openscenegraph
DrawPixels
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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSG_DRAWPIXELS
15#define OSG_DRAWPIXELS 1
16
17#include <osg/Drawable>
18#include <osg/Vec3>
19#include <osg/Image>
20
21namespace osg {
22
23/** DrawPixels is an osg::Drawable subclass which encapsulates the drawing of
24 * images using glDrawPixels.*/
25class OSG_EXPORT DrawPixels : public Drawable
26{
27 public:
28
29 DrawPixels();
30
31 /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
32 DrawPixels(const DrawPixels& drawimage,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
33
34 virtual Object* cloneType() const { return new DrawPixels(); }
35
36 virtual Object* clone(const CopyOp& copyop) const { return new DrawPixels(*this,copyop); }
37
38 virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const DrawPixels*>(obj)!=NULL; }
39
40 virtual const char* libraryName() const { return "osg"; }
41 virtual const char* className() const { return "DrawPixels"; }
42
43
44 void setPosition(const osg::Vec3& position);
45
46 osg::Vec3& getPosition() { return _position; }
47 const osg::Vec3& getPosition() const { return _position; }
48
49 void setImage(osg::Image* image) { _image = image; }
50
51 osg::Image* getImage() { return _image.get(); }
52 const osg::Image* getImage() const { return _image.get(); }
53
54 void setUseSubImage(bool useSubImage) { _useSubImage=useSubImage; }
55 bool getUseSubImage() const { return _useSubImage; }
56
57 void setSubImageDimensions(unsigned int offsetX,unsigned int offsetY,unsigned int width,unsigned int height);
58 void getSubImageDimensions(unsigned int& offsetX,unsigned int& offsetY,unsigned int& width,unsigned int& height) const;
59
60 virtual void drawImplementation(RenderInfo& renderInfo) const;
61
62 virtual BoundingBox computeBoundingBox() const;
63
64 protected:
65
66 DrawPixels& operator = (const DrawPixels&) { return *this;}
67
68 virtual ~DrawPixels();
69
70 Vec3 _position;
71 ref_ptr<Image> _image;
72
73 bool _useSubImage;
74 unsigned int _offsetX, _offsetY, _width, _height;
75
76};
77
78}
79
80#endif