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linkablemapobj.cpp
author insilmaril
Tue Aug 05 07:36:53 2008 +0000 (2008-08-05)
changeset 725 7ea31701156e
parent 723 11f9124c1cca
child 726 7f43b93242aa
permissions -rw-r--r--
Preview: Added QTreeView to mainwindow (not yet functional) 
     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 	model=NULL;

    61 

    62     depth=-1;	

    63 	mapEditor=NULL;

    64     childObj=NULL;

    65     parObj=NULL;

    66     parObjTmpBuf=NULL;

    67     parPos=QPointF(0,0);

    68     childPos=QPointF(0,0);

    69 	link2ParPos=false;

    70     l=NULL;

    71     orientation=UndefinedOrientation;

    72     linkwidth=20;		

    73 	thickness_start=8;

    74     style=UndefinedStyle;

    75 	linkpos=Bottom;

    76     arcsegs=13;

    77     

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

    79 	pen.setWidth (1);

    80 	pen.setColor (linkcolor);

    81 	pen.setCapStyle ( Qt::RoundCap );

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

    83     bottomline->setZValue(Z_LINK);

    84     bottomline->show();

    85 

    86     // Prepare showing the selection of a MapObj

    87     selected=false;

    88 

    89 	hideLinkUnselected=false;

    90 

    91 	topPad=botPad=leftPad=rightPad=0;

    92 

    93 	repositionRequest=false;

    94 

    95 	// Rel Positions

    96 	relPos=QPointF(0,0);

    97 	useRelPos=false;

    98 	useOrientation=true;

    99 

   100 	// Reset ID

   101 	objID="";

   102 }

   103 

   104 void LinkableMapObj::copy (LinkableMapObj* other)

   105 {

   106     MapObj::copy(other);

   107 	model=other->model;

   108 	bboxTotal=other->bboxTotal;

   109     setLinkStyle(other->style);

   110     setLinkColor (other->linkcolor);

   111 	relPos=other->relPos;

   112 	useOrientation=other->useOrientation;

   113 	objID=other->objID;

   114 }

   115 

   116 void LinkableMapObj::setModel (VymModel *vm)

   117 {

   118 	model=vm;

   119 }

   120 

   121 VymModel* LinkableMapObj::getModel()

   122 {

   123 	return model;

   124 }

   125 

   126 void LinkableMapObj::setChildObj(LinkableMapObj* o)

   127 {

   128     childObj=o;

   129 }

   130 

   131 void LinkableMapObj::setParObj(LinkableMapObj* o)

   132 {

   133     parObj=o;

   134 	mapEditor=parObj->getMapEditor();

   135 	model=parObj->getModel();	

   136 }

   137 

   138 void LinkableMapObj::setParObjTmp(LinkableMapObj*,QPointF,int)	// FIXME make pure virtual

   139 {

   140 }

   141 

   142 void LinkableMapObj::unsetParObjTmp()	// FIXME make pure virtual

   143 {

   144 }

   145 

   146 bool LinkableMapObj::hasParObjTmp()

   147 {

   148 	if (parObjTmpBuf) return true;

   149 	return false;

   150 }

   151 

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

   153 {

   154 	useRelPos=b;

   155 }

   156 

   157 void LinkableMapObj::setRelPos()

   158 {

   159 	if (parObj)

   160 	{	

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

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

   163 		parObj->calcBBoxSize();

   164 	}	

   165 }

   166 

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

   168 {

   169 	relPos=p;

   170 	if (parObj)

   171 	{		

   172 		parObj->calcBBoxSize();

   173 		requestReposition();

   174 	}

   175 }

   176 

   177 QPointF LinkableMapObj::getRelPos()

   178 {

   179 	if (!parObj) return QPointF();

   180 	return relPos;

   181 }

   182 

   183 qreal LinkableMapObj::getTopPad()

   184 {

   185 	return topPad;

   186 }

   187 

   188 qreal LinkableMapObj::getLeftPad()

   189 {

   190 	return leftPad;

   191 }

   192 

   193 qreal LinkableMapObj::getRightPad()

   194 {

   195 	return rightPad;

   196 }

   197 

   198 LinkableMapObj::Style LinkableMapObj::getDefLinkStyle ()

   199 {

   200 	if (!model)

   201 	{

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

   203 		return UndefinedStyle;

   204 	}

   205 	Style ls=model->getMapLinkStyle();

   206 	switch (ls)

   207 	{

   208 		case Line: 

   209 			return ls;

   210 			break;

   211 		case Parabel:

   212 			return ls;

   213 			break;

   214 		case PolyLine:	

   215 			if (depth>1)

   216 				return Line;

   217 			else	

   218 				return ls;

   219 			break;

   220 		case PolyParabel:	

   221 			if (depth>1)

   222 				return Parabel;

   223 			else	

   224 				return ls;

   225 			break;

   226 		default: 

   227 			break;	

   228 	}	

   229 	return UndefinedStyle;

   230 }

   231 

   232 void LinkableMapObj::setLinkStyle(Style newstyle)

   233 {

   234 	//if (newstyle=style) return;

   235 	delLink();

   236 		

   237 	style=newstyle;

   238 

   239     if (childObj!=NULL && parObj != NULL)

   240     {

   241 		QGraphicsLineItem *cl;

   242 		switch (style)

   243 		{

   244 			case UndefinedStyle:

   245 				bottomline->hide();

   246 				break;

   247 			case Line: 

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

   249 				l->setZValue(Z_LINK);

   250 				if (visible)

   251 					l->show();

   252 				else

   253 					l->hide();

   254 				break;

   255 			case Parabel:

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

   257 				{

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

   259 					cl->setZValue(Z_LINK);

   260 					if (visible)

   261 						cl->show();

   262 					else

   263 						cl->hide();

   264 					segment.append(cl);

   265 				}

   266 				pa0.resize (arcsegs+1);

   267 				break;

   268 			case PolyLine:	

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

   270 				p->setZValue(Z_LINK);

   271 				if (visible)

   272 					p->show();

   273 				else

   274 					p->hide();

   275 				pa0.resize (3);

   276 				break;

   277 			case PolyParabel:	

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

   279 				p->setZValue(Z_LINK);

   280 				if (visible)

   281 					p->show();

   282 				else

   283 					p->hide();

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

   285 				pa1.resize (arcsegs+1);

   286 				pa2.resize (arcsegs+1);

   287 				break;

   288 			default: 

   289 				break;	

   290 		}	

   291 	} 

   292 }

   293 

   294 LinkableMapObj::Style LinkableMapObj::getLinkStyle()

   295 {

   296 	return style;

   297 }

   298 

   299 void LinkableMapObj::setHideLinkUnselected(bool b)

   300 {

   301 	hideLinkUnselected=b;

   302 	setVisibility (visible);

   303 	updateLink();

   304 }

   305 

   306 bool LinkableMapObj::getHideLinkUnselected()

   307 {

   308 	return hideLinkUnselected;

   309 }

   310 

   311 void LinkableMapObj::setLinkPos(Position lp)

   312 {

   313 	linkpos=lp;

   314 }

   315 

   316 LinkableMapObj::Position LinkableMapObj::getLinkPos()

   317 {

   318 	return linkpos;

   319 }

   320 

   321 void LinkableMapObj::setID (const QString &s)

   322 {

   323 	objID=s;

   324 }

   325 

   326 QString LinkableMapObj::getID()

   327 {

   328 	return objID;

   329 }

   330 

   331 void LinkableMapObj::setLinkColor()

   332 {

   333 	// Overloaded in BranchObj and children

   334 	// here only set default color

   335 	if (model)

   336 		setLinkColor (model->getMapDefLinkColor());

   337 }

   338 

   339 void LinkableMapObj::setLinkColor(QColor col)

   340 {

   341 	linkcolor=col;

   342 	pen.setColor(col);

   343     bottomline->setPen( pen );

   344 	switch (style)

   345 	{

   346 		case Line:

   347 			l->setPen( pen);

   348 			break;	

   349 		case Parabel:	

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

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

   352 			break;

   353 		case PolyLine:

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

   355 			p->setPen( pen);

   356 			break;

   357 		case PolyParabel:	

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

   359 			p->setPen( pen);

   360 			break;

   361 		default:

   362 			break;

   363 	} // switch (style)	

   364 }

   365 

   366 QColor LinkableMapObj::getLinkColor()

   367 {

   368 	return linkcolor;

   369 }

   370 

   371 void LinkableMapObj::setVisibility (bool v)

   372 {

   373 	MapObj::setVisibility (v);

   374 	bool visnow=visible;

   375 

   376 	// We can hide the link, while object is not selected

   377 	if (hideLinkUnselected && !selected)

   378 		visnow=false;

   379 

   380 	if (visnow) 

   381 	{

   382 		bottomline->show();

   383 		switch (style)

   384 		{

   385 			case Line:

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

   387 				break;

   388 			case Parabel:	

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

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

   391 				break;	

   392 			case PolyLine:

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

   394 				break;

   395 			case PolyParabel:	

   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::setOrientation()

   426 {

   427 	Orientation orientOld=orientation;

   428 

   429 	if (!parObj) 

   430 	{

   431 		orientation=UndefinedOrientation;

   432 		return;

   433 	}

   434 		

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

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

   437 		// use the orientation of the parent:

   438 		orientation=parObj->getOrientation();

   439     else

   440     {

   441 		// calc orientation depending on position rel to parent

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

   443 			orientation=LeftOfCenter; 

   444 		else

   445 			orientation=RightOfCenter;

   446     }

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

   448 }

   449 

   450 void LinkableMapObj::updateLink()

   451 {

   452     // needs:

   453     //	childPos of parent

   454     //	orient   of parent

   455     //	style

   456     // 

   457     // sets:

   458     //	orientation

   459     //	childPos	(by calling setDockPos())

   460     //	parPos		(by calling setDockPos())

   461 	//  bottomlineY

   462     //	drawing of the link itself

   463 

   464 	// updateLink is called from move, but called from constructor we don't

   465 	// have parents yet...

   466 	if (style==UndefinedStyle) return;	

   467 

   468 	switch (linkpos)

   469 	{

   470 		case Middle:

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

   472 			break;

   473 		case Bottom:

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

   475 			break;

   476 	}

   477 	

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

   479 	if (!link2ParPos)

   480 	{

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

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

   483 	} else	

   484 	{

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

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

   487 	} 

   488 

   489 	setDockPos(); // Call overloaded method

   490 	setOrientation();

   491 

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

   493 	double p1y=parPos.y();

   494 

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

   496 	double vy=p2y - p1y;

   497 

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

   499 	//bottomline->prepareGeometryChange();

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

   501 		qRound(childPos.y()),

   502 		qRound(p1x),

   503 		qRound(p1y) ));

   504 

   505 	double a;	// angle

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

   507 		a=M_PI_2;

   508 	else

   509 		a=atan( vy / vx );

   510 	// "turning point" for drawing polygonal links

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

   512 	

   513     // Draw the link

   514 	switch (style)

   515 	{

   516 		case Line:

   517 			//l->prepareGeometryChange();

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

   519 				qRound(parPos.y()),

   520 				qRound(p2x),

   521 				qRound(p2y) ));

   522 			break;	

   523 		case Parabel:	

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

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

   526 			{

   527 				//segment.at(i)->prepareGeometryChange();

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

   529 			}	

   530 			break;

   531 		case PolyLine:

   532 			pa0.clear();

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

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

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

   536 			//p->prepareGeometryChange();

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

   538 			break;

   539 		case PolyParabel:	

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

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

   542 			pa0.clear();

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

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

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

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

   547 			//p->prepareGeometryChange();

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

   549 			break;

   550 		default:

   551 			break;

   552 	} // switch (style)	

   553 }

   554 	

   555 LinkableMapObj* LinkableMapObj::getChildObj()

   556 {

   557     return childObj;

   558 }

   559 

   560 LinkableMapObj* LinkableMapObj::getParObj()

   561 {

   562     return parObj;

   563 }

   564 

   565 LinkableMapObj* LinkableMapObj::findObjBySelect (QString s)

   566 {

   567 	LinkableMapObj *lmo=this;

   568 	QString part;

   569 	QString typ;

   570 	QString num;

   571 	while (!s.isEmpty() )

   572 	{

   573 		part=s.section(",",0,0);

   574 		typ=part.left (3);

   575 		num=part.right(part.length() - 3);

   576 		if (typ=="mc:")

   577 		{

   578 			if (depth>0)

   579 				return false;	// in a subtree there is no center

   580 			else

   581 				break;

   582 		} else

   583 			if (typ=="bo:")

   584 				lmo=((BranchObj*)lmo)->getBranchNum (num.toInt());

   585 			else

   586 				if (typ=="fi:")

   587 					lmo=((BranchObj*)lmo)->getFloatImageNum (num.toUInt());

   588 		if (!lmo) break;

   589 		

   590 		if (s.contains(","))

   591 			s=s.right(s.length() - part.length() -1 );

   592 		else	

   593 			break;

   594 	}

   595 	return lmo;

   596 }

   597 

   598 QPointF LinkableMapObj::getChildPos()

   599 {

   600     return childPos;

   601 }

   602 

   603 QPointF LinkableMapObj::getParPos()

   604 {

   605     return parPos;

   606 }

   607 

   608 void LinkableMapObj::setUseOrientation (const bool &b)

   609 {	

   610 	if (useOrientation!=b)

   611 	{

   612 		useOrientation=b;

   613 		requestReposition();

   614 	}	

   615 }

   616 

   617 LinkableMapObj::Orientation LinkableMapObj::getOrientation()

   618 {

   619     return orientation;

   620 }

   621 

   622 int LinkableMapObj::getDepth()

   623 {

   624     return depth;

   625 }

   626 

   627 void LinkableMapObj::setMapEditor (MapEditor *me)

   628 {

   629 	mapEditor=me;

   630 	model=mapEditor->getModel();

   631 }

   632 

   633 MapEditor* LinkableMapObj::getMapEditor ()

   634 {

   635 	return mapEditor;

   636 }

   637 

   638 QPointF LinkableMapObj::getRandPos()

   639 {

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

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

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

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

   644 }

   645 

   646 void LinkableMapObj::reposition()

   647 {

   648 }

   649 

   650 void LinkableMapObj::requestReposition()

   651 {

   652 	if (!repositionRequest)

   653 	{

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

   655 		// been done yet

   656 		repositionRequest=true;

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

   658 	}

   659 }

   660 

   661 void LinkableMapObj::forceReposition()

   662 {

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

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

   665 	// which could collect requests for a reposition.

   666 	// Then we have to call forceReposition()

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

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

   669 	// the end, thus check first:

   670 

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

   672 	

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

   674 	if (parObj) 

   675 		parObj->forceReposition(); 

   676 	else 

   677 		reposition(); 

   678 }

   679 

   680 bool LinkableMapObj::repositionRequested()

   681 {

   682 	return repositionRequest;

   683 }

   684 

   685 

   686 void LinkableMapObj::select()

   687 {

   688 	// select and unselect are still needed to

   689 	// handle hiding of links

   690     selected=true;

   691 	setVisibility (visible);

   692 }

   693 

   694 

   695 void LinkableMapObj::unselect()

   696 {

   697     selected=false;

   698 	// Maybe we have to hide the link:

   699 	setVisibility (visible);

   700 }

   701 

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

   703 

   704 {

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

   706 	double vy=p2y - p1y;

   707 

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

   709 	

   710 	double pnx;				// next point

   711 	double pny;

   712 	double m;

   713 

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

   715 		m=0;

   716 	else	

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

   718 	dx=vx/(arcsegs);

   719 	ya.clear();

   720 	ya<<QPointF (p1x,p1y);

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

   722 	{	

   723 		pnx=p1x+dx;

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

   725 		ya<<QPointF (pnx,pny);

   726 		p1x=pnx;

   727 		p1y=pny;

   728 	}	

   729 }

   730 

   731 QString LinkableMapObj::getLinkAttr ()

   732 {

   733 	if (hideLinkUnselected)

   734 		return attribut ("hideLink","true");

   735 	else

   736 		return attribut ("hideLink","false");

   737 	

   738 }

   739
vym