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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_editeng.hxx"
30 
31 #include <algorithm>
32 #include <tools/debug.hxx>
33 #include <vcl/outdev.hxx>
34 
35 #include <editeng/svxfont.hxx>
36 #include <editeng/AccessibleStringWrap.hxx>
37 
38 //------------------------------------------------------------------------
39 //
40 // AccessibleStringWrap implementation
41 //
42 //------------------------------------------------------------------------
43 
44 AccessibleStringWrap::AccessibleStringWrap( OutputDevice& rDev, SvxFont& rFont, const String& rText ) :
45     mrDev( rDev ),
46     mrFont( rFont ),
47     maText( rText )
48 {
49 }
50 
51 sal_Bool AccessibleStringWrap::GetCharacterBounds( sal_Int32 nIndex, Rectangle& rRect )
52 {
53     DBG_ASSERT(nIndex >= 0 && nIndex <= USHRT_MAX,
54                "SvxAccessibleStringWrap::GetCharacterBounds: index value overflow");
55 
56     mrFont.SetPhysFont( &mrDev );
57 
58     // #108900# Handle virtual position one-past-the end of the string
59     if( nIndex >= maText.Len() )
60     {
61         // create a caret bounding rect that has the height of the
62         // current font and is one pixel wide.
63         rRect.Left() = mrDev.GetTextWidth(maText);
64         rRect.Top() = 0;
65         rRect.SetSize( Size(mrDev.GetTextHeight(), 1) );
66     }
67     else
68     {
69         sal_Int32 aXArray[2];
70         mrDev.GetCaretPositions( maText, aXArray, static_cast< sal_uInt16 >(nIndex), 1 );
71         rRect.Left() = 0;
72         rRect.Top() = 0;
73         rRect.SetSize( Size(mrDev.GetTextHeight(), labs(aXArray[0] - aXArray[1])) );
74         rRect.Move( ::std::min(aXArray[0], aXArray[1]), 0 );
75     }
76 
77     if( mrFont.IsVertical() )
78     {
79         // #101701# Rotate to vertical
80         rRect = Rectangle( Point(-rRect.Top(), rRect.Left()),
81                            Point(-rRect.Bottom(), rRect.Right()));
82     }
83 
84     return sal_True;
85 }
86 
87 sal_Int32 AccessibleStringWrap::GetIndexAtPoint( const Point& rPoint )
88 {
89     // search for character bounding box containing given point
90     Rectangle aRect;
91     sal_Int32 i, nLen = maText.Len();
92     for( i=0; i<nLen; ++i )
93     {
94         GetCharacterBounds(i, aRect);
95         if( aRect.IsInside(rPoint) )
96             return i;
97     }
98 
99     return -1;
100 }
101