1 files changed, 18 insertions, 12 deletions
diff --git a/src/com/android/gallery3d/filtershow/filters/ImageFilterContrast.java b/src/com/android/gallery3d/filtershow/filters/ImageFilterContrast.java
index 70e3d8589..2f94e3d17 100644
--- a/src/com/android/gallery3d/filtershow/filters/ImageFilterContrast.java
+++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterContrast.java
@@ -20,30 +20,36 @@ import com.android.gallery3d.R;
 
 import android.graphics.Bitmap;
 
-public class ImageFilterContrast extends ImageFilter {
+public class ImageFilterContrast extends SimpleImageFilter {
 
     public ImageFilterContrast() {
         mName = "Contrast";
     }
 
-    @Override
-    public int getButtonId() {
-        return R.id.contrastButton;
-    }
-
-    @Override
-    public int getTextId() {
-        return R.string.contrast;
+    public FilterRepresentation getDefaultRepresentation() {
+        FilterBasicRepresentation representation =
+                (FilterBasicRepresentation) super.getDefaultRepresentation();
+        representation.setName("Contrast");
+        representation.setFilterClass(ImageFilterContrast.class);
+        representation.setTextId(R.string.contrast);
+        representation.setButtonId(R.id.contrastButton);
+
+        representation.setMinimum(-100);
+        representation.setMaximum(100);
+        representation.setDefaultValue(0);
+        return representation;
     }
 
     native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, float strength);
 
     @Override
-    public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) {
+    public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) {
+        if (getParameters() == null) {
+            return bitmap;
+        }
         int w = bitmap.getWidth();
         int h = bitmap.getHeight();
-        float p = mParameter;
-        float value = p;
+        float value = getParameters().getValue();
         nativeApplyFilter(bitmap, w, h, value);
         return bitmap;
     }