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/*
* Copyright (C) 2017 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.launcher3.widget;
import android.appwidget.AppWidgetProviderInfo;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.text.Layout;
import android.text.StaticLayout;
import android.text.TextPaint;
import android.text.TextUtils;
import android.util.TypedValue;
import android.widget.RemoteViews;
import com.android.launcher3.R;
/**
* A widget host views created while the host has not bind to the system service.
*/
public class DeferredAppWidgetHostView extends LauncherAppWidgetHostView {
private final TextPaint mPaint;
private Layout mSetupTextLayout;
public DeferredAppWidgetHostView(Context context) {
super(context);
setWillNotDraw(false);
mPaint = new TextPaint();
mPaint.setColor(Color.WHITE);
mPaint.setTextSize(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_PX,
mLauncher.getDeviceProfile().getFullScreenProfile().iconTextSizePx,
getResources().getDisplayMetrics()));
setBackgroundResource(R.drawable.bg_deferred_app_widget);
}
@Override
public void updateAppWidget(RemoteViews remoteViews) {
// Not allowed
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
AppWidgetProviderInfo info = getAppWidgetInfo();
if (info == null || TextUtils.isEmpty(info.label)) {
return;
}
// Use double padding so that there is extra space between background and text
int availableWidth = getMeasuredWidth() - 2 * (getPaddingLeft() + getPaddingRight());
if (mSetupTextLayout != null && mSetupTextLayout.getText().equals(info.label)
&& mSetupTextLayout.getWidth() == availableWidth) {
return;
}
mSetupTextLayout = new StaticLayout(info.label, mPaint, availableWidth,
Layout.Alignment.ALIGN_CENTER, 1, 0, true);
}
@Override
protected void onDraw(Canvas canvas) {
if (mSetupTextLayout != null) {
canvas.translate(getPaddingLeft() * 2,
(getHeight() - mSetupTextLayout.getHeight()) / 2);
mSetupTextLayout.draw(canvas);
}
}
}
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