ImageFilter.java revision 4e6c07b71b269ee3fe7f6fa455bc540238df9ded 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.gallery3d.filtershow.filters;
18
19import android.graphics.Bitmap;
20
21import com.android.gallery3d.R;
22import com.android.gallery3d.filtershow.editors.BasicEditor;
23import com.android.gallery3d.filtershow.presets.ImagePreset;
24
25public abstract class ImageFilter implements Cloneable {
26
27    private ImagePreset mImagePreset;
28
29    protected String mName = "Original";
30    private final String LOGTAG = "ImageFilter";
31
32    public void setName(String name) {
33        mName = name;
34    }
35
36    public String getName() {
37        return mName;
38    }
39
40    public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) {
41        // do nothing here, subclasses will implement filtering here
42        return bitmap;
43    }
44
45    /**
46     * Called on small bitmaps to create button icons for each filter.
47     * Override this to provide filter-specific button icons.
48     */
49    public Bitmap iconApply(Bitmap bitmap, float scaleFactor, int quality) {
50        return apply(bitmap, scaleFactor, quality);
51    }
52
53    public ImagePreset getImagePreset() {
54        return mImagePreset;
55    }
56
57    public void setImagePreset(ImagePreset imagePreset) {
58        mImagePreset = imagePreset;
59    }
60
61    public abstract void useRepresentation(FilterRepresentation representation);
62
63    native protected void nativeApplyGradientFilter(Bitmap bitmap, int w, int h,
64            int[] redGradient, int[] greenGradient, int[] blueGradient);
65
66    public FilterRepresentation getDefaultRepresentation() {
67        return null;
68    }
69
70}
71