IconManager(NativeMapView nativeMapView) {
this.nativeMapView = nativeMapView;
this.icons = new ArrayList<>();
// load transparent icon for MarkerView to trace actual markers, see #6352
loadIcon(
IconFactory.recreate(IconFactory.ICON_MARKERVIEW_ID, IconFactory.ICON_MARKERVIEW_BITMAP));
}
Icon loadIconForMarker(Marker marker) {
Icon icon = marker.getIcon();
// calculating average before adding
int iconSize = icons.size() + 1;
// TODO replace former if case with anchor implementation,
// current workaround for having extra pixels is diving height by 2
if (icon == null) {
icon = IconFactory.getInstance(nativeMapView.getContext()).defaultMarker();
Bitmap bitmap = icon.getBitmap();
averageIconHeight =
averageIconHeight + (bitmap.getHeight() / 2 - averageIconHeight) / iconSize;
averageIconWidth = averageIconWidth + (bitmap.getWidth() - averageIconWidth) / iconSize;
marker.setIcon(icon);
} else {
Bitmap bitmap = icon.getBitmap();
averageIconHeight = averageIconHeight + (bitmap.getHeight() - averageIconHeight) / iconSize;
averageIconWidth = averageIconWidth + (bitmap.getWidth() - averageIconWidth) / iconSize;
}
if (!icons.contains(icon)) {
icons.add(icon);
loadIcon(icon);
} else {
Icon oldIcon = icons.get(icons.indexOf(icon));
if (!oldIcon.getBitmap().sameAs(icon.getBitmap())) {
throw new IconBitmapChangedException();
}
}
return icon;
}
void ensureIconLoaded(Marker marker, MapboxMap mapboxMap) {
Icon icon = marker.getIcon();
if (icon == null) {
icon = IconFactory.getInstance(nativeMapView.getContext()).defaultMarker();
marker.setIcon(icon);
}
if (!icons.contains(icon)) {
icons.add(icon);
loadIcon(icon);
} else {
Icon oldIcon = icons.get(icons.indexOf(icon));
if (!oldIcon.getBitmap().sameAs(icon.getBitmap())) {
throw new IconBitmapChangedException();
}
}
// this seems to be a costly operation according to the profiler so I'm trying to save some
// calls
Marker previousMarker =
marker.getId() != -1 ? (Marker) mapboxMap.getAnnotation(marker.getId()) : null;
if (previousMarker == null
|| previousMarker.getIcon() == null
|| previousMarker.getIcon() != marker.getIcon()) {
marker.setTopOffsetPixels(getTopOffsetPixelsForIcon(icon));
}
}
Icon loadIconForMarkerView(MarkerView marker) {
Icon icon = marker.getIcon();
int iconSize = icons.size() + 1;
if (icon == null) {
icon = IconFactory.getInstance(nativeMapView.getContext()).defaultMarkerView();
marker.setIcon(icon);
}
Bitmap bitmap = icon.getBitmap();
averageIconHeight = averageIconHeight + (bitmap.getHeight() - averageIconHeight) / iconSize;
averageIconWidth = averageIconWidth + (bitmap.getWidth() - averageIconWidth) / iconSize;
if (!icons.contains(icon)) {
icons.add(icon);
} else {
Icon oldIcon = icons.get(icons.indexOf(icon));
if (!oldIcon.getBitmap().sameAs(icon.getBitmap())) {
throw new IconBitmapChangedException();
}
}
return icon;
}
