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/*
* Copyright (C) 2014 Grantland Chew
*
* 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 me.grantland.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.TextView;
import com.android.dialer.R;
import java.util.WeakHashMap;
/**
* A {@link ViewGroup} that re-sizes the text of it's children to be no larger than the width of the
* view.
*
* @attr ref R.styleable.AutofitTextView_sizeToFit
* @attr ref R.styleable.AutofitTextView_minTextSize
* @attr ref R.styleable.AutofitTextView_precision
*/
public class AutofitLayout extends FrameLayout {
private boolean mEnabled;
private float mMinTextSize;
private float mPrecision;
private WeakHashMap<View, AutofitHelper> mHelpers = new WeakHashMap<View, AutofitHelper>();
public AutofitLayout(Context context) {
super(context);
init(context, null, 0);
}
public AutofitLayout(Context context, AttributeSet attrs) {
super(context, attrs);
init(context, attrs, 0);
}
public AutofitLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context, attrs, defStyle);
}
private void init(Context context, AttributeSet attrs, int defStyle) {
boolean sizeToFit = true;
int minTextSize = -1;
float precision = -1;
if (attrs != null) {
TypedArray ta = context.obtainStyledAttributes(
attrs,
R.styleable.AutofitTextView,
defStyle,
0);
sizeToFit = ta.getBoolean(R.styleable.AutofitTextView_sizeToFit, sizeToFit);
minTextSize = ta.getDimensionPixelSize(R.styleable.AutofitTextView_minTextSize,
minTextSize);
precision = ta.getFloat(R.styleable.AutofitTextView_precision, precision);
ta.recycle();
}
mEnabled = sizeToFit;
mMinTextSize = minTextSize;
mPrecision = precision;
}
@Override
public void addView(View child, int index, ViewGroup.LayoutParams params) {
super.addView(child, index, params);
TextView textView = (TextView) child;
AutofitHelper helper = AutofitHelper.create(textView)
.setEnabled(mEnabled);
if (mPrecision > 0) {
helper.setPrecision(mPrecision);
}
if (mMinTextSize > 0) {
helper.setMinTextSize(TypedValue.COMPLEX_UNIT_PX, mMinTextSize);
}
mHelpers.put(textView, helper);
}
/**
* Returns the {@link AutofitHelper} for this child View.
*/
public AutofitHelper getAutofitHelper(TextView textView) {
return mHelpers.get(textView);
}
/**
* Returns the {@link AutofitHelper} for this child View.
*/
public AutofitHelper getAutofitHelper(int index) {
return mHelpers.get(getChildAt(index));
}
}
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