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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/

/***************************************************************************
                          scpattern.cpp  -  description
                             -------------------
    begin                : Sat Sep 9 2006
    copyright            : (C) 2006 by Franz Schmid
    email                : Franz.Schmid@altmuehlnet.de
 ***************************************************************************/


/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/


#include <QString>

#include "scpattern.h"
#include "scpainter.h"
#include "pageitem.h"
#include "pageitem_imageframe.h"
#include "scribusdoc.h"
#include "commonstrings.h"

ScPattern::ScPattern(ScribusDoc* theDoc)
         : doc(theDoc)
{

}

ScPattern::~ScPattern()
{
//      while (!items.isEmpty())
//      {
//              delete items.takeFirst();
//      }
}

void ScPattern::setDoc(ScribusDoc *theDoc)
{
        doc = theDoc;
}

QImage* ScPattern::getPattern()
{
        return &pattern;
}

void ScPattern::setPattern(const QString& filename)
{
        items.clear();
        doc->setLoading(true);

        PageItem* newItem = new PageItem_ImageFrame(doc, 0, 0, 1, 1, 0, CommonStrings::None, CommonStrings::None);
        if (newItem->loadImage(filename, false, 72, false))
        {
                pattern = newItem->pixm.qImage().copy();
                scaleX = (72.0 / newItem->pixm.imgInfo.xres) * newItem->pixm.imgInfo.lowResScale;
                scaleY = (72.0 / newItem->pixm.imgInfo.xres) * newItem->pixm.imgInfo.lowResScale;
                newItem->setWidth(pattern.width());
                newItem->setHeight(pattern.height());
                newItem->SetRectFrame();
                newItem->gXpos = 0.0;
                newItem->gYpos = 0.0;
                newItem->gWidth = pattern.width();
                newItem->gHeight = pattern.height();
                width = pattern.width();
                height = pattern.height();
                items.append(newItem);
        }
        else
        {
                pattern = QImage();
                delete newItem;
        }

        doc->setLoading(false);
}

void ScPattern::createPreview()
{
        double sc = 500.0 / qMax(width, height);

        bool savedFlag = doc->guidesPrefs().framesShown;
        bool savedDoDrawing = doc->DoDrawing;
        doc->guidesPrefs().framesShown = false;
        doc->DoDrawing = true;

        pattern = QImage(qRound(width * sc), qRound(height * sc), QImage::Format_ARGB32_Premultiplied);
        pattern.fill( qRgba(0, 0, 0, 0) );
        ScPainter *painter = new ScPainter(&pattern, pattern.width(), pattern.height(), 1, 0);
        painter->setZoomFactor(sc);
        for (int i = 0; i < items.count(); ++i)
        {
                PageItem* embedded = items.at(i);
                painter->save();
                painter->translate(embedded->gXpos, embedded->gYpos);
                embedded->isEmbedded = true;
                embedded->invalid = true;
                embedded->DrawObj(painter, QRectF());
                embedded->isEmbedded = false;
                painter->restore();
        }
        painter->end();
        delete painter;

        doc->DoDrawing = savedDoDrawing;
        doc->guidesPrefs().framesShown = savedFlag;
}