/// <summary>
///if layer is not inserted before, insert it into Layers
/// </summary>
/// <param name="layer"></param>
public void Insert(GraphLayer layer)
{
foreach (GraphLayer l in mLayers)
{
if (layer == l)
{
return;
}
}
mLayers.Add(layer);
}
/// <summary>
/// Default ctor
/// </summary>
public GraphAbstract()
{
mGraphInformation = new GraphInformation();
Init();
// Insert(DefaultLayer);
mCurrentLayer = DefaultLayer;
if (mCurrentLayer != null)
{
mCurrentLayer.Visible = true;
}
}
/// <summary>
/// Sets the shape in a layer.
/// Use "default" to set the shape in the default layer.
/// </summary>
/// <param name="name"></param>
public void SetLayer(string name)
{
GraphLayer layer = Site.Abstract.Layers[name];
if (layer == null)
{
SetLayer(Site.Abstract.DefaultLayer);
}
else
{
SetLayer(Site.Abstract.Layers[name]);
}
}
private void Init()
{
//the shape layers
GraphLayer layer = new GraphLayer("Default", Color.WhiteSmoke, 100);
layer.UseColor = false; //use colors only for upper layers
mLayers = new GraphLayerCollection();
mLayers.Add(layer);
mLayers.ClearComplete += new EventHandler(Layers_ClearComplete);
//the default layer
BindEntityCollectionEvents();
}
/// <summary>
/// Adds a layer to the collection
/// </summary>
/// <param name="layer"></param>
/// <returns></returns>
public int Add(GraphLayer layer)
{
for (int i = 0; i < InnerList.Count; i++)
{
if (layer == InnerList[i])
{
return(i);
}
}
int index = this.InnerList.Add(layer);
layer.SetNumber(index);
return(index);
}
/// <summary>
/// Deserialization constructor
/// </summary>
/// <param name="info"></param>
/// <param name="context"></param>
public GraphAbstract(SerializationInfo info, StreamingContext context)
{
#region Version test
//test the version, warn if the build or major is different
Version currentversion = Assembly.GetExecutingAssembly().GetName().Version;
Version fileversion = new Version(info.GetString("NetronGraphLibVersion"));
int diff = currentversion.CompareTo(fileversion);
if (fileversion.Minor != currentversion.Minor || fileversion.Major != currentversion.Major)
{
DialogResult res = MessageBox.Show("The graph was saved in version " + fileversion.ToString() + " while the current graph library has version " + currentversion.ToString() + ". It is not guaranteed that the graph will appeare as it was when saved. Are you sure you want to open the graph?", "Different version", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
if (res == DialogResult.No)
{
return;
}
}
#endregion
this.mShapes = info.GetValue("mShapes", typeof(ShapeCollection)) as ShapeCollection;
this.mConnections = info.GetValue("mConnections", typeof(ConnectionCollection)) as ConnectionCollection;
this.mGraphInformation = info.GetValue("mGraphInformation", typeof(GraphInformation)) as GraphInformation;
this.mLayers = info.GetValue("mLayers", typeof(GraphLayerCollection)) as GraphLayerCollection;
if (mLayers != null)
{
GraphLayer layer = mLayers["Default"];
if (layer == null)
{
layer = new GraphLayer("Default", Color.WhiteSmoke, 100);
layer.UseColor = false; //use colors only for upper layers
mLayers.Add(layer);
}
mCurrentLayer = DefaultLayer;
if (mCurrentLayer != null)
{
mCurrentLayer.Visible = true;
}
mLayers.ClearComplete += new EventHandler(Layers_ClearComplete);
}
BindEntityCollectionEvents();
}
/// <summary>
/// 设置编号为layerIndex的Layer为CurrentLayer,并设置前一个激活的Layer为不可见
/// </summary>
/// <param name="layerIndex"></param>
/// <returns></returns>
public bool ActiveLayer(int layerIndex)
{
GraphLayer layer = mLayers[layerIndex];
if (layer != null)
{
if (mCurrentLayer != null)
{
mCurrentLayer.Visible = false;
}
mCurrentLayer = layer;
layer.Visible = true;
return(true);
}
return(false);
}
/// <summary>
/// return the shapes of layer
/// </summary>
/// <param name="layerName"></param>
/// <returns></returns>
public ShapeCollection ShapesOfLayer(string layerName)
{
ShapeCollection shapes = new ShapeCollection();
GraphLayer layer = Layers[layerName];
if (layer != null)
{
foreach (Shape shape in Shapes)
{
if (shape.Layer == layer)
{
shapes.Add(shape);
}
}
}
return(shapes);
}
/// <summary>
/// return the connections of layer
/// </summary>
/// <param name="layerName"></param>
/// <returns></returns>
public ConnectionCollection ConnectionsOfLayer(string layerName)
{
ConnectionCollection connections = new ConnectionCollection();
GraphLayer layer = Layers[layerName];
if (layer != null)
{
foreach (Connection connection in Connections)
{
if (connection.Layer == layer)
{
connections.Add(connection);
}
}
}
return(connections);
}
/// <summary>
/// 设置layerName的Layer为CurrentLayer,并设置前一个激活的Layer为不可见
/// </summary>
/// <param name="layerName"></param>
/// <returns>激活成功则返回true</returns>
public bool ActiveLayer(string layerName)
{
GraphLayer layer = mLayers[layerName];
if (layer != null)
{
foreach (GraphLayer l in mLayers)
{
l.Visible = false;
}
mCurrentLayer = layer;
layer.Visible = true;
Site.Invalidate();
return(true);
}
return(false);
}
/// <summary>
/// Puts the connection in a layer
/// </summary>
/// <param name="layer"></param>
protected override void SetLayer(GraphLayer layer)
{
base.SetLayer(layer);
if (layer == GraphAbstract.DefaultLayer)
{
LineColor = Color.FromArgb(255, mLineColor);
}
else
{
if (Layer.UseColor)
{
LineColor = Color.FromArgb((int)(Layer.Opacity * 255f / 100), Layer.LayerColor);
}
else
{
LineColor = Color.FromArgb((int)(Layer.Opacity * 255f / 100), mLineColor);
}
}
}
/// <summary>
/// Override the Entity.SetLayer to adapt the shape's appearance in function of the
/// layer's parameters.
/// </summary>
/// <param name="layer">a pre-defined or added graph-layer</param>
protected override void SetLayer(GraphLayer layer)
{
if (layer == null)
{
return;
}
base.SetLayer(layer);
if (layer == Site.Abstract.DefaultLayer)
{
mShapeColor = Color.FromArgb(255, ShapeColor);
if (Pen == null)
{
Pen = new Pen(Brushes.Black, PenWidth);
}
TextColor = Color.FromArgb(255, TextColor);
}
else
{
int alpha = (int)(Layer.Opacity * 255f / 100);
if (Layer.UseColor)
{
mShapeColor = Color.FromArgb(alpha, Layer.LayerColor);
}
else
{
mShapeColor = Color.FromArgb((int)(Layer.Opacity * 255f / 100), ShapeColor);
}
if (Pen == null)
{
Pen = new Pen(Color.FromArgb(alpha, Color.Black), PenWidth);
}
else
{
Pen = new Pen(Color.FromArgb(alpha, Pen.Color), PenWidth);
}
TextColor = Color.FromArgb(alpha, TextColor);
}
}
/// <summary>
/// Removes a graph-layer from the collection
/// </summary>
/// <param name="layer"></param>
public void Remove(GraphLayer layer)
{
InnerList.Remove(layer);
}
/// <summary>
/// Sets the layer the entity belongs to
/// </summary>
/// <param name="layer"></param>
protected virtual void SetLayer(GraphLayer layer)
{
mLayer = layer;
return;
}