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SoGLPointSizeElement.h
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1 /*
2  *
3  * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * Further, this software is distributed without any warranty that it is
16  * free of the rightful claim of any third person regarding infringement
17  * or the like. Any license provided herein, whether implied or
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19  * any, provided herein do not apply to combinations of this program with
20  * other software, or any other product whatsoever.
21  *
22  * You should have received a copy of the GNU Lesser General Public
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24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25  *
26  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
27  * Mountain View, CA 94043, or:
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35  */
36 
37 
38 /*
39  * Copyright (C) 1990,91 Silicon Graphics, Inc.
40  *
41  _______________________________________________________________________
42  ______________ S I L I C O N G R A P H I C S I N C . ____________
43  |
44  | $Revision: 1.1.1.1 $
45  |
46  | Description:
47  | This file defines the SoGLPointSizeElement class.
48  |
49  | Author(s) : Paul S. Strauss
50  |
51  ______________ S I L I C O N G R A P H I C S I N C . ____________
52  _______________________________________________________________________
53  */
54 
55 #ifndef _SO_GL_POINT_SIZE_ELEMENT
56 #define _SO_GL_POINT_SIZE_ELEMENT
57 
59 
73 
75 
77 
78  public:
80  virtual void init(SoState *state);
81 
85  virtual void push(SoState *state);
86 
88  virtual void pop(SoState *state, const SoElement *prevTopElement);
89 
90  SoINTERNAL public:
92  static void initClass();
93 
94  protected:
96  virtual void setElt(float size);
97 
99 
100  private:
107  bool copiedFromParent;
108 
110  SoState *state;
111 
113  void send();
114 };
115 
116 #endif /* _SO_GL_POINT_SIZE_ELEMENT */
#define SoEXTENDER
Provide inline template functions for abs, swap, min, max, and clamp.
Definition: SbBasic.h:154
#define SoINTERNAL
Definition: SbBasic.h:155
#define INVENTOR_API
Disable some annoying warnings on MSVC 6.
Definition: SbSystem.h:81
#define SO_ELEMENT_HEADER(className)
This one is for non-abstract element classes.
Definition: SoSubElement.h:112
This is the abstract base class for all state elements.
Definition: SoElement.h:96
Element that stores the current point size in GL.
static void initClass()
Initializes the SoGLPointSizeElement class.
virtual void setElt(float size)
Sets the point size in an instance. Has GL side effects.
virtual void push(SoState *state)
Override push() method to copy state pointer and value of previous element, to avoid sending GL comma...
virtual ~SoGLPointSizeElement()
virtual void init(SoState *state)
Initializes element.
virtual void pop(SoState *state, const SoElement *prevTopElement)
Override pop() method so side effects can occur in GL.
Element that stores the current point size.
An SoState collects and holds state while traversing a scene graph.
Definition: SoState.h:82