wxWidgets/wxPython/wx/lib/colourselect.py
2003-11-12 21:34:20 +00:00

91 lines
3.0 KiB
Python

#----------------------------------------------------------------------------
# Name: ColourSelect.py
# Purpose: Colour Box Selection Control
#
# Author: Lorne White, Lorne.White@telusplanet.net
#
# Created: Feb 25, 2001
# Licence: wxWindows license
#----------------------------------------------------------------------------
from wxPython.wx import *
# creates a colour wxButton with selectable color
# button click provides a colour selection box
# button colour will change to new colour
# GetColour method to get the selected colour
# Updates:
# call back to function if changes made
# Cliff Wells, logiplexsoftware@earthlink.net:
# - Made ColourSelect into "is a button" rather than "has a button"
# - Added label parameter and logic to adjust the label colour according to the background
# colour
# - Added id argument
# - Rearranged arguments to more closely follow wx conventions
# - Simplified some of the code
# Cliff Wells, 2002/02/07
# - Added ColourSelect Event
EVT_COMMAND_COLOURSELECT = wxNewId()
class ColourSelectEvent(wxPyCommandEvent):
def __init__(self, id, value):
wxPyCommandEvent.__init__(self, id = id)
self.SetEventType(EVT_COMMAND_COLOURSELECT)
self.value = value
def GetValue(self):
return self.value
def EVT_COLOURSELECT(win, id, func):
win.Connect(id, -1, EVT_COMMAND_COLOURSELECT, func)
class ColourSelect(wxButton):
def __init__(self, parent, id, label = "", bcolour=(0, 0, 0),
pos = wxDefaultPosition, size = wxDefaultSize,
callback = None):
wxButton.__init__(self, parent, id, label, pos=pos, size=size)
self.SetColour(bcolour)
self.callback = callback
EVT_BUTTON(parent, self.GetId(), self.OnClick)
def GetColour(self):
return self.set_colour
def GetValue(self):
return self.set_colour
def SetColour(self, bcolour):
self.set_colour_val = wxColor(bcolour[0], bcolour[1], bcolour[2])
self.SetBackgroundColour(self.set_colour_val)
avg = reduce(lambda a, b: a + b, bcolour) / 3
fcolour = avg > 128 and (0, 0, 0) or (255, 255, 255)
self.SetForegroundColour(apply(wxColour, fcolour))
self.set_colour = bcolour
def SetValue(self, bcolour):
self.SetColour(bcolour)
def OnChange(self):
wxPostEvent(self, ColourSelectEvent(self.GetId(), self.GetValue()))
if self.callback is not None:
self.callback()
def OnClick(self, event):
data = wxColourData()
data.SetChooseFull(True)
data.SetColour(self.set_colour_val)
dlg = wxColourDialog(self.GetParent(), data)
changed = dlg.ShowModal() == wxID_OK
if changed:
data = dlg.GetColourData()
self.SetColour(data.GetColour().Get())
dlg.Destroy()
if changed:
self.OnChange() # moved after dlg.Destroy, since who knows what the callback will do...