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linkablemapobj.cpp
author insilmaril
Mon, 15 Mar 2010 11:49:42 +0000
changeset 835 31841b366d5e
parent 823 0bba81dde1bc
child 836 62d621e3e550
permissions -rw-r--r--
Fixes for autoLayout (later) 
     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 /* FIXME-3

    15 LinkableMapObj::LinkableMapObj():MapObj()

    16 {

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

    18     init ();

    19 }

    20 */

    21 

    22 LinkableMapObj::LinkableMapObj(QGraphicsScene* s, TreeItem *ti) :MapObj(s,ti)

    23 {

    24 //    cout << "Const LinkableMapObj s="<<s<<"  ti="<<ti<<"  treeItem="<<treeItem<<endl;

    25     init ();

    26 }

    27 

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

    29 {

    30     copy (lmo);

    31 }

    32 

    33 LinkableMapObj::~LinkableMapObj()

    34 {

    35 	//cout << "Destructor LMO\n";

    36     delete (bottomline);

    37 	delLink();

    38 }

    39 

    40 void LinkableMapObj::delLink()

    41 {

    42 	//bottomline->hide();

    43 	switch (style)

    44 	{

    45 		case Line:

    46 			delete (l);

    47 			break;

    48 		case Parabel:

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

    50 			break;

    51 		case PolyLine:

    52 			delete (p);

    53 			break;

    54 		case PolyParabel:

    55 			delete (p);

    56 			break;

    57 		default:

    58 			break;

    59 	}		

    60 }

    61 

    62 void LinkableMapObj::init ()

    63 {

    64     parObj=NULL;

    65     parObjTmpBuf=NULL;

    66 	tmpParent=false;

    67     parPos=QPointF(0,0);

    68     childPos=QPointF(0,0);

    69 	link2ParPos=false;

    70     l=NULL;

    71 	p=NULL;

    72     orientation=UndefinedOrientation;

    73     linkwidth=20;		

    74 	thickness_start=8;

    75     style=UndefinedStyle;

    76 	linkpos=Bottom;

    77     arcsegs=13;

    78     

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

    80 	pen.setWidth (1);

    81 	pen.setColor (linkcolor);

    82 	pen.setCapStyle ( Qt::RoundCap );

    83 

    84 	useBottomline=true;

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

    86     bottomline->setZValue(Z_LINK);

    87     bottomline->show();

    88 

    89 	topPad=botPad=leftPad=rightPad=0;

    90 

    91 	repositionRequest=false;

    92 

    93 	// Rel Positions

    94 	relPos=QPointF(0,0);

    95 	useRelPos=false;

    96 }

    97 

    98 void LinkableMapObj::copy (LinkableMapObj* other)

    99 {

   100     MapObj::copy(other);

   101 	bboxTotal=other->bboxTotal;

   102     setLinkStyle(other->style);

   103     setLinkColor (other->linkcolor);

   104 	relPos=other->relPos;

   105 	treeItem=other->treeItem;

   106 }

   107 

   108 void LinkableMapObj::setParObj(LinkableMapObj* o)

   109 {

   110     parObj=o;

   111 }

   112 

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

   114 {

   115 }

   116 

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

   118 {

   119 }

   120 

   121 bool LinkableMapObj::hasParObjTmp()

   122 {

   123 	return tmpParent;

   124 }

   125 

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

   127 {

   128 	useRelPos=b;

   129 }

   130 

   131 bool LinkableMapObj::getUseRelPos ()

   132 {

   133 	return useRelPos;

   134 }

   135 

   136 void LinkableMapObj::setRelPos()

   137 {

   138 	if (parObj)

   139 	{	

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

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

   142 		parObj->calcBBoxSize();

   143 	}	

   144 }

   145 

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

   147 {

   148 	relPos=p;

   149 	if (parObj)

   150 	{		

   151 		parObj->calcBBoxSize();

   152 		requestReposition();

   153 	}

   154 }

   155 

   156 QPointF LinkableMapObj::getRelPos()

   157 {

   158 	if (!parObj) 

   159 	{

   160 		qWarning("LMO::getRelPos parObj==0");

   161 		return QPointF();

   162 	}

   163 	return relPos;

   164 }

   165 

   166 qreal LinkableMapObj::getTopPad()

   167 {

   168 	return topPad;

   169 }

   170 

   171 qreal LinkableMapObj::getLeftPad()

   172 {

   173 	return leftPad;

   174 }

   175 

   176 qreal LinkableMapObj::getRightPad()

   177 {

   178 	return rightPad;

   179 }

   180 

   181 LinkableMapObj::Style LinkableMapObj::getDefLinkStyle (TreeItem *parent)

   182 {

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

   184 	if (!model)

   185 	{

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

   187 		//return UndefinedStyle;

   188 	}

   189 	Style ls=model->getMapLinkStyle();

   190 	int depth=1+parent->depth();

   191 	if (depth==0) return UndefinedStyle;

   192 	switch (ls)

   193 	{

   194 		case Line: 

   195 			return ls;

   196 			break;

   197 		case Parabel:

   198 			return ls;

   199 			break;

   200 		case PolyLine:	

   201 			if (depth>1)

   202 				return Line;

   203 			else	

   204 				return ls;

   205 			break;

   206 		case PolyParabel:	

   207 			if (depth>1)

   208 				return Parabel;

   209 			else	

   210 				return ls;

   211 			break;

   212 		default: 

   213 			break;	

   214 	}	

   215 	return UndefinedStyle;

   216 }

   217 

   218 void LinkableMapObj::setLinkStyle(Style newstyle)

   219 {

   220 	delLink();

   221 		

   222 	style=newstyle;

   223 

   224     if (parObj != NULL)

   225     {

   226 		QGraphicsLineItem *cl;

   227 		switch (style)

   228 		{

   229 			case UndefinedStyle:

   230 				bottomline->hide();

   231 				break;

   232 			case Line: 

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

   234 				l->setZValue(Z_LINK);

   235 				if (visible)

   236 					l->show();

   237 				else

   238 					l->hide();

   239 				break;

   240 			case Parabel:

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

   242 				{

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

   244 					cl->setZValue(Z_LINK);

   245 					if (visible)

   246 						cl->show();

   247 					else

   248 						cl->hide();

   249 					segment.append(cl);

   250 				}

   251 				pa0.resize (arcsegs+1);

   252 				break;

   253 			case PolyLine:	

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

   255 				p->setZValue(Z_LINK);

   256 				if (visible)

   257 					p->show();

   258 				else

   259 					p->hide();

   260 				pa0.resize (3);

   261 				break;

   262 			case PolyParabel:	

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

   264 				p->setZValue(Z_LINK);

   265 				if (visible)

   266 					p->show();

   267 				else

   268 					p->hide();

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

   270 				pa1.resize (arcsegs+1);

   271 				pa2.resize (arcsegs+1);

   272 				break;

   273 			default: 

   274 				break;	

   275 		}	

   276 	} 

   277 }

   278 

   279 LinkableMapObj::Style LinkableMapObj::getLinkStyle()

   280 {

   281 	return style;

   282 }

   283 

   284 void LinkableMapObj::setLinkPos(Position lp)

   285 {

   286 	linkpos=lp;

   287 }

   288 

   289 LinkableMapObj::Position LinkableMapObj::getLinkPos()

   290 {

   291 	return linkpos;

   292 }

   293 

   294 void LinkableMapObj::setLinkColor()

   295 {

   296 	// Overloaded in BranchObj and children

   297 	// here only set default color

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

   299 	if (model)

   300 		setLinkColor (model->getMapDefLinkColor());

   301 }

   302 

   303 void LinkableMapObj::setLinkColor(QColor col)

   304 {

   305 	linkcolor=col;

   306 	pen.setColor(col);

   307     bottomline->setPen( pen );

   308 	switch (style)

   309 	{

   310 		case Line:

   311 			l->setPen( pen);

   312 			break;	

   313 		case Parabel:	

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

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

   316 			break;

   317 		case PolyLine:

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

   319 			p->setPen( pen);

   320 			break;

   321 		case PolyParabel:	

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

   323 			p->setPen( pen);

   324 			break;

   325 		default:

   326 			break;

   327 	} 

   328 }

   329 

   330 QColor LinkableMapObj::getLinkColor()

   331 {

   332 	return linkcolor;

   333 }

   334 

   335 void LinkableMapObj::setVisibility (bool v)

   336 {

   337 	MapObj::setVisibility (v);

   338 	updateVisibility();

   339 }

   340 

   341 void LinkableMapObj::setOrientation()

   342 {

   343 	Orientation orientOld=orientation;

   344 

   345 	if (!parObj) 

   346 	{

   347 		orientation=UndefinedOrientation;

   348 		return;

   349 	}

   350 		

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

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

   353 		// use the orientation of the parent:

   354 		orientation=parObj->getOrientation();

   355     else

   356     {

   357 		// calc orientation depending on position rel to parent

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

   359 			orientation=LeftOfCenter; 

   360 		else

   361 			orientation=RightOfCenter;

   362     }

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

   364 }

   365 

   366 void LinkableMapObj::updateVisibility()

   367 {

   368 	bool visnow=visible;

   369 

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

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

   372 		visnow=false;

   373 

   374 	if (visnow) 

   375 	{

   376 		if (useBottomline)

   377 			bottomline->show();

   378 		else	

   379 			bottomline->hide();

   380 

   381 		switch (style)

   382 		{

   383 			case Line:

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

   385 				break;

   386 			case Parabel:	

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

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

   389 				break;	

   390 			case PolyLine:

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

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

   393 				break;

   394 			case PolyParabel:	

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

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

   397 				break;

   398 			default:

   399 				break;

   400 		}

   401 	} else 

   402 	{

   403 		bottomline->hide();

   404 		switch (style)

   405 		{

   406 			case Line:

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

   408 				break;

   409 			case Parabel:	

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

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

   412 				break;	

   413 			case PolyLine:

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

   415 				break;

   416 			case PolyParabel:	

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

   418 				break;

   419 			default:

   420 				break;

   421 		}

   422 	}	

   423 }

   424 

   425 void LinkableMapObj::updateLinkGeometry()

   426 {

   427     // needs:

   428     //	childPos of parent

   429     //	orient   of parent

   430     //	style

   431     // 

   432     // sets:

   433     //	orientation

   434     //	childPos	(by calling setDockPos())

   435     //	parPos		(by calling setDockPos())

   436 	//  bottomlineY

   437     //	drawing of the link itself

   438 

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

   440 	// have parents yet...

   441 

   442 	//cout <<"LMO::updateLinkGeometry: "<<treeItem->getHeadingStd()<<"  "<<parObj<<endl;

   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 			bottomlineY=bbox.bottom()-botPad;

   465 			break;

   466 	}

   467 	

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

   469 	if (!link2ParPos)

   470 	{

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

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

   473 	} else	

   474 	{

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

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

   477 	} 

   478 

   479 	setDockPos(); // Call overloaded method

   480 	setOrientation();

   481 

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

   483 	double p1y=parPos.y();

   484 

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

   486 	double vy=p2y - p1y;

   487 

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

   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()	//FIXME-3 needed?

   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
vym