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Support Annotations, without appearance streams, with bogus /Rect-entries (issue 13447)

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This extends PR 13106 to apply not only to empty /Rect-entries, but also to bogus /Rect-entries for various Annotation-types.
This commit is contained in:
Jonas Jenwald 2021-05-27 13:13:10 +02:00
parent a6447f2ca2
commit 52c13326cd
1 changed files with 44 additions and 13 deletions
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57
src/core/annotation.js
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@ -23,7 +23,6 @@ import {
assert,
escapeString,
getModificationDate,
isArrayEqual,
isAscii,
isString,
OPS,
@ -2422,17 +2421,19 @@ class LineAnnotation extends MarkupAnnotation {
}
const fillAlpha = fillColor ? strokeAlpha : null;
const borderWidth = this.borderStyle.width;
const borderWidth = this.borderStyle.width || 1,
borderAdjust = 2 * borderWidth;
// If the /Rect-entry is empty, create a fallback rectangle such that we
// get similar rendering/highlighting behaviour as in Adobe Reader.
if (isArrayEqual(this.rectangle, [0, 0, 0, 0])) {
this.rectangle = [
this.data.lineCoordinates[0] - 2 * borderWidth,
this.data.lineCoordinates[1] - 2 * borderWidth,
this.data.lineCoordinates[2] + 2 * borderWidth,
this.data.lineCoordinates[3] + 2 * borderWidth,
];
// If the /Rect-entry is empty/wrong, create a fallback rectangle so that
// we get similar rendering/highlighting behaviour as in Adobe Reader.
const bbox = [
this.data.lineCoordinates[0] - borderAdjust,
this.data.lineCoordinates[1] - borderAdjust,
this.data.lineCoordinates[2] + borderAdjust,
this.data.lineCoordinates[3] + borderAdjust,
];
if (!Util.intersect(this.rectangle, bbox)) {
this.rectangle = bbox;
}
this._setDefaultAppearance({
@ -2603,7 +2604,21 @@ class PolylineAnnotation extends MarkupAnnotation {
: [0, 0, 0];
const strokeAlpha = parameters.dict.get("CA");
const borderWidth = this.borderStyle.width || 1;
const borderWidth = this.borderStyle.width || 1,
borderAdjust = 2 * borderWidth;
// If the /Rect-entry is empty/wrong, create a fallback rectangle so that
// we get similar rendering/highlighting behaviour as in Adobe Reader.
const bbox = [Infinity, Infinity, -Infinity, -Infinity];
for (const vertex of this.data.vertices) {
bbox[0] = Math.min(bbox[0], vertex.x - borderAdjust);
bbox[1] = Math.min(bbox[1], vertex.y - borderAdjust);
bbox[2] = Math.max(bbox[2], vertex.x + borderAdjust);
bbox[3] = Math.max(bbox[3], vertex.y + borderAdjust);
}
if (!Util.intersect(this.rectangle, bbox)) {
this.rectangle = bbox;
}
this._setDefaultAppearance({
xref: parameters.xref,
@ -2675,7 +2690,23 @@ class InkAnnotation extends MarkupAnnotation {
: [0, 0, 0];
const strokeAlpha = parameters.dict.get("CA");
const borderWidth = this.borderStyle.width || 1;
const borderWidth = this.borderStyle.width || 1,
borderAdjust = 2 * borderWidth;
// If the /Rect-entry is empty/wrong, create a fallback rectangle so that
// we get similar rendering/highlighting behaviour as in Adobe Reader.
const bbox = [Infinity, Infinity, -Infinity, -Infinity];
for (const inkLists of this.data.inkLists) {
for (const vertex of inkLists) {
bbox[0] = Math.min(bbox[0], vertex.x - borderAdjust);
bbox[1] = Math.min(bbox[1], vertex.y - borderAdjust);
bbox[2] = Math.max(bbox[2], vertex.x + borderAdjust);
bbox[3] = Math.max(bbox[3], vertex.y + borderAdjust);
}
}
if (!Util.intersect(this.rectangle, bbox)) {
this.rectangle = bbox;
}
this._setDefaultAppearance({
xref: parameters.xref,