tk_canvas.py 文件源码

def _tk_redraw_canvas(self, width, height):
        if self._canvas:
            self._canvas.destroy()
        self._fnormal = Font(family='Monospace', size=13)
        self._fbold = Font(family='Monospace', weight='bold', size=13)
        self._fitalic = Font(family='Monospace', slant='italic', size=13)
        self._fbolditalic = Font(family='Monospace', weight='bold',
                                 slant='italic', size=13)
        self._colsize = self._fnormal.measure('A')
        self._rowsize = self._fnormal.metrics('linespace')
        self._canvas = Canvas(self._root, width=self._colsize * width,
                              height=self._rowsize * height)
        self._tk_fill_region(0, height - 1, 0, width - 1)
        self._cursor_row = 0
        self._cursor_col = 0
        self._scroll_top = 0
        self._scroll_bot = height - 1
        self._scroll_left = 0
        self._scroll_right = width - 1
        self._width, self._height = (width, height,)
        self._canvas.pack()