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oak-editor/app/widget/timelinewidget/tool/tool.h
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2026-01-16 21:22:05 +08:00

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/***
Olive - Non-Linear Video Editor
Copyright (C) 2022 Olive Team
Modifications Copyright (C) 2025 mikesolar
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 TIMELINETOOL_H
#define TIMELINETOOL_H
#include <QDragLeaveEvent>
#include "widget/timelinewidget/view/timelineviewghostitem.h"
#include "widget/timelinewidget/view/timelineviewmouseevent.h"
namespace olive
{
class TimelineWidget;
class TimelineTool {
public:
TimelineTool(TimelineWidget *parent);
virtual ~TimelineTool();
virtual void MousePress(TimelineViewMouseEvent *)
{
}
virtual void MouseMove(TimelineViewMouseEvent *)
{
}
virtual void MouseRelease(TimelineViewMouseEvent *)
{
}
virtual void MouseDoubleClick(TimelineViewMouseEvent *)
{
}
virtual void HoverMove(TimelineViewMouseEvent *)
{
}
virtual void DragEnter(TimelineViewMouseEvent *)
{
}
virtual void DragMove(TimelineViewMouseEvent *)
{
}
virtual void DragLeave(QDragLeaveEvent *)
{
}
virtual void DragDrop(TimelineViewMouseEvent *)
{
}
TimelineWidget *parent();
Sequence *sequence();
static Timeline::MovementMode
FlipTrimMode(const Timeline::MovementMode &trim_mode);
static rational SnapMovementToTimebase(const rational &start,
rational movement,
const rational &timebase);
protected:
/**
* @brief Validates Ghosts that are moving horizontally (time-based)
*
* Validation is the process of ensuring that whatever movements the user is making are "valid" and "legal". This
* function's validation ensures that no Ghost's in point ends up in a negative timecode.
*/
rational ValidateTimeMovement(rational movement);
/**
* @brief Validates Ghosts that are moving vertically (track-based)
*
* This function's validation ensures that no Ghost's track ends up in a negative (non-existent) track.
*/
int ValidateTrackMovement(int movement,
const QVector<TimelineViewGhostItem *> &ghosts);
void GetGhostData(rational *earliest_point, rational *latest_point);
void InsertGapsAtGhostDestination(MultiUndoCommand *command);
std::vector<rational> snap_points_;
bool dragging_;
TimelineCoordinate drag_start_;
static const int kDefaultDistanceFromOutput;
private:
TimelineWidget *parent_;
};
}
#endif // TIMELINETOOL_H