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TextEditor: handle syntax highlight in batches

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Use an elapsed timer in the syntax highlighter to periodically return
from the highlight and push a continue highlight to the end of the event
loop.
This allows the user to interact with the editor in between those
batches. If the user modifies the document in between highlighting
batches, the area that still needs a rehighlight is increased if needed.

This also reverts 62ea85ee6a and the
related changes.

Task-number: QTCREATORBUG-28727
Change-Id: I7c394dbdff658330bb72f3b68b9928980947db75
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
This commit is contained in:
David Schulz
2024-03-13 14:57:59 +01:00
parent 8500dd03bf
commit d4e775ebc6
26 changed files with 242 additions and 791 deletions
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7
src/plugins/texteditor/highlighter_test.cpp
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@@ -1,11 +1,10 @@
// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "syntaxhighlighterrunner.h"
#include "highlighter_test.h"
#include "fontsettings.h"
#include "syntaxhighlighter.h"
#include "textdocument.h"
#include "texteditor.h"
#include "texteditorsettings.h"
@@ -61,7 +60,7 @@ void GenerigHighlighterTests::initTestCase()
m_editor->editorWidget()->configureGenericHighlighter(
Utils::mimeTypeForName(Utils::Constants::JSON_MIMETYPE));
QVERIFY(m_editor);
m_editor->textDocument()->syntaxHighlighterRunner()->rehighlight();
m_editor->textDocument()->syntaxHighlighter()->rehighlight();
}
using FormatRanges = QList<QTextLayout::FormatRange>;
@@ -214,7 +213,7 @@ void GenerigHighlighterTests::testPreeditText()
block.layout()->setPreeditArea(7, "uaf");
c.endEditBlock();
m_editor->textDocument()->syntaxHighlighterRunner()->rehighlight();
m_editor->textDocument()->syntaxHighlighter()->rehighlight();
const FormatRanges formatRanges = {{0, 4, toFormat(C_VISUAL_WHITESPACE)},
{4, 3, toFormat(C_TYPE)},