--- /dev/null
+#include "xlinkobj.h"
+#include "branchobj.h"
+
+
+/////////////////////////////////////////////////////////////////
+// XLinkObj
+/////////////////////////////////////////////////////////////////
+
+int XLinkObj::arrowSize=10; // make instances
+
+XLinkObj::XLinkObj ():MapObj()
+{
+ // cout << "Const XLinkObj ()\n";
+ init();
+}
+
+XLinkObj::XLinkObj (QGraphicsScene* s):MapObj(s)
+{
+ // cout << "Const XLinkObj (s) called from MapCenterObj (s)\n";
+ init();
+}
+
+
+XLinkObj::~XLinkObj ()
+{
+// cout << "Destr XLinkObj\n";
+ if (xLinkState!=undefinedXLink)
+ deactivate();
+ delete (line);
+ delete (poly);
+}
+
+
+void XLinkObj::init ()
+{
+ beginBranch=NULL;
+ endBranch=NULL;
+ visBranch=NULL;
+ xLinkState=undefinedXLink;
+
+ color=QColor (180,180,180);
+ width=1;
+ pen.setColor (color);
+ pen.setWidth (width);
+ pen.setCapStyle ( Qt::RoundCap );
+ line=scene->addLine(QLineF(1,1,1,1),pen);
+ line->setZValue (Z_XLINK);
+ poly=scene->addPolygon(QPolygonF(),pen,color);
+ poly->setZValue (Z_XLINK);
+ setVisibility (false);
+}
+
+void XLinkObj::copy (XLinkObj* other)
+{
+ // TODO copy not used yet
+ MapObj::copy (other);
+ setVisibility (other->visible);
+ beginBranch=other->beginBranch;
+ endBranch=other->endBranch;
+ width=other->width;
+
+}
+
+void XLinkObj::setBegin (BranchObj *bo)
+{
+ if (bo)
+ {
+ xLinkState=initXLink;
+ beginBranch=bo;
+ beginPos=beginBranch->getChildPos();
+ }
+}
+
+BranchObj* XLinkObj::getBegin ()
+{
+ return beginBranch;
+}
+
+void XLinkObj::setEnd (BranchObj *bo)
+{
+ if (bo)
+ {
+ xLinkState=initXLink;
+ endBranch=bo;
+ endPos=endBranch->getChildPos();
+ }
+}
+
+BranchObj* XLinkObj::getEnd()
+{
+ return endBranch;
+}
+
+void XLinkObj::setWidth (int w)
+{
+ width=w;
+ pen.setWidth (w);
+ setColor (color);
+}
+
+int XLinkObj::getWidth()
+{
+ return pen.width();
+}
+
+void XLinkObj::setColor(QColor c)
+{
+ color=c;
+ pen.setColor (c);
+ line->setPen (pen);
+ poly->setBrush( color );
+}
+
+QColor XLinkObj::getColor()
+{
+ return pen.color();
+}
+
+void XLinkObj::setEnd (QPointF p)
+{
+ endPos=p;
+}
+
+bool XLinkObj::activate ()
+{
+ if (beginBranch && endBranch)
+ {
+ if (beginBranch==endBranch) return false;
+ xLinkState=activeXLink;
+ beginBranch->addXLink (this);
+ endBranch->addXLink (this);
+ setVisibility ();
+ return true;
+ } else
+ return false;
+}
+
+void XLinkObj::deactivate ()
+{
+ if (beginBranch)
+ beginBranch->removeXLinkRef (this);
+ beginBranch=NULL;
+ if (endBranch)
+ endBranch->removeXLinkRef (this);
+ endBranch=NULL;
+ visBranch=NULL;
+ xLinkState=undefinedXLink;
+
+ line->hide();
+}
+
+bool XLinkObj::isUsed()
+{
+ if (beginBranch || endBranch || xLinkState!=undefinedXLink)
+ return true;
+ else
+ return false;
+}
+
+void XLinkObj::updateXLink()
+{
+ QPointF a,b;
+ QPolygonF pa;
+ if (visBranch)
+ {
+ // Only one of the linked branches is visible
+ a=b=visBranch->getChildPos();
+ if (visBranch->getOrientation()==LinkableMapObj::RightOfCenter)
+ {
+ b.setX (b.x()+25);
+
+ pa.clear();
+ pa<< QPointF(b.x(),b.y())<<
+ QPointF(b.x()-arrowSize,b.y()-arrowSize)<<
+ QPointF(b.x()-arrowSize,b.y()+arrowSize);
+ poly->setPolygon(pa);
+ } else
+ {
+ b.setX (b.x()-25);
+ pa.clear();
+ pa<< QPointF(b.x(),b.y())<<
+ QPointF(b.x()+arrowSize,b.y()-arrowSize)<<
+ QPointF(b.x()+arrowSize,b.y()+arrowSize);
+ poly->setPolygon (pa);
+ }
+ } else
+ {
+ // Both linked branches are visible
+ if (beginBranch)
+ // If a link is just drawn in the editor,
+ // we have already a beginBranch
+ a=beginBranch->getChildPos();
+ else
+ // This shouldn't be reached normally...
+ a=beginPos;
+ if (xLinkState==activeXLink && endBranch)
+ b=endBranch->getChildPos();
+ else
+ b=endPos;
+ }
+
+
+ if (line->line().p1()==a && line->line().p2()==b && !visBranch)
+ {
+ // update is called from both branches, so only
+ // update if something has changed
+ return;
+ }
+ else
+ {
+ beginPos=a;
+ endPos=b;
+ line->setPen (pen);
+ line->setLine(a.x(), a.y(), b.x(), b.y());
+ }
+}
+
+BranchObj* XLinkObj::otherBranch(BranchObj* thisBranch)
+{
+ if (!beginBranch && !endBranch)
+ return NULL;
+ if (thisBranch==beginBranch)
+ return endBranch;
+ else
+ return beginBranch;
+}
+
+void XLinkObj::positionBBox()
+{
+}
+
+void XLinkObj::calcBBoxSize()
+{
+}
+
+void XLinkObj::setVisibility (bool b)
+{
+ MapObj::setVisibility (b);
+ if (b)
+ {
+ line->show();
+ if (visBranch)
+ poly->show();
+ else
+ poly->hide();
+ }
+ else
+ {
+ line->hide();
+ poly->hide();
+ }
+}
+
+void XLinkObj::setVisibility ()
+{
+ if (beginBranch && endBranch)
+ {
+ if(beginBranch->isVisibleObj() && endBranch->isVisibleObj())
+ { // Both ends are visible
+ visBranch=NULL;
+ setVisibility (true);
+ } else
+ {
+ if(!beginBranch->isVisibleObj() && !endBranch->isVisibleObj())
+ { //None of the ends is visible
+ visBranch=NULL;
+ setVisibility (false);
+ } else
+ { // Just one end is visible, draw a symbol that shows
+ // that there is a link to a scrolled branch
+ if (beginBranch->isVisibleObj())
+ visBranch=beginBranch;
+ else
+ visBranch=endBranch;
+ setVisibility (true);
+ }
+ }
+ }
+}
+
+QString XLinkObj::saveToDir ()
+{
+ QString s="";
+ if (beginBranch && endBranch &&xLinkState==activeXLink)
+ {
+ if (beginBranch==endBranch && xLinkState)
+ s="";
+ else
+ {
+ QString colAttr=attribut ("color",color.name());
+ QString widAttr=attribut ("width",QString().setNum(width,10));
+ QString begSelAttr=attribut ("beginID",beginBranch->getSelectString());
+ QString endSelAttr=attribut ("endID", endBranch->getSelectString());
+ s=beginElement ("xlink", colAttr +widAttr +begSelAttr +endSelAttr);
+
+ s+=endElement ("xlink");
+ }
+ }
+ return s;
+}
+
projects / vym / blobdiff