/usr/include/osgText/FadeText is in libopenscenegraph-dev 3.2.1-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGTEXT_FADETEXT
#define OSGTEXT_FADETEXT 1
#include <osgText/Text>
namespace osgText {
class OSGTEXT_EXPORT FadeText : public osgText::Text
{
public:
FadeText();
FadeText(const Text& text,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgText,FadeText)
/** Set the speed that the alpha value changes as the text is occluded or becomes visible.*/
void setFadeSpeed(float fadeSpeed) { _fadeSpeed = fadeSpeed; }
/** Get the speed that the alpha value changes.*/
float getFadeSpeed() const { return _fadeSpeed; }
/** Draw the text.*/
virtual void drawImplementation(osg::RenderInfo& renderInfo) const;
protected:
virtual ~FadeText() {}
void init();
struct FadeTextUpdateCallback;
friend struct FadeTextUpdateCallback;
typedef std::map<osg::View*, osg::Vec4 > ViewBlendColourMap;
ViewBlendColourMap& getViewBlendColourMap() { return _viewBlendColourMap; }
const ViewBlendColourMap& getViewBlendColourMap() const { return _viewBlendColourMap; }
float _fadeSpeed;
mutable ViewBlendColourMap _viewBlendColourMap;
};
}
#endif
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