Android Open Source - android-rss Post List Row

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * $Id: PostListRow.java 112 2008-02-14 00:34:50Z jasta00 $
 */*from  ww w.j a va2  s  . com*/
 * Copyright (C) 2007 Josh Guilfoyle <jasta@devtcg.org>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

package org.devtcg.rssreader.view;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

import org.devtcg.rssreader.provider.RSSReader;

import android.content.Context;
import android.database.Cursor;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class PostListRow extends ViewGroup
{
  private static final String TAG = "PostListRow";
  
  private static final int SUBJECT_ID = 1;
  private static final int DATE_ID = 2;

  private TextView mSubject;
  private TextView mDate;

  private Rect mRect;
  private Paint mGray;

  private static final SimpleDateFormat mDateFmtDB;
  private static final SimpleDateFormat mDateFmtToday;
  private static final SimpleDateFormat mDateFmt;

  static
  {
    mDateFmtDB = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
    mDateFmtToday = new SimpleDateFormat("h:mma");

    /* TODO: Format date according to the current locale preference. */
    mDateFmt = new SimpleDateFormat("MM/dd/yyyy h:mma");
  }

  public PostListRow(Context context)
  {
    super(context);

    mRect = new Rect();
    mGray = new Paint();
    mGray.setStyle(Paint.Style.STROKE);
    mGray.setColor(0xff9c9e9c);

    mSubject = new TextView(context);
    mSubject.setId(SUBJECT_ID);

    LayoutParams subjectRules =
      new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

    addView(mSubject, subjectRules);

    mDate = new TextView(context);
    mDate.setId(DATE_ID);
    mDate.setTextColor(0xffaaaaaa);

    LayoutParams dateRules =
      new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

    addView(mDate, dateRules);
  }

  @Override
  protected void onLayout(boolean changed, int l, int t, int r, int b)
  {
    int subjw = mSubject.getMeasuredWidth();
    int subjh = mSubject.getMeasuredHeight();
    int datew = mDate.getMeasuredWidth();
    int dateh = mDate.getMeasuredHeight();
    int selfw = getMeasuredWidth();
    int selfh = getMeasuredHeight();

    mSubject.layout(0, 0, subjw, subjh);
    mDate.layout(selfw - datew, selfh - (dateh + 4), selfw, selfh - 4);
  }

  @Override
  protected void onMeasure(int widthSpec, int heightSpec)
  {
    int w = View.MeasureSpec.getSize(widthSpec);

    /* TODO: Honor mSubject LayoutParams()? */
    mSubject.measure(widthSpec, heightSpec);
    mDate.measure
     (getChildMeasureSpec(widthSpec, 0, mDate.getLayoutParams().width),
      getChildMeasureSpec(heightSpec, 0, mDate.getLayoutParams().height));

    int h;
    int lines = mSubject.getLineCount();

    if (lines <= 1)
      h = mSubject.getMeasuredHeight() + mDate.getMeasuredHeight();
    else
    {
      h = mSubject.getMeasuredHeight();

      /* Attempt to figure out if the last line "bleeds" into the date.
       * If it does, we need to arbitrarily force our layout one line
       * longer. */
      float linew = mSubject.getLayout().getLineRight(lines - 1);  

      if ((linew + 10) > (w - mDate.getMeasuredWidth()))
        h += mDate.getMeasuredHeight();
    }

    /* Add a bottom 4px padding. */
    setMeasuredDimension(w, h + 4);
  }

  @Override
  protected void dispatchDraw(Canvas canvas)
  {
    Rect r = mRect;

    getDrawingRect(r);
    canvas.drawLine(r.left, r.bottom - 1, r.right, r.bottom - 1, mGray);

    super.dispatchDraw(canvas);
  }

  public void bindView(Cursor cursor)
  {
    if (cursor.getInt(cursor.getColumnIndex(RSSReader.Posts.READ)) != 0)
      mSubject.setTypeface(Typeface.DEFAULT);
    else
      mSubject.setTypeface(Typeface.DEFAULT_BOLD);

    mSubject.setText(cursor, cursor.getColumnIndex(RSSReader.Posts.TITLE));

    String datestr = cursor.getString(cursor.getColumnIndex(RSSReader.Posts.DATE));

    try
    {
      Date date = mDateFmtDB.parse(datestr);

      Calendar then = new GregorianCalendar();
      then.setTime(date);

      Calendar now = new GregorianCalendar();

      SimpleDateFormat fmt;

      if (now.get(Calendar.DAY_OF_YEAR) == then.get(Calendar.DAY_OF_YEAR))
        fmt = mDateFmtToday;
      else
        fmt = mDateFmt;

      mDate.setText(fmt.format(date));
    }
    catch (ParseException e)
    {
      Log.d(TAG, Log.getStackTraceString(e));
    }    
  }
}

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