TransferToGraphDrawer
(
GraphDrawer graphDrawer
)
{
Debug.Assert(graphDrawer != null);
AssertValid();
Font oFont = this.Font;
System.Windows.Media.Typeface oTypeface =
WpfGraphicsUtil.FontToTypeface(oFont);
Double dFontSize = WpfGraphicsUtil.WindowsFormsFontSizeToWpfFontSize(
oFont.Size);
VertexDrawer oVertexDrawer = graphDrawer.VertexDrawer;
oVertexDrawer.SetFont(oTypeface, dFontSize);
oVertexDrawer.LabelFillColor =
WpfGraphicsUtil.ColorToWpfColor(this.VertexLabelFillColor);
oVertexDrawer.LabelPosition = this.VertexLabelPosition;
oVertexDrawer.MaximumLabelLength = this.VertexLabelMaximumLength;
EdgeDrawer oEdgeDrawer = graphDrawer.EdgeDrawer;
oEdgeDrawer.SetFont(oTypeface, dFontSize);
oEdgeDrawer.MaximumLabelLength = this.EdgeLabelMaximumLength;
}
CreateNodeXLVisual
(
GeneralUserSettings oGeneralUserSettings
)
{
Debug.Assert(oGeneralUserSettings != null);
AssertValid();
NodeXLVisual oNodeXLVisual = new NodeXLVisual();
GraphDrawer oGraphDrawer = oNodeXLVisual.GraphDrawer;
VertexDrawer oVertexDrawer = oGraphDrawer.VertexDrawer;
EdgeDrawer oEdgeDrawer = oGraphDrawer.EdgeDrawer;
oGeneralUserSettings.TransferToGraphDrawer(oGraphDrawer);
// Override some of the user's settings.
oVertexDrawer.Shape = VertexShape.Disk;
oVertexDrawer.Radius = 2.0;
oEdgeDrawer.Width = 1;
oEdgeDrawer.SelectedWidth = 1;
return(oNodeXLVisual);
}
// ----Обработчики событий
/// <summary>
/// Привести в соответствие с координатами мыши выделение вершин графа.
/// Та, которая под мышью, будет выделенной, а та, с которой мышь ушла, станет обычной
/// </summary>
/// <param name="mousePoint">Координаты мыши</param>
private void ChangeVerticesSelecting(PointF mousePoint)
{
// Если была выделенная вершина, проверяем, покинула ли мышь её. Если нет - конец. Если да - убираем подсветку
if (SelectedVertex != null)
{
if (!VertexDrawer.IsCoordinatesOnVertex(SelectedVertex, mousePoint))
{
// Для экономии перерисовываем не всё, а только эту вершину
VertexDrawer.DrawVertex(GetGraphics(), SelectedVertex);
SelectedVertex = null;
Invalidate();
}
else
{
return;
}
}
// Смотрим, оказалась ли теперь мышь над одной из вершин
foreach (var vertex in Graph.Vertices)
{
// Если да - выделяем и выходим (больше искать нечего)
if (VertexDrawer.IsCoordinatesOnVertex(vertex, mousePoint))
{
SelectedVertex = vertex;
VertexDrawer.DrawSelectedVertex(GetGraphics(), vertex);
Invalidate();
return;
}
}
}
/// <summary>
/// Метод отрисовки графа
/// </summary>
public void DrawGraph(Graphics g)
{
if (Graph == null)
{
return;
}
// Очищаем поверхность и заливаем заданным фоновым цветом
g.Clear(Settings.BackgroundColor);
// Рисуем вершины
foreach (var vertex in Graph.Vertices)
{
if (vertex == SelectedVertex)
{
VertexDrawer.DrawSelectedVertex(g, vertex);
}
else
{
VertexDrawer.DrawVertex(g, vertex);
}
}
// Рисуем рёбра
foreach (var edge in Graph.Edges)
{
if (edge == SelectedEdge)
{
EdgeDrawer.DrawSelectedEdge(g, edge);
}
else
{
EdgeDrawer.DrawEdge(g, edge);
}
}
}
//*************************************************************************
// Constructor: GraphDrawer()
//
/// <summary>
/// Initializes a new instance of the <see cref="GraphDrawer" /> class.
/// </summary>
///
/// <param name="parentVisual">
/// The parent of the contained <see
/// cref="GraphDrawer.VisualCollection" />. This is usually a
/// FrameworkElement that is hosting the collection.
/// </param>
//*************************************************************************
public GraphDrawer
(
Visual parentVisual
)
{
Debug.Assert(parentVisual != null);
m_oVisualCollection = new VisualCollection(parentVisual);
m_oAllVertexDrawingVisuals = null;
m_oUnselectedEdgeDrawingVisuals = null;
m_oSelectedEdgeDrawingVisuals = null;
m_oVertexDrawer = new VertexDrawer();
m_oEdgeDrawer = new EdgeDrawer();
m_oBackColor = SystemColors.WindowColor;
// Forward the events fired by the vertex and edge drawers.
m_oVertexDrawer.RedrawRequired +=
delegate { this.FireRedrawRequired(); };
m_oVertexDrawer.LayoutRequired +=
delegate { this.FireLayoutRequired(); };
m_oEdgeDrawer.RedrawRequired +=
delegate { this.FireRedrawRequired(); };
m_oEdgeDrawer.LayoutRequired +=
delegate { this.FireLayoutRequired(); };
AssertValid();
}
TransferToGraphDrawer
(
GraphDrawer graphDrawer
)
{
Debug.Assert(graphDrawer != null);
AssertValid();
this.LabelUserSettings.TransferToGraphDrawer(graphDrawer);
graphDrawer.BackColor =
WpfGraphicsUtil.ColorToWpfColor(this.BackColor);
EdgeDrawer oEdgeDrawer = graphDrawer.EdgeDrawer;
VertexDrawer oVertexDrawer = graphDrawer.VertexDrawer;
EdgeWidthConverter oEdgeWidthConverter = new EdgeWidthConverter();
AlphaConverter oAlphaConverter = new AlphaConverter();
oEdgeDrawer.Width =
oEdgeWidthConverter.WorkbookToGraph(this.EdgeWidth);
oEdgeDrawer.SelectedWidth =
oEdgeWidthConverter.WorkbookToGraph(this.SelectedEdgeWidth);
oEdgeDrawer.Color = WpfGraphicsUtil.ColorToWpfColor(
Color.FromArgb(oAlphaConverter.WorkbookToGraphAsByte(
this.EdgeAlpha),
this.EdgeColor)
);
oEdgeDrawer.SelectedColor = WpfGraphicsUtil.ColorToWpfColor(
this.SelectedEdgeColor);
oEdgeDrawer.RelativeArrowSize = this.RelativeArrowSize;
oVertexDrawer.Shape = this.VertexShape;
oVertexDrawer.Radius = (new VertexRadiusConverter()).WorkbookToGraph(
this.VertexRadius);
oVertexDrawer.Color = WpfGraphicsUtil.ColorToWpfColor(
Color.FromArgb(oAlphaConverter.WorkbookToGraphAsByte(
this.VertexAlpha),
this.VertexColor)
);
oVertexDrawer.SelectedColor = WpfGraphicsUtil.ColorToWpfColor(
this.SelectedVertexColor);
}
CreateVisual
(
Point currentMouseLocation,
Color backColor,
VertexDrawer vertexDrawer
)
{
Debug.Assert(vertexDrawer != null);
Debug.Assert(m_bDragIsInProgress);
AssertValid();
// This method redraws the dragged vertices at an offset location, and
// adds the resulting Visuals to a ContainerVisual.
//
// Figure out the offset.
Double dOffsetX = currentMouseLocation.X - m_oMouseDownLocation.X;
Double dOffsetY = currentMouseLocation.Y - m_oMouseDownLocation.Y;
GraphDrawingContext oGraphDrawingContext = new GraphDrawingContext(
m_oGraphRectangle, m_iMargin, backColor);
ContainerVisual oContainerVisual = new ContainerVisual();
foreach (IVertex oVertex in m_aoVertices)
{
System.Drawing.PointF oOriginalLocation =
GetOriginalVertexLocation(oVertex);
oVertex.Location = new System.Drawing.PointF(
oOriginalLocation.X + (Single)dOffsetX,
oOriginalLocation.Y + (Single)dOffsetY
);
VertexDrawingHistory oVertexDrawingHistory;
if (vertexDrawer.TryDrawVertex(oVertex, oGraphDrawingContext,
out oVertexDrawingHistory))
{
oContainerVisual.Children.Add(
oVertexDrawingHistory.DrawingVisual);
}
}
m_oVisual = oContainerVisual;
return(m_oVisual);
}
private static ILayout ChooseLayout(GraphLayoutType s)
{
EdgeDrawer ed = new EdgeDrawer();
gd.EdgeDrawer = ed;
ed.Color = Color.Red;
VertexDrawer vd = new VertexDrawer();
gd.VertexDrawer = vd;
vd.Shape = VertexDrawer.VertexShape.Disk;
ILayout fr = new FruchtermanReingoldLayout();
switch (s)
{
case GraphLayoutType.Fruchterman_Reingold:
fr = new FruchtermanReingoldLayout();
break;
case GraphLayoutType.Random:
fr = new RandomLayout();
break;
case GraphLayoutType.Circle:
fr = new CircleLayout();
break;
case GraphLayoutType.Kamada_Kawaii:
fr = new KamadaKawaiiLayout();
break;
case GraphLayoutType.Grid:
fr = new GridLayout();
break;
case GraphLayoutType.Sugiyama:
SugiyamaEdgeDrawer eds = new SugiyamaEdgeDrawer();
gd.EdgeDrawer = eds;
eds.Color = Color.Red;
SugiyamaVertexDrawer vds = new SugiyamaVertexDrawer();
gd.VertexDrawer = vds;
vds.Shape = VertexDrawer.VertexShape.Sphere;
fr = new SugiyamaLayout();
break;
}
return(fr);
}
//*************************************************************************
// Constructor: GraphDrawer()
//
/// <summary>
/// Initializes a new instance of the <see cref="GraphDrawer" /> class.
/// </summary>
///
/// <param name="parentVisual">
/// The parent of the contained <see
/// cref="GraphDrawer.VisualCollection" />. This is usually a
/// FrameworkElement that is hosting the collection.
/// </param>
//*************************************************************************
public GraphDrawer
(
Visual parentVisual
)
{
Debug.Assert(parentVisual != null);
m_oVisualCollection = new VisualCollection(parentVisual);
m_oAllVertexDrawingVisuals = null;
m_oUnselectedEdgeDrawingVisuals = null;
m_oSelectedEdgeDrawingVisuals = null;
m_oVertexDrawer = new VertexDrawer();
m_oEdgeDrawer = new EdgeDrawer();
m_oGroupDrawer = new GroupDrawer();
m_oBackColor = SystemColors.WindowColor;
m_oBackgroundImage = null;
AssertValid();
}
/// <summary>
/// Метод отрисовки графа
/// </summary>
public void DrawGraph()
{
if (Graph == null)
{
return;
}
using (var g = GetGraphics()) {
// Очищаем поверхность и заливаем заданным фоновым цветом
g.Clear(Settings.BackgroundColor);
// Рисуем вершины
foreach (var vertex in Graph.Vertices)
{
if (vertex == SelectedVertex)
{
VertexDrawer.DrawSelectedVertex(g, vertex);
}
else
{
VertexDrawer.DrawVertex(g, vertex);
}
}
// Рисуем рёбра
foreach (var edge in Graph.Edges)
{
if (edge == SelectedEdge)
{
EdgeDrawer.DrawSelectedEdge(g, edge);
}
else
{
EdgeDrawer.DrawEdge(g, edge);
}
}
// Вызываем перерисовку элемента управления
Invalidate();
}
}
TransferToGraphDrawer
(
GraphDrawer graphDrawer
)
{
Debug.Assert(graphDrawer != null);
AssertValid();
this.LabelUserSettings.TransferToGraphDrawer(graphDrawer);
graphDrawer.BackColor =
WpfGraphicsUtil.ColorToWpfColor(this.BackColor);
if (!String.IsNullOrEmpty(this.BackgroundImageUri))
{
graphDrawer.BackgroundImage =
(new WpfImageUtil()).GetImageSynchronousIgnoreDpi(
this.BackgroundImageUri);
}
else
{
graphDrawer.BackgroundImage = null;
}
EdgeDrawer oEdgeDrawer = graphDrawer.EdgeDrawer;
VertexDrawer oVertexDrawer = graphDrawer.VertexDrawer;
EdgeWidthConverter oEdgeWidthConverter = new EdgeWidthConverter();
AlphaConverter oAlphaConverter = new AlphaConverter();
oEdgeDrawer.Width =
oEdgeWidthConverter.WorkbookToGraph(this.EdgeWidth);
oEdgeDrawer.Color = WpfGraphicsUtil.ColorToWpfColor(
Color.FromArgb(oAlphaConverter.WorkbookToGraphAsByte(
this.EdgeAlpha),
this.EdgeColor)
);
oEdgeDrawer.CurveStyle = this.EdgeCurveStyle;
oEdgeDrawer.BezierDisplacementFactor =
this.EdgeBezierDisplacementFactor;
oEdgeDrawer.SelectedColor = WpfGraphicsUtil.ColorToWpfColor(
this.SelectedEdgeColor);
oEdgeDrawer.RelativeArrowSize = this.RelativeArrowSize;
oVertexDrawer.Shape = this.VertexShape;
oVertexDrawer.Radius = (new VertexRadiusConverter()).WorkbookToGraph(
this.VertexRadius);
oVertexDrawer.Effect = this.VertexEffect;
oVertexDrawer.RelativeOuterGlowSize = this.VertexRelativeOuterGlowSize;
oVertexDrawer.Color = WpfGraphicsUtil.ColorToWpfColor(
Color.FromArgb(oAlphaConverter.WorkbookToGraphAsByte(
this.VertexAlpha),
this.VertexColor)
);
oVertexDrawer.SelectedColor = WpfGraphicsUtil.ColorToWpfColor(
this.SelectedVertexColor);
}
private static ILayout ChooseLayout(GraphLayoutType s)
{
EdgeDrawer ed = new EdgeDrawer();
gd.EdgeDrawer = ed;
ed.Color = Color.Red;
VertexDrawer vd = new VertexDrawer();
gd.VertexDrawer = vd;
vd.Shape = VertexDrawer.VertexShape.Disk;
ILayout fr = new FruchtermanReingoldLayout();
switch (s)
{
case GraphLayoutType.Fruchterman_Reingold:
fr = new FruchtermanReingoldLayout();
break;
case GraphLayoutType.Random:
fr = new RandomLayout();
break;
case GraphLayoutType.Circle:
fr = new CircleLayout();
break;
case GraphLayoutType.Kamada_Kawaii:
fr = new KamadaKawaiiLayout();
break;
case GraphLayoutType.Grid:
fr = new GridLayout();
break;
case GraphLayoutType.Sugiyama:
SugiyamaEdgeDrawer eds = new SugiyamaEdgeDrawer();
gd.EdgeDrawer = eds;
eds.Color = Color.Red;
SugiyamaVertexDrawer vds = new SugiyamaVertexDrawer();
gd.VertexDrawer = vds;
vds.Shape = VertexDrawer.VertexShape.Sphere;
fr = new SugiyamaLayout();
break;
}
return fr;
}
TransferToGraphDrawer
(
GraphDrawer graphDrawer
)
{
Debug.Assert(graphDrawer != null);
AssertValid();
System.Windows.Media.Typeface oTypeface;
Double dFontSize;
//***********
// Vertex
//***********
VertexDrawer oVertexDrawer = graphDrawer.VertexDrawer;
FontToTypefaceAndFontSize(this.VertexFont,
out oTypeface, out dFontSize);
oVertexDrawer.SetFont(oTypeface, dFontSize);
oVertexDrawer.LabelFillColor =
WpfGraphicsUtil.ColorToWpfColor(this.VertexLabelFillColor);
oVertexDrawer.LabelPosition = this.VertexLabelPosition;
oVertexDrawer.MaximumLabelLength = this.VertexLabelMaximumLength;
oVertexDrawer.LabelWrapText = this.VertexLabelWrapText;
oVertexDrawer.LabelWrapMaxTextWidth =
this.VertexLabelWrapMaxTextWidth;
//***********
// Edge
//***********
EdgeDrawer oEdgeDrawer = graphDrawer.EdgeDrawer;
FontToTypefaceAndFontSize(this.EdgeFont, out oTypeface, out dFontSize);
oEdgeDrawer.SetFont(oTypeface, dFontSize);
oEdgeDrawer.LabelTextColor =
WpfGraphicsUtil.ColorToWpfColor(this.EdgeLabelTextColor);
oEdgeDrawer.MaximumLabelLength = this.EdgeLabelMaximumLength;
//***********
// Group
//***********
GroupDrawer oGroupDrawer = graphDrawer.GroupDrawer;
FontToTypefaceAndFontSize(this.GroupFont,
out oTypeface, out dFontSize);
oGroupDrawer.SetFont(oTypeface, dFontSize);
oGroupDrawer.LabelTextColor = WpfGraphicsUtil.ColorToWpfColor(
Color.FromArgb((new AlphaConverter()).WorkbookToGraphAsByte(
this.GroupLabelTextAlpha),
this.GroupLabelTextColor)
);
oGroupDrawer.LabelPosition = this.GroupLabelPosition;
}
