public static void Main()
{
// Creates graph with model
mxGraph graph = new mxGraph();
// Adds cells into the model
Object parent = graph.GetDefaultParent();
graph.Model.BeginUpdate();
Object v1, v2, e1;
try
{
v1 = graph.InsertVertex(parent, null, "Hello", 20, 20, 80, 30);
v2 = graph.InsertVertex(parent, null, "World!", 200, 150, 80, 30);
e1 = graph.InsertEdge(parent, null, "e1", v1, v2);
}
finally
{
graph.Model.EndUpdate();
}
mxCodec codec = new mxCodec();
XmlNode node = codec.Encode(graph.Model);
string xml1 = mxUtils.GetPrettyXml(node);
codec = new mxCodec();
Object model = codec.Decode(node);
codec = new mxCodec();
node = codec.Encode(model);
string xml2 = mxUtils.GetPrettyXml(node);
Console.WriteLine("mxCodecTest Passed: "+(xml1.Equals(xml2)));
Thread.Sleep(100000);
}
public GraphControl(mxGraph graph)
{
this.graph = graph;
this.AutoScroll = true;
this.Paint += new PaintEventHandler(PaintBuffer);
this.graph.Model.GraphModelChange += new mxGraphModelChangeEventHandler(RefreshBuffer);
}
protected void Page_Load(object sender, EventArgs e)
{
// Creates an instance of a graph to add vertices and edges. The instance can
// then be used to create the corresponding XML using a codec. Note that this
// is only required if a graph is programmatically created. If the XML for the
// graph is already at hand, it can be sent directly here.
mxGraph graph = new mxGraph();
Object parent = graph.GetDefaultParent();
// Adds vertices and edges to the graph.
graph.Model.BeginUpdate();
try
{
Object v1 = graph.InsertVertex(parent, null, "Hello,", 20, 20, 80, 30);
Object v2 = graph.InsertVertex(parent, null, "World!", 200, 150, 80, 30);
Object e1 = graph.InsertEdge(parent, null, "Edge", v1, v2);
}
finally
{
graph.Model.EndUpdate();
}
// Encodes the model into XML and passes the resulting XML string into a page
// variable, so it can be read when the page is rendered on the server. Note
// that the page instance is destroyed after the page was sent to the client.
mxCodec codec = new mxCodec();
Xml = mxUtils.GetXml(codec.Encode(graph.Model));
}
static void example1()
{
// Creates graph with model
mxGraph graph = new mxGraph();
Object parent = graph.GetDefaultParent();
// Adds cells into the graph
graph.Model.BeginUpdate();
try
{
Object v1 = graph.InsertVertex(parent, null, "Hello", 20, 20, 80, 30);
Object v2 = graph.InsertVertex(parent, null, "World!", 200, 150, 80, 30);
Object e1 = graph.InsertEdge(parent, null, "e1", v1, v2);
}
finally
{
graph.Model.EndUpdate();
}
// Example to save the graph in multiple images
//Image img = mxCellRenderer.CreateImage(graph, null, 1, Color.White, true, new mxRectangle(0, 0, 150, 200));
//img.Save("example1.png", ImageFormat.Png);
//Image img2 = mxCellRenderer.CreateImage(graph, null, 1, (Color?)BackColor, true, new mxRectangle(150, 0, 150, 200));
//img2.Save("example2.png", ImageFormat.Png);
}
/// <summary>
/// Creates an image for the given arguments.
/// </summary>
public static Image CreateImage(mxGraph graph, Object[] cells, double scale, Color? background,
bool antiAlias, mxRectangle clip, mxGdiCanvas graphicsCanvas)
{
mxImageCanvas canvas = (mxImageCanvas) DrawCells(graph, cells, scale, clip,
new ImageCanvasFactory(graphicsCanvas, background, antiAlias));
return canvas.Destroy();
}
public LayoutForm()
{
mxGraph graph = new mxGraph();
Object parent = graph.GetDefaultParent();
graph.Model.BeginUpdate();
try
{
int nodeCount = 100;
int edgeCount = 100;
Object[] nodes = new Object[nodeCount];
for (int i = 0; i < nodeCount; i++)
{
nodes[i] = graph.InsertVertex(parent, null, 'N' + i, 0, 0, 30, 30);
}
Random r = new Random();
for (int i = 0; i < edgeCount; i++)
{
int r1 = (int)(r.NextDouble() * nodeCount);
int r2 = (int)(r.NextDouble() * nodeCount);
graph.InsertEdge(parent, null, r1 + '-' + r2,
nodes[r1], nodes[r2]);
}
mxIGraphLayout layout = new mxFastOrganicLayout(graph);
layout.execute(parent);
}
finally
{
graph.Model.EndUpdate();
}
graph.View.Scale = 0.2;
graphControl = new GraphControl(graph);
graphControl.Dock = DockStyle.Fill;
Controls.Add(graphControl);
Size = new Size(320, 200);
}
public GraphForm()
{
// Registers custom shapes
XmlDocument doc = mxUtils.ParseXml(mxUtils.ReadFile("../../../../java/examples/com/mxgraph/examples/swing/shapes.xml"));
XmlNodeList list = doc.DocumentElement.GetElementsByTagName("shape");
for (int i = 0; i < list.Count; i++)
{
XmlElement shape = (XmlElement)list.Item(i);
mxStencilRegistry.AddStencil(shape.GetAttribute("name"),
new mxStencil(shape));
}
// Creates graph with model
mxGraph graph = new mxGraph();
Object parent = graph.GetDefaultParent();
// Adds cells into the graph
graph.Model.BeginUpdate();
try
{
Object v1 = graph.InsertVertex(parent, null, "Hello", 20, 20, 80, 30, "shape=and;fillColor=#ff0000;gradientColor=#ffffff;shadow=1");
Object v2 = graph.InsertVertex(parent, null, "World!", 200, 150, 80, 30, "shape=or;shadow=1");
Object e1 = graph.InsertEdge(parent, null, "e1", v1, v2);
}
finally
{
graph.Model.EndUpdate();
}
// Creates a component for the graph
graphControl = new GraphControl(graph);
graphControl.Dock = DockStyle.Fill;
Controls.Add(graphControl);
Size = new Size(320, 200);
}
/// <summary>
/// Constructs a new fast organic layout for the specified graph.
/// </summary>
/// <param name="graph"></param>
public mxFastOrganicLayout(mxGraph graph)
{
this.graph = graph;
}
/// <summary>
/// Draws the given cells using a Graphics2D canvas and returns the buffered image
/// that represents the cells.
/// </summary>
public static mxICanvas DrawCells(mxGraph graph, Object[] cells, double scale,
mxRectangle clip, CanvasFactory factory)
{
mxICanvas canvas = null;
if (cells == null)
{
cells = new Object[] { graph.Model.Root };
}
if (cells != null)
{
// Gets the current state of the view
mxGraphView view = graph.View;
Dictionary<Object, mxCellState> states = view.States;
double oldScale = view.Scale;
// Keeps the existing translation as the cells might
// be aligned to the grid in a different way in a graph
// that has a translation other than zero
bool eventsEnabled = view.IsEventsEnabled;
// Disables firing of scale events so that there is no
// repaint or update of the original graph
view.IsEventsEnabled = false;
try
{
// TODO: Factor-out into mxTemporaryCellStates class
view.States = new Dictionary<Object, mxCellState>();
view.Scale = scale;
// Creates virtual parent state for validation
mxCellState state = view.CreateState(new mxCell());
// Validates the vertices and edges without adding them to
// the model so that the original cells are not modified
for (int i = 0; i < cells.Length; i++)
{
view.ValidateBounds(state, cells[i]);
}
for (int i = 0; i < cells.Length; i++)
{
view.ValidatePoints(state, cells[i]);
}
if (clip == null)
{
clip = graph.GetPaintBounds(cells);
}
if (clip != null && clip.Width > 0 && clip.Height > 0)
{
Rectangle rect = clip.GetRectangle();
canvas = factory.CreateCanvas(rect.Width + 1,
rect.Height + 1);
if (canvas != null)
{
double previousScale = canvas.Scale;
Point previousTranslate = canvas.Translate;
try
{
canvas.Translate = new Point(-rect.X, -rect.Y);
canvas.Scale = view.Scale;
for (int i = 0; i < cells.Length; i++)
{
graph.DrawCell(canvas, cells[i]);
}
}
finally
{
canvas.Scale = previousScale;
canvas.Translate = previousTranslate;
}
}
}
}
finally
{
view.Scale = oldScale;
view.States = states;
view.IsEventsEnabled = eventsEnabled;
}
}
return canvas;
}
/// <summary>
/// Creates an image for the given arguments.
/// </summary>
public static Image CreateImage(mxGraph graph, Object[] cells, double scale, Color? background,
bool antiAlias, mxRectangle clip)
{
return CreateImage(graph, cells, scale, background, antiAlias, clip, new mxGdiCanvas());
}
/// <summary>
/// Constructs a new view for the given graph.
/// </summary>
/// <param name="graph">Reference to the enclosing graph.</param>
public mxGraphView(mxGraph graph)
{
this.graph = graph;
}
