rgba.js Example File | Qt Script

Qt 5.6 | Qt Script | Context2D Example | rgba.js Example File

Qt 5.6.2 Reference Documentation

# rgba.js Example File

script/context2d/scripts/rgba.js

      var ctx = document.getElementById('tutorial').getContext('2d');

        // Draw background
        ctx.fillStyle = 'rgb(255,221,0)';
        ctx.fillRect(0,0,150,37.5);
        ctx.fillStyle = 'rgb(102,204,0)';
        ctx.fillRect(0,37.5,150,37.5);
        ctx.fillStyle = 'rgb(0,153,255)';
        ctx.fillRect(0,75,150,37.5);
        ctx.fillStyle = 'rgb(255,51,0)';
        ctx.fillRect(0,112.5,150,37.5);

        // Draw semi transparent rectangles
        for (i=0;i<10;i++){
          ctx.fillStyle = 'rgba(255,255,255,'+(i+1)/10+')';
          for (j=0;j<4;j++){
            ctx.fillRect(5+i*14,5+j*37.5,14,27.5)
          }
        }