scummvm/engines/stark/visual/flashingimage.h
2021-12-26 21:19:38 +01:00

84 lines
2.1 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.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef STARK_VISUAL_FLASHING_IMAGE_H
#define STARK_VISUAL_FLASHING_IMAGE_H
#include "engines/stark/visual/visual.h"
#include "common/array.h"
#include "common/rect.h"
#include "graphics/pixelformat.h"
#include "math/vector2d.h"
namespace Graphics {
struct Surface;
}
namespace Stark {
namespace Gfx {
class Driver;
class SurfaceRenderer;
class Texture;
}
/**
* An image with an animated flashing effect
*
* Used by the top bar when a new entry has been added to the player's diary
*/
class VisualFlashingImage : public Visual {
public:
static const VisualType TYPE = Visual::kFlashingImage;
explicit VisualFlashingImage(Gfx::Driver *gfx);
~VisualFlashingImage() override;
/** Prepare flashing the specified image */
void initFromSurface(const Graphics::Surface *surface, uint originalWidth, uint originalHeight);
/** Render the image at the specified position */
void render(const Common::Point &position);
private:
void updateFadeLevel();
Gfx::Driver *_gfx;
Gfx::SurfaceRenderer *_surfaceRenderer;
Gfx::Texture *_texture;
uint _originalWidth;
uint _originalHeight;
int _flashingTimeRemaining;
float _fadeLevel;
bool _fadeLevelIncreasing;
static const float _fadeValueMax;
};
} // End of namespace Stark
#endif // STARK_VISUAL_FLASHING_IMAGE_H