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.. currentmodule:: wx.lib.colourchooser.pycolourslider

.. highlight:: python



.. _wx.lib.colourchooser.pycolourslider.PyColourSlider:

==========================================================================================================================================
|phoenix_title|  **wx.lib.colourchooser.pycolourslider.PyColourSlider**
==========================================================================================================================================

A Pure-Python Colour Slider

The colour slider displays transitions from value 0 to value 1 in
HSV, allowing the user to select a colour within the transition
spectrum.

This class is best accompanying by a wxSlider that allows the user
to select a particular colour shade.



|

|class_hierarchy| Class Hierarchy
=================================

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   Inheritance diagram for class <strong>PyColourSlider</strong>:
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   <center><img src="_static/images/inheritance/wx.lib.colourchooser.pycolourslider.PyColourSlider_inheritance.svg" alt="Inheritance diagram of PyColourSlider" usemap="#dummy" class="inheritance"/></center>
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|super_classes| Known Superclasses
==================================

:class:`wx.lib.colourchooser.canvas.Canvas`

|


|method_summary| Methods Summary
================================

================================================================================ ================================================================================
:meth:`~wx.lib.colourchooser.pycolourslider.PyColourSlider.__init__`             Creates a blank slider instance. A colour must be set before the
:meth:`~wx.lib.colourchooser.pycolourslider.PyColourSlider.DrawBuffer`           Actual implementation of the widget's drawing. We simply draw
:meth:`~wx.lib.colourchooser.pycolourslider.PyColourSlider.GetBaseColour`        Return the current colour used as a colour base for filling out
:meth:`~wx.lib.colourchooser.pycolourslider.PyColourSlider.GetVFromClick`        Returns the HSV value "V" based on the location of a mouse click at y offset "pos"
:meth:`~wx.lib.colourchooser.pycolourslider.PyColourSlider.SetBaseColour`        Sets the base, or target colour, to use as the central colour
================================================================================ ================================================================================


|


|api| Class API
===============


.. class:: PyColourSlider(canvas.Canvas)

   A Pure-Python Colour Slider
   
   The colour slider displays transitions from value 0 to value 1 in
   HSV, allowing the user to select a colour within the transition
   spectrum.
   
   This class is best accompanying by a wxSlider that allows the user
   to select a particular colour shade.

   .. method:: __init__(self, parent, id, colour=None)

      Creates a blank slider instance. A colour must be set before the
      slider will be filled in.


   .. method:: DrawBuffer(self)

      Actual implementation of the widget's drawing. We simply draw
      from value 0.0 to value 1.0 in HSV.


   .. method:: GetBaseColour(self)

      Return the current colour used as a colour base for filling out
      the slider.


   .. method:: GetVFromClick(self, pos)

      Returns the HSV value "V" based on the location of a mouse click at y offset "pos"


   .. method:: SetBaseColour(self, colour)

      Sets the base, or target colour, to use as the central colour
      when calculating colour transitions.