ImageDetails.qml Example File

geoflickr/flickrmobile/ImageDetails.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 2.0
  import "../flickrcommon" as Common

  Flipable {
      id: container

      property variant frontContainer: containerFront
      property string photoTitle: ""
      property string photoDate
      property string photoUrl
      property variant prevScale: 1.0

      signal closed

      transform: Rotation {
          id: itemRotation
          origin.x: container.width / 2;
          axis.y: 1; axis.z: 0
      }

      front: Item {
          id: containerFront; anchors.fill: container

          Rectangle {
              anchors.fill: parent
              color: "black"; opacity: 0.4
          }

          Column {
              spacing: 10
              anchors {
                  left: parent.left; leftMargin: 20
                  right: parent.right; rightMargin: 20
                  top: parent.top; topMargin: 180
              }
              Text { font.bold: true; color: "white"; elide: Text.ElideRight; text: container.photoTitle }
              Text { color: "white"; elide: Text.ElideRight; text: "<b>Published:</b> " + container.photoDate }
          }
      }

      back: Item {
          anchors.fill: container

          Rectangle { anchors.fill: parent; color: "black"; opacity: 0.4 }

          Common.Progress {
              anchors.centerIn: parent; width: 200; height: 18
              progress: bigImage.progress; visible: bigImage.status != Image.Ready
          }

          Flickable {
              id: flickable; anchors.fill: parent; clip: true
              contentWidth: imageContainer.width; contentHeight: imageContainer.height

              Item {
                  id: imageContainer
                  width: Math.max(bigImage.width * bigImage.scale, flickable.width);
                  height: Math.max(bigImage.height * bigImage.scale, flickable.height);

                  Image {
                      id: bigImage; // source: container.photoUrl
                      source: container.photoUrl
                      scale: slider.value
                      anchors.centerIn: parent; smooth: !flickable.movingVertically
                      onStatusChanged : {
                          // Default scale shows the entire image.
                          if (status == Image.Ready && width != 0) {
                              slider.minimum = Math.min(flickable.width / width, flickable.height / height);
                              prevScale = Math.min(slider.minimum, 1);
                              slider.value = prevScale;
                          }
                      }
                  }
              }
          }

          Text {
              text: "Image Unavailable"
              visible: bigImage.status == Image.Error
              anchors.centerIn: parent; color: "white"; font.bold: true
          }

          Common.Slider {
              id: slider; visible: { bigImage.status == Image.Ready && maximum > minimum }
              anchors {
                  bottom: parent.bottom; bottomMargin: 65
                  left: parent.left; leftMargin: 25
                  right: parent.right; rightMargin: 25
              }
              onValueChanged: {
                  if (bigImage.width * value > flickable.width) {
                      var xoff = (flickable.width/2 + flickable.contentX) * value / prevScale;
                      flickable.contentX = xoff - flickable.width/2;
                  }
                  if (bigImage.height * value > flickable.height) {
                      var yoff = (flickable.height/2 + flickable.contentY) * value / prevScale;
                      flickable.contentY = yoff - flickable.height/2;
                  }
                  prevScale = value;
              }
          }
      }

      states: State {
          name: "Back"
          PropertyChanges { target: itemRotation; angle: 180 }
      }

      transitions: Transition {
          SequentialAnimation {
              PropertyAction { target: bigImage; property: "smooth"; value: false }
              NumberAnimation { easing.type: Easing.InOutQuad; properties: "angle"; duration: 500 }
              PropertyAction { target: bigImage; property: "smooth"; value: !flickable.movingVertically }
          }
      }
  }