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package com.mapbox.mapboxsdk.maps;
import android.graphics.Bitmap;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.annotations.Icon;
import com.mapbox.mapboxsdk.annotations.IconFactory;
import com.mapbox.mapboxsdk.annotations.Marker;
import com.mapbox.mapboxsdk.annotations.MarkerView;
import com.mapbox.mapboxsdk.exceptions.IconBitmapChangedException;
import java.util.ArrayList;
import java.util.List;
import timber.log.Timber;
/**
* Responsible for managing icons added to the Map.
* <p>
* Maintains a {@link List} of {@link Icon} and is responsible for initialising default markers and
* setting up {@link MarkerView} annotation ghosting.
* </p>
* <p>
* Keep track of icons added and the resulting average icon size. This is used internally by our
* gestures detection to calculate the size of a touch target.
* </p>
*/
class IconManager {
private NativeMapView nativeMapView;
private List<Icon> icons;
private int averageIconHeight;
private int averageIconWidth;
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();
if (icon == null) {
// TODO replace with anchor implementation, we are faking an anchor by adding extra pixels and diving height by 2
// TODO we can move this code afterwards to getIcon as with MarkerView.getIcon
icon = loadDefaultIconForMarker(marker);
} else {
updateAverageIconSize(icon);
}
addIcon(icon);
return icon;
}
void loadIconForMarkerView(MarkerView marker) {
Icon icon = marker.getIcon();
Bitmap bitmap = icon.getBitmap();
updateAverageIconSize(bitmap);
addIcon(icon, false);
}
int getTopOffsetPixelsForIcon(Icon icon) {
return (int) (nativeMapView.getTopOffsetPixelsForAnnotationSymbol(icon.getId()) * nativeMapView.getPixelRatio());
}
int getAverageIconHeight() {
return averageIconHeight;
}
int getAverageIconWidth() {
return averageIconWidth;
}
private Icon loadDefaultIconForMarker(Marker marker) {
Icon icon = IconFactory.getInstance(Mapbox.getApplicationContext()).defaultMarker();
Bitmap bitmap = icon.getBitmap();
updateAverageIconSize(bitmap.getWidth(), bitmap.getHeight() / 2);
marker.setIcon(icon);
return icon;
}
private void addIcon(Icon icon) {
addIcon(icon, true);
}
private void addIcon(Icon icon, boolean addIconToMap) {
if (!icons.contains(icon)) {
icons.add(icon);
if (addIconToMap) {
loadIcon(icon);
}
} else {
validateIconChanged(icon);
}
}
private void updateAverageIconSize(Icon icon) {
updateAverageIconSize(icon.getBitmap());
}
private void updateAverageIconSize(Bitmap bitmap) {
updateAverageIconSize(bitmap.getWidth(), bitmap.getHeight());
}
private void updateAverageIconSize(int width, int height) {
int iconSize = icons.size() + 1;
averageIconHeight = averageIconHeight + (height - averageIconHeight) / iconSize;
averageIconWidth = averageIconWidth + (width - averageIconWidth) / iconSize;
Timber.e("OnUpdateAverageSizeIcon with: %s %s", width, height);
Timber.e("OnUpdateAverageSizeIcon now: %s %s", averageIconWidth, averageIconHeight);
}
private void loadIcon(Icon icon) {
Bitmap bitmap = icon.getBitmap();
nativeMapView.addAnnotationIcon(icon.getId(),
bitmap.getWidth(),
bitmap.getHeight(),
icon.getScale(),
icon.toBytes());
}
void reloadIcons() {
for (Icon icon : icons) {
loadIcon(icon);
}
}
private void validateIconChanged(Icon icon) {
Icon oldIcon = icons.get(icons.indexOf(icon));
if (!oldIcon.getBitmap().sameAs(icon.getBitmap())) {
throw new IconBitmapChangedException();
}
}
void ensureIconLoaded(Marker marker, MapboxMap mapboxMap) {
Icon icon = marker.getIcon();
if (icon == null) {
icon = loadDefaultIconForMarker(marker);
}
addIcon(icon);
setTopOffsetPixels(marker, mapboxMap, icon);
}
private void setTopOffsetPixels(Marker marker, MapboxMap mapboxMap, Icon icon) {
// 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));
}
}
}
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