aknlayoutcompiler/src/MLEqCompData2DHuiML.cpp
changeset 0 f58d6ec98e88
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     1 /*
       
     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // disable "identifier was truncated to '255' characters in the browser information" warning
       
    20 #pragma warning (disable:4786)
       
    21 
       
    22 #include "MLEqCompData2DHuiML.h"
       
    23 #include "MLEqCompDataParse.h"
       
    24 #include "LayoutCompilerErr.h"
       
    25 #include "FormulaTree.h"
       
    26 
       
    27 #include <cdlcompilertoolkit/cdltkprocess.h>
       
    28 
       
    29 #include <fstream>
       
    30 #include <iostream>
       
    31 #include <sstream>
       
    32 #include <algorithm>
       
    33 
       
    34 #include "CodeGenConsts.h"
       
    35 
       
    36 
       
    37 using namespace std;
       
    38 
       
    39 typedef LayoutProcessArgsErr<MLEqCompDataToDHuiML> MLEqCompDataToDHuiMLArgsErr;
       
    40 
       
    41 // constants
       
    42 
       
    43 const string KCompDataFileNameSuffix("compData");
       
    44 const string KAttributesFileNameSuffix("attributes");
       
    45 
       
    46 
       
    47 //
       
    48 // class TEqLayoutSaxWriter
       
    49 //
       
    50 
       
    51 
       
    52 class TEqLayoutSaxWriter
       
    53 	{
       
    54 public:
       
    55 	enum 
       
    56 		{
       
    57 		KIndentSize=4
       
    58 		};
       
    59 public:
       
    60 	TEqLayoutSaxWriter(ofstream& aStream);
       
    61     void StartDocument();
       
    62     void EndDocument();
       
    63 	void OpenStartElement(const string& aLocalName);
       
    64 	void CloseStartElement();
       
    65 	void CloseAndEndStartElement();
       
    66 	void EndElement(const string& aLocalName);
       
    67 	void Attribute(const string& aLocalName, const string& aValue);
       
    68 	void Comment(const string& aComment);
       
    69 
       
    70 private:
       
    71 	void Indent();
       
    72 	void IncreaseIndentLevel();
       
    73 	void DecreaseIndentLevel();
       
    74 private:
       
    75 	ofstream& iStream;
       
    76 	int iIndentLevel;
       
    77 	};
       
    78 
       
    79 TEqLayoutSaxWriter::TEqLayoutSaxWriter(ofstream& aStream)
       
    80 	: 
       
    81 	iStream(aStream),
       
    82 	iIndentLevel(0)
       
    83 	{
       
    84 
       
    85 	};
       
    86 
       
    87 void TEqLayoutSaxWriter::StartDocument()
       
    88 	{
       
    89 	Indent();
       
    90 	iStream << string("<xmluiml xmlns=\"http://www.series60.com/xml/xmluiml/1\">") << endl;
       
    91 	IncreaseIndentLevel();
       
    92 	}
       
    93 
       
    94 void TEqLayoutSaxWriter::EndDocument()
       
    95 	{
       
    96 	DecreaseIndentLevel();
       
    97 	Indent();
       
    98 	iStream << string("</xmluiml>") << endl;
       
    99 	}
       
   100 
       
   101 //void TEqLayoutSaxWriter::StartElement(const string& /*namespaceURI*/, const string& localName /*, const string& qName*/ /*, const AttributesT& atts*/)
       
   102 void TEqLayoutSaxWriter::OpenStartElement(const string& aLocalName)
       
   103 	{
       
   104 	Indent();
       
   105 	iStream << "<" << aLocalName;
       
   106 	IncreaseIndentLevel();
       
   107 	}
       
   108 
       
   109 void TEqLayoutSaxWriter::CloseStartElement()
       
   110 	{
       
   111 	iStream << ">" << endl;
       
   112 	}
       
   113 
       
   114 void TEqLayoutSaxWriter::CloseAndEndStartElement()
       
   115 	{
       
   116 	iStream << " />" << endl;
       
   117 	DecreaseIndentLevel();
       
   118 	}
       
   119 
       
   120 void TEqLayoutSaxWriter::EndElement(const string& aLocalName)
       
   121 	{
       
   122 	DecreaseIndentLevel();
       
   123 	Indent();
       
   124 	iStream << "</" << aLocalName << ">" << endl;
       
   125 	}
       
   126 
       
   127 void TEqLayoutSaxWriter::Attribute(const string& aLocalName, const string& aValue)
       
   128 	{
       
   129 	iStream << " " << aLocalName << "=\"" << aValue << "\"";
       
   130 	}
       
   131 
       
   132 void TEqLayoutSaxWriter::Comment(const string& aComment)
       
   133 	{
       
   134 	iStream << "<!--  " << aComment << " -->" << endl;
       
   135 	}
       
   136 
       
   137 void TEqLayoutSaxWriter::Indent()
       
   138 	{
       
   139 	stringstream ss;
       
   140 	int max = iIndentLevel * KIndentSize;
       
   141 	for(int count = 0; count < max; count++)
       
   142 		{
       
   143 		ss << " ";
       
   144 		}
       
   145 	iStream << ss.str();
       
   146 	}
       
   147 
       
   148 void TEqLayoutSaxWriter::IncreaseIndentLevel()
       
   149 	{
       
   150 	if(iIndentLevel > 1000)
       
   151 		throw GeneralErr("TEqLayoutSaxWriter::DecreaseIndentLevel - nesting inconsistency");
       
   152 	iIndentLevel++;
       
   153 	}
       
   154 
       
   155 void TEqLayoutSaxWriter::DecreaseIndentLevel()
       
   156 	{
       
   157 	if(iIndentLevel == 0)
       
   158 		throw GeneralErr("TEqLayoutSaxWriter::DecreaseIndentLevel - nesting inconsistency");
       
   159 	iIndentLevel--;
       
   160 	}
       
   161 
       
   162 
       
   163 
       
   164 // 
       
   165 // MLEqCompDataToDHuiML
       
   166 //
       
   167 
       
   168 int MLEqCompDataToDHuiML::Process(const vector<string>& args)
       
   169 	{
       
   170 	int numExpectedArgs = 5;
       
   171 	int numArgs = args.size();
       
   172 	if(numArgs < numExpectedArgs)
       
   173 		throw MLEqCompDataToDHuiMLArgsErr();
       
   174 	
       
   175     int arg = 2;
       
   176 	string listName = args[arg++];
       
   177 	string compDataName = args[arg++];
       
   178 	string parChildName = args[arg++];
       
   179 	string dhuimlName = args[arg++];
       
   180 
       
   181 	auto_ptr<TMLEqCompDataParseLayout> layoutParse = TMLEqCompDataParseLayout::Parse(listName, compDataName, parChildName);
       
   182 	auto_ptr<TMLEqCompData> layout(layoutParse.get());
       
   183 	layoutParse.release();
       
   184 
       
   185 	TMLEqCompData* theLayout = layout.get();
       
   186 	theLayout->Compile();
       
   187 
       
   188 	cout << "writing dhuiml file " << dhuimlName << endl;
       
   189 	ofstream dhuiml(dhuimlName.c_str());
       
   190 
       
   191 	int KIndent = 4;
       
   192 	TEqLayoutSaxWriter saxWriter(dhuiml);
       
   193 	saxWriter.StartDocument();
       
   194 
       
   195 	stringstream comment1;
       
   196 	comment1 << "Generated from list: " << listName;
       
   197 	saxWriter.Comment(comment1.str());
       
   198 
       
   199 	stringstream comment2;
       
   200 	comment2 << "Generated from component data: " << compDataName;
       
   201 	saxWriter.Comment(comment2.str());
       
   202 
       
   203 	stringstream comment3;
       
   204 	comment3 << "Generated from parent child data: " << parChildName;
       
   205 	saxWriter.Comment(comment3.str());
       
   206 
       
   207 	LayoutTablesToDeclarative(saxWriter, *theLayout);
       
   208     
       
   209 	saxWriter.EndDocument();
       
   210 
       
   211 	return 0;
       
   212 	}
       
   213 
       
   214 void MLEqCompDataToDHuiML::ShowHelp(ostream& stream)
       
   215 	{
       
   216 	stream << "MLEqCompData2DHuiML <MLEqCompListName> <MLEqCompDataName> <MLEqParChildName> <DHuiMLName>" << endl;
       
   217     stream << "  e.g. from \\S60\\AknLayout2\\group run " << endl;
       
   218     stream << "  aknlayoutcompiler MLEqCompData2DHuiML " << endl;
       
   219 	stream << "      ..\\..\\xml_master\\xml\\m_p_30\\m_p_30_list.xml " << endl;
       
   220 	stream << "      ..\\..\\xml_master\\xml\\m_p_30\\m_p_30\\0.161093285736413\\eur_compData.xml " << endl;
       
   221 	stream << "      ..\\..\\xml_master\\xml\\m_p_30\\m_p_30\\0.161093285736413\\eur_parChildRelation.xml " << endl;
       
   222 	stream << "      ..\\generated_declarative\\lct_avkon.dhuiml" << endl;
       
   223 	}
       
   224 
       
   225 void MLEqCompDataToDHuiML::LayoutTablesToDeclarative(TEqLayoutSaxWriter& aSaxWriter, const TMLEqCompData& aLayout)
       
   226 	{
       
   227 	// first the tables are output
       
   228 	for (TMLEqCompData::const_iterator pTab = aLayout.begin(); pTab != aLayout.end(); ++pTab)
       
   229 		{
       
   230 		AddTableToDeclarative(aSaxWriter, **pTab);
       
   231 		}
       
   232 	}
       
   233 
       
   234 void MLEqCompDataToDHuiML::LayoutComponentsToDeclarative(TEqLayoutSaxWriter& aSaxWriter, const TMLEqCompData& aLayout)
       
   235 	{
       
   236 	// then the individual components are output
       
   237 	for (TMLEqCompData::TMLEqCompDataComponents::const_iterator pLine = aLayout.iComponents.begin(); pLine != aLayout.iComponents.end(); ++pLine)
       
   238 		{
       
   239 		// @todo this may be needed if the components are to be written out separately from the tables
       
   240 		}
       
   241 	}
       
   242 
       
   243 
       
   244 const string KDHuiMLLayoutmanager("layoutmanager");
       
   245 const string KDHuiMLLayoutmanagerId("id");
       
   246 const string KDHuiMLLayoutmanagerName("name");
       
   247 const string KDHuiMLOptionSet("optionset");
       
   248 const string KDHuiMLOptionSetId("id");
       
   249 const string KDHuiMLOptionSetOrientationPortrait("portrait");
       
   250 const string KDHuiMLOptionSetOrientationLandscape("landscape");
       
   251 const string KDHuiMLOptionSetOrientationTrue("true");
       
   252 const string KDHuiMLOptionSetOrientationFalse("false");
       
   253 
       
   254 void MLEqCompDataToDHuiML::AddTableToDeclarative(TEqLayoutSaxWriter& aSaxWriter, TMLEqCompDataTable& aTable)
       
   255 	{
       
   256 	if(aTable.size() == 0)
       
   257 		return;
       
   258 	
       
   259 //	<layoutmanager id="1233" name="listscroll_app_pane">
       
   260 //		<optionset id="0" portrait="true" landscape="false">
       
   261 //			<lctcomponent id="1234" name="grid_app_pane">
       
   262 
       
   263 	aSaxWriter.OpenStartElement(KDHuiMLLayoutmanager);
       
   264 	aSaxWriter.Attribute(KDHuiMLLayoutmanagerId, CdlTkUtil::IntToString(aTable.iId));
       
   265 	aSaxWriter.Attribute(KDHuiMLLayoutmanagerName, aTable.iName);
       
   266 	aSaxWriter.CloseStartElement();
       
   267 
       
   268 	// iterate through option sets
       
   269 	for(TMLEqCompDataTable::iterator pOptionSet = aTable.begin(); pOptionSet != aTable.end(); ++pOptionSet)
       
   270 		{
       
   271 		int optionSetId = pOptionSet->first;
       
   272 		TMLEqCompDataTableOptionSet& optionSet = pOptionSet->second;
       
   273 		aSaxWriter.OpenStartElement(KDHuiMLOptionSet);
       
   274 		aSaxWriter.Attribute(KDHuiMLOptionSetId, CdlTkUtil::IntToString(optionSetId));
       
   275 
       
   276 		string isPortrait = (optionSet.iOrientation & EMLEqCompDataOptionSetOrientationPortrait) ? KDHuiMLOptionSetOrientationTrue : KDHuiMLOptionSetOrientationFalse;
       
   277 		aSaxWriter.Attribute(KDHuiMLOptionSetOrientationPortrait, isPortrait);
       
   278 		string isLandscape = (optionSet.iOrientation & EMLEqCompDataOptionSetOrientationLandscape) ? KDHuiMLOptionSetOrientationTrue : KDHuiMLOptionSetOrientationFalse;
       
   279 		aSaxWriter.Attribute(KDHuiMLOptionSetOrientationLandscape, isLandscape);
       
   280 
       
   281 		aSaxWriter.CloseStartElement();
       
   282 
       
   283 		for(TMLEqCompDataTableOptionSet::iterator pLine = optionSet.begin(); pLine != optionSet.end(); ++pLine)
       
   284 			{
       
   285 			AddLineToDeclarative(aSaxWriter, **pLine, optionSetId);
       
   286 			}
       
   287 		aSaxWriter.EndElement(KDHuiMLOptionSet);
       
   288 		}
       
   289 
       
   290 	aSaxWriter.EndElement(KDHuiMLLayoutmanager);
       
   291 	}
       
   292 
       
   293 
       
   294 const string KDHuiMLLCTComponent("lctcomponent");
       
   295 const string KDHuiMLLCTComponentId("id");
       
   296 const string KDHuiMLLCTComponentName("name");
       
   297 const string KDHuiMLAlfLayout("alflayout");
       
   298 const string KDHuiMLAlfLayoutType("type");
       
   299 const string KDHuiMLAlfLayoutTypeAnchor("anchor");
       
   300 
       
   301 void MLEqCompDataToDHuiML::AddLineToDeclarative(TEqLayoutSaxWriter& aSaxWriter, TMLEqCompDataLine& aLine, int aOptionSetId)
       
   302 	{
       
   303 	// beginning of component
       
   304 
       
   305 //		<lctcomponent id="1234" name="grid_app_pane">
       
   306 //			<alflayout type="anchor">
       
   307 
       
   308 	aSaxWriter.OpenStartElement(KDHuiMLLCTComponent);
       
   309 	aSaxWriter.Attribute(KDHuiMLLCTComponentId, CdlTkUtil::IntToString(aLine.iId));
       
   310 	aSaxWriter.Attribute(KDHuiMLLCTComponentName, aLine.iName);
       
   311 	aSaxWriter.CloseStartElement();
       
   312 
       
   313 	aSaxWriter.OpenStartElement(KDHuiMLAlfLayout);
       
   314 	aSaxWriter.Attribute(KDHuiMLAlfLayoutType, KDHuiMLAlfLayoutTypeAnchor);
       
   315 	aSaxWriter.CloseStartElement();
       
   316 
       
   317 	const string* outputOrder =  KEqCompDataPaneOutputOrder;
       
   318 	const int outputSize = KEqCompDataPaneOutputOrderSize;
       
   319 	vector<string> cellOrder(outputOrder, outputOrder + outputSize);
       
   320 
       
   321 	for (vector<string>::iterator pCell = cellOrder.begin(); pCell != cellOrder.end(); ++pCell)
       
   322 		{
       
   323 		string cellName = *pCell;
       
   324 		AddCellToDeclarative(aSaxWriter, aLine[cellName], cellName, aOptionSetId);
       
   325 		}
       
   326 
       
   327 	aSaxWriter.EndElement(KDHuiMLAlfLayout);
       
   328 	aSaxWriter.EndElement(KDHuiMLLCTComponent);
       
   329 	}
       
   330 
       
   331 const string KDHuiMLAnchor("anchor");
       
   332 const string KDHuiMLAnchorOrdinal("ordinal");
       
   333 const string KDHuiMLAnchorType("type");
       
   334 const string KDHuiMLAnchorTypePrefix("EAlfAnchorType"); // not currently used, to save disk space
       
   335 const string KDHuiMLAnchorAttachmentOrigin("attachmentOrigin");
       
   336 const string KDHuiMLAnchorAttachmentOriginPrefix("EAlfAnchorAttachmentOrigin");  // not currently used, to save disk space
       
   337 const string KDHuiMLAnchorAttachmentOrdinal("attachmentOrdinal");
       
   338 const string KDHuiMLAnchorAttachmentOrdinalAttachToParent("P");
       
   339 const string KDHuiMLAnchorOffset("offset");
       
   340 const string KDHuiMLAnchorOffsetMagnitude("magnitude");
       
   341 const string KDHuiMLAnchorOffsetUnit("unit");
       
   342 const string KDHuiMLAnchorOffsetUnitPixel("S60");
       
   343 
       
   344 void MLEqCompDataToDHuiML::AddCellToDeclarative(TEqLayoutSaxWriter& aSaxWriter, TMLEqCompDataValues& aValues, const string& aCellName, int aOptionSetId)
       
   345 	{
       
   346 //				<anchor 
       
   347 //					ordinal="0" // don't need this, as declarative can calculate drawing order at runtime
       
   348 //					type="EAlfAnchorTypeLeft"
       
   349 //					attachmentOrigin="EAlfAnchorAttachmentOriginLeft"
       
   350 //					attachmentOrdinal="EAlfAnchorAttachToParent">
       
   351 //			        <offset 
       
   352 //						magnitude="20"
       
   353 //						unit="EAlfUnitPixel" 
       
   354 //						zoomId = "233" />
       
   355 //					<formula formulaStr=""> // @todo this is temporary whilst equation evaluation is developed
       
   356 //						...
       
   357 //					</formula>
       
   358 //				</anchor>
       
   359 
       
   360 	bool validCell(false);
       
   361 	TMLEqCompDataFormula* formula = NULL;
       
   362 	TMLEqCompDataValuesOptionSet& optionSet = aValues.iOptionSets[aOptionSetId];
       
   363 	// always assume it's the first and only forumla
       
   364 	if(optionSet.size() > 0)
       
   365 		{
       
   366 		formula = &(optionSet[0]);
       
   367 		if(!formula->iFormulaString.empty())
       
   368 			{
       
   369 			validCell = true;
       
   370 			}
       
   371 		}
       
   372 
       
   373 	if(!validCell)
       
   374 		return;
       
   375 
       
   376 	aSaxWriter.OpenStartElement(KDHuiMLAnchor);
       
   377 
       
   378 //		aSaxWriter.Attribute(KDHuiMLAnchorOrdinal, 0); // don't need this, as declarative can calculate drawing order at runtime
       
   379 
       
   380 	string anchorType = aCellName;
       
   381 	ConvertPositionValueStr(anchorType);
       
   382 	aSaxWriter.Attribute(KDHuiMLAnchorType, anchorType); 
       
   383 
       
   384 	// @todo for now, always attach to the same side, but need to calculate this for e.g. orthogonal anchors
       
   385 	aSaxWriter.Attribute(KDHuiMLAnchorAttachmentOrigin, anchorType);
       
   386 
       
   387 	aSaxWriter.Attribute(KDHuiMLAnchorAttachmentOrdinal, KDHuiMLAnchorAttachmentOrdinalAttachToParent);
       
   388 	
       
   389 	aSaxWriter.CloseStartElement();
       
   390 
       
   391 		{
       
   392 		aSaxWriter.OpenStartElement(KDHuiMLAnchorOffset);
       
   393 		aSaxWriter.Attribute(KDHuiMLAnchorOffsetMagnitude, "0"); // @todo, replace with value in units!
       
   394 		aSaxWriter.Attribute(KDHuiMLAnchorOffsetUnit, KDHuiMLAnchorOffsetUnitPixel); // @todo, replace with s60 units when supported
       
   395 		aSaxWriter.CloseAndEndStartElement();
       
   396 		}
       
   397 
       
   398 	AddFormulaToDeclarative(aSaxWriter, *formula);
       
   399 	
       
   400 	aSaxWriter.EndElement(KDHuiMLAnchor);
       
   401 	}
       
   402 
       
   403 
       
   404 //
       
   405 // this is all temporary, to illustrate equation parsing
       
   406 //
       
   407 
       
   408 
       
   409 const string KDHuiMLAnchorFormula("formula");
       
   410 const string KDHuiMLAnchorFormulaString("formulastr");
       
   411 const string KDHuiMLAnchorFormulaNode("node");
       
   412 const string KDHuiMLAnchorFormulaNodeType("type");
       
   413 const string KDHuiMLAnchorFormulaNodeValue("value");
       
   414 
       
   415 
       
   416 void Print(TEqLayoutSaxWriter& aSaxWriter, const FormulaTreeNode& aNode)
       
   417 	{
       
   418 	aSaxWriter.OpenStartElement(KDHuiMLAnchorFormulaNode);
       
   419 	stringstream ss;
       
   420 
       
   421 	switch (aNode.Type())
       
   422 		{
       
   423 		case FormulaTreeNode::EReal:		// Double() = the number
       
   424 			ss << aNode.Real();
       
   425 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "real");
       
   426 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   427 			aSaxWriter.CloseStartElement();
       
   428 			break;
       
   429 		case FormulaTreeNode::EInt:			// Int() = the number
       
   430 			ss << aNode.Int();
       
   431 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "int");
       
   432 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   433 			aSaxWriter.CloseStartElement();
       
   434 			break;
       
   435 		case FormulaTreeNode::ECell:			// Char() = cell name
       
   436 			ss << aNode.Char();
       
   437 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "cell");
       
   438 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   439 			aSaxWriter.CloseStartElement();
       
   440 			break;
       
   441 		case FormulaTreeNode::EParent:		// nothing special
       
   442 			ss << aNode.Char();
       
   443 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "parent");
       
   444 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   445 			aSaxWriter.CloseStartElement();
       
   446 			break;
       
   447 		case FormulaTreeNode::EParentCell:	// Char() = parent cell name
       
   448 			ss << aNode.Char();
       
   449 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "parent_cell");
       
   450 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   451 			aSaxWriter.CloseStartElement();
       
   452 			break;
       
   453 		case FormulaTreeNode::ETableCell:		// Double() = target table
       
   454 			ss << aNode.Real();
       
   455 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "table_cell");
       
   456 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   457 			aSaxWriter.CloseStartElement();
       
   458 			break;
       
   459 		case FormulaTreeNode::EComponent:		// Double() = component id, [0] = cell name
       
   460 			ss << aNode.Real();
       
   461 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "component");
       
   462 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   463 			aSaxWriter.CloseStartElement();
       
   464 			Print(aSaxWriter, aNode[0]);
       
   465 			break;
       
   466 		case FormulaTreeNode::EAbsolute:		// Text() = whole thing, [0], [1] = real components, [2] = cell name
       
   467 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "absolute_cell_ref");
       
   468 //			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   469 			aSaxWriter.CloseStartElement();
       
   470 			Print(aSaxWriter, aNode[0]);
       
   471 			Print(aSaxWriter, aNode[1]);
       
   472 			Print(aSaxWriter, aNode[2]);
       
   473 			break;
       
   474 		case FormulaTreeNode::EUnits:			// Double() = units
       
   475 			ss << aNode.Real();
       
   476 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "units");
       
   477 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   478 			aSaxWriter.CloseStartElement();
       
   479 			break;
       
   480 		case FormulaTreeNode::EConstant:		// Double() = constant
       
   481 			ss << aNode.Real();
       
   482 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "constant");
       
   483 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   484 			aSaxWriter.CloseStartElement();
       
   485 			break;
       
   486 		case FormulaTreeNode::EAttribute:		// Int() = attribute
       
   487 			ss << aNode.Int();
       
   488 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "attribute");
       
   489 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   490 			aSaxWriter.CloseStartElement();
       
   491 			break;
       
   492 		case FormulaTreeNode::EMystery:		// Text() = whole thing, [0], [1] = int components
       
   493 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "mystery");
       
   494 //			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   495 			aSaxWriter.CloseStartElement();
       
   496 			Print(aSaxWriter, aNode[0]);
       
   497 			Print(aSaxWriter, aNode[1]);
       
   498 			break;
       
   499 		case FormulaTreeNode::EFunction:		// Text() = function name, [0] = parameter
       
   500 			ss << aNode.Text();
       
   501 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "function");
       
   502 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   503 			aSaxWriter.CloseStartElement();
       
   504 			Print(aSaxWriter, aNode[0]);
       
   505 			break;
       
   506 		case FormulaTreeNode::EArithmetic:	// Char() = arithmetic operator, [0], [1] = sub expressions
       
   507 			ss << aNode.Char();
       
   508 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "arithmetic");
       
   509 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   510 			aSaxWriter.CloseStartElement();
       
   511 			Print(aSaxWriter, aNode[0]);
       
   512 			Print(aSaxWriter, aNode[1]);
       
   513 			break;
       
   514 		case FormulaTreeNode::ECondition:		// Text() = comparison operator, [0], [1] = sub expressions
       
   515 			ss << aNode.Text();
       
   516 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "condition");
       
   517 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   518 			aSaxWriter.CloseStartElement();
       
   519 			Print(aSaxWriter, aNode[0]);
       
   520 			Print(aSaxWriter, aNode[1]);
       
   521 			break;
       
   522 		case FormulaTreeNode::EConditional:	// no content, [0] = condition, [1] = then expression, [2] = else expression
       
   523 			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeType, "if_then_else");
       
   524 //			aSaxWriter.Attribute(KDHuiMLAnchorFormulaNodeValue, ss.str());
       
   525 			aSaxWriter.CloseStartElement();
       
   526 			Print(aSaxWriter, aNode[0]);
       
   527 			Print(aSaxWriter, aNode[1]);
       
   528 			Print(aSaxWriter, aNode[2]);
       
   529 			break;
       
   530 		}
       
   531 	aSaxWriter.EndElement(KDHuiMLAnchorFormulaNode);
       
   532 	}
       
   533 
       
   534 
       
   535 void MLEqCompDataToDHuiML::AddFormulaToDeclarative(TEqLayoutSaxWriter& aSaxWriter, const TMLEqCompDataFormula& aFormula)
       
   536 	{
       
   537 //		<formula formulaStr=""> // @todo this is temporary whilst equation evaluation is developed
       
   538 //			<node type="123" value="456"/>
       
   539 //		</formula>		
       
   540 	aSaxWriter.OpenStartElement(KDHuiMLAnchorFormula);
       
   541 	aSaxWriter.Attribute(KDHuiMLAnchorFormulaString, aFormula.iFormulaString); // @todo, replace with expanded formula xml
       
   542 	aSaxWriter.CloseStartElement();
       
   543 
       
   544 	if(aFormula.iFormulaTree)
       
   545 		{
       
   546 		Print(aSaxWriter, *(aFormula.iFormulaTree));
       
   547 		}
       
   548 
       
   549 	aSaxWriter.EndElement(KDHuiMLAnchorFormula);
       
   550 	}
       
   551 
       
   552 extern const string KEqCompDataKeywordParamLeft;
       
   553 extern const string KEqCompDataKeywordParamTop;
       
   554 extern const string KEqCompDataKeywordParamRight;
       
   555 extern const string KEqCompDataKeywordParamBottom;
       
   556 extern const string KEqCompDataKeywordParamWidth;
       
   557 extern const string KEqCompDataKeywordParamHeight;
       
   558 
       
   559 const string KDHuiMLAnchorLeft("left");
       
   560 const string KDHuiMLAnchorTop("top");
       
   561 const string KDHuiMLAnchorRight("right");
       
   562 const string KDHuiMLAnchorBottom("bottom");
       
   563 const string KDHuiMLAnchorWidth("width");
       
   564 const string KDHuiMLAnchorHeight("height");
       
   565 
       
   566 void MLEqCompDataToDHuiML::ConvertPositionValueStr(std::string& aValueStr)
       
   567 	{
       
   568 	if(aValueStr == KEqCompDataKeywordParamLeft) 
       
   569 		aValueStr = KDHuiMLAnchorLeft;
       
   570 	else if(aValueStr == KEqCompDataKeywordParamTop) 
       
   571 		aValueStr = KDHuiMLAnchorTop;
       
   572 	else if(aValueStr == KEqCompDataKeywordParamRight) 
       
   573 		aValueStr = KDHuiMLAnchorRight;
       
   574 	else if(aValueStr == KEqCompDataKeywordParamBottom) 
       
   575 		aValueStr = KDHuiMLAnchorBottom;
       
   576 	else if(aValueStr == KEqCompDataKeywordParamWidth) 
       
   577 		aValueStr = KDHuiMLAnchorWidth;
       
   578 	else if(aValueStr == KEqCompDataKeywordParamHeight) 
       
   579 		aValueStr = KDHuiMLAnchorHeight;
       
   580 	else
       
   581 		aValueStr = KDHuiMLAnchorLeft;
       
   582 		}
       
   583 
       
   584 
       
   585 // end of file