Qt 5.7 | Qt Quick | Qt Quick Demo - RSS News | NewsDelegate.qml Example File

Qt 5.7.1 Reference Documentation

# NewsDelegate.qml Example File

demos/rssnews/content/NewsDelegate.qml

      /****************************************************************************
      **
      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
      **
      ** This file is part of the examples of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** You may use this file under the terms of the BSD license as follows:
      **
      ** "Redistribution and use in source and binary forms, with or without
      ** modification, are permitted provided that the following conditions are
      ** met:
      **   * Redistributions of source code must retain the above copyright
      **     notice, this list of conditions and the following disclaimer.
      **   * Redistributions in binary form must reproduce the above copyright
      **     notice, this list of conditions and the following disclaimer in
      **     the documentation and/or other materials provided with the
      **     distribution.
      **   * Neither the name of The Qt Company Ltd nor the names of its
      **     contributors may be used to endorse or promote products derived
      **     from this software without specific prior written permission.
      **
      **
      ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
      **
      ** $QT_END_LICENSE$
      **
      ****************************************************************************/

      import QtQuick 2.2

      Column {
          id: delegate
          width: delegate.ListView.view.width
          spacing: 8

          // Returns a string representing how long ago an event occurred
          function timeSinceEvent(pubDate) {
              var result = pubDate;

              // We need to modify the pubDate read from the RSS feed
              // so the JavaScript Date object can interpret it
              var d = pubDate.replace(',','').split(' ');
              if (d.length != 6)
                  return result;

              var date = new Date([d[0], d[2], d[1], d[3], d[4], 'GMT' + d[5]].join(' '));

              if (!isNaN(date.getDate())) {
                  var age = new Date() - date;
                  var minutes = Math.floor(Number(age) / 60000);
                  if (minutes < 1440) {
                      if (minutes < 2)
                          result = qsTr("Just now");
                      else if (minutes < 60)
                          result = '' + minutes + ' ' + qsTr("minutes ago")
                      else if (minutes < 120)
                          result = qsTr("1 hour ago");
                      else
                          result = '' + Math.floor(minutes/60) + ' ' + qsTr("hours ago");
                  }
                  else {
                      result = date.toDateString();
                  }
              }
              return result;
          }

          Item { height: 8; width: delegate.width }

          Row {
              width: parent.width
              spacing: 8

              Column {
                  Item {
                      width: 4
                      height: titleText.font.pixelSize / 4
                  }

                  Image {
                      id: titleImage
                      source: image
                  }
              }

              Text {
                  id: titleText

                  text: title
                  width: delegate.width - titleImage.width
                  wrapMode: Text.WordWrap
                  font.pixelSize: 26
                  font.bold: true
              }
          }

          Text {
              width: delegate.width
              font.pixelSize: 12
              textFormat: Text.RichText
              font.italic: true
              text: timeSinceEvent(pubDate) + " (<a href=\"" + link + "\">Link</a>)"
              onLinkActivated: {
                  Qt.openUrlExternally(link)
              }
          }

          Text {
              id: descriptionText

              text: description
              width: parent.width
              wrapMode: Text.WordWrap
              font.pixelSize: 14
              textFormat: Text.StyledText
              horizontalAlignment: Qt.AlignLeft
          }
      }