/****************************************************************************
**
** Copyright (C) 2002-2006 Frank Hemer <frank@hemer.org>,
**                         Tilo Riemer <riemer@crossvc.com>,
**                         Jose Hernandez <joseh@tesco.net>
**
**
**----------------------------------------------------------------------------
**
**----------------------------------------------------------------------------
**
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** CrossVC is released under the terms of GPL also.
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** CrossVC is released under the terms of the 
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**
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** CrossVC License for non-Unix platforms (CLNU):
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** Redistribution and use in binary form, without modification, 
** are permitted provided that the following conditions are met:
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** it under the terms of the GNU General Public License as published by 
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*****************************************************************************/

#include "config.h"

#include <qdict.h>
#include <qdir.h>
#include <qdragobject.h> 
#include <qglobal.h>
#include <qimage.h>
#include <qmime.h>
#include <qstring.h>
#include "pixmapcache.h"


static QDict<QPixmap> dictLoaded;


/**
 * Loads the icons found in the given directory to the internal icon dictionary.
 *
 * @param	DirName
 *	name of the directory to load icons from. 
 */

void loadPixmapsFromDisk(const QString &DirName)
{
    dictLoaded.clear();

    if (DirName.length() < 1) return;  //no icon dir

    QImage img;

    QDir dir(DirName, "*.xpm *.gif *.bmp *.png *.jpeg *.jpg",
	    QDir::Unsorted, QDir::Files);

    unsigned int i;
    for (i = 0; i < dir.count(); i++) {
        QString fileName = DirName;
        fileName += "/";
        fileName += dir[i];

        int dotPos = dir[i].findRev(".");
        QString imgName = dir[i].left(dotPos);

        if (img.load(fileName)) {
            //TODO: alpha channel

            QPixmap* pPixmap = new QPixmap; 
            pPixmap->convertFromImage(img);
            dictLoaded.insert (imgName, pPixmap);
        }
    }
}


/**
 * Find the requested (Embedded) pixmap.
 *
 * @param	name
 *	name of the pixmap to find
 * @return
 *	reference to the requested pixmap if it exist or a default pixmap if the
 *	requested one was not found.
 */

const QPixmap &findEmbeddedPixmap(const QString &name)
{
	QPixmap *pPixmap;

	/** First look for user provided pixmaps... */
	if ((pPixmap = dictLoaded.find(name)) != 0)
		return *pPixmap;

	/** ...if that fails, use the internal pixmaps. */
	const QMimeSource *m;

	if ((m = QMimeSourceFactory::defaultFactory()->data(name + ".xpm")) != 0)
	{
		pPixmap = new QPixmap(); 
		QImageDrag::decode(m, *pPixmap);
		dictLoaded.insert(name, pPixmap);
	}
	else if ((m = QMimeSourceFactory::defaultFactory()->data("lincvs-missing.xpm")) != 0)
	{
		pPixmap = new QPixmap(); 
		QImageDrag::decode(m, *pPixmap);
		dictLoaded.insert(name, pPixmap);
	}
	else
	{
		static QPixmap DefaultPixmap;
		pPixmap = &DefaultPixmap;

		qDebug("Image file "+name+".xpm not found");
	}

	return *pPixmap;
}