Rewrite using custom treemodel
Fixes performance issue.
This commit is contained in:
Behdad Esfahbod
parent
9c64ded292
commit
1d6e7264fc
288
pyfontview.py
288
pyfontview.py
@ -3,6 +3,7 @@
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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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import fontTools.ttx
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import fontTools.ttLib
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@ -13,50 +14,20 @@ class FontTreeStoreBuilder:
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def __init__(self, treestore):
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self.ts = treestore
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def add_object(self, parent, key, value):
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# Make sure item is decompiled
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try:
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getattr(value, "asdf")
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except AttributeError:
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pass
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if isinstance(value, fontTools.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, fontTools.cffLib.Index):
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# Load all items
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for i in range(len(value)):
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print 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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item = self.ts.append(parent, [key, '%s' % value.__class__.__name__])
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for k,v in sorted(value.__dict__.items()):
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if k[0] == '_':
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continue
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self.add_thing (item, k, v)
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class Row(object):
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def __init__(self, parent, index, key, value):
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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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def add_dict(self, parent, key, value):
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name = '%s of %d items' % (value.__class__.__name__, len(value))
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item = self.ts.append(parent, [key, name])
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for k,v in sorted(value.items()):
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self.add_thing (item, k, v)
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def add_list(self, parent, key, value):
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name = '%s of %d items' % (value.__class__.__name__, len(value))
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if len(value) and len(value) <= 32:
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name = str(value)
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item = self.ts.append(parent, [key, name])
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for k,v in enumerate(value):
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self.add_thing (item, k, v)
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def add_thing(self, parent, key, value):
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if value == self.font:
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return
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if key in ['reader', 'file', 'tableTag', 'compileStatus', 'recurse']:
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if isinstance(value, fontTools.ttx.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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# Sequences
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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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@ -73,76 +44,225 @@ class FontTreeStoreBuilder:
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except IndexError:
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is_sequence = False
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if is_sequence:
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self.add_list(parent, key, value)
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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(parent, key, value)
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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(parent, key, value)
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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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item = self.ts.append(parent, [key, '"'+value+'"'])
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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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item = self.ts.append(parent, [key, value])
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self._children = []
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def add_font(self, font):
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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, fontTools.ttx.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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getattr(value, "asdf")
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except AttributeError:
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pass
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if isinstance(value, fontTools.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, fontTools.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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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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self._filter_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 = enumerate(value)
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self._filter_items()
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def __len__(self):
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self._ensure_children()
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return len(self._children)
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def get_parent(self):
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return self._parent
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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))
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self._children = children
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del self._items
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def get_children(self):
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self._ensure_children()
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return self._children
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def get_children(self):
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self._ensure_children()
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return self._children
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def get_nth_child(self, n):
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self._ensure_children()
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if n < len(self._children):
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return self._children[n]
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else:
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return None
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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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def get_iter(self, path):
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if not path:
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return self
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return self.get_nth_child(path[0]).get_iter(path[1:])
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def iter_next(self):
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if not self._parent:
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return None
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return self._parent.get_nth_child(self._index + 1)
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def get_path(self):
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if not self._parent: return ()
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return self._parent.get_path() + (self._index,)
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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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for tag in font.keys():
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self.add_thing (None, tag, font[tag])
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self.font = None
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self._root = Row(None, 0, "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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return self._root.get_iter(path)
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def on_get_path(self, rowref):
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return rowref.get_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.iter_next()
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def on_iter_children(self, rowref):
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return rowref.get_nth_child(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.get_nth_child(n)
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def on_iter_parent(self, rowref):
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return rowref.get_parent()
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class PyFontView:
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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 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):
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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("PyFontView")
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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.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
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self.window.set_title("%s - PyFontView" % 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.scrolled_window = gtk.ScrolledWindow()
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self.window.add(self.scrolled_window)
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self.treestore = gtk.TreeStore(str, str)
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self.font = fontTools.ttx.TTFont(fontfile)
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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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font = fontTools.ttx.TTFont("abc.woff")
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#font = fontTools.ttx.TTFont("IranNastaliq2.ttf")
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#font = fontTools.ttx.TTFont("KozGoPr6N-Medium.otf")
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#font = fontTools.ttx.TTFont("SmaGoSS07262013-Book.otf")
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builder = FontTreeStoreBuilder(self.treestore)
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builder.add_font (font)
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for i in range(2):
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self.treeview = gtk.TreeView(self.treestore)
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#self.treeview.set_reorderable(True)
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col = gtk.TreeViewColumn('Column %d' % i)
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for i in range(2):
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self.treeview.append_column(col)
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col = gtk.TreeViewColumn('Column %d' % i)
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cell = gtk.CellRendererText()
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col.pack_start(cell, True)
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self.treeview.append_column(col)
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col.add_attribute(cell, 'text', i)
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cell = gtk.CellRendererText()
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col.pack_start(cell, True)
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col.set_sort_column_id(i)
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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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self.treeview.set_search_column(i)
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col.set_sort_column_id(i)
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self.scrolled_window.add(self.treeview)
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self.window.show_all()
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def main():
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gtk.main()
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def main(args=None):
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if args == None: args = sys.argv
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if len(args) < 2:
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print >>sys.stderr, "usage: %s font..." % args[0]
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sys.exit(1)
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for arg in args[1:]:
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viewer = PyFontView(arg)
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gtk.main()
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if __name__ == "__main__":
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viewer = PyFontView()
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main()
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main()
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