
self.mainPanel = wx.Panel(self)
# Initialize Peak Meter control 1
self.vertPeak = PM.PeakMeterCtrl(self.mainPanel, -1, style=wx.SIMPLE_BORDER, agwStyle=PM.PM_VERTICAL)
# Initialize Peak Meter control 2
self.horzPeak = PM.PeakMeterCtrl(self.mainPanel, -1, style=wx.SUNKEN_BORDER, agwStyle=PM.PM_HORIZONTAL)
self.startButton = wx.Button(self.mainPanel, -1, "Start")
self.stopButton = wx.Button(self.mainPanel, -1, "Stop")
self.staticLine = wx.StaticLine(self.mainPanel)
self.gridCheck = wx.CheckBox(self.mainPanel, -1, "Show Grid")
self.falloffCheck = wx.CheckBox(self.mainPanel, -1, "Show Falloff Effect")
colour = self.mainPanel.GetBackgroundColour()
self.backColour = wx.ColourPickerCtrl(self.mainPanel, col=colour)
self.lowColour = wx.ColourPickerCtrl(self.mainPanel, col=wx.GREEN)
self.mediumColour = wx.ColourPickerCtrl(self.mainPanel, col=wx.NamedColour("yellow"))
self.highColour = wx.ColourPickerCtrl(self.mainPanel, col=wx.RED)
self.timer = wx.Timer(self)
self.SetProperties()
self.DoLayout()
self.BindEvents()
def SetProperties(self):
self.vertPeak.SetMeterBands(10, 15)
self.horzPeak.SetMeterBands(10, 15)
self.falloffCheck.SetValue(1)
def DoLayout(self):
frameSizer = wx.BoxSizer(wx.VERTICAL)
mainSizer = wx.BoxSizer(wx.VERTICAL)
horzSizer = wx.BoxSizer(wx.HORIZONTAL)
rightSizer = wx.BoxSizer(wx.VERTICAL)
bottomSizer = wx.BoxSizer(wx.HORIZONTAL)
checkSizer = wx.BoxSizer(wx.VERTICAL)
colourSizer = wx.FlexGridSizer(2, 4, 1, 10)
horzSizer.Add(self.vertPeak, 0, wx.EXPAND|wx.ALL, 15)
horzSizer.Add(self.horzPeak, 0, wx.EXPAND|wx.ALL, 15)
rightSizer.Add(self.startButton, 0, wx.ALL, 5)
rightSizer.Add(self.stopButton, 0, wx.LEFT|wx.RIGHT, 5)
horzSizer.Add(rightSizer, 0, wx.ALIGN_TOP|wx.ALL, 5)
horzSizer.Add((15, 0))
mainSizer.Add(horzSizer, 0, wx.EXPAND)
mainSizer.Add(self.staticLine, 0, wx.EXPAND|wx.ALL, 5)
checkSizer.Add(self.gridCheck, 0, wx.EXPAND|wx.ALL, 5)
checkSizer.Add(self.falloffCheck, 0, wx.EXPAND|wx.LEFT|wx.BOTTOM, 5)
labelBack = wx.StaticText(self.mainPanel, -1, "Background")
labelLow = wx.StaticText(self.mainPanel, -1, "Low Freq")
labelMed = wx.StaticText(self.mainPanel, -1, "Med Freq")
labelHigh = wx.StaticText(self.mainPanel, -1, "High Freq")
colourSizer.Add(labelBack)
colourSizer.Add(labelLow)
colourSizer.Add(labelMed)
colourSizer.Add(labelHigh)
colourSizer.Add(self.backColour, 0, wx.EXPAND)
colourSizer.Add(self.lowColour, 0, wx.EXPAND)
colourSizer.Add(self.mediumColour, 0, wx.EXPAND)
colourSizer.Add(self.highColour, 0, wx.EXPAND)
bottomSizer.Add(checkSizer, 0, wx.EXPAND|wx.ALL, 5)
bottomSizer.Add((0, 0), 1, wx.EXPAND)
bottomSizer.Add(colourSizer, 0, wx.EXPAND|wx.ALL, 5)
bottomSizer.Add((0, 5))
mainSizer.Add(bottomSizer, 0, wx.EXPAND|wx.BOTTOM|wx.RIGHT, 5)
self.mainPanel.SetSizer(mainSizer)
mainSizer.Layout()
frameSizer.Add(self.mainPanel, 1, wx.EXPAND)
self.SetSizer(frameSizer)
frameSizer.Layout()
def BindEvents(self):
self.Bind(wx.EVT_TIMER, self.OnTimer)
self.Bind(wx.EVT_CHECKBOX, self.OnGrid, self.gridCheck)
self.Bind(wx.EVT_CHECKBOX, self.OnFalloff, self.falloffCheck)
self.Bind(wx.EVT_BUTTON, self.OnStart, self.startButton)
self.Bind(wx.EVT_BUTTON, self.OnStop, self.stopButton)
self.Bind(wx.EVT_COLOURPICKER_CHANGED, self.OnPickColour)
def OnTimer(self, event):
# generate 15 random number and set them as data for the meter
nElements = 15
arrayData = []
for i in xrange(nElements):
nRandom = random.randint(0, 100)
arrayData.append(nRandom)
self.vertPeak.SetData(arrayData, 0, nElements)
self.horzPeak.SetData(arrayData, 0, nElements)
def OnGrid(self, event):
self.vertPeak.ShowGrid(event.IsChecked())
def OnFalloff(self, event):
self.vertPeak.SetFalloffEffect(event.IsChecked())
def OnStart(self, event):
self.timer.Start(1000/2) # 2 fps
self.vertPeak.Start(1000/18) # 18 fps
self.horzPeak.Start(1000/20) # 20 fps
def OnStop(self, event):
self.timer.Stop()
self.vertPeak.Stop()
self.horzPeak.Stop()
def OnPickColour(self, event):
obj = event.GetEventObject()
colour = event.GetColour()
if obj == self.backColour:
self.horzPeak.SetBackgroundColour(colour)
else:
low = self.lowColour.GetColour()
med = self.mediumColour.GetColour()
high = self.highColour.GetColour()
self.horzPeak.SetBandsColour(low, med, high)
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = PeakMeterCtrlDemo(nb, log)
return win
#----------------------------------------------------------------------
overview = PM.__doc__
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
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