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86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef NANCY_RENDEROBJECT_H
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#define NANCY_RENDEROBJECT_H
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#include "graphics/managed_surface.h"
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namespace Nancy {
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class NancyEngine;
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class GraphicsManager;
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// Loosely equivalent to the original engine's ZRenderStructs.
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// A subclass of this will be automatically updated and drawn from the graphics manager,
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// but initialization needs to be done manually. Objects are expected to know which
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// object is below them at creation.
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class RenderObject {
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friend class GraphicsManager;
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public:
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RenderObject(uint16 zOrder);
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RenderObject(RenderObject &redrawFrom, uint16 zOrder);
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RenderObject(RenderObject &redrawFrom, uint16 zOrder, Graphics::ManagedSurface &surface, const Common::Rect &srcBounds, const Common::Rect &destBounds);
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virtual ~RenderObject();
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virtual void init(); // Does not get called automatically
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virtual void registerGraphics(); // Does not get called automatically
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virtual void updateGraphics() {}
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void moveTo(Common::Point position);
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void setVisible(bool visible);
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void setTransparent(bool isTransparent);
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bool hasMoved() const { return _previousScreenPosition != _screenPosition; }
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Common::Rect getScreenPosition() const;
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Common::Rect getPreviousScreenPosition() const;
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// Given a screen-space rect, convert it to the source surface's local space
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Common::Rect convertToLocal(const Common::Rect &screen) const;
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// Given a local space rect, convert it to screen space
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Common::Rect convertToScreen(const Common::Rect &rect) const;
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Common::Rect getBounds() const { return Common::Rect(_drawSurface.w, _drawSurface.h); }
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Graphics::ManagedSurface _drawSurface;
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Common::Rect _screenPosition;
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protected:
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// Z order and blit type are extracted directly from the corresponding
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// ZRenderStruct from the original engine
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uint16 getZOrder() const { return _z; }
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// Needed for proper handling of objects inside the viewport
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virtual bool isViewportRelative() const { return false; }
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RenderObject *_redrawFrom;
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bool _needsRedraw;
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bool _isVisible;
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uint16 _z;
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Common::Rect _previousScreenPosition;
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};
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} // End of namespace Nancy
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#endif // NANCY_RENDEROBJECT_H
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