libreoffice/sdext/source/presenter/PresenterSprite.cxx

/* -*- 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 "PresenterSprite.hxx"

#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/rendering/CompositeOperation.hpp>
#include <com/sun/star/rendering/RenderState.hpp>
#include <com/sun/star/rendering/ViewState.hpp>

using namespace ::com::sun::star;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::UNO_QUERY;

namespace sdext { namespace presenter {

PresenterSprite::PresenterSprite()
    : mxSpriteFactory(),
      mxSprite(),
      maSize(0,0),
      maLocation(0,0),
      mbIsVisible(false),
      mnPriority(0),
      mnAlpha(1.0)
{
}

PresenterSprite::~PresenterSprite()
{
    if (mxSprite.is())
    {
        mxSprite->hide();
        Reference<lang::XComponent> xComponent (mxSprite, UNO_QUERY);
        if (xComponent.is())
            xComponent->dispose();
        mxSprite = NULL;
    }
}

void PresenterSprite::SetFactory (
    const css::uno::Reference<css::rendering::XSpriteCanvas>& rxSpriteFactory)
{
    if (mxSpriteFactory != rxSpriteFactory)
    {
        DisposeSprite();
        mxSpriteFactory = rxSpriteFactory;
        if (mbIsVisible)
            ProvideSprite();
    }
}

css::uno::Reference<css::rendering::XCanvas> PresenterSprite::GetCanvas()
{
    ProvideSprite();
    if (mxSprite.is())
        return mxSprite->getContentCanvas();
    else
        return NULL;
}

void PresenterSprite::Show()
{
    mbIsVisible = true;
    if (mxSprite.is())
        mxSprite->show();
    else
        ProvideSprite();
}

void PresenterSprite::Hide()
{
    mbIsVisible = false;
    if (mxSprite.is())
        mxSprite->hide();
}

void PresenterSprite::Resize (const css::geometry::RealSize2D& rSize)
{
    maSize = rSize;
    if (mxSprite.is())
        DisposeSprite();
    if (mbIsVisible)
        ProvideSprite();
}

void PresenterSprite::MoveTo (const css::geometry::RealPoint2D& rLocation)
{
    maLocation = rLocation;
    if (mxSprite.is())
        mxSprite->move(
            maLocation,
            rendering::ViewState(
                geometry::AffineMatrix2D(1,0,0, 0,1,0),
                NULL),
            rendering::RenderState(
                geometry::AffineMatrix2D(1,0,0, 0,1,0),
                NULL,
                uno::Sequence<double>(4),
                rendering::CompositeOperation::SOURCE)
            );
}

void PresenterSprite::Update()
{
    if (mxSpriteFactory.is())
        mxSpriteFactory->updateScreen(sal_False);
}

void PresenterSprite::ProvideSprite()
{
    if ( ! mxSprite.is()
        && mxSpriteFactory.is()
        && maSize.Width>0
        && maSize.Height>0)
    {
        mxSprite = mxSpriteFactory->createCustomSprite(maSize);
        if (mxSprite.is())
        {
            mxSprite->move(maLocation,
                rendering::ViewState(
                geometry::AffineMatrix2D(1,0,0, 0,1,0),
                NULL),
            rendering::RenderState(
                geometry::AffineMatrix2D(1,0,0, 0,1,0),
                NULL,
                uno::Sequence<double>(4),
                rendering::CompositeOperation::SOURCE)
                );
            mxSprite->setAlpha(mnAlpha);
            mxSprite->setPriority(mnPriority);
            if (mbIsVisible)
                mxSprite->show();
        }
    }
}

void PresenterSprite::DisposeSprite()
{
    if (mxSprite.is())
    {
        mxSprite->hide();
        Reference<lang::XComponent> xComponent (mxSprite, UNO_QUERY);
        if (xComponent.is())
            xComponent->dispose();
        mxSprite = NULL;
    }
}

} } //end of namespace sdext::presenter

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