# Boston, MA 02110-1301, USA.
#
-import threading
-import numpy
-import math
-import wx
+#A macro to apply an index to a key
+index_key = lambda key, i: "%s_%d"%(key, i+1)
-class prop_setter(object):
- def _register_set_prop(self, controller, control_key, *args):
- def set_method(value): controller[control_key] = value
- if args: set_method(args[0])
- setattr(self, 'set_%s'%control_key, set_method)
+def _register_access_method(destination, controller, key):
+ """
+ Helper function for register access methods.
+ This helper creates distinct set and get methods for each key
+ and adds them to the destination object.
+ """
+ def set(value): controller[key] = value
+ setattr(destination, 'set_'+key, set)
+ def get(): return controller[key]
+ setattr(destination, 'get_'+key, get)
-##################################################
-# Custom Data Event
-##################################################
-EVT_DATA = wx.PyEventBinder(wx.NewEventType())
-class DataEvent(wx.PyEvent):
- def __init__(self, data):
- wx.PyEvent.__init__(self, wx.NewId(), EVT_DATA.typeId)
- self.data = data
+def register_access_methods(destination, controller):
+ """
+ Register setter and getter functions in the destination object for all keys in the controller.
+ @param destination the object to get new setter and getter methods
+ @param controller the pubsub controller
+ """
+ for key in controller.keys(): _register_access_method(destination, controller, key)
##################################################
# Input Watcher Thread
##################################################
+import threading
+
class input_watcher(threading.Thread):
"""
Input watcher thread runs forever.
Read messages from the message queue.
Forward messages to the message handler.
"""
- def __init__ (self, msgq, handle_msg):
+ def __init__ (self, msgq, controller, msg_key, arg1_key='', arg2_key=''):
threading.Thread.__init__(self)
self.setDaemon(1)
self.msgq = msgq
- self._handle_msg = handle_msg
+ self._controller = controller
+ self._msg_key = msg_key
+ self._arg1_key = arg1_key
+ self._arg2_key = arg2_key
self.keep_running = True
self.start()
def run(self):
- while self.keep_running: self._handle_msg(self.msgq.delete_head().to_string())
+ while self.keep_running:
+ msg = self.msgq.delete_head()
+ if self._arg1_key: self._controller[self._arg1_key] = msg.arg1()
+ if self._arg2_key: self._controller[self._arg2_key] = msg.arg2()
+ self._controller[self._msg_key] = msg.to_string()
##################################################
# WX Shared Classes
##################################################
+import math
+import wx
+
+EVT_DATA = wx.PyEventBinder(wx.NewEventType())
+class DataEvent(wx.PyEvent):
+ def __init__(self, data):
+ wx.PyEvent.__init__(self, wx.NewId(), EVT_DATA.typeId)
+ self.data = data
+
class LabelText(wx.StaticText):
"""
Label text to give the wx plots a uniform look.
Get the default label text and set the font bold.
"""
def __init__(self, parent, label):
- wx.StaticText.__init__(self, parent, -1, label)
+ wx.StaticText.__init__(self, parent, label=label)
font = self.GetFont()
font.SetWeight(wx.FONTWEIGHT_BOLD)
self.SetFont(font)
+class LabelBox(wx.BoxSizer):
+ def __init__(self, parent, label, widget):
+ wx.BoxSizer.__init__(self, wx.HORIZONTAL)
+ self.Add(wx.StaticText(parent, label=' %s '%label), 1, wx.ALIGN_CENTER_VERTICAL | wx.ALIGN_LEFT)
+ self.Add(widget, 0, wx.ALIGN_CENTER_VERTICAL | wx.ALIGN_RIGHT)
+
class IncrDecrButtons(wx.BoxSizer):
"""
A horizontal box sizer with a increment and a decrement button.
@param on_decr the event handler for decrement
"""
wx.BoxSizer.__init__(self, wx.HORIZONTAL)
- self._incr_button = wx.Button(parent, -1, '+', style=wx.BU_EXACTFIT)
+ self._incr_button = wx.Button(parent, label='+', style=wx.BU_EXACTFIT)
self._incr_button.Bind(wx.EVT_BUTTON, on_incr)
self.Add(self._incr_button, 0, wx.ALIGN_CENTER_VERTICAL)
- self._decr_button = wx.Button(parent, -1, ' - ', style=wx.BU_EXACTFIT)
+ self._decr_button = wx.Button(parent, label=' - ', style=wx.BU_EXACTFIT)
self._decr_button.Bind(wx.EVT_BUTTON, on_decr)
self.Add(self._decr_button, 0, wx.ALIGN_CENTER_VERTICAL)
- def Disable(self, disable=True): self.Enable(not disable)
+ def Disable(self): self.Enable(False)
def Enable(self, enable=True):
if enable:
self._incr_button.Enable()
def __init__(self, parent, controller, control_key, true_label, false_label):
self._controller = controller
self._control_key = control_key
- wx.Button.__init__(self, parent, -1, '', style=wx.BU_EXACTFIT)
+ wx.Button.__init__(self, parent, style=wx.BU_EXACTFIT)
self.Bind(wx.EVT_BUTTON, self._evt_button)
controller.subscribe(control_key, lambda x: self.SetLabel(x and true_label or false_label))
def _evt_checkbox(self, e):
self._controller[self._control_key] = bool(e.IsChecked())
+from gnuradio import eng_notation
+
+class TextBoxController(wx.TextCtrl):
+ def __init__(self, parent, controller, control_key, cast=float):
+ self._controller = controller
+ self._control_key = control_key
+ self._cast = cast
+ wx.TextCtrl.__init__(self, parent, style=wx.TE_PROCESS_ENTER)
+ self.Bind(wx.EVT_TEXT_ENTER, self._evt_enter)
+ controller.subscribe(control_key, lambda x: self.SetValue(eng_notation.num_to_str(x)))
+
+ def _evt_enter(self, e):
+ try: self._controller[self._control_key] = self._cast(eng_notation.str_to_num(self.GetValue()))
+ except: self._controller[self._control_key] = self._controller[self._control_key]
+
class LogSliderController(wx.BoxSizer):
"""
Log slider controller with display label and slider.
Gives logarithmic scaling to slider operation.
"""
- def __init__(self, parent, label, min_exp, max_exp, slider_steps, controller, control_key, formatter=lambda x: ': %.6f'%x):
+ def __init__(self, parent, prefix, min_exp, max_exp, slider_steps, controller, control_key, formatter=lambda x: ': %.6f'%x):
+ self._prefix = prefix
+ self._min_exp = min_exp
+ self._max_exp = max_exp
+ self._controller = controller
+ self._control_key = control_key
+ self._formatter = formatter
wx.BoxSizer.__init__(self, wx.VERTICAL)
- self._label = wx.StaticText(parent, -1, label + formatter(1/3.0))
+ self._label = wx.StaticText(parent, label=prefix + formatter(1/3.0))
self.Add(self._label, 0, wx.EXPAND)
- self._slider = wx.Slider(parent, -1, 0, 0, slider_steps, style=wx.SL_HORIZONTAL)
+ self._slider = wx.Slider(parent, minValue=0, maxValue=slider_steps, style=wx.SL_HORIZONTAL)
self.Add(self._slider, 0, wx.EXPAND)
- def _on_slider_event(event):
- controller[control_key] = \
- 10**(float(max_exp-min_exp)*self._slider.GetValue()/slider_steps + min_exp)
- self._slider.Bind(wx.EVT_SLIDER, _on_slider_event)
- def _on_controller_set(value):
- self._label.SetLabel(label + formatter(value))
- slider_value = slider_steps*(math.log10(value)-min_exp)/(max_exp-min_exp)
- slider_value = min(max(0, slider_value), slider_steps)
- if abs(slider_value - self._slider.GetValue()) > 1:
- self._slider.SetValue(slider_value)
- controller.subscribe(control_key, _on_controller_set)
-
- def Disable(self, disable=True): self.Enable(not disable)
+ self._slider.Bind(wx.EVT_SLIDER, self._on_slider_event)
+ controller.subscribe(control_key, self._on_controller_set)
+
+ def _get_slope(self):
+ return float(self._max_exp-self._min_exp)/self._slider.GetMax()
+
+ def _on_slider_event(self, e):
+ self._controller[self._control_key] = 10**(self._get_slope()*self._slider.GetValue() + self._min_exp)
+
+ def _on_controller_set(self, value):
+ self._label.SetLabel(self._prefix + self._formatter(value))
+ slider_value = (math.log10(value)-self._min_exp)/self._get_slope()
+ slider_value = min(max(self._slider.GetMin(), slider_value), self._slider.GetMax())
+ if abs(slider_value - self._slider.GetValue()) > 1:
+ self._slider.SetValue(slider_value)
+
+ def Disable(self): self.Enable(False)
def Enable(self, enable=True):
if enable:
self._slider.Enable()
self._slider.Disable()
self._label.Disable()
-class DropDownController(wx.BoxSizer):
+class DropDownController(wx.Choice):
"""
Drop down controller with label and chooser.
Srop down selection from a set of choices.
"""
- def __init__(self, parent, label, choices, controller, control_key, size=(-1, -1)):
+ def __init__(self, parent, choices, controller, control_key, size=(-1, -1)):
"""
@param parent the parent window
- @param label the label for the drop down
@param choices a list of tuples -> (label, value)
@param controller the prop val controller
@param control_key the prop key for this control
"""
- wx.BoxSizer.__init__(self, wx.HORIZONTAL)
- self._label = wx.StaticText(parent, -1, ' %s '%label)
- self.Add(self._label, 1, wx.ALIGN_CENTER_VERTICAL)
- self._chooser = wx.Choice(parent, -1, choices=[c[0] for c in choices], size=size)
- def _on_chooser_event(event):
- controller[control_key] = choices[self._chooser.GetSelection()][1]
- self._chooser.Bind(wx.EVT_CHOICE, _on_chooser_event)
- self.Add(self._chooser, 0, wx.ALIGN_CENTER_VERTICAL)
- def _on_controller_set(value):
- #only set the chooser if the value is a possible choice
- for i, choice in enumerate(choices):
- if value == choice[1]: self._chooser.SetSelection(i)
- controller.subscribe(control_key, _on_controller_set)
-
- def Disable(self, disable=True): self.Enable(not disable)
- def Enable(self, enable=True):
- if enable:
- self._chooser.Enable()
- self._label.Enable()
- else:
- self._chooser.Disable()
- self._label.Disable()
+ self._controller = controller
+ self._control_key = control_key
+ self._choices = choices
+ wx.Choice.__init__(self, parent, choices=[c[0] for c in choices], size=size)
+ self.Bind(wx.EVT_CHOICE, self._on_chooser_event)
+ controller.subscribe(control_key, self._on_controller_set)
+
+ def _on_chooser_event(self, e):
+ self._controller[self._control_key] = self._choices[self.GetSelection()][1]
+
+ def _on_controller_set(self, value):
+ #only set the chooser if the value is a possible choice
+ for i, choice in enumerate(self._choices):
+ if value == choice[1]: self.SetSelection(i)
##################################################
# Shared Functions
##################################################
+import numpy
+import math
+
def get_exp(num):
"""
Get the exponent of the number in base 10.
@return the closest number
"""
if num == 0: return 0
- if num > 0: sign = 1
- else: sign = -1
+ sign = num > 0 and 1 or -1
exp = get_exp(num)
nums = numpy.array((1, 2, 5, 10))*(10**exp)
return sign*nums[numpy.argmin(numpy.abs(nums - abs(num)))]
min = mean - rms
max = mean + rms
return min, max
-
-def get_si_components(num):
- """
- Get the SI units for the number.
- Extract the coeff and exponent of the number.
- The exponent will be a multiple of 3.
- @param num the floating point number
- @return the tuple coeff, exp, prefix
- """
- exp = get_exp(num)
- exp -= exp%3
- exp = min(max(exp, -24), 24) #bounds on SI table below
- prefix = {
- 24: 'Y', 21: 'Z',
- 18: 'E', 15: 'P',
- 12: 'T', 9: 'G',
- 6: 'M', 3: 'K',
- 0: '',
- -3: 'm', -6: 'u',
- -9: 'n', -12: 'p',
- -15: 'f', -18: 'a',
- -21: 'z', -24: 'y',
- }[exp]
- coeff = num/10**exp
- return coeff, exp, prefix
-
-def label_format(num):
- """
- Format a floating point number into a presentable string.
- If the number has an small enough exponent, use regular decimal.
- Otherwise, format the number with floating point notation.
- Exponents are normalized to multiples of 3.
- In the case where the exponent was found to be -3,
- it is best to display this as a regular decimal, with a 0 to the left.
- @param num the number to format
- @return a label string
- """
- coeff, exp, prefix = get_si_components(num)
- if -3 <= exp < 3: return '%g'%num
- return '%se%d'%('%.3g'%coeff, exp)
-
-if __name__ == '__main__':
- import random
- for i in range(-25, 25):
- num = random.random()*10**i
- print num, ':', get_si_components(num)
projects / debian / gnuradio / blobdiff