1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.alarmclock;
18
19import android.appwidget.AppWidgetManager;
20import android.content.Context;
21import android.content.res.Resources;
22import android.os.Bundle;
23
24import com.android.deskclock.R;
25import com.android.deskclock.Utils;
26
27public final class WidgetUtils {
28
29    private WidgetUtils() {}
30
31    // Calculate the scale factor of the fonts in the widget
32    public static float getScaleRatio(Context context, Bundle options, int id, int cityCount) {
33        if (options == null) {
34            AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
35            if (widgetManager == null) {
36                // no manager , do no scaling
37                return 1f;
38            }
39            options = widgetManager.getAppWidgetOptions(id);
40        }
41        if (options != null) {
42            int minWidth = options.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH);
43            if (minWidth == 0) {
44                // No data , do no scaling
45                return 1f;
46            }
47            final Resources res = context.getResources();
48            float density = res.getDisplayMetrics().density;
49            float ratio = (density * minWidth) / res.getDimension(R.dimen.min_digital_widget_width);
50            ratio = Math.min(ratio, getHeightScaleRatio(context, options, id));
51            ratio *= .83f;
52
53            if (cityCount > 0) {
54                return (ratio > 1f) ? 1f : ratio;
55            }
56
57            ratio = Math.min(ratio, 1.6f);
58            if (Utils.isPortrait(context)) {
59                ratio = Math.max(ratio, .71f);
60            }
61            else {
62                ratio = Math.max(ratio, .45f);
63            }
64            return ratio;
65        }
66        return 1f;
67    }
68
69    // Calculate the scale factor of the fonts in the list of  the widget using the widget height
70    private static float getHeightScaleRatio(Context context, Bundle options, int id) {
71        if (options == null) {
72            AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
73            if (widgetManager == null) {
74                // no manager , do no scaling
75                return 1f;
76            }
77            options = widgetManager.getAppWidgetOptions(id);
78        }
79        if (options != null) {
80            int minHeight = options.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT);
81            if (minHeight == 0) {
82                // No data , do no scaling
83                return 1f;
84            }
85            final Resources res = context.getResources();
86            float density = res.getDisplayMetrics().density;
87            float ratio = density * minHeight / res.getDimension(R.dimen.min_digital_widget_height);
88            if (Utils.isPortrait(context)) {
89                return ratio * 1.75f;
90            }
91            return ratio;
92        }
93        return 1;
94    }
95}