source: OGRE/trunk/ogrenew/OgreMain/include/OgreRectangle2D.h @ 692

Revision 692, 3.0 KB checked in by mattausch, 19 years ago (diff)

adding ogre 1.2 and dependencies

Line 
1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4(Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2005 The OGRE Team
8Also see acknowledgements in Readme.html
9
10This program is free software; you can redistribute it and/or modify it under
11the terms of the GNU Lesser General Public License as published by the Free Software
12Foundation; either version 2 of the License, or (at your option) any later
13version.
14
15This program is distributed in the hope that it will be useful, but WITHOUT
16ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19You should have received a copy of the GNU Lesser General Public License along with
20this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22http://www.gnu.org/copyleft/lesser.txt.
23-----------------------------------------------------------------------------
24*/
25#ifndef _Rectangle2D_H__
26#define _Rectangle2D_H__
27
28#include "OgrePrerequisites.h"
29
30#include "OgreSimpleRenderable.h"
31
32namespace Ogre {
33
34    /** Allows the rendering of a simple 2D rectangle
35    This class renders a simple 2D rectangle; this rectangle has no depth and
36    therefore is best used with specific render queue and depth settings,
37    like RENDER_QUEUE_BACKGROUND and 'depth_write off' for backdrops, and
38    RENDER_QUEUE_OVERLAY and 'depth_check off' for fullscreen quads.
39    */
40    class _OgreExport Rectangle2D : public SimpleRenderable
41    {
42    protected:
43        /** Override this method to prevent parent transforms (rotation,translation,scale)
44        */
45        void getWorldTransforms( Matrix4* xform ) const;
46        /** @copydoc Renderable::getWorldOrientation */
47        const Quaternion& getWorldOrientation(void) const;
48        /** @copydoc Renderable::getWorldPosition */
49        const Vector3& getWorldPosition(void) const;
50
51    public:
52
53        Rectangle2D(bool includeTextureCoordinates = false);
54        ~Rectangle2D();
55
56        /** Sets the corners of the rectangle, in relative coordinates.
57        @param
58        left Left position in screen relative coordinates, -1 = left edge, 1.0 = right edge
59        top Top position in screen relative coordinates, 1 = top edge, -1 = bottom edge
60        right Right position in screen relative coordinates
61        bottom Bottom position in screen relative coordinates
62        */
63        void setCorners(Real left, Real top, Real right, Real bottom);
64
65        Real getSquaredViewDepth(const Camera* cam) const { return 0; }
66
67        Real getBoundingRadius(void) const { return 0; }
68        /// Identity view and projection
69        bool useIdentityProjection(void) const { return true; }
70        /// Identity view and projection
71        bool useIdentityView(void) const { return true; }
72
73    };
74
75}// namespace
76
77#endif
78
79
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