1 files changed, 104 insertions, 0 deletions
diff --git a/sd/source/ui/accessibility/AccessibleViewForwarder.cxx b/sd/source/ui/accessibility/AccessibleViewForwarder.cxx
new file mode 100644
index 000000000..09225e27f
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+++ b/sd/source/ui/accessibility/AccessibleViewForwarder.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <AccessibleViewForwarder.hxx>
+#include <svx/svdpntv.hxx>
+#include <vcl/window.hxx>
+#include <svx/sdrpaintwindow.hxx>
+#include <osl/diagnose.h>
+
+namespace accessibility
+{
+/** For the time being, the implementation of this class will not use the
+    member mrDevice.  Instead the device is retrieved from the view
+    every time it is used.  This is necessary because the device has to stay
+    up-to-date with the current view and the class has to stay compatible.
+    May change in the future.
+*/
+
+AccessibleViewForwarder::AccessibleViewForwarder(SdrPaintView* pView, const OutputDevice& rDevice)
+    : mpView(pView)
+    , mnWindowId(0)
+{
+    // Search the output device to determine its id.
+    for (sal_uInt32 a(0); a < mpView->PaintWindowCount(); a++)
+    {
+        SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow(a);
+        OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
+
+        if (&rOutDev == &rDevice)
+        {
+            mnWindowId = static_cast<sal_uInt16>(a);
+            break;
+        }
+    }
+}
+
+AccessibleViewForwarder::~AccessibleViewForwarder()
+{
+    // empty
+}
+
+::tools::Rectangle AccessibleViewForwarder::GetVisibleArea() const
+{
+    ::tools::Rectangle aVisibleArea;
+
+    if (static_cast<sal_uInt32>(mnWindowId) < mpView->PaintWindowCount())
+    {
+        SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow(static_cast<sal_uInt32>(mnWindowId));
+        aVisibleArea = pPaintWindow->GetVisibleArea();
+    }
+
+    return aVisibleArea;
+}
+
+/** Transform the given point into pixel coordinates.  After the pixel
+    coordinates of the window origin are added to make the point coordinates
+    absolute.
+*/
+Point AccessibleViewForwarder::LogicToPixel(const Point& rPoint) const
+{
+    OSL_ASSERT(mpView != nullptr);
+    if (static_cast<sal_uInt32>(mnWindowId) < mpView->PaintWindowCount())
+    {
+        SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow(static_cast<sal_uInt32>(mnWindowId));
+        OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
+        ::tools::Rectangle aBBox(rOutDev.GetOwnerWindow()->GetWindowExtentsRelative(nullptr));
+        return rOutDev.LogicToPixel(rPoint) + aBBox.TopLeft();
+    }
+    else
+        return Point();
+}
+
+Size AccessibleViewForwarder::LogicToPixel(const Size& rSize) const
+{
+    OSL_ASSERT(mpView != nullptr);
+    if (static_cast<sal_uInt32>(mnWindowId) < mpView->PaintWindowCount())
+    {
+        SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow(static_cast<sal_uInt32>(mnWindowId));
+        OutputDevice& rOutDev = pPaintWindow->GetOutputDevice();
+        return rOutDev.LogicToPixel(rSize);
+    }
+    else
+        return Size();
+}
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */