xref: /aoo41x/main/sw/source/core/crsr/IBlockCursor.hxx (revision 1d2dbeb0)
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23cdf0e10cSrcweir 
24cdf0e10cSrcweir #ifndef IBLOCKCURSOR_HXX_INCLUDED
25cdf0e10cSrcweir #define IBLOCKCURSOR_HXX_INCLUDED
26cdf0e10cSrcweir 
27cdf0e10cSrcweir class SwShellCrsr;
28cdf0e10cSrcweir class Point;
29cdf0e10cSrcweir 
30cdf0e10cSrcweir  /** Access to the block cursor
31cdf0e10cSrcweir 
32cdf0e10cSrcweir     A block cursor contains a SwShellCrsr and additional information about
33cdf0e10cSrcweir     the rectangle which has been created by pressing the mouse button and
34cdf0e10cSrcweir     moving the mouse.
35cdf0e10cSrcweir     This interface provides access to the SwShellCrsr and to start and end
36cdf0e10cSrcweir     point of the mouse movement.
37cdf0e10cSrcweir  */
38cdf0e10cSrcweir  class IBlockCursor
39cdf0e10cSrcweir  {
40cdf0e10cSrcweir  public:
41cdf0e10cSrcweir /** Access to the shell cursor
42cdf0e10cSrcweir 
43cdf0e10cSrcweir     @return SwShellCrsr& which represents the start and end position of the
44cdf0e10cSrcweir     current block selection
45cdf0e10cSrcweir */
46cdf0e10cSrcweir     virtual SwShellCrsr& getShellCrsr() = 0;
47cdf0e10cSrcweir 
48cdf0e10cSrcweir /** Defines the starting vertex of the block selection
49cdf0e10cSrcweir 
50cdf0e10cSrcweir     @param rPt
51cdf0e10cSrcweir     rPt should contain the document coordinates of the mouse cursor when
52cdf0e10cSrcweir     the block selection starts (MouseButtonDown)
53cdf0e10cSrcweir */
54cdf0e10cSrcweir     virtual void setStartPoint( const Point &rPt ) = 0;
55cdf0e10cSrcweir 
56cdf0e10cSrcweir /** Defines the ending vertex of the block selection
57cdf0e10cSrcweir 
58cdf0e10cSrcweir     @param rPt
59cdf0e10cSrcweir     rPt should contain the document coordinates of the mouse cursor when
60cdf0e10cSrcweir     the block selection has started and the mouse has been moved (MouseMove)
61cdf0e10cSrcweir */
62cdf0e10cSrcweir     virtual void setEndPoint( const Point &rPt ) = 0;
63cdf0e10cSrcweir 
64cdf0e10cSrcweir /** The document coordinates where the block selection has been started
65cdf0e10cSrcweir 
66cdf0e10cSrcweir     @return 0, if no start point has been set
67cdf0e10cSrcweir */
68cdf0e10cSrcweir     virtual const Point* getStartPoint() const = 0;
69cdf0e10cSrcweir 
70cdf0e10cSrcweir 
71cdf0e10cSrcweir /** The document coordinates where the block selection ends (at the moment)
72cdf0e10cSrcweir 
73cdf0e10cSrcweir     @return 0, if no end point has been set
74cdf0e10cSrcweir */
75cdf0e10cSrcweir     virtual const Point* getEndPoint() const = 0;
76cdf0e10cSrcweir 
77cdf0e10cSrcweir /** Deletion of the mouse created rectangle
78cdf0e10cSrcweir 
79cdf0e10cSrcweir     When start and end points exist, the block cursor depends on this. If the
80cdf0e10cSrcweir     cursor is moved by cursor keys (e.g. up/down, home/end) the mouse rectangle
81cdf0e10cSrcweir     is obsolet and has to be deleted.
82cdf0e10cSrcweir */
83cdf0e10cSrcweir     virtual void clearPoints() = 0;
84cdf0e10cSrcweir 
85cdf0e10cSrcweir /** Destructor of the block curosr interface
86cdf0e10cSrcweir */
~IBlockCursor()87cdf0e10cSrcweir     virtual ~IBlockCursor() {};
88cdf0e10cSrcweir  };
89cdf0e10cSrcweir 
90cdf0e10cSrcweir #endif // IBLOCKCURSOR_HXX_INCLUDED
91cdf0e10cSrcweir 
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