pdf-lib
Version:
Create and modify PDF files with JavaScript
123 lines • 5.55 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var PDFDict_1 = tslib_1.__importDefault(require("../objects/PDFDict"));
var PDFName_1 = tslib_1.__importDefault(require("../objects/PDFName"));
var PDFStream_1 = tslib_1.__importDefault(require("../objects/PDFStream"));
var PDFArray_1 = tslib_1.__importDefault(require("../objects/PDFArray"));
var PDFRef_1 = tslib_1.__importDefault(require("../objects/PDFRef"));
var PDFNumber_1 = tslib_1.__importDefault(require("../objects/PDFNumber"));
var PDFAnnotation = /** @class */ (function () {
function PDFAnnotation(dict) {
this.dict = dict;
}
// This is technically required by the PDF spec
PDFAnnotation.prototype.Rect = function () {
return this.dict.lookup(PDFName_1.default.of('Rect'), PDFArray_1.default);
};
PDFAnnotation.prototype.AP = function () {
return this.dict.lookupMaybe(PDFName_1.default.of('AP'), PDFDict_1.default);
};
PDFAnnotation.prototype.F = function () {
var numberOrRef = this.dict.lookup(PDFName_1.default.of('F'));
return this.dict.context.lookupMaybe(numberOrRef, PDFNumber_1.default);
};
PDFAnnotation.prototype.getRectangle = function () {
var _a;
var Rect = this.Rect();
return (_a = Rect === null || Rect === void 0 ? void 0 : Rect.asRectangle()) !== null && _a !== void 0 ? _a : { x: 0, y: 0, width: 0, height: 0 };
};
PDFAnnotation.prototype.setRectangle = function (rect) {
var x = rect.x, y = rect.y, width = rect.width, height = rect.height;
var Rect = this.dict.context.obj([x, y, x + width, y + height]);
this.dict.set(PDFName_1.default.of('Rect'), Rect);
};
PDFAnnotation.prototype.getAppearanceState = function () {
var AS = this.dict.lookup(PDFName_1.default.of('AS'));
if (AS instanceof PDFName_1.default)
return AS;
return undefined;
};
PDFAnnotation.prototype.setAppearanceState = function (state) {
this.dict.set(PDFName_1.default.of('AS'), state);
};
PDFAnnotation.prototype.setAppearances = function (appearances) {
this.dict.set(PDFName_1.default.of('AP'), appearances);
};
PDFAnnotation.prototype.ensureAP = function () {
var AP = this.AP();
if (!AP) {
AP = this.dict.context.obj({});
this.dict.set(PDFName_1.default.of('AP'), AP);
}
return AP;
};
PDFAnnotation.prototype.getNormalAppearance = function () {
var AP = this.ensureAP();
var N = AP.get(PDFName_1.default.of('N'));
if (N instanceof PDFRef_1.default || N instanceof PDFDict_1.default)
return N;
throw new Error("Unexpected N type: " + (N === null || N === void 0 ? void 0 : N.constructor.name));
};
/** @param appearance A PDFDict or PDFStream (direct or ref) */
PDFAnnotation.prototype.setNormalAppearance = function (appearance) {
var AP = this.ensureAP();
AP.set(PDFName_1.default.of('N'), appearance);
};
/** @param appearance A PDFDict or PDFStream (direct or ref) */
PDFAnnotation.prototype.setRolloverAppearance = function (appearance) {
var AP = this.ensureAP();
AP.set(PDFName_1.default.of('R'), appearance);
};
/** @param appearance A PDFDict or PDFStream (direct or ref) */
PDFAnnotation.prototype.setDownAppearance = function (appearance) {
var AP = this.ensureAP();
AP.set(PDFName_1.default.of('D'), appearance);
};
PDFAnnotation.prototype.removeRolloverAppearance = function () {
var AP = this.AP();
AP === null || AP === void 0 ? void 0 : AP.delete(PDFName_1.default.of('R'));
};
PDFAnnotation.prototype.removeDownAppearance = function () {
var AP = this.AP();
AP === null || AP === void 0 ? void 0 : AP.delete(PDFName_1.default.of('D'));
};
PDFAnnotation.prototype.getAppearances = function () {
var AP = this.AP();
if (!AP)
return undefined;
var N = AP.lookup(PDFName_1.default.of('N'), PDFDict_1.default, PDFStream_1.default);
var R = AP.lookupMaybe(PDFName_1.default.of('R'), PDFDict_1.default, PDFStream_1.default);
var D = AP.lookupMaybe(PDFName_1.default.of('D'), PDFDict_1.default, PDFStream_1.default);
return { normal: N, rollover: R, down: D };
};
PDFAnnotation.prototype.getFlags = function () {
var _a, _b;
return (_b = (_a = this.F()) === null || _a === void 0 ? void 0 : _a.asNumber()) !== null && _b !== void 0 ? _b : 0;
};
PDFAnnotation.prototype.setFlags = function (flags) {
this.dict.set(PDFName_1.default.of('F'), PDFNumber_1.default.of(flags));
};
PDFAnnotation.prototype.hasFlag = function (flag) {
var flags = this.getFlags();
return (flags & flag) !== 0;
};
PDFAnnotation.prototype.setFlag = function (flag) {
var flags = this.getFlags();
this.setFlags(flags | flag);
};
PDFAnnotation.prototype.clearFlag = function (flag) {
var flags = this.getFlags();
this.setFlags(flags & ~flag);
};
PDFAnnotation.prototype.setFlagTo = function (flag, enable) {
if (enable)
this.setFlag(flag);
else
this.clearFlag(flag);
};
PDFAnnotation.fromDict = function (dict) { return new PDFAnnotation(dict); };
return PDFAnnotation;
}());
exports.default = PDFAnnotation;
//# sourceMappingURL=PDFAnnotation.js.map