35e409e926
Found via `codespell -q 3 -S *.ts,thirdparty, -L appy,ba,inbetween,inout,pevent,possibile,upto`
126 lines
3.5 KiB
C++
126 lines
3.5 KiB
C++
#pragma once
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#ifndef DVSCROLLWIDGET_H
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#define DVSCROLLWIDGET_H
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// TnzCore includes
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#include "tcommon.h"
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// Qt includes
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#include <QFrame>
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#include <QEasingCurve>
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#undef DVAPI
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#undef DVVAR
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#ifdef TOONZQT_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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//====================================================
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// Forward declarations
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class FreeLayout;
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class QPropertyAnimation;
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class QPushButton;
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class QTimer;
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//====================================================
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//****************************************************************************
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// DvScrollWidget class
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//****************************************************************************
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/*!
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\brief The DvScrollWidget class is a QScrollArea-like container
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widget for monodirectional scrolling.
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\details Unlike a QScrollArea, scrolling is enforced using directional
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buttons
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at the side of the content whose activation performs animated
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scrolling
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by half a widget in the represented direction.
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Alternatively, free-scroll is available by default where mouse
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events
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are un-accepted by the content's child widgets.
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The push buttons at the side of the content appear only when there
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is
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available content space in that direction. They are \a empty by
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default,
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but can be filled in or styled with a style sheet.
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In the latter case, they are given an object name dependent on the
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scroll orientation - in the form
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<TT>Scroll<Left/Right/Up/Down>Button</TT>.
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\note The default size QSizePolicy for DvScrollWidget is \p Preferred in
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the orientation direction, and \p Fixed in the other.
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\sa The FreeLayout class.
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*/
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class DVAPI DvScrollWidget final : public QFrame {
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Q_OBJECT
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QWidget *m_content;
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QPushButton *m_scrollBackward, *m_scrollForward;
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QPropertyAnimation *m_animation;
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QEasingCurve m_clickEase, m_holdEase;
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QTimer *m_backwardTimer, *m_forwardTimer;
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int m_mousePos;
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bool m_horizontal, m_pressed, m_heldRelease, m_heldClick;
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public:
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DvScrollWidget(QWidget *parent = 0, Qt::Orientation = Qt::Horizontal);
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~DvScrollWidget() {}
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/*! \remark Ownership is \a transferred to this class. Any previously set
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widget
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is deleted before being replaced. */
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void setWidget(QWidget *widget); //!< Sets the scrollable content widget.
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/*! \note Function setOrientation() restores the widget's <I>size policy</I>
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to
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\p Preferred in the specified direction, and \p Fixed in the other. */
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void setOrientation(Qt::Orientation orientation);
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Qt::Orientation getOrientation() const;
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void setEasing(QEasingCurve clickEase, QEasingCurve holdPressEase);
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void scroll(int dx, int duration = 0,
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QEasingCurve easing = QEasingCurve(QEasingCurve::OutCubic));
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void scrollTo(int pos, int duration = 0,
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QEasingCurve easing = QEasingCurve(QEasingCurve::OutCubic));
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public slots:
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void scrollBackward();
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void scrollForward();
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protected:
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void resizeEvent(QResizeEvent *re) override;
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void mousePressEvent(QMouseEvent *me) override;
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void mouseMoveEvent(QMouseEvent *me) override;
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void mouseReleaseEvent(QMouseEvent *me) override;
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void showEvent(QShowEvent *se) override;
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protected slots:
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void updateButtonsVisibility();
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void holdBackward();
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void holdForward();
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void releaseBackward();
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void releaseForward();
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};
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#endif // DVSCROLLWIDGET_H
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