/**
* @brief Assigns proper zoom ratio for new Display Mode
*/
void MapWindow::Zoom::SwitchMode()
{
if(!_inited)
return;
if((mode._mode & Mode::MODE_TARGET_PAN) && !(mode._lastMode & Mode::MODE_TARGET_PAN)) {
// TARGET_PAN enabled
_requestedScale = &_modeScale[SCALE_TARGET_PAN];
CalculateTargetPanZoom();
zoom._bigZoom = true;
}
else if(mode._mode & Mode::MODE_TARGET_PAN) {
// do not change zoom for other mode changes while in TARGET_PAN mode
return;
}
else if(mode._mode & Mode::MODE_PAN) {
if(!(mode._lastMode & Mode::MODE_PAN))
// PAN enabled - use current map scale if PAN enabled
_modeScale[SCALE_PAN] = *_requestedScale;
_requestedScale = &_modeScale[SCALE_PAN];
// do not change zoom for other mode changes while in PAN mode
return;
}
else if((mode._mode & Mode::MODE_PANORAMA) && !(mode._lastMode & Mode::MODE_PANORAMA)) {
// PANORAMA enabled
_requestedScale = &_modeScale[SCALE_PANORAMA];
zoom._bigZoom = true;
}
else if(mode._mode & Mode::MODE_PANORAMA) {
// do not change zoom for mode changes while in PANORAMA mode
return;
}
else {
if((mode._mode & Mode::MODE_CIRCLING) && _circleZoom) {
_requestedScale = &_modeScale[SCALE_CIRCLING];
}
else {
_requestedScale = &_modeScale[SCALE_CRUISE];
if(_autoZoom)
CalculateAutoZoom();
}
_bigZoom = true;
}
*_requestedScale = LimitMapScale(*_requestedScale);
RefreshMap();
}
/**
* @brief Updates current map scale
*/
void MapWindow::Zoom::UpdateMapScale()
{
static bool pg_autozoom_turned_on = false;
if(mode.Is(Mode::MODE_TARGET_PAN)) {
// update TARGET_PAN
CalculateTargetPanZoom();
if(_scale != *_requestedScale)
ModifyMapScale();
return;
}
// in PG mode if autozoom is set to on, and waypoint distance drops below
// PGAutoZoomThreshold, we should turn on autozoom if it is off. Do this only once, let the user able to turn it off near WP
if ( ISPARAGLIDER && AutoZoom_Config && !_autoZoom && (DerivedDrawInfo.ZoomDistance>0) && (DerivedDrawInfo.ZoomDistance < PGAutoZoomThreshold)) {
if (!pg_autozoom_turned_on) {
EventAutoZoom(1);
pg_autozoom_turned_on = true;
}
}
if (DerivedDrawInfo.ZoomDistance > (PGAutoZoomThreshold + 200.0)) {
// Set state variable back to false, with some distance hysteresis
pg_autozoom_turned_on = false;
}
if(_autoZoom &&
mode.Special() == Mode::MODE_SPECIAL_NONE &&
!(_circleZoom && mode.Is(Mode::MODE_CIRCLING))) {
// Calculate Auto Zoom only if not in Special or Circling Zoom
CalculateAutoZoom();
if(_scale != *_requestedScale)
ModifyMapScale();
return;
}
// if there is user intervention in the scale
if(_scale != *_requestedScale)
ModifyMapScale();
}
/**
* @brief Updates current map scale
*/
void MapWindow::Zoom::UpdateMapScale()
{
if(mode.Is(Mode::MODE_TARGET_PAN)) {
// update TARGET_PAN
CalculateTargetPanZoom();
if(_scale != *_requestedScale)
ModifyMapScale();
return;
}
if(_autoZoom &&
mode.Special() == Mode::MODE_SPECIAL_NONE &&
!(_circleZoom && mode.Is(Mode::MODE_CIRCLING))) {
// Calculate Auto Zoom only if not in Special or Circling Zoom
CalculateAutoZoom();
if(_scale != *_requestedScale)
ModifyMapScale();
return;
}
// if there is user intervention in the scale
if(_scale != *_requestedScale)
ModifyMapScale();
}
