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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include "texteditor_global.h"
#include <QTextBlock>
QT_BEGIN_NAMESPACE
class QSettings;
QT_END_NAMESPACE
namespace TextEditor {
// Tab settings: Data type the GeneralSettingsPage acts on
// with some convenience functions for formatting.
class TEXTEDITOR_EXPORT TabSettings
{
public:
enum TabPolicy {
SpacesOnlyTabPolicy = 0,
TabsOnlyTabPolicy = 1,
MixedTabPolicy = 2
};
// This enum must match the indexes of continuationAlignBehavior widget
enum ContinuationAlignBehavior {
NoContinuationAlign = 0,
ContinuationAlignWithSpaces = 1,
ContinuationAlignWithIndent = 2
};
TabSettings() = default;
TabSettings(TabPolicy tabPolicy, int tabSize,
int indentSize, ContinuationAlignBehavior continuationAlignBehavior);
void toSettings(const QString &category, QSettings *s) const;
void fromSettings(const QString &category, QSettings *s);
QVariantMap toMap() const;
void fromMap(const QVariantMap &map);
int lineIndentPosition(const QString &text) const;
int columnAt(const QString &text, int position) const;
int columnAtCursorPosition(const QTextCursor &cursor) const;
int positionAtColumn(const QString &text, int column, int *offset = nullptr, bool allowOverstep = false) const;
int columnCountForText(const QString &text, int startColumn = 0) const;
int indentedColumn(int column, bool doIndent = true) const;
QString indentationString(int startColumn, int targetColumn, int padding, const QTextBlock ¤tBlock = QTextBlock()) const;
QString indentationString(const QString &text) const;
int indentationColumn(const QString &text) const;
static int maximumPadding(const QString &text);
void indentLine(const QTextBlock &block, int newIndent, int padding = 0) const;
void reindentLine(QTextBlock block, int delta) const;
bool isIndentationClean(const QTextBlock &block, const int indent) const;
bool guessSpacesForTabs(const QTextBlock &block) const;
friend bool operator==(const TabSettings &t1, const TabSettings &t2) { return t1.equals(t2); }
friend bool operator!=(const TabSettings &t1, const TabSettings &t2) { return !t1.equals(t2); }
static int firstNonSpace(const QString &text);
static inline bool onlySpace(const QString &text) { return firstNonSpace(text) == text.length(); }
static int spacesLeftFromPosition(const QString &text, int position);
static bool cursorIsAtBeginningOfLine(const QTextCursor &cursor);
static int trailingWhitespaces(const QString &text);
static void removeTrailingWhitespace(QTextCursor cursor, QTextBlock &block);
TabPolicy m_tabPolicy = SpacesOnlyTabPolicy;
int m_tabSize = 8;
int m_indentSize = 4;
ContinuationAlignBehavior m_continuationAlignBehavior = ContinuationAlignWithSpaces;
bool equals(const TabSettings &ts) const;
};
} // namespace TextEditor
Q_DECLARE_METATYPE(TextEditor::TabSettings)
Q_DECLARE_METATYPE(TextEditor::TabSettings::TabPolicy)
Q_DECLARE_METATYPE(TextEditor::TabSettings::ContinuationAlignBehavior)
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