CanvasView.h

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// (c) 2017 Alex Nadzharov
// License: GPL3

#ifndef CM_CANVAS_H
#define CM_CANVAS_H

#include <QWidget>
#include <QtGui>
#include <QtWidgets>

#include "UIPatchcord.h"

#include "ObjectMaker.h"

#include "ObjectLoader.h"

#include "Grid.h"
#include "SelectionRect.h"
#include "UINewPatchcord.h"

#include "CanvasData.h"

#include "Clipboard.h"

#include <QMenu>

//class QMenu;

using namespace std;

namespace tilde {

class CanvasView : public QGraphicsView {
private:
    UIObject* _connectionStartObject;
    UIObject* _connectionStartOutlet;
    UIObject* _replaceObject;

    QPoint _newObjectPos;
    QPoint _dragPrevPos;

    bool _gridSnap;

    QSize _windowSize;

    ObjectMaker* _objectMaker;

    bool _keepPdObject;
    bool _readOnly;

    t_editMode* _canvasEditMode;

    Grid* _grid;
    SelectionRect* _selectionRect;
    UINewPatchcord* _newPatchcord;

    UIObject* _dragObject;

    float _zoom;

    QTransform* _transformMatrix;

    QMenu _popupMenu;
    QAction* _pmProperties;

    PatchWindowController* _controller;

    Q_OBJECT

public:
    explicit CanvasView(QGraphicsView* parent = 0);

    // todo fix
    QPoint newObjectPos();

    UIObject* dragObject();
    void setDragObject(UIObject* object);

    void setController(PatchWindowController* c);

    void setZoom(float zoomDirection);
    float getZoom();

    virtual t_editMode getEditMode();
    virtual t_editMode* getEditModeRef();

    void setEditMode(t_editMode mode);
    void setGridEnabled(bool val);
    void setGridSnap(bool val);

    bool gridSnap();
    int gridStep();

    void setKeepPdObject(bool v);
    bool keepPdObject();

    void setReadOnly(bool val);

    bool readOnly();

    QSize minimumCanvasSize();

    void setWindowSize(QSize wsize);

    void setReplaceObject(UIObject* obj); 
    UIObject* replaceObject();

    // -------------------------------------------------------

    void addInlet();
    void addOutlet();

    // -------------------------------------------------------

    void mouseMoveEvent(QMouseEvent* ev);
    void mousePressEvent(QMouseEvent* ev);
    void mouseReleaseEvent(QMouseEvent* ev);

    // -------------------------------------------------------

    void resizeToObjects(); 

    Q_SLOT void slotSelectBox(UIItem* box, QGraphicsSceneMouseEvent* ev); 

    Q_SLOT void slotMoveBox(UIItem* box, QGraphicsSceneMouseEvent* event); 

    void cancelPatchcord(); 

    ObjectMaker* objectMaker(); 

    void portLocalCountUpdated(); 

    void showNewObjectMaker(); 

    void canvasFromPdStrings(QStringList strings); 

    // -- NEW ---------------------------------------

    void resizeEvent(QResizeEvent*);
    void createContextMenu();

    //SizeBox* sizeBox();

private slots:

    void slotPopupMenu();

public slots:

    void slotInletMousePress(UIItem* obj, QGraphicsSceneMouseEvent* ev);
    void slotInletMouseRelease(UIItem* obj, QGraphicsSceneMouseEvent* ev);

    void slotInletMouseEnter(UIItem* obj, QGraphicsSceneHoverEvent* ev);
    void slotInletMouseLeave(UIItem* obj, QGraphicsSceneHoverEvent* ev);

    void slotOutletMousePressed(UIItem* obj, QGraphicsSceneMouseEvent*);
    void slotOutletMouseReleased(UIItem*, QGraphicsSceneMouseEvent*);

    void slotPortCountUpdated();

    void slotObjectStartsEdit(void* obj);

signals:
    pair<QMainWindow*, tilde::UIObject*> createSubpatchWindow();
    void signalUpdatePortCount();

    // new 0617
    void signalSelectObject(UIObject* object);
    void signalPatchcord(UIObject* src, int nOut, UIObject* dest, int nIn);

    void signalMousePress(QPoint pos);
    void signalMouseMove(QPoint pos);
    void signalMouseRelease(QPoint pos);

    void signalDeselectObjects();

    void signalSelectionFrame(QPoint start, QPoint end);
    void signalMoveSelectedBoxes(QPoint eventPos);

    void signalPopupMenu();
};
}

#endif // CM_CANVAS_H