qBittorrent/src/gui/lineedit/src/lineedit.cpp

/****************************************************************************
**
** 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 <algorithm>
#include <QStyle>
#include <QToolButton>
#include <QResizeEvent>

LineEdit::LineEdit(QWidget *parent)
    : QLineEdit(parent)
{
    QPixmap pixmap1(":/lineeditimages/search.png");
    searchButton = new QToolButton(this);
    searchButton->setIcon(QIcon(pixmap1));
    searchButton->setIconSize(pixmap1.size());
    searchButton->setCursor(Qt::ArrowCursor);
    searchButton->setStyleSheet("QToolButton { border: none; padding: 2px; }");
    QSize searchButtonHint = searchButton->sizeHint();

    QSize clearButtonHint(0, 0);
    setClearButtonEnabled(true);
    setStyleSheet(QString("QLineEdit { padding-left: %1px; }").arg(searchButtonHint.width()));  // padding between text and widget borders

    QSize widgetHint = sizeHint();
    int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
    setMaximumHeight(std::max({ widgetHint.height(), searchButtonHint.height(), clearButtonHint.height() }) + frameWidth * 2);
    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
}

void LineEdit::resizeEvent(QResizeEvent *e)
{
    int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);

    QSize sz = searchButton->sizeHint();
    searchButton->move(frameWidth, (e->size().height() - sz.height()) / 2);
}