opencv/samples/python2/demo.py

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Python
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2011-08-20 21:54:03 +02:00
import Tkinter as tk
from ScrolledText import ScrolledText
from glob import glob
from common import splitfn
#from IPython.Shell import IPShellEmbed
#ipshell = IPShellEmbed()
exclude_list = ['demo', 'common']
class LinkManager:
def __init__(self, text, url_callback = None):
self.text = text
self.text.tag_config("link", foreground="blue", underline=1)
self.text.tag_bind("link", "<Enter>", self._enter)
self.text.tag_bind("link", "<Leave>", self._leave)
self.text.tag_bind("link", "<Button-1>", self._click)
self.url_callback = url_callback
self.reset()
def reset(self):
self.links = {}
def add(self, action):
# add an action to the manager. returns tags to use in
# associated text widget
tag = "link-%d" % len(self.links)
self.links[tag] = action
return "link", tag
def _enter(self, event):
self.text.config(cursor="hand2")
def _leave(self, event):
self.text.config(cursor="")
def _click(self, event):
for tag in self.text.tag_names(tk.CURRENT):
if tag.startswith("link-"):
proc = self.links[tag]
if callable(proc):
proc()
else:
if self.url_callback:
self.url_callback(proc)
class App:
def __init__(self):
root = tk.Tk()
root.title('OpenCV Demo')
self.win = win = tk.PanedWindow(root, orient=tk.HORIZONTAL, sashrelief=tk.RAISED, sashwidth=4)
self.win.pack(fill=tk.BOTH, expand=1)
left = tk.Frame(win)
right = tk.Frame(win)
win.add(left)
win.add(right)
scrollbar = tk.Scrollbar(left, orient=tk.VERTICAL)
self.demos_lb = demos_lb = tk.Listbox(left, yscrollcommand=scrollbar.set)
scrollbar.config(command=demos_lb.yview)
scrollbar.pack(side=tk.RIGHT, fill=tk.Y)
demos_lb.pack(side=tk.LEFT, fill=tk.BOTH, expand=1)
self.samples = {}
for fn in glob('*.py'):
name = splitfn(fn)[1]
if fn[0] != '_' and name not in exclude_list:
demos_lb.insert(tk.END, name)
self.samples[name] = fn
demos_lb.bind('<<ListboxSelect>>', self.on_demo_select)
self.text = text = ScrolledText(right, font=('arial', 12, 'normal'), width = 30, wrap='word')
text.pack(fill='both', expand=1)
self.linker = linker = LinkManager(text, self.on_link)
self.text.tag_config("header1", font=('arial', 14, 'bold'))
self.text.tag_config("header2", font=('arial', 12, 'bold'))
text.config(state='disabled')
def on_link(self, url):
print url
def on_demo_select(self, evt):
name = self.demos_lb.get( self.demos_lb.curselection()[0] )
fn = self.samples[name]
loc = {}
execfile(fn, loc)
descr = loc.get('__doc__', 'no-description')
self.linker.reset()
self.text.config(state='normal')
self.text.delete(1.0, tk.END)
self.format_text(descr)
self.text.config(state='disabled')
def format_text(self, s):
text = self.text
lines = s.splitlines()
for i, s in enumerate(lines):
s = s.rstrip()
if i == 0 and not s:
continue
sn = len(s)
if s and s == '='*sn:
text.tag_add('header1', 'end-2l', 'end-1l')
elif s and s == '-'*sn:
text.tag_add('header2', 'end-2l', 'end-1l')
else:
text.insert('end', s+'\n')
def format_line(self, s):
text = self.text
pos, n = 0, len(s)
while pos < n:
next = s.find('http://', pos)
if next < 0:
next = n
test.insert(tk.END, s[pos:next])
pos = next
#text.insert(tk.END, "click here!", linker.add('http://asdfsdaf'))
def run(self):
tk.mainloop()
if __name__ == '__main__':
App().run()