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This commit is contained in:
tobiasKaminsky 2015-07-30 21:38:13 +02:00
parent e14533e387
commit 689199a0b5
1 changed files with 21 additions and 5 deletions
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26
src/com/owncloud/android/datamodel/ThumbnailsCacheManager.java
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@ -379,10 +379,10 @@ public class ThumbnailsCacheManager {
}
public static Bitmap addVideoOverlay(Bitmap thumbnail){
Bitmap bitmap2 = BitmapFactory.decodeResource(MainApp.getAppContext().getResources(),
R.drawable.view_play);
Bitmap playButton = BitmapFactory.decodeResource(MainApp.getAppContext().getResources(),
R.drawable.view_play);
Bitmap resized = Bitmap.createScaledBitmap(bitmap2,
Bitmap resizedPlayButton = Bitmap.createScaledBitmap(playButton,
(int) (thumbnail.getWidth() * 0.6),
(int) (thumbnail.getHeight() * 0.6), true);
@ -392,13 +392,29 @@ public class ThumbnailsCacheManager {
Canvas c = new Canvas(resultBitmap);
// compute visual center of play button, according to resized image
int x1 = resizedPlayButton.getWidth();
int y1 = resizedPlayButton.getHeight() / 2;
int x2 = 0;
int y2 = resizedPlayButton.getWidth();
int x3 = 0;
int y3 = 0;
double ym = ( ((Math.pow(x3,2) - Math.pow(x1,2) + Math.pow(y3,2) - Math.pow(y1,2)) * (x2 - x1)) - (Math.pow(x2,2) - Math.pow(x1,2) + Math.pow(y2,2) - Math.pow(y1,2)) * (x3 - x1) ) / (2 * ( ((y3 - y1) * (x2 - x1)) - ((y2 - y1) * (x3 - x1)) ));
double xm = ( (Math.pow(x2,2) - Math.pow(x1,2)) + (Math.pow(y2,2) - Math.pow(y1,2)) - (2*ym*(y2 - y1)) ) / (2*(x2 - x1));
// offset to top left
double ox = - xm;
double oy = thumbnail.getHeight() - ym;
c.drawBitmap(thumbnail, 0, 0, null);
Paint p = new Paint();
p.setAlpha(230);
c.drawBitmap(resized, (thumbnail.getWidth() - resized.getWidth()) / 2,
(thumbnail.getHeight() - resized.getHeight()) / 2, p);
c.drawBitmap(resizedPlayButton, (float) ((thumbnail.getWidth() / 2) - ox),
(float) ((thumbnail.getHeight() / 2) + ym), p);
return resultBitmap;
}