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oak-editor/app/widget/handmovableview/handmovableview.h
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/***
Olive - Non-Linear Video Editor
Copyright (C) 2022 Olive Team
This program is free 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
***/
#ifndef HANDMOVABLEVIEW_H
#define HANDMOVABLEVIEW_H
#include <QGraphicsView>
#include <QMenu>
#include "tool/tool.h"
namespace olive {
class HandMovableView : public QGraphicsView
{
Q_OBJECT
public:
HandMovableView(QWidget* parent = nullptr);
bool GetScrollZoomsByDefault() const
{
return scroll_zooms_by_default_;
}
QAction* AddSetScrollZoomsByDefaultActionToMenu(QMenu* menu, bool autoconnect = true);
public slots:
void SetScrollZoomsByDefault(bool e)
{
scroll_zooms_by_default_ = e;
}
protected:
virtual void ToolChangedEvent(Tool::Item tool){Q_UNUSED(tool)}
bool HandPress(QMouseEvent* event);
bool HandMove(QMouseEvent* event);
bool HandRelease(QMouseEvent* event);
void SetDefaultDragMode(DragMode mode);
const DragMode& GetDefaultDragMode() const;
bool WheelEventIsAZoomEvent(QWheelEvent* event) const;
virtual void wheelEvent(QWheelEvent* event) override;
virtual void ZoomIntoCursorPosition(QWheelEvent* event, double multiplier, const QPointF &cursor_pos);
private:
bool dragging_hand_;
DragMode pre_hand_drag_mode_;
DragMode default_drag_mode_;
/**
* @brief Whether scrolling should perform a scroll or a zoom
*
* If TRUE, scrolling will ZOOM and Ctrl+Scroll with SCROLL.
* If FALSE (default), scrolling will SCROLL and Ctrl+Scroll will ZOOM.
*/
bool scroll_zooms_by_default_;
QPointF transformed_pos_;
private slots:
void ApplicationToolChanged(Tool::Item tool);
};
}
#endif // HANDMOVABLEVIEW_H