X-Git-Url: http://git.linex4red.de/pub/Android/ownCloud.git/blobdiff_plain/51a04aa54111ce3c7b45c5ab6f073a25b3b4d985..5c9c34f1d2554034bd7cd839121446b7d6f6c9f0:/src/com/owncloud/android/datamodel/ThumbnailsCacheManager.java

diff --git a/src/com/owncloud/android/datamodel/ThumbnailsCacheManager.java b/src/com/owncloud/android/datamodel/ThumbnailsCacheManager.java
index 0e59a834..dd0a2cdc 100644
--- a/src/com/owncloud/android/datamodel/ThumbnailsCacheManager.java
+++ b/src/com/owncloud/android/datamodel/ThumbnailsCacheManager.java
@@ -29,15 +29,19 @@ import org.apache.commons.httpclient.HttpStatus;
 import org.apache.commons.httpclient.methods.GetMethod;
 
 import android.accounts.Account;
+import android.content.SharedPreferences;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.Bitmap.CompressFormat;
 import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
 import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.media.ThumbnailUtils;
 import android.net.Uri;
 import android.os.AsyncTask;
+import android.preference.PreferenceManager;
 import android.widget.ImageView;
 
 import com.owncloud.android.MainApp;
@@ -60,20 +64,20 @@ public class ThumbnailsCacheManager {
     private static final String TAG = ThumbnailsCacheManager.class.getSimpleName();
     
     private static final String CACHE_FOLDER = "thumbnailCache";
+    private static final Integer CACHE_SIZE_MB = 10;
 
     private static final Object mThumbnailsDiskCacheLock = new Object();
     private static DiskLruImageCache mThumbnailCache = null;
     private static boolean mThumbnailCacheStarting = true;
     
-    private static final int DISK_CACHE_SIZE = 1024 * 1024 * 10; // 10MB
     private static final CompressFormat mCompressFormat = CompressFormat.JPEG;
     private static final int mCompressQuality = 70;
     private static OwnCloudClient mClient = null;
 
     public static Bitmap mDefaultImg = 
             BitmapFactory.decodeResource(
-                    MainApp.getAppContext().getResources(), 
-                    DisplayUtils.getFileTypeIconId("image/png", "default.png")
+                    MainApp.getAppContext().getResources(),
+                    R.drawable.file_image
             );
 
     
@@ -86,6 +90,18 @@ public class ThumbnailsCacheManager {
 
                 if (mThumbnailCache == null) {
                     try {
+                        SharedPreferences appPrefs =
+                                PreferenceManager.getDefaultSharedPreferences(MainApp.getAppContext());
+                        // due to backward compatibility
+                        Integer cacheSize = CACHE_SIZE_MB * 1024 * 1024;
+                        try {
+                            cacheSize = appPrefs.getInt("pref_cache_size", cacheSize);
+                        } catch (ClassCastException e) {
+                            String temp = appPrefs.getString("pref_cache_size",
+                                    cacheSize.toString());
+                            cacheSize = Integer.decode(temp) * 1024 * 1024;
+                        }
+
                         // Check if media is mounted or storage is built-in, if so, 
                         // try and use external cache dir; otherwise use internal cache dir
                         final String cachePath = 
@@ -95,7 +111,7 @@ public class ThumbnailsCacheManager {
                         final File diskCacheDir = new File(cachePath);
                         mThumbnailCache = new DiskLruImageCache(
                                 diskCacheDir, 
-                                DISK_CACHE_SIZE, 
+                                cacheSize,
                                 mCompressFormat, 
                                 mCompressQuality
                         );
@@ -138,6 +154,31 @@ public class ThumbnailsCacheManager {
         return null;
     }
 
+    /**
+     * Sets max size of cache
+     * @param maxSize in MB
+     * @return
+     */
+    public static boolean setMaxSize(long maxSize){
+        if (mThumbnailCache != null){
+            mThumbnailCache.setMaxSize(maxSize * 1024 * 1024);
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Shows max cache size
+     * @return max cache size in MB.
+     */
+    public static long getMaxSize(){
+        if (mThumbnailCache == null) {
+            new ThumbnailsCacheManager.InitDiskCacheTask().execute();
+        }
+        return mThumbnailCache.getMaxSize() / 1024 / 1024;
+    }
+
     public static class ThumbnailGenerationTask extends AsyncTask<Object, Void, Bitmap> {
         private final WeakReference<ImageView> mImageViewReference;
         private static Account mAccount;
@@ -193,10 +234,6 @@ public class ThumbnailsCacheManager {
         }
 
         protected void onPostExecute(Bitmap bitmap){
-            if (isCancelled()) {
-                bitmap = null;
-            }
-
             if (bitmap != null) {
                 final ImageView imageView = mImageViewReference.get();
                 final ThumbnailGenerationTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
@@ -259,10 +296,16 @@ public class ThumbnailsCacheManager {
                 int px = getThumbnailDimension();
 
                 if (file.isDown()) {
-                    Bitmap bitmap = BitmapUtils.decodeSampledBitmapFromFile(
+                    Bitmap temp = BitmapUtils.decodeSampledBitmapFromFile(
                             file.getStoragePath(), px, px);
+                    Bitmap bitmap = ThumbnailUtils.extractThumbnail(temp, px, px);
 
                     if (bitmap != null) {
+                        // Handle PNG
+                        if (file.getMimetype().equalsIgnoreCase("image/png")) {
+                            bitmap = handlePNG(bitmap, px);
+                        }
+
                         thumbnail = addThumbnailToCache(imageKey, bitmap, file.getStoragePath(), px);
 
                         file.setNeedsUpdateThumbnail(false);
@@ -282,13 +325,15 @@ public class ThumbnailsCacheManager {
                                 GetMethod get = new GetMethod(uri);
                                 int status = mClient.executeMethod(get);
                                 if (status == HttpStatus.SC_OK) {
-//                                    byte[] bytes = get.getResponseBody();
-//                                    Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0,
-//                                            bytes.length);
                                     InputStream inputStream = get.getResponseBodyAsStream();
                                     Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
                                     thumbnail = ThumbnailUtils.extractThumbnail(bitmap, px, px);
 
+                                    // Handle PNG
+                                    if (file.getMimetype().equalsIgnoreCase("image/png")) {
+                                        thumbnail = handlePNG(thumbnail, px);
+                                    }
+
                                     // Add thumbnail to cache
                                     if (thumbnail != null) {
                                         addBitmapToCache(imageKey, thumbnail);
@@ -308,6 +353,19 @@ public class ThumbnailsCacheManager {
 
         }
 
+        private Bitmap handlePNG(Bitmap bitmap, int px){
+            Bitmap resultBitmap = Bitmap.createBitmap(px,
+                    px,
+                    Bitmap.Config.ARGB_8888);
+            Canvas c = new Canvas(resultBitmap);
+
+            c.drawColor(MainApp.getAppContext().getResources().
+                    getColor(R.color.background_color));
+            c.drawBitmap(bitmap, 0, 0, null);
+
+            return resultBitmap;
+        }
+
         private Bitmap doFileInBackground() {
             File file = (File)mFile;
 
@@ -342,6 +400,7 @@ public class ThumbnailsCacheManager {
             if (bitmapData == null || bitmapData != file) {
                 // Cancel previous task
                 bitmapWorkerTask.cancel(true);
+                Log_OC.v(TAG, "Cancelled generation of thumbnail for a reused imageView");
             } else {
                 // The same work is already in progress
                 return false;