src/com/android/camera/ui/FocusIndicatorView.java

/*
 * Copyright (C) 2010 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;

import com.android.camera.R;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;

// A view that indicates the focus area or the metering area.
public class FocusIndicatorView extends View implements FocusIndicator {
    public FocusIndicatorView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    private void setDrawable(int resid) {
        setBackgroundDrawable(getResources().getDrawable(resid));
    }

    @Override
    public void showStart() {
        setDrawable(R.drawable.ic_focus_focusing);
    }

    @Override
    public void showSuccess() {
        setDrawable(R.drawable.ic_focus_focused);
    }

    @Override
    public void showFail() {
        setDrawable(R.drawable.ic_focus_failed);
    }

    @Override
    public void clear() {
        setBackgroundDrawable(null);
    }
}