mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-06-21 12:30:23 +02:00
c1fd0b77ad
Co-authored-by: hrglpfrmpf <hrglpfrmpf@web.de> Reviewed-on: https://codeberg.org/Freeyourgadget/Gadgetbridge/pulls/2831 Co-authored-by: hrglpfrmpf <hrglpfrmpf@noreply.codeberg.org> Co-committed-by: hrglpfrmpf <hrglpfrmpf@noreply.codeberg.org>
72 lines
2.6 KiB
Java
72 lines
2.6 KiB
Java
/* Copyright (C) 2021 Frank Ertl
|
|
|
|
This file is part of Gadgetbridge.
|
|
|
|
Gadgetbridge is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published
|
|
by the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Gadgetbridge is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
package nodomain.freeyourgadget.gadgetbridge.service.devices.withingssteelhr;
|
|
|
|
import android.graphics.Bitmap;
|
|
import android.graphics.Color;
|
|
import android.graphics.drawable.Drawable;
|
|
import android.graphics.drawable.Icon;
|
|
|
|
import nodomain.freeyourgadget.gadgetbridge.util.BitmapUtil;
|
|
|
|
public class IconHelper {
|
|
|
|
public static byte[] getIconBytesFromDrawable(Drawable drawable) {
|
|
Bitmap bitmap = BitmapUtil.toBitmap(drawable);
|
|
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, 22, 24, true);
|
|
int size = scaledBitmap.getRowBytes() * scaledBitmap.getHeight();
|
|
return toByteArray(scaledBitmap);
|
|
}
|
|
|
|
public static byte[] toByteArray(Bitmap bitmap) {
|
|
int width = bitmap.getWidth();
|
|
int height = bitmap.getHeight();
|
|
int bytesPerColumn = getBytesPerColumn(height);
|
|
byte[] rawData = new byte[bytesPerColumn * width];
|
|
for (int col = 0; col < width; col++) {
|
|
for (int row = 0; row < height; row++) {
|
|
int pixel = bitmap.getPixel(col, row);
|
|
if (shouldPixelbeAdded(pixel)) {
|
|
int bitIndex = bytesPerColumn * col + row / 8;
|
|
rawData[bitIndex] = setBit(rawData[bitIndex], row);
|
|
}
|
|
}
|
|
}
|
|
|
|
return rawData;
|
|
}
|
|
|
|
private static boolean shouldPixelbeAdded(int pixel) {
|
|
double luma = ((Color.red(pixel) * 0.2126d) + (Color.green(pixel) * 0.7152d) + (Color.blue(pixel) * 0.0722d)) * (Color.alpha(pixel) / 255.0f);
|
|
return luma > 0;
|
|
}
|
|
|
|
private static byte setBit(byte bits, int position) {
|
|
bits |= 1 << (position % 8);
|
|
return bits;
|
|
}
|
|
|
|
private static int getBytesPerColumn(int rowCount) {
|
|
int result = (int) rowCount / 8;
|
|
if (result * 8 < rowCount) {
|
|
result++;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
}
|