/****************************************************************************
**
** Copyright (c) 2007 Trolltech ASA <info@trolltech.com>
**
** Use, modification and distribution is allowed without limitation,
** warranty, liability or support of any kind.
**
****************************************************************************/

#include "LineEdit.h"

#include <QtGui/QToolButton>
#include <QtGui/QStyle>

#include "core/DataPath.h"

LineEdit::LineEdit(QWidget* parent)
    : QLineEdit(parent)
{
    m_clearButton = new QToolButton(this);
    m_clearButton->setObjectName("clearButton");
    QIcon icon = dataPath()->icon("action", "edit-clear-locationbar-rtl");
    m_clearButton->setIcon(icon);
    m_clearButton->setCursor(Qt::ArrowCursor);
    m_clearButton->setStyleSheet("QToolButton { border: none; padding: 0px; }");
    m_clearButton->hide();
    connect(m_clearButton, SIGNAL(clicked()), this, SLOT(clear()));
    connect(this, SIGNAL(textChanged(const QString&)), this, SLOT(updateCloseButton(const QString&)));
    int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
    setStyleSheet(QString("QLineEdit { padding-right: %1px; } ")
                  .arg(m_clearButton->sizeHint().width() + frameWidth + 1));
    QSize msz = minimumSizeHint();
    setMinimumSize(qMax(msz.width(), m_clearButton->sizeHint().height() + frameWidth * 2 + 2),
                   qMax(msz.height(), m_clearButton->sizeHint().height() + frameWidth * 2 + 2));
}

void LineEdit::resizeEvent(QResizeEvent* event)
{
    Q_UNUSED(event);

    QSize sz = m_clearButton->sizeHint();
    int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
    m_clearButton->move(rect().right() - frameWidth - sz.width(),
                      (rect().bottom() + 1 - sz.height())/2);
}

void LineEdit::updateCloseButton(const QString& text)
{
    m_clearButton->setVisible(!text.isEmpty());
}