diff options
Diffstat (limited to 'Lib/lib-tk/tkFont.py')
| -rw-r--r-- | Lib/lib-tk/tkFont.py | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/Lib/lib-tk/tkFont.py b/Lib/lib-tk/tkFont.py deleted file mode 100644 index 15dea2e..0000000 --- a/Lib/lib-tk/tkFont.py +++ /dev/null @@ -1,216 +0,0 @@ -# Tkinter font wrapper -# -# written by Fredrik Lundh, February 1998 -# -# FIXME: should add 'displayof' option where relevant (actual, families, -# measure, and metrics) -# - -__version__ = "0.9" - -import Tkinter - -# weight/slant -NORMAL = "normal" -ROMAN = "roman" -BOLD = "bold" -ITALIC = "italic" - -def nametofont(name): - """Given the name of a tk named font, returns a Font representation. - """ - return Font(name=name, exists=True) - -class Font: - - """Represents a named font. - - Constructor options are: - - font -- font specifier (name, system font, or (family, size, style)-tuple) - name -- name to use for this font configuration (defaults to a unique name) - exists -- does a named font by this name already exist? - Creates a new named font if False, points to the existing font if True. - Raises _tkinter.TclError if the assertion is false. - - the following are ignored if font is specified: - - family -- font 'family', e.g. Courier, Times, Helvetica - size -- font size in points - weight -- font thickness: NORMAL, BOLD - slant -- font slant: ROMAN, ITALIC - underline -- font underlining: false (0), true (1) - overstrike -- font strikeout: false (0), true (1) - - """ - - def _set(self, kw): - options = [] - for k, v in kw.items(): - options.append("-"+k) - options.append(str(v)) - return tuple(options) - - def _get(self, args): - options = [] - for k in args: - options.append("-"+k) - return tuple(options) - - def _mkdict(self, args): - options = {} - for i in range(0, len(args), 2): - options[args[i][1:]] = args[i+1] - return options - - def __init__(self, root=None, font=None, name=None, exists=False, **options): - if not root: - root = Tkinter._default_root - if font: - # get actual settings corresponding to the given font - font = root.tk.splitlist(root.tk.call("font", "actual", font)) - else: - font = self._set(options) - if not name: - name = "font" + str(id(self)) - self.name = name - - if exists: - self.delete_font = False - # confirm font exists - if self.name not in root.tk.call("font", "names"): - raise Tkinter._tkinter.TclError, "named font %s does not already exist" % (self.name,) - # if font config info supplied, apply it - if font: - root.tk.call("font", "configure", self.name, *font) - else: - # create new font (raises TclError if the font exists) - root.tk.call("font", "create", self.name, *font) - self.delete_font = True - # backlinks! - self._root = root - self._split = root.tk.splitlist - self._call = root.tk.call - - def __str__(self): - return self.name - - def __eq__(self, other): - return self.name == other.name and isinstance(other, Font) - - def __getitem__(self, key): - return self.cget(key) - - def __setitem__(self, key, value): - self.configure(**{key: value}) - - def __del__(self): - try: - if self.delete_font: - self._call("font", "delete", self.name) - except (KeyboardInterrupt, SystemExit): - raise - except Exception: - pass - - def copy(self): - "Return a distinct copy of the current font" - return Font(self._root, **self.actual()) - - def actual(self, option=None): - "Return actual font attributes" - if option: - return self._call("font", "actual", self.name, "-"+option) - else: - return self._mkdict( - self._split(self._call("font", "actual", self.name)) - ) - - def cget(self, option): - "Get font attribute" - return self._call("font", "config", self.name, "-"+option) - - def config(self, **options): - "Modify font attributes" - if options: - self._call("font", "config", self.name, - *self._set(options)) - else: - return self._mkdict( - self._split(self._call("font", "config", self.name)) - ) - - configure = config - - def measure(self, text): - "Return text width" - return int(self._call("font", "measure", self.name, text)) - - def metrics(self, *options): - """Return font metrics. - - For best performance, create a dummy widget - using this font before calling this method.""" - - if options: - return int( - self._call("font", "metrics", self.name, self._get(options)) - ) - else: - res = self._split(self._call("font", "metrics", self.name)) - options = {} - for i in range(0, len(res), 2): - options[res[i][1:]] = int(res[i+1]) - return options - -def families(root=None): - "Get font families (as a tuple)" - if not root: - root = Tkinter._default_root - return root.tk.splitlist(root.tk.call("font", "families")) - -def names(root=None): - "Get names of defined fonts (as a tuple)" - if not root: - root = Tkinter._default_root - return root.tk.splitlist(root.tk.call("font", "names")) - -# -------------------------------------------------------------------- -# test stuff - -if __name__ == "__main__": - - root = Tkinter.Tk() - - # create a font - f = Font(family="times", size=30, weight=NORMAL) - - print f.actual() - print f.actual("family") - print f.actual("weight") - - print f.config() - print f.cget("family") - print f.cget("weight") - - print names() - - print f.measure("hello"), f.metrics("linespace") - - print f.metrics() - - f = Font(font=("Courier", 20, "bold")) - print f.measure("hello"), f.metrics("linespace") - - w = Tkinter.Label(root, text="Hello, world", font=f) - w.pack() - - w = Tkinter.Button(root, text="Quit!", command=root.destroy) - w.pack() - - fb = Font(font=w["font"]).copy() - fb.config(weight=BOLD) - - w.config(font=fb) - - Tkinter.mainloop() |