/// <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
Init();
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;
}
/// <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
layer.Visible = false;
mLayers.Add(layer);
}
// foreach (GraphLayer tLayer in mLayers)
// {
// if (tLayer != null && tLayer.Visible)
// {
// mCurrentLayer = tLayer;
// break;
// }
// }
// if (mCurrentLayer == null)
// {
// mCurrentLayer = DefaultLayer;
// }
// if (mCurrentLayer != null) mCurrentLayer.Visible = true;
mLayers.ClearComplete += new EventHandler(Layers_ClearComplete);
}
BindEntityCollectionEvents();
}
private void Init()
{
//the shape layers
mLayers = new GraphLayerCollection();
mLayers.ClearComplete += new EventHandler(Layers_ClearComplete);
//the default layer
mDefaultLayer = new GraphLayer("Default", Color.WhiteSmoke, 100);
mDefaultLayer.UseColor = false; //use colors only for upper layers
BindEntityCollectionEvents();
}
/// <summary>
/// Adds a collection range to this collection
/// </summary>
/// <param name="col"></param>
public void AddRange(GraphLayerCollection col)
{
InnerList.AddRange(col);
}
/// <summary>
/// Implements the dropdown style for selecting layers
/// </summary>
/// <param name="context"></param>
/// <param name="provider"></param>
/// <param name="value"></param>
/// <returns></returns>
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
// Uses the IWindowsFormsEditorService to display a drop-down UI
if (edSvc == null)
{
edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
}
if (edSvc != null)
{
if (listbox == null)
{
listbox = new ListBox();
listbox.BorderStyle = BorderStyle.None;
listbox.SelectedIndexChanged += new EventHandler(OnListBoxChanged);
}
GraphLayerAttribute attr = context.PropertyDescriptor.Attributes[typeof(GraphLayerAttribute)] as GraphLayerAttribute;
GraphLayerCollection values = new GraphLayerCollection();
//attributes are the only way to pass info from the context to the property grid
//A UITypeDescriptor is supposed to be independent of the context/application
//There is no way you can get access to the canvas starting from the grid or from this class
if (attr != null && !attr.IsDefaultAttribute())
{
values.AddRange(attr.Layers);
}
//GraphLayer dl = new GraphLayer("Default");
values.Add(GraphAbstract.DefaultLayer);
//this is only for design-time support:
//ISelectionService serv = (ISelectionService )provider.GetService(typeof(ISelectionService ));
listbox.Items.Clear();
int width = 0;
Font font = listbox.Font;
// Add the standard values in the list box and
// measure the text at the same time.
using (Graphics g = listbox.CreateGraphics())
{
foreach (GraphLayer layer in values)
{
if (!listbox.Items.Contains(layer))
{
// if (!editor.ShowPreviewOnly)
width = (int)Math.Max(width, g.MeasureString(layer.ToString(), font).Width);
listbox.Items.Add(layer);
}
}
}
listbox.SelectedItem = value;
listbox.Height =
Math.Max(font.Height + 2, Math.Min(200, listbox.PreferredHeight));
listbox.Width = Math.Max(width, 100);
edSvc.DropDownControl(listbox);
if (listbox.SelectedItem != null)
{
return(listbox.SelectedItem);
}
else
{
return(value);
}
}
return(value);
}
