@syncfusion/ej2-pdf
Version:
Feature-rich JavaScript PDF library with built-in support for loading and manipulating PDF document.
205 lines (204 loc) • 7.91 kB
JavaScript
import { _PdfGraphicsUnit } from './../../enumerator';
import { _PdfUnitConvertor } from './../../graphics/pdf-graphics';
/**
* The 'PdfImage' contains methods and properties to handle the images.
* ```typescript
* // Load an existing PDF document
* let document: PdfDocument = new PdfDocument(data, password);
* // Access first page
* let page: PdfPage = document.getPage(0);
* // Gets the graphics of the PDF page
* let graphics: PdfGraphics = page.graphics;
* // Create new image object by using JPEG image data as Base64 string format
* let image: PdfImage = new PdfBitmap('/9j/4AAQSkZJRgABAQEAkACQAAD/4....QB//Z');
* //Draw the image.
* graphics.drawImage(image, {x: 10, y: 20, width: 400, height: 400});
* // Save the document
* document.save('output.pdf');
* // Destroy the document
* document.destroy();
* ```
*/
var PdfImage = /** @class */ (function () {
function PdfImage() {
}
Object.defineProperty(PdfImage.prototype, "width", {
/**
* Gets the width of the PDF image.
*
* @returns {number} image width.
* ```typescript
* // Load an existing PDF document
* let document: PdfDocument = new PdfDocument(data, password);
* // Access first page
* let page: PdfPage = document.getPage(0);
* // Gets the graphics of the PDF page
* let graphics: PdfGraphics = page.graphics;
* // Create new image object by using JPEG image data as Base64 string format
* let image: PdfImage = new PdfBitmap('/9j/4AAQSkZJRgABAQEAkACQAAD/4....QB//Z');
* // Gets the width of the image.
* let width: number = image.width;
* //Draw the image.
* image.draw(graphics);
* // Save the document
* document.save('output.pdf');
* // Destroy the document
* document.destroy();
* ```
*/
get: function () {
return this._imageWidth;
},
/**
* Sets the width of the PDF image.
*
* @param {number} value value.
* ```typescript
* // Load an existing PDF document
* let document: PdfDocument = new PdfDocument(data, password);
* // Access first page
* let page: PdfPage = document.getPage(0);
* // Gets the graphics of the PDF page
* let graphics: PdfGraphics = page.graphics;
* // Create new image object by using JPEG image data as Base64 string format
* let image: PdfImage = new PdfBitmap('/9j/4AAQSkZJRgABAQEAkACQAAD/4....QB//Z');
* // Sets the width of the image.
* image.width = 100;
* //Draw the image.
* image.draw(graphics);
* // Save the document
* document.save('output.pdf');
* // Destroy the document
* document.destroy();
* ```
*/
set: function (value) {
this._imageWidth = value;
},
enumerable: true,
configurable: true
});
Object.defineProperty(PdfImage.prototype, "height", {
/**
* Gets the height of the PDF image.
*
* @returns {number} image height.
* ```typescript
* // Load an existing PDF document
* let document: PdfDocument = new PdfDocument(data, password);
* // Access first page
* let page: PdfPage = document.getPage(0);
* // Gets the graphics of the PDF page
* let graphics: PdfGraphics = page.graphics;
* // Create new image object by using JPEG image data as Base64 string format
* let image: PdfImage = new PdfBitmap('/9j/4AAQSkZJRgABAQEAkACQAAD/4....QB//Z');
* // Gets the height of the image.
* let height: number = image.height;
* //Draw the image.
* image.draw(graphics);
* // Save the document
* document.save('output.pdf');
* // Destroy the document
* document.destroy();
* ```
*/
get: function () {
return this._imageHeight;
},
/**
* Sets the height of the PDF image.
*
* @param {number} value value.
* ```typescript
* // Load an existing PDF document
* let document: PdfDocument = new PdfDocument(data, password);
* // Access first page
* let page: PdfPage = document.getPage(0);
* // Gets the graphics of the PDF page
* let graphics: PdfGraphics = page.graphics;
* // Create new image object by using JPEG image data as Base64 string format
* let image: PdfImage = new PdfBitmap('/9j/4AAQSkZJRgABAQEAkACQAAD/4....QB//Z');
* // Sets the height of the image.
* image.height = 100;
* //Draw the image.
* image.draw(graphics);
* // Save the document
* document.save('output.pdf');
* // Destroy the document
* document.destroy();
* ```
*/
set: function (value) {
this._imageHeight = value;
},
enumerable: true,
configurable: true
});
Object.defineProperty(PdfImage.prototype, "physicalDimension", {
/**
* Gets the physical dimension of the PDF image (Read only).
*
* @returns {Size} image physical dimension.
* ```typescript
* // Load an existing PDF document
* let document: PdfDocument = new PdfDocument(data, password);
* // Access first page
* let page: PdfPage = document.getPage(0);
* // Gets the graphics of the PDF page
* let graphics: PdfGraphics = page.graphics;
* // Create new image object by using JPEG image data as Base64 string format
* let image: PdfImage = new PdfBitmap('/9j/4AAQSkZJRgABAQEAkACQAAD/4....QB//Z');
* // Gets the physical dimension of the image.
* let dimension: Size = image.physicalDimension;
* //Draw the image.
* image.draw(graphics);
* // Save the document
* document.save('output.pdf');
* // Destroy the document
* document.destroy();
* ```
*/
get: function () {
this._imagePhysicalDimension = this._getPointSize(this.width, this.height, this._horizontalResolution);
return { width: this.width, height: this.height };
},
enumerable: true,
configurable: true
});
PdfImage.prototype.draw = function (graphics, location) {
if (location && (location.x === null || typeof location.x === 'undefined') && (location.y === null || typeof location.y === 'undefined')) {
location.x = 0;
location.y = 0;
}
var needSave;
if (location) {
needSave = (location.x !== 0 || location.y !== 0);
}
var state = null;
if (needSave) {
state = graphics.save();
graphics.translateTransform(location);
}
graphics.drawImage(this, { x: 0, y: 0 });
if (needSave) {
graphics.restore(state);
}
};
PdfImage.prototype._getPointSize = function (width, height, horizontalResolution) {
if ((horizontalResolution === null || typeof horizontalResolution === 'undefined')) {
var dpiX = 96;
var size = this._getPointSize(width, height, dpiX);
return size;
}
else {
var ucX = new _PdfUnitConvertor();
var ucY = new _PdfUnitConvertor();
var ptWidth = ucX._convertUnits(width, _PdfGraphicsUnit.pixel, _PdfGraphicsUnit.point);
var ptHeight = ucY._convertUnits(height, _PdfGraphicsUnit.pixel, _PdfGraphicsUnit.point);
var size = [ptWidth, ptHeight];
return size;
}
};
return PdfImage;
}());
export { PdfImage };