viewerwidget.h

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/***

    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 VIEWERWIDGET_H
#define VIEWERWIDGET_H

#include <QOpenGLWidget>
#include <QMatrix4x4>
#include <QOpenGLTexture>
#include <QTimer>
#include <QThread>
#include <QMutex>
#include <QWaitCondition>
#include <QOpenGLFunctions>

#include "project/clip.h"
#include "project/footage.h"
#include "project/effect.h"
#include "ui/viewerwindow.h"
#include "ui/viewercontainer.h"
#include "ui/renderthread.h"

class Viewer;
class QOpenGLFramebufferObject;
struct GLTextureCoords;

class ViewerWidget : public QOpenGLWidget, QOpenGLFunctions
{
    Q_OBJECT
public:
    ViewerWidget(QWidget *parent = nullptr);
    ~ViewerWidget();

    void delete_function();
    void close_window();

    void paintGL();
    void initializeGL();
    Viewer* viewer;
    ViewerContainer* container;

    bool waveform;
    ClipPtr waveform_clip;
    const FootageStream* waveform_ms;
    double waveform_zoom;
    int waveform_scroll;

    void frame_update();
    RenderThread* get_renderer();
    void set_scroll(double x, double y);
public slots:
    void set_waveform_scroll(int s);
    void set_fullscreen(int screen = 0);
protected:
    void mousePressEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);
    void wheelEvent(QWheelEvent* event);
private:
    void draw_waveform_func();
    void draw_title_safe_area();
    void draw_gizmos();
    EffectGizmo* get_gizmo_from_mouse(int x, int y);
    void move_gizmos(QMouseEvent *event, bool done);
    bool dragging;
    void seek_from_click(int x);
    EffectPtr gizmos;
    int drag_start_x;
    int drag_start_y;
    int gizmo_x_mvmt;
    int gizmo_y_mvmt;
    EffectGizmo* selected_gizmo;
    RenderThread* renderer;
    ViewerWindow* window;
    double x_scroll;
    double y_scroll;
private slots:
    void context_destroy();
    void retry();
    void show_context_menu();
    void save_frame();
    void queue_repaint();
    void fullscreen_menu_action(QAction* action);
    void set_fit_zoom();
    void set_custom_zoom();
    void set_menu_zoom(QAction *action);
};

#endif // VIEWERWIDGET_H