+++ /dev/null
-#include <QDebug>
-
-#include "xlinkobj.h"
-
-#include "branchobj.h"
-#include "branchitem.h"
-#include "math.h" // atan
-#include "misc.h" // max
-
-/////////////////////////////////////////////////////////////////
-// XLinkObj
-/////////////////////////////////////////////////////////////////
-
-int XLinkObj::arrowSize = 6; // make instances
-int XLinkObj::clickBorder = 8;
-int XLinkObj::pointRadius = 10;
-int XLinkObj::d_control = 300;
-
-XLinkObj::XLinkObj (QGraphicsItem* parent,Link *l):MapObj(parent)
-{
- //qDebug()<< "Const XLinkObj (parent,Link)";
- link=l;
- init();
-}
-
-
-
-XLinkObj::~XLinkObj ()
-{
- //qDebug() << "Destr XLinkObj";
- delete (poly);
- delete (path);
- delete (ctrl_p0);
- delete (ctrl_p1);
- delete (pointerEnd);
- delete (pointerBegin);
-}
-
-
-void XLinkObj::init ()
-{
- visBranch = NULL;
-
- stateVis = Hidden;
-
- QPen pen = link->getPen();
-
- path = scene()->addPath (QPainterPath(), pen, Qt::NoBrush);
- path->setZValue (dZ_XLINK);
-
- pointerBegin = new ArrowObj(this);
- pointerBegin->setPen( pen );
- pointerBegin->setUseFixedLength( true );
- pointerBegin->setFixedLength( 0 );
-
- pointerEnd = new ArrowObj(this);
- pointerEnd->setPen( pen );
- pointerEnd->setUseFixedLength( true );
- pointerEnd->setFixedLength( 0 );
-
- pen.setStyle (Qt::SolidLine);
- poly = scene()->addPolygon (QPolygonF(), pen, pen.color());
- poly->setZValue (dZ_XLINK);
-
- // Control points for bezier path
- // (We have at least a begin branch, consider its orientation)
- initC0();
- initC1();
-
- ctrl_p0 = scene()->addEllipse (
- c0.x(), c0.y(),
- clickBorder*2, clickBorder*2,
- pen, pen.color() );
- ctrl_p1 = scene()->addEllipse (
- c1.x(), c1.y(),
- clickBorder*2, clickBorder*2,
- pen, pen.color() );
-
- beginOrient = endOrient=LinkableMapObj::UndefinedOrientation;
- pen.setWidth (1);
- pen.setStyle (Qt::DashLine);
-
- curSelection = Unselected;
-
- setVisibility (true);
-}
-
-QPointF XLinkObj::getAbsPos()
-{
- switch (curSelection)
- {
- case C0:
- return c0;
- break;
- case C1:
- return c1;
- break;
- default:
- return QPointF();
- break;
- }
-}
-
-void XLinkObj::setStyleBegin(const QString &s)
-{
- pointerBegin->setStyleEnd( s );
-}
-
-void XLinkObj::setStyleBegin(ArrowObj::OrnamentStyle os)
-{
- pointerBegin->setStyleEnd( os );
-}
-
-ArrowObj::OrnamentStyle XLinkObj::getStyleBegin()
-{
- return pointerBegin->getStyleEnd();
-}
-
-void XLinkObj::setStyleEnd(const QString &s)
-{
- pointerEnd->setStyleEnd( s );
-}
-
-void XLinkObj::setStyleEnd(ArrowObj::OrnamentStyle os)
-{
- pointerEnd->setStyleEnd( os );
-}
-
-ArrowObj::OrnamentStyle XLinkObj::getStyleEnd()
-{
- return pointerEnd->getStyleEnd();
-}
-
-QPointF XLinkObj::getBeginPos()
-{
- return beginPos;
-}
-
-QPointF XLinkObj::getEndPos()
-{
- return endPos;
-}
-
-void XLinkObj::move (QPointF p)
-{
- switch (curSelection)
- {
- case C0:
- c0=p;
- break;
- case C1:
- c1=p;
- break;
- default:
- break;
- }
- updateXLink();
-}
-
-void XLinkObj::setEnd (QPointF p)
-{
- endPos=p;
-}
-
-void XLinkObj::setSelection (CurrentSelection s)
-{
- curSelection=s;
- setVisibility();
-}
-
-void XLinkObj::setSelection (int cp)
-{
- if (cp==0)
- setSelection (C0);
- else if (cp==1)
- setSelection (C1);
- else
- qWarning()<<"XLO::setSelection cp="<<cp;
-}
-
-void XLinkObj::updateXLink()
-{
- QPointF a,b;
- QPolygonF pa;
-
- BranchObj *beginBO=NULL;
- BranchObj *endBO=NULL;
- BranchItem *bi=link->getBeginBranch();
- if ( bi) beginBO=(BranchObj*)(bi->getLMO());
- bi=link->getEndBranch();
- if (bi) endBO=(BranchObj*)(bi->getLMO());
-
- if (beginBO)
- {
- if (beginOrient != LinkableMapObj::UndefinedOrientation &&
- beginOrient != beginBO->getOrientation() )
- c0.setX( -c0.x() );
- beginOrient = beginBO->getOrientation();
- }
- if (endBO)
- {
- if (endOrient != LinkableMapObj::UndefinedOrientation &&
- endOrient != endBO->getOrientation() )
- c1.setX( -c1.x() );
- endOrient = endBO->getOrientation();
- }
-
- if (visBranch)
- {
- // Only one of the linked branches is visible
- // Draw arrowhead //FIXME-3 missing shaft of arrow
- BranchObj *bo=(BranchObj*)(visBranch->getLMO());
- if (!bo) return;
-
- a=b=bo->getChildRefPos();
-
-
- if (bo->getOrientation()==LinkableMapObj::RightOfCenter)
- {
- b.setX (b.x() + 2*arrowSize);
- pa.clear();
- pa << a <<
- b <<
- QPointF (b.x(), b.y() - arrowSize) <<
- QPointF (b.x() + arrowSize, b.y()) <<
- QPointF (b.x(), b.y() + arrowSize) <<
- b <<
- a;
- poly->setPolygon(pa);
- } else
- {
- b.setX (b.x() - 2*arrowSize);
- pa.clear();
- pa << a <<
- b <<
- QPointF (b.x(), b.y() - arrowSize) <<
- QPointF (b.x() - arrowSize, b.y()) <<
- QPointF (b.x(), b.y() + arrowSize) <<
- b <<
- a;
- poly->setPolygon (pa);
- }
- } else
- {
- // Both linked branches are visible
-
- // If a link is just drawn in the editor,
- // we have already a beginBranch
- if (beginBO) beginPos=beginBO->getChildRefPos();
- if (endBO) endPos=endBO->getChildRefPos();
-
- if (beginBO && endBO)
- {
- pointerBegin->move(beginPos + c0 );
- pointerBegin->setEndPoint(beginPos);
-
- pointerEnd->move(endPos + c1 );
- pointerEnd->setEndPoint(endPos);
- }
- }
-
- // Update control points for bezier
- QPainterPath p(beginPos);
- p.cubicTo ( beginPos + c0, endPos + c1, endPos);
-
- clickPath=p;
- path->setPath (p);
-
- // Go back to create closed curve,
- // needed for intersection check:
- clickPath.cubicTo ( endPos + c1, beginPos + c0, beginPos);
-
- QPen pen=link->getPen();
- path->setPen (pen);
- poly->setBrush (pen.color() );
-
- pointerBegin->setPen( pen );
- pointerEnd->setPen( pen );
-
- pen.setStyle (Qt::SolidLine);
-
-
- ctrl_p0->setRect (
- beginPos.x() + c0.x() - pointRadius/2, beginPos.y() + c0.y() - pointRadius/2,
- pointRadius, pointRadius );
- ctrl_p0->setPen (pen);
- ctrl_p0->setBrush (pen.color() );
-
- ctrl_p1->setRect (
- endPos.x() + c1.x() - pointRadius/2, endPos.y() + c1.y() - pointRadius/2,
- pointRadius, pointRadius );
- ctrl_p1->setPen (pen);
- ctrl_p1->setBrush (pen.color() );
-
- BranchItem *bi_begin=link->getBeginBranch();
- BranchItem *bi_end =link->getEndBranch();
- if (bi_begin && bi_end && link->getState()==Link::activeXLink)
- // Note: with MapObj being a GraphicsItem now, maybe better reparent the xlinkobj
- // line->setZValue (dZ_DEPTH * max(bi_begin->depth(),bi_end->depth()) + dZ_XLINK);
- path->setZValue (dZ_XLINK);
- else
- path->setZValue (dZ_XLINK);
-
- setVisibility();
-}
-
-void XLinkObj::positionBBox()
-{
-}
-
-void XLinkObj::calcBBoxSize()
-{
-}
-
-void XLinkObj::setVisibility (bool b)
-{
- if (stateVis==FullShowControls)
- {
- ctrl_p0->show();
- ctrl_p1->show();
- pointerBegin->setUseFixedLength( false );
- pointerEnd->setUseFixedLength( false );
- } else
- {
- ctrl_p0->hide();
- ctrl_p1->hide();
- pointerBegin->setUseFixedLength( true );
- pointerBegin->setFixedLength( 0 );
- pointerEnd->setUseFixedLength( true );
- pointerEnd->setFixedLength( 0 );
- }
-
- MapObj::setVisibility (b);
- if (b)
- {
- if (stateVis==OnlyBegin)
- {
- path->hide();
- poly->show();
- pointerBegin->hide();
- pointerEnd->hide();
- }
- else if (stateVis==OnlyEnd)
- {
- path->hide();
- poly->show();
- pointerBegin->hide();
- pointerEnd->hide();
- }
- else
- {
- path->show();
- poly->hide();
- pointerBegin->show();
- pointerEnd->show();
- }
- }
- else
- {
- poly->hide();
- path->hide();
- pointerBegin->hide();
- pointerEnd->hide();
- }
-
-}
-
-void XLinkObj::setVisibility ()
-{
- BranchItem* beginBI=link->getBeginBranch();
- BranchObj* beginBO=NULL;
- if (beginBI) beginBO=(BranchObj*)(beginBI->getLMO());
-
- BranchObj* endBO=NULL;
- BranchItem* endBI=link->getEndBranch();
- if (endBI) endBO=(BranchObj*)(endBI->getLMO());
- if (beginBO && endBO)
- {
- if(beginBO->isVisibleObj() && endBO->isVisibleObj())
- { // Both ends are visible
- visBranch=NULL;
- if (curSelection != Unselected)
- stateVis=FullShowControls;
- else
- stateVis=Full;
- setVisibility (true);
- } else
- {
- if(!beginBO->isVisibleObj() && !endBO->isVisibleObj())
- { //None of the ends is visible
- visBranch=NULL;
- stateVis=Hidden;
- setVisibility (false);
- } else
- { // Just one end is visible, draw a symbol that shows
- // that there is a link to a scrolled branch
- if (beginBO->isVisibleObj())
- {
- stateVis=OnlyBegin;
- visBranch=beginBI;
- }
- else
- {
- visBranch=endBI;
- stateVis=OnlyEnd;
- }
- setVisibility (true);
- }
- }
- }
-}
-
-void XLinkObj::initC0()
-{
- if ( !link ) return;
- BranchItem *beginBranch = link->getBeginBranch();
- if ( !beginBranch ) return;
- BranchObj *bo = beginBranch->getBranchObj();
- if ( !bo ) return;
- if ( bo->getOrientation() == LinkableMapObj::RightOfCenter )
- c0 = QPointF ( d_control, 0);
- else
- c0 = QPointF ( -d_control, 0);
-}
-
-void XLinkObj::initC1()
-{
- if (!link ) return;
- BranchItem *endBranch = link->getEndBranch();
- if (!endBranch) return;
- BranchObj *bo = endBranch->getBranchObj();
- if (!bo) return;
- if ( bo->getOrientation() == LinkableMapObj::RightOfCenter )
- c1 = QPointF ( d_control, 0);
- else
- c1 = QPointF ( -d_control, 0);
-}
-
-void XLinkObj::setC0(const QPointF &p)
-{
- c0=p;
-}
-
-QPointF XLinkObj::getC0()
-{
- return c0;
-}
-
-void XLinkObj::setC1(const QPointF &p)
-{
- c1=p;
-}
-
-QPointF XLinkObj::getC1()
-{
- return c1;
-}
-
-int XLinkObj::ctrlPointInClickBox (const QPointF &p)
-{
- CurrentSelection oldSel=curSelection;
- int ret=-1;
-
- QRectF r(p.x() - clickBorder, p.y() - clickBorder,
- clickBorder *2, clickBorder*2) ;
-
- if (curSelection==C0 || curSelection==C1)
- {
- // If Cx selected, check both ctrl points
- curSelection=C0;
- if (getClickPath().intersects (r) ) ret=0;
- curSelection=C1;
- if (getClickPath().intersects (r) ) ret=1;
- }
- curSelection=oldSel;
- return ret;
-}
-
-bool XLinkObj::isInClickBox (const QPointF &p)
-{
- // Return, if not visible at all...
- if (stateVis==Hidden) return false;
-
- CurrentSelection oldSel=curSelection;
- bool b=false;
-
- QRectF r(p.x() - clickBorder, p.y() - clickBorder,
- clickBorder *2, clickBorder*2) ;
-
- switch (stateVis)
- {
- case FullShowControls:
- // If Cx selected, check both ctrl points
- if (ctrlPointInClickBox(p) >-1) b=true;
-
- // Enable selecting the path, when a ctrl point is already selected
- if (!b && curSelection!=Unselected && clickPath.intersects (r)) b=true;
- break;
- case OnlyBegin || OnlyEnd:
- // not selected, only partially visible
- if (poly->boundingRect().contains(p) )
- b=true;
- break;
- default:
- // not selected, but path is fully visible
- curSelection=Path;
- if (getClickPath().intersects (r) ) b=true;
- break;
- }
- curSelection=oldSel;
- return b;
-}
-
-QPainterPath XLinkObj::getClickPath() // also needs mirroring if oriented left. Create method to generate the coordinates
-{
- QPainterPath p;
- switch (curSelection)
- {
- case C0:
- p.addEllipse (beginPos + c0,15,15);
- return p;
- break;
- case C1:
- p.addEllipse (endPos + c1,15,15);
- return p;
- break;
- default:
- return clickPath;
- break;
- }
-}
projects / sven / vym.git / blobdiff