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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#pragma once
#include "utils_global.h"
#include <QKeySequence>
#include <QTextCursor>
QT_BEGIN_NAMESPACE
class QKeyEvent;
class QPlainTextEdit;
QT_END_NAMESPACE
namespace Utils {
class QTCREATOR_UTILS_EXPORT MultiTextCursor
{
public:
MultiTextCursor();
explicit MultiTextCursor(const QList<QTextCursor> &cursors);
/// replace all cursors with \param cursors and the last one will be the new main cursors
void setCursors(const QList<QTextCursor> &cursors);
const QList<QTextCursor> cursors() const;
/// \returns whether this multi cursor contains any cursor
bool isNull() const;
/// \returns whether this multi cursor contains more than one cursor
bool hasMultipleCursors() const;
/// \returns the number of cursors handled by this cursor
int cursorCount() const;
/// the \param cursor that is appended by added by \brief addCursor
/// will be interpreted as the new main cursor
void addCursor(const QTextCursor &cursor);
void addCursors(const QList<QTextCursor> &cursors);
/// convenience function that removes the old main cursor and appends
/// \param cursor as the new main cursor
void replaceMainCursor(const QTextCursor &cursor);
/// \returns the main cursor
QTextCursor mainCursor() const;
/// \returns the main cursor and removes it from this multi cursor
QTextCursor takeMainCursor();
void beginEditBlock();
void endEditBlock();
/// merges overlapping cursors together
void mergeCursors();
/// applies the move key event \param e to all cursors in this multi cursor
bool handleMoveKeyEvent(QKeyEvent *e, QPlainTextEdit *edit, bool camelCaseNavigationEnabled);
/// applies the move \param operation to all cursors in this multi cursor \param n times
/// with the move \param mode
void movePosition(QTextCursor::MoveOperation operation, QTextCursor::MoveMode mode, int n = 1);
/// \returns whether any cursor has a selection
bool hasSelection() const;
/// \returns the selected text of all cursors that have a selection separated by
/// a newline character
QString selectedText() const;
/// removes the selected text of all cursors that have a selection from the document
void removeSelectedText();
/// inserts \param text into all cursors, potentially removing correctly selected text
void insertText(const QString &text, bool selectNewText = false);
bool operator==(const MultiTextCursor &other) const;
bool operator!=(const MultiTextCursor &other) const;
using iterator = QList<QTextCursor>::iterator;
using const_iterator = QList<QTextCursor>::const_iterator;
iterator begin() { return m_cursors.begin(); }
iterator end() { return m_cursors.end(); }
const_iterator begin() const { return m_cursors.begin(); }
const_iterator end() const { return m_cursors.end(); }
const_iterator constBegin() const { return m_cursors.constBegin(); }
const_iterator constEnd() const { return m_cursors.constEnd(); }
static bool multiCursorAddEvent(QKeyEvent *e, QKeySequence::StandardKey matchKey);
private:
QList<QTextCursor> m_cursors;
};
} // namespace Utils
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