xml-vym.cpp
author insilmaril
Mon, 05 May 2008 13:46:43 +0000
changeset 697 82fad0ca8206
parent 676 3dabc6424d73
child 716 191a6e396803
permissions -rw-r--r--
Some code cleanup and experimental stuff to support animations later
     1 #include "xml-vym.h"
     2 
     3 #include <QMessageBox>
     4 #include <QColor>
     5 #include <QTextStream>
     6 #include <iostream>
     7 #include <typeinfo>
     8 
     9 #include "misc.h"
    10 #include "settings.h"
    11 #include "linkablemapobj.h"
    12 #include "version.h"
    13 
    14 static BranchObj *lastBranch;
    15 static FloatObj *lastFloat;
    16 static OrnamentedObj *lastOO;
    17 
    18 extern Settings settings;
    19 extern QString vymVersion;
    20 
    21 /*
    22 parseVYMHandler::parseVYMHandler() {}
    23 
    24 parseVYMHandler::~parseVYMHandler() {}
    25 
    26 QString parseVYMHandler::errorProtocol() { return errorProt; }
    27 
    28 */
    29 
    30 bool parseVYMHandler::startDocument()
    31 {
    32     errorProt = "";
    33     state = StateInit;
    34     laststate = StateInit;
    35 	stateStack.clear();
    36 	stateStack.append(StateInit);
    37 	htmldata="";
    38 	isVymPart=false;
    39     return true;
    40 }
    41 
    42 
    43 /*
    44 QString parseVYMHandler::parseHREF(QString href)
    45 {
    46 	QString type=href.section(":",0,0);
    47 	QString path=href.section(":",1,1);
    48 	if (!tmpDir.endsWith("/"))
    49 		return tmpDir + "/" + path;
    50 	else	
    51 		return tmpDir + path;
    52 }
    53 */
    54 bool parseVYMHandler::startElement  ( const QString&, const QString&,
    55                     const QString& eName, const QXmlAttributes& atts ) 
    56 {
    57     QColor col;
    58 	/* Testing
    59 	cout << "startElement <"<< qPrintable(eName)
    60 		<<">  state="<<state 
    61 		<<"  laststate="<<stateStack.last()
    62 		<<"   loadMode="<<loadMode
    63 		<<"       line="<<QXmlDefaultHandler::lineNumber()
    64 		<<endl;
    65 	*/	
    66 	stateStack.append (state);	
    67     if ( state == StateInit && (eName == "vymmap")  ) 
    68 	{
    69         state = StateMap;
    70 
    71 		if (loadMode==NewMap)
    72 			model->clear();	// remove existing mapCenter
    73 
    74 		// Check version
    75 		if (!atts.value( "version").isEmpty() ) 
    76 		{
    77 			if (!checkVersion(atts.value("version")))
    78 				QMessageBox::warning( 0, "Warning: Version Problem" ,
    79 				   "<h3>Map is newer than VYM</h3>"
    80 				   "<p>The map you are just trying to load was "
    81 				   "saved using vym " +atts.value("version")+". "
    82 				   "The version of this vym is " + vymVersion + 
    83 				   ". If you run into problems after pressing "
    84 				   "the ok-button below, updating vym should help.");
    85 			else	   
    86 				model->setVersion(atts.value( "version" ));
    87 
    88 		}
    89 
    90 		if (loadMode==NewMap )
    91 		{
    92 			// Create mapCenter
    93 			model->clear();
    94 			lastBranch=model->first();	// avoid empty pointer
    95 
    96 			if (!atts.value( "author").isEmpty() )
    97 				model->setAuthor(atts.value( "author" ) );
    98 			if (!atts.value( "comment").isEmpty() )
    99 				model->setComment (atts.value( "comment" ) );
   100 			if (!atts.value( "backgroundColor").isEmpty() )
   101 			{
   102 				col.setNamedColor(atts.value("backgroundColor"));
   103 				model->getScene()->setBackgroundBrush(col);
   104 			}	    
   105 			if (!atts.value( "selectionColor").isEmpty() )
   106 			{
   107 				col.setNamedColor(atts.value("selectionColor"));
   108 				model->getMapEditor()->setSelectionColor(col);
   109 			}	    
   110 			if (!atts.value( "linkColorHint").isEmpty() ) 
   111 			{
   112 				if (atts.value("linkColorHint")=="HeadingColor")
   113 					model->getMapEditor()->setMapLinkColorHint(LinkableMapObj::HeadingColor);
   114 				else
   115 					model->getMapEditor()->setMapLinkColorHint(LinkableMapObj::DefaultColor);
   116 			}
   117 			if (!atts.value( "linkStyle").isEmpty() ) 
   118 				model->getMapEditor()->setMapLinkStyle(atts.value("linkStyle"));
   119 			if (!atts.value( "linkColor").isEmpty() ) 
   120 			{
   121 				col.setNamedColor(atts.value("linkColor"));
   122 				model->getMapEditor()->setMapDefLinkColor(col);
   123 			}	
   124 			if (!atts.value( "defXLinkColor").isEmpty() ) 
   125 			{
   126 				col.setNamedColor(atts.value("defXLinkColor"));
   127 				model->getMapEditor()->setMapDefXLinkColor(col);
   128 			}	
   129 			if (!atts.value( "defXLinkWidth").isEmpty() ) 
   130 				model->getMapEditor()->setMapDefXLinkWidth(atts.value("defXLinkWidth").toInt ());
   131 		}	
   132 	} else if ( eName == "select" && state == StateMap ) 
   133 	{
   134 		state=StateMapSelect;
   135 	} else if ( eName == "setting" && state == StateMap ) 
   136 	{
   137 		state=StateMapSetting;
   138 		if (loadMode==NewMap)
   139 			readSettingAttr (atts);
   140 	} else if ( eName == "mapcenter" && state == StateMap ) 
   141 	{
   142 		state=StateMapCenter;
   143 		if (loadMode==NewMap)
   144 		{	
   145 			// Really use the found mapcenter as MCO in a new map
   146 
   147 			lastBranch=model->addMapCenter(); 
   148 		} else
   149 		{
   150 			// Treat the found mapcenter as a branch 
   151 			// in an existing map
   152 			LinkableMapObj* lmo=model->getSelection();
   153 			if (lmo && (typeid(*lmo) == typeid(BranchObj) ) 
   154 			        || (typeid(*lmo) == typeid(MapCenterObj) ) )
   155 			{
   156 				lastBranch=(BranchObj*)lmo;
   157 				if (loadMode==ImportAdd)
   158 				{
   159 					lastBranch->addBranch();
   160 					lastBranch=lastBranch->getLastBranch();
   161 				} else
   162 					lastBranch->clear();
   163 			} else
   164 				return false;
   165 		}
   166 		readBranchAttr (atts);
   167 	} else if ( 
   168 		(eName == "standardflag" ||eName == "standardFlag") && 
   169 		(state == StateMapCenter || state==StateBranch)) 
   170 	{
   171 		state=StateStandardFlag;
   172 	} else if ( eName == "heading" && (state == StateMapCenter||state==StateBranch)) 
   173 	{
   174 		laststate=state;
   175 		state=StateHeading;
   176 		if (!atts.value( "textColor").isEmpty() ) 
   177 		{
   178 			col.setNamedColor(atts.value("textColor"));
   179 			lastBranch->setColor(col );
   180 		}	    
   181 	} else if ( eName == "note" && 
   182 				(state == StateMapCenter ||state==StateBranch))
   183 	{	// only for backward compatibility (<1.4.6). Use htmlnote now.
   184 		state=StateNote;
   185 		if (!readNoteAttr (atts) ) return false;
   186 	} else if ( eName == "htmlnote" && state == StateMapCenter) 
   187 	{
   188 		laststate=state;
   189 		state=StateHtmlNote;
   190     } else if ( eName == "floatimage" && 
   191 				(state == StateMapCenter ||state==StateBranch)) 
   192 	{
   193 		state=StateFloatImage;
   194         lastBranch->addFloatImage();
   195 		lastFloat=lastBranch->getLastFloatImage();
   196 		if (!readFloatImageAttr(atts)) return false;
   197 	} else if ( (eName == "branch"||eName=="floatimage") && state == StateMap) 
   198 	{
   199 		// This is used in vymparts, which have no mapcenter!
   200 		isVymPart=true;
   201 		LinkableMapObj* lmo=model->getSelection();
   202 		if (!lmo)
   203 		{
   204 			// If a vym part is _loaded_ (not imported), 
   205 			// selection==lmo==NULL
   206 			// Treat it like ImportAdd then...
   207 			loadMode=ImportAdd;
   208 			lmo=model->first();		// FIXME this used to be lmo=mc before
   209 		}	
   210 		if (lmo && (typeid(*lmo) == typeid(BranchObj) ) 
   211 				|| (typeid(*lmo) == typeid(MapCenterObj) ) )
   212 		{
   213 			lastBranch=(BranchObj*)(lmo);
   214 			if (eName=="branch")
   215 			{
   216 				state=StateBranch;
   217 				if (loadMode==ImportAdd)
   218 				{
   219 					lastBranch->addBranch();
   220 					lastBranch=lastBranch->getLastBranch();
   221 					
   222 				} else
   223 					lastBranch->clear();
   224 				readBranchAttr (atts);
   225 			} else if (eName=="floatimage")
   226 			{
   227 				state=StateFloatImage;
   228 				lastBranch->addFloatImage();
   229 				lastFloat=lastBranch->getLastFloatImage();
   230 				if (!readFloatImageAttr(atts)) return false;
   231 			} else return false;
   232 		} else return false;
   233 	} else if ( eName == "branch" && state == StateMapCenter) 
   234 	{
   235 		state=StateBranch;
   236 		lastBranch->addBranch();
   237 		lastBranch=lastBranch->getLastBranch();
   238 		readBranchAttr (atts);
   239 	} else if ( eName == "htmlnote" && state == StateBranch) 
   240 	{
   241 		laststate=state;
   242 		state=StateHtmlNote;
   243 		no.clear();
   244 		if (!atts.value( "fonthint").isEmpty() ) 
   245 			no.setFontHint(atts.value ("fonthint") );
   246 	} else if ( eName == "frame" && (state == StateBranch||state==StateMapCenter)) 
   247 	{
   248 		laststate=state;
   249 		state=StateFrame;
   250 		if (!readFrameAttr(atts)) return false;
   251     } else if ( eName == "xlink" && state == StateBranch ) 
   252 	{
   253 		state=StateBranchXLink;
   254 		if (!readXLinkAttr (atts)) return false;
   255     } else if ( eName == "branch" && state == StateBranch ) 
   256 	{
   257         lastBranch->addBranch();
   258 		lastBranch=lastBranch->getLastBranch();		
   259 		readBranchAttr (atts);
   260     } else if ( eName == "html" && state == StateHtmlNote ) 
   261 	{
   262 		state=StateHtml;
   263 		htmldata="<"+eName;
   264 		readHtmlAttr(atts);
   265 		htmldata+=">";
   266     } else if ( state == StateHtml ) 
   267 	{
   268 		// accept all while in html mode,
   269 		htmldata+="<"+eName;
   270 		readHtmlAttr(atts);
   271 		htmldata+=">";
   272     } else
   273         return false;   // Error
   274     return true;
   275 }
   276 
   277 bool parseVYMHandler::endElement  ( const QString&, const QString&, const QString &eName)
   278 {
   279 	/* Testing
   280 	cout << "endElement </" <<qPrintable(eName)
   281 		<<">  state=" <<state 
   282 		<<"  laststate=" <<laststate
   283 		<<"  stateStack="<<stateStack.last() 
   284 		<<endl;
   285 	*/
   286     switch ( state ) 
   287 	{
   288         case StateBranch: 
   289 			lastBranch=(BranchObj*)(lastBranch->getParObj());
   290             break;
   291         case StateHtml: 
   292 			htmldata+="</"+eName+">";
   293 			if (eName=="html")
   294 			{
   295 				state=StateHtmlNote;  
   296 				htmldata.replace ("<br></br>","<br />");
   297 				no.setNote (htmldata);
   298 				lastBranch->setNote (no);
   299 			}	
   300 			break;
   301 		default: 
   302 			break;
   303     }  
   304 	state=stateStack.takeLast();	
   305 	return true;
   306 }
   307 
   308 bool parseVYMHandler::characters   ( const QString& ch)
   309 {
   310 	//cout << "characters \""<<ch<<"\"  state="<<state <<"  laststate="<<laststate<<endl;
   311 
   312 	QString ch_org=quotemeta (ch);
   313     QString ch_simplified=ch.simplifyWhiteSpace();
   314     if ( ch_simplified.isEmpty() ) return true;
   315 
   316     switch ( state ) 
   317     {
   318         case StateInit: break;
   319         case StateMap: break; 
   320 		case StateMapSelect:
   321 			model->select(ch_simplified);
   322 			break;
   323 		case StateMapSetting:break;
   324         case StateMapCenter: break;
   325         case StateNote:
   326 			lastBranch->setNote(ch_simplified);
   327 			break;
   328         case StateBranch: break;
   329         case StateStandardFlag: 
   330             lastBranch->activateStandardFlag(ch_simplified); 
   331             break;
   332         case StateFloatImage: break;
   333         case StateHtmlNote: break;
   334         case StateHtml:
   335 			htmldata+=ch_org;
   336 			break;
   337         case StateHeading: 
   338             lastBranch->setHeading(ch_simplified);
   339             break;
   340         default: 
   341 			return false;
   342     }
   343     return true;
   344 }
   345 
   346 QString parseVYMHandler::errorString() 
   347 {
   348     return "the document is not in the VYM file format";
   349 }
   350 
   351 bool parseVYMHandler::readBranchAttr (const QXmlAttributes& a)
   352 {
   353 	lastOO=lastBranch;
   354 	if (!readOOAttr(a)) return false;
   355 
   356 	if (!a.value( "scrolled").isEmpty() )
   357 		lastBranch->toggleScroll();
   358 	if (!a.value( "frameType").isEmpty() ) 
   359 		lastOO->setFrameType (a.value("frameType")); //Compatibility 1.8.1
   360 
   361 	if (!a.value( "incImgV").isEmpty() ) 
   362 	{	
   363 		if (a.value("incImgV")=="true")
   364 			lastBranch->setIncludeImagesVer(true);
   365 		else	
   366 			lastBranch->setIncludeImagesVer(false);
   367 	}	
   368 	if (!a.value( "incImgH").isEmpty() ) 
   369 	{	
   370 		if (a.value("incImgH")=="true")
   371 			lastBranch->setIncludeImagesHor(true);
   372 		else	
   373 			lastBranch->setIncludeImagesHor(false);
   374 	}	
   375 	return true;	
   376 }
   377 
   378 bool parseVYMHandler::readFrameAttr (const QXmlAttributes& a)
   379 {
   380 	bool ok;
   381 	int x;
   382 	if (lastOO)
   383 	{
   384 		if (!a.value( "frameType").isEmpty() ) 
   385 			lastOO->setFrameType (a.value("frameType"));
   386 		if (!a.value( "penColor").isEmpty() ) 
   387 			lastOO->setFramePenColor (a.value("penColor"));
   388 		if (!a.value( "brushColor").isEmpty() ) 
   389 			lastOO->setFrameBrushColor (a.value("brushColor"));
   390 		if (!a.value( "padding").isEmpty() ) 
   391 		{
   392 			x=a.value("padding").toInt(&ok);
   393 			if (ok) lastOO->setFramePadding(x);
   394 		}	
   395 		if (!a.value( "borderWidth").isEmpty() ) 
   396 		{
   397 			x=a.value("borderWidth").toInt(&ok);
   398 			if (ok) lastOO->setFrameBorderWidth(x);
   399 		}	
   400 	}		
   401 	return true;
   402 }
   403 
   404 bool parseVYMHandler::readOOAttr (const QXmlAttributes& a)
   405 {
   406 	if (lastOO)
   407 	{
   408 		bool okx,oky;
   409 		float x,y;
   410 		if (!a.value( "relPosX").isEmpty() ) 
   411 		{
   412 			if (!a.value( "relPosY").isEmpty() ) 
   413 			{
   414 				x=a.value("relPosX").toFloat (&okx);
   415 				y=a.value("relPosY").toFloat (&oky);
   416 				if (okx && oky  )
   417 				{
   418 					lastOO->setUseRelPos (true);
   419 					lastOO->move2RelPos (x,y);
   420 				}	
   421 				else
   422 					return false;   // Couldn't read relPos
   423 			}           
   424 		}           
   425 		if (!a.value( "absPosX").isEmpty() && loadMode==NewMap ) 
   426 		{
   427 			if (!a.value( "absPosY").isEmpty() ) 
   428 			{
   429 				x=a.value("absPosX").toFloat (&okx);
   430 				y=a.value("absPosY").toFloat (&oky);
   431 				if (okx && oky  )
   432 					lastOO->move(x,y);
   433 				else
   434 					return false;   // Couldn't read absPos
   435 			}           
   436 		}           
   437 		if (!a.value( "id").isEmpty() ) 
   438 			lastOO->setID (a.value ("id"));
   439 		if (!a.value( "url").isEmpty() ) 
   440 			lastOO->setURL (a.value ("url"));
   441 		if (!a.value( "vymLink").isEmpty() ) 
   442 			lastOO->setVymLink (a.value ("vymLink"));
   443 		if (!a.value( "hideInExport").isEmpty() ) 
   444 			if (a.value("hideInExport")=="true")
   445 				lastOO->setHideInExport(true);
   446 
   447 		if (!a.value( "hideLink").isEmpty()) 
   448 		{
   449 			if (a.value ("hideLink") =="true")
   450 				lastOO->setHideLinkUnselected(true);
   451 			else	
   452 				lastOO->setHideLinkUnselected(false);
   453 		}	
   454 	}
   455 	return true;	
   456 }
   457 
   458 bool parseVYMHandler::readNoteAttr (const QXmlAttributes& a)
   459 {	// only for backward compatibility (<1.4.6). Use htmlnote now.
   460 	no.clear();
   461 	QString fn;
   462 	if (!a.value( "href").isEmpty() ) 
   463 	{
   464 		// Load note
   465 		fn=parseHREF(a.value ("href") );
   466 		QFile file (fn);
   467 		QString s;						// Reading a note
   468 
   469 		if ( !file.open( QIODevice::ReadOnly) )
   470 		{
   471 			qWarning ("parseVYMHandler::readNoteAttr:  Couldn't load "+fn);
   472 			return false;
   473 		}	
   474 		QTextStream stream( &file );
   475 		QString lines;
   476 		while ( !stream.atEnd() ) {
   477 			lines += stream.readLine()+"\n"; 
   478 		}
   479 		file.close();
   480 
   481 		lines ="<html><head><meta name=\"qrichtext\" content=\"1\" /></head><body>"+lines + "</p></body></html>";
   482 		no.setNote (lines);
   483 	}		
   484 	if (!a.value( "fonthint").isEmpty() ) 
   485 		no.setFontHint(a.value ("fonthint") );
   486 	lastBranch->setNote(no);
   487 	return true;
   488 }
   489 
   490 bool parseVYMHandler::readFloatImageAttr (const QXmlAttributes& a)
   491 {
   492 	lastOO=lastFloat;
   493 	
   494 	//if (!readOOAttr(a)) return false;
   495 
   496 	if (!a.value( "useOrientation").isEmpty() ) 
   497 	{
   498 		if (a.value ("useOrientation") =="true")
   499 			lastFloat->setUseOrientation (true);
   500 		else	
   501 			lastFloat->setUseOrientation (false);
   502 	}	
   503 	if (!a.value( "href").isEmpty() )
   504 	{
   505 		// Load FloatImage
   506 		if (!lastFloat->load (parseHREF(a.value ("href") ) ))
   507 		{
   508 			QMessageBox::warning( 0, "Warning: " ,
   509 				"Couldn't load float image\n"+parseHREF(a.value ("href") ));
   510 			lastBranch->removeFloatImage(((FloatImageObj*)(lastFloat)));
   511 			lastFloat=NULL;
   512 			return true;
   513 		}
   514 		
   515 	}	
   516 	if (!a.value( "floatExport").isEmpty() ) 
   517 	{
   518 		// Only for compatibility. THis is not used since 1.7.11 
   519 		if (a.value ("floatExport") =="true")
   520 			lastFloat->setFloatExport(true);
   521 		else	
   522 			lastFloat->setFloatExport (false);
   523 	}	
   524 	if (!a.value( "zPlane").isEmpty() ) 
   525 		lastFloat->setZValue (a.value("zPlane").toInt ());
   526     float x,y;
   527     bool okx,oky;
   528 	if (!a.value( "relPosX").isEmpty() ) 
   529 	{
   530 		if (!a.value( "relPosY").isEmpty() ) 
   531 		{
   532 			// read relPos
   533 			x=a.value("relPosX").toFloat (&okx);
   534 			y=a.value("relPosY").toFloat (&oky);
   535 			if (okx && oky) 
   536 				
   537 				{
   538 					lastFloat->setRelPos (QPointF (x,y) );
   539 					// make sure floats in mapcenter are repositioned to relative pos
   540 					if (lastBranch->getDepth()==0) lastBranch->positionContents();
   541 				}
   542 			else
   543 				// Couldn't read relPos
   544 				return false;  
   545 		}           
   546 	}	
   547 	
   548 	if (!readOOAttr(a)) return false;
   549 
   550 	if (!a.value ("orgName").isEmpty() )
   551 	{
   552 		((FloatImageObj*)(lastFloat))->setOriginalFilename (a.value("orgName"));
   553 	}
   554 	return true;
   555 }
   556 
   557 bool parseVYMHandler::readXLinkAttr (const QXmlAttributes& a)
   558 {
   559 	QColor col;
   560 	bool okx;
   561 	bool success=false;
   562 	XLinkObj *xlo=new XLinkObj (model->getScene());
   563 	if (!a.value( "color").isEmpty() ) 
   564 	{
   565 		col.setNamedColor(a.value("color"));
   566 		xlo->setColor (col);
   567 	}
   568 
   569 	if (!a.value( "width").isEmpty() ) 
   570 	{
   571 		xlo->setWidth(a.value ("width").toInt (&okx, 10));
   572 	}
   573 
   574 	// Connecting by select string for compatibility with version < 1.8.76
   575 	if (!a.value( "beginBranch").isEmpty() ) 
   576 	{ 
   577 		if (!a.value( "endBranch").isEmpty() ) 
   578 		{
   579 			LinkableMapObj *lmo=model->findObjBySelect (a.value( "beginBranch"));
   580 			if (lmo && typeid (*lmo)==typeid (BranchObj))
   581 			{
   582 				xlo->setBegin ((BranchObj*)lmo);
   583 				lmo=model->findObjBySelect (a.value( "endBranch"));
   584 				if (lmo && typeid (*lmo)==typeid (BranchObj))
   585 				{
   586 					xlo->setEnd ((BranchObj*)(lmo));
   587 					xlo->activate();
   588 					success=true;
   589 				}
   590 			}
   591 		}           
   592 	}	
   593 
   594 	// object ID is used starting in version 1.8.76
   595 	if (!a.value( "beginID").isEmpty() ) 
   596 	{ 
   597 		if (!a.value( "endID").isEmpty() ) 
   598 		{
   599 			LinkableMapObj *lmo=model->findID (a.value( "beginID"));
   600 			if (lmo && typeid (*lmo)==typeid (BranchObj))
   601 			{
   602 				xlo->setBegin ((BranchObj*)lmo);
   603 				lmo=model->findID (a.value( "endID"));
   604 				if (lmo && typeid (*lmo)==typeid (BranchObj))
   605 				{
   606 					xlo->setEnd ((BranchObj*)(lmo));
   607 					xlo->activate();
   608 					success=true;
   609 				}
   610 			}
   611 		}           
   612 	}	
   613 	if (!success) delete (xlo);
   614 	return true;	// xLinks can only be established at the "end branch", return true
   615 }
   616 
   617 bool parseVYMHandler::readHtmlAttr (const QXmlAttributes& a)
   618 {
   619 	for (int i=1; i<=a.count(); i++)
   620 		htmldata+=" "+a.localName(i-1)+"=\""+a.value(i-1)+"\"";
   621 	return true;
   622 }
   623 
   624 bool parseVYMHandler::readSettingAttr (const QXmlAttributes& a)
   625 {
   626 	if (!a.value( "key").isEmpty() ) 
   627 	{
   628 		if (!a.value( "value").isEmpty() ) 
   629 			settings.setLocalEntry (model->getMapEditor()->getDestPath(), a.value ("key"), a.value ("value"));
   630 		else
   631 			return false;
   632 		
   633 	} else
   634 		return false;
   635 	
   636 	return true;
   637 }