Mercurial > cpython-lru_cache-weakref

annotate Tools/pynche/TypeinViewer.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents 1d84bf5f9478
children 37d399aa8c16
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 """TypeinViewer class.
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2
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3 The TypeinViewer is what you see at the lower right of the main Pynche
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4 widget. It contains three text entry fields, one each for red, green, blue.
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5 Input into these windows is highly constrained; it only allows you to enter
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6 values that are legal for a color axis. This usually means 0-255 for decimal
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7 input and 0x0 - 0xff for hex input.
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8
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9 You can toggle whether you want to view and input the values in either decimal
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10 or hex by clicking on Hexadecimal. By clicking on Update while typing, the
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11 color selection will be made on every change to the text field. Otherwise,
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12 you must hit Return or Tab to select the color.
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13 """
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14
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15 from Tkinter import *
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16
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17
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18
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19 class TypeinViewer:
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20 def __init__(self, switchboard, master=None):
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21 # non-gui ivars
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22 self.__sb = switchboard
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23 optiondb = switchboard.optiondb()
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24 self.__hexp = BooleanVar()
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25 self.__hexp.set(optiondb.get('HEXTYPE', 0))
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26 self.__uwtyping = BooleanVar()
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27 self.__uwtyping.set(optiondb.get('UPWHILETYPE', 0))
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28 # create the gui
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29 self.__frame = Frame(master, relief=RAISED, borderwidth=1)
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30 self.__frame.grid(row=3, column=1, sticky='NSEW')
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31 # Red
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32 self.__xl = Label(self.__frame, text='Red:')
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33 self.__xl.grid(row=0, column=0, sticky=E)
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34 subframe = Frame(self.__frame)
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35 subframe.grid(row=0, column=1)
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36 self.__xox = Label(subframe, text='0x')
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37 self.__xox.grid(row=0, column=0, sticky=E)
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38 self.__xox['font'] = 'courier'
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39 self.__x = Entry(subframe, width=3)
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40 self.__x.grid(row=0, column=1)
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41 self.__x.bindtags(self.__x.bindtags() + ('Normalize', 'Update'))
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42 self.__x.bind_class('Normalize', '<Key>', self.__normalize)
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43 self.__x.bind_class('Update' , '<Key>', self.__maybeupdate)
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44 # Green
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45 self.__yl = Label(self.__frame, text='Green:')
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46 self.__yl.grid(row=1, column=0, sticky=E)
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47 subframe = Frame(self.__frame)
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48 subframe.grid(row=1, column=1)
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49 self.__yox = Label(subframe, text='0x')
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50 self.__yox.grid(row=0, column=0, sticky=E)
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51 self.__yox['font'] = 'courier'
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52 self.__y = Entry(subframe, width=3)
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53 self.__y.grid(row=0, column=1)
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54 self.__y.bindtags(self.__y.bindtags() + ('Normalize', 'Update'))
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55 # Blue
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56 self.__zl = Label(self.__frame, text='Blue:')
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57 self.__zl.grid(row=2, column=0, sticky=E)
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58 subframe = Frame(self.__frame)
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59 subframe.grid(row=2, column=1)
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60 self.__zox = Label(subframe, text='0x')
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61 self.__zox.grid(row=0, column=0, sticky=E)
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62 self.__zox['font'] = 'courier'
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63 self.__z = Entry(subframe, width=3)
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64 self.__z.grid(row=0, column=1)
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65 self.__z.bindtags(self.__z.bindtags() + ('Normalize', 'Update'))
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66 # Update while typing?
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67 self.__uwt = Checkbutton(self.__frame,
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68 text='Update while typing',
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69 variable=self.__uwtyping)
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70 self.__uwt.grid(row=3, column=0, columnspan=2, sticky=W)
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71 # Hex/Dec
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72 self.__hex = Checkbutton(self.__frame,
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73 text='Hexadecimal',
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74 variable=self.__hexp,
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75 command=self.__togglehex)
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76 self.__hex.grid(row=4, column=0, columnspan=2, sticky=W)
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77
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78 def __togglehex(self, event=None):
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79 red, green, blue = self.__sb.current_rgb()
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80 if self.__hexp.get():
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81 label = '0x'
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82 else:
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83 label = ' '
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84 self.__xox['text'] = label
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85 self.__yox['text'] = label
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86 self.__zox['text'] = label
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87 self.update_yourself(red, green, blue)
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88
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89 def __normalize(self, event=None):
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90 ew = event.widget
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91 contents = ew.get()
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92 icursor = ew.index(INSERT)
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93 if contents and contents[0] in 'xX' and self.__hexp.get():
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94 contents = '0' + contents
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95 # Figure out the contents in the current base.
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96 try:
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97 if self.__hexp.get():
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98 v = int(contents, 16)
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99 else:
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100 v = int(contents)
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101 except ValueError:
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102 v = None
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103 # If value is not legal, or empty, delete the last character inserted
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104 # and ring the bell. Don't ring the bell if the field is empty (it'll
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105 # just equal zero.
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106 if v is None:
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107 pass
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108 elif v < 0 or v > 255:
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109 i = ew.index(INSERT)
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110 if event.char:
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111 contents = contents[:i-1] + contents[i:]
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112 icursor -= 1
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113 ew.bell()
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114 elif self.__hexp.get():
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115 contents = hex(v)[2:]
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116 else:
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117 contents = int(v)
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118 ew.delete(0, END)
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119 ew.insert(0, contents)
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120 ew.icursor(icursor)
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121
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122 def __maybeupdate(self, event=None):
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123 if self.__uwtyping.get() or event.keysym in ('Return', 'Tab'):
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124 self.__update(event)
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125
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126 def __update(self, event=None):
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127 redstr = self.__x.get() or '0'
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128 greenstr = self.__y.get() or '0'
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129 bluestr = self.__z.get() or '0'
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130 if self.__hexp.get():
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131 base = 16
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132 else:
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133 base = 10
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134 red, green, blue = [int(x, base) for x in (redstr, greenstr, bluestr)]
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135 self.__sb.update_views(red, green, blue)
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136
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137 def update_yourself(self, red, green, blue):
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138 if self.__hexp.get():
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139 sred, sgreen, sblue = [hex(x)[2:] for x in (red, green, blue)]
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Barry Warsaw <barry@python.org>
parents: 7702
diff changeset
140 else:
18464
c1a5e5175907 Change the way hex type-ins are displayed. The old way was way too
Barry Warsaw <barry@python.org>
parents: 16397
diff changeset
141 sred, sgreen, sblue = red, green, blue
9270
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
142 x, y, z = self.__x, self.__y, self.__z
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
143 xicursor = x.index(INSERT)
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
144 yicursor = y.index(INSERT)
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
145 zicursor = z.index(INSERT)
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
146 x.delete(0, END)
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
147 y.delete(0, END)
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
148 z.delete(0, END)
18464
c1a5e5175907 Change the way hex type-ins are displayed. The old way was way too
Barry Warsaw <barry@python.org>
parents: 16397
diff changeset
149 x.insert(0, sred)
c1a5e5175907 Change the way hex type-ins are displayed. The old way was way too
Barry Warsaw <barry@python.org>
parents: 16397
diff changeset
150 y.insert(0, sgreen)
c1a5e5175907 Change the way hex type-ins are displayed. The old way was way too
Barry Warsaw <barry@python.org>
parents: 16397
diff changeset
151 z.insert(0, sblue)
9270
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
152 x.icursor(xicursor)
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
153 y.icursor(yicursor)
72441113243a Fixes for some type-in strangeness
Barry Warsaw <barry@python.org>
parents: 9247
diff changeset
154 z.icursor(zicursor)
9244
159f9e746754 hexp(): New function
Barry Warsaw <barry@python.org>
parents: 9243
diff changeset
155
9245
8a885f3a5f46 hexp() => hexp_var()
Barry Warsaw <barry@python.org>
parents: 9244
diff changeset
156 def hexp_var(self):
8a885f3a5f46 hexp() => hexp_var()
Barry Warsaw <barry@python.org>
parents: 9244
diff changeset
157 return self.__hexp
9414
c03ffff387f8 Saving/Restoring state into ~/.pynche file
Barry Warsaw <barry@python.org>
parents: 9270
diff changeset
158
c03ffff387f8 Saving/Restoring state into ~/.pynche file
Barry Warsaw <barry@python.org>
parents: 9270
diff changeset
159 def save_options(self, optiondb):
c03ffff387f8 Saving/Restoring state into ~/.pynche file
Barry Warsaw <barry@python.org>
parents: 9270
diff changeset
160 optiondb['HEXTYPE'] = self.__hexp.get()
c03ffff387f8 Saving/Restoring state into ~/.pynche file
Barry Warsaw <barry@python.org>
parents: 9270
diff changeset
161 optiondb['UPWHILETYPE'] = self.__uwtyping.get()