vym: linkablemapobj.cpp@2f57a7d2315e

     1 #include <math.h>

     3 #include "linkablemapobj.h"

     4 #include "branchobj.h"

     5 #include "mapeditor.h"

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

     8 // LinkableMapObj

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

    11 LinkableMapObj::LinkableMapObj():MapObj()

    12 {

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

    14     init ();

    15 }

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

    18 {

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

    20     init ();

    21 }

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

    24 {

    25     copy (lmo);

    26 }

    28 LinkableMapObj::~LinkableMapObj()

    29 {

    30     delete (bottomline);

    31 	delLink();

    32 }

    34 void LinkableMapObj::delLink()

    35 {

    36 	switch (style)

    37 	{

    38 		case Line:

    39 			delete (l);

    40 			break;

    41 		case Parabel:

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

    43 			break;

    44 		case PolyLine:

    45 			delete (p);

    46 			break;

    47 		case PolyParabel:

    48 			delete (p);

    49 			break;

    50 		default:

    51 			break;

    52 	}

    53 }

    55 void LinkableMapObj::init ()

    56 {

    57     depth=-1;

    58 	mapEditor=NULL;

    59     childObj=NULL;

    60     parObj=NULL;

    61     parObjTmpBuf=NULL;

    62     parPos=QPointF(0,0);

    63     childPos=QPointF(0,0);

    64 	link2ParPos=false;

    65     l=NULL;

    66     orientation=UndefinedOrientation;

    67     linkwidth=20;

    68 	thickness_start=8;

    69     style=UndefinedStyle;

    70 	linkpos=Bottom;

    71     arcsegs=13;

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

    74 	pen.setWidth (1);

    75 	pen.setColor (linkcolor);

    76 	pen.setCapStyle ( Qt::RoundCap );

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

    78     bottomline->setZValue(Z_LINK);

    79     bottomline->show();

    81     // Prepare showing the selection of a MapObj

    82     selected=false;

    84 	hideLinkUnselected=false;

    86 	topPad=botPad=leftPad=rightPad=0;

    88 	repositionRequest=false;

    90 	// Rel Positions

    91 	relPos=QPointF(0,0);

    92 	useRelPos=false;

    93 	useOrientation=true;

    94 }

    96 void LinkableMapObj::copy (LinkableMapObj* other)

    97 {

    98     MapObj::copy(other);

    99 	bboxTotal=other->bboxTotal;

   100     setLinkStyle(other->style);

   101     setLinkColor (other->linkcolor);

   102 	relPos=other->relPos;

   103 	useOrientation=other->useOrientation;

   105 }

   107 void LinkableMapObj::setChildObj(LinkableMapObj* o)

   108 {

   109     childObj=o;

   110 }

   112 void LinkableMapObj::setParObj(LinkableMapObj* o)

   113 {

   114     parObj=o;

   115 	mapEditor=parObj->getMapEditor();

   116 }

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

   119 {

   120 }

   122 void LinkableMapObj::unsetParObjTmp()

   123 {

   124 }

   126 bool LinkableMapObj::hasParObjTmp()

   127 {

   128 	if (parObjTmpBuf) return true;

   129 	return false;

   130 }

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

   133 {

   134 	useRelPos=b;

   135 }

   137 void LinkableMapObj::setRelPos()

   138 {

   139 	if (parObj)

   140 	{

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

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

   143 		parObj->calcBBoxSize();

   144 	}

   145 }

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

   148 {

   149 	relPos=p;

   150 	if (parObj)

   151 	{

   152 		parObj->calcBBoxSize();

   153 		requestReposition();

   154 	}

   155 }

   157 QPointF LinkableMapObj::getRelPos()

   158 {

   159 	if (!parObj) return QPointF();

   160 	return relPos;

   161 }

   163 qreal LinkableMapObj::getTopPad()

   164 {

   165 	return topPad;

   166 }

   168 qreal LinkableMapObj::getLeftPad()

   169 {

   170 	return leftPad;

   171 }

   173 qreal LinkableMapObj::getRightPad()

   174 {

   175 	return rightPad;

   176 }

   178 LinkableMapObj::Style LinkableMapObj::getDefLinkStyle ()

   179 {

   180 	if (mapEditor==0) return UndefinedStyle;

   181 	Style ls=mapEditor->getMapLinkStyle();

   182 	switch (ls)

   183 	{

   184 		case Line:

   185 			return ls;

   186 			break;

   187 		case Parabel:

   188 			return ls;

   189 			break;

   190 		case PolyLine:

   191 			if (depth>1)

   192 				return Line;

   193 			else

   194 				return ls;

   195 			break;

   196 		case PolyParabel:

   197 			if (depth>1)

   198 				return Parabel;

   199 			else

   200 				return ls;

   201 			break;

   202 		default:

   203 			break;

   204 	}

   205 	return UndefinedStyle;

   206 }

   208 void LinkableMapObj::setLinkStyle(Style newstyle)

   209 {

   210 	//if (newstyle=style) return;

   211 	delLink();

   213 	style=newstyle;

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

   216     {

   217 		QGraphicsLineItem *cl;

   218 		switch (style)

   219 		{

   220 			case UndefinedStyle:

   221 				bottomline->hide();

   222 				break;

   223 			case Line:

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

   225 				l->setZValue(Z_LINK);

   226 				if (visible)

   227 					l->show();

   228 				else

   229 					l->hide();

   230 				break;

   231 			case Parabel:

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

   233 				{

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

   235 					cl->setZValue(Z_LINK);

   236 					if (visible)

   237 						cl->show();

   238 					else

   239 						cl->hide();

   240 					segment.append(cl);

   241 				}

   242 				pa0.resize (arcsegs+1);

   243 				break;

   244 			case PolyLine:

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

   246 				p->setZValue(Z_LINK);

   247 				if (visible)

   248 					p->show();

   249 				else

   250 					p->hide();

   251 				pa0.resize (3);

   252 				break;

   253 			case PolyParabel:

   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 (arcsegs*2+2);

   261 				pa1.resize (arcsegs+1);

   262 				pa2.resize (arcsegs+1);

   263 				break;

   264 			default:

   265 				break;

   266 		}

   267 	}

   268 }

   270 LinkableMapObj::Style LinkableMapObj::getLinkStyle()

   271 {

   272 	return style;

   273 }

   275 void LinkableMapObj::setHideLinkUnselected(bool b)

   276 {

   277 	hideLinkUnselected=b;

   278 	setVisibility (visible);

   279 	updateLink();

   280 }

   282 bool LinkableMapObj::getHideLinkUnselected()

   283 {

   284 	return hideLinkUnselected;

   285 }

   287 void LinkableMapObj::setLinkPos(Position lp)

   288 {

   289 	linkpos=lp;

   290 }

   292 LinkableMapObj::Position LinkableMapObj::getLinkPos()

   293 {

   294 	return linkpos;

   295 }

   298 void LinkableMapObj::setLinkColor()

   299 {

   300 	// Overloaded in BranchObj and childs

   301 	// here only set default color

   302 	if (mapEditor)

   303 		setLinkColor (mapEditor->getMapDefLinkColor());

   304 }

   306 void LinkableMapObj::setLinkColor(QColor col)

   307 {

   308 	linkcolor=col;

   309 	pen.setColor(col);

   310     bottomline->setPen( pen );

   311 	switch (style)

   312 	{

   313 		case Line:

   314 			l->setPen( pen);

   315 			break;

   316 		case Parabel:

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

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

   319 			break;

   320 		case PolyLine:

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

   322 			p->setPen( pen);

   323 			break;

   324 		case PolyParabel:

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

   326 			p->setPen( pen);

   327 			break;

   328 		default:

   329 			break;

   330 	} // switch (style)

   331 }

   333 QColor LinkableMapObj::getLinkColor()

   334 {

   335 	return linkcolor;

   336 }

   338 void LinkableMapObj::setVisibility (bool v)

   339 {

   340 	MapObj::setVisibility (v);

   341 	bool visnow=visible;

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

   344 	if (hideLinkUnselected && !selected)

   345 		visnow=false;

   347 	if (visnow)

   348 	{

   349 		bottomline->show();

   350 		switch (style)

   351 		{

   352 			case Line:

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

   354 				break;

   355 			case Parabel:

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

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

   358 				break;

   359 			case PolyLine:

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

   361 				break;

   362 			case PolyParabel:

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

   364 				break;

   365 			default:

   366 				break;

   367 		}

   368 	} else

   369 	{

   370 		bottomline->hide();

   371 		switch (style)

   372 		{

   373 			case Line:

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

   375 				break;

   376 			case Parabel:

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

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

   379 				break;

   380 			case PolyLine:

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

   382 				break;

   383 			case PolyParabel:

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

   385 				break;

   386 			default:

   387 				break;

   388 		}

   389 	}

   390 }

   392 void LinkableMapObj::setOrientation()

   393 {

   394 	Orientation orientOld=orientation;

   396 	if (!parObj)

   397 	{

   398 		orientation=UndefinedOrientation;

   399 		return;

   400 	}

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

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

   404 		// use the orientation of the parent:

   405 		orientation=parObj->getOrientation();

   406     else

   407     {

   408 		// calc orientation depending on position rel to parent

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

   410 			orientation=LeftOfCenter;

   411 		else

   412 			orientation=RightOfCenter;

   413     }

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

   415 }

   417 void LinkableMapObj::updateLink()

   418 {

   419     // needs:

   420     //	childPos of parent

   421     //	orient   of parent

   422     //	style

   423     //

   424     // sets:

   425     //	orientation

   426     //	childPos	(by calling setDockPos())

   427     //	parPos		(by calling setDockPos())

   428 	//  bottomlineY

   429     //	drawing of the link itself

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

   432 	// have parents yet...

   433 	if (style==UndefinedStyle) return;

   435 	switch (linkpos)

   436 	{

   437 		case Middle:

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

   439 			break;

   440 		case Bottom:

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

   442 			break;

   443 	}

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

   446 	if (!link2ParPos)

   447 	{

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

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

   450 	} else

   451 	{

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

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

   454 	}

   456 	setDockPos(); // Call overloaded method

   457 	setOrientation();

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

   460 	double p1y=parPos.y();

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

   463 	double vy=p2y - p1y;

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

   466 	//bottomline->prepareGeometryChange();

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

   468 		qRound(childPos.y()),

   469 		qRound(p1x),

   470 		qRound(p1y) ));

   472 	double a;	// angle

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

   474 		a=M_PI_2;

   475 	else

   476 		a=atan( vy / vx );

   477 	// "turning point" for drawing polygonal links

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

   480     // Draw the link

   481 	switch (style)

   482 	{

   483 		case Line:

   484 			//l->prepareGeometryChange();

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

   486 				qRound(parPos.y()),

   487 				qRound(p2x),

   488 				qRound(p2y) ));

   489 			break;

   490 		case Parabel:

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

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

   493 			{

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

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

   496 			}

   497 			break;

   498 		case PolyLine:

   499 			pa0.clear();

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

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

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

   503 			//p->prepareGeometryChange();

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

   505 			break;

   506 		case PolyParabel:

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

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

   509 			pa0.clear();

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

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

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

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

   514 			//p->prepareGeometryChange();

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

   516 			break;

   517 		default:

   518 			break;

   519 	} // switch (style)

   520 }

   522 LinkableMapObj* LinkableMapObj::getChildObj()

   523 {

   524     return childObj;

   525 }

   527 LinkableMapObj* LinkableMapObj::getParObj()

   528 {

   529     return parObj;

   530 }

   532 LinkableMapObj* LinkableMapObj::findObjBySelect (QString s)

   533 {

   534 	LinkableMapObj *lmo=this;

   535 	QString part;

   536 	QString typ;

   537 	QString num;

   538 	while (!s.isEmpty() )

   539 	{

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

   541 		typ=part.left (3);

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

   543 		if (typ=="mc:")

   544 		{

   545 			if (depth>0)

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

   547 			else

   548 				break;

   549 		} else

   550 			if (typ=="bo:")

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

   552 			else

   553 				if (typ=="fi:")

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

   555 		if (!lmo) break;

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

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

   559 		else

   560 			break;

   561 	}

   562 	return lmo;

   563 }

   565 QPointF LinkableMapObj::getChildPos()

   566 {

   567     return childPos;

   568 }

   570 QPointF LinkableMapObj::getParPos()

   571 {

   572     return parPos;

   573 }

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

   576 {

   577 	if (useOrientation!=b)

   578 	{

   579 		useOrientation=b;

   580 		requestReposition();

   581 	}

   582 }

   584 LinkableMapObj::Orientation LinkableMapObj::getOrientation()

   585 {

   586     return orientation;

   587 }

   589 int LinkableMapObj::getDepth()

   590 {

   591     return depth;

   592 }

   594 void LinkableMapObj::setMapEditor (MapEditor *me)

   595 {

   596 	mapEditor=me;

   597 }

   599 MapEditor* LinkableMapObj::getMapEditor ()

   600 {

   601 	return mapEditor;

   602 }

   604 QPointF LinkableMapObj::getRandPos()

   605 {

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

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

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

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

   610 }

   612 void LinkableMapObj::reposition()

   613 {

   614 }

   616 void LinkableMapObj::requestReposition()

   617 {

   618 	if (!repositionRequest)

   619 	{

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

   621 		// been done yet

   622 		repositionRequest=true;

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

   624 	}

   625 }

   627 void LinkableMapObj::forceReposition()

   628 {

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

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

   631 	// which could collect requests for a reposition.

   632 	// Then we have to call forceReposition()

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

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

   635 	// the end, thus check first:

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

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

   641 	if (parObj)

   642 		parObj->forceReposition();

   643 	else

   644 		reposition();

   645 }

   647 bool LinkableMapObj::repositionRequested()

   648 {

   649 	return repositionRequest;

   650 }

   653 void LinkableMapObj::select()

   654 {

   655 	// select and unselect are still needed to

   656 	// handle hiding of links

   657     selected=true;

   658 	setVisibility (visible);

   659 }

   662 void LinkableMapObj::unselect()

   663 {

   664     selected=false;

   665 	// Maybe we have to hide the link:

   666 	setVisibility (visible);

   667 }

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

   671 {

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

   673 	double vy=p2y - p1y;

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

   677 	double pnx;				// next point

   678 	double pny;

   679 	double m;

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

   682 		m=0;

   683 	else

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

   685 	dx=vx/(arcsegs);

   686 	ya.clear();

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

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

   689 	{

   690 		pnx=p1x+dx;

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

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

   693 		p1x=pnx;

   694 		p1y=pny;

   695 	}

   696 }

   698 QString LinkableMapObj::getLinkAttr ()

   699 {

   700 	if (hideLinkUnselected)

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

   702 	else

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

   705 }

author	insilmaril
	Mon, 18 Jun 2007 15:10:19 +0000
changeset 507	2f57a7d2315e
parent 497	ab118b86bc54
child 531	be24af55da40
permissions	-rw-r--r--