/usr/include/osgViewer/Keystone is in libopenscenegraph-dev 3.2.0~rc1-4.
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 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | /* -*-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 OSGVIEWER_Keystone
#define OSGVIEWER_Keystone 1
#include <osg/Geometry>
#include <osg/Geode>
#include <osg/DisplaySettings>
#include <osgGA/GUIEventHandler>
#include <osgViewer/Export>
namespace osgViewer
{
class OSGVIEWER_EXPORT Keystone : public osg::Object
{
public:
Keystone();
Keystone(const Keystone& rhs, const osg::CopyOp& copop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgViewer, Keystone)
void reset();
Keystone& operator = (const Keystone& rhs);
void setKeystoneEditingEnabled(bool flag) { keystoneEditingEnabled = flag; }
bool getKeystoneEditingEnabled() const { return keystoneEditingEnabled; }
void setGridColor(const osg::Vec4& color) { gridColour = color; }
osg::Vec4& getGridColor() { return gridColour; }
const osg::Vec4& getGridColor() const { return gridColour; }
void setBottomLeft(const osg::Vec2d& v) { bottom_left = v; }
osg::Vec2d& getBottomLeft() { return bottom_left; }
const osg::Vec2d& getBottomLeft() const { return bottom_left; }
void setBottomRight(const osg::Vec2d& v) { bottom_right = v; }
osg::Vec2d& getBottomRight() { return bottom_right; }
const osg::Vec2d& getBottomRight() const { return bottom_right; }
void setTopLeft(const osg::Vec2d& v) { top_left = v; }
osg::Vec2d& getTopLeft() { return top_left; }
const osg::Vec2d& getTopLeft() const { return top_left; }
void setTopRight(const osg::Vec2d& v) { top_right = v; }
osg::Vec2d& getTopRight() { return top_right; }
const osg::Vec2d& getTopRight() const { return top_right; }
void compute3DPositions(osg::DisplaySettings* ds, osg::Vec3& tl, osg::Vec3& tr, osg::Vec3& br, osg::Vec3& bl) const;
osg::Geode* createKeystoneDistortionMesh();
osg::Node* createGrid();
/** Write the file specified by the "filename" user value field. Return true if file successfully written. */
bool writeToFile();
/** convinience function that loads and assigns any keystone files specified in the DisplaySettings::KeystoneFileNames list, return true if Keystone's assigned to DisplaySettings.*/
static bool loadKeystoneFiles(osg::DisplaySettings* ds);
protected:
bool keystoneEditingEnabled;
osg::Vec4 gridColour;
osg::Vec2d bottom_left;
osg::Vec2d bottom_right;
osg::Vec2d top_left;
osg::Vec2d top_right;
protected:
virtual ~Keystone() {}
};
class OSGVIEWER_EXPORT KeystoneHandler : public osgGA::GUIEventHandler
{
public:
KeystoneHandler(Keystone* keystone);
~KeystoneHandler() {}
bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa, osg::Object* obj, osg::NodeVisitor* nv);
void setKeystoneEditingEnabled(bool enabled) { if (_currentControlPoints.valid()) _currentControlPoints->setKeystoneEditingEnabled(enabled); }
bool getKeystoneEditingEnabled() const { return _currentControlPoints.valid() ? _currentControlPoints->getKeystoneEditingEnabled() : false; }
enum Region
{
NONE_SELECTED,
TOP_LEFT,
TOP,
TOP_RIGHT,
RIGHT,
BOTTOM_RIGHT,
BOTTOM,
BOTTOM_LEFT,
LEFT,
CENTER
};
osg::Vec2d incrementScale(const osgGA::GUIEventAdapter& ea) const;
Region computeRegion(const osgGA::GUIEventAdapter& ea) const;
void move(Region region, const osg::Vec2d& delta);
protected:
osg::ref_ptr<Keystone> _keystone;
osg::Vec2d _defaultIncrement;
osg::Vec2d _ctrlIncrement;
osg::Vec2d _shiftIncrement;
osg::Vec2d _keyIncrement;
osg::Vec2d _startPosition;
osg::ref_ptr<Keystone> _startControlPoints;
Region _selectedRegion;
osg::ref_ptr<Keystone> _currentControlPoints;
};
}
#endif
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