Refactor filters parameters

- introduce FilterRepresentations
- change filters lifecycle

Change-Id: I9416fca47a334d532a347cd5577795738c870933

1 files changed, 50 insertions, 0 deletions

diff --git a/src/com/android/gallery3d/filtershow/filters/SimpleImageFilter.java b/src/com/android/gallery3d/filtershow/filters/SimpleImageFilter.java
new file mode 100644
index 000000000..8b6f3da5e
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/filters/SimpleImageFilter.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.gallery3d.filtershow.filters;
+
+import android.graphics.Bitmap;
+
+public class SimpleImageFilter extends ImageFilter {
+
+    private FilterBasicRepresentation mParameters;
+
+    public FilterRepresentation getDefaultRepresentation() {
+        FilterRepresentation representation = new FilterBasicRepresentation("Default", 0, 50, 100);
+        representation.setShowParameterValue(true);
+        return representation;
+    }
+
+    public void useRepresentation(FilterRepresentation representation) {
+        FilterBasicRepresentation parameters = (FilterBasicRepresentation) representation;
+        mParameters = parameters;
+    }
+
+    public boolean hasDefaultRepresentation() {
+        return true;
+    }
+
+    public FilterBasicRepresentation getParameters() {
+        return mParameters;
+    }
+
+    @Override
+    public Bitmap iconApply(Bitmap bitmap, float scaleFactor, boolean highQuality) {
+        FilterRepresentation representation = getDefaultRepresentation();
+        this.useRepresentation(representation);
+        return apply(bitmap, scaleFactor, highQuality);
+    }
+}