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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 com.android.gallery3d.R;
import com.android.gallery3d.filtershow.presets.ImagePreset;
public class ImageFilter implements Cloneable {
public static int DEFAULT_MAX_PARAMETER = 100;
public static int DEFAULT_MIN_PARAMETER = -100;
public static int DEFAULT_INITIAL_PARAMETER = 0;
protected int mMaxParameter = DEFAULT_MAX_PARAMETER;
protected int mMinParameter = DEFAULT_MIN_PARAMETER;
protected int mPreviewParameter = mMaxParameter;
protected int mDefaultParameter = DEFAULT_INITIAL_PARAMETER;
protected int mParameter = DEFAULT_INITIAL_PARAMETER;
private ImagePreset mImagePreset;
protected String mName = "Original";
private final String LOGTAG = "ImageFilter";
public static final byte TYPE_BORDER = 1;
public static final byte TYPE_FX = 2;
public static final byte TYPE_WBALANCE = 3;
public static final byte TYPE_VIGNETTE = 4;
public static final byte TYPE_NORMAL = 5;
public static final byte TYPE_TINYPLANET = 6;
private byte filterType = TYPE_NORMAL;
public byte getFilterType() {
return filterType;
}
protected void setFilterType(byte type) {
filterType = type;
}
public int getButtonId() {
return 0;
}
public int getTextId() {
return 0;
}
public int getOverlayBitmaps() {
return 0;
}
public int getEditingViewId() {
return R.id.imageShow;
}
public boolean showEditingControls() {
return true;
}
public boolean showParameterValue() {
return true;
}
@Override
public ImageFilter clone() throws CloneNotSupportedException {
ImageFilter filter = (ImageFilter) super.clone();
filter.setName(getName());
filter.setParameter(getParameter());
filter.setFilterType(filterType);
filter.mMaxParameter = mMaxParameter;
filter.mMinParameter = mMinParameter;
filter.mImagePreset = mImagePreset;
filter.mDefaultParameter = mDefaultParameter;
filter.mPreviewParameter = mPreviewParameter;
return filter;
}
public void reset() {
setParameter(mDefaultParameter);
}
public boolean isNil() {
if (mParameter == mDefaultParameter) {
return true;
}
return false;
}
public void setName(String name) {
mName = name;
}
public String getName() {
return mName;
}
public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) {
// do nothing here, subclasses will implement filtering here
return bitmap;
}
public int getParameter() {
return mParameter;
}
public void setParameter(int value) {
mParameter = value;
}
/**
* The maximum allowed value (inclusive)
* @return maximum value allowed as input to this filter
*/
public int getMaxParameter() {
return mMaxParameter;
}
/**
* The parameter value to be used in previews.
* @return parameter value to be used to preview the filter
*/
public int getPreviewParameter() {
return mPreviewParameter;
}
/**
* The minimum allowed value (inclusive)
* @return minimum value allowed as input to this filter
*/
public int getMinParameter() {
return mMinParameter;
}
/**
* Returns the default value returned by this filter.
* @return default value
*/
public int getDefaultParameter() {
return mDefaultParameter;
}
public ImagePreset getImagePreset() {
return mImagePreset;
}
public void setImagePreset(ImagePreset mPreset) {
this.mImagePreset = mPreset;
}
public boolean same(ImageFilter filter) {
if (filter == null) {
return false;
}
if (!filter.getName().equalsIgnoreCase(getName())) {
return false;
}
return true;
}
native protected void nativeApplyGradientFilter(Bitmap bitmap, int w, int h,
int[] redGradient, int[] greenGradient, int[] blueGradient);
}
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