view src/clickablelabel.h @ 672:88fa1544b407

Merge from branch qt5. There's much more to be done before we can make another release, but clearly it's going to be done using qt5
author Chris Cannam
date Wed, 05 Dec 2018 09:44:10 +0000
parents ae67ea0af696
children
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    EasyMercurial

    Based on HgExplorer by Jari Korhonen
    Copyright (c) 2010 Jari Korhonen
    Copyright (c) 2013 Chris Cannam
    Copyright (c) 2013 Queen Mary, University of London
    
    This program 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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _CLICKABLE_LABEL_H_
#define _CLICKABLE_LABEL_H_

#include "squeezedlabel.h"

#include <QMouseEvent>

class ClickableLabel : public SqueezedLabel
{
    Q_OBJECT

    Q_PROPERTY(bool mouseUnderline READ mouseUnderline WRITE setMouseUnderline)

public:
    ClickableLabel(const QString &text, QWidget *parent = 0) :
        SqueezedLabel(text, parent),
	m_naturalText(text)
    { }

    ClickableLabel(QWidget *parent = 0) :
	SqueezedLabel(parent)
    { }

    ~ClickableLabel()
    { }

    void setText(const QString &t) {
	m_naturalText = t;
	SqueezedLabel::setText(t);
    }

    bool mouseUnderline() const {
	return m_mouseUnderline;
    }

    void setMouseUnderline(bool mu) {
	m_mouseUnderline = mu;
	if (mu) {
	    setTextFormat(Qt::RichText);
	    setCursor(Qt::PointingHandCursor);
	}
    }

signals:
    void clicked();

protected:
    virtual void enterEvent(QEvent *) {
	if (m_mouseUnderline) {
	    SqueezedLabel::setText(tr("<u>%1</u>").arg(m_naturalText));
	}
    }

    virtual void leaveEvent(QEvent *) {
	if (m_mouseUnderline) {
	    SqueezedLabel::setText(m_naturalText);
	}
    }

    virtual void mousePressEvent(QMouseEvent *ev) {
        if (ev->button() == Qt::LeftButton) {
            emit clicked();
        } else {
            SqueezedLabel::mousePressEvent(ev);
        }
    }

private:
    bool m_mouseUnderline;
    QString m_naturalText;
};

#endif