"""
PyColourChooser
Copyright (C) 2002 Michael Gilfix <mgilfix@eecs.tufts.edu>
This file is part of PyColourChooser.
This version of PyColourChooser is open source; you can redistribute it
and/or modify it under the licensed terms.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
"""
# 12/14/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o 2.5 compatability update.
#
# 12/21/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o wxPyColorChooser -> PyColorChooser
# o wxPyColourChooser -> PyColourChooser
# o Added wx.InitAllImageHandlers() to test code since
# that's where it belongs.
#
import wx
import pycolourbox
import pypalette
import pycolourslider
import colorsys
import intl
from intl import _# _
class PyColourChooser(wx.Panel):
"""A Pure-Python implementation of the colour chooser dialog.
The PyColourChooser is a pure python implementation of the colour
chooser dialog. It's useful for embedding the colour choosing functionality
inside other widgets, when the pop-up dialog is undesirable. It can also
be used as a drop-in replacement on the GTK platform, as the native
dialog is kind of ugly.
"""
colour_names = [
'ORANGE',
'GOLDENROD',
'WHEAT',
'SPRING GREEN',
'SKY BLUE',
'SLATE BLUE',
'MEDIUM VIOLET RED',
'PURPLE',
'RED',
'YELLOW',
'MEDIUM SPRING GREEN',
'PALE GREEN',
'CYAN',
'LIGHT STEEL BLUE',
'ORCHID',
'LIGHT MAGENTA',
'BROWN',
'YELLOW',
'GREEN',
'CADET BLUE',
'MEDIUM BLUE',
'MAGENTA',
'MAROON',
'ORANGE RED',
'FIREBRICK',
'CORAL',
'FOREST GREEN',
'AQUAMARINE',
'BLUE',
'NAVY',
'THISTLE',
'MEDIUM VIOLET RED',
'INDIAN RED',
'GOLD',
'MEDIUM SEA GREEN',
'MEDIUM BLUE',
'MIDNIGHT BLUE',
'GREY',
'PURPLE',
'KHAKI',
'BLACK',
'MEDIUM FOREST GREEN',
'KHAKI',
'DARK GREY',
'SEA GREEN',
'LIGHT GREY',
'MEDIUM SLATE BLUE',
'WHITE',
]
# Generate the custom colours. These colours are shared across
# all instances of the colour chooser
NO_CUSTOM_COLOURS = 16
custom_colours = [ (wx.Colour(255, 255, 255),
pycolourslider.PyColourSlider.HEIGHT / 2)
] * NO_CUSTOM_COLOURS
last_custom = 0
idADD_CUSTOM = wx.NewId()
idSCROLL = wx.NewId()
def __init__(self, parent, id):
"""Creates an instance of the colour chooser. Note that it is best to
accept the given size of the colour chooser as it is currently not
resizeable."""
wx.Panel.__init__(self, parent, id)
self.basic_label = wx.StaticText(self, -1, _("Basic Colours:"))
self.custom_label = wx.StaticText(self, -1, _("Custom Colours:"))
self.add_button = wx.Button(self, self.idADD_CUSTOM, _("Add to Custom Colours"))
self.Bind(wx.EVT_BUTTON, self.onAddCustom, self.add_button)
# Since we're going to be constructing widgets that require some serious
# computation, let's process any events (like redraws) right now
wx.Yield()
# Create the basic colours palette
self.colour_boxs = [ ]
colour_grid = wx.GridSizer(6, 8)
for name in self.colour_names:
new_id = wx.NewId()
box = pycolourbox.PyColourBox(self, new_id)
box.GetColourBox().Bind(wx.EVT_LEFT_DOWN, lambda x, b=box: self.onBasicClick(x, b))
self.colour_boxs.append(box)
colour_grid.Add(box, 0, wx.EXPAND)
# Create the custom colours palette
self.custom_boxs = [ ]
custom_grid = wx.GridSizer(2, 8)
for wxcolour, slidepos in self.custom_colours:
new_id = wx.NewId()
custom = pycolourbox.PyColourBox(self, new_id)
custom.GetColourBox().Bind(wx.EVT_LEFT_DOWN, lambda x, b=custom: self.onCustomClick(x, b))
custom.SetColour(wxcolour)
custom_grid.Add(custom, 0, wx.EXPAND)
self.custom_boxs.append(custom)
csizer = wx.BoxSizer(wx.VERTICAL)
csizer.Add((1, 25))
csizer.Add(self.basic_label, 0, wx.EXPAND)
csizer.Add((1, 5))
csizer.Add(colour_grid, 0, wx.EXPAND)
csizer.Add((1, 25))
csizer.Add(self.custom_label, 0, wx.EXPAND)
csizer.Add((1, 5))
csizer.Add(custom_grid, 0, wx.EXPAND)
csizer.Add((1, 5))
csizer.Add(self.add_button, 0, wx.EXPAND)
self.palette = pypalette.PyPalette(self, -1)
self.colour_slider = pycolourslider.PyColourSlider(self, -1)
self.slider = wx.Slider(
self, self.idSCROLL, 86, 0, self.colour_slider.HEIGHT - 1,
style=wx.SL_VERTICAL, size=(15, self.colour_slider.HEIGHT)
)
self.Bind(wx.EVT_COMMAND_SCROLL, self.onScroll, self.slider)
psizer = wx.BoxSizer(wx.HORIZONTAL)
psizer.Add(self.palette, 0, 0)
psizer.Add((10, 1))
psizer.Add(self.colour_slider, 0, wx.ALIGN_CENTER_VERTICAL)
psizer.Add(self.slider, 0, wx.ALIGN_CENTER_VERTICAL)
# Register mouse events for dragging across the palette
self.palette.Bind(wx.EVT_LEFT_DOWN, self.onPaletteDown)
self.palette.Bind(wx.EVT_LEFT_UP, self.onPaletteUp)
self.palette.Bind(wx.EVT_MOTION, self.onPaletteMotion)
self.mouse_down = False
self.solid = pycolourbox.PyColourBox(self, -1, size=(75, 50))
slabel = wx.StaticText(self, -1, _("Solid Colour"))
ssizer = wx.BoxSizer(wx.VERTICAL)
ssizer.Add(self.solid, 0, 0)
ssizer.Add((1, 2))
ssizer.Add(slabel, 0, wx.ALIGN_CENTER_HORIZONTAL)
hlabel = wx.StaticText(self, -1, _("H:"))
self.hentry = wx.TextCtrl(self, -1)
self.hentry.SetSize((40, -1))
slabel = wx.StaticText(self, -1, _("S:"))
self.sentry = wx.TextCtrl(self, -1)
self.sentry.SetSize((40, -1))
vlabel = wx.StaticText(self, -1, _("V:"))
self.ventry = wx.TextCtrl(self, -1)
self.ventry.SetSize((40, -1))
hsvgrid = wx.FlexGridSizer(1, 6, 2, 2)
hsvgrid.AddMany ([
(hlabel, 0, wx.ALIGN_CENTER_VERTICAL), (self.hentry, 0, wx.FIXED_MINSIZE),
(slabel, 0, wx.ALIGN_CENTER_VERTICAL), (self.sentry, 0, wx.FIXED_MINSIZE),
(vlabel, 0, wx.ALIGN_CENTER_VERTICAL), (self.ventry, 0, wx.FIXED_MINSIZE),
])
rlabel = wx.StaticText(self, -1, _("R:"))
self.rentry = wx.TextCtrl(self, -1)
self.rentry.SetSize((40, -1))
glabel = wx.StaticText(self, -1, _("G:"))
self.gentry = wx.TextCtrl(self, -1)
self.gentry.SetSize((40, -1))
blabel = wx.StaticText(self, -1, _("B:"))
self.bentry = wx.TextCtrl(self, -1)
self.bentry.SetSize((40, -1))
lgrid = wx.FlexGridSizer(1, 6, 2, 2)
lgrid.AddMany([
(rlabel, 0, wx.ALIGN_CENTER_VERTICAL), (self.rentry, 0, wx.FIXED_MINSIZE),
(glabel, 0, wx.ALIGN_CENTER_VERTICAL), (self.gentry, 0, wx.FIXED_MINSIZE),
(blabel, 0, wx.ALIGN_CENTER_VERTICAL), (self.bentry, 0, wx.FIXED_MINSIZE),
])
gsizer = wx.GridSizer(2, 1)
gsizer.SetVGap (10)
gsizer.SetHGap (2)
gsizer.Add(hsvgrid, 0, wx.ALIGN_CENTER_VERTICAL | wx.ALIGN_CENTER_HORIZONTAL)
gsizer.Add(lgrid, 0, wx.ALIGN_CENTER_VERTICAL | wx.ALIGN_CENTER_HORIZONTAL)
hsizer = wx.BoxSizer(wx.HORIZONTAL)
hsizer.Add(ssizer, 0, wx.ALIGN_CENTER_VERTICAL | wx.ALIGN_CENTER_HORIZONTAL)
hsizer.Add(gsizer, 0, wx.ALIGN_CENTER_VERTICAL | wx.ALIGN_CENTER_HORIZONTAL)
vsizer = wx.BoxSizer(wx.VERTICAL)
vsizer.Add((1, 5))
vsizer.Add(psizer, 0, 0)
vsizer.Add((1, 15))
vsizer.Add(hsizer, 0, wx.EXPAND)
sizer = wx.BoxSizer(wx.HORIZONTAL)
sizer.Add((5, 1))
sizer.Add(csizer, 0, wx.EXPAND)
sizer.Add((10, 1))
sizer.Add(vsizer, 0, wx.EXPAND)
self.SetAutoLayout(True)
self.SetSizer(sizer)
sizer.Fit(self)
self.InitColours()
self.UpdateColour(self.solid.GetColour())
def InitColours(self):
"""Initializes the pre-set palette colours."""
for i in range(len(self.colour_names)):
colour = wx.TheColourDatabase.FindColour(self.colour_names[i])
self.colour_boxs[i].SetColourTuple((colour.Red(),
colour.Green(),
colour.Blue()))
def onBasicClick(self, event, box):
"""Highlights the selected colour box and updates the solid colour
display and colour slider to reflect the choice."""
if hasattr(self, '_old_custom_highlight'):
self._old_custom_highlight.SetHighlight(False)
if hasattr(self, '_old_colour_highlight'):
self._old_colour_highlight.SetHighlight(False)
box.SetHighlight(True)
self._old_colour_highlight = box
self.UpdateColour(box.GetColour())
def onCustomClick(self, event, box):
"""Highlights the selected custom colour box and updates the solid
colour display and colour slider to reflect the choice."""
if hasattr(self, '_old_colour_highlight'):
self._old_colour_highlight.SetHighlight(False)
if hasattr(self, '_old_custom_highlight'):
self._old_custom_highlight.SetHighlight(False)
box.SetHighlight(True)
self._old_custom_highlight = box
# Update the colour panel and then the slider accordingly
box_index = self.custom_boxs.index(box)
base_colour, slidepos = self.custom_colours[box_index]
self.UpdateColour(box.GetColour())
self.slider.SetValue(slidepos)
def onAddCustom(self, event):
"""Adds a custom colour to the custom colour box set. Boxes are
chosen in a round-robin fashion, eventually overwriting previously
added colours."""
# Store the colour and slider position so we can restore the
# custom colours just as they were
self.setCustomColour(self.last_custom,
self.solid.GetColour(),
self.colour_slider.GetBaseColour(),
self.slider.GetValue())
self.last_custom = (self.last_custom + 1) % self.NO_CUSTOM_COLOURS
def setCustomColour (self, index, true_colour, base_colour, slidepos):
"""Sets the custom colour at the given index. true_colour is wxColour
object containing the actual rgb value of the custom colour.
base_colour (wxColour) and slidepos (int) are used to configure the
colour slider and set everything to its original position."""
self.custom_boxs[index].SetColour(true_colour)
self.custom_colours[index] = (base_colour, slidepos)
def UpdateColour(self, colour):
"""Performs necessary updates for when the colour selection has
changed."""
# Reset the palette to erase any highlighting
self.palette.ReDraw()
# Set the color info
self.solid.SetColour(colour)
self.colour_slider.SetBaseColour(colour)
self.colour_slider.ReDraw()
self.slider.SetValue(0)
self.UpdateEntries(colour)
def UpdateEntries(self, colour):
"""Updates the color levels to display the new values."""
# Temporary bindings
r = colour.Red()
g = colour.Green()
b = colour.Blue()
# Update the RGB entries
self.rentry.SetValue(str(r))
self.gentry.SetValue(str(g))
self.bentry.SetValue(str(b))
# Convert to HSV
h,s,v = colorsys.rgb_to_hsv(r / 255.0, g / 255.0, b / 255.0)
self.hentry.SetValue("%.2f" % (h))
self.sentry.SetValue("%.2f" % (s))
self.ventry.SetValue("%.2f" % (v))
def onPaletteDown(self, event):
"""Stores state that the mouse has been pressed and updates
the selected colour values."""
self.mouse_down = True
self.palette.ReDraw()
self.doPaletteClick(event.m_x, event.m_y)
def onPaletteUp(self, event):
"""Stores state that the mouse is no longer depressed."""
self.mouse_down = False
def onPaletteMotion(self, event):
"""Updates the colour values during mouse motion while the
mouse button is depressed."""
if self.mouse_down:
self.doPaletteClick(event.m_x, event.m_y)
def doPaletteClick(self, m_x, m_y):
"""Updates the colour values based on the mouse location
over the palette."""
# Get the colour value and update
colour = self.palette.GetValue(m_x, m_y)
self.UpdateColour(colour)
# Highlight a fresh selected area
self.palette.ReDraw()
self.palette.HighlightPoint(m_x, m_y)
# Force an onscreen update
self.solid.Update()
self.colour_slider.Refresh()
def onScroll(self, event):
"""Updates the solid colour display to reflect the changing slider."""
value = self.slider.GetValue()
colour = self.colour_slider.GetValue(value)
self.solid.SetColour(colour)
self.UpdateEntries(colour)
def SetValue(self, colour):
"""Updates the colour chooser to reflect the given wxColour."""
self.UpdateColour(colour)
def GetValue(self):
"""Returns a wxColour object indicating the current colour choice."""
return self.solid.GetColour()
def main():
"""Simple test display."""
class App(wx.App):
def OnInit(self):
frame = wx.Frame(None, -1, 'PyColourChooser Test')
# Added here because that's where it's supposed to be,
# not embedded in the library. If it's embedded in the
# library, debug messages will be generated for duplicate
# handlers.
wx.InitAllImageHandlers()
chooser = PyColourChooser(frame, -1)
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(chooser, 0, 0)
frame.SetAutoLayout(True)
frame.SetSizer(sizer)
sizer.Fit(frame)
frame.Show(True)
self.SetTopWindow(frame)
return True
app = App(False)
app.MainLoop()
if __name__ == '__main__':
main()
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