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  • Committer: Jean-Paul Calderone
  • Date: 2009-01-26 16:25:26 UTC
  • Revision ID: exarkun@divmod.com-20090126162526-2qyhiz3q4t7toooe
setCursorStyle, eraseToPageEnd, clearAllToNull

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tvi955.py
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    @ivar cursor: A three-tuple of the page, row, and column at which the
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        cursor is currently positioned.
 
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    @ivar modes: A dict mapping mode identifiers to their current setting.  See
 
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        L{ITVI955Terminal.setMode} for details.
 
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    @ivar replacementCharacter: The character which will be be used by any of
 
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        the erase functions if the mode is L{REPLACEMENT}.
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    """
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    implements(ITVI955Terminal)
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    def makeConnection(self, computer):
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        self.computer = computer
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        self.cursor = (0, 0, 0)
 
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        self.modes = {}
 
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        # XXX I can't figure out what the default replacement character is
 
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        # supposed to be.
 
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        self.replacementCharacter = ' '
 
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        self._initializeCharacters()
 
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    def _initializeCharacters(self):
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        self._characters = [['\0'] * 80 for i in range(24)]
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        self.cursor = (page, row, column)
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    def setCursorStyle(self, style):
 
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        self.cursorStyle = style
 
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    def clearAllToNull(self):
 
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        self.cursor = (0, 0, 0)
 
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        self.modes[PROTECT_MODE] = False
 
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        self.modes[WRITE_PROTECT_MODE] = False
 
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        self._initializeCharacters()
 
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    def eraseToLineEnd(self, mode):
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        page, row, col = self.cursor
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        if mode == REPLACEMENT:
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            replacement = self.replacementCharacter * (80 - col)
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            self._characters[row][col:] = replacement
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    def eraseToPageEnd(self, mode):
 
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        page, row, col = self.cursor
 
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        self.eraseToLineEnd(mode)
 
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        if mode == REPLACEMENT:
 
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            replacement = self.replacementCharacter * 80
 
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            for row in self._characters[row + 1:]:
 
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                row[:] = replacement
 
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    def blockGraphics(self, width, height):
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        pass
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