1ae29591ef
Such that our Python 2 is closer to Python 3. Part of https://github.com/behdad/fonttools/issues/77
266 lines
6.3 KiB
Python
266 lines
6.3 KiB
Python
# Copyright 2013 Google, Inc. All Rights Reserved.
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#
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# Google Author(s): Behdad Esfahbod
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"""GUI font inspector.
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"""
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from __future__ import print_function, division, absolute_import
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from fontTools.misc.py23 import *
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from fontTools import misc, ttLib, cffLib
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import pygtk
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pygtk.require('2.0')
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import gtk
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import sys
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class Row(object):
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def __init__(self, parent, index, key, value, font):
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self._parent = parent
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self._index = index
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self._key = key
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self._value = value
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self._font = font
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if isinstance(value, ttLib.TTFont):
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self._add_font(value)
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return
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if not isinstance(value, basestring):
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# Try sequences
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is_sequence = True
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try:
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len(value)
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iter(value)
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# It's hard to differentiate list-type sequences
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# from dict-type ones. Try fetching item 0.
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value[0]
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except (TypeError, AttributeError, KeyError, IndexError):
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is_sequence = False
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if is_sequence:
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self._add_list(key, value)
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return
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if hasattr(value, '__dict__'):
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self._add_object(key, value)
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return
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if hasattr(value, 'items'):
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self._add_dict(key, value)
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return
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if isinstance(value, basestring):
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self._value_str = '"'+value+'"'
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self._children = []
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return
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# Everything else
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self._children = []
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def _filter_items(self):
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items = []
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for k,v in self._items:
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if isinstance(v, ttLib.TTFont):
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continue
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if k in ['reader', 'file', 'tableTag', 'compileStatus', 'recurse']:
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continue
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if isinstance(k, basestring) and k[0] == '_':
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continue
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items.append((k,v))
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self._items = items
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def _add_font(self, font):
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self._items = [(tag,font[tag]) for tag in font.keys()]
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def _add_object(self, key, value):
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# Make sure item is decompiled
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try:
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value["asdf"]
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except (AttributeError, KeyError, TypeError, ttLib.TTLibError):
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pass
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if isinstance(value, ttLib.getTableModule('glyf').Glyph):
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# Glyph type needs explicit expanding to be useful
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value.expand(self._font['glyf'])
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if isinstance(value, misc.psCharStrings.T2CharString):
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try:
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value.decompile()
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except TypeError: # Subroutines can't be decompiled
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pass
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if isinstance(value, cffLib.BaseDict):
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for k in value.rawDict.keys():
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getattr(value, k)
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if isinstance(value, cffLib.Index):
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# Load all items
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for i in range(len(value)):
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value[i]
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# Discard offsets as should not be needed anymore
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if hasattr(value, 'offsets'):
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del value.offsets
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self._value_str = value.__class__.__name__
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if isinstance(value, ttLib.tables.DefaultTable.DefaultTable):
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self._value_str += ' (%d Bytes)' % self._font.reader.tables[key].length
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self._items = sorted(value.__dict__.items())
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self._filter_items()
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def _add_dict(self, key, value):
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self._value_str = '%s of %d items' % (value.__class__.__name__, len(value))
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self._items = sorted(value.items())
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def _add_list(self, key, value):
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if len(value) and len(value) <= 32:
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self._value_str = str(value)
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else:
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self._value_str = '%s of %d items' % (value.__class__.__name__,
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len(value))
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self._items = list(enumerate(value))
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def __len__(self):
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if hasattr(self, '_children'):
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return len(self._children)
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if hasattr(self, '_items'):
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return len(self._items)
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assert False
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def _ensure_children(self):
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if hasattr(self, '_children'):
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return
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children = []
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for i,(k,v) in enumerate(self._items):
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children.append(Row(self, i, k, v, self._font))
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self._children = children
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del self._items
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def __getitem__(self, n):
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if n >= len(self):
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return None
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if not hasattr(self, '_children'):
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self._children = [None] * len(self)
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c = self._children[n]
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if c is None:
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k,v = self._items[n]
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c = self._children[n] = Row(self, n, k, v, self._font)
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self._items[n] = None
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return c
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def get_parent(self):
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return self._parent
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def get_index(self):
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return self._index
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def get_key(self):
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return self._key
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def get_value(self):
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return self._value
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def get_value_str(self):
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if hasattr(self,'_value_str'):
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return self._value_str
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return str(self._value)
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class FontTreeModel(gtk.GenericTreeModel):
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__gtype_name__ = 'FontTreeModel'
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def __init__(self, font):
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super(FontTreeModel, self).__init__()
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self._columns = (str, str)
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self.font = font
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self._root = Row(None, 0, "font", font, font)
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def on_get_flags(self):
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return 0
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def on_get_n_columns(self):
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return len(self._columns)
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def on_get_column_type(self, index):
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return self._columns[index]
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def on_get_iter(self, path):
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rowref = self._root
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while path:
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rowref = rowref[path[0]]
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path = path[1:]
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return rowref
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def on_get_path(self, rowref):
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path = []
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while rowref != self._root:
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path.append(rowref.get_index())
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rowref = rowref.get_parent()
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path.reverse()
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return tuple(path)
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def on_get_value(self, rowref, column):
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if column == 0:
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return rowref.get_key()
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else:
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return rowref.get_value_str()
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def on_iter_next(self, rowref):
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return rowref.get_parent()[rowref.get_index() + 1]
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def on_iter_children(self, rowref):
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return rowref[0]
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def on_iter_has_child(self, rowref):
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return bool(len(rowref))
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def on_iter_n_children(self, rowref):
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return len(rowref)
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def on_iter_nth_child(self, rowref, n):
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if not rowref: rowref = self._root
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return rowref[n]
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def on_iter_parent(self, rowref):
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return rowref.get_parent()
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class Inspect(object):
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def _delete_event(self, widget, event, data=None):
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gtk.main_quit()
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return False
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def __init__(self, fontfile):
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self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
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self.window.set_title("%s - pyftinspect" % fontfile)
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self.window.connect("delete_event", self._delete_event)
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self.window.set_size_request(400, 600)
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self.scrolled_window = gtk.ScrolledWindow()
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self.window.add(self.scrolled_window)
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self.font = ttLib.TTFont(fontfile, lazy=True)
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self.treemodel = FontTreeModel(self.font)
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self.treeview = gtk.TreeView(self.treemodel)
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#self.treeview.set_reorderable(True)
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for i in range(2):
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col_name = ('Key', 'Value')[i]
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col = gtk.TreeViewColumn(col_name)
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col.set_sort_column_id(-1)
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self.treeview.append_column(col)
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cell = gtk.CellRendererText()
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col.pack_start(cell, True)
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col.add_attribute(cell, 'text', i)
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self.treeview.set_search_column(1)
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self.scrolled_window.add(self.treeview)
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self.window.show_all()
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def main(args):
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if len(args) < 1:
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print("usage: pyftinspect font...", file=sys.stderr)
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sys.exit(1)
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for arg in args:
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Inspect(arg)
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gtk.main()
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if __name__ == "__main__":
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main(sys.argv[1:])
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