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linkablemapobj.cpp
author insilmaril
Tue Jan 23 11:50:53 2007 +0000 (2007-01-23)
changeset 421 5522d1da7e37
parent 411 910ba9fab728
child 427 fb74fa7bfb4c
permissions -rw-r--r--
1.8.65 Various fixes 
     1 #include <math.h>

     2 

     3 #include "linkablemapobj.h"

     4 #include "branchobj.h"

     5 #include "mapeditor.h"

     6 

     7 /////////////////////////////////////////////////////////////////

     8 // LinkableMapObj

     9 /////////////////////////////////////////////////////////////////

    10 

    11 LinkableMapObj::LinkableMapObj():MapObj()

    12 {

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

    14     init ();

    15 }

    16 

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

    18 {

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

    20     init ();

    21 }

    22 

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

    24 {

    25     copy (lmo);

    26 }

    27 

    28 LinkableMapObj::~LinkableMapObj()

    29 {

    30     delete (bottomline);

    31     delete (selbox);

    32 	delete (frame);

    33 	delLink();

    34 }

    35 

    36 void LinkableMapObj::delLink()

    37 {

    38 	switch (style)

    39 	{

    40 		case StyleLine:

    41 			delete (l);

    42 			break;

    43 		case StyleParabel:

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

    45 			break;

    46 		case StylePolyLine:

    47 			delete (p);

    48 			break;

    49 		case StylePolyParabel:

    50 			delete (p);

    51 			break;

    52 		default:

    53 			break;

    54 	}		

    55 }

    56 

    57 void LinkableMapObj::init ()

    58 {

    59     depth=-1;	

    60 	mapEditor=NULL;

    61     childObj=NULL;

    62     parObj=NULL;

    63     parObjTmpBuf=NULL;

    64     parPos=QPointF(0,0);

    65     childPos=QPointF(0,0);

    66 	link2ParPos=false;

    67     l=NULL;

    68     orientation=OrientUndef;

    69     linkwidth=20;		

    70 	thickness_start=8;

    71     style=StyleUndef;

    72 	linkpos=LinkBottom;

    73     arcsegs=13;

    74     

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

    76 	pen.setWidth (1);

    77 	pen.setColor (linkcolor);

    78 	pen.setCapStyle ( Qt::RoundCap );

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

    80     bottomline->setZValue(Z_LINK);

    81     bottomline->show();

    82 

    83     // Prepare showing the selection of a MapObj

    84     selbox = scene->addRect(QRectF(0,0,0,0), QPen(QColor(255,255,0) ), QColor(255,255,0));

    85     selbox->setZValue(Z_SELBOX);

    86     selbox->hide();

    87     selected=false;

    88 

    89 	hideLinkUnselected=false;

    90 

    91 	topPad=botPad=leftPad=rightPad=0;

    92 

    93 	// initialize frame

    94 	frame = new FrameObj (scene);

    95 	

    96 	repositionRequest=false;

    97 

    98 	// Rel Positions

    99 	relPos=QPointF(0,0);

   100 	useRelPos=false;

   101 	useOrientation=true;

   102 }

   103 

   104 void LinkableMapObj::copy (LinkableMapObj* other)

   105 {

   106     MapObj::copy(other);

   107 	bboxTotal=other->bboxTotal;

   108     setLinkStyle(other->style);

   109     setLinkColor (other->linkcolor);

   110 	relPos=other->relPos;

   111 	useOrientation=other->useOrientation;

   112 

   113 }

   114 

   115 void LinkableMapObj::setChildObj(LinkableMapObj* o)

   116 {

   117     childObj=o;

   118 }

   119 

   120 void LinkableMapObj::setParObj(LinkableMapObj* o)

   121 {

   122     parObj=o;

   123 	mapEditor=parObj->getMapEditor();

   124 }

   125 

   126 void LinkableMapObj::setParObjTmp(LinkableMapObj*,QPointF,int)

   127 {

   128 }

   129 

   130 void LinkableMapObj::unsetParObjTmp()

   131 {

   132 }

   133 

   134 bool LinkableMapObj::hasParObjTmp()

   135 {

   136 	if (parObjTmpBuf) return true;

   137 	return false;

   138 }

   139 

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

   141 {

   142 	useRelPos=b;

   143 }

   144 

   145 void LinkableMapObj::setRelPos()

   146 {

   147 	if (parObj)

   148 	{	

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

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

   151 		parObj->calcBBoxSize();

   152 	}	else

   153 	{

   154 		qWarning ("LMO::setRelPos   No parent yet!");

   155 	}

   156 }

   157 

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

   159 {

   160 	relPos=p;

   161 	if (parObj)

   162 	{		

   163 		parObj->calcBBoxSize();

   164 		requestReposition();

   165 	}	else

   166 	{

   167 		qWarning ("LMO::setRelPos   No parent yet!");

   168 	}

   169 }

   170 

   171 QPointF LinkableMapObj::getRelPos()

   172 {

   173 	if (!parObj) return QPointF();

   174 	return relPos;

   175 }

   176 

   177 qreal LinkableMapObj::getTopPad()

   178 {

   179 	return topPad;

   180 }

   181 

   182 qreal LinkableMapObj::getLeftPad()

   183 {

   184 	return leftPad;

   185 }

   186 

   187 qreal LinkableMapObj::getRightPad()

   188 {

   189 	return rightPad;

   190 }

   191 

   192 LinkStyle LinkableMapObj::getDefLinkStyle ()

   193 {

   194 	if (mapEditor==0) return StyleUndef;

   195 	LinkStyle ls=mapEditor->getMapLinkStyle();

   196 	switch (ls)

   197 	{

   198 		case StyleLine: 

   199 			return ls;

   200 			break;

   201 		case StyleParabel:

   202 			return ls;

   203 			break;

   204 		case StylePolyLine:	

   205 			if (depth>1)

   206 				return StyleLine;

   207 			else	

   208 				return ls;

   209 			break;

   210 		case StylePolyParabel:	

   211 			if (depth>1)

   212 				return StyleParabel;

   213 			else	

   214 				return ls;

   215 			break;

   216 		default: 

   217 			break;	

   218 	}	

   219 	return StyleUndef;

   220 }

   221 

   222 void LinkableMapObj::setLinkStyle(LinkStyle newstyle)

   223 {

   224 	//if (newstyle=style) return;

   225 	delLink();

   226 		

   227 	style=newstyle;

   228 

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

   230     {

   231 		QGraphicsLineItem *cl;

   232 		switch (style)

   233 		{

   234 			case StyleUndef:

   235 				bottomline->hide();

   236 				break;

   237 			case StyleLine: 

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

   239 				l->setZValue(Z_LINK);

   240 				if (visible)

   241 					l->show();

   242 				else

   243 					l->hide();

   244 				break;

   245 			case StyleParabel:

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

   247 				{

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

   249 					cl->setZValue(Z_LINK);

   250 					if (visible)

   251 						cl->show();

   252 					else

   253 						cl->hide();

   254 					segment.append(cl);

   255 				}

   256 				pa0.resize (arcsegs+1);

   257 				break;

   258 			case StylePolyLine:	

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

   260 				p->setZValue(Z_LINK);

   261 				if (visible)

   262 					p->show();

   263 				else

   264 					p->hide();

   265 				pa0.resize (3);

   266 				break;

   267 			case StylePolyParabel:	

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

   269 				p->setZValue(Z_LINK);

   270 				if (visible)

   271 					p->show();

   272 				else

   273 					p->hide();

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

   275 				pa1.resize (arcsegs+1);

   276 				pa2.resize (arcsegs+1);

   277 				break;

   278 			default: 

   279 				break;	

   280 		}	

   281 	} 

   282 }

   283 

   284 LinkStyle LinkableMapObj::getLinkStyle()

   285 {

   286 	return style;

   287 }

   288 

   289 void LinkableMapObj::setHideLinkUnselected(bool b)

   290 {

   291 	hideLinkUnselected=b;

   292 	setVisibility (visible);

   293 	updateLink();

   294 }

   295 

   296 bool LinkableMapObj::getHideLinkUnselected()

   297 {

   298 	return hideLinkUnselected;

   299 }

   300 

   301 void LinkableMapObj::setLinkPos(LinkPos lp)

   302 {

   303 	linkpos=lp;

   304 }

   305 

   306 LinkPos LinkableMapObj::getLinkPos()

   307 {

   308 	return linkpos;

   309 }

   310 

   311 

   312 void LinkableMapObj::setLinkColor()

   313 {

   314 	// Overloaded in BranchObj and childs

   315 	// here only set default color

   316 	if (mapEditor)

   317 		setLinkColor (mapEditor->getMapDefLinkColor());

   318 }

   319 

   320 void LinkableMapObj::setLinkColor(QColor col)

   321 {

   322 	linkcolor=col;

   323 	pen.setColor(col);

   324     bottomline->setPen( pen );

   325 	switch (style)

   326 	{

   327 		case StyleLine:

   328 			l->setPen( pen);

   329 			break;	

   330 		case StyleParabel:	

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

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

   333 			break;

   334 		case StylePolyLine:

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

   336 			break;

   337 		case StylePolyParabel:	

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

   339 			break;

   340 		default:

   341 			break;

   342 	} // switch (style)	

   343 }

   344 

   345 QColor LinkableMapObj::getLinkColor()

   346 {

   347 	return linkcolor;

   348 }

   349 

   350 FrameType LinkableMapObj::getFrameType()

   351 {

   352 	return frame->getFrameType();

   353 }

   354 

   355 void LinkableMapObj::setFrameType(const FrameType &t)

   356 {

   357 	frame->setFrameType(t);

   358 	calcBBoxSize();

   359 	positionBBox();

   360 	requestReposition();

   361 }

   362 

   363 void LinkableMapObj::setFrameType(const QString &t)

   364 {

   365 	frame->setFrameType(t);

   366 	calcBBoxSize();

   367 	positionBBox();

   368 	requestReposition();

   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 StyleLine:

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

   387 				break;

   388 			case StyleParabel:	

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

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

   391 				break;	

   392 			case StylePolyLine:

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

   394 				break;

   395 			case StylePolyParabel:	

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

   397 				break;

   398 			default:

   399 				break;

   400 		}

   401 	} else 

   402 	{

   403 		bottomline->hide();

   404 		switch (style)

   405 		{

   406 			case StyleLine:

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

   408 				break;

   409 			case StyleParabel:	

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

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

   412 				break;	

   413 			case StylePolyLine:

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

   415 				break;

   416 			case StylePolyParabel:	

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

   418 				break;

   419 			default:

   420 				break;

   421 		}

   422 	}	

   423 }

   424 

   425 void LinkableMapObj::setOrientation()

   426 {

   427 	LinkOrient orientOld=orientation;

   428 

   429 	if (!parObj) 

   430 	{

   431 		orientation=OrientUndef;

   432 		return;

   433 	}

   434 		

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

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

   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=OrientLeftOfCenter; 

   444 		else

   445 			orientation=OrientRightOfCenter;

   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==StyleUndef) return;	

   467 

   468 	if (frame->getFrameType() == NoFrame)

   469 		linkpos=LinkBottom;

   470 	else	

   471 		linkpos=LinkMiddle;

   472 	switch (linkpos)

   473 	{

   474 		case LinkMiddle:

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

   476 			break;

   477 		default :

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

   479 			break;

   480 	}

   481 	

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

   483 	if (!link2ParPos)

   484 	{

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

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

   487 	} else	

   488 	{

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

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

   491 	} 

   492 

   493 	setDockPos(); // Call overloaded method

   494 	setOrientation();

   495 

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

   497 	double p1y=parPos.y();

   498 

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

   500 	double vy=p2y - p1y;

   501 

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

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

   504 		qRound(childPos.y()),

   505 		qRound(p1x),

   506 		qRound(p1y) ));

   507 

   508 	double a;	// angle

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

   510 		a=M_PI_2;

   511 	else

   512 		a=atan( vy / vx );

   513 	// "turning point" for drawing polygonal links

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

   515 	

   516     // Draw the link

   517 	switch (style)

   518 	{

   519 		case StyleLine:

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

   521 				qRound(parPos.y()),

   522 				qRound(p2x),

   523 				qRound(p2y) ));

   524 			break;	

   525 		case StyleParabel:	

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

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

   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 			break;

   530 		case StylePolyLine:

   531 			pa0.clear();

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

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

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

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

   536 			break;

   537 		case StylePolyParabel:	

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

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

   540 			pa0.clear();

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

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

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

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

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

   546 			break;

   547 		default:

   548 			break;

   549 	} // switch (style)	

   550 }

   551 	

   552 LinkableMapObj* LinkableMapObj::getChildObj()

   553 {

   554     return childObj;

   555 }

   556 

   557 LinkableMapObj* LinkableMapObj::getParObj()

   558 {

   559     return parObj;

   560 }

   561 

   562 LinkableMapObj* LinkableMapObj::findObjBySelect (QString s)

   563 {

   564 	LinkableMapObj *lmo=this;

   565 	QString part;

   566 	QString typ;

   567 	QString num;

   568 	while (!s.isEmpty() )

   569 	{

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

   571 		typ=part.left (3);

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

   573 		if (typ=="mc:")

   574 		{

   575 			if (depth>0)

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

   577 			else

   578 				break;

   579 		} else

   580 			if (typ=="bo:")

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

   582 			else

   583 				if (typ=="fi:")

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

   585 		if (!lmo) break;

   586 		

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

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

   589 		else	

   590 			break;

   591 	}

   592 	return lmo;

   593 }

   594 

   595 QPointF LinkableMapObj::getChildPos()

   596 {

   597     return childPos;

   598 }

   599 

   600 QPointF LinkableMapObj::getParPos()

   601 {

   602     return parPos;

   603 }

   604 

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

   606 {	

   607 	if (useOrientation!=b)

   608 	{

   609 		useOrientation=b;

   610 		requestReposition();

   611 	}	

   612 }

   613 

   614 LinkOrient LinkableMapObj::getOrientation()

   615 {

   616     return orientation;

   617 }

   618 

   619 int LinkableMapObj::getDepth()

   620 {

   621     return depth;

   622 }

   623 

   624 void LinkableMapObj::setMapEditor (MapEditor *me)

   625 {

   626 	mapEditor=me;

   627 }

   628 

   629 MapEditor* LinkableMapObj::getMapEditor ()

   630 {

   631 	return mapEditor;

   632 }

   633 

   634 QPointF LinkableMapObj::getRandPos()

   635 {

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

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

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

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

   640 }

   641 

   642 void LinkableMapObj::reposition()

   643 {

   644 }

   645 

   646 void LinkableMapObj::requestReposition()

   647 {

   648 	if (!repositionRequest)

   649 	{

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

   651 		// been done yet

   652 		repositionRequest=true;

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

   654 	}

   655 }

   656 

   657 void LinkableMapObj::forceReposition()

   658 {

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

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

   661 	// which could collect requests for a reposition.

   662 	// Then we have to call forceReposition()

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

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

   665 	// the end, thus check first:

   666 

   667 	if (mapEditor->isRepositionBlocked()) return;

   668 	

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

   670 	

   671 	if (parObj) 

   672 		parObj->forceReposition(); 

   673 	else 

   674 		reposition(); 

   675 }

   676 

   677 bool LinkableMapObj::repositionRequested()

   678 {

   679 	return repositionRequest;

   680 }

   681 

   682 

   683 void LinkableMapObj::setSelBox()

   684 {

   685 	selbox->setRect (clickBox);

   686 }

   687 

   688 void LinkableMapObj::select()

   689 {

   690 	setSelBox();

   691     selected=true;

   692     selbox->show();

   693 	setVisibility (visible);

   694 }

   695 

   696 

   697 void LinkableMapObj::unselect()

   698 {

   699     selected=false;

   700     selbox->hide();

   701 	// Maybe we have to hide the link:

   702 	setVisibility (visible);

   703 }

   704 

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

   706 

   707 {

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

   709 	double vy=p2y - p1y;

   710 

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

   712 	

   713 	double pnx;				// next point

   714 	double pny;

   715 	double m;

   716 

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

   718 		m=0;

   719 	else	

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

   721 	dx=vx/(arcsegs);

   722 	ya.clear();

   723 	ya<<QPointF (qRound(p1x),qRound(p1y));

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

   725 	{	

   726 		pnx=p1x+dx;

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

   728 		ya<<QPointF (qRound(pnx),qRound(pny));

   729 		p1x=pnx;

   730 		p1y=pny;

   731 	}	

   732 }

   733 

   734 QString LinkableMapObj::getLinkAttr ()

   735 {

   736 	if (hideLinkUnselected)

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

   738 	else

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

   740 	

   741 }
vym