Mercurial > cpython-lru_cache-weakref
annotate Tools/pynche/ListViewer.py @ 54294:dba767bc3155 legacy-trunk
remove mention of old ctypes version
| author | Benjamin Peterson <benjamin@python.org> |
|---|---|
| date | Sat, 23 May 2009 20:59:09 +0000 |
| parents | 6b931bf6bdf6 |
| children | 37d399aa8c16 |
| rev | line source |
|---|---|
| 9227 | 1 """ListViewer class. |
| 2 | |
| 3 This class implements an input/output view on the color model. It lists every | |
| 4 unique color (e.g. unique r/g/b value) found in the color database. Each | |
| 5 color is shown by small swatch and primary color name. Some colors have | |
| 6 aliases -- more than one name for the same r/g/b value. These aliases are | |
| 7 displayed in the small listbox at the bottom of the screen. | |
| 8 | |
| 9 Clicking on a color name or swatch selects that color and updates all other | |
| 10 windows. When a color is selected in a different viewer, the color list is | |
| 11 scrolled to the selected color and it is highlighted. If the selected color | |
| 12 is an r/g/b value without a name, no scrolling occurs. | |
| 13 | |
| 14 You can turn off Update On Click if all you want to see is the alias for a | |
| 15 given name, without selecting the color. | |
| 16 """ | |
| 17 | |
| 9207 | 18 from Tkinter import * |
| 19 import ColorDB | |
| 20 | |
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21 ADDTOVIEW = 'Color %List Window...' |
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22 |
| 9207 | 23 class ListViewer: |
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24 def __init__(self, switchboard, master=None): |
| 9207 | 25 self.__sb = switchboard |
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26 optiondb = switchboard.optiondb() |
| 9207 | 27 self.__lastbox = None |
| 9222 | 28 self.__dontcenter = 0 |
| 9238 | 29 # GUI |
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30 root = self.__root = Toplevel(master, class_='Pynche') |
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31 root.protocol('WM_DELETE_WINDOW', self.withdraw) |
| 9240 | 32 root.title('Pynche Color List') |
| 9207 | 33 root.iconname('Pynche Color List') |
| 34 root.bind('<Alt-q>', self.__quit) | |
| 35 root.bind('<Alt-Q>', self.__quit) | |
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36 root.bind('<Alt-w>', self.withdraw) |
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37 root.bind('<Alt-W>', self.withdraw) |
| 9207 | 38 # |
| 39 # create the canvas which holds everything, and its scrollbar | |
| 40 # | |
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41 frame = self.__frame = Frame(root) |
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42 frame.pack() |
| 9222 | 43 canvas = self.__canvas = Canvas(frame, width=160, height=300, |
| 44 borderwidth=2, relief=SUNKEN) | |
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45 self.__scrollbar = Scrollbar(frame) |
| 9207 | 46 self.__scrollbar.pack(fill=Y, side=RIGHT) |
| 47 canvas.pack(fill=BOTH, expand=1) | |
| 48 canvas.configure(yscrollcommand=(self.__scrollbar, 'set')) | |
| 49 self.__scrollbar.configure(command=(canvas, 'yview')) | |
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50 self.__populate() |
| 9222 | 51 # |
| 52 # Update on click | |
| 53 self.__uoc = BooleanVar() | |
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54 self.__uoc.set(optiondb.get('UPONCLICK', 1)) |
| 9222 | 55 self.__uocbtn = Checkbutton(root, |
| 56 text='Update on Click', | |
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57 variable=self.__uoc, |
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58 command=self.__toggleupdate) |
| 9222 | 59 self.__uocbtn.pack(expand=1, fill=BOTH) |
| 60 # | |
| 61 # alias list | |
| 62 self.__alabel = Label(root, text='Aliases:') | |
| 63 self.__alabel.pack() | |
| 64 self.__aliases = Listbox(root, height=5, | |
| 65 selectmode=BROWSE) | |
| 66 self.__aliases.pack(expand=1, fill=BOTH) | |
| 9207 | 67 |
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68 def __populate(self): |
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69 # |
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70 # create all the buttons |
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71 colordb = self.__sb.colordb() |
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72 canvas = self.__canvas |
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73 row = 0 |
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74 widest = 0 |
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75 bboxes = self.__bboxes = [] |
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76 for name in colordb.unique_names(): |
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77 exactcolor = ColorDB.triplet_to_rrggbb(colordb.find_byname(name)) |
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78 canvas.create_rectangle(5, row*20 + 5, |
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79 20, row*20 + 20, |
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80 fill=exactcolor) |
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81 textid = canvas.create_text(25, row*20 + 13, |
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82 text=name, |
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83 anchor=W) |
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84 x1, y1, textend, y2 = canvas.bbox(textid) |
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85 boxid = canvas.create_rectangle(3, row*20+3, |
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86 textend+3, row*20 + 23, |
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87 outline='', |
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88 tags=(exactcolor, 'all')) |
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89 canvas.bind('<ButtonRelease>', self.__onrelease) |
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90 bboxes.append(boxid) |
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91 if textend+3 > widest: |
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92 widest = textend+3 |
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93 row += 1 |
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94 canvheight = (row-1)*20 + 25 |
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95 canvas.config(scrollregion=(0, 0, 150, canvheight)) |
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96 for box in bboxes: |
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97 x1, y1, x2, y2 = canvas.coords(box) |
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98 canvas.coords(box, x1, y1, widest, y2) |
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99 |
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100 def __onrelease(self, event=None): |
| 9207 | 101 canvas = self.__canvas |
| 102 # find the current box | |
| 103 x = canvas.canvasx(event.x) | |
| 104 y = canvas.canvasy(event.y) | |
| 105 ids = canvas.find_overlapping(x, y, x, y) | |
| 106 for boxid in ids: | |
| 107 if boxid in self.__bboxes: | |
| 108 break | |
| 109 else: | |
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110 ## print 'No box found!' |
| 9207 | 111 return |
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112 tags = self.__canvas.gettags(boxid) |
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113 for t in tags: |
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114 if t[0] == '#': |
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115 break |
| 9207 | 116 else: |
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117 ## print 'No color tag found!' |
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118 return |
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119 red, green, blue = ColorDB.rrggbb_to_triplet(t) |
| 9222 | 120 self.__dontcenter = 1 |
| 121 if self.__uoc.get(): | |
| 122 self.__sb.update_views(red, green, blue) | |
| 123 else: | |
| 124 self.update_yourself(red, green, blue) | |
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125 self.__red, self.__green, self.__blue = red, green, blue |
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126 |
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127 def __toggleupdate(self, event=None): |
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128 if self.__uoc.get(): |
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129 self.__sb.update_views(self.__red, self.__green, self.__blue) |
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130 |
| 9207 | 131 def __quit(self, event=None): |
| 9259 | 132 self.__root.quit() |
| 9207 | 133 |
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134 def withdraw(self, event=None): |
| 9207 | 135 self.__root.withdraw() |
| 136 | |
| 137 def deiconify(self, event=None): | |
| 138 self.__root.deiconify() | |
| 139 | |
| 140 def update_yourself(self, red, green, blue): | |
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141 canvas = self.__canvas |
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142 # turn off the last box |
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143 if self.__lastbox: |
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144 canvas.itemconfigure(self.__lastbox, outline='') |
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145 # turn on the current box |
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146 colortag = ColorDB.triplet_to_rrggbb((red, green, blue)) |
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147 canvas.itemconfigure(colortag, outline='black') |
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148 self.__lastbox = colortag |
| 9222 | 149 # fill the aliases |
| 150 self.__aliases.delete(0, END) | |
| 151 try: | |
| 152 aliases = self.__sb.colordb().aliases_of(red, green, blue)[1:] | |
| 153 except ColorDB.BadColor: | |
| 154 self.__aliases.insert(END, '<no matching color>') | |
| 155 return | |
| 156 if not aliases: | |
| 157 self.__aliases.insert(END, '<no aliases>') | |
| 158 else: | |
| 159 for name in aliases: | |
| 160 self.__aliases.insert(END, name) | |
| 161 # maybe scroll the canvas so that the item is visible | |
| 162 if self.__dontcenter: | |
| 163 self.__dontcenter = 0 | |
| 164 else: | |
| 165 ig, ig, ig, y1 = canvas.coords(colortag) | |
| 166 ig, ig, ig, y2 = canvas.coords(self.__bboxes[-1]) | |
| 167 h = int(canvas['height']) * 0.5 | |
| 168 canvas.yview('moveto', (y1-h) / y2) | |
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169 |
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170 def save_options(self, optiondb): |
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171 optiondb['UPONCLICK'] = self.__uoc.get() |
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172 |
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173 def colordb_changed(self, colordb): |
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174 self.__canvas.delete('all') |
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175 self.__populate() |