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oak-editor/app/widget/curvewidget/curveview.h
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2021-12-17 17:07:59 -08:00

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/***
Olive - Non-Linear Video Editor
Copyright (C) 2021 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 CURVEVIEW_H
#define CURVEVIEW_H
#include "node/keyframe.h"
#include "widget/keyframeview/keyframeview.h"
#include "widget/slider/floatslider.h"
namespace olive {
class CurveView : public KeyframeView
{
Q_OBJECT
public:
CurveView(QWidget* parent = nullptr);
void ConnectInput(const NodeKeyframeTrackReference &ref);
void DisconnectInput(const NodeKeyframeTrackReference &ref);
void SelectKeyframesOfInput(const NodeKeyframeTrackReference &ref);
void SetKeyframeTrackColor(const NodeKeyframeTrackReference& ref, const QColor& color);
public slots:
void ZoomToFit();
void ZoomToFitSelected();
void ResetZoom();
protected:
virtual void drawBackground(QPainter* painter, const QRectF& rect) override;
virtual void drawForeground(QPainter *painter, const QRectF &rect) override;
virtual void ContextMenuEvent(Menu &m) override;
virtual void SceneRectUpdateEvent(QRectF &r) override;
virtual qreal GetKeyframeSceneY(KeyframeViewInputConnection *track, NodeKeyframe *key) override;
virtual void DrawKeyframe(QPainter *painter, NodeKeyframe *key, KeyframeViewInputConnection *track, const QRectF &key_rect) override;
virtual bool FirstChanceMousePress(QMouseEvent *event) override;
virtual void FirstChanceMouseMove(QMouseEvent *event) override;
virtual void FirstChanceMouseRelease(QMouseEvent *event) override;
virtual void KeyframeDragStart(QMouseEvent *event) override;
virtual void KeyframeDragMove(QMouseEvent *event, QString &tip) override;
virtual void KeyframeDragRelease(QMouseEvent *event, MultiUndoCommand *command) override;
private:
void ZoomToFitInternal(bool selected_only);
qreal GetItemYFromKeyframeValue(NodeKeyframe* key);
qreal GetUnscaledItemYFromKeyframeValue(NodeKeyframe* key);
QPointF ScalePoint(const QPointF& point);
static FloatSlider::DisplayType GetFloatDisplayTypeFromKeyframe(NodeKeyframe *key);
static double GetOffsetFromKeyframe(NodeKeyframe *key);
void AdjustLines();
QPointF GetKeyframePosition(NodeKeyframe *key);
static QPointF GenerateBezierControlPosition(const NodeKeyframe::BezierType mode,
const QPointF& start_point,
const QPointF& scaled_cursor_diff);
QPointF GetScaledCursorPos(const QPointF &cursor_pos);
QHash<NodeKeyframeTrackReference, QColor> keyframe_colors_;
QHash<NodeKeyframeTrackReference, KeyframeViewInputConnection*> track_connections_;
int text_padding_;
int minimum_grid_space_;
QVector<NodeKeyframeTrackReference> connected_inputs_;
struct BezierPoint
{
QRectF rect;
NodeKeyframe *keyframe;
NodeKeyframe::BezierType type;
};
QVector<BezierPoint> bezier_pts_;
const BezierPoint *dragging_bezier_pt_;
QPointF dragging_bezier_point_start_;
QPointF dragging_bezier_point_opposing_start_;
QPointF drag_start_;
QVector<QVariant> drag_keyframe_values_;
};
}
#endif // CURVEVIEW_H