Merge "Use non-greedy view to draw background in landscape time picker" into mnc-dev

/*

 * Copyright (C) 2015 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.internal.widget;

import android.content.Context;

import android.util.AttributeSet;

import android.view.View;

/**

 * Implementation of {@link android.widget.Space} that uses normal View drawing

 * rather than a no-op. Useful for dialogs and other places where the base View

 * class is too greedy when measured with AT_MOST.

 */

public final class DrawingSpace extends View {

    public DrawingSpace(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {

        super(context, attrs, defStyleAttr, defStyleRes);

    }

    public DrawingSpace(Context context, AttributeSet attrs, int defStyleAttr) {

        this(context, attrs, defStyleAttr, 0);

    }

    public DrawingSpace(Context context, AttributeSet attrs) {

        this(context, attrs, 0);

    }

    public DrawingSpace(Context context) {

        this(context, null);

    }

    /**

     * Compare to: {@link View#getDefaultSize(int, int)}

     * <p>

     * If mode is AT_MOST, return the child size instead of the parent size

     * (unless it is too big).

     */

    private static int getDefaultSizeNonGreedy(int size, int measureSpec) {

        int result = size;

        int specMode = MeasureSpec.getMode(measureSpec);

        int specSize = MeasureSpec.getSize(measureSpec);

        switch (specMode) {

            case MeasureSpec.UNSPECIFIED:

                result = size;

                break;

            case MeasureSpec.AT_MOST:

                result = Math.min(size, specSize);

                break;

            case MeasureSpec.EXACTLY:

                result = specSize;

                break;

        }

        return result;

    }

    @Override

    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

        setMeasuredDimension(

                getDefaultSizeNonGreedy(getSuggestedMinimumWidth(), widthMeasureSpec),

                getDefaultSizeNonGreedy(getSuggestedMinimumHeight(), heightMeasureSpec));

    }

}

            android:layoutDirection="ltr">

    <!-- Provides a background for the time layout that extends into the button bar area. -->

    <View

    <com.android.internal.widget.DrawingSpace

        android:id="@+id/time_header"

        android:layout_width="0dp"

        android:layout_height="wrap_content"