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/****************************************************************************
**
** Copyright (C) 2016 Pelagicore AG
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QmlLive tool.
**
** $QT_BEGIN_LICENSE:GPL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite licenses may use
** this file in accordance with the commercial license agreement provided
** with the Software or, alternatively, in accordance with the terms
** contained in a written agreement between you and The Qt Company.  For
** licensing terms and conditions see https://www.qt.io/terms-conditions.
** For further information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
** SPDX-License-Identifier: GPL-3.0
**
****************************************************************************/

#include "workspacedelegate.h"

#include "filesystemmodel.h"
#include "workspaceview.h"

WorkspaceDelegate::WorkspaceDelegate(WorkspaceView *view) :
    QStyledItemDelegate(view),
    m_view(view)
{
}

void WorkspaceDelegate::initStyleOption(QStyleOptionViewItem *option, const QModelIndex &index) const
{
    QStyledItemDelegate::initStyleOption(option, index);

    if (option) {
        QString path = m_view->model()->filePath(index);

        // Do not paint selected items any special way - only the current item
        // and the item corresponding to the active document will be
        // highlighted.
        option->state &= ~QStyle::State_Selected;

        // Highlighting in the view is suppressed with customized palette.
        // See WorkspaceView's constructor.
        QColor highlight = qApp->palette().color(QPalette::Highlight);
        QColor highlightedText = qApp->palette().color(QPalette::HighlightedText);
        option->palette.setColor(QPalette::Highlight, highlight);
        option->palette.setColor(QPalette::HighlightedText, highlightedText);

        LiveDocument document = LiveDocument::resolve(m_view->rootPath(), path);
        if (document == m_view->activeDocument()) {
            option->backgroundBrush = highlight;
            option->palette.setColor(QPalette::Base, highlight);
            option->palette.setColor(QPalette::Text, highlightedText);
        }

        if (m_view->model()->isDir(index))
            return;

        foreach (QString type, m_view->model()->allowedTypesFilter())
        {
            if (path.contains(QRegExp(type, Qt::CaseInsensitive, QRegExp::Wildcard)))
                return;
        }

        option->state &= ~QStyle::State_Enabled;

        QColor disabled = option->palette.color(QPalette::Disabled, QPalette::Text);
        QColor enabled = option->palette.color(QPalette::Normal, QPalette::Text);

        if (disabled == enabled) {
            QColor t = option->palette.color(QPalette::Disabled, QPalette::Text);
            QColor b = option->palette.color(QPalette::Disabled, QPalette::Background);

            QColor selection = QColor::fromRgb((t.red() + b.red()) / 2, (t.green() + b.green()) / 2, (t.blue() + b.blue()) / 2);

            option->palette.setColor(QPalette::Disabled, QPalette::Text, selection);
        }
    }
}