mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-25 12:42:41 -06:00
370 lines
14 KiB
Python
370 lines
14 KiB
Python
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"""
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Floater Class: Velocity style controller for floating point values with
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a label, entry (validated), and scale
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"""
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__all__ = ['Floater', 'FloaterWidget', 'FloaterGroup']
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from direct.showbase.TkGlobal import *
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from Tkinter import *
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from Valuator import Valuator, VALUATOR_MINI, VALUATOR_FULL
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from direct.task import Task
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import math, sys, string, Pmw
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FLOATER_WIDTH = 22
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FLOATER_HEIGHT = 18
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class Floater(Valuator):
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def __init__(self, parent = None, **kw):
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INITOPT = Pmw.INITOPT
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optiondefs = (
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('style', VALUATOR_MINI, INITOPT),
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)
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self.defineoptions(kw, optiondefs)
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# Initialize the superclass
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Valuator.__init__(self, parent)
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self.initialiseoptions(Floater)
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def createValuator(self):
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self._valuator = self.createcomponent('valuator',
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(('floater', 'valuator'),),
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None,
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FloaterWidget,
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(self.interior(),),
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command = self.setEntry,
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value = self['value'])
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self._valuator._widget.bind('<Double-ButtonPress-1>', self.mouseReset)
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def packValuator(self):
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# Position components
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if self._label:
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self._label.grid(row=0, column=0, sticky = EW)
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self._entry.grid(row=0, column=1, sticky = EW)
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self._valuator.grid(row=0, column=2, padx = 2, pady = 2)
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self.interior().columnconfigure(0, weight = 1)
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class FloaterWidget(Pmw.MegaWidget):
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def __init__(self, parent = None, **kw):
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#define the megawidget options
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INITOPT = Pmw.INITOPT
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optiondefs = (
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# Appearance
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('width', FLOATER_WIDTH, INITOPT),
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('height', FLOATER_HEIGHT, INITOPT),
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('relief', RAISED, self.setRelief),
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('borderwidth', 2, self.setBorderwidth),
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('background', 'grey75', self.setBackground),
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# Behavior
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# Initial value of floater, use self.set to change value
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('value', 0.0, INITOPT),
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('numDigits', 2, self.setNumDigits),
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# Command to execute on floater updates
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('command', None, None),
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# Extra data to be passed to command function
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('commandData', [], None),
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# Callback's to execute during mouse interaction
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('preCallback', None, None),
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('postCallback', None, None),
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# Extra data to be passed to callback function, needs to be a list
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('callbackData', [], None),
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)
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self.defineoptions(kw, optiondefs)
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# Initialize the superclass
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Pmw.MegaWidget.__init__(self, parent)
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# Set up some local and instance variables
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# Create the components
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interior = self.interior()
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# Current value
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self.value = self['value']
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# The canvas
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width = self['width']
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height = self['height']
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self._widget = self.createcomponent('canvas', (), None,
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Canvas, (interior,),
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width = width,
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height = height,
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background = self['background'],
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highlightthickness = 0,
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scrollregion = (-width/2.0,
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-height/2.0,
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width/2.0,
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height/2.0))
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self._widget.pack(expand = 1, fill = BOTH)
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# The floater icon
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self._widget.create_polygon(-width/2.0, 0, -2.0, -height/2.0,
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-2.0, height/2.0,
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fill = 'grey50',
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tags = ('floater',))
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self._widget.create_polygon(width/2.0, 0, 2.0, height/2.0,
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2.0, -height/2.0,
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fill = 'grey50',
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tags = ('floater',))
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# Add event bindings
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self._widget.bind('<ButtonPress-1>', self.mouseDown)
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self._widget.bind('<B1-Motion>', self.updateFloaterSF)
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self._widget.bind('<ButtonRelease-1>', self.mouseUp)
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self._widget.bind('<Enter>', self.highlightWidget)
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self._widget.bind('<Leave>', self.restoreWidget)
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# Make sure input variables processed
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self.initialiseoptions(FloaterWidget)
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def set(self, value, fCommand = 1):
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"""
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self.set(value, fCommand = 1)
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Set floater to new value, execute command if fCommand == 1
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"""
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# Send command if any
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if fCommand and (self['command'] != None):
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apply(self['command'], [value] + self['commandData'])
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# Record value
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self.value = value
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def updateIndicator(self, value):
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# Nothing visible to update on this type of widget
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pass
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def get(self):
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"""
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self.get()
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Get current floater value
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"""
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return self.value
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## Canvas callback functions
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# Floater velocity controller
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def mouseDown(self, event):
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""" Begin mouse interaction """
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# Exectute user redefinable callback function (if any)
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self['relief'] = SUNKEN
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if self['preCallback']:
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apply(self['preCallback'], self['callbackData'])
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self.velocitySF = 0.0
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self.updateTask = taskMgr.add(self.updateFloaterTask,
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'updateFloater')
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self.updateTask.lastTime = globalClock.getFrameTime()
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def updateFloaterTask(self, state):
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"""
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Update floaterWidget value based on current scaleFactor
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Adjust for time to compensate for fluctuating frame rates
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"""
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currT = globalClock.getFrameTime()
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dt = currT - state.lastTime
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self.set(self.value + self.velocitySF * dt)
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state.lastTime = currT
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return Task.cont
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def updateFloaterSF(self, event):
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"""
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Update velocity scale factor based of mouse distance from origin
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"""
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x = self._widget.canvasx(event.x)
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y = self._widget.canvasy(event.y)
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offset = max(0, abs(x) - Valuator.deadband)
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if offset == 0:
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return 0
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sf = math.pow(Valuator.sfBase,
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self.minExp + offset/Valuator.sfDist)
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if x > 0:
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self.velocitySF = sf
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else:
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self.velocitySF = -sf
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def mouseUp(self, event):
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taskMgr.remove(self.updateTask)
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self.velocitySF = 0.0
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# Execute user redefinable callback function (if any)
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if self['postCallback']:
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apply(self['postCallback'], self['callbackData'])
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self['relief'] = RAISED
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def setNumDigits(self):
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"""
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Adjust minimum exponent to use in velocity task based
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upon the number of digits to be displayed in the result
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"""
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self.minExp = math.floor(-self['numDigits']/
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math.log10(Valuator.sfBase))
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# Methods to modify floater characteristics
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def setRelief(self):
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self.interior()['relief'] = self['relief']
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def setBorderwidth(self):
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self.interior()['borderwidth'] = self['borderwidth']
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def setBackground(self):
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self._widget['background'] = self['background']
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def highlightWidget(self, event):
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self._widget.itemconfigure('floater', fill = 'black')
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def restoreWidget(self, event):
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self._widget.itemconfigure('floater', fill = 'grey50')
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class FloaterGroup(Pmw.MegaToplevel):
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def __init__(self, parent = None, **kw):
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# Default group size
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DEFAULT_DIM = 1
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# Default value depends on *actual* group size, test for user input
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DEFAULT_VALUE = [0.0] * kw.get('dim', DEFAULT_DIM)
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DEFAULT_LABELS = ['v[%d]' % x for x in range(kw.get('dim', DEFAULT_DIM))]
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#define the megawidget options
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INITOPT = Pmw.INITOPT
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optiondefs = (
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('dim', DEFAULT_DIM, INITOPT),
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('side', TOP, INITOPT),
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('title', 'Floater Group', None),
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# A tuple of initial values, one for each floater
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('value', DEFAULT_VALUE, INITOPT),
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# The command to be executed any time one of the floaters is updated
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('command', None, None),
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# A tuple of labels, one for each floater
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('labels', DEFAULT_LABELS, self._updateLabels),
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)
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self.defineoptions(kw, optiondefs)
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# Initialize the toplevel widget
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Pmw.MegaToplevel.__init__(self, parent)
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# Create the components
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interior = self.interior()
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# Get a copy of the initial value (making sure its a list)
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self._value = list(self['value'])
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# The Menu Bar
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self.balloon = Pmw.Balloon()
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menubar = self.createcomponent('menubar', (), None,
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Pmw.MenuBar, (interior,),
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balloon = self.balloon)
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menubar.pack(fill=X)
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# FloaterGroup Menu
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menubar.addmenu('Floater Group', 'Floater Group Operations')
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menubar.addmenuitem(
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'Floater Group', 'command', 'Reset the Floater Group panel',
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label = 'Reset',
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command = lambda s = self: s.reset())
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menubar.addmenuitem(
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'Floater Group', 'command', 'Dismiss Floater Group panel',
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label = 'Dismiss', command = self.withdraw)
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menubar.addmenu('Help', 'Floater Group Help Operations')
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self.toggleBalloonVar = IntVar()
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self.toggleBalloonVar.set(0)
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menubar.addmenuitem('Help', 'checkbutton',
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'Toggle balloon help',
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label = 'Balloon Help',
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variable = self.toggleBalloonVar,
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command = self.toggleBalloon)
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self.floaterList = []
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for index in range(self['dim']):
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# Add a group alias so you can configure the floaters via:
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# fg.configure(Valuator_XXX = YYY)
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f = self.createcomponent(
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'floater%d' % index, (), 'Valuator', Floater,
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(interior,), value = self._value[index],
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text = self['labels'][index])
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# Do this separately so command doesn't get executed during construction
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f['command'] = lambda val, s=self, i=index: s._floaterSetAt(i, val)
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f.pack(side = self['side'], expand = 1, fill = X)
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self.floaterList.append(f)
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# Make sure floaters are initialized
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self.set(self['value'])
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# Make sure input variables processed
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self.initialiseoptions(FloaterGroup)
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def _updateLabels(self):
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if self['labels']:
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for index in range(self['dim']):
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self.floaterList[index]['text'] = self['labels'][index]
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def toggleBalloon(self):
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if self.toggleBalloonVar.get():
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self.balloon.configure(state = 'balloon')
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else:
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self.balloon.configure(state = 'none')
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def get(self):
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return self._value
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def getAt(self, index):
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return self._value[index]
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# This is the command is used to set the groups value
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def set(self, value, fCommand = 1):
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for i in range(self['dim']):
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self._value[i] = value[i]
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# Update floater, but don't execute its command
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self.floaterList[i].set(value[i], 0)
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if fCommand and (self['command'] is not None):
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self['command'](self._value)
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def setAt(self, index, value):
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# Update floater and execute its command
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self.floaterList[index].set(value)
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# This is the command used by the floater
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def _floaterSetAt(self, index, value):
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self._value[index] = value
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if self['command']:
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self['command'](self._value)
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def reset(self):
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self.set(self['value'])
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## SAMPLE CODE
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if __name__ == '__main__':
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# Initialise Tkinter and Pmw.
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root = Toplevel()
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root.title('Pmw Floater demonstration')
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# Dummy command
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def printVal(val):
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print val
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# Create and pack a Floater megawidget.
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mega1 = Floater(root, command = printVal)
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mega1.pack(side = 'left', expand = 1, fill = 'x')
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"""
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# These are things you can set/configure
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# Starting value for floater
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mega1['value'] = 123.456
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mega1['text'] = 'Drive delta X'
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# To change the color of the label:
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mega1.label['foreground'] = 'Red'
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# Max change/update, default is 100
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# To have really fine control, for example
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# mega1['maxVelocity'] = 0.1
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# Number of digits to the right of the decimal point, default = 2
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# mega1['numDigits'] = 5
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"""
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# To create a floater group to set an RGBA value:
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group1 = FloaterGroup(root, dim = 4,
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title = 'Simple RGBA Panel',
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labels = ('R', 'G', 'B', 'A'),
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Valuator_min = 0.0,
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Valuator_max = 255.0,
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Valuator_resolution = 1.0,
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command = printVal)
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# Uncomment this if you aren't running in IDLE
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#root.mainloop()
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