1 #ifndef LINKABLEMAPOBJ_H
2 #define LINKABLEMAPOBJ_H
6 #include "headingobj.h"
7 #include "flagrowobj.h"
14 /*! \brief This class adds links to MapObj
16 The links are connecting the branches (BranchObj) and images (FloatImageObj) in the map.
19 class LinkableMapObj:public MapObj {
21 /*! Orientation of an object depends on the position relative to the parent */
23 UndefinedOrientation, //!< Undefined
24 LeftOfCenter, //!< Object is left of center
25 RightOfCenter //!< Object is right of center
28 /*! Various drawing styles for links */
30 UndefinedStyle, //!< Undefined
31 Line, //!< Straight line
33 PolyLine, //!< Polygon (thick line)
34 PolyParabel //!< Thick parabel
37 /*! Vertical position of link in object */
39 Middle, //!< Link is drawn in the middle of object
40 Bottom //!< Link is drawn at bottom of object
44 /*! Hint if link should use the default link color or the color of heading */
46 DefaultColor, //!< Link uses the default color
47 HeadingColor //!< Link uses the color of heading
51 LinkableMapObj (QGraphicsItem*, TreeItem *ti=NULL);
52 virtual ~LinkableMapObj ();
55 virtual void createBottomLine();
57 virtual void delLink();
58 virtual void copy (LinkableMapObj*);
60 void setChildObj (LinkableMapObj*);
61 virtual void setParObj (LinkableMapObj*);
62 virtual void setParObjTmp (LinkableMapObj*,QPointF,int); // Only for moving Obj around
63 virtual void unsetParObjTmp(); // reuse original ParObj
64 virtual bool hasParObjTmp();
66 virtual void setUseRelPos (const bool&);
67 virtual bool getUseRelPos();
68 virtual void setRelPos(); // set relPos to current parentPos
69 virtual void setRelPos(const QPointF&);
70 virtual QPointF getRelPos();
72 virtual qreal getTopPad();
73 virtual qreal getLeftPad();
74 virtual qreal getRightPad();
75 Style getDefLinkStyle(TreeItem *parent);
76 void setLinkStyle(Style);
79 void setLinkPos (Position);
80 Position getLinkPos ();
82 virtual void setLinkColor(); // sets color according to colorhint, overloaded
83 virtual void setLinkColor(QColor);
84 QColor getLinkColor();
85 virtual void setVisibility (bool);
86 virtual void setOrientation();
87 virtual void updateVisibility(); //! hides/unhides link depending on selection
89 /*! update parPos, childRefPos
91 redraw link with given style */
92 virtual void updateLinkGeometry();
94 virtual void setDockPos()=0; // sets childRefPos and parPos
95 QPointF getChildRefPos(); // returns pos where children dock
96 QPointF getFloatRefPos(); // returns pos where floats dock
97 QPointF getParPos(); // returns pos where parents dock
98 Orientation getOrientation(); // get orientation
100 virtual void reposition();
101 virtual void requestReposition(); // do reposition after next user event
102 virtual void forceReposition(); // to force a reposition now (outside
103 // of mapeditor e.g. in noteeditor
104 virtual bool repositionRequested();
106 virtual void calcBBoxSizeWithChildren()=0;// calc size of BBox including children recursivly
109 void parabel(QPolygonF &, qreal, qreal, qreal, qreal); // Create Parabel connecting two points
114 bool link2ParPos; // While moving around, sometimes link to parent
116 Orientation orientation;
117 qreal linkwidth; // width of a link
118 QRectF bboxTotal; // bounding box including children
120 LinkableMapObj* parObj;
121 LinkableMapObj* parObjTmpBuf; // temporary buffer the original parent
124 int thickness_start; // for StylePoly*
125 Style style; // Current style
126 Position linkpos; // Link at bottom of object or middle of height
127 QColor linkcolor; // Link color
129 QGraphicsLineItem* l; // line style
130 QGraphicsPolygonItem* p; // poly styles
131 int arcsegs; // arc: number of segments
132 QList <QGraphicsLineItem*> segment; // a part of e.g. the parabel
133 QPolygonF pa0; // For drawing of PolyParabel and PolyLine
134 QPolygonF pa1; // For drawing of PolyParabel
135 QPolygonF pa2; // For drawing of PolyParabel
137 QGraphicsLineItem* bottomline; // on bottom of BBox
138 bool useBottomline; //! Hint if bottomline should be used
139 qreal bottomlineY; // vertical offset of dockpos to pos
141 bool repositionRequest; //
143 qreal topPad, botPad,
144 leftPad, rightPad; // padding within bbox
146 QPointF relPos; // position relative to childRefPos of parent