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/*
* Copyright (C) 2014 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.camera.ui.focus;
import android.graphics.RectF;
/**
* Primary interface for interacting with the focus ring UI.
*/
public interface FocusRing {
/**
* Check the state of the passive focus ring animation.
*
* @return whether the passive focus animation is running.
*/
public boolean isPassiveFocusRunning();
/**
* Check the state of the active focus ring animation.
*
* @return whether the active focus animation is running.
*/
public boolean isActiveFocusRunning();
/**
* Start a passive focus animation.
*/
public void startPassiveFocus();
/**
* Start an active focus animation.
*/
public void startActiveFocus();
/**
* Stop any currently running focus animations.
*/
public void stopFocusAnimations();
/**
* Set the location of the focus ring animation center.
*/
public void setFocusLocation(float viewX, float viewY);
/**
* Set the location of the focus ring animation center.
*/
public void centerFocusLocation();
/**
* Set the target radius as a ratio of min to max visible radius
* which will internally convert and clamp the value to the
* correct pixel radius.
*/
public void setRadiusRatio(float ratio);
/**
* The physical size of preview can vary and does not map directly
* to the size of the view. This allows for conversions between view
* and preview space for values that are provided in preview space.
*/
void configurePreviewDimensions(RectF previewArea);
}
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