view src/selectablelabel.cpp @ 633:db62a0cb3037

* Added setting to specify that diff command should be run once for each selected file, rather than passing all file names to diff command (p4merge doesn't like being given many files)

/* -*- 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) 2012 Chris Cannam
    Copyright (c) 2012 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.
*/

#include "selectablelabel.h"

#include "debug.h"

#include <iostream>
#include <QApplication>

SelectableLabel::SelectableLabel(QWidget *p) :
    QLabel(p),
    m_selected(false)
{
    setTextFormat(Qt::RichText);
    setupStyle();
    setOpenExternalLinks(true);
}

SelectableLabel::~SelectableLabel()
{
}

void
SelectableLabel::setUnselectedText(QString text)
{
    if (m_unselectedText == text) return;
    m_unselectedText = text;
    if (!m_selected) {
        setText(m_unselectedText);
        resize(sizeHint());
    }
}

void
SelectableLabel::setSelectedText(QString text)
{
    if (m_selectedText == text) return;
    m_selectedText = text;
    if (m_selected) {
        setText(m_selectedText);
        resize(sizeHint());
    }
}

void
SelectableLabel::setupStyle()
{
    QPalette palette = QApplication::palette();

    setTextInteractionFlags(Qt::LinksAccessibleByKeyboard |
                            Qt::LinksAccessibleByMouse |
                            Qt::TextSelectableByMouse);

    if (m_selected) {
        setStyleSheet
            (QString("QLabel { background: %1; border: 1px solid %2; padding: 7px } ")
             .arg(palette.light().color().name())
             .arg(palette.dark().color().name()));
    } else {
        setStyleSheet
            (QString("QLabel { border: 0; padding: 7px } "));
    }
}    

void
SelectableLabel::setSelected(bool s)
{
    if (m_selected == s) return;
    m_selected = s;
    if (m_selected) {
        setText(m_selectedText);
    } else {
        setText(m_unselectedText);
    }
    setupStyle();
    parentWidget()->resize(parentWidget()->sizeHint());
}

void
SelectableLabel::toggle()
{
    setSelected(!m_selected);
}

void
SelectableLabel::mousePressEvent(QMouseEvent *e)
{
    m_swallowRelease = !m_selected;
    setSelected(true);
    QLabel::mousePressEvent(e);
    emit selectionChanged();
}

void
SelectableLabel::mouseDoubleClickEvent(QMouseEvent *e)
{
    QLabel::mouseDoubleClickEvent(e);
    emit doubleClicked();
}

void
SelectableLabel::mouseReleaseEvent(QMouseEvent *e)
{
    if (!m_swallowRelease) QLabel::mouseReleaseEvent(e);
    m_swallowRelease = false;
}

void
SelectableLabel::enterEvent(QEvent *)
{
//    std::cerr << "enterEvent" << std::endl;
//    QPalette palette = QApplication::palette();
//    palette.setColor(QPalette::Window, Qt::gray);
//    setStyleSheet("background: gray");
//    setPalette(palette);
}

void
SelectableLabel::leaveEvent(QEvent *)
{
//    std::cerr << "leaveEvent" << std::endl;
//    setStyleSheet("background: white");
//    QPalette palette = QApplication::palette();
//    palette.setColor(QPalette::Window, Qt::gray);
//    setPalette(palette);
}