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package com.otaliastudios.cameraview.filter; |
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/** |
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* A special {@link Filter} that accepts two floats parameters. |
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* This is done by extending {@link OneParameterFilter}. |
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* |
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* The parameters will always be between 0F and 1F, so subclasses should |
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* map this range to their internal range if needed. |
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* |
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* A standardized range is useful for different applications. For example: |
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* - Filter parameters can be easily mapped to gestures since the range is fixed |
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* - {@link BaseFilter} can use this setters and getters to make a filter copy |
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*/ |
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public interface ThreeParameterFilter extends TwoParameterFilter { |
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/** |
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* Sets the third parameter. |
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* The value should always be between 0 and 1. |
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* |
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* @param value parameter |
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*/ |
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void setParameter3(float value); |
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/** |
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* Returns the third parameter. |
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* The returned value should always be between 0 and 1. |
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* |
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* @return parameter |
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*/ |
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float getParameter3(); |
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} |
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