From e6a0c0daeecfc7ad0cba7e9b79b557bd08f2d48a Mon Sep 17 00:00:00 2001
From: Albert S <mail@quitesimple.org>
Date: Sat, 27 Aug 2022 22:16:48 +0200
Subject: [PATCH] gui: PreviewGeneratorPdf: Only highlight whole words

Only highlight whole words, which is less confusing
---
 gui/previewgeneratorpdf.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gui/previewgeneratorpdf.cpp b/gui/previewgeneratorpdf.cpp
index be81f1e..47177b0 100644
--- a/gui/previewgeneratorpdf.cpp
+++ b/gui/previewgeneratorpdf.cpp
@@ -1,5 +1,6 @@
 #include <QMutexLocker>
 #include <QPainter>
+#include <QRegularExpression>
 #include "previewgeneratorpdf.h"
 
 static QMutex cacheMutex;
@@ -17,6 +18,7 @@ Poppler::Document *PreviewGeneratorPdf::document(QString path)
 		return nullptr;
 	}
 	result->setRenderHint(Poppler::Document::TextAntialiasing);
+
 	QMutexLocker locker(&cacheMutex);
 	documentcache.insert(path, result);
 	locker.unlock();
@@ -45,7 +47,8 @@ QSharedPointer<PreviewResult> PreviewGeneratorPdf::generate(RenderConfig config,
 	QImage img = pdfPage->renderToImage(config.scaleX, config.scaleY);
 	for(QString &word : config.wordsToHighlight)
 	{
-		QList<QRectF> rects = pdfPage->search(word, Poppler::Page::SearchFlag::IgnoreCase);
+		QList<QRectF> rects =
+			pdfPage->search(word, Poppler::Page::SearchFlag::IgnoreCase | Poppler::Page::SearchFlag::WholeWords);
 		for(QRectF &rect : rects)
 		{
 			QPainter painter(&img);