426 lines
12 KiB
C++
426 lines
12 KiB
C++
#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 "timelineandtrackview.h"
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#include "widget/slider/timeslider.h"
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#include "widget/timelinewidget/timelinescaledobject.h"
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#include "widget/timeruler/timeruler.h"
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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 QWidget, public TimelineScaledObject
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{
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Q_OBJECT
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public:
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TimelineWidget(QWidget* parent = nullptr);
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void Clear();
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void SetTime(int64_t timestamp);
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void ConnectTimelineNode(TimelineOutput* node);
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void DisconnectTimelineNode();
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void ZoomIn();
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void ZoomOut();
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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 GoToPrevCut();
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void GoToNextCut();
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void SplitAtPlayhead();
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void DeleteSelected();
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QList<TimelineViewBlockItem*> GetSelectedBlocks();
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public slots:
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void SetTimebase(const rational& timebase);
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protected:
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virtual void resizeEvent(QResizeEvent *event) override;
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signals:
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void TimeChanged(const int64_t& time);
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private:
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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 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 ValidateFrameMovement(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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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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protected:
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void SetMovementAllowed(bool allowed);
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void SetTrackMovementAllowed(bool allowed);
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void SetTrimmingAllowed(bool allowed);
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virtual void MouseReleaseInternal(TimelineViewMouseEvent *event);
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virtual rational FrameValidateInternal(rational time_movement, const QVector<TimelineViewGhostItem *> &ghosts);
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virtual void InitiateGhosts(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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private:
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void InitiateDrag(const TimelineCoordinate &mouse_pos);
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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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TrackReference track_start_;
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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 rubberband_selecting_;
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TrackType drag_track_type_;
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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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private:
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int import_pre_buffer_;
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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 MouseReleaseInternal(TimelineViewMouseEvent *event) override;
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virtual rational FrameValidateInternal(rational time_movement, const QVector<TimelineViewGhostItem*>& ghosts) override;
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virtual void InitiateGhosts(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 MouseReleaseInternal(TimelineViewMouseEvent *event) override;
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virtual rational FrameValidateInternal(rational time_movement, const QVector<TimelineViewGhostItem*>& ghosts) override;
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virtual void InitiateGhosts(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 MouseReleaseInternal(TimelineViewMouseEvent *event) override;
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virtual rational FrameValidateInternal(rational time_movement, const QVector<TimelineViewGhostItem*>& ghosts) override;
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virtual void InitiateGhosts(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 MouseReleaseInternal(TimelineViewMouseEvent *event) override;
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};
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class HandTool : public Tool
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{
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public:
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HandTool(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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QPoint screen_drag_start_;
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QPoint scrollbar_start_;
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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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protected:
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private:
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bool dual_transition_;
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};
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void DeleteSelectedInternal(const QList<Block*> blocks, bool remove_from_graph, QUndoCommand* command);
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void SetBlockLinksSelected(Block *block, bool selected);
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QPoint drag_origin_;
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void StartRubberBandSelect(bool select_links);
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void MoveRubberBandSelect(bool select_links);
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void EndRubberBandSelect(bool select_links);
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QRubberBand rubberband_;
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QList<QGraphicsItem*> rubberband_now_selected_;
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void StartHandDrag();
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void MoveHandDrag();
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void EndHandDrag();
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TimelineView* hand_drag_view_;
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QPoint hand_drag_view_origin_;
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Tool* GetActiveTool();
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QVector< std::shared_ptr<Tool> > tools_;
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std::shared_ptr<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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void RippleEditTo(Timeline::MovementMode mode, bool insert_gaps);
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void SetTimeAndSignal(const int64_t& t);
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TrackOutput* GetTrackFromReference(const TrackReference& ref);
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QList<TimelineAndTrackView*> views_;
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TimeRuler* ruler_;
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TimelineOutput* timeline_node_;
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int64_t playhead_;
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QScrollBar* horizontal_scroll_;
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TimeSlider* timecode_label_;
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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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private slots:
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void SetScale(double scale);
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void UpdateInternalTime(const int64_t& timestamp);
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void UpdateTimelineLength(const rational& length);
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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, TrackType type);
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void RemoveTrack(TrackOutput* track);
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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 UpdateHorizontalSplitters();
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void UpdateTimecodeWidthFromSplitters(QSplitter *s);
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void TrackHeightChanged(TrackType type, int index, int height);
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void ShowContextMenu();
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void ShowSpeedDurationDialog();
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};
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#endif // TIMELINEWIDGET_H
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