roundedrect.qml Example File

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  import QtQuick 2.0
  import "../contents"
  import "../../shared"

  Item {
      id:container
      width: 320
      height: 480

      Column {
          spacing: 6
          anchors.fill: parent
          anchors.topMargin: 12
          Text {
              font.pointSize: 24
              font.bold: true
              text: "Rounded rectangle"
              anchors.horizontalCenter: parent.horizontalCenter
              color: "#777"
          }
          Canvas {
              id: canvas
              width: 320
              height: 280
              antialiasing: true

              property int radius: rCtrl.value
              property int rectx: 60
              property int recty: 60
              property int rectWidth: width - 2*rectx
              property int rectHeight: height - 2*recty
              property color strokeStyle:  Qt.darker(fillStyle, 1.4)
              property color fillStyle: "#ae32a0" // purple
              property int lineWidth: lineWidthCtrl.value
              property bool fill: true
              property bool stroke: true
              property real alpha: 1.0

              onLineWidthChanged:requestPaint();
              onFillChanged:requestPaint();
              onStrokeChanged:requestPaint();
              onRadiusChanged:requestPaint();

              onPaint: {
                  var ctx = getContext("2d");
                  ctx.save();
                  ctx.clearRect(0,0,canvas.width, canvas.height);
                  ctx.strokeStyle = canvas.strokeStyle;
                  ctx.lineWidth = canvas.lineWidth
                  ctx.fillStyle = canvas.fillStyle
                  ctx.globalAlpha = canvas.alpha
                  ctx.beginPath();
                  ctx.moveTo(rectx+radius,recty);                 // top side
                  ctx.lineTo(rectx+rectWidth-radius,recty);
                  // draw top right corner
                  ctx.arcTo(rectx+rectWidth,recty,rectx+rectWidth,recty+radius,radius);
                  ctx.lineTo(rectx+rectWidth,recty+rectHeight-radius);    // right side
                  // draw bottom right corner
                  ctx.arcTo(rectx+rectWidth,recty+rectHeight,rectx+rectWidth-radius,recty+rectHeight,radius);
                  ctx.lineTo(rectx+radius,recty+rectHeight);              // bottom side
                  // draw bottom left corner
                  ctx.arcTo(rectx,recty+rectHeight,rectx,recty+rectHeight-radius,radius);
                  ctx.lineTo(rectx,recty+radius);                 // left side
                  // draw top left corner
                  ctx.arcTo(rectx,recty,rectx+radius,recty,radius);
                  ctx.closePath();
                  if (canvas.fill)
                      ctx.fill();
                  if (canvas.stroke)
                      ctx.stroke();
                  ctx.restore();
              }
          }
      }
      Column {
          anchors.bottom: parent.bottom
          anchors.bottomMargin: 12
          Slider {id: lineWidthCtrl ; min: 1 ; max: 10; init: 2 ; name: "Outline"}
          Slider {id: rCtrl ; min: 10 ; max: 80 ; init: 40 ; name: "Radius"}
      }
  }