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Code Issues Packages Projects Releases Wiki Activity

Refactoring

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This commit is contained in:
M66B
2019-10-23 18:26:23 +02:00
parent 7f54059aab
commit 8e9d6da937
4 changed files with 76 additions and 78 deletions
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75
app/src/main/java/eu/faircode/email/ImageHelper.java
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@@ -27,6 +27,7 @@ import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ImageDecoder;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
@@ -46,6 +47,7 @@ import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.core.graphics.ColorUtils;
import androidx.exifinterface.media.ExifInterface;
import androidx.preference.PreferenceManager;
import java.io.BufferedOutputStream;
@@ -266,7 +268,7 @@ class ImageHelper {
return gif;
}
} else {
Bitmap bm = Helper.decodeImage(attachment.getFile(context), scaleToPixels);
Bitmap bm = ImageHelper.decodeImage(attachment.getFile(context), scaleToPixels);
if (bm == null) {
Log.i("Image not decodable CID=" + cid);
Drawable d = res.getDrawable(R.drawable.baseline_broken_image_24, theme);
@@ -501,6 +503,77 @@ class ImageHelper {
return null;
}
static Bitmap decodeImage(File file, int scaleToPixels) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(file.getAbsolutePath(), options);
int factor = 1;
while (options.outWidth / factor > scaleToPixels)
factor *= 2;
Matrix rotation = null;
try {
rotation = getImageRotation(file);
} catch (IOException ex) {
Log.w(ex);
}
if (factor > 1 || rotation != null) {
Log.i("Decode image factor=" + factor);
options.inJustDecodeBounds = false;
options.inSampleSize = factor;
Bitmap scaled = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
if (scaled != null && rotation != null) {
Bitmap rotated = Bitmap.createBitmap(scaled, 0, 0, scaled.getWidth(), scaled.getHeight(), rotation, true);
scaled.recycle();
scaled = rotated;
}
return scaled;
}
return BitmapFactory.decodeFile(file.getAbsolutePath());
}
static Matrix getImageRotation(File file) throws IOException {
ExifInterface exif = new ExifInterface(file.getAbsolutePath());
int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED);
Matrix matrix = new Matrix();
switch (orientation) {
case ExifInterface.ORIENTATION_NORMAL:
return null;
case ExifInterface.ORIENTATION_FLIP_HORIZONTAL:
matrix.setScale(-1, 1);
return matrix;
case ExifInterface.ORIENTATION_FLIP_VERTICAL:
matrix.setRotate(180);
matrix.postScale(-1, 1);
return matrix;
case ExifInterface.ORIENTATION_TRANSPOSE:
matrix.setRotate(90);
matrix.postScale(-1, 1);
return matrix;
case ExifInterface.ORIENTATION_TRANSVERSE:
matrix.setRotate(-90);
matrix.postScale(-1, 1);
return matrix;
case ExifInterface.ORIENTATION_ROTATE_90:
matrix.setRotate(90);
return matrix;
case ExifInterface.ORIENTATION_ROTATE_180:
matrix.setRotate(180);
return matrix;
case ExifInterface.ORIENTATION_ROTATE_270:
matrix.setRotate(-90);
return matrix;
default:
return null;
}
}
static class AnnotatedSource {
private String source;
private int width = 0;