void InputDevice::sendFullTouchEvent(QTouchEvent *event)
{
if (!mouseFocus()) {
qWarning("Cannot send touch event, no pointer focus, fix the compositor");
return;
}
if (event->type() == QEvent::TouchCancel) {
sendTouchCancelEvent();
return;
}
TouchExtensionGlobal *ext = m_compositor->touchExtension();
if (ext && ext->postTouchEvent(event, mouseFocus()))
return;
const QList<QTouchEvent::TouchPoint> points = event->touchPoints();
if (points.isEmpty())
return;
const int pointCount = points.count();
QPointF pos = mouseFocus()->pos();
for (int i = 0; i < pointCount; ++i) {
const QTouchEvent::TouchPoint &tp(points.at(i));
// Convert the local pos in the compositor window to surface-relative.
QPointF p = tp.pos() - pos;
sendTouchPointEvent(tp.id(), p.x(), p.y(), tp.state());
}
sendTouchFrameEvent();
}
void RaduisControlet::injectMouseMove(int _absx, int _absy, int _absz)
{
if( mPick &&
(_absx!=mMouseX ||
_absy!=mMouseY) ){
Game& game = Game::getSingleton();
int sx = game.getScreenWidth();
int sy = game.getScreenHeight();
Ogre::Vector3 eye = game.getCamera()->getPosition();
Ogre::Ray B = game.getCamera()->getCameraToViewportRay(
(Ogre::Real)_absx/(Ogre::Real)sx,
(Ogre::Real)_absy/(Ogre::Real)sy
);
Ogre::Matrix3 m3 = mNode->getLocalAxes();
Ogre::Vector3 v3 = mNode->getPosition();
Math3d::CalcResult result = Math3d::CalcRayPlanePoint( B,
Ogre::Plane(m3.GetColumn(2),v3) );
if( result.first ){
Ogre::Real r = v3.distance( result.second );
Ogre::Real R = r-2*mScale;
if( R <= 1 )
R = 1;
setRaduis( v3,m3.GetColumn(2),R,mScale );
mNotify( mName,R );
}
mMouseX = _absx;
mMouseY = _absy;
}
mouseFocus( _absx,_absy );
}
void RotateControlet::injectMouseMove(int _absx, int _absy, int _absz){
if( mPick &&
(_absx!=mMouseX ||
_absy!=mMouseY) ){
/*上一个鼠标位置和眼睛组成的射线A，新的鼠标位置和眼睛组成的射线B
它们和旋转盘相交，交点和旋转盘中心组成的矢量的角度，既是旋转角
*/
Game& game = Game::getSingleton();
int sx = game.getScreenWidth();
int sy = game.getScreenHeight();
Ogre::Vector3 eye = game.getCamera()->getPosition();
Ogre::Ray A = game.getCamera()->getCameraToViewportRay(
(Ogre::Real)mMouseX/(Ogre::Real)sx,
(Ogre::Real)mMouseY/(Ogre::Real)sy
);
Ogre::Ray B = game.getCamera()->getCameraToViewportRay(
(Ogre::Real)_absx/(Ogre::Real)sx,
(Ogre::Real)_absy/(Ogre::Real)sy
);
//计算和旋转盘的交点，旋转盘是一个平面
//平面的法向量是Local Z轴，平面通过Local原点
Ogre::Matrix3 m3 = mNode->getLocalAxes();
Ogre::Vector3 v3 = mNode->getPosition();
Ogre::Vector3 axis(m3[0][2],m3[1][2],m3[2][2]);
Ogre::Plane P(axis,v3 ); //旋转盘平面
Math3d::CalcResult result1 = Math3d::CalcRayPlanePoint( A,P );
Math3d::CalcResult result2 = Math3d::CalcRayPlanePoint( B,P );
if( result1.first && result2.first ){
//方程都有解
Ogre::Vector3 a,b;
a = result1.second;
b = result2.second;
a -= v3;b -= v3;
a.normalise();
b.normalise();
Ogre::Vector3 c = b.crossProduct(a);
Ogre::Real sinv = c.length();
Ogre::Real ang = asinf(sinv);
if( axis.dotProduct( c ) > 0 )
ang = -ang;
mNode->rotate( axis,Ogre::Radian(ang),Ogre::Node::TS_WORLD );
mNotify( mName,axis,ang );
}
mMouseX = _absx;
mMouseY = _absy;
}
mouseFocus( _absx,_absy );
}
void OrientationControlet::injectMouseMove(int _absx, int _absy, int _absz){
if( mPick &&
(_absx!=mMouseX ||
_absy!=mMouseY) ){
/*计算和摇杆球面的交点
*/
Game& game = Game::getSingleton();
int sx = game.getScreenWidth();
int sy = game.getScreenHeight();
Ogre::Vector3 eye = game.getCamera()->getPosition();
Ogre::Ray A = game.getCamera()->getCameraToViewportRay(
(Ogre::Real)mMouseX/(Ogre::Real)sx,
(Ogre::Real)mMouseY/(Ogre::Real)sy
);
Ogre::Ray B = game.getCamera()->getCameraToViewportRay(
(Ogre::Real)_absx/(Ogre::Real)sx,
(Ogre::Real)_absy/(Ogre::Real)sy
);
//计算和旋转盘的交点，旋转盘是一个平面
//平面的法向量是Local Z轴，平面通过Local原点
Ogre::Matrix3 m3 = mNode->getLocalAxes();
Ogre::Vector3 v3 = mNode->getPosition();
Ogre::Vector3 axis = m3.GetColumn(2);
Ogre::Sphere S(v3,mRaduis);
Math3d::CalcResult result1 = Math3d::CalcRaySphereNearFarPoint(A,S,mNearFar);
Math3d::CalcResult result2 = Math3d::CalcRaySphereNearFarPoint(B,S,mNearFar);
if( result1.first && result2.first ){//都相交
//然后使用直线的参数方程计算出具体的焦点
Ogre::Vector3 a = result1.second;
Ogre::Vector3 b = result2.second;
a -= v3;b -= v3;
a.normalise();
b.normalise();
Ogre::Vector3 c = b.crossProduct(a);
Ogre::Real sinv = c.length();
Ogre::Real ang = -asinf(sinv);
c.normalise();
mNode->rotate( c,Ogre::Radian(ang),Ogre::Node::TS_WORLD );
mNotify( mName,c,ang );
}
mMouseX = _absx;
mMouseY = _absy;
}
mouseFocus( _absx,_absy );
}
void LinearControlet::injectMouseMove(int _absx, int _absy, int _absz){
if( mPick &&
(_absx!=mMouseX ||
_absy!=mMouseY) ){
/*鼠标按下点(mMouseX,mMouseY)连接眼睛的位置，在空间形成一条直线(直线A)。
同样(_absx,_absy)与眼睛相连也形成一条直线(直线B)。这两条直线可以构成一个平面(叫V平面吧)。
而LinearControlet的位置和方向在空间也形成一条直线(C)。该直线在V上的投影直线与直线A与B相交
形成一个矢量，把该矢量投影回C,形成一个移动向量。
简化点：这个问题等价与两个直线间的最短距离。A与C B与C
*/
Game& game = Game::getSingleton();
int sx = game.getScreenWidth();
int sy = game.getScreenHeight();
Ogre::Vector3 eye = game.getCamera()->getPosition();
Ogre::Ray A = game.getCamera()->getCameraToViewportRay(
(Ogre::Real)mMouseX/(Ogre::Real)sx,
(Ogre::Real)mMouseY/(Ogre::Real)sy
);
Ogre::Ray B = game.getCamera()->getCameraToViewportRay(
(Ogre::Real)_absx/(Ogre::Real)sx,
(Ogre::Real)_absy/(Ogre::Real)sy
);
Ogre::Matrix3 m3 = mNode->getLocalAxes();
Ogre::Vector3 v3 = mNode->getPosition();
//m3[0][2],m3[1][2],m3[2][2] 是Z坐标轴在世界坐标中的矢量
Ogre::Ray C(v3,Ogre::Vector3(m3[0][2],m3[1][2],m3[2][2]));
Math3d::CalcResult result1 = Math3d::CalcNearPoint( C,A );
Math3d::CalcResult result2 = Math3d::CalcNearPoint( C,B );
if( result1.first && result2.first ){
Ogre::Vector3 a = result1.second;
Ogre::Vector3 b = result2.second;
/*将移动限制在mLimited之间，mLimited是两个直线参数
*/
Ogre::Ray ray(mPosition,-mDirection);
Ogre::Real t = Math3d::RayParameter( ray,v3 + b-a );
if( t < mLimited[0] )
t = mLimited[0];
if( t > mLimited[1] )
t = mLimited[1];
Ogre::Vector3 p = Math3d::RayPoint( ray,t );
mNode->setPosition( p );
mNotify( mName,p-v3 );
}
mMouseX = _absx;
mMouseY = _absy;
}
mouseFocus( _absx,_absy );
}
