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dc6e18b5a2
* also consider Qt::Key_Enter (NUMPAD) * signal returnPressedUnemptyLine * use signal returnPressedUnemptyLine instead of returnPressed which avoids empty lines
83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/* Copyright (C) 2017
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* swift project Community / Contributors
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*
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* This file is part of swift Project. It is subject to the license terms in the LICENSE file found in the top-level
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* directory of this distribution. No part of swift project, including this file, may be copied, modified, propagated,
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* or distributed except according to the terms contained in the LICENSE file.
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*/
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#include "lineedithistory.h"
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#include <QKeyEvent>
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#include <QMenu>
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namespace BlackGui
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{
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QString CLineEditHistory::getLastEnteredLine() const
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{
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if (m_history.isEmpty()) return {};
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return m_history.first();
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}
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QString CLineEditHistory::getLastEnteredLineFormatted() const
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{
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return this->getLastEnteredLine().trimmed().simplified();
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}
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void CLineEditHistory::clearHistory()
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{
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m_history.clear();
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}
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void CLineEditHistory::keyPressEvent(QKeyEvent *event)
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{
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const int key = event->key();
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bool nonEmpty = false;
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if (key == Qt::Key_Up)
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{
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// move back in history
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if (m_history.size() > m_position)
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{
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this->setText(m_history.at(m_position++));
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}
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}
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else if (key == Qt::Key_Down)
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{
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// move forward in history
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if (m_position <= 0) { this->clear(); return; }
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if (m_position == m_history.size()) { --m_position; } // avoid need of 2xKeyDown at end
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if (m_position > 0 && m_history.size() > --m_position)
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{
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this->setText(m_history.at(m_position));
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}
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}
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else if (key == Qt::Key_Return || key == Qt::Key_Enter) // normal and keypad enter
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{
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const QString t = this->text().trimmed();
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if (!t.isEmpty())
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{
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m_history.push_front(t);
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m_position = 0;
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this->clear();
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nonEmpty = true;
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}
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}
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// default handler for event
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QLineEdit::keyPressEvent(event);
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// signal
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if (nonEmpty) { emit this->returnPressedUnemptyLine(); }
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}
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void CLineEditHistory::contextMenuEvent(QContextMenuEvent *event)
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{
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if (!event) { return; }
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QMenu *menu = this->createStandardContextMenu();
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menu->addSeparator();
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menu->addAction("Clear history");
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connect(menu->actions().last(), &QAction::triggered, this, &CLineEditHistory::clearHistory);
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menu->exec(event->globalPos());
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delete menu;
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}
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} // ns
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