Files
qt-creator/src/libs/utils/changeset.h
Christian Kandeler 934641f45c TextEditor: Sort indent ranges before applying
It can easily happen that callers insert indent ranges out of order, and
without sorting the indentation done earlier in the file is not
considered for the later parts, leading to inconsistent results.

Fixes: QTCREATORBUG-18929
Change-Id: Ice2abe92d54446bcdd102c6a1f822262a8533543
Reviewed-by: David Schulz <david.schulz@qt.io>
2020-06-15 13:46:11 +00:00

130 lines
3.5 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
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** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/
#pragma once
#include "utils_global.h"
#include <QString>
#include <QList>
QT_FORWARD_DECLARE_CLASS(QTextCursor)
namespace Utils {
class QTCREATOR_UTILS_EXPORT ChangeSet
{
public:
struct EditOp {
enum Type
{
Unset,
Replace,
Move,
Insert,
Remove,
Flip,
Copy
};
EditOp() = default;
EditOp(Type t): type(t) {}
Type type = Unset;
int pos1 = 0;
int pos2 = 0;
int length1 = 0;
int length2 = 0;
QString text;
};
struct Range {
Range() = default;
Range(int start, int end)
: start(start), end(end) {}
int start = 0;
int end = 0;
};
public:
ChangeSet();
ChangeSet(const QList<EditOp> &operations);
bool isEmpty() const;
QList<EditOp> operationList() const;
void clear();
bool replace(const Range &range, const QString &replacement);
bool remove(const Range &range);
bool move(const Range &range, int to);
bool flip(const Range &range1, const Range &range2);
bool copy(const Range &range, int to);
bool replace(int start, int end, const QString &replacement);
bool remove(int start, int end);
bool move(int start, int end, int to);
bool flip(int start1, int end1, int start2, int end2);
bool copy(int start, int end, int to);
bool insert(int pos, const QString &text);
bool hadErrors();
void apply(QString *s);
void apply(QTextCursor *textCursor);
private:
// length-based API.
bool replace_helper(int pos, int length, const QString &replacement);
bool move_helper(int pos, int length, int to);
bool remove_helper(int pos, int length);
bool flip_helper(int pos1, int length1, int pos2, int length2);
bool copy_helper(int pos, int length, int to);
bool hasOverlap(int pos, int length) const;
QString textAt(int pos, int length);
void doReplace(const EditOp &replace, QList<EditOp> *replaceList);
void convertToReplace(const EditOp &op, QList<EditOp> *replaceList);
void apply_helper();
private:
QString *m_string;
QTextCursor *m_cursor;
QList<EditOp> m_operationList;
bool m_error;
};
inline bool operator<(const ChangeSet::Range &r1, const ChangeSet::Range &r2)
{
return r1.start < r2.start;
}
} // namespace Utils