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Various work on osgViewer library, including warp point and graphics window resize support

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This commit is contained in:
Robert Osfield
2007-01-01 18:20:10 +00:00
parent 88fc4ee986
commit 7155f7d1b0
36 changed files with 1624 additions and 1030 deletions
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51
include/osg/Viewport
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@@ -23,9 +23,15 @@ namespace osg {
class OSG_EXPORT Viewport : public StateAttribute
{
public :
#if 0
typedef int value_type;
#else
typedef double value_type;
#endif
Viewport();
Viewport(int x,int y,int width,int height):
Viewport(value_type x,value_type y,value_type width,value_type height):
_x(x),
_y(y),
_width(width),
@@ -58,14 +64,15 @@ class OSG_EXPORT Viewport : public StateAttribute
return 0; // passed all the above comparison macro's, must be equal.
}
inline void setViewport(int x,int y,int width,int height)
inline void setViewport(value_type x,value_type y,value_type width,value_type height)
{
_x = x;
_y = y;
_width = width;
_height = height;
}
#if 0
void getViewport(int& x,int& y,int& width,int& height) const
{
x = _x;
@@ -74,24 +81,32 @@ class OSG_EXPORT Viewport : public StateAttribute
height = _height;
}
inline int& x() { return _x; }
inline int x() const { return _x; }
void getViewport(double& x,double& y,double& width,double& height) const
{
x = _x;
y = _y;
width = _width;
height = _height;
}
#endif
inline value_type& x() { return _x; }
inline value_type x() const { return _x; }
inline int& y() { return _y; }
inline int y() const { return _y; }
inline value_type& y() { return _y; }
inline value_type y() const { return _y; }
inline int& width() { return _width; }
inline int width() const { return _width; }
inline value_type& width() { return _width; }
inline value_type width() const { return _width; }
inline int& height() { return _height; }
inline int height() const { return _height; }
inline value_type& height() { return _height; }
inline value_type height() const { return _height; }
inline bool valid() const { return _width!=0 && _height!=0; }
inline bool valid() const { return _width>0 && _height>0; }
/** Return the aspectRatio of the viewport, which is equal to width/height.
* If height is zero, the potental division by zero is avoided by simply returning 1.0f.
*/
inline float aspectRatio() const { if (_height!=0) return (float)_width/(float)_height; else return 1.0f; }
inline double aspectRatio() const { if (_height!=0) return (double)_width/(double)_height; else return 1.0; }
/** Compute the Window Matrix which takes projected coords into Window coordinates.
* To convert local coordinates into window coordinates use v_window = v_local * MVPW matrix,
@@ -101,7 +116,7 @@ class OSG_EXPORT Viewport : public StateAttribute
*/
inline const osg::Matrix computeWindowMatrix() const
{
return osg::Matrix::translate(1.0f,1.0f,1.0f)*osg::Matrix::scale(0.5f*width(),0.5f*height(),0.5f)*osg::Matrix::translate(x(),y(),0.0f);
return osg::Matrix::translate(1.0,1.0,1.0)*osg::Matrix::scale(0.5*width(),0.5*height(),0.5f)*osg::Matrix::translate(x(),y(),0.0f);
}
virtual void apply(State& state) const;
@@ -110,10 +125,10 @@ class OSG_EXPORT Viewport : public StateAttribute
virtual ~Viewport();
int _x;
int _y;
int _width;
int _height;
value_type _x;
value_type _y;
value_type _width;
value_type _height;
};