Barry Warsaw | eb61fbd | 1998-10-02 16:06:27 +0000 | [diff] [blame] | 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 | |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 18 | from Tkinter import * |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 19 | import ColorDB |
| 20 | |
| 21 | class ListViewer: |
| 22 | def __init__(self, switchboard, parent=None): |
| 23 | self.__sb = switchboard |
| 24 | self.__lastbox = None |
Barry Warsaw | b44056e | 1998-10-02 15:52:10 +0000 | [diff] [blame] | 25 | self.__dontcenter = 0 |
Barry Warsaw | 964fbbb | 1998-10-05 21:15:08 +0000 | [diff] [blame] | 26 | # GUI |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 27 | root = self.__root = Toplevel(parent, class_='Pynche') |
| 28 | root.protocol('WM_DELETE_WINDOW', self.__withdraw) |
Barry Warsaw | 7c51a9a | 1998-10-05 21:31:37 +0000 | [diff] [blame] | 29 | root.title('Pynche Color List') |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 30 | root.iconname('Pynche Color List') |
| 31 | root.bind('<Alt-q>', self.__quit) |
| 32 | root.bind('<Alt-Q>', self.__quit) |
Barry Warsaw | 964fbbb | 1998-10-05 21:15:08 +0000 | [diff] [blame] | 33 | root.bind('<Alt-w>', self.__withdraw) |
| 34 | root.bind('<Alt-W>', self.__withdraw) |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 35 | # |
| 36 | # create the canvas which holds everything, and its scrollbar |
| 37 | # |
Barry Warsaw | 399f10c | 1998-10-01 22:03:25 +0000 | [diff] [blame] | 38 | frame = self.__frame = Frame(root) |
| 39 | frame.pack() |
Barry Warsaw | b44056e | 1998-10-02 15:52:10 +0000 | [diff] [blame] | 40 | canvas = self.__canvas = Canvas(frame, width=160, height=300, |
| 41 | borderwidth=2, relief=SUNKEN) |
Barry Warsaw | 399f10c | 1998-10-01 22:03:25 +0000 | [diff] [blame] | 42 | self.__scrollbar = Scrollbar(frame) |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 43 | self.__scrollbar.pack(fill=Y, side=RIGHT) |
| 44 | canvas.pack(fill=BOTH, expand=1) |
| 45 | canvas.configure(yscrollcommand=(self.__scrollbar, 'set')) |
| 46 | self.__scrollbar.configure(command=(canvas, 'yview')) |
| 47 | # |
| 48 | # create all the buttons |
| 49 | colordb = switchboard.colordb() |
| 50 | row = 0 |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 51 | widest = 0 |
| 52 | bboxes = self.__bboxes = [] |
Barry Warsaw | b44056e | 1998-10-02 15:52:10 +0000 | [diff] [blame] | 53 | for name in colordb.unique_names(): |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 54 | exactcolor = ColorDB.triplet_to_rrggbb(colordb.find_byname(name)) |
| 55 | canvas.create_rectangle(5, row*20 + 5, |
| 56 | 20, row*20 + 20, |
| 57 | fill=exactcolor) |
| 58 | textid = canvas.create_text(25, row*20 + 13, |
| 59 | text=name, |
| 60 | anchor=W) |
| 61 | x1, y1, textend, y2 = canvas.bbox(textid) |
| 62 | boxid = canvas.create_rectangle(3, row*20+3, |
| 63 | textend+3, row*20 + 23, |
| 64 | outline='', |
| 65 | tags=(exactcolor,)) |
Barry Warsaw | 399f10c | 1998-10-01 22:03:25 +0000 | [diff] [blame] | 66 | canvas.bind('<ButtonRelease>', self.__onrelease) |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 67 | bboxes.append(boxid) |
| 68 | if textend+3 > widest: |
| 69 | widest = textend+3 |
| 70 | row = row + 1 |
| 71 | canvheight = (row-1)*20 + 25 |
| 72 | canvas.config(scrollregion=(0, 0, 150, canvheight)) |
| 73 | for box in bboxes: |
| 74 | x1, y1, x2, y2 = canvas.coords(box) |
| 75 | canvas.coords(box, x1, y1, widest, y2) |
Barry Warsaw | b44056e | 1998-10-02 15:52:10 +0000 | [diff] [blame] | 76 | # |
| 77 | # Update on click |
| 78 | self.__uoc = BooleanVar() |
| 79 | self.__uoc.set(1) |
| 80 | self.__uocbtn = Checkbutton(root, |
| 81 | text='Update on Click', |
Barry Warsaw | 56af444 | 1998-10-06 18:56:31 +0000 | [diff] [blame] | 82 | variable=self.__uoc, |
| 83 | command=self.__toggleupdate) |
Barry Warsaw | b44056e | 1998-10-02 15:52:10 +0000 | [diff] [blame] | 84 | self.__uocbtn.pack(expand=1, fill=BOTH) |
| 85 | # |
| 86 | # alias list |
| 87 | self.__alabel = Label(root, text='Aliases:') |
| 88 | self.__alabel.pack() |
| 89 | self.__aliases = Listbox(root, height=5, |
| 90 | selectmode=BROWSE) |
| 91 | self.__aliases.pack(expand=1, fill=BOTH) |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 92 | |
Barry Warsaw | b55c4ad | 1998-10-02 14:34:03 +0000 | [diff] [blame] | 93 | def __onrelease(self, event=None): |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 94 | canvas = self.__canvas |
| 95 | # find the current box |
| 96 | x = canvas.canvasx(event.x) |
| 97 | y = canvas.canvasy(event.y) |
| 98 | ids = canvas.find_overlapping(x, y, x, y) |
| 99 | for boxid in ids: |
| 100 | if boxid in self.__bboxes: |
| 101 | break |
| 102 | else: |
Barry Warsaw | 399f10c | 1998-10-01 22:03:25 +0000 | [diff] [blame] | 103 | ## print 'No box found!' |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 104 | return |
Barry Warsaw | b55c4ad | 1998-10-02 14:34:03 +0000 | [diff] [blame] | 105 | tags = self.__canvas.gettags(boxid) |
| 106 | for t in tags: |
| 107 | if t[0] == '#': |
| 108 | break |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 109 | else: |
Barry Warsaw | b55c4ad | 1998-10-02 14:34:03 +0000 | [diff] [blame] | 110 | ## print 'No color tag found!' |
| 111 | return |
| 112 | red, green, blue = ColorDB.rrggbb_to_triplet(t) |
Barry Warsaw | b44056e | 1998-10-02 15:52:10 +0000 | [diff] [blame] | 113 | self.__dontcenter = 1 |
| 114 | if self.__uoc.get(): |
| 115 | self.__sb.update_views(red, green, blue) |
| 116 | else: |
| 117 | self.update_yourself(red, green, blue) |
Barry Warsaw | 56af444 | 1998-10-06 18:56:31 +0000 | [diff] [blame] | 118 | self.__red, self.__green, self.__blue = red, green, blue |
| 119 | |
| 120 | def __toggleupdate(self, event=None): |
| 121 | if self.__uoc.get(): |
| 122 | self.__sb.update_views(self.__red, self.__green, self.__blue) |
Barry Warsaw | 399f10c | 1998-10-01 22:03:25 +0000 | [diff] [blame] | 123 | |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 124 | def __quit(self, event=None): |
Barry Warsaw | 45c8d34 | 1998-10-06 19:48:35 +0000 | [diff] [blame^] | 125 | self.__root.quit() |
Barry Warsaw | 46670a2 | 1998-10-01 21:40:48 +0000 | [diff] [blame] | 126 | |
| 127 | def __withdraw(self, event=None): |
| 128 | self.__root.withdraw() |
| 129 | |
| 130 | def deiconify(self, event=None): |
| 131 | self.__root.deiconify() |
| 132 | |
| 133 | def update_yourself(self, red, green, blue): |
Barry Warsaw | b55c4ad | 1998-10-02 14:34:03 +0000 | [diff] [blame] | 134 | canvas = self.__canvas |
| 135 | # turn off the last box |
| 136 | if self.__lastbox: |
| 137 | canvas.itemconfigure(self.__lastbox, outline='') |
| 138 | # turn on the current box |
| 139 | colortag = ColorDB.triplet_to_rrggbb((red, green, blue)) |
| 140 | canvas.itemconfigure(colortag, outline='black') |
| 141 | self.__lastbox = colortag |
Barry Warsaw | b44056e | 1998-10-02 15:52:10 +0000 | [diff] [blame] | 142 | # fill the aliases |
| 143 | self.__aliases.delete(0, END) |
| 144 | try: |
| 145 | aliases = self.__sb.colordb().aliases_of(red, green, blue)[1:] |
| 146 | except ColorDB.BadColor: |
| 147 | self.__aliases.insert(END, '<no matching color>') |
| 148 | return |
| 149 | if not aliases: |
| 150 | self.__aliases.insert(END, '<no aliases>') |
| 151 | else: |
| 152 | for name in aliases: |
| 153 | self.__aliases.insert(END, name) |
| 154 | # maybe scroll the canvas so that the item is visible |
| 155 | if self.__dontcenter: |
| 156 | self.__dontcenter = 0 |
| 157 | else: |
| 158 | height = canvas['height'] |
| 159 | ig, ig, ig, y1 = canvas.coords(colortag) |
| 160 | ig, ig, ig, y2 = canvas.coords(self.__bboxes[-1]) |
| 161 | h = int(canvas['height']) * 0.5 |
| 162 | canvas.yview('moveto', (y1-h) / y2) |