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linkablemapobj.cpp
author insilmaril
Tue, 07 Jul 2009 11:21:27 +0000
changeset 780 fe839bdfd10c
parent 779 1fb50e79661c
child 785 5987f9f15bac
permissions -rw-r--r--
vymLinks working again 
     1 #include <iostream>

     2 #include <math.h>

     3 

     4 #include "linkablemapobj.h"

     5 #include "branchobj.h"

     6 #include "vymmodel.h"

     7 

     8 using namespace std;

     9 

    10 /////////////////////////////////////////////////////////////////

    11 // LinkableMapObj

    12 /////////////////////////////////////////////////////////////////

    13 

    14 LinkableMapObj::LinkableMapObj():MapObj()

    15 {

    16   //  cout << "Const LinkableMapObj ()\n";

    17     init ();

    18 }

    19 

    20 LinkableMapObj::LinkableMapObj(QGraphicsScene* s) :MapObj(s)

    21 {

    22 //    cout << "Const LinkableMapObj (s)\n";

    23     init ();

    24 }

    25 

    26 LinkableMapObj::LinkableMapObj (LinkableMapObj* lmo) : MapObj (lmo->scene)

    27 {

    28     copy (lmo);

    29 }

    30 

    31 LinkableMapObj::~LinkableMapObj()

    32 {

    33     delete (bottomline);

    34 	delLink();

    35 }

    36 

    37 void LinkableMapObj::delLink()

    38 {

    39 	switch (style)

    40 	{

    41 		case Line:

    42 			delete (l);

    43 			break;

    44 		case Parabel:

    45 			while (!segment.isEmpty()) delete segment.takeFirst();

    46 			break;

    47 		case PolyLine:

    48 			delete (p);

    49 			break;

    50 		case PolyParabel:

    51 			delete (p);

    52 			break;

    53 		default:

    54 			break;

    55 	}		

    56 }

    57 

    58 void LinkableMapObj::init ()

    59 {

    60     parObj=NULL;

    61     parObjTmpBuf=NULL;

    62     parPos=QPointF(0,0);

    63     childPos=QPointF(0,0);

    64 	link2ParPos=false;

    65     l=NULL;

    66 	p=NULL;

    67     orientation=UndefinedOrientation;

    68     linkwidth=20;		

    69 	thickness_start=8;

    70     style=UndefinedStyle;

    71 	linkpos=Bottom;

    72     arcsegs=13;

    73     

    74 // TODO instead of linkcolor pen.color() could be used	all around

    75 	pen.setWidth (1);

    76 	pen.setColor (linkcolor);

    77 	pen.setCapStyle ( Qt::RoundCap );

    78 	bottomline=scene->addLine(QLineF(1,1,1,1),pen);

    79     bottomline->setZValue(Z_LINK);

    80     bottomline->show();

    81 

    82 	topPad=botPad=leftPad=rightPad=0;

    83 

    84 	repositionRequest=false;

    85 

    86 	// Rel Positions

    87 	relPos=QPointF(0,0);

    88 	useRelPos=false;

    89 

    90 	// Crossreference to treemodel

    91 	treeItem=NULL;

    92 }

    93 

    94 void LinkableMapObj::copy (LinkableMapObj* other)

    95 {

    96     MapObj::copy(other);

    97 	bboxTotal=other->bboxTotal;

    98     setLinkStyle(other->style);

    99     setLinkColor (other->linkcolor);

   100 	relPos=other->relPos;

   101 	treeItem=other->treeItem;

   102 }

   103 

   104 void LinkableMapObj::setTreeItem (TreeItem *ti)

   105 {

   106 	treeItem=ti;

   107 }

   108 

   109 TreeItem* LinkableMapObj::getTreeItem () const

   110 {

   111 	return treeItem;

   112 }

   113 

   114 void LinkableMapObj::setParObj(LinkableMapObj* o)

   115 {

   116     parObj=o;

   117 }

   118 

   119 void LinkableMapObj::setParObjTmp(LinkableMapObj*,QPointF,int)	// FIXME-3 make pure virtual

   120 {

   121 }

   122 

   123 void LinkableMapObj::unsetParObjTmp()	// FIXME-3 make pure virtual

   124 {

   125 }

   126 

   127 bool LinkableMapObj::hasParObjTmp()

   128 {

   129 	if (parObjTmpBuf) return true;

   130 	return false;

   131 }

   132 

   133 void LinkableMapObj::setUseRelPos (const bool &b)

   134 {

   135 	useRelPos=b;

   136 }

   137 

   138 void LinkableMapObj::setRelPos()

   139 {

   140 	if (parObj)

   141 	{	

   142 		relPos.setX (absPos.x() - parObj->getChildPos().x() );

   143 		relPos.setY (absPos.y() - parObj->getChildPos().y() );

   144 		parObj->calcBBoxSize();

   145 	}	

   146 }

   147 

   148 void LinkableMapObj::setRelPos(const QPointF &p)

   149 {

   150 	relPos=p;

   151 	if (parObj)

   152 	{		

   153 		parObj->calcBBoxSize();

   154 		requestReposition();

   155 	}

   156 }

   157 

   158 QPointF LinkableMapObj::getRelPos()

   159 {

   160 	if (!parObj) return QPointF();

   161 	return relPos;

   162 }

   163 

   164 qreal LinkableMapObj::getTopPad()

   165 {

   166 	return topPad;

   167 }

   168 

   169 qreal LinkableMapObj::getLeftPad()

   170 {

   171 	return leftPad;

   172 }

   173 

   174 qreal LinkableMapObj::getRightPad()

   175 {

   176 	return rightPad;

   177 }

   178 

   179 LinkableMapObj::Style LinkableMapObj::getDefLinkStyle ()

   180 {

   181 	VymModel *model=treeItem->getModel();

   182 	if (!model)

   183 	{

   184 		qWarning ("LMO::getDefLinkStyle   model=NULL");

   185 		//return UndefinedStyle;

   186 	}

   187 	Style ls=model->getMapLinkStyle();

   188 	int depth=treeItem->depth();

   189 	if (depth==0) return UndefinedStyle;

   190 	switch (ls)

   191 	{

   192 		case Line: 

   193 			return ls;

   194 			break;

   195 		case Parabel:

   196 			return ls;

   197 			break;

   198 		case PolyLine:	

   199 			if (depth>1)

   200 				return Line;

   201 			else	

   202 				return ls;

   203 			break;

   204 		case PolyParabel:	

   205 			if (depth>1)

   206 				return Parabel;

   207 			else	

   208 				return ls;

   209 			break;

   210 		default: 

   211 			break;	

   212 	}	

   213 	return UndefinedStyle;

   214 }

   215 

   216 void LinkableMapObj::setLinkStyle(Style newstyle)

   217 {

   218 	//if (newstyle=style) return; FIXME-3

   219 	delLink();

   220 		

   221 	style=newstyle;

   222 

   223     if (parObj != NULL)

   224     {

   225 		QGraphicsLineItem *cl;

   226 		switch (style)

   227 		{

   228 			case UndefinedStyle:

   229 				bottomline->hide();

   230 				break;

   231 			case Line: 

   232 				l = scene->addLine(QLineF(1,1,1,1),pen);

   233 				l->setZValue(Z_LINK);

   234 				if (visible)

   235 					l->show();

   236 				else

   237 					l->hide();

   238 				break;

   239 			case Parabel:

   240 				for (int i=0;i<arcsegs;i++)

   241 				{

   242 					cl = scene->addLine(QLineF(i*5,0,i*10,100),pen);

   243 					cl->setZValue(Z_LINK);

   244 					if (visible)

   245 						cl->show();

   246 					else

   247 						cl->hide();

   248 					segment.append(cl);

   249 				}

   250 				pa0.resize (arcsegs+1);

   251 				break;

   252 			case PolyLine:	

   253 				p =scene->addPolygon(QPolygonF(),pen,linkcolor);

   254 				p->setZValue(Z_LINK);

   255 				if (visible)

   256 					p->show();

   257 				else

   258 					p->hide();

   259 				pa0.resize (3);

   260 				break;

   261 			case PolyParabel:	

   262 				p = scene->addPolygon(QPolygonF(),pen,linkcolor);

   263 				p->setZValue(Z_LINK);

   264 				if (visible)

   265 					p->show();

   266 				else

   267 					p->hide();

   268 				pa0.resize (arcsegs*2+2);

   269 				pa1.resize (arcsegs+1);

   270 				pa2.resize (arcsegs+1);

   271 				break;

   272 			default: 

   273 				break;	

   274 		}	

   275 	} 

   276 }

   277 

   278 LinkableMapObj::Style LinkableMapObj::getLinkStyle()

   279 {

   280 	return style;

   281 }

   282 

   283 void LinkableMapObj::setHideLinkUnselected()

   284 {

   285 	setVisibility (visible);

   286 	updateLinkGeometry();

   287 }

   288 

   289 void LinkableMapObj::setLinkPos(Position lp)

   290 {

   291 	linkpos=lp;

   292 }

   293 

   294 LinkableMapObj::Position LinkableMapObj::getLinkPos()

   295 {

   296 	return linkpos;

   297 }

   298 

   299 void LinkableMapObj::setLinkColor()

   300 {

   301 	// Overloaded in BranchObj and children

   302 	// here only set default color

   303 	VymModel *model=treeItem->getModel();

   304 	if (model)

   305 		setLinkColor (model->getMapDefLinkColor());

   306 }

   307 

   308 void LinkableMapObj::setLinkColor(QColor col)

   309 {

   310 	linkcolor=col;

   311 	pen.setColor(col);

   312     bottomline->setPen( pen );

   313 	switch (style)

   314 	{

   315 		case Line:

   316 			l->setPen( pen);

   317 			break;	

   318 		case Parabel:	

   319 			for (int i=0; i<segment.size(); ++i)

   320 				segment.at(i)->setPen( pen);

   321 			break;

   322 		case PolyLine:

   323 			p->setBrush( QBrush(col));

   324 			p->setPen( pen);

   325 			break;

   326 		case PolyParabel:	

   327 			p->setBrush( QBrush(col));

   328 			p->setPen( pen);

   329 			break;

   330 		default:

   331 			break;

   332 	} 

   333 }

   334 

   335 QColor LinkableMapObj::getLinkColor()

   336 {

   337 	return linkcolor;

   338 }

   339 

   340 void LinkableMapObj::setVisibility (bool v)

   341 {

   342 	MapObj::setVisibility (v);

   343 	updateVisibility();

   344 }

   345 

   346 void LinkableMapObj::setOrientation()

   347 {

   348 	Orientation orientOld=orientation;

   349 

   350 	if (!parObj) 

   351 	{

   352 		orientation=UndefinedOrientation;

   353 		return;

   354 	}

   355 		

   356     // Set orientation, first look for orientation of parent

   357     if (parObj->getOrientation() != UndefinedOrientation ) 

   358 		// use the orientation of the parent:

   359 		orientation=parObj->getOrientation();

   360     else

   361     {

   362 		// calc orientation depending on position rel to parent

   363 		if (absPos.x() < QPointF(parObj->getChildPos() ).x() )

   364 			orientation=LeftOfCenter; 

   365 		else

   366 			orientation=RightOfCenter;

   367     }

   368 	if (orientOld!=orientation) requestReposition();

   369 }

   370 

   371 void LinkableMapObj::updateVisibility()

   372 {

   373 	bool visnow=visible;

   374 

   375 	if (((MapItem*)treeItem)->getHideLinkUnselected()

   376 		&& treeItem->getModel()->getSelectedLMO() !=this)

   377 		visnow=false;

   378 

   379 	if (visnow) 

   380 	{

   381 		bottomline->show();

   382 		switch (style)

   383 		{

   384 			case Line:

   385 				if (l) l->show();

   386 				break;

   387 			case Parabel:	

   388 				for (int i=0; i<segment.size(); ++i)

   389 					segment.at(i)->show();

   390 				break;	

   391 			case PolyLine:

   392 				if (!p) cout << "LMO::updateVis p==0 (PolyLine)\n"; //FIXME-3

   393 				if (p) p->show();

   394 				break;

   395 			case PolyParabel:	

   396 				if (!p) cout << "LMO::updateVis p==0 (PolyParabel) "<<treeItem->getHeading().toStdString()<<endl; //FIXME-3

   397 				if (p) p->show();

   398 				break;

   399 			default:

   400 				break;

   401 		}

   402 	} else 

   403 	{

   404 		bottomline->hide();

   405 		switch (style)

   406 		{

   407 			case Line:

   408 				if (l) l->hide();

   409 				break;

   410 			case Parabel:	

   411 				for (int i=0; i<segment.size(); ++i)

   412 					segment.at(i)->hide();

   413 				break;	

   414 			case PolyLine:

   415 				if (p) p->hide();

   416 				break;

   417 			case PolyParabel:	

   418 				if (p) p->hide();

   419 				break;

   420 			default:

   421 				break;

   422 		}

   423 	}	

   424 }

   425 

   426 void LinkableMapObj::updateLinkGeometry()

   427 {

   428     // needs:

   429     //	childPos of parent

   430     //	orient   of parent

   431     //	style

   432     // 

   433     // sets:

   434     //	orientation

   435     //	childPos	(by calling setDockPos())

   436     //	parPos		(by calling setDockPos())

   437 	//  bottomlineY

   438     //	drawing of the link itself

   439 

   440 	// updateLinkGeometry is called from move, but called from constructor we don't

   441 	// have parents yet...

   442 

   443 	if (!parObj)	

   444 	{

   445 		// If I am a mapcenter, set childPos to middle of MapCenterObj

   446 		childPos.setX( clickBox.topLeft().x() + clickBox.width()/2 );

   447 		childPos.setY( clickBox.topLeft().y() + clickBox.height()/2 );

   448 		parPos=childPos;		

   449 		// Redraw links to children

   450 		for (int i=0; i<treeItem->branchCount(); ++i)

   451 			treeItem->getBranchObjNum(i)->updateLinkGeometry();

   452 		return;	

   453 	}

   454 

   455 	if (style==UndefinedStyle) return;	

   456 

   457 	switch (linkpos)

   458 	{

   459 		case Middle:

   460 			bottomlineY=bbox.top() + bbox.height()/2;	// draw link to middle (of frame)

   461 			break;

   462 		case Bottom:

   463 			bottomlineY=bbox.bottom()-1;	// draw link to bottom of box

   464 			break;

   465 	}

   466 	

   467     double p2x,p2y;								// Set P2 Before setting

   468 	if (!link2ParPos)

   469 	{

   470 		p2x=QPointF( parObj->getChildPos() ).x();	// P1, we have to look at

   471 		p2y=QPointF( parObj->getChildPos() ).y();	// orientation

   472 	} else	

   473 	{

   474 		p2x=QPointF( parObj->getParPos() ).x();	

   475 		p2y=QPointF( parObj->getParPos() ).y();

   476 	} 

   477 

   478 	setDockPos(); // Call overloaded method

   479 	setOrientation();

   480 

   481 	double p1x=parPos.x();	// Link is drawn from P1 to P2

   482 	double p1y=parPos.y();

   483 

   484 	double vx=p2x - p1x;	// V=P2-P1

   485 	double vy=p2y - p1y;

   486 

   487 	// Draw the horizontal line below heading (from ChildPos to ParPos)

   488 	//bottomline->prepareGeometryChange();

   489 	bottomline->setLine (QLine (qRound(childPos.x()),

   490 		qRound(childPos.y()),

   491 		qRound(p1x),

   492 		qRound(p1y) ));

   493 

   494 	double a;	// angle

   495 	if (vx > -0.000001 && vx < 0.000001)

   496 		a=M_PI_2;

   497 	else

   498 		a=atan( vy / vx );

   499 	// "turning point" for drawing polygonal links

   500 	QPointF tp (-qRound(sin (a)*thickness_start), qRound(cos (a)*thickness_start));	

   501 	

   502     // Draw the link

   503 	switch (style)

   504 	{

   505 		case Line:

   506 			l->setLine( QLine(qRound (parPos.x()),

   507 				qRound(parPos.y()),

   508 				qRound(p2x),

   509 				qRound(p2y) ));

   510 			break;	

   511 		case Parabel:	

   512 			parabel (pa0, p1x,p1y,p2x,p2y);

   513 			for (int i=0; i<segment.size(); ++i)

   514 				segment.at(i)->setLine(QLineF( pa0.at(i).x(), pa0.at(i).y(),pa0.at(i+1).x(),pa0.at(i+1).y()));

   515 			break;

   516 		case PolyLine:

   517 			pa0.clear();

   518 			pa0<<QPointF (qRound(p2x+tp.x()), qRound(p2y+tp.y()));

   519 			pa0<<QPointF (qRound(p2x-tp.x()), qRound(p2y-tp.y()));

   520 			pa0<<QPointF (qRound (parPos.x()), qRound(parPos.y()) );

   521 			p->setPolygon(QPolygonF (pa0));

   522 			break;

   523 		case PolyParabel:	

   524 			parabel (pa1, p1x,p1y,p2x+tp.x(),p2y+tp.y());

   525 			parabel (pa2, p1x,p1y,p2x-tp.x(),p2y-tp.y());

   526 			pa0.clear();

   527 			for (int i=0;i<=arcsegs;i++)

   528 				pa0 << QPointF (pa1.at(i));

   529 			for (int i=0;i<=arcsegs;i++)

   530 				pa0 << QPointF (pa2.at(arcsegs-i));

   531 			p->setPolygon(QPolygonF (pa0));

   532 			break;

   533 		default:

   534 			break;

   535 	} 

   536 }

   537 	

   538 LinkableMapObj* LinkableMapObj::getParObj()

   539 {

   540     return parObj;

   541 }

   542 

   543 QPointF LinkableMapObj::getChildPos()

   544 {

   545     return childPos;

   546 }

   547 

   548 QPointF LinkableMapObj::getParPos()

   549 {

   550     return parPos;

   551 }

   552 

   553 LinkableMapObj::Orientation LinkableMapObj::getOrientation()

   554 {

   555     return orientation;

   556 }

   557 

   558 QPointF LinkableMapObj::getRandPos()

   559 {

   560 	// Choose a random position with given distance to parent:

   561 	double a=rand()%360 * 2 * M_PI / 360;

   562     return QPointF ( (int)( + 150*cos (a)),

   563                     (int)( + 150*sin (a)));

   564 }

   565 

   566 void LinkableMapObj::reposition()

   567 {

   568 }

   569 

   570 void LinkableMapObj::requestReposition()

   571 {

   572 	if (!repositionRequest)

   573 	{

   574 		// Pass on the request to parental objects, if this hasn't

   575 		// been done yet

   576 		repositionRequest=true;

   577 		if (parObj) parObj->requestReposition();

   578 	}

   579 }

   580 

   581 void LinkableMapObj::forceReposition()

   582 {

   583 	// Sometimes a reposition has to be done immediatly: For example

   584 	// if the note editor flag changes, there is no user event in mapeditor

   585 	// which could collect requests for a reposition.

   586 	// Then we have to call forceReposition()

   587 	// But no rule without exception: While loading a map or undoing it,

   588 	// we want to block expensive repositioning, but just do it once at

   589 	// the end, thus check first:

   590 

   591 	VymModel *model=treeItem->getModel();

   592 	if (model->isRepositionBlocked()) return;	

   593 	

   594 	// Pass on the request to parent objects, if this hasn't been done yet

   595 	if (parObj) 

   596 		parObj->forceReposition(); 

   597 	else 

   598 		reposition(); 

   599 }

   600 

   601 bool LinkableMapObj::repositionRequested()

   602 {

   603 	return repositionRequest;

   604 }

   605 

   606 void LinkableMapObj::parabel (QPolygonF &ya, double p1x, double p1y, double p2x, double p2y)

   607 

   608 {

   609 	double vx=p2x - p1x;	// V=P2-P1

   610 	double vy=p2y - p1y;

   611 

   612 	double dx;				// delta x during calculation of parabel

   613 	

   614 	double pnx;				// next point

   615 	double pny;

   616 	double m;

   617 

   618 	if (vx > -0.0001 && vx < 0.0001)

   619 		m=0;

   620 	else	

   621 		m=(vy / (vx*vx));

   622 	dx=vx/(arcsegs);

   623 	ya.clear();

   624 	ya<<QPointF (p1x,p1y);

   625 	for (int i=1;i<=arcsegs;i++)

   626 	{	

   627 		pnx=p1x+dx;

   628 		pny=m*(pnx-parPos.x())*(pnx-parPos.x())+parPos.y();

   629 		ya<<QPointF (pnx,pny);

   630 		p1x=pnx;

   631 		p1y=pny;

   632 	}	

   633 }

   634
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