progressdelegate.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/

#include "progressdelegate.h"
#include <QApplication>
#include "util.h"

namespace LC::Util
{
    ProgressDelegate::ProgressDelegate (ProgressGetter_t&& progress, QObject *parent)
    : QStyledItemDelegate { parent }
    , ProgressGetter_ { std::move (progress) }
    {
    }

    void ProgressDelegate::paint (QPainter *painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
    {
        const auto& progress = ProgressGetter_ (index);
        if (!progress)
        {
            QStyledItemDelegate::paint (painter, option, index);
            return;
        }

        const auto style = option.widget ? option.widget->style () : QApplication::style ();
        style->drawPrimitive (QStyle::PE_PanelItemViewItem, &option, painter, option.widget);

        QStyleOptionProgressBar progressBarOption;
        progressBarOption.state = option.state | QStyle::StateFlag::State_Horizontal;
        progressBarOption.direction = option.direction;
        progressBarOption.rect = option.rect;
        progressBarOption.fontMetrics = option.fontMetrics;
        progressBarOption.palette = option.palette;
        progressBarOption.textAlignment = Qt::AlignCenter;
        progressBarOption.textVisible = true;

        progressBarOption.minimum = progress->Minimum_;
        progressBarOption.maximum = progress->Maximum_;
        progressBarOption.progress = progress->Progress_;
        progressBarOption.text = ElideProgressBarText (progress->Text_, option);

        style->drawControl (QStyle::CE_ProgressBar, &progressBarOption, painter, option.widget);
    }
}