/*
 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "flutter/sky/engine/platform/graphics/Image.h"

#include "flutter/sky/engine/platform/Length.h"
#include "flutter/sky/engine/platform/SharedBuffer.h"
#include "flutter/sky/engine/platform/geometry/FloatPoint.h"
#include "flutter/sky/engine/platform/geometry/FloatRect.h"
#include "flutter/sky/engine/platform/geometry/FloatSize.h"
#include "flutter/sky/engine/platform/graphics/GraphicsContext.h"
#include "flutter/sky/engine/platform/graphics/GraphicsContextStateSaver.h"
#include "flutter/sky/engine/public/platform/Platform.h"
#include "flutter/sky/engine/wtf/MainThread.h"
#include "flutter/sky/engine/wtf/StdLibExtras.h"

#include <math.h>

namespace blink {

Image::Image(ImageObserver* observer)
    : m_imageObserver(observer)
{
}

Image::~Image()
{
}

bool Image::setData(PassRefPtr<SharedBuffer> data, bool allDataReceived)
{
    m_encodedImageData = data;
    if (!m_encodedImageData.get())
        return true;

    int length = m_encodedImageData->size();
    if (!length)
        return true;

    return dataChanged(allDataReceived);
}

void Image::fillWithSolidColor(GraphicsContext* ctxt, const FloatRect& dstRect, const Color& color, CompositeOperator op)
{
    if (!color.alpha())
        return;

    CompositeOperator previousOperator = ctxt->compositeOperation();
    ctxt->setCompositeOperation(!color.hasAlpha() && op == CompositeSourceOver ? CompositeCopy : op);
    ctxt->fillRect(dstRect, color);
    ctxt->setCompositeOperation(previousOperator);
}

FloatRect Image::adjustForNegativeSize(const FloatRect& rect)
{
    FloatRect norm = rect;
    if (norm.width() < 0) {
        norm.setX(norm.x() + norm.width());
        norm.setWidth(-norm.width());
    }
    if (norm.height() < 0) {
        norm.setY(norm.y() + norm.height());
        norm.setHeight(-norm.height());
    }
    return norm;
}

void Image::draw(GraphicsContext* ctx, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator op, WebBlendMode blendMode, RespectImageOrientationEnum)
{
}

void Image::drawTiled(GraphicsContext* ctxt, const FloatRect& destRect, const FloatPoint& srcPoint, const FloatSize& scaledTileSize, CompositeOperator op, WebBlendMode blendMode, const IntSize& repeatSpacing)
{
}

// FIXME: Merge with the other drawTiled eventually, since we need a combination of both for some things.
void Image::drawTiled(GraphicsContext* ctxt, const FloatRect& dstRect, const FloatRect& srcRect,
    const FloatSize& providedTileScaleFactor, TileRule hRule, TileRule vRule, CompositeOperator op)
{
}

void Image::drawPattern(GraphicsContext* context, const FloatRect& floatSrcRect, const FloatSize& scale,
    const FloatPoint& phase, CompositeOperator compositeOp, const FloatRect& destRect, WebBlendMode blendMode, const IntSize& repeatSpacing)
{
}

void Image::computeIntrinsicDimensions(Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio)
{
}

PassRefPtr<Image> Image::imageForDefaultFrame()
{
    RefPtr<Image> image(this);
    return image.release();
}

} // namespace blink