void MouseDialogNavigationTool::startDollying(void)
{
/* Calculate the dollying direction: */
if(mouseAdapter!=0&&mouseAdapter->getWindow()!=0)
dollyDirection=mouseAdapter->getWindow()->getViewer()->getHeadPosition()-calcScreenCenter();
else
dollyDirection=getMainViewer()->getHeadPosition()-calcScreenCenter();
dollyDirection.normalize();
/* Calculate initial motion position: */
motionStart=calcScreenPos();
preScale=getNavigationTransformation();
}
void MouseDialogNavigationTool::startScaling(void)
{
/* Calculate the scaling center: */
screenCenter=calcScreenCenter();
/* Calculate initial motion position: */
motionStart=calcScreenPos();
preScale=NavTrackerState::translateFromOriginTo(screenCenter);
postScale=NavTrackerState::translateToOriginFrom(screenCenter);
postScale*=getNavigationTransformation();
}
void MouseDialogNavigationTool::startRotating(void)
{
/* Calculate the rotation center: */
screenCenter=calcScreenCenter();
/* Calculate initial rotation position: */
lastRotationPos=calcScreenPos();
/* Calculate the rotation offset vector: */
rotateOffset=getMainScreen()->getScreenTransformation().transform(Vector(0,0,factory->rotatePlaneOffset));
preScale=NavTrackerState::translateFromOriginTo(screenCenter);
rotation=NavTrackerState::identity;
postScale=NavTrackerState::translateToOriginFrom(screenCenter);
postScale*=getNavigationTransformation();
}
void MouseDialogNavigationTool::startRotating(void)
{
/* Calculate the rotation center: */
screenCenter=calcScreenCenter();
/* Calculate initial rotation position: */
lastRotationPos=calcScreenPos();
/* Get the transformation of the screen currently containing the input device: */
Scalar viewport[4];
ONTransform screenT=getMouseScreenTransform(mouseAdapter,viewport);
/* Calculate the rotation offset vector: */
rotateOffset=screenT.transform(Vector(0,0,factory->rotatePlaneOffset));
preScale=NavTrackerState::translateFromOriginTo(screenCenter);
rotation=NavTrackerState::identity;
postScale=NavTrackerState::translateToOriginFrom(screenCenter);
postScale*=getNavigationTransformation();
}
void MouseNavigationTool::valuatorCallback(int,InputDevice::ValuatorCallbackData* cbData)
{
currentValue=Scalar(cbData->newValuatorValue);
if(currentValue!=Scalar(0))
{
/* Act depending on this tool's current state: */
switch(navigationMode)
{
case IDLE:
case SPINNING:
/* Try activating this tool: */
if(navigationMode==SPINNING||activate())
{
if(dolly)
{
/* Calculate the dollying direction: */
if(mouseAdapter!=0)
dollyDirection=mouseAdapter->getWindow()->getViewer()->getHeadPosition()-calcScreenCenter();
else
dollyDirection=getMainViewer()->getHeadPosition()-calcScreenCenter();
dollyDirection.normalize();
/* Initialize the wheel dollying factor: */
currentWheelScale=Scalar(1);
preScale=getNavigationTransformation();
/* Go to wheel dollying mode: */
navigationMode=DOLLYING_WHEEL;
}
else
{
/* Calculate the scaling center: */
screenCenter=calcScreenCenter();
/* Initialize the wheel scaling factor: */
currentWheelScale=Scalar(1);
preScale=NavTrackerState::translateFromOriginTo(screenCenter);
postScale=NavTrackerState::translateToOriginFrom(screenCenter);
postScale*=getNavigationTransformation();
/* Go to wheel scaling mode: */
navigationMode=SCALING_WHEEL;
}
}
break;
default:
/* This can definitely happen; just ignore the event */
break;
}
}
else
{
/* Act depending on this tool's current state: */
switch(navigationMode)
{
case DOLLYING_WHEEL:
case SCALING_WHEEL:
/* Deactivate this tool: */
deactivate();
/* Go to idle mode: */
navigationMode=IDLE;
break;
default:
/* This can definitely happen; just ignore the event */
break;
}
}
}