android: allow to set a size of the thumbnail

Change-Id: Ida8bbd74893f59c3737d28c264e7ed24b231e6ac

android/experimental/LOAndroid3/src/java/org/libreoffice/LOKitThread.java

@@ -41,7 +41,7 @@ public class LOKitThread extends Thread {
     }
 
     private void refresh() {
-        Bitmap bitmap = mTileProvider.thumbnail();
+        Bitmap bitmap = mTileProvider.thumbnail(1000);
         if (bitmap != null) {
             mApplication.getLayerController().getView().changeCheckerboardBitmap(bitmap, mTileProvider.getPageWidth(), mTileProvider.getPageHeight());
         }

android/experimental/LOAndroid3/src/java/org/libreoffice/LOKitTileProvider.java

@@ -129,17 +129,17 @@ public class LOKitTileProvider implements TileProvider {
     }
 
     @Override
-    public Bitmap thumbnail() {
+    public Bitmap thumbnail(int size) {
         int widthPixel = getPageWidth();
         int heightPixel = getPageHeight();
 
         if (widthPixel > heightPixel) {
             double ratio = heightPixel / (double) widthPixel;
-            widthPixel = 1000;
+            widthPixel = size;
             heightPixel = (int) (widthPixel * ratio);
         } else {
             double ratio = widthPixel / (double) heightPixel;
-            heightPixel = 1000;
+            heightPixel = size;
             widthPixel = (int) (heightPixel * ratio);
         }
 

android/experimental/LOAndroid3/src/java/org/libreoffice/MockTileProvider.java

@@ -59,7 +59,7 @@ public class MockTileProvider implements TileProvider {
     }
 
     @Override
-    public Bitmap thumbnail() {
+    public Bitmap thumbnail(int size) {
         return layerController.getDrawable("dummy_page");
     }
 

android/experimental/LOAndroid3/src/java/org/libreoffice/TileProvider.java

@@ -16,7 +16,7 @@ public interface TileProvider {
 
     void changePart(int partIndex);
 
-    Bitmap thumbnail();
+    Bitmap thumbnail(int size);
 
     void close();
 }