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/*
* Copyright (C) 2012 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;
import android.graphics.Matrix;
import com.android.gallery3d.R;
import com.android.gallery3d.filtershow.editors.BasicEditor;
import com.android.gallery3d.filtershow.imageshow.GeometryMetadata;
import com.android.gallery3d.filtershow.presets.ImagePreset;
public abstract class ImageFilter implements Cloneable {
private ImagePreset mImagePreset;
protected String mName = "Original";
private final String LOGTAG = "ImageFilter";
public void setName(String name) {
mName = name;
}
public String getName() {
return mName;
}
public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) {
// do nothing here, subclasses will implement filtering here
return bitmap;
}
/**
* Called on small bitmaps to create button icons for each filter.
* Override this to provide filter-specific button icons.
*/
public Bitmap iconApply(Bitmap bitmap, float scaleFactor, int quality) {
return apply(bitmap, scaleFactor, quality);
}
public ImagePreset getImagePreset() {
return mImagePreset;
}
public void setImagePreset(ImagePreset imagePreset) {
mImagePreset = imagePreset;
}
public abstract void useRepresentation(FilterRepresentation representation);
native protected void nativeApplyGradientFilter(Bitmap bitmap, int w, int h,
int[] redGradient, int[] greenGradient, int[] blueGradient);
public FilterRepresentation getDefaultRepresentation() {
return null;
}
protected Matrix getOriginalToScreenMatrix(int w, int h) {
GeometryMetadata geo = getImagePreset().mGeoData;
Matrix originalToScreen = geo.getOriginalToScreen(true,
getImagePreset().getImageLoader().getOriginalBounds().width(),
getImagePreset().getImageLoader().getOriginalBounds().height(),
w, h);
return originalToScreen;
}
}
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