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/* ============================================================
*
* This file is a part of kipi-plugins project
* http://www.kipi-plugins.org
*
* Date : 2007-11-14
* Description : a kipi plugin to slide images.
*
* Copyright (C) 2007 by Valerio Fuoglio <valerio dot fuoglio at gmail dot com>
*
* Parts of this code are based on smoothslidesaver by Carsten Weinhold
* <carsten dot weinhold at gmx dot 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, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* ============================================================ */
#ifndef KBEFFECT_H
#define KBEFFECT_H
namespace KIPISlideShowPlugin
{
class Image;
class SlideShowKB;
class KBEffect
{
public:
typedef enum { Fade, Blend } Type;
KBEffect(SlideShowKB *parent, bool m_needFadeIn = true);
virtual ~KBEffect();
virtual void advanceTime(float step) = 0;
virtual Type type() = 0;
virtual bool done() = 0;
virtual bool fadeIn() const { return m_needFadeIn; };
static Type chooseKBEffect(Type oldType);
protected:
void setupNewImage(int img);
void swapImages();
Image *image(int img);
protected:
static int m_numKBEffectRepeated;
bool m_needFadeIn;
Image *m_img[2];
private:
SlideShowKB *slideWidget;
};
// -------------------------------------------------------------------------
class FadeKBEffect: public KBEffect
{
public:
FadeKBEffect(SlideShowKB *parent, bool m_needFadeIn = true);
virtual ~FadeKBEffect();
virtual void advanceTime(float step);
virtual Type type() { return Fade; };
virtual bool done();
};
// -------------------------------------------------------------------------
class BlendKBEffect: public KBEffect
{
public:
BlendKBEffect(SlideShowKB *parent, bool m_needFadeIn = true);
virtual ~BlendKBEffect();
virtual void advanceTime(float step);
virtual Type type() { return Blend; };
virtual bool done();
};
} // NameSpace KIPISlideShowPlugin
#endif // KBEFFECT_H
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