@mmote/niimbluelib
Version:
Library for the communication with NIIMBOT printers
71 lines (70 loc) • 2.06 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.AbstractPrintTask = void 0;
const packets_1 = require("../packets");
/** Default print options for print tasks. */
const printOptionsDefaults = {
labelType: packets_1.LabelType.WithGaps,
density: 2,
totalPages: 1,
statusPollIntervalMs: 300,
statusTimeoutMs: 5_000,
pageTimeoutMs: 10_000,
speed: 1,
color: 0,
};
/**
* Different printer models have different print algorithms. Print task defines this algorithm.
*
* @example
* ```ts
* const quantity = 1;
*
* const printTask = client.abstraction.newPrintTask("D110", {
* totalPages: quantity
* });
*
* try {
* await printTask.printInit();
* await printTask.printPage(encodedImage, quantity); // encode your canvas with ImageEncoder.encodeCanvas
* await printTask.waitForPageFinished();
* await printTask.waitForFinished();
* } catch (e) {
* alert(e);
* } finally {
* await client.abstraction.printEnd();
* }
* ```
*
* @category Print tasks
**/
class AbstractPrintTask {
constructor(abstraction, printOptions) {
this.abstraction = abstraction;
this.pagesPrinted = 0;
this.printOptions = {
...printOptionsDefaults,
...printOptions,
};
}
/** Check added pages not does not exceed {@link pagesPrinted} */
checkAddPage(quantity) {
if (this.pagesPrinted + quantity > (this.printOptions.totalPages ?? 1)) {
throw new Error("Trying to print too many pages (task totalPages may not be set correctly)");
}
this.pagesPrinted += quantity;
}
/** Wait for page print is finished */
waitForPageFinished() {
return Promise.resolve();
}
/** Printer's printhead resolution in pixels */
printheadPixels() {
return this.abstraction.getClient().getModelMetadata()?.printheadPixels;
}
/** End print, cleanup */
printEnd() {
return this.abstraction.printEnd();
}
}
exports.AbstractPrintTask = AbstractPrintTask;