color-animation.qml Example File | Qt Quick 5.9

Qt 5.9 | Qt Quick | Qt Quick Examples - Animation | color-animation.qml Example File

Qt 5.9.3 Reference Documentation

# color-animation.qml Example File

animation/basics/color-animation.qml

      /****************************************************************************
      **
      ** Copyright (C) 2017 The Qt Company Ltd.
      ** Contact: https://www.qt.io/licensing/
      **
      ** This file is part of the examples of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** Commercial License Usage
      ** Licensees holding valid commercial Qt licenses may use this file in
      ** accordance with the commercial license agreement provided with the
      ** Software or, alternatively, in accordance with the terms contained in
      ** a written agreement between you and The Qt Company. For licensing terms
      ** and conditions see https://www.qt.io/terms-conditions. For further
      ** information use the contact form at https://www.qt.io/contact-us.
      **
      ** BSD License Usage
      ** Alternatively, 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 QtQuick.Particles 2.0

      Item {
          id: window
          width: 320; height: 480

          // Let's draw the sky...
          Rectangle {
              anchors { left: parent.left; top: parent.top; right: parent.right; bottom: parent.verticalCenter }
              gradient: Gradient {
                  GradientStop {
                      position: 0.0
                      SequentialAnimation on color {
                          loops: Animation.Infinite
                          ColorAnimation { from: "#14148c"; to: "#0E1533"; duration: 5000 }
                          ColorAnimation { from: "#0E1533"; to: "#14148c"; duration: 5000 }
                      }
                  }
                  GradientStop {
                      position: 1.0
                      SequentialAnimation on color {
                          loops: Animation.Infinite
                          ColorAnimation { from: "#14aaff"; to: "#437284"; duration: 5000 }
                          ColorAnimation { from: "#437284"; to: "#14aaff"; duration: 5000 }
                      }
                  }
              }
          }

          // the sun, moon, and stars
          Item {
              width: parent.width; height: 2 * parent.height
              NumberAnimation on rotation { from: 0; to: 360; duration: 10000; loops: Animation.Infinite }
              Image {
                  source: "images/sun.png"; y: 10; anchors.horizontalCenter: parent.horizontalCenter
                  rotation: -3 * parent.rotation
              }
              Image {
                  source: "images/moon.png"; y: parent.height - 74; anchors.horizontalCenter: parent.horizontalCenter
                  rotation: -parent.rotation
              }
              ParticleSystem {
                  id: particlesystem
                  x: 0; y: parent.height/2
                  width: parent.width; height: parent.height/2
                  ImageParticle {
                      source: "images/star.png"
                      groups: ["star"]
                      color: "#00333333"
                      SequentialAnimation on opacity {
                          loops: Animation.Infinite
                          NumberAnimation { from: 0; to: 1; duration: 5000 }
                          NumberAnimation { from: 1; to: 0; duration: 5000 }
                      }
                  }
                  Emitter {
                      group: "star"
                      anchors.fill: parent
                      emitRate: parent.width / 50
                      lifeSpan: 5000
                  }
              }
          }

          // ...and the ground.
          Rectangle {
              anchors { left: parent.left; top: parent.verticalCenter; right: parent.right; bottom: parent.bottom }
              gradient: Gradient {
                  GradientStop {
                      position: 0.0
                      SequentialAnimation on color {
                          loops: Animation.Infinite
                          ColorAnimation { from: "#80c342"; to: "#001600"; duration: 5000 }
                          ColorAnimation { from: "#001600"; to: "#80c342"; duration: 5000 }
                      }
                  }
                  GradientStop { position: 1.0; color: "#006325" }
              }
          }
      }