129 lines
4.6 KiB
Python
129 lines
4.6 KiB
Python
import wx
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class AttributeSlider(wx.Panel):
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# Slider which abstracts users values from internal values (because the built in slider does not deal with floats
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# and the like), based on http://wxpython-users.wxwidgets.narkive.com/ekgBzA7u/anyone-ever-thought-of-a-floating-point-slider
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def __init__(self, parent, baseValue, minMod, maxMod):
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wx.Panel.__init__(self, parent)
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self.parent = parent
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self.base_value = baseValue
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self.UserMinValue = minMod
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self.UserMaxValue = maxMod
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# The internal slider basically represents the percentage towards the end of the range. It has to be normalized
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# in this way, otherwise when we start off with a base, if the range is skewed to one side, the base value won't
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# be centered. We use a range of -100,100 so that we can depend on the SliderValue to contain the percentage
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# toward one end
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self.SliderMinValue = -100
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self.SliderMaxValue = 100
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self.SliderValue = 0
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self.statxt1 = wx.StaticText(self, wx.ID_ANY, 'left',
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style=wx.ST_NO_AUTORESIZE | wx.ALIGN_LEFT)
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self.statxt2 = wx.StaticText(self, wx.ID_ANY, 'middle',
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style=wx.ST_NO_AUTORESIZE | wx.ALIGN_CENTRE)
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self.statxt3 = wx.StaticText(self, wx.ID_ANY, 'right',
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style=wx.ST_NO_AUTORESIZE | wx.ALIGN_RIGHT)
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self.statxt1.SetLabel("{0:.3f}".format(self.UserMinValue * self.base_value))
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self.statxt1.SetToolTip("{0:+f}%".format((1-self.UserMinValue)*-100))
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self.statxt2.SetLabel("{0:.3f}".format(self.base_value))
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self.statxt3.SetLabel("{0:.3f}".format(self.UserMaxValue * self.base_value))
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self.statxt3.SetToolTip("{0:+f}%".format((1-self.UserMaxValue)*-100))
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self.slider = wx.Slider(
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self, wx.ID_ANY,
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self.SliderValue,
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self.SliderMinValue,
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self.SliderMaxValue,
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style=wx.SL_HORIZONTAL)
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self.slider.SetTickFreq((self.SliderMaxValue - self.SliderMinValue) / 15)
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self.slider.Bind(wx.EVT_SCROLL, self.OnScroll)
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b = 20
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hsizer1 = wx.BoxSizer(wx.HORIZONTAL)
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hsizer1.Add(self.statxt1, 1, wx.RIGHT, b)
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hsizer1.Add(self.statxt2, 1, wx.LEFT | wx.RIGHT, b)
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hsizer1.Add(self.statxt3, 1, wx.LEFT, b)
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b = 4
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vsizer1 = wx.BoxSizer(wx.VERTICAL)
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vsizer1.Add(hsizer1, 0, wx.EXPAND | wx.ALL, b)
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vsizer1.Add(self.slider, 0, wx.EXPAND | wx.LEFT | wx.TOP | wx.BOTTOM, b)
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self.SetSizerAndFit(vsizer1)
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self.parent.SetClientSize((500, vsizer1.GetSize()[1]))
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def OnScroll(self, event):
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self.SliderValue = self.slider.GetValue()
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# The slkider value tells us when mod we're going to use, depending on its sign
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if self.SliderValue < 0:
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mod = self.UserMinValue
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elif self.SliderValue > 0:
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mod = self.UserMaxValue
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else:
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mod = 1
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# Get the slider value percentage as an absolute value
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slider_mod = abs(self.SliderValue) / 100
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# Gets our new mod by use the slider's percentage to determine where in the spectrum it is
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new_mod = mod + ((1-mod)-((1-mod) * slider_mod))
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# Modifies our base vale, to get out modified value
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newValue = new_mod * self.base_value
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if mod == 1:
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self.statxt2.SetLabel("{0:.3f}".format(newValue))
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else:
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self.statxt2.SetLabel("{0:.3f} ({1:+.3f})".format(newValue, newValue-self.base_value,))
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self.statxt2.SetToolTip("{0:+f}%".format(newValue))
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def SetValue(self, value):
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# todo: check this against values that might be 2.5x and whatnot
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mod = value / self.base_value
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if mod < 1:
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modEnd = -1 * self.UserMinValue
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sliderMod = (modEnd / mod) * 100
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elif mod > 1:
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modEnd = self.UserMaxValue
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sliderMod = ((mod-1)/(modEnd-1)) * 100
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self.slider.SetValue(sliderMod)
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def CalculateUserValue(self):
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# this will just take the slider value and calculate what the user needs to see as their value.
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pass
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class TestAttributeSlider(wx.Frame):
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def __init__(self, parent, id):
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title = 'Slider...'
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pos = wx.DefaultPosition
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size = wx.DefaultSize
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sty = wx.DEFAULT_FRAME_STYLE
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wx.Frame.__init__(self, parent, id, title, pos, size, sty)
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self.panel = AttributeSlider(self, 200, .80, 1.5)
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self.panel.SetValue(160)
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self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
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def OnCloseWindow(self, event):
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self.Destroy()
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if __name__ == "__main__":
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app = wx.App()
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frame = TestAttributeSlider(None, wx.ID_ANY)
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frame.Show()
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app.MainLoop()
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