void WorldPinsService::GetPinEcefAndScreenLocations(const WorldPinItemModel& pinItemModel,
Eegeo::dv3& ecefLocation,
Eegeo::v2& screenLocation) const
{
Eegeo::Pins::Pin* pPin = m_pinRepository.GetPinById(pinItemModel.Id());
Eegeo_ASSERT(pPin != NULL);
ecefLocation = m_environmentFlatteningService.GetScaledPointEcef(pPin->GetEcefPosition(),
m_environmentFlatteningService.GetCurrentScale());
Eegeo::Geometry::Bounds2D outScreenBounds = Eegeo::Geometry::Bounds2D::Empty();
m_pinController.GetScreenBoundsForPin(*pPin, outScreenBounds);
screenLocation = outScreenBounds.center();
}
void PinsWithAttachedJavaUIExample::Draw()
{
//lazily create the pin button when we start drawing so it is not displayed on top of the loading screen
if(m_world.Initialising()) {
return;
}
else if(m_buttonID == 0) {
CreateJavaUIButton();
}
AndroidSafeNativeThreadAttachment attached(m_nativeState);
JNIEnv* env = attached.envForThread;
Eegeo_ASSERT(m_buttonID != 0);
// Get the pin position on the screen
Eegeo::Pins::PinRepository& pinRepo = m_pPinsModule->GetRepository();
Eegeo::Pins::Pin* pPin = pinRepo.GetPinAtIndex(0);
Eegeo_ASSERT(pPin != NULL);
Eegeo::Pins::PinController& pinController = m_pPinsModule->GetController();
Eegeo::Geometry::Bounds2D pinScreenBounds = Eegeo::Geometry::Bounds2D::Empty();
pinController.GetScreenBoundsForPin(*pPin, pinScreenBounds);
Eegeo::v2 screenPosition = pinScreenBounds.center();
// now update the java ui to be in sync with the pin, positioned above it on screen.
// the pixel nudging is hard-coded for simplicity; you should probably do something more sophisticated
// (based on the size of your pin & java ui assets)
const int buttonOffsetPixelsX = 40;
const int buttonOffsetPixelsY = 110;
env->CallVoidMethod(
m_hudPinController,
m_updateLocationMethodId,
m_buttonID,
screenPosition.GetX() - buttonOffsetPixelsX,
screenPosition.GetY() - buttonOffsetPixelsY
);
}