127 lines
4.4 KiB
Python
127 lines
4.4 KiB
Python
"""Defines the DirectSlider class."""
|
|
|
|
__all__ = ['DirectSlider']
|
|
|
|
from panda3d.core import *
|
|
from . import DirectGuiGlobals as DGG
|
|
from .DirectFrame import *
|
|
from .DirectButton import *
|
|
|
|
"""
|
|
import DirectSlider
|
|
d = DirectSlider(borderWidth=(0, 0))
|
|
|
|
"""
|
|
|
|
class DirectSlider(DirectFrame):
|
|
"""
|
|
DirectSlider -- a widget which represents a slider that the
|
|
user can pull left and right to represent a continuous value.
|
|
"""
|
|
def __init__(self, parent = None, **kw):
|
|
optiondefs = (
|
|
# Define type of DirectGuiWidget
|
|
('pgFunc', PGSliderBar, None),
|
|
('state', DGG.NORMAL, None),
|
|
('frameColor', (0.6, 0.6, 0.6, 1), None),
|
|
|
|
('range', (0, 1), self.setRange),
|
|
('value', 0, self.__setValue),
|
|
('scrollSize', 0.01, self.setScrollSize),
|
|
('pageSize', 0.1, self.setPageSize),
|
|
('orientation', DGG.HORIZONTAL, self.setOrientation),
|
|
|
|
# Function to be called repeatedly as slider is moved
|
|
('command', None, None),
|
|
('extraArgs', [], None),
|
|
)
|
|
|
|
if kw.get('orientation') == DGG.VERTICAL:
|
|
# These are the default options for a vertical layout.
|
|
optiondefs += (
|
|
('frameSize', (-0.08, 0.08, -1, 1), None),
|
|
('frameVisibleScale', (0.25, 1), None),
|
|
)
|
|
else:
|
|
# These are the default options for a horizontal layout.
|
|
optiondefs += (
|
|
('frameSize', (-1, 1, -0.08, 0.08), None),
|
|
('frameVisibleScale', (1, 0.25), None),
|
|
)
|
|
|
|
# Merge keyword options with default options
|
|
self.defineoptions(kw, optiondefs)
|
|
|
|
# Initialize superclasses
|
|
DirectFrame.__init__(self, parent)
|
|
|
|
self.thumb = self.createcomponent("thumb", (), None,
|
|
DirectButton, (self,),
|
|
borderWidth = self['borderWidth'])
|
|
if self.thumb['frameSize'] == None and \
|
|
self.thumb.bounds == [0.0, 0.0, 0.0, 0.0]:
|
|
# Compute a default frameSize for the thumb.
|
|
f = self['frameSize']
|
|
if self['orientation'] == DGG.HORIZONTAL:
|
|
self.thumb['frameSize'] = (f[0]*0.05, f[1]*0.05, f[2], f[3])
|
|
else:
|
|
self.thumb['frameSize'] = (f[0], f[1], f[2]*0.05, f[3]*0.05)
|
|
|
|
self.guiItem.setThumbButton(self.thumb.guiItem)
|
|
|
|
# Bind command function
|
|
self.bind(DGG.ADJUST, self.commandFunc)
|
|
|
|
# Call option initialization functions
|
|
self.initialiseoptions(DirectSlider)
|
|
|
|
def setRange(self):
|
|
# Try to preserve the value across a setRange call.
|
|
v = self['value']
|
|
r = self['range']
|
|
self.guiItem.setRange(r[0], r[1])
|
|
self['value'] = v
|
|
|
|
def __setValue(self):
|
|
# This is the internal function that is called when
|
|
# self['value'] is directly assigned.
|
|
self.guiItem.setValue(self['value'])
|
|
|
|
def setValue(self, value):
|
|
# This is the public function that is meant to be called by a
|
|
# user that doesn't like to use (or doesn't understand) the
|
|
# preferred interface of self['value'].
|
|
self['value'] = value
|
|
|
|
def getValue(self):
|
|
return self.guiItem.getValue()
|
|
|
|
def getRatio(self):
|
|
return self.guiItem.getRatio()
|
|
|
|
def setScrollSize(self):
|
|
self.guiItem.setScrollSize(self['scrollSize'])
|
|
|
|
def setPageSize(self):
|
|
self.guiItem.setPageSize(self['pageSize'])
|
|
|
|
def setOrientation(self):
|
|
if self['orientation'] == DGG.HORIZONTAL:
|
|
self.guiItem.setAxis(Vec3(1, 0, 0))
|
|
elif self['orientation'] == DGG.VERTICAL:
|
|
self.guiItem.setAxis(Vec3(0, 0, 1))
|
|
else:
|
|
raise ValueError('Invalid value for orientation: %s' % (self['orientation']))
|
|
|
|
def destroy(self):
|
|
if (hasattr(self, 'thumb')):
|
|
self.thumb.destroy() # ow!
|
|
del self.thumb
|
|
DirectFrame.destroy(self)
|
|
|
|
def commandFunc(self):
|
|
# Store the updated value in self['value']
|
|
self._optionInfo['value'][DGG._OPT_VALUE] = self.guiItem.getValue()
|
|
|
|
if self['command']:
|
|
self['command'](*self['extraArgs'])
|