panel.hpp

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#pragma once
 
#include <QGuiApplication>
#include <QLoggingCategory>
#include <QMouseEvent>
#include <QRubberBand>
#include <QWidget>
 
#include "../app/context_menu.hpp"
#include "../node/nodes/visual.hpp"
#include "resizeboundingbox.hpp"
#include "visual_container.hpp"
 
enum class AlignDirection { Top, Right, Bottom, Left, Horizontal, Vertical };
 
enum class DisplayMode { Run, Edit };
 
static const int MAX_MOUSE_WIGGLE_TOLERANCE = 5; // px of size
 
using RbbWidgetPair = std::pair<ResizeBoundingBox *, QWidget *>;
class Panel : public QWidget
{
    Q_OBJECT
 
public:
    explicit Panel(QWidget *parent = nullptr);

    void addVisual(Visual *visual);
 
public slots:
    void setMode(DisplayMode display_mode);

    void triggeredAlign(AlignDirection direction);
 
    void changeGeometryForSelected(DragDirection, QPointF);
 
protected:
    void mousePressEvent(QMouseEvent *) override;
    void mouseMoveEvent(QMouseEvent *) override;
    void mouseReleaseEvent(QMouseEvent *) override;
 
    bool eventFilter(QObject *, QEvent *) override;
    void childEvent(QChildEvent *) override;
 
private:
    void select(QWidget *child);

    void deselectAll();

    QList<QWidget *> childIn(QRect section);

    QWidget *childAt(QPoint point);

    bool inMouseWiggleTolerance(QSize size);

    void selectSingle(QPoint position);

    void selectMultiple(const QList<QWidget *> &found_visuals);
 
    void alignChildToMinRect(AlignDirection direction, RbbWidgetPair rbbw_pair, QRect minimal_rect);
    QRect minimalSelectedRect();
 
    void installEventFilterRecursively(QObject *);
    QMouseEvent *mapMouseEventToPanel(QMouseEvent *, QWidget *);

    QRect calculateNewGeometry(
        QPointF delta, QRect old_geometry, DragDirection active_direction, int min_w, int min_h);
 
    QPoint m_origin;
    QPointF m_last_global_position;
    bool m_mouse_pressed = false;
    QRubberBand *m_rubber_band;
    DisplayMode m_display_mode;
 
    QList<RbbWidgetPair> m_selection;
};