itsmattkc
c2e47a296c
Features a lot of timeline-related cache optimizations as well as general optimizations and improvements in timeline behavior. Should improve usability significantly.
558 lines
15 KiB
C++
558 lines
15 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef TIMELINEWIDGET_H
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#define TIMELINEWIDGET_H
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#include <QScrollBar>
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#include <QRubberBand>
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#include <QWidget>
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#include "core.h"
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#include "node/output/viewer/viewer.h"
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#include "timeline/timelinecommon.h"
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#include "timelineandtrackview.h"
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#include "widget/nodecopypaste/nodecopypaste.h"
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#include "widget/slider/timeslider.h"
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#include "widget/timebased/timebased.h"
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OLIVE_NAMESPACE_ENTER
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/**
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* @brief Full widget for working with TimelineOutput nodes
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*
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* Encapsulates TimelineViews, TimeRulers, and scrollbars for a complete widget to manipulate Timelines
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*/
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class TimelineWidget : public TimeBasedWidget, public NodeCopyPasteWidget
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{
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Q_OBJECT
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public:
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enum DropWithoutSequenceBehavior {
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kDWSAsk,
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kDWSAuto,
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kDWSManual,
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kDWSDisable
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};
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TimelineWidget(QWidget* parent = nullptr);
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virtual ~TimelineWidget() override;
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void Clear();
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void SelectAll();
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void DeselectAll();
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void RippleToIn();
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void RippleToOut();
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void EditToIn();
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void EditToOut();
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void SplitAtPlayhead();
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void DeleteSelected(bool ripple = false);
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void IncreaseTrackHeight();
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void DecreaseTrackHeight();
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void InsertFootageAtPlayhead(const QList<Footage *> &footage);
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void OverwriteFootageAtPlayhead(const QList<Footage *> &footage);
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void ToggleLinksOnSelected();
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void CopySelected(bool cut);
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void Paste(bool insert);
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void DeleteInToOut(bool ripple);
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void ToggleSelectedEnabled();
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QList<TimelineViewBlockItem*> GetSelectedBlocks();
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signals:
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void SelectionChanged(const QList<Block*>& selected_blocks);
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protected:
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virtual void resizeEvent(QResizeEvent *event) override;
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virtual void TimebaseChangedEvent(const rational &) override;
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virtual void TimeChangedEvent(const int64_t &) override;
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virtual void ScaleChangedEvent(const double &) override;
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virtual void ConnectNodeInternal(ViewerOutput* n) override;
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virtual void DisconnectNodeInternal(ViewerOutput* n) override;
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virtual void CopyNodesToClipboardInternal(QXmlStreamWriter *writer, void* userdata) override;
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virtual void PasteNodesFromClipboardInternal(QXmlStreamReader *reader, void* userdata) override;
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struct BlockPasteData {
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quintptr ptr;
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rational in;
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Timeline::TrackType track_type;
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int track_index;
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};
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private:
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class DraggedFootage {
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public:
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DraggedFootage(Footage* f, quint64 streams) :
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footage_(f),
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streams_(streams)
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{
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}
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Footage* footage() const {
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return footage_;
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}
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const quint64& streams() const {
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return streams_;
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}
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private:
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Footage* footage_;
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quint64 streams_;
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};
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static DraggedFootage FootageToDraggedFootage(Footage* f);
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static QList<DraggedFootage> FootageToDraggedFootage(QList<Footage*> footage);
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class Tool
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{
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public:
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Tool(TimelineWidget* parent);
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virtual ~Tool();
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virtual void MousePress(TimelineViewMouseEvent *){}
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virtual void MouseMove(TimelineViewMouseEvent *){}
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virtual void MouseRelease(TimelineViewMouseEvent *){}
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virtual void MouseDoubleClick(TimelineViewMouseEvent *){}
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virtual void HoverMove(TimelineViewMouseEvent *){}
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virtual void DragEnter(TimelineViewMouseEvent *){}
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virtual void DragMove(TimelineViewMouseEvent *){}
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virtual void DragLeave(QDragLeaveEvent *){}
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virtual void DragDrop(TimelineViewMouseEvent *){}
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TimelineWidget* parent();
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static Timeline::MovementMode FlipTrimMode(const Timeline::MovementMode& trim_mode);
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protected:
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/**
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* @brief Retrieve the QGraphicsItem at a particular scene position
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*
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* Requires a float-based scene position. If you have a screen position, use GetScenePos() first to convert it to a
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* scene position
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*/
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TimelineViewBlockItem* GetItemAtScenePos(const TimelineCoordinate &coord);
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/**
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* @brief Validates Ghosts that are moving horizontally (time-based)
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*
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* Validation is the process of ensuring that whatever movements the user is making are "valid" and "legal". This
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* function's validation ensures that no Ghost's in point ends up in a negative timecode.
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*/
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rational ValidateTimeMovement(rational movement, const QVector<TimelineViewGhostItem*> ghosts);
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/**
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* @brief Validates Ghosts that are moving vertically (track-based)
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*
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* This function's validation ensures that no Ghost's track ends up in a negative (non-existent) track.
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*/
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int ValidateTrackMovement(int movement, const QVector<TimelineViewGhostItem*> ghosts);
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enum SnapPoints {
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kSnapToClips = 0x1,
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kSnapToPlayhead = 0x2,
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kSnapAll = 0xFF
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};
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/**
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* @brief Snaps point `start_point` that is moving by `movement` to currently existing clips
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*/
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bool SnapPoint(QList<rational> start_times, rational *movement, int snap_points = kSnapAll);
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void GetGhostData(const QVector<TimelineViewGhostItem*>& ghosts, rational *earliest_point, rational *latest_point);
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void InsertGapsAtGhostDestination(const QVector<TimelineViewGhostItem*>& ghosts, QUndoCommand* command);
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QList<rational> snap_points_;
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bool dragging_;
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TimelineCoordinate drag_start_;
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private:
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TimelineWidget* parent_;
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};
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class PointerTool : public Tool
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{
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public:
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PointerTool(TimelineWidget* parent);
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virtual void MousePress(TimelineViewMouseEvent *event) override;
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virtual void MouseMove(TimelineViewMouseEvent *event) override;
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virtual void MouseRelease(TimelineViewMouseEvent *event) override;
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virtual void HoverMove(TimelineViewMouseEvent *event) override;
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protected:
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virtual void FinishDrag(TimelineViewMouseEvent *event);
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virtual void InitiateDrag(TimelineViewBlockItem* clicked_item,
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Timeline::MovementMode trim_mode,
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bool allow_gap_trimming);
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TimelineViewGhostItem* AddGhostFromBlock(Block *block, const TrackReference& track, Timeline::MovementMode mode);
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TimelineViewGhostItem* AddGhostFromNull(const rational& in, const rational& out, const TrackReference& track, Timeline::MovementMode mode);
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/**
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* @brief Validates Ghosts that are getting their in points trimmed
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*
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* Assumes ghost->data() is a Block. Ensures no Ghost's in point becomes a negative timecode. Also ensures no
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* Ghost's length becomes 0 or negative.
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*/
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rational ValidateInTrimming(rational movement, const QVector<TimelineViewGhostItem*> ghosts, bool prevent_overwriting);
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/**
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* @brief Validates Ghosts that are getting their out points trimmed
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*
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* Assumes ghost->data() is a Block. Ensures no Ghost's in point becomes a negative timecode. Also ensures no
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* Ghost's length becomes 0 or negative.
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*/
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rational ValidateOutTrimming(rational movement, const QVector<TimelineViewGhostItem*> ghosts, bool prevent_overwriting);
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virtual void ProcessDrag(const TimelineCoordinate &mouse_pos);
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const Timeline::MovementMode& drag_movement_mode() const
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{
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return drag_movement_mode_;
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}
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void SetMovementAllowed(bool e)
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{
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movement_allowed_ = e;
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}
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void SetTrimmingAllowed(bool e)
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{
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trimming_allowed_ = e;
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}
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void SetTrackMovementAllowed(bool e)
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{
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track_movement_allowed_ = e;
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}
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void SetTrimOverwriteAllowed(bool e)
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{
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trim_overwrite_allowed_ = e;
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}
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private:
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Timeline::MovementMode IsCursorInTrimHandle(TimelineViewBlockItem* block, qreal cursor_x);
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void AddGhostInternal(TimelineViewGhostItem* ghost, Timeline::MovementMode mode);
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bool IsClipTrimmable(TimelineViewBlockItem* clip,
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const QList<TimelineViewBlockItem*>& items,
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const Timeline::MovementMode& mode);
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bool movement_allowed_;
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bool trimming_allowed_;
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bool track_movement_allowed_;
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bool trim_overwrite_allowed_;
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bool rubberband_selecting_;
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Timeline::TrackType drag_track_type_;
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Timeline::MovementMode drag_movement_mode_;
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TimelineViewBlockItem* clicked_item_;
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};
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class ImportTool : public Tool
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{
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public:
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ImportTool(TimelineWidget* parent);
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virtual void DragEnter(TimelineViewMouseEvent *event) override;
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virtual void DragMove(TimelineViewMouseEvent *event) override;
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virtual void DragLeave(QDragLeaveEvent *event) override;
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virtual void DragDrop(TimelineViewMouseEvent *event) override;
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void PlaceAt(const QList<Footage*> &footage, const rational& start, bool insert);
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void PlaceAt(const QList<DraggedFootage> &footage, const rational& start, bool insert);
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private:
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void FootageToGhosts(rational ghost_start, const QList<DraggedFootage>& footage, const rational &dest_tb, const int &track_start);
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void PrepGhosts(const rational &frame, const int &track_index);
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void DropGhosts(bool insert);
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QList<DraggedFootage> dragged_footage_;
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int import_pre_buffer_;
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};
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class EditTool : public Tool
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{
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public:
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EditTool(TimelineWidget* parent);
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virtual void MousePress(TimelineViewMouseEvent *event) override;
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virtual void MouseMove(TimelineViewMouseEvent *event) override;
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virtual void MouseRelease(TimelineViewMouseEvent *event) override;
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};
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class RazorTool : public Tool
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{
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public:
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RazorTool(TimelineWidget* parent);
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virtual void MousePress(TimelineViewMouseEvent *event) override;
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virtual void MouseMove(TimelineViewMouseEvent *event) override;
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virtual void MouseRelease(TimelineViewMouseEvent *event) override;
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private:
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QVector<TrackReference> split_tracks_;
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};
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class RippleTool : public PointerTool
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{
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public:
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RippleTool(TimelineWidget* parent);
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protected:
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virtual void FinishDrag(TimelineViewMouseEvent *event) override;
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virtual void InitiateDrag(TimelineViewBlockItem* clicked_item,
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Timeline::MovementMode trim_mode,
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bool allow_gap_trimming) override;
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};
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class RollingTool : public PointerTool
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{
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public:
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RollingTool(TimelineWidget* parent);
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protected:
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virtual void FinishDrag(TimelineViewMouseEvent *event) override;
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virtual void InitiateDrag(TimelineViewBlockItem* clicked_item,
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Timeline::MovementMode trim_mode,
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bool allow_gap_trimming) override;
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};
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class SlideTool : public PointerTool
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{
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public:
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SlideTool(TimelineWidget* parent);
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protected:
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virtual void FinishDrag(TimelineViewMouseEvent *event) override;
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virtual void InitiateDrag(TimelineViewBlockItem* clicked_item,
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Timeline::MovementMode trim_mode,
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bool allow_gap_trimming) override;
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};
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class SlipTool : public PointerTool
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{
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public:
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SlipTool(TimelineWidget* parent);
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protected:
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virtual void ProcessDrag(const TimelineCoordinate &mouse_pos) override;
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virtual void FinishDrag(TimelineViewMouseEvent *event) override;
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};
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class ZoomTool : public Tool
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{
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public:
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ZoomTool(TimelineWidget* parent);
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virtual void MousePress(TimelineViewMouseEvent *event) override;
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virtual void MouseMove(TimelineViewMouseEvent *event) override;
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virtual void MouseRelease(TimelineViewMouseEvent *event) override;
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};
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class AddTool : public Tool
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{
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public:
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AddTool(TimelineWidget* parent);
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virtual void MousePress(TimelineViewMouseEvent *event) override;
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virtual void MouseMove(TimelineViewMouseEvent *event) override;
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virtual void MouseRelease(TimelineViewMouseEvent *event) override;
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protected:
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void MouseMoveInternal(const rational& cursor_frame, bool outwards);
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TimelineViewGhostItem* ghost_;
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rational drag_start_point_;
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};
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class TransitionTool : public AddTool
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{
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public:
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TransitionTool(TimelineWidget* parent);
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virtual void MousePress(TimelineViewMouseEvent *event) override;
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virtual void MouseMove(TimelineViewMouseEvent *event) override;
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virtual void MouseRelease(TimelineViewMouseEvent *event) override;
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private:
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bool dual_transition_;
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};
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rational GetToolTipTimebase() const;
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void InsertGapsAt(const rational& time, const rational& length, QUndoCommand* command);
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void DeleteSelectedInternal(const QList<Block *>& blocks, bool transition_aware, bool remove_from_graph, QUndoCommand* command);
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void SetBlockLinksSelected(Block *block, bool selected);
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QVector<Timeline::EditToInfo> GetEditToInfo(const rational &playhead_time, Timeline::MovementMode mode);
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void RippleTo(Timeline::MovementMode mode);
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void EditTo(Timeline::MovementMode mode);
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QPoint drag_origin_;
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void StartRubberBandSelect(bool enable_selecting, bool select_links);
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void MoveRubberBandSelect(bool enable_selecting, bool select_links);
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void EndRubberBandSelect(bool enable_selecting, bool select_links);
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QRubberBand rubberband_;
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QList<QGraphicsItem*> rubberband_now_selected_;
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Tool* GetActiveTool();
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QVector<Tool*> tools_;
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ImportTool* import_tool_;
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Tool* active_tool_;
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void ClearGhosts();
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bool HasGhosts();
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QVector<TimelineViewGhostItem*> ghost_items_;
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QMap<Block*, TimelineViewBlockItem*> block_items_;
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TrackOutput* GetTrackFromReference(const TrackReference& ref);
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void ConnectViewSelectionSignal(TimelineView* view);
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void DisconnectViewSelectionSignal(TimelineView* view);
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QList<TimelineAndTrackView*> views_;
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TimeSlider* timecode_label_;
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int deferred_scroll_value_;
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bool use_audio_time_units_;
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int GetTrackY(const TrackReference& ref);
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int GetTrackHeight(const TrackReference& ref);
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void CenterOn(qreal scene_pos);
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void AddGhost(TimelineViewGhostItem* ghost);
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void UpdateViewTimebases();
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private slots:
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void ViewMousePressed(TimelineViewMouseEvent* event);
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void ViewMouseMoved(TimelineViewMouseEvent* event);
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void ViewMouseReleased(TimelineViewMouseEvent* event);
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void ViewMouseDoubleClicked(TimelineViewMouseEvent* event);
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void ViewDragEntered(TimelineViewMouseEvent* event);
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void ViewDragMoved(TimelineViewMouseEvent* event);
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void ViewDragLeft(QDragLeaveEvent* event);
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void ViewDragDropped(TimelineViewMouseEvent* event);
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void AddBlock(Block* block, TrackReference track);
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void RemoveBlock(Block* block);
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void AddTrack(TrackOutput* track, Timeline::TrackType type);
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void RemoveTrack(TrackOutput* track);
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void TrackIndexChanged();
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void ViewSelectionChanged();
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/**
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* @brief Slot for when a Block node changes its parameters and the graphics need to update
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*
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* This slot does a static_cast on sender() to Block*, meaning all objects triggering this slot must be Blocks or
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* derivatives.
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*/
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void BlockChanged();
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void PreviewUpdated();
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void UpdateHorizontalSplitters();
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void UpdateTimecodeWidthFromSplitters(QSplitter *s);
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void TrackHeightChanged(Timeline::TrackType type, int index, int height);
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void ShowContextMenu();
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void ShowSpeedDurationDialog();
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void DeferredScrollAction();
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void ShowSequenceDialog();
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void SetUseAudioTimeUnits(bool use);
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void SetViewTimestamp(const int64_t& ts);
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void ViewTimestampChanged(int64_t ts);
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};
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OLIVE_NAMESPACE_EXIT
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#endif // TIMELINEWIDGET_H
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