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Edit File : TypeinViewer.py \| Size : 5.96 KB
"""TypeinViewer class. The TypeinViewer is what you see at the lower right of the main Pynche widget. It contains three text entry fields, one each for red, green, blue. Input into these windows is highly constrained; it only allows you to enter values that are legal for a color axis. This usually means 0-255 for decimal input and 0x0 - 0xff for hex input. You can toggle whether you want to view and input the values in either decimal or hex by clicking on Hexadecimal. By clicking on Update while typing, the color selection will be made on every change to the text field. Otherwise, you must hit Return or Tab to select the color. """ from Tkinter import * class TypeinViewer: def __init__(self, switchboard, master=None): # non-gui ivars self.__sb = switchboard optiondb = switchboard.optiondb() self.__hexp = BooleanVar() self.__hexp.set(optiondb.get('HEXTYPE', 0)) self.__uwtyping = BooleanVar() self.__uwtyping.set(optiondb.get('UPWHILETYPE', 0)) # create the gui self.__frame = Frame(master, relief=RAISED, borderwidth=1) self.__frame.grid(row=3, column=1, sticky='NSEW') # Red self.__xl = Label(self.__frame, text='Red:') self.__xl.grid(row=0, column=0, sticky=E) subframe = Frame(self.__frame) subframe.grid(row=0, column=1) self.__xox = Label(subframe, text='0x') self.__xox.grid(row=0, column=0, sticky=E) self.__xox['font'] = 'courier' self.__x = Entry(subframe, width=3) self.__x.grid(row=0, column=1) self.__x.bindtags(self.__x.bindtags() + ('Normalize', 'Update')) self.__x.bind_class('Normalize', '<Key>', self.__normalize) self.__x.bind_class('Update' , '<Key>', self.__maybeupdate) # Green self.__yl = Label(self.__frame, text='Green:') self.__yl.grid(row=1, column=0, sticky=E) subframe = Frame(self.__frame) subframe.grid(row=1, column=1) self.__yox = Label(subframe, text='0x') self.__yox.grid(row=0, column=0, sticky=E) self.__yox['font'] = 'courier' self.__y = Entry(subframe, width=3) self.__y.grid(row=0, column=1) self.__y.bindtags(self.__y.bindtags() + ('Normalize', 'Update')) # Blue self.__zl = Label(self.__frame, text='Blue:') self.__zl.grid(row=2, column=0, sticky=E) subframe = Frame(self.__frame) subframe.grid(row=2, column=1) self.__zox = Label(subframe, text='0x') self.__zox.grid(row=0, column=0, sticky=E) self.__zox['font'] = 'courier' self.__z = Entry(subframe, width=3) self.__z.grid(row=0, column=1) self.__z.bindtags(self.__z.bindtags() + ('Normalize', 'Update')) # Update while typing? self.__uwt = Checkbutton(self.__frame, text='Update while typing', variable=self.__uwtyping) self.__uwt.grid(row=3, column=0, columnspan=2, sticky=W) # Hex/Dec self.__hex = Checkbutton(self.__frame, text='Hexadecimal', variable=self.__hexp, command=self.__togglehex) self.__hex.grid(row=4, column=0, columnspan=2, sticky=W) def __togglehex(self, event=None): red, green, blue = self.__sb.current_rgb() if self.__hexp.get(): label = '0x' else: label = ' ' self.__xox['text'] = label self.__yox['text'] = label self.__zox['text'] = label self.update_yourself(red, green, blue) def __normalize(self, event=None): ew = event.widget contents = ew.get() icursor = ew.index(INSERT) if contents and contents[0] in 'xX' and self.__hexp.get(): contents = '0' + contents # Figure out the contents in the current base. try: if self.__hexp.get(): v = int(contents, 16) else: v = int(contents) except ValueError: v = None # If value is not legal, or empty, delete the last character inserted # and ring the bell. Don't ring the bell if the field is empty (it'll # just equal zero. if v is None: pass elif v < 0 or v > 255: i = ew.index(INSERT) if event.char: contents = contents[:i-1] + contents[i:] icursor -= 1 ew.bell() elif self.__hexp.get(): contents = hex(v)[2:] else: contents = int(v) ew.delete(0, END) ew.insert(0, contents) ew.icursor(icursor) def __maybeupdate(self, event=None): if self.__uwtyping.get() or event.keysym in ('Return', 'Tab'): self.__update(event) def __update(self, event=None): redstr = self.__x.get() or '0' greenstr = self.__y.get() or '0' bluestr = self.__z.get() or '0' if self.__hexp.get(): base = 16 else: base = 10 red, green, blue = [int(x, base) for x in (redstr, greenstr, bluestr)] self.__sb.update_views(red, green, blue) def update_yourself(self, red, green, blue): if self.__hexp.get(): sred, sgreen, sblue = [hex(x)[2:] for x in (red, green, blue)] else: sred, sgreen, sblue = red, green, blue x, y, z = self.__x, self.__y, self.__z xicursor = x.index(INSERT) yicursor = y.index(INSERT) zicursor = z.index(INSERT) x.delete(0, END) y.delete(0, END) z.delete(0, END) x.insert(0, sred) y.insert(0, sgreen) z.insert(0, sblue) x.icursor(xicursor) y.icursor(yicursor) z.icursor(zicursor) def hexp_var(self): return self.__hexp def save_options(self, optiondb): optiondb['HEXTYPE'] = self.__hexp.get() optiondb['UPWHILETYPE'] = self.__uwtyping.get() Back

Edit File : TypeinViewer.py | Size : 5.96 KB

"""TypeinViewer class.

The TypeinViewer is what you see at the lower right of the main Pynche
widget.  It contains three text entry fields, one each for red, green, blue.
Input into these windows is highly constrained; it only allows you to enter
values that are legal for a color axis.  This usually means 0-255 for decimal
input and 0x0 - 0xff for hex input.

You can toggle whether you want to view and input the values in either decimal
or hex by clicking on Hexadecimal.  By clicking on Update while typing, the
color selection will be made on every change to the text field.  Otherwise,
you must hit Return or Tab to select the color.
"""

from Tkinter import *

class TypeinViewer:
    def __init__(self, switchboard, master=None):
        # non-gui ivars
        self.__sb = switchboard
        optiondb = switchboard.optiondb()
        self.__hexp = BooleanVar()
        self.__hexp.set(optiondb.get('HEXTYPE', 0))
        self.__uwtyping = BooleanVar()
        self.__uwtyping.set(optiondb.get('UPWHILETYPE', 0))
        # create the gui
        self.__frame = Frame(master, relief=RAISED, borderwidth=1)
        self.__frame.grid(row=3, column=1, sticky='NSEW')
        # Red
        self.__xl = Label(self.__frame, text='Red:')
        self.__xl.grid(row=0, column=0, sticky=E)
        subframe = Frame(self.__frame)
        subframe.grid(row=0, column=1)
        self.__xox = Label(subframe, text='0x')
        self.__xox.grid(row=0, column=0, sticky=E)
        self.__xox['font'] = 'courier'
        self.__x = Entry(subframe, width=3)
        self.__x.grid(row=0, column=1)
        self.__x.bindtags(self.__x.bindtags() + ('Normalize', 'Update'))
        self.__x.bind_class('Normalize', '<Key>', self.__normalize)
        self.__x.bind_class('Update'   , '<Key>', self.__maybeupdate)
        # Green
        self.__yl = Label(self.__frame, text='Green:')
        self.__yl.grid(row=1, column=0, sticky=E)
        subframe = Frame(self.__frame)
        subframe.grid(row=1, column=1)
        self.__yox = Label(subframe, text='0x')
        self.__yox.grid(row=0, column=0, sticky=E)
        self.__yox['font'] = 'courier'
        self.__y = Entry(subframe, width=3)
        self.__y.grid(row=0, column=1)
        self.__y.bindtags(self.__y.bindtags() + ('Normalize', 'Update'))
        # Blue
        self.__zl = Label(self.__frame, text='Blue:')
        self.__zl.grid(row=2, column=0, sticky=E)
        subframe = Frame(self.__frame)
        subframe.grid(row=2, column=1)
        self.__zox = Label(subframe, text='0x')
        self.__zox.grid(row=0, column=0, sticky=E)
        self.__zox['font'] = 'courier'
        self.__z = Entry(subframe, width=3)
        self.__z.grid(row=0, column=1)
        self.__z.bindtags(self.__z.bindtags() + ('Normalize', 'Update'))
        # Update while typing?
        self.__uwt = Checkbutton(self.__frame,
                                 text='Update while typing',
                                 variable=self.__uwtyping)
        self.__uwt.grid(row=3, column=0, columnspan=2, sticky=W)
        # Hex/Dec
        self.__hex = Checkbutton(self.__frame,
                                 text='Hexadecimal',
                                 variable=self.__hexp,
                                 command=self.__togglehex)
        self.__hex.grid(row=4, column=0, columnspan=2, sticky=W)

def __togglehex(self, event=None):
        red, green, blue = self.__sb.current_rgb()
        if self.__hexp.get():
            label = '0x'
        else:
            label = '  '
        self.__xox['text'] = label
        self.__yox['text'] = label
        self.__zox['text'] = label
        self.update_yourself(red, green, blue)

def __normalize(self, event=None):
        ew = event.widget
        contents = ew.get()
        icursor = ew.index(INSERT)
        if contents and contents[0] in 'xX' and self.__hexp.get():
            contents = '0' + contents
        # Figure out the contents in the current base.
        try:
            if self.__hexp.get():
                v = int(contents, 16)
            else:
                v = int(contents)
        except ValueError:
            v = None
        # If value is not legal, or empty, delete the last character inserted
        # and ring the bell.  Don't ring the bell if the field is empty (it'll
        # just equal zero.
        if v is None:
            pass
        elif v < 0 or v > 255:
            i = ew.index(INSERT)
            if event.char:
                contents = contents[:i-1] + contents[i:]
                icursor -= 1
            ew.bell()
        elif self.__hexp.get():
            contents = hex(v)[2:]
        else:
            contents = int(v)
        ew.delete(0, END)
        ew.insert(0, contents)
        ew.icursor(icursor)

def __maybeupdate(self, event=None):
        if self.__uwtyping.get() or event.keysym in ('Return', 'Tab'):
            self.__update(event)

def __update(self, event=None):
        redstr = self.__x.get() or '0'
        greenstr = self.__y.get() or '0'
        bluestr = self.__z.get() or '0'
        if self.__hexp.get():
            base = 16
        else:
            base = 10
        red, green, blue = [int(x, base) for x in (redstr, greenstr, bluestr)]
        self.__sb.update_views(red, green, blue)

def update_yourself(self, red, green, blue):
        if self.__hexp.get():
            sred, sgreen, sblue = [hex(x)[2:] for x in (red, green, blue)]
        else:
            sred, sgreen, sblue = red, green, blue
        x, y, z = self.__x, self.__y, self.__z
        xicursor = x.index(INSERT)
        yicursor = y.index(INSERT)
        zicursor = z.index(INSERT)
        x.delete(0, END)
        y.delete(0, END)
        z.delete(0, END)
        x.insert(0, sred)
        y.insert(0, sgreen)
        z.insert(0, sblue)
        x.icursor(xicursor)
        y.icursor(yicursor)
        z.icursor(zicursor)

def hexp_var(self):
        return self.__hexp

def save_options(self, optiondb):
        optiondb['HEXTYPE'] = self.__hexp.get()
        optiondb['UPWHILETYPE'] = self.__uwtyping.get()

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