Tag editing widget for tkinter. It's similar to jQuery tag it: http://aehlke.github.io/tag-it/
Python, 152 lines
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#
# Uncomment the next line to see my email
# print("Author's email: %s"%"61706c69636163696f6e616d656469646140676d61696c2e636f6d".decode("hex"))
try:
from Tkinter import Text, Frame, Label, PhotoImage, Button
from ttk import Scrollbar
from Tkconstants import *
except ImportError:
from tkinter import Text, Frame, Label, PhotoImage, Button
from tkinter.ttk import Scrollbar
from tkinter.constants import *
class Tag(Frame):
BACKGROUND = "#dddddd"
PADDING = (5,7,5,7)
LABEL_AND_BUTTON_SPACING = 2
FOREGROUND_LABEL = "#0073ea"
def __init__(self, master, text):
self._text = text
Frame.__init__(self, master, background=self.BACKGROUND, highlightbackground="red", borderwidth=1, relief=SOLID)
Label(self, text=text, background=self.BACKGROUND, foreground=self.FOREGROUND_LABEL).pack(side=LEFT, pady=(self.PADDING[1], self.PADDING[3]), padx=(self.PADDING[0],0))
self._close_IMG = PhotoImage(data="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")
Button(self, highlightthickness=0, borderwidth=0, background=self.BACKGROUND, activebackground=self.BACKGROUND, image=self._close_IMG, command=self.destroy).pack(side=LEFT, pady=(self.PADDING[1], self.PADDING[3]), padx=(self.LABEL_AND_BUTTON_SPACING,self.PADDING[2]))
@property
def text(self):
return self._text
class Tag_Entry(Frame):
TAG_ENTRY_PADX = 7
TAG_ENTRY_PADY = 5
SPACING_BETWEEN_TAGS = 3
def __init__(self, master, **kwargs):
Frame.__init__(self, master)
textarea_frame = Frame(self, bd=1, relief=SOLID,**kwargs)
textarea_frame.pack(fill=X)
textarea_frame.pack_propagate(False)
self.textarea = Text(textarea_frame, height=1, pady=self.TAG_ENTRY_PADY, padx=self.TAG_ENTRY_PADX, highlightthickness =0, spacing1=0, spacing2=0, spacing3=0, borderwidth=0, wrap="none")
self.textarea.pack(expand=True, fill=BOTH, padx=2)
scrollbar = Scrollbar(self, orient=HORIZONTAL, command=self.textarea.xview)
scrollbar.pack(fill=X)
self.textarea.configure(xscrollcommand=scrollbar.set)
self.textarea.bind("<KeyPress>",self._on_keypress)
tag = Tag(self.textarea, "")
self.textarea.window_create("1.0", window=tag)
self.update_idletasks()
tag_reqheight = tag.winfo_reqheight()
textarea_frame.configure(height=tag_reqheight + 2*self.TAG_ENTRY_PADY+2*self.textarea["borderwidth"])
# I add a hidden frame because I want the cursor centered including when there is no tag
self.textarea.window_create("1.0", window=Frame(self.textarea, height=tag_reqheight, width=0, borderwidth=0))
tag.destroy()
def add_tag(self, text):
tag = Tag(self.textarea, text)
self.textarea.window_create("1.%s"% len(self.textarea.window_names()), window=tag, padx=self.SPACING_BETWEEN_TAGS)
def _index_of_first_char(self):
return self.textarea.index("end-%sc"%len(self.textarea.get("1.0", END)))
def _on_keypress(self, event):
if event.keysym == 'BackSpace':
if self.textarea.index(INSERT) == self._index_of_first_char():
children = self.textarea.winfo_children()
child = children[-1]
if isinstance(child, Tag):
child.destroy()
else:
self.textarea.delete("%s-1c" % INSERT)
elif event.keysym == 'Delete':
self.textarea.delete("%s" % INSERT)
elif event.keysym == 'Left':
if self.textarea.index(INSERT) != self._index_of_first_char():
self.textarea.mark_set(INSERT, "%s-1c"%insertion_index)
elif event.keysym == 'Right':
insertion_index = self.textarea.index(INSERT)
self.textarea.mark_set(INSERT, "%s+1c"%insertion_index)
elif event.keysym == 'Home':
self.textarea.mark_set(INSERT, self._index_of_first_char())
elif event.keysym == 'End':
self.textarea.mark_set(INSERT, END)
# We check whether it is a punctuation or normal key
elif len(event.char) == 1:
if event.keysym == 'Return':
# In this situation ord(event.char)=13, which is the CARRIAGE RETURN character
# We want instead the new line character with ASCII code 10
text = self.textarea.get("1.0", END)
self.textarea.delete("end-%sc"%len(text), END)
text = text.strip()
if text:
self.add_tag(text)
self.update_idletasks()
self.textarea.see(END)
else:
self.textarea.insert(INSERT, event.char)
self.textarea.see(END)
return "break"
@property
def list_of_tags(self):
list_of_tags = []
for window_name in self.textarea.window_names():
widget = self.nametowidget(window_name)
if isinstance(widget, Tag):
list_of_tags.append(widget.text)
return list_of_tags
if __name__ == "__main__":
try:
from Tkinter import Tk
except ImportError:
from tkinter import Tk
root = Tk()
root.geometry("300x300")
tag_entry = Tag_Entry(root)
tag_entry.pack(fill=X)
tag_entry.add_tag("hello")
# print all the tags
print(tag_entry.list_of_tags)
root.mainloop()
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