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linkablemapobj.cpp
author insilmaril
Wed, 03 Jun 2009 20:37:17 +0000
changeset 775 6e4b586aa88a
parent 773 340bc29da9a0
child 779 1fb50e79661c
permissions -rw-r--r--
Unscrolling temporary works 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     // Prepare showing the selection of a MapObj

    83     selected=false;

    84 

    85 	hideLinkUnselected=false;

    86 

    87 	topPad=botPad=leftPad=rightPad=0;

    88 

    89 	repositionRequest=false;

    90 

    91 	// Rel Positions

    92 	relPos=QPointF(0,0);

    93 	useRelPos=false;

    94 	useOrientation=true;

    95 

    96 	// Crossreference to treemodel

    97 	treeItem=NULL;

    98 }

    99 

   100 void LinkableMapObj::copy (LinkableMapObj* other)

   101 {

   102     MapObj::copy(other);

   103 	bboxTotal=other->bboxTotal;

   104     setLinkStyle(other->style);

   105     setLinkColor (other->linkcolor);

   106 	relPos=other->relPos;

   107 	useOrientation=other->useOrientation;

   108 	treeItem=other->treeItem;

   109 }

   110 

   111 void LinkableMapObj::setTreeItem (TreeItem *ti)

   112 {

   113 	treeItem=ti;

   114 }

   115 

   116 TreeItem* LinkableMapObj::getTreeItem () const

   117 {

   118 	return treeItem;

   119 }

   120 

   121 void LinkableMapObj::setParObj(LinkableMapObj* o)

   122 {

   123     parObj=o;

   124 }

   125 

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

   127 {

   128 }

   129 

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

   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 	}	

   153 }

   154 

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

   156 {

   157 	relPos=p;

   158 	if (parObj)

   159 	{		

   160 		parObj->calcBBoxSize();

   161 		requestReposition();

   162 	}

   163 }

   164 

   165 QPointF LinkableMapObj::getRelPos()

   166 {

   167 	if (!parObj) return QPointF();

   168 	return relPos;

   169 }

   170 

   171 qreal LinkableMapObj::getTopPad()

   172 {

   173 	return topPad;

   174 }

   175 

   176 qreal LinkableMapObj::getLeftPad()

   177 {

   178 	return leftPad;

   179 }

   180 

   181 qreal LinkableMapObj::getRightPad()

   182 {

   183 	return rightPad;

   184 }

   185 

   186 LinkableMapObj::Style LinkableMapObj::getDefLinkStyle ()

   187 {

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

   189 	if (!model)

   190 	{

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

   192 		//return UndefinedStyle;

   193 	}

   194 	Style ls=model->getMapLinkStyle();

   195 	int depth=treeItem->depth();

   196 	if (depth==0) return UndefinedStyle;

   197 	switch (ls)

   198 	{

   199 		case Line: 

   200 			return ls;

   201 			break;

   202 		case Parabel:

   203 			return ls;

   204 			break;

   205 		case PolyLine:	

   206 			if (depth>1)

   207 				return Line;

   208 			else	

   209 				return ls;

   210 			break;

   211 		case PolyParabel:	

   212 			if (depth>1)

   213 				return Parabel;

   214 			else	

   215 				return ls;

   216 			break;

   217 		default: 

   218 			break;	

   219 	}	

   220 	return UndefinedStyle;

   221 }

   222 

   223 void LinkableMapObj::setLinkStyle(Style newstyle)

   224 {

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

   226 	delLink();

   227 		

   228 	style=newstyle;

   229 

   230     if (parObj != NULL)

   231     {

   232 		QGraphicsLineItem *cl;

   233 		switch (style)

   234 		{

   235 			case UndefinedStyle:

   236 				bottomline->hide();

   237 				break;

   238 			case Line: 

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

   240 				l->setZValue(Z_LINK);

   241 				if (visible)

   242 					l->show();

   243 				else

   244 					l->hide();

   245 				break;

   246 			case Parabel:

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

   248 				{

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

   250 					cl->setZValue(Z_LINK);

   251 					if (visible)

   252 						cl->show();

   253 					else

   254 						cl->hide();

   255 					segment.append(cl);

   256 				}

   257 				pa0.resize (arcsegs+1);

   258 				break;

   259 			case PolyLine:	

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

   261 				p->setZValue(Z_LINK);

   262 				if (visible)

   263 					p->show();

   264 				else

   265 					p->hide();

   266 				pa0.resize (3);

   267 				break;

   268 			case PolyParabel:	

   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 (arcsegs*2+2);

   276 				pa1.resize (arcsegs+1);

   277 				pa2.resize (arcsegs+1);

   278 				break;

   279 			default: 

   280 				break;	

   281 		}	

   282 	} 

   283 }

   284 

   285 LinkableMapObj::Style LinkableMapObj::getLinkStyle()

   286 {

   287 	return style;

   288 }

   289 

   290 void LinkableMapObj::setHideLinkUnselected(bool b)

   291 {

   292 	hideLinkUnselected=b;

   293 	setVisibility (visible);

   294 	updateLink();

   295 }

   296 

   297 bool LinkableMapObj::getHideLinkUnselected()

   298 {

   299 	return hideLinkUnselected;

   300 }

   301 

   302 void LinkableMapObj::setLinkPos(Position lp)

   303 {

   304 	linkpos=lp;

   305 }

   306 

   307 LinkableMapObj::Position LinkableMapObj::getLinkPos()

   308 {

   309 	return linkpos;

   310 }

   311 

   312 void LinkableMapObj::setLinkColor()

   313 {

   314 	// Overloaded in BranchObj and children

   315 	// here only set default color

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

   317 	if (model)

   318 		setLinkColor (model->getMapDefLinkColor());

   319 }

   320 

   321 void LinkableMapObj::setLinkColor(QColor col)

   322 {

   323 	linkcolor=col;

   324 	pen.setColor(col);

   325     bottomline->setPen( pen );

   326 	switch (style)

   327 	{

   328 		case Line:

   329 			l->setPen( pen);

   330 			break;	

   331 		case Parabel:	

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

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

   334 			break;

   335 		case PolyLine:

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

   337 			p->setPen( pen);

   338 			break;

   339 		case PolyParabel:	

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

   341 			p->setPen( pen);

   342 			break;

   343 		default:

   344 			break;

   345 	} 

   346 }

   347 

   348 QColor LinkableMapObj::getLinkColor()

   349 {

   350 	return linkcolor;

   351 }

   352 

   353 void LinkableMapObj::setVisibility (bool v)

   354 {

   355 	MapObj::setVisibility (v);

   356 	bool visnow=visible;

   357 

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

   359 	if (hideLinkUnselected && !selected)

   360 		visnow=false;

   361 

   362 	if (visnow) 

   363 	{

   364 		bottomline->show();

   365 		switch (style)

   366 		{

   367 			case Line:

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

   369 				break;

   370 			case Parabel:	

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

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

   373 				break;	

   374 			case PolyLine:

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

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

   377 				break;

   378 			case PolyParabel:	

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

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

   381 				break;

   382 			default:

   383 				break;

   384 		}

   385 	} else 

   386 	{

   387 		bottomline->hide();

   388 		switch (style)

   389 		{

   390 			case Line:

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

   392 				break;

   393 			case Parabel:	

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

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

   396 				break;	

   397 			case PolyLine:

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

   399 				break;

   400 			case PolyParabel:	

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

   402 				break;

   403 			default:

   404 				break;

   405 		}

   406 	}	

   407 }

   408 

   409 void LinkableMapObj::setOrientation()

   410 {

   411 	Orientation orientOld=orientation;

   412 

   413 	if (!parObj) 

   414 	{

   415 		orientation=UndefinedOrientation;

   416 		return;

   417 	}

   418 		

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

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

   421 		// use the orientation of the parent:

   422 		orientation=parObj->getOrientation();

   423     else

   424     {

   425 		// calc orientation depending on position rel to parent

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

   427 			orientation=LeftOfCenter; 

   428 		else

   429 			orientation=RightOfCenter;

   430     }

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

   432 }

   433 

   434 void LinkableMapObj::updateLink()

   435 {

   436     // needs:

   437     //	childPos of parent

   438     //	orient   of parent

   439     //	style

   440     // 

   441     // sets:

   442     //	orientation

   443     //	childPos	(by calling setDockPos())

   444     //	parPos		(by calling setDockPos())

   445 	//  bottomlineY

   446     //	drawing of the link itself

   447 

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

   449 	// have parents yet...

   450 

   451 	if (!parObj)	

   452 	{

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

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

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

   456 		parPos=childPos;		

   457 		// Redraw links to children

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

   459 			treeItem->getBranchObjNum(i)->updateLink();

   460 		return;	

   461 	}

   462 

   463 	if (style==UndefinedStyle) return;	

   464 

   465 	switch (linkpos)

   466 	{

   467 		case Middle:

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

   469 			break;

   470 		case Bottom:

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

   472 			break;

   473 	}

   474 	

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

   476 	if (!link2ParPos)

   477 	{

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

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

   480 	} else	

   481 	{

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

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

   484 	} 

   485 

   486 	setDockPos(); // Call overloaded method

   487 	setOrientation();

   488 

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

   490 	double p1y=parPos.y();

   491 

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

   493 	double vy=p2y - p1y;

   494 

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

   496 	//bottomline->prepareGeometryChange();

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

   498 		qRound(childPos.y()),

   499 		qRound(p1x),

   500 		qRound(p1y) ));

   501 

   502 	double a;	// angle

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

   504 		a=M_PI_2;

   505 	else

   506 		a=atan( vy / vx );

   507 	// "turning point" for drawing polygonal links

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

   509 	

   510     // Draw the link

   511 	switch (style)

   512 	{

   513 		case Line:

   514 			//l->prepareGeometryChange();

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

   516 				qRound(parPos.y()),

   517 				qRound(p2x),

   518 				qRound(p2y) ));

   519 			break;	

   520 		case Parabel:	

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

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

   523 			{

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

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

   526 			}	

   527 			break;

   528 		case PolyLine:

   529 			pa0.clear();

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

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

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

   533 			//p->prepareGeometryChange();

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

   535 			break;

   536 		case PolyParabel:	

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

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

   539 			pa0.clear();

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

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

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

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

   544 			//p->prepareGeometryChange();

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

   546 			break;

   547 		default:

   548 			break;

   549 	} // switch (style)	

   550 }

   551 	

   552 LinkableMapObj* LinkableMapObj::getParObj()

   553 {

   554     return parObj;

   555 }

   556 

   557 QPointF LinkableMapObj::getChildPos()

   558 {

   559     return childPos;

   560 }

   561 

   562 QPointF LinkableMapObj::getParPos()

   563 {

   564     return parPos;

   565 }

   566 

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

   568 {	

   569 	if (useOrientation!=b)

   570 	{

   571 		useOrientation=b;

   572 		requestReposition();

   573 	}	

   574 }

   575 

   576 LinkableMapObj::Orientation LinkableMapObj::getOrientation()

   577 {

   578     return orientation;

   579 }

   580 

   581 QPointF LinkableMapObj::getRandPos()

   582 {

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

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

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

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

   587 }

   588 

   589 void LinkableMapObj::reposition()

   590 {

   591 }

   592 

   593 void LinkableMapObj::requestReposition()

   594 {

   595 	if (!repositionRequest)

   596 	{

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

   598 		// been done yet

   599 		repositionRequest=true;

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

   601 	}

   602 }

   603 

   604 void LinkableMapObj::forceReposition()

   605 {

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

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

   608 	// which could collect requests for a reposition.

   609 	// Then we have to call forceReposition()

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

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

   612 	// the end, thus check first:

   613 

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

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

   616 	

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

   618 	if (parObj) 

   619 		parObj->forceReposition(); 

   620 	else 

   621 		reposition(); 

   622 }

   623 

   624 bool LinkableMapObj::repositionRequested()

   625 {

   626 	return repositionRequest;

   627 }

   628 

   629 

   630 void LinkableMapObj::select()

   631 {

   632 	// select and unselect are still needed to

   633 	// handle hiding of links

   634     selected=true;

   635 	setVisibility (visible);

   636 }

   637 

   638 

   639 void LinkableMapObj::unselect()

   640 {

   641     selected=false;

   642 	// Maybe we have to hide the link:

   643 	setVisibility (visible);

   644 }

   645 

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

   647 

   648 {

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

   650 	double vy=p2y - p1y;

   651 

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

   653 	

   654 	double pnx;				// next point

   655 	double pny;

   656 	double m;

   657 

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

   659 		m=0;

   660 	else	

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

   662 	dx=vx/(arcsegs);

   663 	ya.clear();

   664 	ya<<QPointF (p1x,p1y);

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

   666 	{	

   667 		pnx=p1x+dx;

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

   669 		ya<<QPointF (pnx,pny);

   670 		p1x=pnx;

   671 		p1y=pny;

   672 	}	

   673 }

   674 

   675 QString LinkableMapObj::getLinkAttr ()

   676 {

   677 	if (hideLinkUnselected)

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

   679 	else

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

   681 	

   682 }

   683
vym