/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
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 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sdext.hxx"

#include "PresenterPane.hxx"
#include "PresenterController.hxx"
#include "PresenterPaintManager.hxx"
#include <com/sun/star/awt/XWindowPeer.hpp>
#include <com/sun/star/lang/XMultiComponentFactory.hpp>
#include <com/sun/star/drawing/CanvasFeature.hpp>
#include <com/sun/star/rendering/CompositeOperation.hpp>
#include <osl/mutex.hxx>

using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::drawing::framework;
using ::rtl::OUString;

namespace sdext { namespace presenter {

//===== PresenterPane =========================================================

PresenterPane::PresenterPane (
    const Reference<XComponentContext>& rxContext,
        const ::rtl::Reference<PresenterController>& rpPresenterController)
    : PresenterPaneBase(rxContext, rpPresenterController),
      maBoundingBox()
{
    Reference<lang::XMultiComponentFactory> xFactory (
        mxComponentContext->getServiceManager(), UNO_QUERY_THROW);
    mxPresenterHelper = Reference<drawing::XPresenterHelper>(
        xFactory->createInstanceWithContext(
            OUString::createFromAscii("com.sun.star.comp.Draw.PresenterHelper"),
            mxComponentContext),
        UNO_QUERY_THROW);
}


PresenterPane::~PresenterPane (void)
{
}


//----- XPane -----------------------------------------------------------------

Reference<awt::XWindow> SAL_CALL PresenterPane::getWindow (void)
    throw (RuntimeException)
{
    ThrowIfDisposed();
    return mxContentWindow;
}


Reference<rendering::XCanvas> SAL_CALL PresenterPane::getCanvas (void)
    throw (RuntimeException)
{
    ThrowIfDisposed();
    return mxContentCanvas;
}


//----- XWindowListener -------------------------------------------------------

void SAL_CALL PresenterPane::windowResized (const awt::WindowEvent& rEvent)
    throw (RuntimeException)
{
    (void)rEvent;
    PresenterPaneBase::windowResized(rEvent);

    Invalidate(maBoundingBox);
    
    LayoutContextWindow();
    ToTop();

    UpdateBoundingBox();
    Invalidate(maBoundingBox);
}


void SAL_CALL PresenterPane::windowMoved (const awt::WindowEvent& rEvent)
    throw (RuntimeException)
{
    (void)rEvent;
    PresenterPaneBase::windowMoved(rEvent);

    Invalidate(maBoundingBox);

    ToTop();

    UpdateBoundingBox();
    Invalidate(maBoundingBox);
}


void SAL_CALL PresenterPane::windowShown (const lang::EventObject& rEvent)
    throw (RuntimeException)
{
    (void)rEvent;
    PresenterPaneBase::windowShown(rEvent);

    ToTop();

    if (mxContentWindow.is())
    {
        LayoutContextWindow();
        mxContentWindow->setVisible(sal_True);
    }

    UpdateBoundingBox();
    Invalidate(maBoundingBox);
}


void SAL_CALL PresenterPane::windowHidden (const lang::EventObject& rEvent)
    throw (RuntimeException)
{
    (void)rEvent;
    PresenterPaneBase::windowHidden(rEvent);

    if (mxContentWindow.is())
        mxContentWindow->setVisible(sal_False);
}


//----- XPaintListener --------------------------------------------------------

void SAL_CALL PresenterPane::windowPaint (const awt::PaintEvent& rEvent)
    throw (RuntimeException)
{
    (void)rEvent;
    ThrowIfDisposed();

    PaintBorder(rEvent.UpdateRect);
}


//-----------------------------------------------------------------------------


void PresenterPane::CreateCanvases (
    const Reference<awt::XWindow>& rxParentWindow,
    const Reference<rendering::XSpriteCanvas>& rxParentCanvas)
{
    if ( ! mxPresenterHelper.is())
        return;
    if ( ! rxParentWindow.is())
        return;
    if ( ! rxParentCanvas.is())
        return;
    
    mxBorderCanvas = mxPresenterHelper->createSharedCanvas(
        rxParentCanvas,
        rxParentWindow,
        Reference<rendering::XCanvas>(rxParentCanvas, UNO_QUERY),
        rxParentWindow,
        mxBorderWindow);
    mxContentCanvas = mxPresenterHelper->createSharedCanvas(
        rxParentCanvas,
        rxParentWindow,
        Reference<rendering::XCanvas>(rxParentCanvas, UNO_QUERY),
        rxParentWindow,
        mxContentWindow);

    PaintBorder(mxBorderWindow->getPosSize());
}


void PresenterPane::Invalidate (const css::awt::Rectangle& rRepaintBox)
{
    // Invalidate the parent window to be able to invalidate an area outside
    // the current window area.
    mpPresenterController->GetPaintManager()->Invalidate(mxParentWindow, rRepaintBox);
}


void PresenterPane::UpdateBoundingBox (void)
{
    if (mxBorderWindow.is() && IsVisible())
        maBoundingBox = mxBorderWindow->getPosSize();
    else
        maBoundingBox = awt::Rectangle();
}


} } // end of namespace ::sd::presenter