src/com/android/quicksearchbox/ui/CorpusView.java

/*
 * Copyright (C) 2009 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.quicksearchbox.ui;

import com.android.quicksearchbox.R;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.ViewDebug;
import android.widget.Checkable;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;


/**
 * A corpus in the corpus selection list.
 */
public class CorpusView extends RelativeLayout implements Checkable {

    private ImageView mIcon;
    private TextView mLabel;
    private boolean mChecked;

    private static final int[] CHECKED_STATE_SET = {
        android.R.attr.state_checked
    };

    public CorpusView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CorpusView(Context context) {
        super(context);
    }

    @Override
    protected void onFinishInflate() {
        super.onFinishInflate();
        mIcon = (ImageView) findViewById(R.id.source_icon);
        mLabel = (TextView) findViewById(R.id.source_label);
    }

    public void setLabel(CharSequence label) {
        mLabel.setText(label);
    }

    public void setIcon(Drawable icon) {
        mIcon.setImageDrawable(icon);
    }

    @ViewDebug.ExportedProperty
    public boolean isChecked() {
        return mChecked;
    }

    public void setChecked(boolean checked) {
        if (mChecked != checked) {
            mChecked = checked;
            refreshDrawableState();
        }
    }

    public void toggle() {
        setChecked(!mChecked);
    }

    @Override
    protected int[] onCreateDrawableState(int extraSpace) {
        final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
        if (isChecked()) {
            mergeDrawableStates(drawableState, CHECKED_STATE_SET);
        }
        return drawableState;
    }

}