Floating point slider for wx

direct/src/wxwidgets/WxSlider.py

@@ -0,0 +1,83 @@
+"""
+WxSlider Class: Extended wx.Slider supporting floating point values
+                you should call Enable() after binding any event with this control
+"""
+
+__all__ = ['WxSlider']
+
+import wx
+
+class WxSlider(wx.Slider):
+    def __init__(self, parent, id, value, minValue, maxValue,\
+                 pos=wx.DefaultPosition, size=wx.DefaultSize,\
+                 style=wx.SL_HORIZONTAL, validator=wx.DefaultValidator, name="slider"):
+
+        self.maxValue = maxValue
+        self.minValue = minValue
+        intVal = 100.0 / (self.maxValue - self.minValue) * (value - self.minValue)
+
+        intMin = 0
+        intMax = 100
+        self.textValue = None
+        
+        if style & wx.SL_HORIZONTAL:
+            newStyle = wx.SL_HORIZONTAL
+            if style & wx.SL_LABELS:
+                wx.StaticText(parent, -1, "%.2f"%minValue, (pos[0], pos[1]))
+                strMaxValue = "%.2f"%maxValue
+                wx.StaticText(parent, -1, strMaxValue, (pos[0] + size[0] - len(strMaxValue) * 8 , pos[1]))
+                strValue = "%.2f"%value
+                self.textValue = wx.TextCtrl(parent, -1, strValue,\
+                                             (pos[0] + size[0] /2 - 20, pos[1]), (40, 20),\
+                                             wx.TE_CENTER | wx.TE_PROCESS_ENTER)
+
+                self.textValue.Disable()
+                newPos = (pos[0], pos[1] + 20)
+        else:
+            newStyle = wx.SL_VERTICAL
+            newPos = (pos[0], pos[1] + 40)
+
+        if style & wx.SL_AUTOTICKS:
+            newStyle |= wx.SL_AUTOTICKS
+
+        wx.Slider.__init__(self, parent, id, intVal, intMin, intMax, newPos, size, style=newStyle)
+        self.Disable()
+
+    def GetValue(self):
+        # overriding wx.Slider.GetValue()
+        return (wx.Slider.GetValue(self) * (self.maxValue - self.minValue) / 100.0 + self.minValue)
+
+    def SetValue(self, value):
+        # overriding wx.Slider.SetValue()
+        self.textValue.SetValue("%.2f"%value)
+        intVal = 100.0 / (self.maxValue - self.minValue) * (value - self.minValue)
+        wx.Slider.SetValue(self, intVal)
+
+    def onChange(self, event):
+        # update textValue from slider
+        self.textValue.Clear()
+        self.textValue.WriteText("%.2f"%self.GetValue())
+        event.Skip()
+
+    def onEnter(self, event):
+        # update slider from textValue
+        if self.textValue is None:
+            return
+        intVal = 100.0 / (self.maxValue - self.minValue) * (float(self.textValue.GetValue()) - self.minValue)
+        wx.Slider.SetValue(self, intVal)
+        event.Skip()
+
+    def Disable(self):
+        # overriding wx.Slider.Disable()
+        wx.Slider.Disable(self)
+        self.textValue.Disable()
+        
+    def Enable(self):
+        # overriding wx.Slider.Enable()
+        wx.Slider.Enable(self)
+        self.Bind(wx.EVT_SLIDER, self.onChange)
+        
+        if not self.textValue is None:
+            self.textValue.Enable()
+            self.textValue.Bind(wx.EVT_TEXT_ENTER, self.onEnter)        
+