Fix a problem with the "scanning card" dialog popping up when quickly

[android-x86/packages-apps-Music.git] / src / com / android / music / MusicUtils.java

diff --git a/src/com/android/music/MusicUtils.java b/src/com/android/music/MusicUtils.java
index a67db7d..ed9a3bf 100644 (file)
--- a/src/com/android/music/MusicUtils.java
+++ b/src/com/android/music/MusicUtils.java
@@ -32,10 +32,13 @@ import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
 import android.graphics.ColorFilter;
+import android.graphics.ColorMatrix;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.Matrix;
+import android.graphics.Paint;
 import android.graphics.PixelFormat;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
-import android.media.MediaFile;
 import android.net.Uri;
 import android.os.Environment;
 import android.os.ParcelFileDescriptor;
@@ -597,6 +600,13 @@ public class MusicUtils {
     private static String mLastSdStatus;
 
     public static void displayDatabaseError(Activity a) {
+        if (a.isFinishing()) {
+            // When switching tabs really fast, we can end up with a null
+            // cursor (not sure why), which will bring us here.
+            // Don't bother showing an error message in that case.
+            return;
+        }
+
         String status = Environment.getExternalStorageState();
         int title = R.string.sdcard_error_title;
         int message = R.string.sdcard_error_message;
@@ -903,11 +913,20 @@ public class MusicUtils {
         }
         return null;
     }
-    
+
     /** Get album art for specified album. You should not pass in the album id
      * for the "unknown" album here (use -1 instead)
+     * This method always returns the default album art icon when no album art is found.
      */
     public static Bitmap getArtwork(Context context, long song_id, long album_id) {
+        return getArtwork(context, song_id, album_id, true);
+    }
+
+    /** Get album art for specified album. You should not pass in the album id
+     * for the "unknown" album here (use -1 instead)
+     */
+    public static Bitmap getArtwork(Context context, long song_id, long album_id,
+            boolean allowdefault) {
 
         if (album_id < 0) {
             // This is something that is not in the database, so get the album art directly
@@ -918,7 +937,10 @@ public class MusicUtils {
                     return bm;
                 }
             }
-            return getDefaultArtwork(context);
+            if (allowdefault) {
+                return getDefaultArtwork(context);
+            }
+            return null;
         }
 
         ContentResolver res = context.getContentResolver();
@@ -935,11 +957,11 @@ public class MusicUtils {
                 if (bm != null) {
                     if (bm.getConfig() == null) {
                         bm = bm.copy(Bitmap.Config.RGB_565, false);
-                        if (bm == null) {
+                        if (bm == null && allowdefault) {
                             return getDefaultArtwork(context);
                         }
                     }
-                } else {
+                } else if (allowdefault) {
                     bm = getDefaultArtwork(context);
                 }
                 return bm;
@@ -1054,7 +1076,7 @@ public class MusicUtils {
     
     static int sActiveTabIndex = -1;
     
-    static void updateButtonBar(Activity a, int highlight) {
+    static boolean updateButtonBar(Activity a, int highlight) {
         final TabWidget ll = (TabWidget) a.findViewById(R.id.buttonbar);
         boolean withtabs = false;
         Intent intent = a.getIntent();
@@ -1064,7 +1086,7 @@ public class MusicUtils {
         
         if (highlight == 0 || !withtabs) {
             ll.setVisibility(View.GONE);
-            return;
+            return withtabs;
         } else if (withtabs) {
             ll.setVisibility(View.VISIBLE);
         }
@@ -1097,6 +1119,7 @@ public class MusicUtils {
                     processTabClick((Activity)ll.getContext(), v, ll.getChildAt(sActiveTabIndex).getId());
                 }});
         }
+        return withtabs;
     }
 
     static void processTabClick(Activity a, View v, int current) {
@@ -1159,7 +1182,7 @@ public class MusicUtils {
                 TextView artist = (TextView) nowPlayingView.findViewById(R.id.artist);
                 title.setText(MusicUtils.sService.getTrackName());
                 String artistName = MusicUtils.sService.getArtistName();
-                if (MediaFile.UNKNOWN_STRING.equals(artistName)) {
+                if (MediaStore.UNKNOWN_STRING.equals(artistName)) {
                     artistName = a.getString(R.string.unknown_artist_name);
                 }
                 artist.setText(artistName);
@@ -1179,4 +1202,52 @@ public class MusicUtils {
         nowPlayingView.setVisibility(View.GONE);
     }
 
+    static void setBackground(View v, Bitmap bm) {
+
+        if (bm == null) {
+            v.setBackgroundResource(0);
+            return;
+        }
+
+        int vwidth = v.getWidth();
+        int vheight = v.getHeight();
+        int bwidth = bm.getWidth();
+        int bheight = bm.getHeight();
+        float scalex = (float) vwidth / bwidth;
+        float scaley = (float) vheight / bheight;
+        float scale = Math.max(scalex, scaley) * 1.3f;
+
+        Bitmap.Config config = Bitmap.Config.ARGB_8888;
+        Bitmap bg = Bitmap.createBitmap(vwidth, vheight, config);
+        Canvas c = new Canvas(bg);
+        Paint paint = new Paint();
+        paint.setAntiAlias(true);
+        paint.setFilterBitmap(true);
+        ColorMatrix greymatrix = new ColorMatrix();
+        greymatrix.setSaturation(0);
+        ColorMatrix darkmatrix = new ColorMatrix();
+        darkmatrix.setScale(.3f, .3f, .3f, 1.0f);
+        greymatrix.postConcat(darkmatrix);
+        ColorFilter filter = new ColorMatrixColorFilter(greymatrix);
+        paint.setColorFilter(filter);
+        Matrix matrix = new Matrix();
+        matrix.setTranslate(-bwidth/2, -bheight/2); // move bitmap center to origin
+        matrix.postRotate(10);
+        matrix.postScale(scale, scale);
+        matrix.postTranslate(vwidth/2, vheight/2);  // Move bitmap center to view center
+        c.drawBitmap(bm, matrix, paint);
+        v.setBackgroundDrawable(new BitmapDrawable(bg));
+    }
+
+    static int getCardId(Context context) {
+        ContentResolver res = context.getContentResolver();
+        Cursor c = res.query(Uri.parse("content://media/external/fs_id"), null, null, null, null);
+        int id = -1;
+        if (c != null) {
+            c.moveToFirst();
+            id = c.getInt(0);
+            c.close();
+        }
+        return id;
+    }
 }