internal static CGwGraph New(string aCode, CPoint aScreenSize, Action <string> aDebugPrint)
{
aCode = aCode.Replace(Environment.NewLine, " ");
var aNodes = new List <CGwNode>();
var aEdges = new List <CGwEdge>();
var aParser = new CParser(aCode);
aParser.SkipWhitespace();
aParser.Expect("digraph");
aParser.SkipWhitespace();
var aDiagramName = aParser.ReadIdentifier();
aParser.SkipWhitespace();
aParser.Expect("{");
aParser.SkipWhitespace();
aParser.Expect("graph");
aParser.SkipWhitespace();
aParser.Expect("[");
var aGraphAttributes = aParser.ReadAttributes();
var aCoords = aGraphAttributes["bb"].Trim();
var aToks = aCoords.Split(',').ToArray();
var aDiagX = aParser.ParseDouble(aToks[0]);
var aDiagY = aParser.ParseDouble(aToks[1]);
var aDiagDx1 = aParser.ParseDouble(aToks[2]);
var aDiagDy1 = aParser.ParseDouble(aToks[3]);
///////////////////////////////////////////////
/// Klein, kein problem beim skalierungswechsel (sollte der zuletzt eingecheckte stand sein)
var aDiagSize1 = new CPoint(aDiagDx1, aDiagDy1);
var aDiagSize = CPoint.GetSizeOfPreservedRatioScale(new CPoint(aDiagDx1, aDiagDy1), aScreenSize);
var aScale = 1.0d;
var aScale1 = aDiagSize1 / aDiagSize;
var aTranslate = (aScreenSize - aDiagSize * aScale1) / new CPoint(2.0d);
var aTranslateX = aTranslate.x;
var aTranslateY = aTranslate.y;
var aImportDx = new Func <double, double>(c => c * aScale);
var aImportDy = new Func <double, double>(c => c * aScale);
var aImportX = new Func <double, double>(c => c * aScale + aTranslateX);
var aImportY = new Func <double, double>(c => c * aScale + aTranslateY);
var aDiagDx = aScreenSize.x;
var aDiagDy = aScreenSize.y;
///////////////////////////////////////////////
// gross, problem beim skalierungswechsel,
//var aDiagSize = CPoint.GetSizeOfPreservedRatioScale(new CPoint(aDiagDx1, aDiagDy1), aScreenSize);
//var aScale = aDiagDx1 / aDiagSize.x;
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> DiagDx1=" + aDiagDx1);
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> DiagDy1=" + aDiagDy1);
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> Scale=" + aScale);
//var aTranslate = (aScreenSize - aDiagSize) / new CPoint(2.0d);
//var aTranslateX = aTranslate.x;
//var aTranslateY = aTranslate.y;
//var aImportDx = new Func<double, double>(c => c * aScale);
//var aImportDy = new Func<double, double>(c => c * aScale);
//var aImportX = new Func<double, double>(c => c * aScale + aTranslateX);
//var aImportY = new Func<double, double>(c => c * aScale + aTranslateY);
//var aDiagDx = aScreenSize.x;
//var aDiagDy = aScreenSize.y;
///////////////////////////////////////////////
// Noch probieren:
//var aDiagSize = CPoint.GetSizeOfPreservedRatioScale(new CPoint(aDiagDx1, aDiagDy1), aScreenSize);
//var aScale = aDiagDx1 / aDiagSize;
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> DiagDx1=" + aDiagDx1);
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> DiagDy1=" + aDiagDy1);
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> Scale=" + aScale);
//var aTranslate = (aScreenSize - aDiagSize) / new CPoint(2.0d);
//var aTranslateX = aTranslate.x;
//var aTranslateY = aTranslate.y;
//var aImportDx = new Func<double, double>(c => c * aScale.x);
//var aImportDy = new Func<double, double>(c => c * aScale.y);
//var aImportX = new Func<double, double>(c => c * aScale.x + aTranslateX);
//var aImportY = new Func<double, double>(c => c * aScale.y + aTranslateY);
//var aDiagDx = aScreenSize.x;
//var aDiagDy = aScreenSize.y;
///////////////////////////////////////////////
/// Gross, gut aber probleme beim skalierungswechswel:
//var aDiagSize1 = new CPoint(aDiagDx1, aDiagDy1);
//var aDiagSize = CPoint.GetSizeOfPreservedRatioScale(aScreenSize, new CPoint(aDiagDx1, aDiagDy1));
//var aScale = aDiagSize / aDiagSize1;
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> DiagDx1=" + aDiagDx1);
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> DiagDy1=" + aDiagDy1);
//aDebugPrint(">>>>>>>>>>>>>>>>>>>>> Scale=" + aScale);
//var aTranslate = (aScreenSize - aDiagSize) / new CPoint(2.0d);
//var aTranslateX = aTranslate.x;
//var aTranslateY = aTranslate.y;
//var aImportDx = new Func<double, double>(c => c * aScale.x);
//var aImportDy = new Func<double, double>(c => c * aScale.y);
//var aImportX = new Func<double, double>(c => c * aScale.x + aTranslateX);
//var aImportY = new Func<double, double>(c => c * aScale.y + aTranslateY);
//var aDiagDx = aScreenSize.x;
//var aDiagDy = aScreenSize.y;
///////////////////////////////////////////////
aParser.SkipWhitespace();
aParser.Expect("]");
aParser.SkipWhitespace();
aParser.Expect(";");
aParser.SkipWhitespace();
while (aParser.Char != '}')
{
aParser.SkipWhitespace();
var aNodeName1 = aParser.ReadIdentifier();
aParser.SkipWhitespace();
var aIsEdge = aParser.Is("->");
if (aIsEdge)
{
aParser.Expect("->");
aParser.SkipWhitespace();
var aTargetNodeName = aParser.ReadIdentifier();
aParser.SkipWhitespace();
aParser.Expect("[");
var aAttributes = aParser.ReadAttributes();
var aPos = aAttributes["pos"]
.Replace("\\ ", ""); // TODO ?!
var aPosParser = new CParser(aPos);
aPosParser.Expect("e,");
var aSplines = new List <CPoint>();
while (!aPosParser.IsEof)
{
var aX = aImportX(aPosParser.ParseDouble(aPosParser.ReadValue()));
aPosParser.Expect(",");
var aY = aDiagDy - aImportY(aPosParser.ParseDouble(aPosParser.ReadValue()));
var aPoint = new CPoint(aX, aY);
aSplines.Add(aPoint);
aPosParser.SkipWhitespace();
}
var aColor = GetColor(aAttributes, "color");
aParser.SkipWhitespace();
aParser.Expect("]");
aParser.SkipWhitespace();
aParser.Expect(";");
aParser.SkipWhitespace();
var aEdge = new CGwEdge(aNodeName1, aTargetNodeName, aSplines, aColor);
aEdges.Add(aEdge);
}
else
{
var aNodeName = aNodeName1;
aParser.SkipWhitespace();
aParser.Expect("[");
aParser.SkipWhitespace();
var aNodeAttributes = aParser.ReadAttributes();
aParser.SkipWhitespace();
aParser.Expect("]");
aParser.SkipWhitespace();
aParser.Expect(";");
if (aNodeAttributes.ContainsKey("pos"))
{
var aPos = aNodeAttributes["pos"];
var aXy = aPos.Split(',');
var aXText = aXy[0];
var aYText = aXy[1];
var aX = aImportX(aParser.ParseDouble(aXText));
var aY = aDiagDy - aImportY(aParser.ParseDouble(aYText));
var aDx = aImportDx(InchesToPixels(aParser.ParseDouble(aNodeAttributes["width"])));
var aDy = aImportDy(InchesToPixels(aParser.ParseDouble(aNodeAttributes["height"])));
var aShape = aNodeAttributes["shape"];
var aColor = GetColor(aNodeAttributes, "color");
var aFontColor = GetColor(aNodeAttributes, "fontcolor");
var aGwNode = new CGwNode(aNodeName, aX, aY, aDx, aDy, aShape);
aGwNode.Color = aColor;
aGwNode.FontColor = aFontColor;
aNodes.Add(aGwNode);
}
}
aParser.SkipWhitespace();
}
aParser.SkipWhitespace();
aParser.Expect("}");
aParser.SkipWhitespace();
aParser.ExpectEndOfFile();
var aGwGraph = new CGwGraph(aNodes.ToArray(),
aEdges.ToArray(),
new CPoint(aDiagDx, aDiagDy)
);
return(aGwGraph);
}
