notificationscrollarea.h

Go to the documentation of this file.

/*
    Copyright © 2015-2019 by The qTox Project Contributors
 
    This file is part of qTox, a Qt-based graphical interface for Tox.
 
    qTox is libre 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 3 of the License, or
    (at your option) any later version.
 
    qTox is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with qTox.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#include "tool/adjustingscrollarea.h"
#include <QHash>
 
class GenericChatroomWidget;
class NotificationEdgeWidget;
 
class NotificationScrollArea final : public AdjustingScrollArea
{
public:
    explicit NotificationScrollArea(QWidget* parent = nullptr);
 
public slots:
    void trackWidget(GenericChatroomWidget* widget);
    void updateVisualTracking();
    void updateTracking(GenericChatroomWidget* widget);
 
protected:
    void resizeEvent(QResizeEvent* event) final;
 
private slots:
    void findNextWidget();
    void findPreviousWidget();
 
private:
    enum Visibility : uint8_t
    {
        Visible,
        Above,
        Below
    };
    Visibility widgetVisible(QWidget* widget) const;
    void recalculateTopEdge();
    void recalculateBottomEdge();
 
    QHash<GenericChatroomWidget*, Visibility> trackedWidgets;
    NotificationEdgeWidget* topEdge = nullptr;
    NotificationEdgeWidget* bottomEdge = nullptr;
    size_t referencesAbove = 0;
    size_t referencesBelow = 0;
};