mirror of
https://github.com/EDCD/EDMarketConnector.git
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104 lines
4.6 KiB
Python
104 lines
4.6 KiB
Python
from sys import platform
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import webbrowser
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import Tkinter as tk
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import ttk
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import tkFont
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# A clickable ttk Label
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#
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# In addition to standard ttk.Label arguments, takes the following arguments:
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# url: The URL as a string that the user will be sent to on clicking on non-empty label text. If url is a function it will be called on click with the current label text and should return the URL as a string.
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# underline: If True/False the text is always/never underlined. If None (the default) the text is underlined only on hover.
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# popup_copy: Whether right-click on non-empty label text pops up a context menu with a 'Copy' option. Defaults to no context menu. If popup_copy is a function it will be called with the current label text and should a boolean.
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#
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class HyperlinkLabel(platform == 'darwin' and tk.Label or ttk.Label, object):
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def __init__(self, master=None, **kw):
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self.url = kw.pop('url')
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self.popup_copy = kw.pop('popup_copy', False)
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self.underline = kw.pop('underline', None) # override ttk.Label's underline
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self.foreground = kw.get('foreground') or 'blue'
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self.disabledforeground = kw.pop('disabledforeground', ttk.Style().lookup('TLabel', 'foreground', ('disabled',)))
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if platform == 'darwin':
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# Use tk.Label 'cos can't set ttk.Label background - http://www.tkdocs.com/tutorial/styles.html#whydifficult
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kw['background'] = kw.pop('background', 'systemDialogBackgroundActive')
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kw['anchor'] = kw.pop('anchor', tk.W) # like ttk.Label
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tk.Label.__init__(self, master, **kw)
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else:
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ttk.Label.__init__(self, master, **kw)
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if self.url:
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self.bind('<Button-1>', self._click)
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if self.popup_copy:
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self.menu = tk.Menu(None, tearoff=tk.FALSE)
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self.menu.add_command(label=_('Copy'), command = self.copy) # As in Copy and Paste
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self.bind(platform == 'darwin' and '<Button-2>' or '<Button-3>', self._contextmenu)
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if self.underline is not False:
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self.font_n = kw.get('font', ttk.Style().lookup('TLabel', 'font'))
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self.font_u = tkFont.Font(font = self.font_n)
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self.font_u.configure(underline = True)
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if self.underline is True:
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self.configure(font = self.font_u)
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else:
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self.bind('<Enter>', self._enter)
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self.bind('<Leave>', self._leave)
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self.configure(state = kw.get('state'), text = kw.get('text')) # set up initial appearance
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# Change cursor and appearance depending on state and text
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def configure(self, cnf=None, **kw):
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if kw.get('state') == tk.DISABLED:
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if 'foreground' not in kw:
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kw['foreground'] = self.disabledforeground
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if self.underline is not False and 'font' not in kw:
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kw['font'] = self.font_n
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if 'cursor' not in kw:
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kw['cursor'] = 'arrow' # System default
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elif 'state' in kw:
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if 'foreground' not in kw:
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kw['foreground'] = self.foreground
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if self.underline is True and 'font' not in kw:
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kw['font'] = self.font_u
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# Hover cursor only if widget is enabled and text is non-empty
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if ('text' in kw or 'state' in kw) and 'cursor' not in kw:
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if self.url and (kw['text'] if 'text' in kw else self['text']) and (kw['state'] if 'state' in kw else str(self['state']))!=tk.DISABLED:
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kw['cursor'] = platform=='darwin' and 'pointinghand' or 'hand2'
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else:
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kw['cursor'] = 'arrow' # System default
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super(HyperlinkLabel, self).configure(cnf, **kw)
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def __setitem__(self, key, value):
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self.configure(None, **{key: value})
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def _enter(self, event):
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if str(self['state']) != tk.DISABLED:
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self.configure(font = self.font_u)
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def _leave(self, event):
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if self.underline is None:
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self.configure(font = self.font_n)
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def _click(self, event):
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if self['text'] and str(self['state']) != tk.DISABLED:
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url = self.url(self['text']) if callable(self.url) else self.url
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if url:
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self._leave(event) # Remove underline before we change window to browser
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webbrowser.open(url)
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def _contextmenu(self, event):
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if self['text'] and (self.popup_copy(self['text']) if callable(self.popup_copy) else self.popup_copy):
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self.menu.post(platform == 'darwin' and event.x_root + 1 or event.x_root, event.y_root)
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def copy(self):
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self.clipboard_clear()
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self.clipboard_append(self['text'])
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