Qt 5.7 | Qt Canvas 3D | Qt Quick Item as Texture Example | main.qml Example File

Qt 5.7.1 Reference Documentation

# main.qml Example File

quickitemtexture/qml/quickitemtexture/main.qml

      /****************************************************************************
      **
      ** Copyright (C) 2016 The Qt Company Ltd.
      ** Contact: https://www.qt.io/licensing/
      **
      ** This file is part of the QtCanvas3D module 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 2.2
      import QtCanvas3D 1.1
      import QtQuick.Controls 1.1
      import QtQuick.Layouts 1.1
      import QtQuick.Window 2.2

      import "quickitemtexture.js" as GLCode

      Window {
          id: mainview
          width: 800
          height: 600
          visible: true
          title: "Qt Quick Item as Texture"
          color: "#f9f9f9"

          ColumnLayout {
              Layout.fillWidth: true
              x: 4
              y: 4
              Rectangle {
                  id: textureSource
                  color: "lightgreen"
                  width: 256
                  height: 256
                  border.color: "blue"
                  border.width: 4
                  layer.enabled: true
                  layer.smooth: true
                  Label {
                      anchors.fill: parent
                      anchors.margins: 16
                      text: "X Rot:" + (canvas3d.xRotAnim | 0) + "\n"
                          + "Y Rot:" + (canvas3d.yRotAnim | 0) + "\n"
                          + "Z Rot:" + (canvas3d.zRotAnim | 0) + "\n"
                          + "FPS:" + canvas3d.fps
                      color: "red"
                      font.pointSize: 26
                      horizontalAlignment: Text.AlignLeft
                      verticalAlignment: Text.AlignVCenter
                  }
              }
              Button {
                  Layout.fillWidth: true
                  Layout.minimumWidth: 256
                  text: textureSource.visible ? "Hide texture source" : "Show texture source"
                  onClicked: textureSource.visible = !textureSource.visible
              }
              Button {
                  Layout.fillWidth: true
                  Layout.minimumWidth: 256
                  text: "Quit"
                  onClicked: Qt.quit()
              }
          }

          Canvas3D {
              id: canvas3d
              anchors.fill:parent
              focus: true
              property double xRotAnim: 0
              property double yRotAnim: 0
              property double zRotAnim: 0
              property bool isRunning: true

              // Emitted when one time initializations should happen
              onInitializeGL: {
                  GLCode.initializeGL(canvas3d, textureSource);
              }

              // Emitted each time Canvas3D is ready for a new frame
              onPaintGL: {
                  GLCode.paintGL(canvas3d);
              }

              onResizeGL: {
                  GLCode.resizeGL(canvas3d);
              }

              Keys.onSpacePressed: {
                  canvas3d.isRunning = !canvas3d.isRunning
                  if (canvas3d.isRunning) {
                      objAnimationX.pause();
                      objAnimationY.pause();
                      objAnimationZ.pause();
                  } else {
                      objAnimationX.resume();
                      objAnimationY.resume();
                      objAnimationZ.resume();
                  }
              }

              SequentialAnimation {
                  id: objAnimationX
                  loops: Animation.Infinite
                  running: true
                  NumberAnimation {
                      target: canvas3d
                      property: "xRotAnim"
                      from: 0.0
                      to: 120.0
                      duration: 7000
                      easing.type: Easing.InOutQuad
                  }
                  NumberAnimation {
                      target: canvas3d
                      property: "xRotAnim"
                      from: 120.0
                      to: 0.0
                      duration: 7000
                      easing.type: Easing.InOutQuad
                  }
              }

              SequentialAnimation {
                  id: objAnimationY
                  loops: Animation.Infinite
                  running: true
                  NumberAnimation {
                      target: canvas3d
                      property: "yRotAnim"
                      from: 0.0
                      to: 240.0
                      duration: 5000
                      easing.type: Easing.InOutCubic
                  }
                  NumberAnimation {
                      target: canvas3d
                      property: "yRotAnim"
                      from: 240.0
                      to: 0.0
                      duration: 5000
                      easing.type: Easing.InOutCubic
                  }
              }

              SequentialAnimation {
                  id: objAnimationZ
                  loops: Animation.Infinite
                  running: true
                  NumberAnimation {
                      target: canvas3d
                      property: "zRotAnim"
                      from: -100.0
                      to: 100.0
                      duration: 3000
                      easing.type: Easing.InOutSine
                  }
                  NumberAnimation {
                      target: canvas3d
                      property: "zRotAnim"
                      from: 100.0
                      to: -100.0
                      duration: 3000
                      easing.type: Easing.InOutSine
                  }
              }
          }
      }