/*
 * Copyright 2006, Haiku. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Stephan Aßmus <superstippi@gmx.de>
 */

#include "BitmapExporter.h"

#include <Bitmap.h>
#include <BitmapStream.h>
#include <TranslatorFormats.h>
#include <TranslatorRoster.h>

#include "Icon.h"
#include "IconRenderer.h"
#include "ReferenceImage.h"


// constructor
BitmapExporter::BitmapExporter(uint32 size)
        : Exporter(),
          fFormat(B_PNG_FORMAT),
          fSize(size)
{
}

// destructor
BitmapExporter::~BitmapExporter()
{
}

// Export
status_t
BitmapExporter::Export(const Icon* icon, BPositionIO* stream)
{
        if (fSize == 0)
                return B_NO_INIT;

        // render icon into bitmap with given size and transparent background
        uint32 bitmapFlags = 0;

        #if __HAIKU__
        bitmapFlags |= B_BITMAP_NO_SERVER_LINK;
        #endif

        BBitmap bitmap(BRect(0, 0, fSize - 1, fSize - 1),
                                   bitmapFlags, B_RGBA32);

        status_t ret  = bitmap.InitCheck();
        if (ret < B_OK)
                return ret;

        IconRenderer renderer(&bitmap);
        renderer.SetIcon(icon);
        renderer.SetScale(fSize / 64.0);
        renderer.Render(false);
//      renderer.Demultiply(&bitmap);

        // save bitmap to translator
        BTranslatorRoster* roster = BTranslatorRoster::Default();
        if (!roster)
                return B_ERROR;

        BBitmapStream bitmapStream(&bitmap);
        ret = roster->Translate(&bitmapStream, NULL, NULL, stream, fFormat, 0);

        BBitmap* dummy;
        bitmapStream.DetachBitmap(&dummy);

        return ret;
}

// MIMEType
const char*
BitmapExporter::MIMEType()
{
        // TODO: ...
        return "image/png";
}