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stable cmdui: make sure newly-opened prompt line is visible (fixes #42)

Because scintilla delays line wrapping, it should re-scroll on painted
notification.

> To scroll to the position correctly, delay the scroll until the wrapping
> has been performed by waiting for an initial SCN_PAINTED notification.

(from http://www.scintilla.org/ScintillaDoc.html#LineWrapping)

Changeset d4fc350ab1d2…

Parent eb514f9e9e6e…

by Yuya Nishihara

Changes to one file · Browse files at d4fc350ab1d2 Showing diff from parent eb514f9e9e6e Diff from another changeset...

Change 1 of 1 Show Entire File tortoisehg/​hgqt/​cmdui.py Stacked
 
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@@ -403,6 +403,17 @@
  self.setCursorPosition(self.lines() - 1, len(self._prompt))   self.setReadOnly(False)   + # make sure the prompt line is visible. Because QsciScintilla may + # delay line wrapping, setCursorPosition() doesn't always scrolls + # to the correct position. + # http://www.scintilla.org/ScintillaDoc.html#LineWrapping + self.SCN_PAINTED.connect(self._scrollCaretOnPainted) + + @pyqtSlot() + def _scrollCaretOnPainted(self): + self.SCN_PAINTED.disconnect(self._scrollCaretOnPainted) + self.SendScintilla(self.SCI_SCROLLCARET) +   @pyqtSlot()   def closePrompt(self):   """Disable user input"""