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102 lines
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102 lines
0 B
14 years ago
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/**
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******************************************************************************
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*
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* @file basevalidatinglineedit.h
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
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* @brief
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* @see The GNU Public License (GPL) Version 3
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* @defgroup
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* @{
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef BASEVALIDATINGLINEEDIT_H
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#define BASEVALIDATINGLINEEDIT_H
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#include "utils_global.h"
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#include <QtGui/QLineEdit>
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namespace Utils {
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struct BaseValidatingLineEditPrivate;
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/**
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* Base class for validating line edits that performs validation in a virtual
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* validate() function to be implemented in derived classes.
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* When invalid, the text color will turn red and a tooltip will
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* contain the error message. This approach is less intrusive than a
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* QValidator which will prevent the user from entering certain characters.
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*
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* The widget has a concept of an "initialText" which can be something like
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* "<Enter name here>". This results in state 'DisplayingInitialText', which
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* is not valid, but is not marked red.
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*/
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class QTCREATOR_UTILS_EXPORT BaseValidatingLineEdit : public QLineEdit
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{
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Q_OBJECT
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Q_DISABLE_COPY(BaseValidatingLineEdit)
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Q_PROPERTY(QString initialText READ initialText WRITE setInitialText DESIGNABLE true)
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Q_PROPERTY(QColor errorColor READ errorColor WRITE setErrorColor DESIGNABLE true)
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public:
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enum State { Invalid, DisplayingInitialText, Valid };
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explicit BaseValidatingLineEdit(QWidget *parent = 0);
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virtual ~BaseValidatingLineEdit();
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State state() const;
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bool isValid() const;
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QString errorMessage() const;
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QString initialText() const;
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void setInitialText(const QString &);
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QColor errorColor() const;
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void setErrorColor(const QColor &);
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// Trigger an update (after changing settings)
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void triggerChanged();
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static QColor textColor(const QWidget *w);
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static void setTextColor(QWidget *w, const QColor &c);
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signals:
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void validChanged();
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void validChanged(bool validState);
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void validReturnPressed();
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protected:
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virtual bool validate(const QString &value, QString *errorMessage) const = 0;
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protected slots:
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// Custom behaviour can be added here. The base implementation must
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// be called.
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virtual void slotReturnPressed();
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virtual void slotChanged(const QString &t);
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private:
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BaseValidatingLineEditPrivate *m_bd;
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};
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} // namespace Utils
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#endif // BASEVALIDATINGLINEEDIT_H
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