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class unused_methods_in_class_MT_View: #removed from it, bruce 081216
def repaint_some_nodes_NOT_YET_USED(self, nodes): #bruce 080507 experimental, for cross-highlighting; maybe not used; rename?
"""
For each node in nodes, repaint that node, if it was painted the last
time we repainted self as a whole. (If it wasn't, it might not be an
error, if it was due to that node being inside a closed group, or to
a future optim for nodes not visible due to scrolling, or if we're being
called on a new node before it got painted here the first time; so we
print no warning unless debug flags are set.)
Optimization for non-visible nodes (outside scrollarea viewport) is
permitted, but not implemented as of 080507.
@warning: this can only legally be called during a paintEvent on self.
Otherwise it doesn't paint (but causes no harm, I think)
and Qt prints errors to the console. THE INITIAL IMPLEM IN
THE CALLERS IGNORES THIS ISSUE AND THEREFORE DOESN'T YET WORK.
See code comments for likely fix.
"""
# See docstring comment about the caller implem not yet working.
# The fix will probably be for the outer-class methods to queue up the
# nodes to repaint incrementally, and do the necessary update calls
# so that a paintEvent can occur, and set enough new flags to make it
# incremental, so its main effect will just be to call this method.
# The danger is that other update calls (not via our modelTreeGui's mt_update method)
# are coming from Qt and need to be non-incremental. (Don't know, should find out.)
# So an initial fix might just ignore the "incremental" issue
# except for deferring the mt_update effects themselves
# (but I'm not sure if those effects are legal inside paintEvent!).
if not self._painted:
# called too early; not an error
return
# (Possible optim: it will often happen that none of the passed nodes
# have stored positions. We could check for this first and not bother
# to set up the painter in that case. I'm guessing this is not needed.)
painter = QtGui.QPainter()
painter.begin(self)
try:
for node in nodes:
where = self._painted.get(node) # (x, y) or None
if where:
print "mt debug fyi: repainting %r" % (node,) #### remove when works
x, y = where
_paintnode(node, painter, x, y, self.palette_widget,
option_holder = self)
else:
print "mt debug fyi: NOT repainting %r" % (node,) #### remove when works
continue
finally:
painter.end()
return
# WARNING: the following methods duplicate some of the code in
# _our_QItemDelegate in the other MT implem, far above [now removed].
# Also, they are mostly not yet used (still true, 070612). They might be
# used to help make in-place node-label-edit work again.
def createEditor(self, node):
"""
Create and return a QLineEdit child widget to serve as an editor for the given node; initialize its text.
"""
parent = self
qle = QLineEdit(parent)
self.setEditorData(qle, node)
return qle
def setEditorData(self, lineEdit, node):
"""
copy the editable data from node to lineEdit
"""
value = node.name
lineEdit.setText(value)
return
def setModelData(self, lineEdit, node):
"""
copy the editable data from lineEdit to node (if permitted); display a statusbar message about the result
"""
# Note: try_rename checks node.rename_enabled()
# BUG: try_rename doesn't handle unicode (though it seems to handle some non-ascii chars somehow)
# Note: see similar code in a method in another class in this file.
oldname = node.name
ok, text = node.try_rename( lineEdit.text() )
# if ok, text is the new text, perhaps modified;
# if not ok, text is an error message
if ok:
msg = "Renamed node [%s] to [%s]" % (oldname, text) ##e need quote_html??
self.statusbar_message(msg)
## self.modeltreegui.mt_update() #e might be redundant with caller; if so, might be a speed hit
else:
msg = "Can't rename node [%s]: %s" % (oldname, text) # text is reason why not
self.statusbar_message(msg)
return
def updateEditorGeometry(self, editor, option, index):
rect = option.rect
rect.setX(rect.x() + _ICONSIZE[0])
qfm = QFontMetrics(editor.font())
width = qfm.width(editor.text()) + 10
width = min(width, rect.width() - _ICONSIZE[0])
## parent = self.parent()
parent = self
width = min(width, parent.width() - 50 - rect.x())
rect.setWidth(width)
editor.setGeometry(rect)
return
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