/usr/include/avogadro/textmatrixeditor.h is in libavogadro-dev 1.2.0-3.
This file is owned by root:root, with mode 0o644.
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TextMatrixEditor - Text editor that edits 3x3 matrices
Copyright (C) 2011 David C. Lonie
This file is part of the Avogadro molecular editor project.
For more information, see <http://avogadro.cc/>
Avogadro is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Avogadro is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
**********************************************************************/
#ifndef TEXTMATRIXEDITOR_H
#define TEXTMATRIXEDITOR_H
#include "config.h"
#include <avogadro/global.h> // For A_EXPORT
#include <QtGui/QTextEdit>
#include <Eigen/Core>
class QRegExp;
namespace Avogadro
{
/**
* @class TextMatrixEditor textmatrixeditor.h <avogadro/textmatrixeditor.h>
* @brief Widget to edit 3x3 matrices in plain text
* @author David C. Lonie
*
* TextMatrixEditor is a QTextEdit that displays and allows editing of a 3x3
* matrix as plain text. Input is validated with each keystroke, and the text
* turns red if the input is invalid. The matrix can be set/get with matrix()
* and setMatrix(). The delimiters used to separate columns can be set and
* accessed through the pointer returned by delimiters(). The default
* delimiter regexp is
* QRegExp("\\s+|,|;|\\||\\[|\\]|\\{|\\}|\\(|\\)|\\&|/|<|>"). resetMatrix()
* will replace the text with the last known good matrix.
*/
class A_EXPORT TextMatrixEditor : public QTextEdit
{
Q_OBJECT
public:
//! Constructor
explicit TextMatrixEditor(QWidget *parent = 0);
//! Destructor
virtual ~TextMatrixEditor();
//! @return Allowed column separators. See class definition for default.
QRegExp * delimiters() {return this->m_delimiters;}
//! @return Allowed column separators. See class definition for default
const QRegExp * delimiters() const {return this->m_delimiters;}
//! @return The current matrix
Eigen::Matrix3d matrix() const;
signals:
//! Emitted when the text cannot be parsed into a matrix
void isInvalid();
//! Emitted when the text has been parsed into a matrix
void isValid();
public slots:
//! Set the matrix. This will update the text.
void setMatrix(const Eigen::Matrix3d &mat);
//! Reset the text to the last known good matrix.
void resetMatrix();
protected slots:
/**
* Check if input can be parsed. Sets m_matrix, emits isValid(), and returns
* true if so. Otherwise emits isInvalid() and returns false.
*/
bool validate();
//! Turn the text red.
void markAsInvalid();
//! Reset the text appearance.
void markAsValid();
protected:
//! Stores the text properties while invalid.
QTextCharFormat *m_charFormat;
//! Acceptable column separators. See class definition for default.
QRegExp *m_delimiters;
//! Stores the current (or last known good) matrix.
Eigen::Matrix3d m_matrix;
};
} // namespace Avogadro
#endif // TEXTMATRIXEDITOR_H
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