| [111] | 1 | """
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| 2 | ASAP plotting class based on matplotlib.
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| 3 | """
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| 4 |
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| 5 | import sys
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| 6 | from re import match
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| 7 | import Tkinter as Tk
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| 8 |
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| 9 | print "Importing matplotlib with TkAgg backend."
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| 10 | import matplotlib
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| 11 | matplotlib.use("TkAgg")
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| 12 |
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| 13 | from matplotlib.backends import new_figure_manager, show
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| 14 | from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, \
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| [117] | 15 | FigureManagerTkAgg
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| [111] | 16 | from matplotlib.figure import Figure, Text
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| [118] | 17 | from matplotlib.numerix import sqrt
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| [111] | 18 |
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| 19 | # Force use of the newfangled toolbar.
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| 20 | matplotlib.rcParams['toolbar'] = 'toolbar2'
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| 21 |
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| 22 | # Colour dictionary.
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| 23 | colours = {}
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| 24 |
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| 25 | class ASAPlot:
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| 26 | """
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| 27 | ASAP plotting class based on matplotlib.
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| 28 | """
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| 29 |
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| [118] | 30 | def __init__(self, rows=1, cols=0, title='', size=(8,6), buffering=False):
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| [117] | 31 | """
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| 32 | Create a new instance of the ASAPlot plotting class.
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| [119] | 33 |
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| 34 | If rows < 1 then a separate call to set_panels() is required to define
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| 35 | the panel layout; refer to the doctext for set_panels().
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| [117] | 36 | """
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| 37 | self.window = Tk.Tk()
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| 38 |
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| 39 | self.frame1 = Tk.Frame(self.window, relief=Tk.RIDGE, borderwidth=4)
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| 40 | self.frame1.pack(fill=Tk.BOTH)
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| [111] | 41 |
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| [117] | 42 | self.figure = Figure(figsize=size, facecolor='#ddddee')
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| 43 | self.canvas = FigureCanvasTkAgg(self.figure, master=self.frame1)
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| 44 | self.canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
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| [111] | 45 |
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| [117] | 46 | # Simply instantiating this is enough to get a working toolbar.
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| 47 | self.figmgr = FigureManagerTkAgg(self.canvas, 1, self.window)
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| 48 | self.window.wm_title('ASAPlot graphics window')
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| [111] | 49 |
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| [120] | 50 | self.events = {'button_press':None,
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| 51 | 'button_release':None,
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| 52 | 'motion_notify':None}
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| 53 |
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| [118] | 54 | self.set_title(title)
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| [117] | 55 | self.subplots = []
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| [118] | 56 | if rows > 0:
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| 57 | self.set_panels(rows, cols)
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| [111] | 58 |
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| 59 |
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| [117] | 60 | # Set matplotlib default colour sequence.
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| 61 | self.colours = [1, 'b', 'g', 'r', 'c', 'm', 'y', 'k', 'w']
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| 62 | self.attributes = {}
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| 63 | self.loc = 1
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| [111] | 64 |
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| [117] | 65 | matplotlib.interactive = True
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| 66 | self.buffering = buffering
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| [111] | 67 |
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| [117] | 68 | self.canvas.show()
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| [111] | 69 |
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| 70 |
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| [117] | 71 | def clear(self):
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| 72 | """
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| 73 | Delete all lines from the plot. Line numbering will restart from 1.
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| 74 | """
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| [111] | 75 |
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| [117] | 76 | for i in range(1,len(self.lines)+1):
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| 77 | self.delete(i)
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| [111] | 78 |
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| [117] | 79 | self.axes.clear()
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| 80 | self.colours[0] = 1
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| 81 | self.lines = []
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| 82 |
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| [111] | 83 |
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| 84 | def delete(self, numbers=None):
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| [117] | 85 | """
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| 86 | Delete the 0-relative line number, default is to delete the last.
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| 87 | The remaining lines are NOT renumbered.
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| 88 | """
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| [111] | 89 |
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| [117] | 90 | if numbers is None: numbers = [len(self.lines)-1]
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| [111] | 91 |
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| [117] | 92 | if not hasattr(numbers, '__iter__'):
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| 93 | numbers = [numbers]
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| [111] | 94 |
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| [117] | 95 | for number in numbers:
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| 96 | if 0 <= number < len(self.lines):
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| 97 | if self.lines[number] is not None:
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| 98 | for line in self.lines[number]:
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| 99 | line.set_linestyle('None')
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| 100 | self.lines[number] = None
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| [111] | 101 |
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| [117] | 102 | self.show()
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| [111] | 103 |
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| 104 |
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| 105 | def get_line(self):
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| [117] | 106 | """
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| 107 | Get the current default line attributes.
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| 108 | """
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| 109 | return self.attributes
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| [111] | 110 |
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| 111 |
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| [119] | 112 | def hist(self, x=None, y=None, fmt=None):
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| 113 | """
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| 114 | Plot a histogram. N.B. the x values refer to the start of the
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| 115 | histogram bin.
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| 116 |
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| 117 | fmt is the line style as in plot().
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| 118 | """
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| 119 |
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| 120 | if x is None:
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| 121 | if y is None: return
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| 122 | x = range(0,len(y))
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| 123 |
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| 124 | if len(x) != len(y):
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| 125 | return
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| 126 |
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| 127 | l2 = 2*len(x)
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| 128 | x2 = range(0,l2)
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| 129 | y2 = range(0,l2)
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| 130 |
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| 131 | for i in range(0,l2):
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| 132 | x2[i] = x[i/2]
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| 133 |
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| 134 | y2[0] = 0
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| 135 | for i in range(1,l2):
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| 136 | y2[i] = y[(i-1)/2]
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| 137 |
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| 138 | self.plot(x2, y2, fmt)
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| 139 |
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| 140 |
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| [111] | 141 | def hold(self, hold=True):
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| [117] | 142 | """
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| 143 | Buffer graphics until subsequently released.
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| 144 | """
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| 145 | self.buffering = hold
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| [111] | 146 |
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| 147 |
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| 148 | def legend(self, loc=1):
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| [117] | 149 | """
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| 150 | Add a legend to the plot.
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| [111] | 151 |
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| [117] | 152 | Any other value for loc else disables the legend:
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| 153 | 1: upper right
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| 154 | 2: upper left
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| 155 | 3: lower left
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| 156 | 4: lower right
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| 157 | 5: right
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| 158 | 6: center left
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| 159 | 7: center right
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| 160 | 8: lower center
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| 161 | 9: upper center
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| 162 | 10: center
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| [111] | 163 |
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| [117] | 164 | """
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| 165 | if 1 > loc > 10: loc = 0
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| 166 | self.loc = loc
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| 167 | self.show()
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| [111] | 168 |
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| 169 |
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| 170 | def map(self):
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| [117] | 171 | """
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| 172 | Reveal the ASAPlot graphics window and bring it to the top of the
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| 173 | window stack.
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| 174 | """
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| 175 | self.window.wm_deiconify()
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| 176 | self.window.lift()
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| [111] | 177 |
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| [117] | 178 |
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| [111] | 179 | def palette(self, pen=None, colours=None):
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| [117] | 180 | """
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| 181 | Redefine the colour sequence.
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| [111] | 182 |
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| [117] | 183 | pen is the pen number to use for the next plot; this will be auto-
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| 184 | incremented.
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| [111] | 185 |
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| [117] | 186 | colours is the list of pen colours. Colour may be specified via
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| 187 | the single letter values understood by matplotlib:
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| [111] | 188 |
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| [117] | 189 | b: blue
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| 190 | g: green
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| 191 | r: red
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| 192 | c: cyan
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| 193 | m: magenta
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| 194 | y: yellow
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| 195 | k: black
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| 196 | w: white
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| [111] | 197 |
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| [117] | 198 | or via the full name as listed in the colour dictionary which is
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| 199 | loaded by default by load_colours() from rgb.txt and listed by
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| 200 | list_colours().
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| 201 | """
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| [111] | 202 |
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| [117] | 203 | if pen is None and colours is None:
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| 204 | self.colours = []
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| 205 | return
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| [111] | 206 |
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| [117] | 207 | if pen is None:
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| 208 | if not len(self.colours):
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| 209 | self.colours = [1]
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| 210 | else:
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| 211 | self.colours[0] = pen
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| [111] | 212 |
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| [117] | 213 | if colours is None:
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| 214 | return
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| [111] | 215 |
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| [117] | 216 | cols = []
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| 217 | for col in colours:
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| 218 | cols.append(get_colour(col))
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| [111] | 219 |
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| [117] | 220 | self.colours[1:] = cols
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| [111] | 221 |
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| [117] | 222 | if 0 > self.colours[0] > len(self.colours):
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| 223 | self.colours[0] = 1
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| [111] | 224 |
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| 225 |
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| 226 | def plot(self, x=None, y=None, mask=None, fmt=None, add=None):
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| [117] | 227 | """
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| 228 | Plot the next line in the current frame using the current line
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| 229 | attributes. The ASAPlot graphics window will be mapped and raised.
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| [111] | 230 |
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| [117] | 231 | The argument list works a bit like the matlab plot() function.
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| 232 | """
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| [111] | 233 |
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| [117] | 234 | if x is None:
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| 235 | if y is None: return
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| 236 | x = range(len(y))
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| [111] | 237 |
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| [117] | 238 | elif y is None:
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| 239 | y = x
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| 240 | x = range(len(y))
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| [111] | 241 |
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| [117] | 242 | if mask is None:
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| 243 | if fmt is None:
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| 244 | line = self.axes.plot(x, y)
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| 245 | else:
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| 246 | line = self.axes.plot(x, y, fmt)
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| 247 | else:
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| 248 | segments = []
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| [111] | 249 |
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| [117] | 250 | mask = list(mask)
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| 251 | i = 0
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| 252 | while mask[i:].count(1):
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| 253 | i += mask[i:].index(1)
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| 254 | if mask[i:].count(0):
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| 255 | j = i + mask[i:].index(0)
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| 256 | else:
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| 257 | j = len(mask)
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| [111] | 258 |
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| [117] | 259 | segments.append(x[i:j])
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| 260 | segments.append(y[i:j])
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| [111] | 261 |
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| [117] | 262 | i = j
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| [111] | 263 |
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| [117] | 264 | line = self.axes.plot(*segments)
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| [111] | 265 |
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| [117] | 266 | # Add to an existing line?
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| 267 | if add is None or len(self.lines) < add < 0:
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| [119] | 268 | # Don't add.
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| [117] | 269 | self.lines.append(line)
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| 270 | i = len(self.lines) - 1
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| 271 | else:
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| 272 | if add == 0: add = len(self.lines)
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| 273 | i = add - 1
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| 274 | self.lines[i].extend(line)
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| [111] | 275 |
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| [117] | 276 | # Set/reset attributes for the line.
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| 277 | gotcolour = False
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| 278 | for k, v in self.attributes.iteritems():
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| 279 | if k == 'color': gotcolour = True
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| 280 | for segment in self.lines[i]:
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| 281 | getattr(segment, "set_%s"%k)(v)
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| [111] | 282 |
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| [117] | 283 | if not gotcolour and len(self.colours):
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| 284 | for segment in self.lines[i]:
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| 285 | getattr(segment, "set_color")(self.colours[self.colours[0]])
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| [111] | 286 |
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| [117] | 287 | self.colours[0] += 1
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| 288 | if self.colours[0] >= len(self.colours):
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| 289 | self.colours[0] = 1
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| [111] | 290 |
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| [117] | 291 | self.show()
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| [111] | 292 |
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| 293 |
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| 294 | def quit(self):
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| [117] | 295 | """
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| 296 | Destroy the ASAPlot graphics window.
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| 297 | """
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| 298 | self.window.destroy()
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| [111] | 299 |
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| 300 |
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| [120] | 301 | def register(self, type=None, func=None):
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| 302 | """
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| 303 | Register, reregister, or deregister events of type 'button_press',
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| 304 | 'button_release', or 'motion_notify'.
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| 305 |
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| 306 | The specified callback function should have the following signature:
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| 307 |
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| 308 | def func(event)
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| 309 |
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| 310 | where event is an MplEvent instance containing the following data:
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| 311 |
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| 312 | name # Event name.
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| 313 | canvas # FigureCanvas instance generating the event.
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| 314 | x = None # x position - pixels from left of canvas.
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| 315 | y = None # y position - pixels from bottom of canvas.
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| 316 | button = None # Button pressed: None, 1, 2, 3.
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| 317 | key = None # Key pressed: None, chr(range(255)), shift,
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| 318 | win, or control
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| 319 | inaxes = None # Axes instance if cursor within axes.
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| 320 | xdata = None # x world coordinate.
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| 321 | ydata = None # y world coordinate.
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| 322 |
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| 323 | For example:
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| 324 |
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| 325 | def mouse_move(event):
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| 326 | print event.xdata, event.ydata
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| 327 |
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| 328 | a = asaplot()
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| 329 | a.register('motion_notify', mouse_move)
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| 330 |
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| 331 | If func is None, the event is deregistered.
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| 332 |
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| 333 | Note that in TkAgg keyboard button presses don't generate an event.
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| 334 | """
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| 335 |
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| 336 | if not self.events.has_key(type): return
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| 337 |
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| 338 | if func is None:
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| 339 | if self.events[type] is not None:
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| 340 | # It's not clear that this does anything.
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| 341 | self.canvas.mpl_disconnect(self.events[type])
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| 342 | self.events[type] = None
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| 343 |
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| 344 | # It seems to be necessary to return events to the toolbar.
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| 345 | if type == 'motion_notify':
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| 346 | self.canvas.mpl_connect(type + '_event',
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| 347 | self.figmgr.toolbar.mouse_move)
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| 348 | elif type == 'button_press':
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| 349 | self.canvas.mpl_connect(type + '_event',
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| 350 | self.figmgr.toolbar.press)
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| 351 | elif type == 'button_release':
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| 352 | self.canvas.mpl_connect(type + '_event',
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| 353 | self.figmgr.toolbar.release)
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| 354 |
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| 355 | else:
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| 356 | self.events[type] = self.canvas.mpl_connect(type + '_event', func)
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| 357 |
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| 358 |
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| [111] | 359 | def release(self):
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| [117] | 360 | """
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| 361 | Release buffered graphics.
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| 362 | """
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| 363 | self.buffering = False
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| 364 | self.show()
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| [111] | 365 |
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| 366 |
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| 367 | def set_axes(self, what=None, *args, **kwargs):
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| [117] | 368 | """
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| 369 | Set attributes for the axes by calling the relevant Axes.set_*()
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| 370 | method. Colour translation is done as described in the doctext
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| 371 | for palette().
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| 372 | """
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| [111] | 373 |
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| [117] | 374 | if what is None: return
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| 375 | if what[-6:] == 'colour': what = what[:-6] + 'color'
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| [111] | 376 |
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| [117] | 377 | newargs = {}
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| 378 | for k, v in kwargs.iteritems():
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| 379 | k = k.lower()
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| 380 | if k == 'colour': k = 'color'
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| [111] | 381 |
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| [117] | 382 | if k == 'color':
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| 383 | v = get_colour(v)
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| [111] | 384 |
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| [117] | 385 | newargs[k] = v
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| [111] | 386 |
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| [117] | 387 | getattr(self.axes, "set_%s"%what)(*args, **newargs)
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| 388 | self.show()
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| [111] | 389 |
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| 390 |
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| 391 | def set_figure(self, what=None, *args, **kwargs):
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| [117] | 392 | """
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| 393 | Set attributes for the figure by calling the relevant Figure.set_*()
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| 394 | method. Colour translation is done as described in the doctext
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| 395 | for palette().
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| 396 | """
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| [111] | 397 |
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| [117] | 398 | if what is None: return
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| 399 | if what[-6:] == 'colour': what = what[:-6] + 'color'
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| 400 | if what[-5:] == 'color' and len(args):
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| 401 | args = (get_colour(args[0]),)
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| [111] | 402 |
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| [117] | 403 | newargs = {}
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| 404 | for k, v in kwargs.iteritems():
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| 405 | k = k.lower()
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| 406 | if k == 'colour': k = 'color'
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| [111] | 407 |
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| [117] | 408 | if k == 'color':
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| 409 | v = get_colour(v)
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| [111] | 410 |
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| [117] | 411 | newargs[k] = v
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| [111] | 412 |
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| [117] | 413 | getattr(self.figure, "set_%s"%what)(*args, **newargs)
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| 414 | self.show()
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| [111] | 415 |
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| 416 |
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| 417 | def set_line(self, number=None, **kwargs):
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| [117] | 418 | """
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| 419 | Set attributes for the specified line, or else the next line(s)
|
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| 420 | to be plotted.
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|---|
| [111] | 421 |
|
|---|
| [117] | 422 | number is the 0-relative number of a line that has already been
|
|---|
| 423 | plotted. If no such line exists, attributes are recorded and used
|
|---|
| 424 | for the next line(s) to be plotted.
|
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| [111] | 425 |
|
|---|
| [117] | 426 | Keyword arguments specify Line2D attributes, e.g. color='r'. Do
|
|---|
| [111] | 427 |
|
|---|
| [117] | 428 | import matplotlib
|
|---|
| 429 | help(matplotlib.lines)
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|---|
| [111] | 430 |
|
|---|
| [117] | 431 | The set_* methods of class Line2D define the attribute names and
|
|---|
| 432 | values. For non-US usage, "colour" is recognized as synonymous with
|
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| 433 | "color".
|
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| [111] | 434 |
|
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| [117] | 435 | Set the value to None to delete an attribute.
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| [111] | 436 |
|
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| [117] | 437 | Colour translation is done as described in the doctext for palette().
|
|---|
| 438 | """
|
|---|
| [111] | 439 |
|
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| [117] | 440 | redraw = False
|
|---|
| 441 | for k, v in kwargs.iteritems():
|
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| 442 | k = k.lower()
|
|---|
| 443 | if k == 'colour': k = 'color'
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|---|
| [111] | 444 |
|
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| [117] | 445 | if k == 'color':
|
|---|
| 446 | v = get_colour(v)
|
|---|
| [111] | 447 |
|
|---|
| [117] | 448 | if 0 <= number < len(self.lines):
|
|---|
| 449 | if self.lines[number] is not None:
|
|---|
| 450 | for line in self.lines[number]:
|
|---|
| 451 | getattr(line, "set_%s"%k)(v)
|
|---|
| 452 | redraw = True
|
|---|
| 453 | else:
|
|---|
| 454 | if v is None:
|
|---|
| 455 | del self.attributes[k]
|
|---|
| 456 | else:
|
|---|
| 457 | self.attributes[k] = v
|
|---|
| [111] | 458 |
|
|---|
| [117] | 459 | if redraw: self.show()
|
|---|
| [111] | 460 |
|
|---|
| 461 |
|
|---|
| [118] | 462 | def set_panels(self, rows=1, cols=0, n=-1):
|
|---|
| 463 | """
|
|---|
| 464 | Set the panel layout.
|
|---|
| 465 |
|
|---|
| 466 | rows and cols, if cols != 0, specify the number of rows and columns in
|
|---|
| 467 | a regular layout. (Indexing of these panels in matplotlib is row-
|
|---|
| 468 | major, i.e. column varies fastest.)
|
|---|
| 469 |
|
|---|
| 470 | cols == 0 is interpreted as a retangular layout that accomodates
|
|---|
| 471 | 'rows' panels, e.g. rows == 6, cols == 0 is equivalent to
|
|---|
| 472 | rows == 2, cols == 3.
|
|---|
| 473 |
|
|---|
| 474 | 0 <= n < rows*cols is interpreted as the 0-relative panel number in
|
|---|
| 475 | the configuration specified by rows and cols to be added to the
|
|---|
| 476 | current figure as its next 0-relative panel number (i). This allows
|
|---|
| 477 | non-regular panel layouts to be constructed via multiple calls. Any
|
|---|
| 478 | other value of n clears the plot and produces a rectangular array of
|
|---|
| 479 | empty panels.
|
|---|
| 480 | """
|
|---|
| 481 | if n < 0 and len(self.subplots):
|
|---|
| 482 | self.figure.clear()
|
|---|
| 483 | self.set_title()
|
|---|
| 484 |
|
|---|
| 485 | if rows < 1:
|
|---|
| 486 | rows = 1
|
|---|
| 487 |
|
|---|
| 488 | if cols == 0:
|
|---|
| 489 | i = int(sqrt(rows))
|
|---|
| 490 | if i*i < rows: i += 1
|
|---|
| 491 | cols = i
|
|---|
| 492 |
|
|---|
| 493 | if i*(i-1) >= rows: i -= 1
|
|---|
| 494 | rows = i
|
|---|
| 495 |
|
|---|
| 496 | if 0 <= n < rows*cols:
|
|---|
| 497 | i = len(self.subplots)
|
|---|
| 498 | self.subplots.append({})
|
|---|
| 499 | self.subplots[i]['axes'] = self.figure.add_subplot(rows,
|
|---|
| 500 | cols, n+1)
|
|---|
| 501 | self.subplots[i]['lines'] = []
|
|---|
| 502 |
|
|---|
| [119] | 503 | if i == 0: self.subplot(0)
|
|---|
| [118] | 504 |
|
|---|
| 505 | else:
|
|---|
| 506 | self.subplots = []
|
|---|
| 507 | for i in range(0,rows*cols):
|
|---|
| 508 | self.subplots.append({})
|
|---|
| 509 | self.subplots[i]['axes'] = self.figure.add_subplot(rows,
|
|---|
| 510 | cols, i+1)
|
|---|
| 511 | self.subplots[i]['lines'] = []
|
|---|
| 512 |
|
|---|
| [119] | 513 | self.subplot(0)
|
|---|
| [118] | 514 |
|
|---|
| 515 |
|
|---|
| 516 | def set_title(self, title=None):
|
|---|
| 517 | """
|
|---|
| 518 | Set the title of the plot window. Use the previous title if title is
|
|---|
| 519 | omitted.
|
|---|
| 520 | """
|
|---|
| 521 | if title is not None:
|
|---|
| 522 | self.title = title
|
|---|
| 523 |
|
|---|
| 524 | self.figure.text(0.5, 0.95, self.title, horizontalalignment='center')
|
|---|
| 525 |
|
|---|
| 526 |
|
|---|
| [111] | 527 | def show(self):
|
|---|
| [117] | 528 | """
|
|---|
| 529 | Show graphics dependent on the current buffering state.
|
|---|
| 530 | """
|
|---|
| 531 | if not self.buffering:
|
|---|
| 532 | if self.loc:
|
|---|
| 533 | lines = []
|
|---|
| 534 | labels = []
|
|---|
| 535 | i = 0
|
|---|
| 536 | for line in self.lines:
|
|---|
| 537 | i += 1
|
|---|
| 538 | if line is not None:
|
|---|
| 539 | lines.append(line[0])
|
|---|
| 540 | lbl = line[0].get_label()
|
|---|
| 541 | if lbl == '':
|
|---|
| 542 | lbl = str(i)
|
|---|
| 543 | labels.append(lbl)
|
|---|
| [111] | 544 |
|
|---|
| [117] | 545 | if len(lines):
|
|---|
| 546 | self.axes.legend(tuple(lines), tuple(labels), self.loc)
|
|---|
| 547 | else:
|
|---|
| 548 | self.axes.legend((' '))
|
|---|
| [111] | 549 |
|
|---|
| [117] | 550 | self.window.wm_deiconify()
|
|---|
| 551 | self.canvas.show()
|
|---|
| [111] | 552 |
|
|---|
| 553 |
|
|---|
| [119] | 554 | def subplot(self, i=None, inc=None):
|
|---|
| [117] | 555 | """
|
|---|
| [118] | 556 | Set the subplot to the 0-relative panel number as defined by one or
|
|---|
| 557 | more invokations of set_panels().
|
|---|
| [117] | 558 | """
|
|---|
| [118] | 559 | l = len(self.subplots)
|
|---|
| 560 | if l:
|
|---|
| [119] | 561 | if i is not None:
|
|---|
| [120] | 562 | self.i = i
|
|---|
| [111] | 563 |
|
|---|
| [119] | 564 | if inc is not None:
|
|---|
| [120] | 565 | self.i += inc
|
|---|
| [117] | 566 |
|
|---|
| [119] | 567 | self.i %= l
|
|---|
| 568 | self.axes = self.subplots[self.i]['axes']
|
|---|
| 569 | self.lines = self.subplots[self.i]['lines']
|
|---|
| 570 |
|
|---|
| 571 |
|
|---|
| [111] | 572 | def terminate(self):
|
|---|
| [117] | 573 | """
|
|---|
| 574 | Clear the figure.
|
|---|
| 575 | """
|
|---|
| 576 | self.window.destroy()
|
|---|
| [111] | 577 |
|
|---|
| 578 |
|
|---|
| 579 | def text(self, *args, **kwargs):
|
|---|
| [117] | 580 | """
|
|---|
| 581 | Add text to the figure.
|
|---|
| 582 | """
|
|---|
| 583 | self.figure.text(*args, **kwargs)
|
|---|
| 584 | self.show()
|
|---|
| [111] | 585 |
|
|---|
| 586 |
|
|---|
| 587 | def unmap(self):
|
|---|
| [117] | 588 | """
|
|---|
| 589 | Hide the ASAPlot graphics window.
|
|---|
| 590 | """
|
|---|
| 591 | self.window.wm_withdraw()
|
|---|
| [111] | 592 |
|
|---|
| 593 |
|
|---|
| 594 | def get_colour(colour='black'):
|
|---|
| 595 | """
|
|---|
| 596 | Look up a colour by name in the colour dictionary. Matches are
|
|---|
| 597 | case-insensitive, insensitive to blanks, and 'gray' matches 'grey'.
|
|---|
| 598 | """
|
|---|
| 599 |
|
|---|
| 600 | if colour is None: return None
|
|---|
| 601 |
|
|---|
| 602 | if match('[rgbcmykw]$', colour): return colour
|
|---|
| 603 | if match('#[\da-fA-F]{6}$', colour): return colour
|
|---|
| 604 |
|
|---|
| 605 | if len(colours) == 0: load_colours()
|
|---|
| 606 |
|
|---|
| 607 | # Try a quick match.
|
|---|
| 608 | if colours.has_key(colour): return colours[colour]
|
|---|
| 609 |
|
|---|
| 610 | colour = colour.replace(' ','').lower()
|
|---|
| 611 | colour = colour.replace('gray','grey')
|
|---|
| 612 | for name in colours.keys():
|
|---|
| [117] | 613 | if name.lower() == colour:
|
|---|
| 614 | return colours[name]
|
|---|
| [111] | 615 |
|
|---|
| 616 | return '#000000'
|
|---|
| 617 |
|
|---|
| 618 |
|
|---|
| 619 | def list_colours():
|
|---|
| 620 | """
|
|---|
| 621 | List the contents of the colour dictionary sorted by name.
|
|---|
| 622 | """
|
|---|
| 623 |
|
|---|
| 624 | if len(colours) == 0: load_colours()
|
|---|
| 625 |
|
|---|
| 626 | names = colours.keys()
|
|---|
| 627 | names.sort()
|
|---|
| 628 | for name in names:
|
|---|
| [117] | 629 | print colours[name], name
|
|---|
| [111] | 630 |
|
|---|
| 631 |
|
|---|
| 632 | def load_colours(file='/usr/local/lib/rgb.txt'):
|
|---|
| 633 | """
|
|---|
| 634 | Load the colour dictionary from the specified file.
|
|---|
| 635 | """
|
|---|
| 636 | print 'Loading colour dictionary from', file
|
|---|
| 637 | rgb = open(file, 'r')
|
|---|
| 638 |
|
|---|
| 639 | while True:
|
|---|
| [117] | 640 | line = rgb.readline()
|
|---|
| 641 | if line == '': break
|
|---|
| 642 | tmp = line.split()
|
|---|
| [111] | 643 |
|
|---|
| [117] | 644 | if len(tmp) == 4:
|
|---|
| 645 | if tmp[3][:4] == 'gray': continue
|
|---|
| 646 | if tmp[3].lower().find('gray') != -1: continue
|
|---|
| [111] | 647 |
|
|---|
| [117] | 648 | name = tmp[3][0].upper() + tmp[3][1:]
|
|---|
| 649 | r, g, b = int(tmp[0]), int(tmp[1]), int(tmp[2])
|
|---|
| 650 | colours[name] = '#%2.2x%2.2x%2.2x' % (r, g, b)
|
|---|
