Qt 5.6 | Qt Quick Extras | Qt Quick Extras - Gallery | CircularGaugeDarkStyle.qml Example File

Qt 5.6.3 Reference Documentation

# CircularGaugeDarkStyle.qml Example File

gallery/qml/CircularGaugeDarkStyle.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
      import QtQuick.Controls.Styles 1.4

      CircularGaugeStyle {
          id: root
          tickmarkStepSize: 10
          minorTickmarkCount: 1
          labelStepSize: 20
          tickmarkInset: outerRadius * 0.06
          minorTickmarkInset: tickmarkInset
          labelInset: outerRadius * 0.23

          background: Image {
              source: "qrc:/images/background.png"
          }

          needle: Image {
              id: needleImage
              transformOrigin: Item.Bottom
              source: "qrc:/images/needle.png"
              scale: {
                  var distanceFromLabelToRadius = labelInset / 2;
                  var idealHeight = outerRadius - distanceFromLabelToRadius;
                  var originalImageHeight = needleImage.sourceSize.height;
                  idealHeight / originalImageHeight;
              }
          }

          foreground: Item {
              Image {
                  anchors.centerIn: parent
                  source: "qrc:/images/center.png"
                  scale: (outerRadius * 0.25) / sourceSize.height
              }
          }

          tickmark: Rectangle {
              implicitWidth: outerRadius * 0.02
              antialiasing: true
              implicitHeight: outerRadius * 0.05
              color: "#888"
          }

          minorTickmark: Rectangle {
              implicitWidth: outerRadius * 0.01
              antialiasing: true
              implicitHeight: outerRadius * 0.02
              color: "#444"
          }

          tickmarkLabel: Text {
              font.pixelSize: Math.max(6, outerRadius * 0.1)
              text: styleData.value
              color: "white"
          }
      }