diff options
Diffstat (limited to 'grc/src/grc_gnuradio/wxgui/callback_controls.py')
| -rw-r--r-- | grc/src/grc_gnuradio/wxgui/callback_controls.py | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/grc/src/grc_gnuradio/wxgui/callback_controls.py b/grc/src/grc_gnuradio/wxgui/callback_controls.py deleted file mode 100644 index 32e5d88422..0000000000 --- a/grc/src/grc_gnuradio/wxgui/callback_controls.py +++ /dev/null @@ -1,303 +0,0 @@ -# Copyright 2008 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# GNU Radio is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -import wx -import sys -from gnuradio import eng_notation - -class LabelText(wx.StaticText): - """Label text class for uniform labels among all controls.""" - - def __init__(self, window, label): - wx.StaticText.__init__(self, window, label=str(label)) - font = self.GetFont() - font.SetWeight(wx.FONTWEIGHT_BOLD) - self.SetFont(font) - -class _control_base(wx.BoxSizer): - """Control base class""" - - def __init__(self, window, callback): - self.window = window - self.callback = callback - wx.BoxSizer.__init__(self, wx.VERTICAL) - - def get_window(self): return self.window - - def call(self): return self.callback(self.get_value()) - - def get_value(self): raise NotImplementedError - - def set_value(self): raise NotImplementedError - -class _chooser_control_base(_control_base): - """House a drop down or radio buttons for variable control.""" - - def __init__(self, window, callback, label='Label', index=0, choices=[0], labels=[]): - """ - Chooser contructor. - Create the slider, text box, and label. - @param window the wx parent window - @param callback call the callback on changes - @param label the label title - @param index the default choice index - @param choices a list of choices - @param labels the choice labels or empty list - """ - #initialize - _control_base.__init__(self, window, callback) - label_text = LabelText(self.get_window(), label) - self.Add(label_text, 0, wx.ALIGN_CENTER) - self.index = index - self.choices = choices - self.labels = map(str, labels or choices) - self._init() - - def _handle_changed(self, event=None): - """ - A change is detected. Call the callback. - """ - try: self.call() - except Exception, e: print >> sys.stderr, 'Error in exec callback from handle changed.\n', e - - def get_value(self): - """ - Update the chooser. - @return one of the possible choices - """ - self._update() - return self.choices[self.index] - -############################################################################################## -# Button Control -############################################################################################## -class button_control(_chooser_control_base): - """House a button for variable control.""" - - def _init(self): - self.button = wx.Button(self.get_window(), label=self.labels[self.index]) - self.button.Bind(wx.EVT_BUTTON, self._handle_changed) - self.Add(self.button, 0, wx.ALIGN_CENTER) - - def _update(self): - self.index = (self.index + 1)%len(self.choices) #circularly increment index - self.button.SetLabel(self.labels[self.index]) - -############################################################################################## -# Drop Down Control -############################################################################################## -class drop_down_control(_chooser_control_base): - """House a drop down for variable control.""" - - def _init(self): - self.drop_down = wx.Choice(self.get_window(), choices=self.labels) - self.Add(self.drop_down, 0, wx.ALIGN_CENTER) - self.drop_down.Bind(wx.EVT_CHOICE, self._handle_changed) - self.drop_down.SetSelection(self.index) - - def _update(self): - self.index = self.drop_down.GetSelection() - -############################################################################################## -# Radio Buttons Control -############################################################################################## -class _radio_buttons_control_base(_chooser_control_base): - """House radio buttons for variable control.""" - - def _init(self): - #create box for radio buttons - radio_box = wx.BoxSizer(self.radio_box_orientation) - panel = wx.Panel(self.get_window()) - panel.SetSizer(radio_box) - self.Add(panel, 0, wx.ALIGN_CENTER) - #create radio buttons - self.radio_buttons = list() - for label in self.labels: - radio_button = wx.RadioButton(panel, label=label) - radio_button.SetValue(False) - self.radio_buttons.append(radio_button) - radio_box.Add(radio_button, 0, self.radio_button_align) - radio_button.Bind(wx.EVT_RADIOBUTTON, self._handle_changed) - #set one radio button active - self.radio_buttons[self.index].SetValue(True) - - def _update(self): - selected_radio_button = filter(lambda rb: rb.GetValue(), self.radio_buttons)[0] - self.index = self.radio_buttons.index(selected_radio_button) - -class radio_buttons_horizontal_control(_radio_buttons_control_base): - radio_box_orientation = wx.HORIZONTAL - radio_button_align = wx.ALIGN_CENTER -class radio_buttons_vertical_control(_radio_buttons_control_base): - radio_box_orientation = wx.VERTICAL - radio_button_align = wx.ALIGN_LEFT - -############################################################################################## -# Slider Control -############################################################################################## -class _slider_control_base(_control_base): - """House a Slider and a Text Box for variable control.""" - - def __init__(self, window, callback, label='Label', value=50, min=0, max=100, num_steps=100, slider_length=200): - """ - Slider contructor. - Create the slider, text box, and label. - @param window the wx parent window - @param callback call the callback on changes - @param label the label title - @param value the default value - @param min the min - @param max the max - @param num_steps the number of steps - @param slider_length the length of the slider bar in pixels - """ - #initialize - _control_base.__init__(self, window, callback) - self.min = float(min) - self.max = float(max) - self.num_steps = int(num_steps) - self.slider_length = slider_length - #create gui elements - label_text_sizer = wx.BoxSizer(self.label_text_orientation) #label and text box container - label_text = LabelText(self.get_window(), '%s: '%str(label)) - self.text_box = text_box = wx.TextCtrl(self.get_window(), style=wx.TE_PROCESS_ENTER) - text_box.Bind(wx.EVT_TEXT_ENTER, self._handle_enter) #bind this special enter hotkey event - for obj in (label_text, text_box): #fill the container with label and text entry box - label_text_sizer.Add(obj, 0, wx.ALIGN_CENTER) - self.Add(label_text_sizer, 0, wx.ALIGN_CENTER) - #make the slider - self.slider = slider = wx.Slider(self.get_window(), size=wx.Size(*self.get_slider_size()), style=self.slider_style) - try: slider.SetRange(0, num_steps) - except Exception, e: - print >> sys.stderr, 'Error in set slider range: "%s".'%e - exit(-1) - slider.Bind(wx.EVT_SCROLL, self._handle_scroll) #bind the scrolling event - self.Add(slider, 0, wx.ALIGN_CENTER) - #init slider and text box - self.set_value(value) - - def get_value(self): - """ - Get the current set value. - @return the value (float) - """ - return self._value - - def set_value(self, value): - """ - Set the current set value. - @param value the value (float) - """ - self._value = value - self._update_slider() - self._update_text_box() - - def _update_slider(self): - """ - Translate the real numerical value into a slider value. - """ - slider_value = (float(self.get_value()) - self.min)*self.num_steps/(self.max - self.min) - self.slider.SetValue(slider_value) - - def _update_text_box(self): - """ - Update the text box value. - Convert the value into engineering notation. - """ - self.text_box.SetValue(eng_notation.num_to_str(self.get_value())) - - def _handle_scroll(self, event=None): - """ - A scroll event is detected. Read the slider, call the callback. - """ - slider_value = self.slider.GetValue() - new_value = slider_value*(self.max - self.min)/self.num_steps + self.min - self.set_value(new_value) - try: self.call() - except Exception, e: print >> sys.stderr, 'Error in exec callback from handle scroll.\n', e - - def _handle_enter(self, event=None): - """ - An enter key was pressed. Read the text box, call the callback. - """ - new_value = eng_notation.str_to_num(self.text_box.GetValue()) - self.set_value(new_value) - try: self.call() - except Exception, e: print >> sys.stderr, 'Error in exec callback from handle enter.\n', e - -class slider_horizontal_control(_slider_control_base): - label_text_orientation = wx.HORIZONTAL - slider_style = wx.SL_HORIZONTAL - def get_slider_size(self): return self.slider_length, -1 -class slider_vertical_control(_slider_control_base): - label_text_orientation = wx.VERTICAL - slider_style = wx.SL_VERTICAL - def get_slider_size(self): return -1, self.slider_length - -############################################################################################## -# Text Box Control -############################################################################################## -class text_box_control(_control_base): - """House a Text Box for variable control.""" - - def __init__(self, window, callback, label='Label', value=50): - """ - Text box contructor. - Create the text box, and label. - @param window the wx parent window - @param callback call the callback on changes - @param label the label title - @param value the default value - """ - #initialize - _control_base.__init__(self, window, callback) - #create gui elements - label_text_sizer = wx.BoxSizer(wx.HORIZONTAL) #label and text box container - label_text = LabelText(self.get_window(), '%s: '%str(label)) - self.text_box = text_box = wx.TextCtrl(self.get_window(), value=str(value), style=wx.TE_PROCESS_ENTER) - text_box.Bind(wx.EVT_TEXT_ENTER, self._handle_enter) #bind this special enter hotkey event - for obj in (label_text, text_box): #fill the container with label and text entry box - label_text_sizer.Add(obj, 0, wx.ALIGN_CENTER) - self.Add(label_text_sizer, 0, wx.ALIGN_CENTER) - #detect string mode - self._string_mode = isinstance(value, str) - - def get_value(self): - """ - Get the current set value. - @return the value (float) - """ - return self._value - - def _handle_enter(self, event=None): - """ - An enter key was pressed. Read the text box, call the callback. - If the text cannot be evaluated, do not try callback. - Do not evaluate the text box value in string mode. - """ - if self._string_mode: - self._value = str(self.text_box.GetValue()) - else: - try: self._value = eval(self.text_box.GetValue()) - except Exception, e: - print >> sys.stderr, 'Error in evaluate value from handle enter.\n', e - return - try: self.call() - except Exception, e: print >> sys.stderr, 'Error in exec callback from handle enter.\n', e |