internal DEdge(DNode source, DNode target, DrawingEdge drawingEdgeParam, ConnectionToGraph connection,
GViewer gviewer) : base(gviewer)
{
DrawingEdge = drawingEdgeParam;
Source = source;
Target = target;
if (connection == ConnectionToGraph.Connected)
{
if (source == target)
{
source.AddSelfEdge(this);
}
else
{
source.AddOutEdge(this);
target.AddInEdge(this);
}
}
if (drawingEdgeParam.Label != null)
{
Label = new DLabel(this, drawingEdge.Label, gviewer);
}
}
static BBNode BuildBBHierarchyUnderDObject(DObject dObject)
{
DNode dNode = dObject as DNode;
if (dNode != null)
{
return(BuildBBHierarchyUnderDNode(dNode));
}
DEdge dedge = dObject as DEdge;
if (dedge != null)
{
return(BuildBBHierarchyUnderDEdge(dedge));
}
DLabel dLabel = dObject as DLabel;
if (dLabel != null)
{
return(BuildBBHierarchyUnderDLabel(dLabel));
}
DGraph dGraph = dObject as DGraph;
if (dGraph != null)
{
dGraph.BbNode.bBox = dGraph.DrawingGraph.BoundingBox;
return(dGraph.BbNode);
}
throw new InvalidOperationException();
}
internal static bool DLabelIsValid(DLabel dLabel)
{
var drawingObj = dLabel.DrawingObject;
var edge = drawingObj.GeometryObject.GeometryParent as GeometryEdge;
return(edge == null || edge.Label != null);
}
static BBNode BuildBBHierarchyUnderDLabel(DLabel dLabel)
{
var bbNode = new BBNode();
bbNode.geometry = new Geometry(dLabel);
bbNode.bBox = dLabel.DrawingLabel.BoundingBox;
return(bbNode);
}
internal static void CreateDLabel(DObject parent, Microsoft.Msagl.Drawing.Label label, out double width, out double height)
{
DLabel dLabel = new DLabel(parent, label);
dLabel.Font = new Font(label.FontName, label.FontSize);
StringMeasure.MeasureWithFont(label.Text, dLabel.Font, out width, out height);
label.Width = width;
label.Height = height;
}
internal DEdge(DNode source, DNode target, DrawingEdge drawingEdgeParam, ConnectionToGraph connection,
GViewer gviewer) : base(gviewer) {
DrawingEdge = drawingEdgeParam;
Source = source;
Target = target;
if (connection == ConnectionToGraph.Connected) {
if (source == target)
source.AddSelfEdge(this);
else {
source.AddOutEdge(this);
target.AddInEdge(this);
}
}
if (drawingEdgeParam.Label != null)
Label = new DLabel(this, drawingEdge.Label, gviewer);
}
internal Geometry(DObject tag)
{
this.tag = tag;
DNode dNode = tag as DNode;
if (dNode != null)
{
bBox = dNode.DrawingNode.BoundingBox;
}
else
{
DLabel dLabel = tag as DLabel;
if (dLabel != null)
{
bBox = dLabel.DrawingLabel.BoundingBox;
}
}
}
internal static void CreateDLabel(DObject parent, Drawing.Label label, out double width, out double height,
GViewer viewer)
{
var dLabel = new DLabel(parent, label, viewer)
{
Font = new Font(label.FontName, (int)label.FontSize, (System.Drawing.FontStyle)(int) label.FontStyle)
};
StringMeasure.MeasureWithFont(label.Text, dLabel.Font, out width, out height);
if (width <= 0)
{
//this is a temporary fix for win7 where Measure fonts return negative lenght for the string " "
StringMeasure.MeasureWithFont("a", dLabel.Font, out width, out height);
}
label.Width = width;
label.Height = height;
}
internal Geometry(DObject dObject)
{
this.dObject = dObject;
DNode dNode = dObject as DNode;
if (dNode != null)
{
bBox = dNode.DrawingNode.BoundingBox;
}
else
{
DLabel dLabel = dObject as DLabel;
if (dLabel != null)
{
bBox = dLabel.DrawingLabel.BoundingBox;
}
}
}
static internal void DrawLabel(Graphics g, DLabel label)
{
if (label == null)
{
return;
}
try {
using (SolidBrush sb = new SolidBrush(MsaglColorToDrawingColor(label.DrawingLabel.FontColor))) {
DrawStringInRectCenter(g, sb,
label.Font, label.DrawingLabel.Text,
new RectangleF((float)label.DrawingLabel.Left, (float)label.DrawingLabel.Bottom,
(float)label.DrawingLabel.Size.Width, (float)label.DrawingLabel.Size.Height));
}
} catch { }
if (label.MarkedForDragging)
{
Pen pen = new Pen(MsaglColorToDrawingColor(label.DrawingLabel.FontColor));
pen.DashStyle = DashStyle.Dot;
DrawLine(g, pen, label.DrawingLabel.GeometryLabel.AttachmentSegmentStart,
label.DrawingLabel.GeometryLabel.AttachmentSegmentEnd);
}
}
internal static void CreateDLabel(DObject parent, Drawing.Label label, out double width, out double height,
GViewer viewer){
var dLabel = new DLabel(parent, label, viewer){Font = new Font(label.FontName, (int)label.FontSize)};
StringMeasure.MeasureWithFont(label.Text, dLabel.Font, out width, out height);
if (width <= 0)
//this is a temporary fix for win7 where Measure fonts return negative lenght for the string " "
StringMeasure.MeasureWithFont("a", dLabel.Font, out width, out height);
label.Width = width;
label.Height = height;
}
static BBNode BuildBBHierarchyUnderDLabel(DLabel dLabel){
var bbNode = new BBNode();
bbNode.geometry = new Geometry(dLabel);
bbNode.bBox = dLabel.DrawingLabel.BoundingBox;
return bbNode;
}
internal static bool DLabelIsValid(DLabel dLabel) {
var drawingObj = dLabel.DrawingObject;
var edge = drawingObj.GeometryObject.GeometryParent as GeometryEdge;
return edge == null || edge.Label != null;
}
private static RectangleF GetLabelRect(DLabel label)
{
var subgraph = label.DrawingLabel.Owner as Subgraph;
if (subgraph != null)
{
var cluster = (Cluster) subgraph.GeometryNode;
var rb = cluster.RectangularBoundary;
var cx = rb.Rect.Left + rb.Rect.Width/2;
var cy = cluster.BoundingBox.Top - rb.TopMargin/2;
var size = label.DrawingLabel.Size;
return new RectangleF(
(float) (cx - size.Width/2),
(float) (cy - size.Height/2),
(float) size.Width,
(float) size.Height);
}
else
{
var rectF = new RectangleF((float) label.DrawingLabel.Left, (float) label.DrawingLabel.Bottom,
(float) label.DrawingLabel.Size.Width,
(float) label.DrawingLabel.Size.Height);
return rectF;
}
}
internal static void DrawLabel(Graphics g, DLabel label){
if (label == null || label.DrawingLabel.Width == 0)
return;
var rectF = GetLabelRect(label);
try{
DrawStringInRectCenter(g, new SolidBrush(MsaglColorToDrawingColor(label.DrawingLabel.FontColor)),
label.Font, label.DrawingLabel.Text, rectF);
}
catch{
}
if(label.MarkedForDragging){
var pen = new Pen(MsaglColorToDrawingColor(label.DrawingLabel.FontColor));
pen.DashStyle = DashStyle.Dot;
DrawLine(g, pen, label.DrawingLabel.GeometryLabel.AttachmentSegmentStart,
label.DrawingLabel.GeometryLabel.AttachmentSegmentEnd);
}
}
