如何检查书签是否包含表格？

Question

是否有可能确定何时Bookmark包含TextTable？我想通过XTextRange对象来查看，但是，文档没有指定任何关于比较范围的内容。

Answer 1

所以先从下面的代码：

XBookmarksSupplier xBookmarksSupplier = 
    (XBookmarksSupplier)UnoRuntime.queryInterface(
    XBookmarksSupplier.class, xComponent); 
    XNameAccess xNamedBookmarks = xBookmarksSupplier.getBookmarks(); 
Object bookmark = xNamedBookmarks.getByName("TextAndTable"); 
XTextContent xBookmarkContent = (XTextContent)UnoRuntime.queryInterface(
    XTextContent.class, bookmark); 
XTextRange xTextRange = xBookmarkContent.getAnchor(); 

这听起来像你问如何确定是否有位于由xTextRange规定的范围内的一个或多个文本表格。

为此，我通常使用View Cursor。这很慢，但普通文本光标无法遍历不同的文本对象，所以如果范围内有文本表或其他对象，它将会失败。

这里是我的Python类，这或许可以适应的Java：

def differentPlaces(oCurs1, oCurs2): 
    """Test using compareRegion to see if two cursors are in different places. 
    If compareRegion fails, such as after a nested table, return False. 
    """ 
    try: 
     oText = oCurs1.getText() 
     return oText.compareRegionEnds(oCurs1, oCurs2) != 0 
    except IllegalArgumentException: 
     logger.info("Could not compare region.") 
     return False 

class RangeCompare: 
    """Compare the viewcursor to a text range (a location). 
    Can be useful when traversing a cursor over a range. 
    The range is expected not to be modified. 
    """ 
    def __init__(self, rangeEnd, viewCursor): 
     self.oVC = viewCursor 
     self.rangeEnd = rangeEnd 
     self.endX = -1 
     self.endY = -1 

    def getCoords(self): 
     if self.endY > -1: 
      return 
     # remember where we were, because we'll need to use the viewcursor 
     originalVC = self.oVC.getText().createTextCursorByRange(self.oVC) 

     self.oVC.gotoRange(self.rangeEnd, False) 
     self.endX = self.oVC.getPosition().X 
     self.endY = self.oVC.getPosition().Y 

     self.oVC.gotoRange(originalVC, False) 

    def compareVC(self): 
     """Compare the viewcursor to the range. 
     Assume we are travelling with the viewcursor. 
     See if it is up to the end yet or not. 
     The comparison is done by checking the physical position of the cursor. 
     Returns -1 if the VC location is less than self.rangeEnd, 0 if it is 
     the same, and 1 if it is greater. 
     Returns -2 if they are on the same line but not in the same spot, and 
     it's not certain which location is greater. 
     """ 
     self.getCoords() 
     curX = self.oVC.getPosition().X 
     curY = self.oVC.getPosition().Y 
     if curY < self.endY: 
      logger.debug("%d < %d", curY, self.endY) 
      return -1 
     elif curY > self.endY: 
      logger.debug("%d > %d", curY, self.endY) 
      return 1 
     elif curY == self.endY: 
      if curX == self.endX: 
       if differentPlaces(self.oVC, self.rangeEnd): 
        # There is probably a word-final diacritic that doesn't 
        # change the position, so we're not to the end yet. 
        logger.debug("Including word-final diacritic.") 
        return -2 
       # We're at the end. 
       logger.debug(
        "VC same loc as text range (%d, %d).", curX, curY) 
       return 0 
      else: 
       logger.debug("Probably haven't gone far enough.") 
       return -2 

实例化类的东西，如rangeCompare = RangeCompare(xTextRange.getEnd(), xViewCursor)。

将视图光标移动到xTextRange的开头。然后继续拨打xViewCursor.goRight(1, False)进行循环。每次检查光标是否位于TextTable中。当rangeCompare.compareVC() > 0停止。