keyframeview.h

/***

    Olive - Non-Linear Video Editor
    Copyright (C) 2019  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 KEYFRAMEVIEW_H
#define KEYFRAMEVIEW_H

#include <QWidget>
#include <QPainter>

class Clip;
class Effect;
class EffectRow;
class EffectField;
class TimelineHeader;

class KeyframeView : public QWidget {
    Q_OBJECT
public:
    KeyframeView(QWidget* parent = 0);

    void delete_selected_keyframes();

    TimelineHeader* header;

    long visible_in;
    long visible_out;
signals:
    void wheel_event_signal(QWheelEvent*);
public slots:
    void set_x_scroll(int);
    void set_y_scroll(int);
    void resize_move(double d);
private:
    QVector<EffectField*> selected_fields;
    QVector<int> selected_keyframes;
    QVector<int> rowY;
    QVector<EffectRow*> rows;
    QVector<long> old_key_vals;
    void mousePressEvent(QMouseEvent* event);
    void mouseMoveEvent(QMouseEvent* event);
    void mouseReleaseEvent(QMouseEvent *event);
    void paintEvent(QPaintEvent *event);
    void wheelEvent(QWheelEvent* e);
    bool mousedown;
    bool dragging;
    bool keys_selected;
    bool select_rect;
    bool scroll_drag;

    bool keyframeIsSelected(EffectField *field, int keyframe);

    long drag_frame_start;
    long last_frame_diff;
    int rect_select_x;
    int rect_select_y;
    int rect_select_w;
    int rect_select_h;
    int rect_select_offset;

    int x_scroll;
    int y_scroll;

    void update_keys();
private slots:
    void show_context_menu(const QPoint& pos);
    void menu_set_key_type(QAction*);
};

#endif // KEYFRAMEVIEW_H