forked from qt-creator/qt-creator
a7956df3ca
Replace the current license disclaimer in files by a SPDX-License-Identifier. Task-number: QTBUG-67283 Change-Id: I708fd1f9f2b73d60f57cc3568646929117825813 Reviewed-by: Eike Ziller <eike.ziller@qt.io>
96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
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#pragma once
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#include "texteditor_global.h"
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#include <texteditor/texteditorconstants.h>
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#include <QObject>
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#include <QTextLayout>
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#include <functional>
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#include <climits>
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QT_BEGIN_NAMESPACE
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class QTextDocument;
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class QSyntaxHighlighterPrivate;
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class QTextCharFormat;
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class QFont;
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class QColor;
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class QTextBlockUserData;
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class QTextEdit;
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QT_END_NAMESPACE
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namespace TextEditor {
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class FontSettings;
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class SyntaxHighlighterPrivate;
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class TEXTEDITOR_EXPORT SyntaxHighlighter : public QObject
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{
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Q_OBJECT
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Q_DECLARE_PRIVATE(SyntaxHighlighter)
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public:
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SyntaxHighlighter(QObject *parent = nullptr);
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SyntaxHighlighter(QTextDocument *parent);
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SyntaxHighlighter(QTextEdit *parent);
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~SyntaxHighlighter() override;
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void setDocument(QTextDocument *doc);
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QTextDocument *document() const;
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void setExtraFormats(const QTextBlock &block, QVector<QTextLayout::FormatRange> &&formats);
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void clearExtraFormats(const QTextBlock &block);
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void clearAllExtraFormats();
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static QList<QColor> generateColors(int n, const QColor &background);
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// Don't call in constructors of derived classes
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virtual void setFontSettings(const TextEditor::FontSettings &fontSettings);
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TextEditor::FontSettings fontSettings() const;
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void setNoAutomaticHighlighting(bool noAutomatic);
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public slots:
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void rehighlight();
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void rehighlightBlock(const QTextBlock &block);
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protected:
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void setDefaultTextFormatCategories();
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void setTextFormatCategories(int count, std::function<TextStyle(int)> formatMapping);
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QTextCharFormat formatForCategory(int categoryIndex) const;
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// implement in subclasses
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// default implementation highlights whitespace
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virtual void highlightBlock(const QString &text);
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void setFormat(int start, int count, const QTextCharFormat &format);
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void setFormat(int start, int count, const QColor &color);
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void setFormat(int start, int count, const QFont &font);
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QTextCharFormat format(int pos) const;
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void formatSpaces(const QString &text, int start = 0, int count = INT_MAX);
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void setFormatWithSpaces(const QString &text, int start, int count,
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const QTextCharFormat &format);
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int previousBlockState() const;
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int currentBlockState() const;
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void setCurrentBlockState(int newState);
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void setCurrentBlockUserData(QTextBlockUserData *data);
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QTextBlockUserData *currentBlockUserData() const;
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QTextBlock currentBlock() const;
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private:
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void setTextFormatCategories(const QVector<std::pair<int, TextStyle>> &categories);
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void reformatBlocks(int from, int charsRemoved, int charsAdded);
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void delayedRehighlight();
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QScopedPointer<SyntaxHighlighterPrivate> d_ptr;
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};
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} // namespace TextEditor
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