I'm trying to create a simple tabbed editor and merged two examples
found on the web. One of those is the one with the closing images on the
tabs. In the proces of understanding I somehowe lost the images on the
tabs but not the fuctionality of clicking on the right position of the tabs.
What is going wrong?
TIA, Ingo
import os
from tkinter import *
from tkinter import ttk
class OPMLnotebook(Frame):
def __init__(self):
Frame.__init__(self)
self.master.title('OPML Notebook')
self._create_panel()
def _tabbtn_press(self, event):
x, y, widget = event.x, event.y, event.widget
elem = widget.identify(x, y)
index = widget.index("@%d,%d" % (x, y))
if "close" in elem:
widget.state(['pressed'])
widget.pressed_index = index
def _tabbtn_release(self, event):
x, y, widget = event.x, event.y, event.widget
if not widget.instate(['pressed']):
return
elem = widget.identify(x, y)
index = widget.index("@%d,%d" % (x, y))
if "close" in elem and widget.pressed_index == index:
widget.forget(index)
widget.event_generate("<<NotebookClosedTab>>")
widget.state(["!pressed"])
widget.pressed_index = None
def _create_panel(self):
imgdir = os.path.join(os.path.dirname(__file__), 'img')
i1 = PhotoImage("img_close", file=os.path.join(imgdir,
'close.gif'))
i2 = PhotoImage("img_closeactive", file=os.path.join(imgdir,
'close_active.gif'))
i3 = PhotoImage("img_closepressed", file=os.path.join(imgdir,
'close_pressed.gif'))
style = ttk.Style()
style.element_create("close", "image", "img_close",
("active", "pressed", "!disabled", "img_closepressed"),
("active", "!disabled", "img_closeactive"), border=10,
sticky='')
style.layout("ButtonNotebook", [("ButtonNotebook.client",
{"sticky": "nswe"})])
style.layout("ButtonNotebook.Tab", [
("ButtonNotebook.tab", {"sticky": "nswe", "children":
[("ButtonNotebook.padding", {"side": "top", "sticky":
"nswe",
"children":
[("ButtonNotebook.label", {"side": "left",
"sticky": ''}),
("ButtonNotebook.close", {"side": "left", "sticky":
''})]
})]
})]
)
self.bind_class("TNotebook", "<ButtonPress-1>",
self._tabbtn_press, True)
self.bind_class("TNotebook", "<ButtonRelease-1>",
self._tabbtn_release)
nb = ttk.Notebook(width=400, height=400, style="ButtonNotebook")
nb.pressed_index = None
nb.enable_traversal()
nb.pack(fill='both', expand=1)
self._create_text_tab(nb)
self._create_text_tab(nb)
def _create_text_tab(self, nb):
frame = Frame(nb)
txt = Text(frame, wrap=WORD, width=40, height=10)
vscroll = Scrollbar(frame, orient=VERTICAL, command=txt.yview)
txt['yscroll'] = vscroll.set
vscroll.pack(side=RIGHT, fill=Y)
txt.pack(fill='both', expand=Y)
nb.add(frame, text='Text Editor', underline=0)
if __name__ == '__main__':
OPMLnotebook().mainloop()
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