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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_sd.hxx"
26 
27 #ifndef _SVX_ACCESSIBILITY_ACCESSIBLE_VIEW_FORWARDER_HXX
28 #include "AccessibleViewForwarder.hxx"
29 #endif
30 #include <svx/svdpntv.hxx>
31 #include <vcl/outdev.hxx>
32 #include <svx/sdrpaintwindow.hxx>
33 
34 namespace accessibility {
35 
36 /** For the time beeing, the implementation of this class will not use the
37     member mrDevice.  Instead the device is retrieved from the view
38     everytime it is used.  This is necessary because the device has to stay
39     up-to-date with the current view and the class has to stay compatible.
40     May change in the future.
41 */
42 
AccessibleViewForwarder(SdrPaintView * pView,OutputDevice & rDevice)43 AccessibleViewForwarder::AccessibleViewForwarder (SdrPaintView* pView, OutputDevice& rDevice)
44     : mpView (pView),
45       mnWindowId (0),
46       mrDevice (rDevice)
47 {
48     // Search the output device to determine its id.
49 	for(sal_uInt32 a(0L); a < mpView->PaintWindowCount(); a++)
50 	{
51 		SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow(a);
52 		OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
53 
54 		if(&rOutDev == &rDevice)
55 		{
56             mnWindowId = (sal_uInt16)a;
57             break;
58 		}
59 	}
60 }
61 
62 
63 
64 
~AccessibleViewForwarder(void)65 AccessibleViewForwarder::~AccessibleViewForwarder (void)
66 {
67     // empty
68 }
69 
70 
71 
72 
IsValid(void) const73 sal_Bool AccessibleViewForwarder::IsValid (void) const
74 {
75     return sal_True;
76 }
77 
78 
79 
80 
GetVisibleArea(void) const81 Rectangle AccessibleViewForwarder::GetVisibleArea (void) const
82 {
83 	Rectangle aVisibleArea;
84 
85 	if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
86 	{
87 		SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
88 		aVisibleArea = pPaintWindow->GetVisibleArea();
89 	}
90 
91 	return aVisibleArea;
92 }
93 
94 
95 
96 
97 /** Tansform the given point into pixel coordiantes.  After the the pixel
98     coordiantes of the window origin are added to make the point coordinates
99     absolute.
100 */
LogicToPixel(const Point & rPoint) const101 Point AccessibleViewForwarder::LogicToPixel (const Point& rPoint) const
102 {
103     OSL_ASSERT (mpView != NULL);
104 	if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
105 	{
106 		SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
107 		OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
108         Rectangle aBBox(static_cast<Window&>(rOutDev).GetWindowExtentsRelative(0L));
109         return rOutDev.LogicToPixel (rPoint) + aBBox.TopLeft();
110 	}
111     else
112         return Point();
113 }
114 
115 
116 
117 
LogicToPixel(const Size & rSize) const118 Size AccessibleViewForwarder::LogicToPixel (const Size& rSize) const
119 {
120     OSL_ASSERT (mpView != NULL);
121 	if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
122 	{
123 		SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
124 		OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
125         return rOutDev.LogicToPixel (rSize);
126 	}
127     else
128         return Size();
129 }
130 
131 
132 
133 
134 /** First subtract the window origin to make the point coordinates relative
135     to the window and then transform them into internal coordinates.
136 */
PixelToLogic(const Point & rPoint) const137 Point AccessibleViewForwarder::PixelToLogic (const Point& rPoint) const
138 {
139     OSL_ASSERT (mpView != NULL);
140 	if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
141 	{
142 		SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
143 		OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
144         Rectangle aBBox (static_cast<Window&>(rOutDev).GetWindowExtentsRelative(0L));
145         return rOutDev.PixelToLogic (rPoint - aBBox.TopLeft());
146     }
147     else
148         return Point();
149 }
150 
151 
152 
153 
PixelToLogic(const Size & rSize) const154 Size AccessibleViewForwarder::PixelToLogic (const Size& rSize) const
155 {
156     OSL_ASSERT (mpView != NULL);
157 	if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
158 	{
159 		SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
160 		OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
161         return rOutDev.PixelToLogic (rSize);
162 	}
163 	else
164         return Size();
165 }
166 
167 
168 } // end of namespace accessibility
169