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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include "qtextcursor_p.h"
#include "qtextdocument_p.h"
#include "qtextblock_p.h"
QT_BEGIN_NAMESPACE
namespace Utils {
class TextFrame;
class TextTable;
class TextTableCell;
TextCursor::TextCursor(TextDocument *document) : m_document(document) { }
bool TextCursor::movePosition(TextCursor::MoveOperation op, TextCursor::MoveMode mode, int n)
{
Q_UNUSED(n);
switch (op) {
case NoMove:
return true;
case Start:
m_position = 0;
break;
case PreviousCharacter:
while (--n >= 0) {
if (m_position == 0)
return false;
--m_position;
}
break;
case End:
m_position = m_document->characterCount();
break;
case NextCharacter:
while (--n >= 0) {
if (m_position == m_document->characterCount())
return false;
++m_position;
}
break;
}
if (mode == MoveAnchor)
m_anchor = m_position;
return false;
}
int TextCursor::position() const
{
return m_position;
}
void TextCursor::setPosition(int pos, Utils::TextCursor::MoveMode mode)
{
m_position = pos;
if (mode == MoveAnchor)
m_anchor = pos;
}
QString TextCursor::selectedText() const
{
return m_document->toPlainText().mid(qMin(m_position, m_anchor), qAbs(m_position - m_anchor));
}
void TextCursor::clearSelection()
{
m_anchor = m_position;
}
TextDocument *TextCursor::document() const
{
return m_document;
}
void TextCursor::insertText(const QString &text)
{
const QString orig = m_document->toPlainText();
const QString left = orig.left(qMin(m_position, m_anchor));
const QString right = orig.mid(qMax(m_position, m_anchor));
m_document->setPlainText(left + text + right);
}
TextBlock TextCursor::block() const
{
TextBlock current = m_document->firstBlock();
while (current.isValid()) {
if (current.position() <= position()
&& current.position() + current.length() > current.position())
break;
current = current.next();
}
return current;
}
int TextCursor::positionInBlock() const
{
return m_position - block().position();
}
int TextCursor::blockNumber() const
{
return block().blockNumber();
}
void TextCursor::removeSelectedText()
{
insertText(QString());
}
int TextCursor::selectionEnd() const
{
return qMax(m_position, m_anchor);
}
bool TextCursor::isNull() const
{
return m_document == nullptr;
}
} // namespace Utils
QT_END_NAMESPACE