/**
* [raster description]
* @param {[type]} image [description]
* @param {[type]} mode [description]
* @return {[type]} [description]
*/
raster(image, mode) {
if (!(image instanceof Image))
throw new TypeError('Only escpos.Image supported');
mode = mode || 'normal';
if (mode === 'dhdw' ||
mode === 'dwh' ||
mode === 'dhw') mode = 'dwdh';
const raster = image.toRaster();
const header = _.GSV0_FORMAT['GSV0_' + mode.toUpperCase()];
this.buffer.write(header);
this.buffer.writeUInt16LE(raster.width);
this.buffer.writeUInt16LE(raster.height);
this.buffer.write(raster.data);
return this;
}
/**
* [print qrcode]
* @param {[type]} code [description]
* @param {[type]} version [description]
* @param {[type]} level [description]
* @param {[type]} size [description]
* @return {[type]} [description]
*/
qrcode(code, version, level, size) {
this.buffer.write(_.CODE2D_FORMAT.TYPE_QR);
this.buffer.write(_.CODE2D_FORMAT.CODE2D);
this.buffer.writeUInt8(version || 3);
this.buffer.write(_.CODE2D_FORMAT[
'QR_LEVEL_' + (level || 'L').toUpperCase()
]);
this.buffer.writeUInt8(size || 6);
this.buffer.writeUInt16LE(code.length);
this.buffer.write(code);
return this;
}