golden hour

/lib64/python2.7/Demo/tkinter/guido

File/Folder	Size	Actions
AttrDialog.py	14 KB
AttrDialog.pyc	18.34 KB
AttrDialog.pyo	18.34 KB
ManPage.py	6.7 KB
ManPage.pyc	6.27 KB
ManPage.pyo	6.27 KB
MimeViewer.py	4.39 KB
MimeViewer.pyc	4.83 KB
MimeViewer.pyo	4.83 KB
ShellWindow.py	4.07 KB
ShellWindow.pyc	5.47 KB
ShellWindow.pyo	5.47 KB
brownian.py	1.07 KB
brownian.pyc	1.59 KB
brownian.pyo	1.59 KB
brownian2.py	1.35 KB
brownian2.pyc	1.74 KB
brownian2.pyo	1.74 KB
canvasevents.py	6.45 KB
canvasevents.pyc	10.46 KB
canvasevents.pyo	10.46 KB
dialog.py	3.13 KB
dialog.pyc	3.11 KB
dialog.pyo	3.11 KB
electrons.py	2.27 KB
electrons.pyc	2.33 KB
electrons.pyo	2.33 KB
hanoi.py	4.54 KB
hanoi.pyc	3.82 KB
hanoi.pyo	3.82 KB
hello.py	331 B
hello.pyc	701 B
hello.pyo	701 B
imagedraw.py	509 B
imagedraw.pyc	1.13 KB
imagedraw.pyo	1.13 KB
imageview.py	205 B
imageview.pyc	570 B
imageview.pyo	570 B
kill.py	3.79 KB
kill.pyc	4.81 KB
kill.pyo	4.81 KB
listtree.py	991 B
listtree.pyc	1.5 KB
listtree.pyo	1.5 KB
mbox.py	7.3 KB
mbox.pyc	8.17 KB
mbox.pyo	8.17 KB
newmenubardemo.py	1.2 KB
newmenubardemo.pyc	1.59 KB
newmenubardemo.pyo	1.59 KB
optionmenu.py	441 B
optionmenu.pyc	594 B
optionmenu.pyo	594 B
paint.py	1.85 KB
paint.pyc	2.19 KB
paint.pyo	2.19 KB
rmt.py	4.39 KB
rmt.pyc	4.93 KB
rmt.pyo	4.93 KB
solitaire.py	17.37 KB
solitaire.pyc	20.41 KB
solitaire.pyo	20.41 KB
sortvisu.py	18.89 KB
sortvisu.pyc	23.18 KB
sortvisu.pyo	23.18 KB
ss1.py	25.57 KB
ss1.pyc	31.67 KB
ss1.pyo	31.07 KB
svkill.py	4.75 KB
svkill.pyc	5.8 KB
svkill.pyo	5.8 KB
switch.py	1.52 KB
switch.pyc	2.85 KB
switch.pyo	2.85 KB
tkman.py	8.79 KB
tkman.pyc	8.88 KB
tkman.pyo	8.88 KB
wish.py	623 B
wish.pyc	736 B
wish.pyo	736 B

Edit: sortvisu.py

#! /usr/bin/env python

"""Sorting algorithms visualizer using Tkinter.

This module is comprised of three ``components'':

- an array visualizer with methods that implement basic sorting
operations (compare, swap) as well as methods for ``annotating'' the
sorting algorithm (e.g. to show the pivot element);

- a number of sorting algorithms (currently quicksort, insertion sort,
selection sort and bubble sort, as well as a randomization function),
all using the array visualizer for its basic operations and with calls
to its annotation methods;

- and a ``driver'' class which can be used as a Grail applet or as a
stand-alone application.

"""

from Tkinter import *
from Canvas import Line, Rectangle
import random

XGRID = 10
YGRID = 10
WIDTH = 6

class Array:

def __init__(self, master, data=None):
        self.master = master
        self.frame = Frame(self.master)
        self.frame.pack(fill=X)
        self.label = Label(self.frame)
        self.label.pack()
        self.canvas = Canvas(self.frame)
        self.canvas.pack()
        self.report = Label(self.frame)
        self.report.pack()
        self.left = Line(self.canvas, 0, 0, 0, 0)
        self.right = Line(self.canvas, 0, 0, 0, 0)
        self.pivot = Line(self.canvas, 0, 0, 0, 0)
        self.items = []
        self.size = self.maxvalue = 0
        if data:
            self.setdata(data)

def setdata(self, data):
        olditems = self.items
        self.items = []
        for item in olditems:
            item.delete()
        self.size = len(data)
        self.maxvalue = max(data)
        self.canvas.config(width=(self.size+1)*XGRID,
                           height=(self.maxvalue+1)*YGRID)
        for i in range(self.size):
            self.items.append(ArrayItem(self, i, data[i]))
        self.reset("Sort demo, size %d" % self.size)

speed = "normal"

def setspeed(self, speed):
        self.speed = speed

def destroy(self):
        self.frame.destroy()

in_mainloop = 0
    stop_mainloop = 0

def cancel(self):
        self.stop_mainloop = 1
        if self.in_mainloop:
            self.master.quit()

def step(self):
        if self.in_mainloop:
            self.master.quit()

Cancelled = "Array.Cancelled"       # Exception

def wait(self, msecs):
        if self.speed == "fastest":
            msecs = 0
        elif self.speed == "fast":
            msecs = msecs//10
        elif self.speed == "single-step":
            msecs = 1000000000
        if not self.stop_mainloop:
            self.master.update()
            id = self.master.after(msecs, self.master.quit)
            self.in_mainloop = 1
            self.master.mainloop()
            self.master.after_cancel(id)
            self.in_mainloop = 0
        if self.stop_mainloop:
            self.stop_mainloop = 0
            self.message("Cancelled")
            raise Array.Cancelled

def getsize(self):
        return self.size

def show_partition(self, first, last):
        for i in range(self.size):
            item = self.items[i]
            if first <= i < last:
                item.item.config(fill='red')
            else:
                item.item.config(fill='orange')
        self.hide_left_right_pivot()

def hide_partition(self):
        for i in range(self.size):
            item = self.items[i]
            item.item.config(fill='red')
        self.hide_left_right_pivot()

def show_left(self, left):
        if not 0 <= left < self.size:
            self.hide_left()
            return
        x1, y1, x2, y2 = self.items[left].position()
##      top, bot = HIRO
        self.left.coords([(x1-2, 0), (x1-2, 9999)])
        self.master.update()

def show_right(self, right):
        if not 0 <= right < self.size:
            self.hide_right()
            return
        x1, y1, x2, y2 = self.items[right].position()
        self.right.coords(((x2+2, 0), (x2+2, 9999)))
        self.master.update()

def hide_left_right_pivot(self):
        self.hide_left()
        self.hide_right()
        self.hide_pivot()

def hide_left(self):
        self.left.coords(((0, 0), (0, 0)))

def hide_right(self):
        self.right.coords(((0, 0), (0, 0)))

def show_pivot(self, pivot):
        x1, y1, x2, y2 = self.items[pivot].position()
        self.pivot.coords(((0, y1-2), (9999, y1-2)))

def hide_pivot(self):
        self.pivot.coords(((0, 0), (0, 0)))

def swap(self, i, j):
        if i == j: return
        self.countswap()
        item = self.items[i]
        other = self.items[j]
        self.items[i], self.items[j] = other, item
        item.swapwith(other)

def compare(self, i, j):
        self.countcompare()
        item = self.items[i]
        other = self.items[j]
        return item.compareto(other)

def reset(self, msg):
        self.ncompares = 0
        self.nswaps = 0
        self.message(msg)
        self.updatereport()
        self.hide_partition()

def message(self, msg):
        self.label.config(text=msg)

def countswap(self):
        self.nswaps = self.nswaps + 1
        self.updatereport()

def countcompare(self):
        self.ncompares = self.ncompares + 1
        self.updatereport()

def updatereport(self):
        text = "%d cmps, %d swaps" % (self.ncompares, self.nswaps)
        self.report.config(text=text)

class ArrayItem:

def __init__(self, array, index, value):
        self.array = array
        self.index = index
        self.value = value
        x1, y1, x2, y2 = self.position()
        self.item = Rectangle(array.canvas, x1, y1, x2, y2,
                              fill='red', outline='black', width=1)
        self.item.bind('<Button-1>', self.mouse_down)
        self.item.bind('<Button1-Motion>', self.mouse_move)
        self.item.bind('<ButtonRelease-1>', self.mouse_up)

def delete(self):
        item = self.item
        self.array = None
        self.item = None
        item.delete()

def mouse_down(self, event):
        self.lastx = event.x
        self.lasty = event.y
        self.origx = event.x
        self.origy = event.y
        self.item.tkraise()

def mouse_move(self, event):
        self.item.move(event.x - self.lastx, event.y - self.lasty)
        self.lastx = event.x
        self.lasty = event.y

def mouse_up(self, event):
        i = self.nearestindex(event.x)
        if i >= self.array.getsize():
            i = self.array.getsize() - 1
        if i < 0:
            i = 0
        other = self.array.items[i]
        here = self.index
        self.array.items[here], self.array.items[i] = other, self
        self.index = i
        x1, y1, x2, y2 = self.position()
        self.item.coords(((x1, y1), (x2, y2)))
        other.setindex(here)

def setindex(self, index):
        nsteps = steps(self.index, index)
        if not nsteps: return
        if self.array.speed == "fastest":
            nsteps = 0
        oldpts = self.position()
        self.index = index
        newpts = self.position()
        trajectory = interpolate(oldpts, newpts, nsteps)
        self.item.tkraise()
        for pts in trajectory:
            self.item.coords((pts[:2], pts[2:]))
            self.array.wait(50)

def swapwith(self, other):
        nsteps = steps(self.index, other.index)
        if not nsteps: return
        if self.array.speed == "fastest":
            nsteps = 0
        myoldpts = self.position()
        otheroldpts = other.position()
        self.index, other.index = other.index, self.index
        mynewpts = self.position()
        othernewpts = other.position()
        myfill = self.item['fill']
        otherfill = other.item['fill']
        self.item.config(fill='green')
        other.item.config(fill='yellow')
        self.array.master.update()
        if self.array.speed == "single-step":
            self.item.coords((mynewpts[:2], mynewpts[2:]))
            other.item.coords((othernewpts[:2], othernewpts[2:]))
            self.array.master.update()
            self.item.config(fill=myfill)
            other.item.config(fill=otherfill)
            self.array.wait(0)
            return
        mytrajectory = interpolate(myoldpts, mynewpts, nsteps)
        othertrajectory = interpolate(otheroldpts, othernewpts, nsteps)
        if self.value > other.value:
            self.item.tkraise()
            other.item.tkraise()
        else:
            other.item.tkraise()
            self.item.tkraise()
        try:
            for i in range(len(mytrajectory)):
                mypts = mytrajectory[i]
                otherpts = othertrajectory[i]
                self.item.coords((mypts[:2], mypts[2:]))
                other.item.coords((otherpts[:2], otherpts[2:]))
                self.array.wait(50)
        finally:
            mypts = mytrajectory[-1]
            otherpts = othertrajectory[-1]
            self.item.coords((mypts[:2], mypts[2:]))
            other.item.coords((otherpts[:2], otherpts[2:]))
            self.item.config(fill=myfill)
            other.item.config(fill=otherfill)

def compareto(self, other):
        myfill = self.item['fill']
        otherfill = other.item['fill']
        outcome = cmp(self.value, other.value)
        if outcome < 0:
            myflash = 'white'
            otherflash = 'black'
        elif outcome > 0:
            myflash = 'black'
            otherflash = 'white'
        else:
            myflash = otherflash = 'grey'
        try:
            self.item.config(fill=myflash)
            other.item.config(fill=otherflash)
            self.array.wait(500)
        finally:
            self.item.config(fill=myfill)
            other.item.config(fill=otherfill)
        return outcome

def position(self):
        x1 = (self.index+1)*XGRID - WIDTH//2
        x2 = x1+WIDTH
        y2 = (self.array.maxvalue+1)*YGRID
        y1 = y2 - (self.value)*YGRID
        return x1, y1, x2, y2

def nearestindex(self, x):
        return int(round(float(x)/XGRID)) - 1

# Subroutines that don't need an object

def steps(here, there):
    nsteps = abs(here - there)
    if nsteps <= 3:
        nsteps = nsteps * 3
    elif nsteps <= 5:
        nsteps = nsteps * 2
    elif nsteps > 10:
        nsteps = 10
    return nsteps

def interpolate(oldpts, newpts, n):
    if len(oldpts) != len(newpts):
        raise ValueError, "can't interpolate arrays of different length"
    pts = [0]*len(oldpts)
    res = [tuple(oldpts)]
    for i in range(1, n):
        for k in range(len(pts)):
            pts[k] = oldpts[k] + (newpts[k] - oldpts[k])*i//n
        res.append(tuple(pts))
    res.append(tuple(newpts))
    return res

# Various (un)sorting algorithms

def uniform(array):
    size = array.getsize()
    array.setdata([(size+1)//2] * size)
    array.reset("Uniform data, size %d" % size)

def distinct(array):
    size = array.getsize()
    array.setdata(range(1, size+1))
    array.reset("Distinct data, size %d" % size)

def randomize(array):
    array.reset("Randomizing")
    n = array.getsize()
    for i in range(n):
        j = random.randint(0, n-1)
        array.swap(i, j)
    array.message("Randomized")

def insertionsort(array):
    size = array.getsize()
    array.reset("Insertion sort")
    for i in range(1, size):
        j = i-1
        while j >= 0:
            if array.compare(j, j+1) <= 0:
                break
            array.swap(j, j+1)
            j = j-1
    array.message("Sorted")

def selectionsort(array):
    size = array.getsize()
    array.reset("Selection sort")
    try:
        for i in range(size):
            array.show_partition(i, size)
            for j in range(i+1, size):
                if array.compare(i, j) > 0:
                    array.swap(i, j)
        array.message("Sorted")
    finally:
        array.hide_partition()

def bubblesort(array):
    size = array.getsize()
    array.reset("Bubble sort")
    for i in range(size):
        for j in range(1, size):
            if array.compare(j-1, j) > 0:
                array.swap(j-1, j)
    array.message("Sorted")

def quicksort(array):
    size = array.getsize()
    array.reset("Quicksort")
    try:
        stack = [(0, size)]
        while stack:
            first, last = stack[-1]
            del stack[-1]
            array.show_partition(first, last)
            if last-first < 5:
                array.message("Insertion sort")
                for i in range(first+1, last):
                    j = i-1
                    while j >= first:
                        if array.compare(j, j+1) <= 0:
                            break
                        array.swap(j, j+1)
                        j = j-1
                continue
            array.message("Choosing pivot")
            j, i, k = first, (first+last)//2, last-1
            if array.compare(k, i) < 0:
                array.swap(k, i)
            if array.compare(k, j) < 0:
                array.swap(k, j)
            if array.compare(j, i) < 0:
                array.swap(j, i)
            pivot = j
            array.show_pivot(pivot)
            array.message("Pivot at left of partition")
            array.wait(1000)
            left = first
            right = last
            while 1:
                array.message("Sweep right pointer")
                right = right-1
                array.show_right(right)
                while right > first and array.compare(right, pivot) >= 0:
                    right = right-1
                    array.show_right(right)
                array.message("Sweep left pointer")
                left = left+1
                array.show_left(left)
                while left < last and array.compare(left, pivot) <= 0:
                    left = left+1
                    array.show_left(left)
                if left > right:
                    array.message("End of partition")
                    break
                array.message("Swap items")
                array.swap(left, right)
            array.message("Swap pivot back")
            array.swap(pivot, right)
            n1 = right-first
            n2 = last-left
            if n1 > 1: stack.append((first, right))
            if n2 > 1: stack.append((left, last))
        array.message("Sorted")
    finally:
        array.hide_partition()

def demosort(array):
    while 1:
        for alg in [quicksort, insertionsort, selectionsort, bubblesort]:
            randomize(array)
            alg(array)

# Sort demo class -- usable as a Grail applet

class SortDemo:

def __init__(self, master, size=15):
        self.master = master
        self.size = size
        self.busy = 0
        self.array = Array(self.master)

self.botframe = Frame(master)
        self.botframe.pack(side=BOTTOM)
        self.botleftframe = Frame(self.botframe)
        self.botleftframe.pack(side=LEFT, fill=Y)
        self.botrightframe = Frame(self.botframe)
        self.botrightframe.pack(side=RIGHT, fill=Y)

self.b_qsort = Button(self.botleftframe,
                              text="Quicksort", command=self.c_qsort)
        self.b_qsort.pack(fill=X)
        self.b_isort = Button(self.botleftframe,
                              text="Insertion sort", command=self.c_isort)
        self.b_isort.pack(fill=X)
        self.b_ssort = Button(self.botleftframe,
                              text="Selection sort", command=self.c_ssort)
        self.b_ssort.pack(fill=X)
        self.b_bsort = Button(self.botleftframe,
                              text="Bubble sort", command=self.c_bsort)
        self.b_bsort.pack(fill=X)

# Terrible hack to overcome limitation of OptionMenu...
        class MyIntVar(IntVar):
            def __init__(self, master, demo):
                self.demo = demo
                IntVar.__init__(self, master)
            def set(self, value):
                IntVar.set(self, value)
                if str(value) != '0':
                    self.demo.resize(value)

self.v_size = MyIntVar(self.master, self)
        self.v_size.set(size)
        sizes = [1, 2, 3, 4] + range(5, 55, 5)
        if self.size not in sizes:
            sizes.append(self.size)
            sizes.sort()
        self.m_size = apply(OptionMenu,
                            (self.botleftframe, self.v_size) + tuple(sizes))
        self.m_size.pack(fill=X)

self.v_speed = StringVar(self.master)
        self.v_speed.set("normal")
        self.m_speed = OptionMenu(self.botleftframe, self.v_speed,
                                  "single-step", "normal", "fast", "fastest")
        self.m_speed.pack(fill=X)

self.b_step = Button(self.botleftframe,
                             text="Step", command=self.c_step)
        self.b_step.pack(fill=X)

self.b_randomize = Button(self.botrightframe,
                                  text="Randomize", command=self.c_randomize)
        self.b_randomize.pack(fill=X)
        self.b_uniform = Button(self.botrightframe,
                                  text="Uniform", command=self.c_uniform)
        self.b_uniform.pack(fill=X)
        self.b_distinct = Button(self.botrightframe,
                                  text="Distinct", command=self.c_distinct)
        self.b_distinct.pack(fill=X)
        self.b_demo = Button(self.botrightframe,
                             text="Demo", command=self.c_demo)
        self.b_demo.pack(fill=X)
        self.b_cancel = Button(self.botrightframe,
                               text="Cancel", command=self.c_cancel)
        self.b_cancel.pack(fill=X)
        self.b_cancel.config(state=DISABLED)
        self.b_quit = Button(self.botrightframe,
                             text="Quit", command=self.c_quit)
        self.b_quit.pack(fill=X)

def resize(self, newsize):
        if self.busy:
            self.master.bell()
            return
        self.size = newsize
        self.array.setdata(range(1, self.size+1))

def c_qsort(self):
        self.run(quicksort)

def c_isort(self):
        self.run(insertionsort)

def c_ssort(self):
        self.run(selectionsort)

def c_bsort(self):
        self.run(bubblesort)

def c_demo(self):
        self.run(demosort)

def c_randomize(self):
        self.run(randomize)

def c_uniform(self):
        self.run(uniform)

def c_distinct(self):
        self.run(distinct)

def run(self, func):
        if self.busy:
            self.master.bell()
            return
        self.busy = 1
        self.array.setspeed(self.v_speed.get())
        self.b_cancel.config(state=NORMAL)
        try:
            func(self.array)
        except Array.Cancelled:
            pass
        self.b_cancel.config(state=DISABLED)
        self.busy = 0

def c_cancel(self):
        if not self.busy:
            self.master.bell()
            return
        self.array.cancel()

def c_step(self):
        if not self.busy:
            self.master.bell()
            return
        self.v_speed.set("single-step")
        self.array.setspeed("single-step")
        self.array.step()

def c_quit(self):
        if self.busy:
            self.array.cancel()
        self.master.after_idle(self.master.quit)

# Main program -- for stand-alone operation outside Grail

def main():
    root = Tk()
    demo = SortDemo(root)
    root.protocol('WM_DELETE_WINDOW', demo.c_quit)
    root.mainloop()

if __name__ == '__main__':
    main()