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qtconsole: wrap argument list in tooltip to match width of text body #2662

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merged 1 commit into from Dec 14, 2012
Merged

qtconsole: wrap argument list in tooltip to match width of text body #2662

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13 changes: 12 additions & 1 deletion IPython/frontend/qt/console/call_tip_widget.py
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Expand Up @@ -137,7 +137,7 @@ def show_call_info(self, call_line=None, doc=None, maxlines=20):

if call_line:
doc = '\n\n'.join([call_line, doc])
return self.show_tip(doc)
return self.show_tip(self._format_tooltip(doc))

def show_tip(self, tip):
""" Attempts to show the specified tip at the current cursor location.
Expand Down Expand Up @@ -248,6 +248,17 @@ def _leave_event_hide(self):
QtGui.qApp.topLevelAt(QtGui.QCursor.pos()) != self):
self._hide_timer.start(300, self)

def _format_tooltip(self,doc):
import textwrap

# make sure a long argument list does not make
# the first row overflow the width of the actual tip body
rows = doc.split("\n")
max_text_width = max(80, max([len(x) for x in rows[1:]]))
rows= textwrap.wrap(rows[0],max_text_width) + rows[1:]
doc = "\n".join(rows)
return doc

#------ Signal handlers ----------------------------------------------------

def _cursor_position_changed(self):
Expand Down