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connectionPoint.hh
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40 \*===========================================================================*/
41
42 /*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $LastChangedBy$ *
46 * $Date$ *
47 * *
48 \*===========================================================================*/
49
50 #ifndef VSI_CONNECTIONPOINT_HH
51 #define VSI_CONNECTIONPOINT_HH
52
53 //== INCLUDES =================================================================
54 #include <QGraphicsItem>
55 #include <QGraphicsLayoutItem>
56 #include <QGraphicsSceneMouseEvent>
57 #include <QString>
58 #include <QTimer>
59 #include <QPointF>
60
61 //== NAMESPACES ===============================================================
62 namespace VSI {
63
64 //== FORWARDDECLARATIONS ======================================================
65 class GraphicsScene;
66 class ElementInOut;
67
68 //== CLASS DEFINITION =========================================================
69
73 class ConnectionPoint : public QObject, public QGraphicsEllipseItem, public QGraphicsLayoutItem
74 {
75 Q_OBJECT
76 Q_INTERFACES(QGraphicsLayoutItem)
77
78 public:
79
81 enum State {
82 NoValue = 0,
83 Optional = 1,
84 RuntimeInput = 2,
85 UserInput = 3,
86 Connected = 4,
87 OutputNotConnected = 5
88 };
89
91 ConnectionPoint (ElementInOut *_e, QGraphicsItem *_parent);
92
94 ~ConnectionPoint ();
95
97 ElementInOut *inOut () const { return inout_; };
98
100 QPointF connectPos ();
101
103 virtual void setGeometry (const QRectF &_rect);
104
106 void setState (State _state);
107
109 void setWidth (int _width);
110
111 // painting
112 void paint (QPainter *_painter, const QStyleOptionGraphicsItem *_option, QWidget *_widget = 0);
113
114 protected:
115
116 // start a new connection on press
117 void mousePressEvent (QGraphicsSceneMouseEvent *_event);
118
119 // highlight connection if mouse over
120 void hoverEnterEvent (QGraphicsSceneHoverEvent *_event);
121 void hoverLeaveEvent (QGraphicsSceneHoverEvent *_event);
122
123 // size informations for layouting
124 virtual QSizeF sizeHint ( Qt::SizeHint _which, const QSizeF & _constraint = QSizeF()) const;
125
126 private:
127
128 ElementInOut *inout_;
129
130 int width_;
131 };
132
133 }
134
135 #endif
VSI
Definition: baseWidget.cc:78
VSI::ConnectionPoint::~ConnectionPoint
~ConnectionPoint()
Destructor.
Definition: connectionPoint.cc:101
VSI::ConnectionPoint::setGeometry
virtual void setGeometry(const QRectF &_rect)
Sets the geometry.
Definition: connectionPoint.cc:108
VSI::ConnectionPoint::setWidth
void setWidth(int _width)
Sets the diameter.
Definition: connectionPoint.cc:234
VSI::ConnectionPoint::setState
void setState(State _state)
sets the state
Definition: connectionPoint.cc:159
VSI::ConnectionPoint::inOut
ElementInOut * inOut() const
Input/output element.
Definition: connectionPoint.hh:97
VSI::ConnectionPoint::connectPos
QPointF connectPos()
Position for connections.
Definition: connectionPoint.cc:147
VSI::ConnectionPoint::ConnectionPoint
ConnectionPoint(ElementInOut *_e, QGraphicsItem *_parent)
Constructor.
Definition: connectionPoint.cc:86
VSI::ConnectionPoint
Definition: connectionPoint.hh:73
VSI::ElementInOut
Definition: elementInOut.hh:75
VSI::ConnectionPoint::State
State
State of the connection point.
Definition: connectionPoint.hh:81