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package com.mapbox.mapboxsdk.annotations;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.annotation.DrawableRes;
import android.support.annotation.NonNull;
import android.support.v4.content.ContextCompat;
import android.util.DisplayMetrics;
import android.view.WindowManager;
import com.mapbox.mapboxsdk.R;
import com.mapbox.mapboxsdk.exceptions.TooManyIconsException;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
/**
* Factory for creating {@link Icon} objects.
* @see Icon
*/
public final class IconFactory {
private static final String ICON_ID_PREFIX = "com.mapbox.icons.icon_";
private Context mContext;
private static IconFactory sInstance;
private Icon mDefaultMarker;
private BitmapFactory.Options mOptions;
private int mNextId = 0;
public static synchronized IconFactory getInstance(@NonNull Context context) {
if (sInstance == null) {
sInstance = new IconFactory(context.getApplicationContext());
}
return sInstance;
}
private IconFactory(@NonNull Context context) {
mContext = context;
DisplayMetrics realMetrics = null;
DisplayMetrics metrics = new DisplayMetrics();
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
realMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getRealMetrics(realMetrics);
}
wm.getDefaultDisplay().getMetrics(metrics);
mOptions = new BitmapFactory.Options();
mOptions.inScaled = true;
mOptions.inDensity = DisplayMetrics.DENSITY_DEFAULT;
mOptions.inTargetDensity = metrics.densityDpi;
if (realMetrics != null) {
mOptions.inScreenDensity = realMetrics.densityDpi;
}
}
public Icon fromBitmap(@NonNull Bitmap bitmap) {
if (mNextId < 0) {
throw new TooManyIconsException();
}
String id = ICON_ID_PREFIX + ++mNextId;
return new Icon(id, bitmap);
}
public Icon fromDrawable(@NonNull Drawable drawable) {
int width = drawable.getIntrinsicWidth();
int height = drawable.getIntrinsicHeight();
return fromDrawable(drawable, width, height);
}
public Icon fromDrawable(@NonNull Drawable drawable, int width, int height) {
if ((width < 0) || (height < 0)) {
return null;
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
Rect temp = drawable.getBounds();
Rect bounds = new Rect(0, 0, width, height);
drawable.setBounds(bounds);
drawable.draw(canvas);
drawable.setBounds(temp);
return fromBitmap(bitmap);
}
public Icon fromResource(@DrawableRes int resourceId) {
Drawable drawable = ContextCompat.getDrawable(mContext, resourceId);
Bitmap bitmap;
if (drawable instanceof BitmapDrawable) {
BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
bitmap = bitmapDrawable.getBitmap();
} else {
if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888);
} else {
bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
}
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
}
return fromBitmap(bitmap);
}
public Icon defaultMarker() {
if (mDefaultMarker == null) {
mDefaultMarker = fromResource(R.drawable.default_marker);
}
return mDefaultMarker;
}
private Icon fromInputStream(@NonNull InputStream is) {
Bitmap bitmap = BitmapFactory.decodeStream(is, null, mOptions);
return fromBitmap(bitmap);
}
public Icon fromAsset(@NonNull String assetName) {
InputStream is;
try {
is = mContext.getAssets().open(assetName);
} catch (IOException e) {
return null;
}
return fromInputStream(is);
}
public Icon fromPath(@NonNull String absolutePath) {
Bitmap bitmap = BitmapFactory.decodeFile(absolutePath, mOptions);
return fromBitmap(bitmap);
}
public Icon fromFile(@NonNull String fileName) {
FileInputStream is;
try {
is = mContext.openFileInput(fileName);
} catch (FileNotFoundException e) {
return null;
}
return fromInputStream(is);
}
}
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