ZenBrowserMirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/zen-browser/pdf.js.git synced 2025-07-08 17:30:09 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Introduce helper functions for parsing /Matrix and /BBox arrays

Browse source
This commit is contained in:
Jonas Jenwald 2024-04-30 08:47:14 +02:00
parent 52f7ff155d
commit 9b41bfc374
5 changed files with 63 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/core/pattern.js
View file

@ -25,6 +25,8 @@ import {
import {
isBooleanArray,
isNumberArray,
lookupMatrix,
lookupNormalRect,
MissingDataException,
} from "./core_utils.js";
import { BaseStream } from "./base_stream.js";
@ -129,8 +131,7 @@ class RadialAxialShading extends BaseShading {
pdfFunctionFactory,
localColorSpaceCache,
});
const bbox = dict.getArray("BBox");
this.bbox = isNumberArray(bbox, 4) ? Util.normalizeRect(bbox) : null;
this.bbox = lookupNormalRect(dict.getArray("BBox"), null);
let t0 = 0.0,
t1 = 1.0;
@ -461,8 +462,7 @@ class MeshShading extends BaseShading {
}
const dict = stream.dict;
this.shadingType = dict.get("ShadingType");
const bbox = dict.getArray("BBox");
this.bbox = isNumberArray(bbox, 4) ? Util.normalizeRect(bbox) : null;
this.bbox = lookupNormalRect(dict.getArray("BBox"), null);
const cs = ColorSpace.parse({
cs: dict.getRaw("CS") || dict.getRaw("ColorSpace"),
xref,
@ -988,12 +988,8 @@ class DummyShading extends BaseShading {
}
function getTilingPatternIR(operatorList, dict, color) {
let matrix = dict.getArray("Matrix");
if (!isNumberArray(matrix, 6)) {
matrix = IDENTITY_MATRIX;
}
let bbox = dict.getArray("BBox");
bbox = isNumberArray(bbox, 4) ? Util.normalizeRect(bbox) : null;
const matrix = lookupMatrix(dict.getArray("Matrix"), IDENTITY_MATRIX);
const bbox = lookupNormalRect(dict.getArray("BBox"), null);
// Ensure that the pattern has a non-zero width and height, to prevent errors
// in `pattern_helper.js` (fixes issue8330.pdf).
if (!bbox || bbox[2] - bbox[0] === 0 || bbox[3] - bbox[1] === 0) {