172 lines
4.9 KiB
C++
Executable file
172 lines
4.9 KiB
C++
Executable file
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_sd.hxx"
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#ifndef _SVX_ACCESSIBILITY_ACCESSIBLE_VIEW_FORWARDER_HXX
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#include "AccessibleViewForwarder.hxx"
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#endif
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#include <svx/svdpntv.hxx>
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#include <vcl/outdev.hxx>
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#include <svx/sdrpaintwindow.hxx>
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namespace accessibility {
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/** For the time beeing, the implementation of this class will not use the
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member mrDevice. Instead the device is retrieved from the view
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everytime it is used. This is necessary because the device has to stay
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up-to-date with the current view and the class has to stay compatible.
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May change in the future.
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*/
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AccessibleViewForwarder::AccessibleViewForwarder (SdrPaintView* pView, OutputDevice& rDevice)
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: mpView (pView),
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mnWindowId (0),
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mrDevice (rDevice)
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{
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// Search the output device to determine its id.
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for(sal_uInt32 a(0L); a < mpView->PaintWindowCount(); a++)
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{
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SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow(a);
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OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
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if(&rOutDev == &rDevice)
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{
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mnWindowId = (sal_uInt16)a;
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break;
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}
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}
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}
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AccessibleViewForwarder::~AccessibleViewForwarder (void)
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{
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// empty
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}
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sal_Bool AccessibleViewForwarder::IsValid (void) const
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{
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return sal_True;
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}
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Rectangle AccessibleViewForwarder::GetVisibleArea (void) const
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{
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Rectangle aVisibleArea;
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if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
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{
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SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
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aVisibleArea = pPaintWindow->GetVisibleArea();
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}
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return aVisibleArea;
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}
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/** Tansform the given point into pixel coordiantes. After the the pixel
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coordiantes of the window origin are added to make the point coordinates
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absolute.
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*/
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Point AccessibleViewForwarder::LogicToPixel (const Point& rPoint) const
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{
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OSL_ASSERT (mpView != NULL);
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if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
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{
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SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
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OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
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Rectangle aBBox(static_cast<Window&>(rOutDev).GetWindowExtentsRelative(0L));
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return rOutDev.LogicToPixel (rPoint) + aBBox.TopLeft();
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}
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else
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return Point();
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}
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Size AccessibleViewForwarder::LogicToPixel (const Size& rSize) const
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{
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OSL_ASSERT (mpView != NULL);
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if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
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{
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SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
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OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
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return rOutDev.LogicToPixel (rSize);
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}
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else
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return Size();
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}
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/** First subtract the window origin to make the point coordinates relative
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to the window and then transform them into internal coordinates.
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*/
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Point AccessibleViewForwarder::PixelToLogic (const Point& rPoint) const
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{
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OSL_ASSERT (mpView != NULL);
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if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
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{
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SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
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OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
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Rectangle aBBox (static_cast<Window&>(rOutDev).GetWindowExtentsRelative(0L));
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return rOutDev.PixelToLogic (rPoint - aBBox.TopLeft());
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}
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else
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return Point();
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}
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Size AccessibleViewForwarder::PixelToLogic (const Size& rSize) const
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{
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OSL_ASSERT (mpView != NULL);
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if((sal_uInt32)mnWindowId < mpView->PaintWindowCount())
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{
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SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow((sal_uInt32)mnWindowId);
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OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
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return rOutDev.PixelToLogic (rSize);
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}
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else
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return Size();
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}
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} // end of namespace accessibility
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