New upstream version 2.9.22

[sven/vym.git] / src / linkablemapobj.h

diff --git a/src/linkablemapobj.h b/src/linkablemapobj.h
new file mode 100644 (file)
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--- /dev/null
+++ b/src/linkablemapobj.h
@@ -0,0 +1,157 @@
+#ifndef LINKABLEMAPOBJ_H
+#define LINKABLEMAPOBJ_H
+
+#include "animpoint.h"
+#include "flagrowobj.h"
+#include "headingobj.h"
+#include "vymnote.h"
+
+#define MAX_DEPTH 999
+
+class VymModel;
+class TreeItem;
+
+/*! \brief This class adds links to MapObj
+
+The links are connecting the branches (BranchObj) and images (FloatImageObj) in
+the map.
+*/
+
+class LinkableMapObj : public MapObj {
+  public:
+    /*! Orientation of an object depends on the position relative to the parent
+     */
+    enum Orientation {
+        UndefinedOrientation, //!< Undefined
+        LeftOfCenter,         //!< Object is left of center
+        RightOfCenter         //!< Object is right of center
+    };
+
+    /*! Various drawing styles for links */
+    enum Style {
+        UndefinedStyle, //!< Undefined
+        Line,           //!< Straight line
+        Parabel,        //!< Parabel
+        PolyLine,       //!< Polygon (thick line)
+        PolyParabel     //!< Thick parabel
+    };
+
+    /*! Vertical position of link in object */
+    enum Position {
+        Middle, //!< Link is drawn in the middle of object
+        Bottom  //!< Link is drawn at bottom of object
+    };
+
+    /*! Hint if link should use the default link color or the color of heading
+     */
+    enum ColorHint {
+        DefaultColor, //!< Link uses the default color
+        HeadingColor  //!< Link uses the color of heading
+    };
+
+    LinkableMapObj();
+    LinkableMapObj(QGraphicsItem *, TreeItem *ti = NULL);
+    virtual ~LinkableMapObj();
+
+  protected:
+    virtual void init();
+    virtual void createBottomLine();
+
+  public:
+    virtual void delLink();
+    virtual void copy(LinkableMapObj *);
+
+    void setChildObj(LinkableMapObj *);
+    virtual void setParObj(LinkableMapObj *);
+    virtual void setParObjTmp(LinkableMapObj *, QPointF,
+                              int); // Only for moving Obj around
+    virtual void unsetParObjTmp();  // reuse original ParObj
+    virtual bool hasParObjTmp();
+
+    virtual void setUseRelPos(const bool &);
+    virtual bool getUseRelPos();
+    virtual void setRelPos(); // set relPos to current parentPos
+    virtual void setRelPos(const QPointF &);
+    virtual QPointF getRelPos();
+
+    virtual qreal getTopPad();
+    virtual qreal getLeftPad();
+    virtual qreal getRightPad();
+    Style getDefLinkStyle(TreeItem *parent);
+    void setLinkStyle(Style);
+    Style getLinkStyle();
+
+    void setLinkPos(Position);
+    Position getLinkPos();
+
+    virtual void
+    setLinkColor(); // sets color according to colorhint, overloaded
+    virtual void setLinkColor(QColor);
+    QColor getLinkColor();
+    virtual void setVisibility(bool);
+    virtual void setOrientation();
+    virtual void
+    updateVisibility(); //! hides/unhides link depending on selection
+
+    /*! update parPos, childRefPos
+    depending on pos
+    redraw link with given style */
+    virtual void updateLinkGeometry();
+
+    virtual void setDockPos() = 0; // sets childRefPos and parPos
+    QPointF getChildRefPos();      // returns pos where children dock
+    QPointF getFloatRefPos();      // returns pos where floats dock
+    QPointF getParPos();           // returns pos where parents dock
+    Orientation getOrientation();  // get orientation
+
+    virtual void reposition();
+    virtual void requestReposition(); // do reposition after next user event
+    virtual void forceReposition();   // to force a reposition now (outside
+    // of mapeditor e.g. in noteeditor
+    virtual bool repositionRequested();
+
+    virtual void calcBBoxSizeWithChildren() = 0; // calc size of  BBox including
+                                                 // children recursivly
+
+  protected:
+    void parabel(QPolygonF &, qreal, qreal, qreal,
+                 qreal); // Create Parabel connecting two points
+
+    QPointF childRefPos;
+    QPointF floatRefPos;
+    QPointF parPos;
+    bool link2ParPos; // While moving around, sometimes link to parent
+
+    Orientation orientation;
+    qreal linkwidth;  // width of a link
+    QRectF bboxTotal; // bounding box including children
+
+    LinkableMapObj *parObj;
+    LinkableMapObj *parObjTmpBuf; // temporary buffer the original parent
+    bool tmpParent;
+
+    int thickness_start; // for StylePoly*
+    Style style;         // Current style
+    Position linkpos;    // Link at bottom of object or middle of height
+    QColor linkcolor;    // Link color
+    QPen pen;
+    QGraphicsLineItem *l;               // line style
+    QGraphicsPolygonItem *p;            // poly styles
+    int arcsegs;                        // arc: number of segments
+    QList<QGraphicsLineItem *> segment; // a part of e.g. the parabel
+    QPolygonF pa0; // For drawing of PolyParabel and PolyLine
+    QPolygonF pa1; // For drawing of PolyParabel
+    QPolygonF pa2; // For drawing of PolyParabel
+
+    QGraphicsLineItem *bottomline; // on bottom of BBox
+    bool useBottomline;            //! Hint if bottomline should be used
+    qreal bottomlineY;             // vertical offset of dockpos to pos
+
+    bool repositionRequest; //
+
+    qreal topPad, botPad, leftPad, rightPad; // padding within bbox
+
+    QPointF relPos; // position relative to childRefPos of parent
+    bool useRelPos;
+};
+#endif