void
motion(int x, int y)
{
switch(currentState) {
case panning:
updatePan(x,y);
break;
case zooming:
updateZoom(x,y);
break;
}
xlast=x;
ylast=y;
}
/*!
\internal
*/
void QDeclarativeGeoMapGestureArea::panStateMachine()
{
PanState lastState = panState_;
// Transitions
switch (panState_) {
case panInactive:
if (canStartPan()) {
// Update startCoord_ to ensure smooth start for panning when going over startDragDistance
QGeoCoordinate newStartCoord = map_->screenPositionToCoordinate(QDoubleVector2D(lastPos_), false);
startCoord_.setLongitude(newStartCoord.longitude());
startCoord_.setLatitude(newStartCoord.latitude());
panState_ = panActive;
}
break;
case panActive:
if (touchPoints_.count() == 0) {
panState_ = panFlick;
if (!tryStartFlick())
{
panState_ = panInactive;
// mark as inactive for use by camera
if (pinchState_ == pinchInactive)
emit movementStopped();
}
}
break;
case panFlick:
if (touchPoints_.count() > 0) { // re touched before movement ended
endFlick();
panState_ = panActive;
}
break;
}
// Update
switch (panState_) {
case panInactive: // do nothing
break;
case panActive:
updatePan();
// this ensures 'panStarted' occurs after the pan has actually started
if (lastState != panActive)
emit panStarted();
break;
case panFlick:
break;
}
}
/*!
\internal
*/
void QDeclarativeGeoMapGestureArea::panStateMachine()
{
PanState lastState = panState_;
// Transitions
switch (panState_) {
case panInactive:
if (canStartPan())
panState_ = panActive;
break;
case panActive:
if (touchPoints_.count() == 0) {
panState_ = panFlick;
if (!tryStartFlick())
{
panState_ = panInactive;
// mark as inactive for use by camera
if (pinchState_ == pinchInactive)
emit movementStopped();
}
}
break;
case panFlick:
if (touchPoints_.count() > 0) { // re touched before movement ended
endFlick();
panState_ = panActive;
}
break;
}
// Update
switch (panState_) {
case panInactive: // do nothing
break;
case panActive:
updatePan();
// this ensures 'panStarted' occurs after the pan has actually started
if (lastState != panActive)
emit panStarted();
break;
case panFlick:
break;
}
}
//--------------------------------------------------------------------------------------------------
/// The window coordinates are in OpenGL style coordinates, which means a right handed
/// coordinate system with the origin in the lower left corner of the window.
//--------------------------------------------------------------------------------------------------
bool LocatorPanWalkRotate::update(int x, int y)
{
CVF_ASSERT(m_camera.notNull());
if (x == m_lastPosX && y == m_lastPosY) return false;
const double vpPixSizeX = m_camera->viewport()->width();
const double vpPixSizeY = m_camera->viewport()->height();
if (vpPixSizeX <= 0 || vpPixSizeY <= 0) return false;
// Normalized movement in screen plane
const double tx = (x - m_lastPosX)/vpPixSizeX;
const double ty = (y - m_lastPosY)/vpPixSizeY;
Vec3d oldPos = m_pos;
if (m_operation == PAN)
{
updatePan(tx, ty);
}
else if (m_operation == WALK)
{
updateWalk(ty);
}
m_lastPosX = x;
m_lastPosY = y;
if (m_pos == oldPos)
{
return false;
}
else
{
return true;
}
}
