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xlinkitem.cpp
author insilmaril
Wed, 25 Nov 2009 10:58:21 +0000
changeset 807 f9f7922989d8
parent 795 6b0a5f4923d3
child 814 31de6677aa96
permissions -rw-r--r--
Added demos/vym-contribute.vym, fixes for selecting items 
     1 #include <QGraphicsScene>

     2 #include "xlinkitem.h"

     3 

     4 #include "branchitem.h"

     5 #include "linkablemapobj.h"

     6 #include "vymmodel.h"

     7 #include "xlinkobj.h"

     8 

     9 #include <iostream>

    10 using namespace std;

    11 

    12 /////////////////////////////////////////////////////////////////

    13 // XLinkItem

    14 /////////////////////////////////////////////////////////////////

    15 

    16 XLinkItem::XLinkItem (const QList<QVariant> &data, TreeItem *parent):MapItem (data,parent)

    17 

    18 {

    19 	//cout << "Const XLinkItem () "<<this<<endl;

    20 	init();

    21 }

    22 

    23 XLinkItem::~XLinkItem ()

    24 {

    25 	cout << "Destr XLinkItem "<<this<<"  lmo="<<lmo<<endl;

    26 	if (lmo){cout <<" calling delete\n"; delete (lmo);}

    27 	if (partnerXLink)

    28 	{

    29 		// Also delete partner 

    30 		cout << "  deleting partner="<<partnerXLink<<endl;

    31 		partnerXLink->partnerXLink=NULL;	// avoid endless recusion

    32 		model->deleteItem (partnerXLink);

    33 	}

    34 }

    35 

    36 

    37 void XLinkItem::init () 

    38 {

    39 	setType (XLink);

    40 	beginBranch=NULL;

    41 	endBranch=NULL;

    42 	partnerXLink=NULL;

    43 	isBeginXLink=true;

    44 	xLinkState=XLinkItem::undefinedXLink;

    45 

    46 	color=QColor (180,180,180);

    47 	width=1;

    48 }

    49 

    50 void XLinkItem::setBegin (BranchItem *bi)

    51 {

    52 	if (bi) 

    53 	{

    54 		xLinkState=initXLink;

    55 		beginBranch=bi;

    56 	}	

    57 }

    58 

    59 BranchItem* XLinkItem::getBegin ()

    60 {

    61 	return beginBranch;

    62 }

    63 

    64 void XLinkItem::setEnd (BranchItem *bi)

    65 {

    66 	if (bi) 

    67 	{

    68 		xLinkState=initXLink;

    69 		endBranch=bi;

    70 	}		

    71 }

    72 

    73 BranchItem* XLinkItem::getEnd()

    74 {

    75 	return endBranch;

    76 }

    77 

    78 void XLinkItem::setWidth (int w)

    79 {

    80 	if (isBeginXLink)

    81 	{

    82 		width=w;

    83 		if (lmo) ((XLinkObj*)lmo)->updateXLink();

    84 		return;

    85 	}

    86 	if (partnerXLink)

    87 		partnerXLink->setWidth (w);

    88 }

    89 

    90 int XLinkItem::getWidth()

    91 {

    92 	if (isBeginXLink) return width;

    93 	if (partnerXLink)

    94 		return partnerXLink->getWidth();

    95 	else

    96 		return -1;

    97 }

    98 

    99 void XLinkItem::setColor(QColor c)

   100 {

   101 	if (isBeginXLink)

   102 	{

   103 		color=c;

   104 		if (lmo) ((XLinkObj*)lmo)->updateXLink();

   105 		return;

   106 	}	

   107 	if (partnerXLink)

   108 		partnerXLink->setColor (c);

   109 }

   110 

   111 QColor XLinkItem::getColor()

   112 {

   113 	if (isBeginXLink) return color;

   114 	if (partnerXLink)

   115 		return partnerXLink->getColor();

   116 	else

   117 		return QColor();

   118 }

   119 

   120 void XLinkItem::setEnd (QPointF p)

   121 {

   122 	if (lmo) ((XLinkObj*)lmo)->setEnd (p);

   123 }

   124 

   125 bool XLinkItem::activate ()	

   126 {

   127 	if (beginBranch && endBranch)

   128 	{

   129 		if (beginBranch==endBranch) return false;

   130 

   131 		partnerXLink=model->createXLink (endBranch);

   132 		partnerXLink->setBegin (beginBranch);

   133 		partnerXLink->setEnd (endBranch);

   134 		partnerXLink->partnerXLink=this;

   135 		partnerXLink->isBeginXLink=false;

   136 

   137 		xLinkState=activeXLink;

   138 		partnerXLink->xLinkState=activeXLink;

   139 		partnerXLink->setHeading ("xLink to: "+beginBranch->getHeading());

   140 		setHeading ("xLink to: "+endBranch->getHeading());

   141 

   142 		model->updateActions();

   143 		return true;

   144 	} else

   145 		return false;

   146 }

   147 

   148 bool XLinkItem::isBegin()

   149 {

   150 	return isBeginXLink;

   151 }

   152 

   153 void XLinkItem::updateXLink()

   154 {

   155 	if(lmo && isBeginXLink) 

   156 		((XLinkObj*)lmo)->updateXLink();

   157 	else 

   158 		if (partnerXLink) partnerXLink->updateXLink();

   159 }

   160 

   161 void XLinkItem::updateVisibility()

   162 {

   163 	if (lmo) lmo->updateVisibility();

   164 }

   165 

   166 BranchItem* XLinkItem::getPartnerBranch()

   167 {

   168 	if (!beginBranch && !endBranch)

   169 		return NULL;

   170 	if (isBeginXLink)

   171 		return endBranch;

   172 	else	

   173 		return beginBranch;

   174 }

   175 

   176 

   177 XLinkItem* XLinkItem::getPartnerXLink()

   178 {

   179 	return partnerXLink;

   180 }

   181 

   182 

   183 QString XLinkItem::saveToDir ()

   184 {

   185 	QString s="";

   186 	if (beginBranch && endBranch && xLinkState==activeXLink)

   187 	{

   188 		if (beginBranch==endBranch )

   189 			qWarning ("XLI::saveToDir  beginBranch==endBranch"); //FIXME-3	s=""

   190 		else

   191 		{

   192 			QString colAttr=attribut ("color",color.name());

   193 			QString widAttr=attribut ("width",QString().setNum(width,10));

   194 			QString begSelAttr=attribut ("beginID",model->getSelectString(beginBranch));

   195 			QString endSelAttr=attribut ("endID",  model->getSelectString(endBranch));

   196 			s=beginElement ("xlink", colAttr +widAttr +begSelAttr +endSelAttr);

   197 

   198 			s+=endElement ("xlink");

   199 		}

   200 	}

   201 	return s;

   202 }

   203 

   204 XLinkObj* XLinkItem::createMapObj(QGraphicsScene *scene)  

   205 {

   206 	XLinkObj* xlo=new XLinkObj (scene,this);

   207 	lmo=(LinkableMapObj*)xlo;

   208 	return xlo;

   209 }

   210
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