| 1 | """DetailsViewer class.
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| 2 |
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| 3 | This class implements a pure input window which allows you to meticulously
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| 4 | edit the current color. You have both mouse control of the color (via the
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| 5 | buttons along the bottom row), and there are keyboard bindings for each of the
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| 6 | increment/decrement buttons.
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| 7 |
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| 8 | The top three check buttons allow you to specify which of the three color
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| 9 | variations are tied together when incrementing and decrementing. Red, green,
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| 10 | and blue are self evident. By tying together red and green, you can modify
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| 11 | the yellow level of the color. By tying together red and blue, you can modify
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| 12 | the magenta level of the color. By tying together green and blue, you can
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| 13 | modify the cyan level, and by tying all three together, you can modify the
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| 14 | grey level.
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| 15 |
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| 16 | The behavior at the boundaries (0 and 255) are defined by the `At boundary'
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| 17 | option menu:
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| 18 |
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| 19 | Stop
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| 20 | When the increment or decrement would send any of the tied variations
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| 21 | out of bounds, the entire delta is discarded.
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| 22 |
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| 23 | Wrap Around
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| 24 | When the increment or decrement would send any of the tied variations
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| 25 | out of bounds, the out of bounds variation is wrapped around to the
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| 26 | other side. Thus if red were at 238 and 25 were added to it, red
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| 27 | would have the value 7.
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| 28 |
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| 29 | Preseve Distance
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| 30 | When the increment or decrement would send any of the tied variations
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| 31 | out of bounds, all tied variations are wrapped as one, so as to
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| 32 | preserve the distance between them. Thus if green and blue were tied,
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| 33 | and green was at 238 while blue was at 223, and an increment of 25
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| 34 | were applied, green would be at 15 and blue would be at 0.
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| 35 |
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| 36 | Squash
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| 37 | When the increment or decrement would send any of the tied variations
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| 38 | out of bounds, the out of bounds variation is set to the ceiling of
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| 39 | 255 or floor of 0, as appropriate. In this way, all tied variations
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| 40 | are squashed to one edge or the other.
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| 41 |
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| 42 | The following key bindings can be used as accelerators. Note that Pynche can
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| 43 | fall behind if you hold the key down as a key repeat:
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| 44 |
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| 45 | Left arrow == -1
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| 46 | Right arrow == +1
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| 47 |
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| 48 | Control + Left == -10
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| 49 | Control + Right == 10
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| 50 |
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| 51 | Shift + Left == -25
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| 52 | Shift + Right == +25
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| 53 | """
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| 54 |
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| 55 | from Tkinter import *
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| 56 |
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| 57 | STOP = 'Stop'
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| 58 | WRAP = 'Wrap Around'
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| 59 | RATIO = 'Preserve Distance'
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| 60 | GRAV = 'Squash'
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| 61 |
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| 62 | ADDTOVIEW = 'Details Window...'
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| 63 |
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| 64 | |
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| 65 |
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| 66 | class DetailsViewer:
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| 67 | def __init__(self, switchboard, master=None):
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| 68 | self.__sb = switchboard
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| 69 | optiondb = switchboard.optiondb()
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| 70 | self.__red, self.__green, self.__blue = switchboard.current_rgb()
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| 71 | # GUI
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| 72 | root = self.__root = Toplevel(master, class_='Pynche')
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| 73 | root.protocol('WM_DELETE_WINDOW', self.withdraw)
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| 74 | root.title('Pynche Details Window')
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| 75 | root.iconname('Pynche Details Window')
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| 76 | root.bind('<Alt-q>', self.__quit)
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| 77 | root.bind('<Alt-Q>', self.__quit)
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| 78 | root.bind('<Alt-w>', self.withdraw)
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| 79 | root.bind('<Alt-W>', self.withdraw)
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| 80 | # accelerators
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| 81 | root.bind('<KeyPress-Left>', self.__minus1)
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| 82 | root.bind('<KeyPress-Right>', self.__plus1)
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| 83 | root.bind('<Control-KeyPress-Left>', self.__minus10)
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| 84 | root.bind('<Control-KeyPress-Right>', self.__plus10)
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| 85 | root.bind('<Shift-KeyPress-Left>', self.__minus25)
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| 86 | root.bind('<Shift-KeyPress-Right>', self.__plus25)
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| 87 | #
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| 88 | # color ties
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| 89 | frame = self.__frame = Frame(root)
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| 90 | frame.pack(expand=YES, fill=X)
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| 91 | self.__l1 = Label(frame, text='Move Sliders:')
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| 92 | self.__l1.grid(row=1, column=0, sticky=E)
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| 93 | self.__rvar = IntVar()
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| 94 | self.__rvar.set(optiondb.get('RSLIDER', 4))
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| 95 | self.__radio1 = Checkbutton(frame, text='Red',
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| 96 | variable=self.__rvar,
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| 97 | command=self.__effect,
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| 98 | onvalue=4, offvalue=0)
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| 99 | self.__radio1.grid(row=1, column=1, sticky=W)
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| 100 | self.__gvar = IntVar()
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| 101 | self.__gvar.set(optiondb.get('GSLIDER', 2))
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| 102 | self.__radio2 = Checkbutton(frame, text='Green',
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| 103 | variable=self.__gvar,
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| 104 | command=self.__effect,
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| 105 | onvalue=2, offvalue=0)
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| 106 | self.__radio2.grid(row=2, column=1, sticky=W)
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| 107 | self.__bvar = IntVar()
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| 108 | self.__bvar.set(optiondb.get('BSLIDER', 1))
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| 109 | self.__radio3 = Checkbutton(frame, text='Blue',
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| 110 | variable=self.__bvar,
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| 111 | command=self.__effect,
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| 112 | onvalue=1, offvalue=0)
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| 113 | self.__radio3.grid(row=3, column=1, sticky=W)
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| 114 | self.__l2 = Label(frame)
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| 115 | self.__l2.grid(row=4, column=1, sticky=W)
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| 116 | self.__effect()
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| 117 | #
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| 118 | # Boundary behavior
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| 119 | self.__l3 = Label(frame, text='At boundary:')
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| 120 | self.__l3.grid(row=5, column=0, sticky=E)
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| 121 | self.__boundvar = StringVar()
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| 122 | self.__boundvar.set(optiondb.get('ATBOUND', STOP))
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| 123 | self.__omenu = OptionMenu(frame, self.__boundvar,
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| 124 | STOP, WRAP, RATIO, GRAV)
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| 125 | self.__omenu.grid(row=5, column=1, sticky=W)
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| 126 | self.__omenu.configure(width=17)
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| 127 | #
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| 128 | # Buttons
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| 129 | frame = self.__btnframe = Frame(frame)
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| 130 | frame.grid(row=0, column=0, columnspan=2, sticky='EW')
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| 131 | self.__down25 = Button(frame, text='-25',
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| 132 | command=self.__minus25)
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| 133 | self.__down10 = Button(frame, text='-10',
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| 134 | command=self.__minus10)
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| 135 | self.__down1 = Button(frame, text='-1',
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| 136 | command=self.__minus1)
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| 137 | self.__up1 = Button(frame, text='+1',
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| 138 | command=self.__plus1)
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| 139 | self.__up10 = Button(frame, text='+10',
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| 140 | command=self.__plus10)
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| 141 | self.__up25 = Button(frame, text='+25',
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| 142 | command=self.__plus25)
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| 143 | self.__down25.pack(expand=YES, fill=X, side=LEFT)
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| 144 | self.__down10.pack(expand=YES, fill=X, side=LEFT)
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| 145 | self.__down1.pack(expand=YES, fill=X, side=LEFT)
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| 146 | self.__up1.pack(expand=YES, fill=X, side=LEFT)
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| 147 | self.__up10.pack(expand=YES, fill=X, side=LEFT)
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| 148 | self.__up25.pack(expand=YES, fill=X, side=LEFT)
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| 149 |
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| 150 | def __effect(self, event=None):
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| 151 | tie = self.__rvar.get() + self.__gvar.get() + self.__bvar.get()
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| 152 | if tie in (0, 1, 2, 4):
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| 153 | text = ''
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| 154 | else:
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| 155 | text = '(= %s Level)' % {3: 'Cyan',
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| 156 | 5: 'Magenta',
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| 157 | 6: 'Yellow',
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| 158 | 7: 'Grey'}[tie]
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| 159 | self.__l2.configure(text=text)
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| 160 |
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| 161 | def __quit(self, event=None):
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| 162 | self.__root.quit()
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| 163 |
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| 164 | def withdraw(self, event=None):
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| 165 | self.__root.withdraw()
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| 166 |
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| 167 | def deiconify(self, event=None):
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| 168 | self.__root.deiconify()
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| 169 |
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| 170 | def __minus25(self, event=None):
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| 171 | self.__delta(-25)
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| 172 |
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| 173 | def __minus10(self, event=None):
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| 174 | self.__delta(-10)
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| 175 |
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| 176 | def __minus1(self, event=None):
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| 177 | self.__delta(-1)
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| 178 |
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| 179 | def __plus1(self, event=None):
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| 180 | self.__delta(1)
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| 181 |
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| 182 | def __plus10(self, event=None):
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| 183 | self.__delta(10)
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| 184 |
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| 185 | def __plus25(self, event=None):
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| 186 | self.__delta(25)
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| 187 |
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| 188 | def __delta(self, delta):
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| 189 | tie = []
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| 190 | if self.__rvar.get():
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| 191 | red = self.__red + delta
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| 192 | tie.append(red)
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| 193 | else:
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| 194 | red = self.__red
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| 195 | if self.__gvar.get():
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| 196 | green = self.__green + delta
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| 197 | tie.append(green)
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| 198 | else:
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| 199 | green = self.__green
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| 200 | if self.__bvar.get():
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| 201 | blue = self.__blue + delta
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| 202 | tie.append(blue)
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| 203 | else:
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| 204 | blue = self.__blue
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| 205 | # now apply at boundary behavior
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| 206 | atbound = self.__boundvar.get()
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| 207 | if atbound == STOP:
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| 208 | if red < 0 or green < 0 or blue < 0 or \
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| 209 | red > 255 or green > 255 or blue > 255:
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| 210 | # then
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| 211 | red, green, blue = self.__red, self.__green, self.__blue
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| 212 | elif atbound == WRAP or (atbound == RATIO and len(tie) < 2):
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| 213 | if red < 0:
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| 214 | red += 256
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| 215 | if green < 0:
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| 216 | green += 256
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| 217 | if blue < 0:
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| 218 | blue += 256
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| 219 | if red > 255:
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| 220 | red -= 256
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| 221 | if green > 255:
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| 222 | green -= 256
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| 223 | if blue > 255:
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| 224 | blue -= 256
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| 225 | elif atbound == RATIO:
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| 226 | # for when 2 or 3 colors are tied together
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| 227 | dir = 0
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| 228 | for c in tie:
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| 229 | if c < 0:
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| 230 | dir = -1
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| 231 | elif c > 255:
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| 232 | dir = 1
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| 233 | if dir == -1:
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| 234 | delta = max(tie)
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| 235 | if self.__rvar.get():
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| 236 | red = red + 255 - delta
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| 237 | if self.__gvar.get():
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| 238 | green = green + 255 - delta
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| 239 | if self.__bvar.get():
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| 240 | blue = blue + 255 - delta
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| 241 | elif dir == 1:
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| 242 | delta = min(tie)
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| 243 | if self.__rvar.get():
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| 244 | red = red - delta
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| 245 | if self.__gvar.get():
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| 246 | green = green - delta
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| 247 | if self.__bvar.get():
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| 248 | blue = blue - delta
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| 249 | elif atbound == GRAV:
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| 250 | if red < 0:
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| 251 | red = 0
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| 252 | if green < 0:
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| 253 | green = 0
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| 254 | if blue < 0:
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| 255 | blue = 0
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| 256 | if red > 255:
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| 257 | red = 255
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| 258 | if green > 255:
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| 259 | green = 255
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| 260 | if blue > 255:
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| 261 | blue = 255
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| 262 | self.__sb.update_views(red, green, blue)
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| 263 | self.__root.update_idletasks()
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| 264 |
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| 265 | def update_yourself(self, red, green, blue):
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| 266 | self.__red = red
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| 267 | self.__green = green
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| 268 | self.__blue = blue
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| 269 |
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| 270 | def save_options(self, optiondb):
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| 271 | optiondb['RSLIDER'] = self.__rvar.get()
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| 272 | optiondb['GSLIDER'] = self.__gvar.get()
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| 273 | optiondb['BSLIDER'] = self.__bvar.get()
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| 274 | optiondb['ATBOUND'] = self.__boundvar.get()
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