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Commit	Line	Data
	1	#----------------------------------------------------------------------------
	2	# Name: ColourSelect.py
	3	# Purpose: Colour Box Selection Control
	4	#
	5	# Author: Lorne White, Lorne.White@telusplanet.net
	6	#
	7	# Created: Feb 25, 2001
	8	# Licence: wxWindows license
	9	#----------------------------------------------------------------------------
	10
	11	# creates a colour wxButton with selectable color
	12	# button click provides a colour selection box
	13	# button colour will change to new colour
	14	# GetColour method to get the selected colour
	15
	16	# Updates:
	17	# call back to function if changes made
	18
	19	# Cliff Wells, logiplexsoftware@earthlink.net:
	20	# - Made ColourSelect into "is a button" rather than "has a button"
	21	# - Added label parameter and logic to adjust the label colour according to the background
	22	# colour
	23	# - Added id argument
	24	# - Rearranged arguments to more closely follow wx conventions
	25	# - Simplified some of the code
	26
	27	# Cliff Wells, 2002/02/07
	28	# - Added ColourSelect Event
	29
	30	# 12/01/2003 - Jeff Grimmett (grimmtooth@softhome.net)
	31	#
	32	# o Updated for 2.5 compatability.
	33	#
	34
	35	#----------------------------------------------------------------------------
	36
	37	import wx
	38
	39	#----------------------------------------------------------------------------
	40
	41	wxEVT_COMMAND_COLOURSELECT = wx.NewEventType()
	42
	43	class ColourSelectEvent(wx.PyCommandEvent):
	44	def __init__(self, id, value):
	45	wx.PyCommandEvent.__init__(self, id = id)
	46	self.SetEventType(wxEVT_COMMAND_COLOURSELECT)
	47	self.value = value
	48
	49	def GetValue(self):
	50	return self.value
	51
	52	EVT_COLOURSELECT = wx.PyEventBinder(wxEVT_COMMAND_COLOURSELECT, 1)
	53
	54	#----------------------------------------------------------------------------
	55
	56	class ColourSelect(wx.BitmapButton):
	57	def __init__(self, parent, id, label="", colour=wx.BLACK,
	58	pos=wx.DefaultPosition, size=wx.DefaultSize,
	59	callback=None, style=0):
	60	if label:
	61	w, h = parent.GetTextExtent(label)
	62	w += 6
	63	h += 6
	64	else:
	65	w, h = 20, 20
	66	wx.BitmapButton.__init__(self, parent, id, wx.EmptyBitmap(w,h),
	67	pos=pos, size=size, style=style\|wx.BU_AUTODRAW)
	68
	69	if type(colour) == type( () ):
	70	colour = wx.Colour(*colour)
	71	self.colour = colour
	72	self.SetLabel(label)
	73	self.callback = callback
	74	bmp = self.MakeBitmap()
	75	self.SetBitmap(bmp)
	76	parent.Bind(wx.EVT_BUTTON, self.OnClick, self)
	77
	78
	79	def GetColour(self):
	80	return self.colour
	81
	82	def GetValue(self):
	83	return self.colour
	84
	85	def SetValue(self, colour):
	86	self.SetColour(colour)
	87
	88	def SetColour(self, colour):
	89	if type(colour) == tuple:
	90	colour = wx.Colour(*colour)
	91	if type(colour) == str:
	92	colour = wx.NamedColour(colour)
	93
	94	self.colour = colour
	95	bmp = self.MakeBitmap()
	96	self.SetBitmap(bmp)
	97
	98
	99	def MakeBitmap(self):
	100	bdr = 10
	101	width, height = self.GetSize()
	102	bmp = wx.EmptyBitmap(width-bdr, height-bdr)
	103	dc = wx.MemoryDC()
	104	dc.SelectObject(bmp)
	105	dc.SetFont(self.GetFont())
	106	label = self.GetLabel()
	107	# Just make a little colored bitmap
	108	dc.SetBackground(wx.Brush(self.colour))
	109	dc.Clear()
	110
	111	if label:
	112	# Add a label to it
	113	avg = reduce(lambda a, b: a + b, self.colour.Get()) / 3
	114	fcolour = avg > 128 and wx.BLACK or wx.WHITE
	115	dc.SetTextForeground(fcolour)
	116	dc.DrawLabel(label, (0,0, width-bdr, height-bdr),
	117	wx.ALIGN_CENTER)
	118
	119	dc.SelectObject(wx.NullBitmap)
	120	return bmp
	121
	122
	123	def SetBitmap(self, bmp):
	124	self.SetBitmapLabel(bmp)
	125	self.SetBitmapSelected(bmp)
	126	self.SetBitmapDisabled(bmp)
	127	self.SetBitmapFocus(bmp)
	128	self.SetBitmapSelected(bmp)
	129
	130
	131	def OnChange(self):
	132	wx.PostEvent(self, ColourSelectEvent(self.GetId(), self.GetValue()))
	133	if self.callback is not None:
	134	self.callback()
	135
	136	def OnClick(self, event):
	137	data = wx.ColourData()
	138	data.SetChooseFull(True)
	139	data.SetColour(self.colour)
	140	dlg = wx.ColourDialog(self.GetParent(), data)
	141	changed = dlg.ShowModal() == wx.ID_OK
	142
	143	if changed:
	144	data = dlg.GetColourData()
	145	self.SetColour(data.GetColour())
	146
	147	dlg.Destroy()
	148
	149	# moved after dlg.Destroy, since who knows what the callback will do...
	150	if changed:
	151	self.OnChange()
	152