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/*
* Copyright (C) 2012 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.mail.widget;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Typeface;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.style.AbsoluteSizeSpan;
import android.text.style.CharacterStyle;
import android.text.style.ForegroundColorSpan;
import android.text.style.StyleSpan;
import android.view.View;
import android.widget.RemoteViews;
import com.android.mail.R;
import com.android.mail.providers.Conversation;
import com.android.mail.providers.Folder;
import com.android.mail.ui.FolderDisplayer;
import com.android.mail.utils.FolderUri;
public class WidgetConversationListItemViewBuilder {
// Static colors
private static int SUBJECT_TEXT_COLOR_READ;
private static int SUBJECT_TEXT_COLOR_UNREAD;
private static int SNIPPET_TEXT_COLOR;
private static int DATE_TEXT_COLOR_READ;
private static int DATE_TEXT_COLOR_UNREAD;
// Static bitmap
private static Bitmap ATTACHMENT;
private WidgetFolderDisplayer mFolderDisplayer;
/**
* Label Displayer for Widget
*/
protected static class WidgetFolderDisplayer extends FolderDisplayer {
public WidgetFolderDisplayer(Context context) {
super(context);
}
// Maximum number of folders we want to display
private static final int MAX_DISPLAYED_FOLDERS_COUNT = 3;
/*
* Load Conversation Labels
*/
@Override
public void loadConversationFolders(Conversation conv, final FolderUri ignoreFolderUri,
final int ignoreFolderType) {
super.loadConversationFolders(conv, ignoreFolderUri, ignoreFolderType);
}
private static int getFolderViewId(int position) {
switch (position) {
case 0:
return R.id.widget_folder_0;
case 1:
return R.id.widget_folder_1;
case 2:
return R.id.widget_folder_2;
}
return 0;
}
/**
* Display folders
*/
public void displayFolders(RemoteViews remoteViews) {
int displayedFolder = 0;
for (Folder folderValues : mFoldersSortedSet) {
int viewId = getFolderViewId(displayedFolder);
if (viewId == 0) {
continue;
}
remoteViews.setViewVisibility(viewId, View.VISIBLE);
int color[] = new int[]
{folderValues.getBackgroundColor(mFolderDrawableResources.defaultBgColor)};
Bitmap bitmap = Bitmap.createBitmap(color, 1, 1, Bitmap.Config.RGB_565);
remoteViews.setImageViewBitmap(viewId, bitmap);
if (++displayedFolder == MAX_DISPLAYED_FOLDERS_COUNT) {
break;
}
}
for (int i = displayedFolder; i < MAX_DISPLAYED_FOLDERS_COUNT; i++) {
remoteViews.setViewVisibility(getFolderViewId(i), View.GONE);
}
}
}
/*
* Get font sizes and bitmaps from Resources
*/
public WidgetConversationListItemViewBuilder(Context context) {
final Resources res = context.getResources();
// Initialize colors
SUBJECT_TEXT_COLOR_READ = res.getColor(R.color.subject_text_color_read);
SUBJECT_TEXT_COLOR_UNREAD = res.getColor(R.color.subject_text_color_unread);
SNIPPET_TEXT_COLOR = res.getColor(R.color.snippet_text_color);
DATE_TEXT_COLOR_READ = res.getColor(R.color.date_text_color_read);
DATE_TEXT_COLOR_UNREAD = res.getColor(R.color.date_text_color_unread);
// Initialize Bitmap
ATTACHMENT = BitmapFactory.decodeResource(res, R.drawable.ic_attach_file_18dp);
}
/*
* Add size, color and style to a given text
*/
private static SpannableStringBuilder addStyle(CharSequence text, int size, int color) {
final SpannableStringBuilder builder = new SpannableStringBuilder(text);
builder.setSpan(
new AbsoluteSizeSpan(size), 0, text.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
if (color != 0) {
builder.setSpan(new ForegroundColorSpan(color), 0, text.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
return builder;
}
/*
* Return the full View
*/
public RemoteViews getStyledView(final Context context, final CharSequence date,
final Conversation conversation, final FolderUri folderUri, final int ignoreFolderType,
final SpannableStringBuilder senders, String subject) {
final boolean isUnread = !conversation.read;
final String snippet = conversation.getSnippet();
final boolean hasAttachments = conversation.hasAttachments;
final Resources res = context.getResources();
final int dateFontSize = res.getDimensionPixelSize(R.dimen.widget_date_font_size);
final int subjectFontSize = res.getDimensionPixelSize(R.dimen.widget_subject_font_size);
// Add style to date
final int dateColor = isUnread ? DATE_TEXT_COLOR_UNREAD : DATE_TEXT_COLOR_READ;
final SpannableStringBuilder dateBuilder = addStyle(date, dateFontSize, dateColor);
if (isUnread) {
dateBuilder.setSpan(new StyleSpan(Typeface.BOLD), 0, date.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
subject = Conversation.getSubjectForDisplay(context, null /* badgeText */, subject);
final SpannableStringBuilder subjectBuilder = new SpannableStringBuilder(subject);
if (isUnread) {
subjectBuilder.setSpan(new StyleSpan(Typeface.BOLD), 0, subject.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
final int subjectColor = isUnread ? SUBJECT_TEXT_COLOR_UNREAD : SUBJECT_TEXT_COLOR_READ;
final CharacterStyle subjectStyle = new ForegroundColorSpan(subjectColor);
subjectBuilder.setSpan(subjectStyle, 0, subjectBuilder.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
final CharSequence styledSubject = addStyle(subjectBuilder, subjectFontSize, 0);
final SpannableStringBuilder snippetBuilder = new SpannableStringBuilder(snippet);
snippetBuilder.setSpan(new ForegroundColorSpan(SNIPPET_TEXT_COLOR), 0,
snippetBuilder.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
final CharSequence styledSnippet = addStyle(snippetBuilder, subjectFontSize, 0);
// Paper clip for attachment
Bitmap paperclipBitmap = null;
if (hasAttachments) {
paperclipBitmap = ATTACHMENT;
}
// Inflate and fill out the remote view
final RemoteViews remoteViews = new RemoteViews(
context.getPackageName(), R.layout.widget_conversation_list_item);
remoteViews.setTextViewText(R.id.widget_senders, senders);
remoteViews.setTextViewText(R.id.widget_date, dateBuilder);
remoteViews.setTextViewText(R.id.widget_subject, styledSubject);
remoteViews.setTextViewText(R.id.widget_snippet, styledSnippet);
if (paperclipBitmap != null) {
remoteViews.setViewVisibility(R.id.widget_attachment, View.VISIBLE);
remoteViews.setImageViewBitmap(R.id.widget_attachment, paperclipBitmap);
} else {
remoteViews.setViewVisibility(R.id.widget_attachment, View.GONE);
}
if (isUnread) {
remoteViews.setViewVisibility(R.id.widget_unread_background, View.VISIBLE);
remoteViews.setViewVisibility(R.id.widget_read_background, View.GONE);
} else {
remoteViews.setViewVisibility(R.id.widget_unread_background, View.GONE);
remoteViews.setViewVisibility(R.id.widget_read_background, View.VISIBLE);
}
if (context.getResources().getBoolean(R.bool.display_folder_colors_in_widget)) {
mFolderDisplayer = new WidgetFolderDisplayer(context);
mFolderDisplayer.loadConversationFolders(conversation, folderUri, ignoreFolderType);
mFolderDisplayer.displayFolders(remoteViews);
}
return remoteViews;
}
}
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