scummvm/engines/pegasus/transition.h
2020-02-09 12:43:16 +01:00

109 lines
3.2 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* Additional copyright for this file:
* Copyright (C) 1995-1997 Presto Studios, Inc.
*
* 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.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef PEGASUS_TRANSITION_H
#define PEGASUS_TRANSITION_H
#include "pegasus/fader.h"
namespace Graphics {
struct Surface;
}
namespace Pegasus {
class ScreenFader : public Fader {
public:
ScreenFader();
~ScreenFader() override;
void doFadeOutSync(const TimeValue = kOneSecondPerThirtyTicks, const TimeScale = kThirtyTicksPerSecond, bool isBlack = true);
void doFadeInSync(const TimeValue = kHalfSecondPerThirtyTicks, const TimeScale = kThirtyTicksPerSecond, bool isBlack = true);
void setFaderValue(const int32) override;
private:
bool _isBlack;
uint32 fadePixel(uint32 color, int32 percent) const;
Graphics::Surface _screen;
};
// Transitions are faders that range over [0,1000], which makes their
// "resolution" one tenth of a percent
static const int kTransitionBottom = 0;
static const int kTransitionTop = 1000;
static const int kTransitionRange = kTransitionTop - kTransitionBottom;
class Transition : public FaderAnimation {
public:
Transition(const DisplayElementID id);
~Transition() override {}
void setBounds(const Common::Rect &) override;
virtual void setInAndOutElements(DisplayElement *, DisplayElement *);
DisplayElement *getInElement() { return _inPicture; }
DisplayElement *getOutElement() { return _outPicture; }
protected:
DisplayElement *_outPicture;
DisplayElement *_inPicture;
CoordType _boundsWidth, _boundsHeight;
};
class Slide : public Transition {
public:
Slide(const DisplayElementID id) : Transition(id) {}
~Slide() override {}
virtual void setSlideDirection(SlideDirection dir) { _direction = dir; }
void draw(const Common::Rect &) override;
virtual void setDirection(const SlideDirection dir) { _direction = dir; }
protected:
virtual void adjustSlideRects(Common::Rect &, Common::Rect &);
virtual void drawElements(const Common::Rect &, const Common::Rect &, const Common::Rect &);
virtual void drawSlideElement(const Common::Rect &, const Common::Rect &, DisplayElement *);
SlideDirection _direction;
};
class Push : public Slide {
public:
Push(const DisplayElementID id) : Slide(id) {}
~Push() override {}
protected:
void adjustSlideRects(Common::Rect &, Common::Rect &) override;
};
} // End of namespace Pegasus
#endif