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/*
* Copyright (C) 2012 Research In Motion Limited. All rights reserved.
*/
#include "config.h"
#include "BackingStoreVisualizationViewportAccessor.h"
#include "BackingStore_p.h"
#include <BlackBerryPlatformPrimitives.h>
#include <algorithm>
using BlackBerry::Platform::FloatPoint;
using BlackBerry::Platform::IntPoint;
using BlackBerry::Platform::IntSize;
using BlackBerry::Platform::ViewportAccessor;
namespace BlackBerry {
namespace WebKit {
BackingStoreVisualizationViewportAccessor::BackingStoreVisualizationViewportAccessor(ViewportAccessor* originalAccessor, BackingStorePrivate* backingStorePrivate)
: m_originalAccessor(originalAccessor)
, m_backingStorePrivate(backingStorePrivate)
{
}
IntSize BackingStoreVisualizationViewportAccessor::pixelContentsSize() const
{
return roundToPixelFromDocumentContents(documentContentsRect()).size();
}
IntSize BackingStoreVisualizationViewportAccessor::documentContentsSize() const
{
return m_originalAccessor->documentContentsSize();
}
IntPoint BackingStoreVisualizationViewportAccessor::pixelScrollPosition() const
{
return roundToPixelFromDocumentContents(
toDocumentContents(state()->backingStoreOffset(), state()->scale()));
}
IntPoint BackingStoreVisualizationViewportAccessor::documentScrollPosition() const
{
return roundToDocumentContents(state()->backingStoreOffset(), state()->scale());
}
IntSize BackingStoreVisualizationViewportAccessor::pixelViewportSize() const
{
return m_originalAccessor->pixelViewportSize();
}
IntSize BackingStoreVisualizationViewportAccessor::documentViewportSize() const
{
return roundToDocumentFromPixelContents(pixelViewportRect()).size();
}
IntPoint BackingStoreVisualizationViewportAccessor::destinationSurfaceOffset() const
{
return m_originalAccessor->destinationSurfaceOffset();
}
double BackingStoreVisualizationViewportAccessor::scale() const
{
return state()->scale() / std::max(state()->numberOfTilesWide(), state()->numberOfTilesHigh());
}
BackingStoreGeometry* BackingStoreVisualizationViewportAccessor::state() const
{
return m_backingStorePrivate->frontState();
}
} // namespace WebKit
} // namespace BlackBerry
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