mirror of https://github.com/python/cpython.git
117 lines
4.1 KiB
Python
117 lines
4.1 KiB
Python
import sys
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from Tkinter import *
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from pynche import __version__
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import ColorDB
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class ListViewer:
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def __init__(self, switchboard, parent=None):
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self.__sb = switchboard
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self.__lastbox = None
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root = self.__root = Toplevel(parent, class_='Pynche')
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root.protocol('WM_DELETE_WINDOW', self.__withdraw)
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root.title('Pynche %s' % __version__)
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root.iconname('Pynche Color List')
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root.bind('<Alt-q>', self.__quit)
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root.bind('<Alt-Q>', self.__quit)
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#
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# create the canvas which holds everything, and its scrollbar
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#
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frame = self.__frame = Frame(root)
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frame.pack()
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canvas = self.__canvas = Canvas(frame, width=160, height=300)
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self.__scrollbar = Scrollbar(frame)
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self.__scrollbar.pack(fill=Y, side=RIGHT)
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canvas.pack(fill=BOTH, expand=1)
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canvas.configure(yscrollcommand=(self.__scrollbar, 'set'))
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self.__scrollbar.configure(command=(canvas, 'yview'))
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#
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# create all the buttons
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colordb = switchboard.colordb()
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row = 0
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names = colordb.all_names()
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names.sort()
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widest = 0
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bboxes = self.__bboxes = []
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for name in names:
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exactcolor = ColorDB.triplet_to_rrggbb(colordb.find_byname(name))
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canvas.create_rectangle(5, row*20 + 5,
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20, row*20 + 20,
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fill=exactcolor)
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textid = canvas.create_text(25, row*20 + 13,
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text=name,
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anchor=W)
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x1, y1, textend, y2 = canvas.bbox(textid)
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boxid = canvas.create_rectangle(3, row*20+3,
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textend+3, row*20 + 23,
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outline='',
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tags=(exactcolor,))
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canvas.bind('<ButtonRelease>', self.__onrelease)
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canvas.bind('<Motion>', self.__onmotion)
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bboxes.append(boxid)
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if textend+3 > widest:
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widest = textend+3
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row = row + 1
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canvheight = (row-1)*20 + 25
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canvas.config(scrollregion=(0, 0, 150, canvheight))
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for box in bboxes:
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x1, y1, x2, y2 = canvas.coords(box)
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canvas.coords(box, x1, y1, widest, y2)
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#
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# Update while dragging?
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#
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self.__uwd = BooleanVar()
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self.__uwdbtn = Checkbutton(root,
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text='Update while dragging',
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variable=self.__uwd)
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self.__uwdbtn.pack()
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def __onmotion(self, event=None):
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canvas = self.__canvas
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# find the current box
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x = canvas.canvasx(event.x)
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y = canvas.canvasy(event.y)
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ids = canvas.find_overlapping(x, y, x, y)
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for boxid in ids:
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if boxid in self.__bboxes:
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break
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else:
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## print 'No box found!'
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return
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if self.__uwd.get():
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self.__onrelease(event)
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else:
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self.__selectbox(boxid)
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def __selectbox(self, boxid):
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canvas = self.__canvas
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# turn off the last box
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if self.__lastbox:
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canvas.itemconfigure(self.__lastbox, outline='')
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self.__lastbox = boxid
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canvas.itemconfigure(boxid, outline='black')
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def __onrelease(self, event=None):
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if self.__lastbox:
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tags = self.__canvas.gettags(self.__lastbox)
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for t in tags:
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if t[0] == '#':
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break
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else:
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## print 'No color tag found!'
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return
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red, green, blue = ColorDB.rrggbb_to_triplet(t)
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self.__sb.update_views(red, green, blue)
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def __quit(self, event=None):
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sys.exit(0)
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def __withdraw(self, event=None):
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self.__root.withdraw()
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def deiconify(self, event=None):
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self.__root.deiconify()
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def update_yourself(self, red, green, blue):
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colorname = ColorDB.triplet_to_rrggbb((red, green, blue))
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self.__selectbox(colorname)
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