/** Update the bookmark screen shot. */
private void updateBookmarkScreenShot() {
Cursor c = mDbAdapter.getBookmarkFromUrl(mWebView.getOriginalUrl(), mWebView.getLoadedUrl());
if ((c != null) && (c.moveToFirst())) {
long id = c.getLong(c.getColumnIndex(DbAdapter.BOOKMARKS_ROWID));
Bitmap bm = createScreenshot();
if (bm != null) {
mDbAdapter.updateBookmarkThumbnail(id, bm);
}
mDbAdapter.updateBookmarkCount(id);
}
c.close();
}
/**
* Create a screen shot for the current view.
*
* @return A bitmap of the screen shot.
*/
private Bitmap createScreenshot() {
Picture thumbnail = mWebView.capturePicture();
if (thumbnail == null) {
return null;
}
float density = mContext.getResources().getDisplayMetrics().density;
int thumbnailWidth = (int) (Constants.BOOKMARK_THUMBNAIL_WIDTH_FACTOR * density);
int thumbnailHeight = (int) (Constants.BOOKMARK_THUMBNAIL_HEIGHT_FACTOR * density);
Bitmap bm = Bitmap.createBitmap(thumbnailWidth, thumbnailHeight, Bitmap.Config.ARGB_4444);
Canvas canvas = new Canvas(bm);
if (thumbnail.getWidth() > 0) {
float scaleFactor = (float) thumbnailWidth / (float) thumbnail.getWidth();
canvas.scale(scaleFactor, scaleFactor);
}
thumbnail.draw(canvas);
return bm;
}