Function _imageFit

src/image/loading_displaying.js:795–826

* @private * @param {(CONTAIN|COVER)} [fit] either CONTAIN or COVER * @param {(LEFT|RIGHT|CENTER)} xAlign either LEFT, RIGHT or CENTER * @param {(TOP|BOTTOM|CENTER)} yAlign either TOP, BOTTOM or CENTER * @param {Number} dx * @param {Number} dy * @param {Number} dw * @param {Numb

(fit, xAlign, yAlign, dx, dy, dw, dh, sx, sy, sw, sh)

   * @returns {Object}
   */
  function _imageFit(fit, xAlign, yAlign, dx, dy, dw, dh, sx, sy, sw, sh) {
    if (fit === constants.COVER) {
      const { x, y, w, h } = _imageCover(
        xAlign, yAlign,
        dw, dh,
        sx, sy,
        sw, sh
      );
      sx = x;
      sy = y;
      sw = w;
      sh = h;
    }

    if (fit === constants.CONTAIN) {
      const { x, y, w, h } = _imageContain(
        xAlign,
        yAlign,
        dx,
        dy,
        dw,
        dh,
        sw,
        sh
      );
      dx = x;
      dy = y;
      dw = w;
      dh = h;
    }
    return { sx, sy, sw, sh, dx, dy, dw, dh };
  }

  /**
   * Validates clipping params. Per drawImage spec sWidth and sHight cannot be