private bool ReadProperties(System.Xml.XmlReader reader,
object component, int depth)
{
Type componentType = component.GetType();
while (reader.Read())
{
if (reader.Depth != depth)
return true;
string propertyName = reader.Name;
if (_propertyMap.Contains(propertyName))
propertyName = _propertyMap[propertyName] as string;
PropertyInfo info = componentType.GetProperty(propertyName,
BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.SetProperty);
if (info != null && info.CanWrite)
{
Type type = info.PropertyType;
if (type.Equals(typeof(Color)))
{
if(reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
info.SetValue(component,
XmlConvert.ToColor(reader.Value), null);
// Read the closing tag
reader.Read();
}
else if (type.Equals(typeof(Font)))
{
if(reader.IsEmptyElement)
continue;
Font f = ReadFontElement(reader);
info.SetValue(component, f, null);
}
else if (type.Equals(typeof(StringFormat)))
{
string sal = reader.GetAttribute("Alignment");
string lal = reader.GetAttribute("LineAlignment");
StringAlignment sa = (StringAlignment)XmlConvert.ToEnum(
typeof(StringAlignment), sal);
StringAlignment la = (StringAlignment)XmlConvert.ToEnum(
typeof(StringAlignment), lal);
StringFormat sf = new StringFormat();
sf.Alignment = sa;
sf.LineAlignment = la;
info.SetValue(component, sf, null);
}
else if (type.IsEnum)
{
if(reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
object o = XmlConvert.ToEnum(type, reader.Value);
if (o != null)
info.SetValue(component, o, null);
// Read the closing element
reader.Read();
}
else if (type.Equals(typeof(Image)))
{
if(reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
Image img = _version >= 4 ? XmlConvert.ToImageV4(reader.Value) :
XmlConvert.ToImage(reader.Value);
info.SetValue(component, img, null);
// Read the closing tag
reader.Read();
}
else if (type.Equals(typeof(bool)))
{
if(reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
bool b = XmlConvert.ToBoolean(reader.Value.ToLower());
info.SetValue(component, b, null);
// Read the closing tag
reader.Read();
}
else if (type.Equals(typeof(Single)))
{
if(reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
Single s = XmlConvert.ToSingle(reader.Value);
info.SetValue(component, s, null);
// Read the closing tag
reader.Read();
}
else if (type.Equals(typeof(string)))
{
if(reader.IsEmptyElement)
{
info.SetValue(component, "", null);
continue;
}
// Read the value
reader.Read();
info.SetValue(component, reader.Value, null);
// Read the closing tag
if(reader.NodeType != XmlNodeType.EndElement)
reader.Read();
}
else if (type.Equals(typeof(Int16)))
{
if(reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
Int16 val = XmlConvert.ToInt16(reader.Value);
info.SetValue(component, val, null);
// Read the closing tag
reader.Read();
}
else if (type.Equals(typeof(Int32)))
{
if(reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
Int32 i = XmlConvert.ToInt32(reader.Value);
info.SetValue(component, i, null);
// Read the closing tag
reader.Read();
}
else if (type.Equals(typeof(Int64)))
{
if (reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
Int64 i = XmlConvert.ToInt64(reader.Value);
info.SetValue(component, i, null);
// Read the closing tag
reader.Read();
}
else if (type.Equals(typeof(ShapeTemplate)))
{
if (reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
ShapeTemplate shape = ShapeTemplate.FromId(reader.Value);
info.SetValue(component, shape, null);
// Read the closing tag
reader.Read();
}
else if (type.Equals(typeof(RectangleF)))
{
float l, t, r, b;
l = XmlConvert.ToSingle(reader.GetAttribute("Left"));
t = XmlConvert.ToSingle(reader.GetAttribute("Top"));
r = XmlConvert.ToSingle(reader.GetAttribute("Right"));
b = XmlConvert.ToSingle(reader.GetAttribute("Bottom"));
info.SetValue(component, new RectangleF(l, t, r - l, b - t), null);
}
else if (type.Equals(typeof(AnchorPattern)))
{
AnchorPattern pattern = ReadAnchorPatternElement(reader);
if (pattern != null)
info.SetValue(component, pattern, null);
}
else if (type.Equals(typeof(NodeConstraints)))
{
ReadNodeConstraints(reader, component as Node);
}
else
{
if (reader.IsEmptyElement)
continue;
// Read the value
reader.Read();
if (info.Name == "Tag")
{
bool readThis =
component.GetType().Equals(typeof(Box)) ||
component.GetType().Equals(typeof(Table)) ||
component.GetType().Equals(typeof(ControlHost)) ||
component.GetType().Equals(typeof(Arrow)) ||
component.GetType().Equals(typeof(AnchorPoint)) ||
component.GetType().Equals(typeof(FlowChart)) ||
component.GetType().Equals(typeof(Table.Cell));
if (_options.CustomTagSerialization)
{
// Read the tag
if (DeserializeTag != null)
{
if (readThis)
{
SerializeTagArgs args = new SerializeTagArgs(
component, null, reader);
DeserializeTag(this, args);
}
}
}
else
{
// Read the tag
if (DeserializeTag != null)
{
if (readThis)
{
SerializeTagArgs args = new SerializeTagArgs(
component);
args.Representation = reader.Value;
DeserializeTag(this, args);
// read the closing tag
reader.Read();
}
}
}
}
}
}
else
{
if (!reader.IsEmptyElement)
{
int d = reader.Depth;
while (true)
{
reader.Read();
if(d == reader.Depth)
break;
}
}
}
}
return false;
}
public void Read(System.Xml.XmlReader reader)
{
// Disable auto-routing for a while
_diagram.DontRouteForAwhile = true;
_diagram.ClearAll();
// Read while <Diagram> reached
while (reader.Read())
if (reader.Name == "Diagram")
break;
if (reader.Name != "Diagram")
throw new InvalidFormatException("Invalid FlowChart document");
// Check version
_version = 1;
if (reader.HasAttributes)
_version = XmlConvert.ToInt32(reader.GetAttribute("Version"));
// Read the brushes
SortedList brushes = new SortedList();
Brush brush;
int count;
int i;
int id = 0;
string type;
int d;
ReadMandatory(reader, "Brushes",
"Brushes element missing or invalid");
count = XmlConvert.ToInt32(
reader.GetAttribute("Count"));
for(i = 0; i < count; i++)
{
ReadMandatory(reader, "Brush",
"Unrecognized brush token");
id = XmlConvert.ToInt32(
reader.GetAttribute("Id"));
type = reader.GetAttribute("Type");
brush = null;
switch(type)
{
case "Solid":
{
d = reader.Depth;
string name;
while(true)
{
// Read element
reader.Read();
if(reader.Depth == d)
break;
name = reader.Name;
// Read the value
reader.Read();
if(name == "Color")
{
Color c = XmlConvert.ToColor(reader.Value);
brush = new FlowChartX.SolidBrush(c);
}
// Read the closing element
reader.Read();
}
}
break;
case "Gradient":
{
d = reader.Depth;
float angle = 0;
Blend blend = null;
Color c1 = Color.Black, c2 = Color.White;
ColorBlend cblend = null;
while(true)
{
// Read element
reader.Read();
if(reader.Depth == d)
break;
switch (reader.Name)
{
case "Angle":
// Read the value
reader.Read();
angle = XmlConvert.ToSingle(reader.Value);
break;
case "Blend":
{
// Read positions
reader.Read();
float[] pos = ReadFloatArrayElement(reader);
// Read factors
reader.Read();
float[] fac = ReadFloatArrayElement(reader);
if(pos.Length != fac.Length)
throw new InvalidFormatException(
"Factors and positions in a gradient brush " +
"have different lengths");
blend = new Blend();
blend.Positions = pos;
blend.Factors = fac;
}
break;
case "Color1":
// Read the value
reader.Read();
c1 = XmlConvert.ToColor(reader.Value);
break;
case "Color2":
// Read the value
reader.Read();
c2 = XmlConvert.ToColor(reader.Value);
break;
case "ColorBlend":
{
// Read positions
reader.Read();
float[] pos = ReadFloatArrayElement(reader);
// Read colors
reader.Read();
Color[] colors = ReadColorArrayElement(reader);
cblend = new ColorBlend();
cblend.Positions = pos;
cblend.Colors = colors;
}
break;
}
// Read the closing element
reader.Read();
}
brush = new FlowChartX.LinearGradientBrush(c1, c2);
((LinearGradientBrush)brush).Angle = angle;
((LinearGradientBrush)brush).Blend = blend;
((LinearGradientBrush)brush).InterpolationColor = cblend;
}
break;
case "Texture":
{
d = reader.Depth;
string name;
WrapMode wm = WrapMode.Tile;
Image img = null;
while(true)
{
// Read element
reader.Read();
if(reader.Depth == d)
break;
name = reader.Name;
// Read the value
reader.Read();
switch(name)
{
case "WrapMode":
wm = (WrapMode)XmlConvert.ToEnum(
typeof(WrapMode), reader.Value);
break;
case "Image":
img = _version >= 4 ? XmlConvert.ToImageV4(reader.Value) :
XmlConvert.ToImage(reader.Value);
break;
}
// Read the closing element
reader.Read();
if (img != null)
brush = new FlowChartX.TextureBrush(img, wm);
}
}
break;
case "Hatch":
{
d = reader.Depth;
string name;
Color fore = Color.Black, back = Color.White;
HatchStyle style = HatchStyle.ForwardDiagonal;
while(true)
{
// Read element
reader.Read();
if(reader.Depth == d)
break;
name = reader.Name;
// Read the value
reader.Read();
switch(name)
{
case "ForeColor":
fore = XmlConvert.ToColor(reader.Value);
break;
case "BackColor":
back = XmlConvert.ToColor(reader.Value);
break;
case "Style":
style = (HatchStyle)XmlConvert.ToEnum(
typeof(HatchStyle), reader.Value);
break;
}
// Read the closing element
reader.Read();
brush = new FlowChartX.HatchBrush(
style, fore, back);
}
}
break;
}
if(!brushes.Contains(id) && brush != null)
brushes.Add(id, brush);
}
// Read the brushes closing element
if(count > 0)
reader.Read();
ReadMandatory(reader, "Environment",
"Environment element missing or invalid");
// Read all appearance properties
ReadMandatory(reader, "Appearance",
"Appearance element missing or invalid");
if(!ReadProperties(reader, _diagram, reader.Depth + 1))
throw new InvalidFormatException("Unexpected " +
"EOF in the Appearance section");
// Read all bahaviour properties
ReadMandatory(reader, "Behaviour",
"Behaviour element missing or invalid");
if(!ReadProperties(reader, _diagram, reader.Depth + 1))
throw new InvalidFormatException("Unexpected " +
"EOF in the Behaviour section");
// Read all default properties
ReadMandatory(reader, "Defaults",
"Defaults element missing or invalid");
if(!ReadProperties(reader, _diagram, reader.Depth + 1))
throw new InvalidFormatException("Unexpected " +
"EOF in the Defaults section");
// Read default brushes and pens
ReadMandatory(reader, "DefaultsGDI",
"DefaultsGDI element missing or invalid");
d = reader.Depth;
while(true)
{
// Read starting tag
reader.Read();
if(reader.Depth == d)
break;
switch (reader.Name)
{
case "BoxBrush":
id = XmlConvert.ToInt32(
reader.GetAttribute("Id"));
_diagram.BoxBrush = (FlowChartX.Brush)brushes[id];
break;
case "TableBrush":
id = XmlConvert.ToInt32(
reader.GetAttribute("Id"));
_diagram.TableBrush = (FlowChartX.Brush)brushes[id];
break;
/*
case "TableCaptionBackBrush":
id = XmlConvert.ToInt32(
reader.GetAttribute("Id"));
_diagram.TableCaptionBackBrush = (FlowChartX.Brush)brushes[id];
break;
*/
case "ArrowBrush":
id = XmlConvert.ToInt32(
reader.GetAttribute("Id"));
_diagram.ArrowBrush = (FlowChartX.Brush)brushes[id];
break;
case "BackBrush":
id = XmlConvert.ToInt32(
reader.GetAttribute("Id"));
_diagram.BackBrush = (FlowChartX.Brush)brushes[id];
break;
case "ExteriorBrush":
id = XmlConvert.ToInt32(
reader.GetAttribute("Id"));
if (id == -1)
_diagram.ExteriorBrush = null;
else
_diagram.ExteriorBrush = (FlowChartX.Brush)brushes[id];
break;
case "BoxPen":
_diagram.BoxPen.Brush = null; // force release
_diagram.BoxPen = (FlowChartX.Pen)
ReadPenElement(reader, brushes);
break;
case "TablePen":
_diagram.TablePen.Brush = null; // force release
_diagram.TablePen = (FlowChartX.Pen)
ReadPenElement(reader, brushes);
break;
case "ArrowPen":
_diagram.ArrowPen.Brush = null; // force release
_diagram.ArrowPen = (FlowChartX.Pen)
ReadPenElement(reader, brushes);
break;
}
}
// Read all grid properties
ReadMandatory(reader, "Grid",
"Grid element missing or invalid");
if(!ReadProperties(reader, _diagram, reader.Depth + 1))
throw new InvalidFormatException("Unexpected " +
"EOF in the Grid section");
// Read all layout properties
ReadMandatory(reader, "Layout",
"Layout element missing or invalid");
if(!ReadProperties(reader, _diagram, reader.Depth + 1))
throw new InvalidFormatException("Unexpected " +
"EOF in the Layout section");
// Read all miscellaneous properties
ReadMandatory(reader, "Miscellaneous",
"Miscellaneous element missing or invalid");
if(!ReadProperties(reader, _diagram, reader.Depth + 1))
throw new InvalidFormatException("Unexpected " +
"EOF in the Miscellaneous section");
// Read the Environment closing element
reader.Read();
// Proceed to diagram objects //
Box b;
ControlHost h;
Arrow a;
Table t;
Group g;
object from, to;
PointCollection points = new PointCollection(0);
int idFrom, idTo, idArrow;
int rowFrom, rowTo;
int row, col;
SortedList objects = new SortedList();
SortedList zOrder = new SortedList();
SortedList controlZOrder = new SortedList();
int zIndex;
id = 0;
// Read boxes info
ReadMandatory(reader, "Boxes",
"Boxes element missing or invalid");
count = XmlConvert.ToInt32(reader.GetAttribute("Count"));
int brushId = -1;
FlowChartX.Pen pen = null;
FlowChartX.Pen headPen = null;
for(i = 0; i < count; i++)
{
// Read the starting element
ReadMandatory(reader, "Box",
"Unrecognized box token");
id = XmlConvert.ToInt32(reader.GetAttribute("Id"));
zIndex = XmlConvert.ToInt32(reader.GetAttribute("ZIndex"));
b = _diagram.CreateBox(0, 0, 1, 1);
objects.Add(id, b);
zOrder.Add(zIndex, b);
// Read the shape
string shape;
reader.Read();
if(!reader.IsEmptyElement)
{
reader.Read();
shape = reader.Value;
reader.Read();
}
else
{
shape = "Rectangle";
}
BoxStyle style = BoxStyle.Rectangle;
switch(shape)
{
case "RoundRectangle":
style = BoxStyle.RoundedRectangle;
break;
default:
// Assume it is a complex shape
style = BoxStyle.Shape;
break;
}
b.Style = style;
if(style == BoxStyle.Shape)
b.Shape = ShapeTemplate.FromId(shape);
// Read brush
reader.Read();
if (reader.GetAttribute("Id") != null)
brushId = XmlConvert.ToInt32(reader.GetAttribute("Id"));
else
brushId = -1;
// Read the pen
reader.Read();
pen = ReadPenElement(reader, brushes);
if(!ReadProperties(reader, b, reader.Depth))
throw new InvalidFormatException(
"Unexpected EOF while parsing box info. Box: " +
i.ToString());
// Set brush and pen
if(brushId != -1)
b.Brush = (FlowChartX.Brush)brushes[brushId];
if(pen != null)
b.Pen = pen;
}
// Read boxes closing element
if(count > 0)
reader.Read();
// Read control hosts
if (_version >= 3)
{
string assemblyName;
string typeName;
ReadMandatory(reader, "ControlHosts",
"ControlHosts element missing or invalid");
count = XmlConvert.ToInt32(reader.GetAttribute("Count"));
for (i = 0; i < count; i++)
{
// Read the host element
ReadMandatory(reader, "Host",
"Host element missing or invalid");
id = XmlConvert.ToInt32(reader.GetAttribute("Id"));
zIndex = XmlConvert.ToInt32(reader.GetAttribute("ZIndex"));
assemblyName = reader.GetAttribute("ControlAssembly");
typeName = reader.GetAttribute("ControlType");
int controlZIndex = XmlConvert.ToInt32(reader.GetAttribute("ControlZIndex"));
// Create the control host and add it to the diagram
h = _diagram.CreateControlHost(0, 0, 1, 1);
objects.Add(id, h);
zOrder.Add(zIndex, h);
controlZOrder.Add(controlZIndex, h.Control);
// Read brush
reader.Read();
if(reader.GetAttribute("Id") != null)
brushId = XmlConvert.ToInt32(reader.GetAttribute("Id"));
else
brushId = -1;
// Read the pen
reader.Read();
pen = ReadPenElement(reader, brushes);
if (typeName != "" && assemblyName != "")
{
System.Type controlType = Utilities.getLoadedType(typeName, assemblyName);
if (controlType == null)
throw new FileLoadException("Cannot load hosted control of type " + typeName);
ConstructorInfo ctorInfo = controlType.GetConstructor(System.Type.EmptyTypes);
// Instantiate
h.Control = (System.Windows.Forms.Control)ctorInfo.Invoke(null);
// Read control properties
BinaryFormatter fmt = new BinaryFormatter();
fmt.Binder = new DeserializationHack();
ReadControlProperties(reader, h.Control, fmt);
}
else
{
h.Control = null;
}
// Read properties
if (!ReadProperties(reader, h, reader.Depth))
throw new InvalidFormatException(
"Unexpected EOF while parsing control host info. ControlHost: " +
i.ToString());
// Set brush and pen
if (brushId != -1)
h.Brush = (FlowChartX.Brush)brushes[brushId];
if (pen != null)
h.Pen = pen;
}
// Update the z-indices of the contained controls
foreach (System.Windows.Forms.Control control in controlZOrder.Values)
control.BringToFront();
// Read control hosts closing element
if(count > 0)
reader.Read();
}
// Read tables info
ReadMandatory(reader, "Tables",
"Tables element missing or invalid");
count = XmlConvert.ToInt32(reader.GetAttribute("Count"));
for(i = 0; i < count; i++)
{
// Read the table element
ReadMandatory(reader, "Table",
"Unrecognized table token");
id = XmlConvert.ToInt32(reader.GetAttribute("Id"));
zIndex = XmlConvert.ToInt32(reader.GetAttribute("ZIndex"));
t = _diagram.CreateTable(0, 0, 1, 1);
objects.Add(id, t);
zOrder.Add(zIndex, t);
t.RowCount = XmlConvert.ToInt32(reader.GetAttribute("Rows"));
t.ColumnCount = XmlConvert.ToInt32(reader.GetAttribute("Columns"));
// Read cell data
ReadMandatory(reader, "Data",
"Data element missing or invalid");
d = reader.Depth;
row = 0;
col = 0;
if(!reader.IsEmptyElement)
{
while(true)
{
reader.Read();
if(d == reader.Depth)
break;
// Read brush in V5
if (_version >= 5)
{
reader.Read();
int bid = -1;
if (reader.GetAttribute("Id") != null)
bid = XmlConvert.ToInt32(reader.GetAttribute("Id"));
if (bid != -1)
t[col, row].Brush = (FlowChartX.Brush)brushes[bid];
else
t[col, row].Brush = null;
ReadProperties(reader, t[col, row], reader.Depth);
}
else
{
ReadProperties(reader, t[col, row], reader.Depth + 1);
}
col++;
if(col >= t.ColumnCount)
{
col = 0;
row++;
}
}
}
// Read row data
ReadMandatory(reader, "Rows",
"Rows element missing or invalid");
d = reader.Depth;
row = 0;
if(!reader.IsEmptyElement)
{
while(true)
{
reader.Read();
if(d == reader.Depth)
break;
ReadProperties(reader, t.Rows[row], reader.Depth + 1);
row++;
}
}
// Read column data
ReadMandatory(reader, "Columns",
"Columns element missing or invalid");
d = reader.Depth;
col = 0;
if(!reader.IsEmptyElement)
{
while(true)
{
reader.Read();
if(d == reader.Depth)
break;
ReadProperties(reader, t.Columns[col], reader.Depth + 1);
col++;
}
}
// Read brush
reader.Read();
if (reader.GetAttribute("Id") != null)
brushId = XmlConvert.ToInt32(reader.GetAttribute("Id"));
else
brushId = -1;
// Read the caption brush
int captionBrushId = -1;
if (_version >= 10)
{
reader.Read();
if (reader.GetAttribute("Id") != null)
captionBrushId = XmlConvert.ToInt32(reader.GetAttribute("Id"));
else
captionBrushId = -1;
}
// Read the pen
reader.Read();
pen = ReadPenElement(reader, brushes);
// Read table properties
if(!ReadProperties(reader, t, reader.Depth))
throw new InvalidFormatException(
"Unexpected EOF while parsing table info. Table: " +
i.ToString());
// Set brush and pen
if (brushId != -1)
t.Brush = (FlowChartX.Brush)brushes[brushId];
if (captionBrushId != -1)
t.CaptionBackBrush = (FlowChartX.Brush)brushes[captionBrushId];
if (pen != null)
t.Pen = pen;
}
// Read tables closing element
if(count > 0)
reader.Read();
if (_version >= 7)
{
ReadMandatory(reader, "Containers",
"Containers element missing or invalid");
int ccount = XmlConvert.ToInt32(reader.GetAttribute("Count"));
if (ccount > 0)
{
int cdepth = reader.Depth;
while (true)
{
reader.Read();
if (reader.Depth == cdepth)
break;
}
}
}
// Read arrows info
ReadMandatory(reader, "Arrows",
"Arrows element missing or invalid");
count = XmlConvert.ToInt32(reader.GetAttribute("Count"));
for(i = 0; i < count; i++)
{
// Read the arrow element
ReadMandatory(reader, "Arrow",
"Unrecognized arrow token");
// Read the origin and destination indices
idFrom = XmlConvert.ToInt32(reader.GetAttribute("From"));
idTo = XmlConvert.ToInt32(reader.GetAttribute("To"));
idArrow = XmlConvert.ToInt32(reader.GetAttribute("Id"));
zIndex = XmlConvert.ToInt32(reader.GetAttribute("ZIndex"));
try
{
rowFrom = XmlConvert.ToInt32(reader.GetAttribute("RowFrom"));
}
catch
{
rowFrom = -1;
}
try
{
rowTo = XmlConvert.ToInt32(reader.GetAttribute("RowTo"));
}
catch
{
rowTo = -1;
}
if (idTo == -1 || idFrom == -1)
{
if (idTo == -1 && idFrom != -1)
{
from = objects[idFrom];
Node nodeFrom = from as Node;
// Temporarily turn allow arrows off
bool allowIn = nodeFrom.AllowIncomingArrows;
bool allowOut = nodeFrom.AllowOutgoingArrows;
nodeFrom.AllowIncomingArrows = true;
nodeFrom.AllowOutgoingArrows = true;
a = _diagram.CreateArrow(nodeFrom, PointF.Empty);
nodeFrom.AllowIncomingArrows = allowIn;
nodeFrom.AllowOutgoingArrows = allowOut;
}
else if (idTo != -1 && idFrom == -1)
{
to = objects[idTo];
Node nodeTo = to as Node;
// Temporarily turn allow arrows off
bool allowIn = nodeTo.AllowIncomingArrows;
bool allowOut = nodeTo.AllowOutgoingArrows;
nodeTo.AllowIncomingArrows = true;
nodeTo.AllowOutgoingArrows = true;
a = _diagram.CreateArrow(PointF.Empty, (Node)to);
nodeTo.AllowIncomingArrows = allowIn;
nodeTo.AllowOutgoingArrows = allowOut;
}
else
{
a = _diagram.CreateArrow(PointF.Empty, PointF.Empty);
}
}
else
{
from = objects[idFrom];
to = objects[idTo];
Node nodeFrom = from as Node;
Node nodeTo = to as Node;
// Temporarily turn allow arrows off
bool fromAllowIn = nodeFrom.AllowIncomingArrows;
bool fromAllowOut = nodeFrom.AllowOutgoingArrows;
bool toAllowIn = nodeTo.AllowIncomingArrows;
bool toAllowOut = nodeTo.AllowOutgoingArrows;
nodeFrom.AllowIncomingArrows = true;
nodeFrom.AllowOutgoingArrows = true;
nodeTo.AllowIncomingArrows = true;
nodeTo.AllowOutgoingArrows = true;
if(rowFrom == -1 && rowTo == -1)
{
a = _diagram.CreateArrow((Node)from, (Node)to);
}
else if(rowFrom != -1 && rowTo == -1)
{
a = _diagram.CreateArrow((Table)from, rowFrom, (Node)to);
}
else if(rowFrom == -1 && rowTo != -1)
{
a = _diagram.CreateArrow((Node)from, (Table)to, rowTo);
}
else
{
a = _diagram.CreateArrow((Table)from, rowFrom,
(Table)to, rowTo);
}
nodeFrom.AllowIncomingArrows = fromAllowIn;
nodeFrom.AllowOutgoingArrows = fromAllowOut;
nodeTo.AllowIncomingArrows = toAllowIn;
nodeTo.AllowOutgoingArrows = toAllowOut;
}
// Read the control points
ReadMandatory(reader, "Data",
"Data element missing or invalid");
d = reader.Depth;
float x, y;
points.Clear();
while(true)
{
// Read the point
reader.Read();
if(reader.Depth == d)
break;
x = XmlConvert.ToSingle(reader.GetAttribute("X"));
y = XmlConvert.ToSingle(reader.GetAttribute("Y"));
points.Add(new PointF(x, y));
}
// Read brush
reader.Read();
if(reader.GetAttribute("Id") != null)
brushId = XmlConvert.ToInt32(reader.GetAttribute("Id"));
else
brushId = -1;
// Read the pen
reader.Read();
pen = ReadPenElement(reader, brushes);
// Read head pen
if (_version > 1)
{
reader.Read();
headPen = ReadPenElement(reader, brushes);
}
// Read the properties
if(!ReadProperties(reader, a, reader.Depth))
throw new InvalidFormatException(
"Unexpected EOF while parsing arrow info. Arrow: " +
i.ToString());
// Set again segment count, because
// if the arrow is routed, settings
// segment count through SegmentCount property
// won't have any effect
if (a.Style == ArrowStyle.Bezier)
a.InternalSegmentCount = (short)((points.Count - 1) / 3);
else
a.InternalSegmentCount = (short)(points.Count - 1);
// Set the control points
for(int p = 0; p < points.Count; p++)
a.ControlPoints[p] = points[p];
a.UpdateFromPoints();
// Set brush and pen
if(brushId != -1)
a.Brush = (FlowChartX.Brush)brushes[brushId];
if(pen != null)
a.Pen = pen;
if (headPen != null)
a.HeadPen = headPen;
objects.Add(idArrow, a);
zOrder.Add(zIndex, a);
}
// Read arrows closing element
if(count > 0)
reader.Read();
// Adjust z-order
for(i = 0; i < zOrder.Count; i++)
{
ChartObject obj = (ChartObject)zOrder.GetByIndex(i);
obj.ZIndex = (int)zOrder.GetKey(i);
}
// Read groups
ReadMandatory(reader, "Groups",
"Groups element missing or invalid");
count = XmlConvert.ToInt32(reader.GetAttribute("Count"));
for(i = 0; i < count; i++)
{
// Read the group element
ReadMandatory(reader, "Group",
"Unrecognized group token");
// Read the main object
reader.Read();
id = XmlConvert.ToInt32(reader.GetAttribute("Id"));
g = _diagram.CreateGroup((ChartObject)objects[id]);
// Read group's visibility
reader.Read();
reader.Read();
g.Visible = XmlConvert.ToBoolean(reader.Value.ToLower());
reader.Read();
// Read AutoDeleteItems flag
if (_version >= 7)
{
reader.Read();
reader.Read();
g.AutoDeleteItems = XmlConvert.ToBoolean(reader.Value.ToLower());
reader.Read();
}
// Read Expandable flag
if (_version >= 8)
{
reader.Read();
reader.Read();
g.Expandable = XmlConvert.ToBoolean(reader.Value.ToLower());
reader.Read();
}
// Read FollowMasterRotation flag
if (_version >= 9)
{
reader.Read();
reader.Read();
g.FollowMasterRotation = XmlConvert.ToBoolean(reader.Value.ToLower());
reader.Read();
}
reader.Read(); // read Tag or Attachments
if (reader.Name == "Tag")
{
if (_options.CustomTagSerialization)
{
if(DeserializeTag != null)
{
SerializeTagArgs args = new SerializeTagArgs(g, null, reader);
DeserializeTag(this, args);
}
}
else
{
// Read the value
reader.Read();
if(DeserializeTag != null)
{
SerializeTagArgs args = new SerializeTagArgs(g);
args.Representation = reader.Value;
DeserializeTag(this, args);
}
}
// Read the closing Tag element
reader.Read();
// Read the Attachments
reader.Read();
}
// Process attachments
int acount = XmlConvert.ToInt32(reader.GetAttribute("Count"));
int ai;
int adata;
Node node;
float al, at, ar, ab;
AttachTo atype;
for(ai = 0; ai < acount; ai++)
{
// Read attachment element
reader.Read();
// Read data
reader.Read();
reader.Read();
adata = XmlConvert.ToInt32(reader.Value);
reader.Read();
// Read object
reader.Read();
reader.Read();
node = (Node)objects[XmlConvert.ToInt32(reader.Value)];
reader.Read();
// Read percents
reader.Read();
al = XmlConvert.ToSingle(reader.GetAttribute("Left"));
at = XmlConvert.ToSingle(reader.GetAttribute("Top"));
ar = XmlConvert.ToSingle(reader.GetAttribute("Right"));
ab = XmlConvert.ToSingle(reader.GetAttribute("Bottom"));
// Read type
reader.Read();
reader.Read();
atype = (AttachTo)XmlConvert.ToEnum(
typeof(AttachTo), reader.Value);
reader.Read();
switch(atype)
{
case AttachTo.ArrowPoint:
g.AttachToArrowPoint(node, adata);
break;
case AttachTo.ArrowSegment:
g.AttachToArrowSegment(node, adata);
break;
case AttachTo.FixedCorner:
g.AttachToCorner(node, adata);
break;
case AttachTo.Proportional:
g.AttachProportional(node, al, at, ar, ab);
break;
case AttachTo.LongestHSegment:
g.AttachToLongestHSegment(node);
break;
case AttachTo.SideMiddle:
g.AttachToSideMiddle(node, adata);
break;
}
// Read attachment closing element
reader.Read();
}
// Read attachments' closing element
if(acount > 0)
reader.Read();
// Read the group closing element
reader.Read();
}
// Read groups closing element
reader.Read();
// Read diagram closing element
reader.Read();
foreach (ChartObject obj in _diagram.Objects)
obj.onLoad();
// Note: If exception is thrown this
// flag will remain raised
_diagram.DontRouteForAwhile = false;
}
private void WriteTagElement(System.Xml.XmlWriter writer,
object obj)
{
PropertyDescriptorCollection pdc =
TypeDescriptor.GetProperties(obj);
PropertyDescriptor pd = pdc.Find("Tag", true);
object tag = pd.GetValue(obj);
if (tag != null)
{
if(SerializeTag != null)
{
if (_options.CustomTagSerialization)
{
writer.WriteStartElement("Tag");
SerializeTagArgs args = new SerializeTagArgs(obj, writer, null);
SerializeTag(this, args);
writer.WriteEndElement();
}
else
{
SerializeTagArgs args = new SerializeTagArgs(obj);
SerializeTag(this, args);
if (args.Representation != null)
writer.WriteElementString("Tag",
args.Representation);
}
}
}
}
