Merge pyfontview, rename it to pyftfontview

Adds module fontTools.fontView

Lib/fontTools/fontView.py

@@ -0,0 +1,282 @@
+# Copyright 2013 Google, Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0(the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Google Author(s): Behdad Esfahbod
+
+"""GUI Font Viewer.
+"""
+
+import pygtk
+pygtk.require('2.0')
+import gtk
+import sys
+
+import fontTools.ttLib
+import fontTools.cffLib
+
+
+class Row(object):
+	def __init__(self, parent, index, key, value):
+		self._parent = parent
+		self._index = index
+		self._key = key
+		self._value = value
+
+		if isinstance(value, fontTools.ttLib.TTFont):
+			self._add_font(value)
+			return
+
+		if not isinstance(value, basestring):
+			# Try sequences
+			is_sequence = True
+			try:
+				len(value)
+				iter(value)
+				# It's hard to differentiate list-type sequences
+				# from dict-type ones.  Try fetching item 0.
+				value[0]
+			except TypeError:
+				is_sequence = False
+			except AttributeError:
+				is_sequence = False
+			except KeyError:
+				is_sequence = False
+			except IndexError:
+				is_sequence = False
+			if is_sequence:
+				self._add_list(key, value)
+				return
+		if hasattr(value, '__dict__'):
+			self._add_object(key, value)
+			return
+		if hasattr(value, 'items'):
+			self._add_dict(key, value)
+			return
+
+		if isinstance(value, basestring):
+			self._value_str = '"'+value+'"'
+			self._children = []
+			return
+
+		# Everything else
+		self._children = []
+
+	def _filter_items(self):
+		items = []
+		for k,v in self._items:
+			if isinstance(v, fontTools.ttLib.TTFont):
+				continue
+			if k in ['reader', 'file', 'tableTag', 'compileStatus', 'recurse']:
+				continue
+			if isinstance(k, basestring) and k[0] == '_':
+				continue
+			items.append((k,v))
+		self._items = items
+
+	def _add_font(self, font):
+		self._items = [(tag,font[tag]) for tag in font.keys()]
+
+	def _add_object(self, key, value):
+		# Make sure item is decompiled
+		try:
+			getattr(value, "asdf")
+		except AttributeError:
+			pass
+		if isinstance(value, fontTools.ttLib.getTableModule('glyf').Glyph):
+			# Glyph type needs explicit expanding to be useful
+			value.expand(self.font['glyf'])
+		if isinstance(value, fontTools.misc.psCharStrings.T2CharString):
+			try:
+				value.decompile()
+			except TypeError:  # Subroutines can't be decompiled
+				pass
+		if isinstance(value, fontTools.cffLib.BaseDict):
+			for k in value.rawDict.keys():
+				getattr(value, k)
+		if isinstance(value, fontTools.cffLib.Index):
+			# Load all items
+			for i in range(len(value)):
+				value[i]
+			# Discard offsets as should not be needed anymore
+			if hasattr(value, 'offsets'):
+				del value.offsets
+
+		self._value_str = value.__class__.__name__
+		self._items = sorted(value.__dict__.items())
+		self._filter_items()
+
+	def _add_dict(self, key, value):
+		self._value_str = '%s of %d items' % (value.__class__.__name__, len(value))
+		self._items = sorted(value.items())
+
+	def _add_list(self, key, value):
+		if len(value) and len(value) <= 32:
+			self._value_str = str(value)
+		else:
+			self._value_str = '%s of %d items' % (value.__class__.__name__,
+							      len(value))
+		self._items = list(enumerate(value))
+
+	def __len__(self):
+		if hasattr(self, '_children'):
+			return len(self._children)
+		if hasattr(self, '_items'):
+			return len(self._items)
+		assert 0
+
+	def _ensure_children(self):
+		if hasattr(self, '_children'):
+			return
+		children = []
+		for i,(k,v) in enumerate(self._items):
+			children.append(Row(self, i, k, v))
+		self._children = children
+		del self._items
+
+	def __getitem__(self, n):
+		if n >= len(self):
+			return None
+		if not hasattr(self, '_children'):
+			self._children = [None] * len(self)
+		c = self._children[n]
+		if c is None:
+			k,v = self._items[n]
+			c = self._children[n] = Row(self, n, k, v)
+			self._items[n] = None
+		return c
+
+	def get_parent(self):
+		return self._parent
+
+	def get_index(self):
+		return self._index
+
+	def get_key(self):
+		return self._key
+
+	def get_value(self):
+		return self._value
+
+	def get_value_str(self):
+		if hasattr(self,'_value_str'):
+			return self._value_str
+		return str(self._value)
+
+class FontTreeModel(gtk.GenericTreeModel):
+
+	__gtype_name__ = 'FontTreeModel'
+
+	def __init__(self, font):
+		super(FontTreeModel, self).__init__()
+		self._columns = (str, str)
+		self.font = font
+		self._root = Row(None, 0, "font", font)
+
+	def on_get_flags(self):
+		return 0
+
+	def on_get_n_columns(self):
+		return len(self._columns)
+
+	def on_get_column_type(self, index):
+		return self._columns[index]
+
+	def on_get_iter(self, path):
+		rowref = self._root
+		while path:
+			rowref = rowref[path[0]]
+			path = path[1:]
+		return rowref
+
+	def on_get_path(self, rowref):
+		path = []
+		while rowref != self._root:
+			path.append(rowref.get_index())
+			rowref = rowref.get_parent()
+		path.reverse()
+		return tuple(path)
+
+	def on_get_value(self, rowref, column):
+		if column == 0:
+			return rowref.get_key()
+		else:
+			return rowref.get_value_str()
+
+	def on_iter_next(self, rowref):
+		return rowref.get_parent()[rowref.get_index() + 1]
+
+	def on_iter_children(self, rowref):
+		return rowref[0]
+
+	def on_iter_has_child(self, rowref):
+		return bool(len(rowref))
+
+	def on_iter_n_children(self, rowref):
+		return len(rowref)
+
+	def on_iter_nth_child(self, rowref, n):
+		if not rowref: rowref = self._root
+		return rowref[n]
+
+	def on_iter_parent(self, rowref):
+		return rowref.get_parent()
+
+class FontView:
+
+	def _delete_event(self, widget, event, data=None):
+		gtk.main_quit()
+		return False
+
+	def __init__(self, fontfile):
+
+		self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
+		self.window.set_title("%s - FontView" % fontfile)
+		self.window.connect("delete_event", self._delete_event)
+		self.window.set_size_request(400, 600)
+
+		self.scrolled_window = gtk.ScrolledWindow()
+		self.window.add(self.scrolled_window)
+
+		self.font = fontTools.ttLib.TTFont(fontfile)
+		self.treemodel = FontTreeModel(self.font)
+		self.treeview = gtk.TreeView(self.treemodel)
+		#self.treeview.set_reorderable(True)
+
+		for i in range(2):
+
+			col = gtk.TreeViewColumn('Column %d' % i)
+
+			self.treeview.append_column(col)
+
+			cell = gtk.CellRendererText()
+			col.pack_start(cell, True)
+
+			col.add_attribute(cell, 'text', i)
+
+			col.set_sort_column_id(i)
+
+		self.treeview.set_search_column(1)
+		self.scrolled_window.add(self.treeview)
+		self.window.show_all()
+
+def main(args):
+	if len(args) < 1:
+		print >>sys.stderr, "usage: pyftfontview font..."
+		sys.exit(1)
+	for arg in args:
+		viewer = FontView(arg)
+	gtk.main()
+
+if __name__ == "__main__":
+	main(sys.argv[1:])

Tools/pyftfontview

@@ -0,0 +1,6 @@
+#! /usr/bin/env python
+
+import sys
+from fontTools import fontView
+
+fontView.main(sys.argv[1:])