slidecontainer.h

/*
Gwenview: an image viewer
SPDX-FileCopyrightText: 2007 Aurélien Gâteau <agateau@kde.org>
 
SPDX-License-Identifier: GPL-2.0-or-later
 
*/
#pragma once
 
// Qt
#include <QFrame>
#include <QPointer>
 
#include "textaddonswidgets_export.h"
 
class QPropertyAnimation;
 
namespace TextAddonsWidgets
{
/**
 * This widget is design to contain one child widget, the "content" widget.
 * It will start hidden by default. Calling slideIn() will slide in the content
 * widget from the top border. Calling slideOut() will slide it out.
 */
class TEXTADDONSWIDGETS_EXPORT SlideContainer : public QFrame
{
    Q_OBJECT
    Q_PROPERTY(int slideHeight READ slideHeight WRITE setSlideHeight)
public:
    explicit SlideContainer(QWidget *parent = nullptr);
 
    /**
     * Returns the content widget
     */
    QWidget *content() const;
 
    /**
     * Defines the content widget
     */
    void setContent(QWidget *content);
 
    QSize sizeHint() const override;
    QSize minimumSizeHint() const override;
 
    [[nodiscard]] int slideHeight() const;
 
    Q_INVOKABLE void setSlideHeight(int height);
 
public Q_SLOTS:
    /**
     * Slides the content widget in.
     * Calling it multiple times won't cause the animation to be replayed.
     */
    void slideIn();
 
    /**
     * Slides the content widget out.
     * Calling it multiple times won't cause the animation to be replayed.
     */
    void slideOut();
 
Q_SIGNALS:
    void slidedIn();
    void slidedOut();
 
protected:
    void resizeEvent(QResizeEvent *) override;
    bool eventFilter(QObject *, QEvent *event) override;
 
private:
    TEXTADDONSWIDGETS_NO_EXPORT void slotAnimFinished();
    TEXTADDONSWIDGETS_NO_EXPORT void adjustContentGeometry();
 
    TEXTADDONSWIDGETS_NO_EXPORT void animTo(int height);
    QPointer<QWidget> mContent;
    QPointer<QPropertyAnimation> mAnim;
    bool mSlidingOut = false;
};
} /* namespace */