protected override void OnPaint(PaintEventArgs e)
{
var graphics = e.Graphics;
graphics.PageUnit = GraphicsUnit.Pixel;
var scrollPoint = AutoScrollPosition;
graphics.TranslateTransform(scrollPoint.X, scrollPoint.Y);
//Zoom
using (var matrix = graphics.Transform)
{
var graphicsContainer = graphics.BeginContainer();
graphics.SmoothingMode = Document.SmoothingMode;
graphics.PixelOffsetMode = Document.PixelOffsetMode;
graphics.CompositingQuality = Document.CompositionQuality;
graphics.ScaleTransform(Document.Zoom, Document.Zoom);
var clipRectangle = Gsc2Goc(e.ClipRectangle);
Document.DrawElements(graphics, clipRectangle);
if (!((_resizeAction != null) && _resizeAction.IsResizing))
{
Document.DrawSelections(graphics, e.ClipRectangle);
}
if (_isMultiSelection || _isAddSelection)
{
DrawSelectionRectangle(graphics);
}
if (_isAddLink)
{
_linkLine.CalcLink();
_linkLine.Draw(graphics);
}
if ((_resizeAction != null) && !((_moveAction != null) && _moveAction.IsMoving))
{
_resizeAction.DrawResizeCorner(graphics);
}
if (_mousePointerElement != null)
{
if (_mousePointerElement is IControllable)
{
var ctrl = ((IControllable)_mousePointerElement).GetController();
ctrl.DrawSelection(graphics);
}
}
graphics.EndContainer(graphicsContainer);
graphics.Transform = matrix;
}
base.OnPaint(e);
}
public void Paste()
{
const int pasteStep = 20;
_undo.Enabled = false;
var iData = Clipboard.GetDataObject();
var format = DataFormats.GetFormat("Diagram.NET Element Collection");
if (iData.GetDataPresent(format.Name))
{
IFormatter formatter = new BinaryFormatter();
Stream stream = (MemoryStream)iData.GetData(format.Name);
var elCol = (BaseElement[])formatter.Deserialize(stream);
stream.Close();
foreach (var el in elCol)
{
el.Location = new Point(el.Location.X + pasteStep, el.Location.Y + pasteStep);
}
Document.AddElements(elCol);
Document.ClearSelection();
Document.SelectElements(elCol);
}
_undo.Enabled = true;
AddUndo();
EndGeneralAction();
}
private void GetConnectors(Link link, out ConnectorElement startConnectorElement, out ConnectorElement endConnectorElement)
{
startConnectorElement = (ConnectorElement)Document.FindElement(new Point(link.StartPointX, link.StartPointY));
endConnectorElement = (ConnectorElement)Document.FindElement(new Point(link.EndPointX, link.EndPointY));
if (startConnectorElement == null || endConnectorElement == null)
{
var startNode = Document.Elements.GetArray().FirstOrDefault(n => n.Id == link.StartNodeId);
var endNode = Document.Elements.GetArray().FirstOrDefault(n => n.Id == link.EndNodeId);
if (startNode != null && endNode != null)
{
var listTuples = new List <LineVariantTuple>();
foreach (var connector1 in ((NodeElement)startNode).Connectors)
{
foreach (var connector2 in ((NodeElement)endNode).Connectors)
{
listTuples.Add(new LineVariantTuple
{
StartPoint = connector1.Location,
EndPoint = connector2.Location
});
}
}
var minLengthLine = listTuples.OrderBy(l => l.Length).FirstOrDefault();
if (minLengthLine != null)
{
startConnectorElement = (ConnectorElement)Document.FindElement(minLengthLine.StartPoint);
endConnectorElement = (ConnectorElement)Document.FindElement(minLengthLine.EndPoint);
}
}
}
}
private void EndAddElement(Rectangle selectionRectangle)
{
BaseElement el;
switch (Document.ElementType)
{
case ElementType.Rectangle:
el = new RectangleElement(selectionRectangle);
break;
case ElementType.RectangleNode:
el = new RectangleNode(selectionRectangle);
break;
case ElementType.Ellipse:
el = new EllipseElement(selectionRectangle);
break;
case ElementType.EllipseNode:
el = new EllipseNode(selectionRectangle);
break;
case ElementType.CommentBox:
el = new CommentBoxElement(selectionRectangle);
break;
default:
el = new RectangleNode(selectionRectangle);
break;
}
Document.AddElement(el);
Document.Action = DesignerAction.Select;
}
public void OpenFile(string fileName, FileExtensionType type)
{
var document = FileManager.Open(fileName, type);
CreateDocument(document);
RestartInitValues();
Document.SetCurrentId();
RecreateEventsHandlers();
Invalidate();
}
private void StartAddElement(Point mousePoint)
{
Document.ClearSelection();
//Change Selection Area Color
_selectionArea.FillColor = Color.LightSteelBlue;
_isAddSelection = true;
_selectionArea.Location = mousePoint;
_selectionArea.Size = new Size(0, 0);
}
private void EndAddLink()
{
if (_connEnd != _linkLine.Connector2)
{
_linkLine.Connector1.RemoveLink(_linkLine);
_linkLine = Document.AddLink(_linkLine.Connector1, _linkLine.Connector2);
OnElementConnected(new ElementConnectEventArgs(_linkLine.Connector1.ParentElement, _linkLine.Connector2.ParentElement, _linkLine));
}
_connStart = null;
_connEnd = null;
_linkLine = null;
}
public void RestartInitValues()
{
// Reinitialize status
_moveAction = null;
_isMultiSelection = false;
_isAddSelection = false;
_isAddLink = false;
_changed = false;
_connStart = null;
_selectionArea.FillColor = SystemColors.Control;
Document.CalcWindow(true);
}
public void SaveDb()
{
if (string.IsNullOrEmpty(Document.Name))
{
var form = new InputForm();
if (form.ShowDialog() == DialogResult.OK)
{
Document.Name = form.DocumentName;
}
}
if (!string.IsNullOrEmpty(Document.Name))
{
if (!DataBaseManager.IsDocumentExists(Document.Name) ||
MessageBox.Show(Strings.ReplaceInDbText, Strings.ReplaceInDbTitle,
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
var document = Document.GetDocument();
DataBaseManager.SaveDocument(document);
MessageBox.Show(Strings.SuccessSaveToDbText, Strings.ApplicationTitle, MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
}
}
private void StartSelectElements(BaseElement selectedElement, Point mousePoint)
{
// Vefiry if element is in selection
if (!Document.SelectedElements.Contains(selectedElement))
{
//Clear selection and add new element to selection
Document.ClearSelection();
Document.SelectElement(selectedElement);
}
_changed = false;
_moveAction = new MoveAction();
MoveAction.OnElementMovingDelegate onElementMovingDelegate = OnElementMoving;
_moveAction.Start(mousePoint, Document, onElementMovingDelegate);
// Get Controllers
_controllers = new IController[Document.SelectedElements.Count];
for (var i = Document.SelectedElements.Count - 1; i >= 0; i--)
{
if (Document.SelectedElements[i] is IControllable)
{
// Get General Controller
_controllers[i] = ((IControllable)Document.SelectedElements[i]).GetController();
}
else
{
_controllers[i] = null;
}
}
_resizeAction = new ResizeAction();
_resizeAction.Select(Document);
}
public void CreateDocument(DomainDocument domainDocument)
{
Document = new Document
{
Id = domainDocument.Id,
Name = domainDocument.Name,
WindowSize = Size
};
foreach (var node in domainDocument.Nodes)
{
var rectangle = new Rectangle(node.X, node.Y, node.Width, node.Height);
switch (node.Type)
{
case NodeType.Concept:
var rectangleNode = new RectangleNode(rectangle)
{
Id = node.Id, Label = new LabelElement {
Text = node.Label
}
};
rectangleNode.Label.PositionBySite(rectangleNode);
Document.AddElement(rectangleNode);
break;
case NodeType.Relation:
var ellipseNode = new EllipseNode(rectangle)
{
Id = node.Id, Label = new LabelElement {
Text = node.Label
}
};
ellipseNode.Label.PositionBySite(ellipseNode);
Document.AddElement(ellipseNode);
break;
case NodeType.Comment:
var commentBoxElement = new CommentBoxElement(rectangle)
{
Id = node.Id, Label = new LabelElement {
Text = node.Label
}
};
commentBoxElement.Label.PositionBySite(commentBoxElement);
Document.AddElement(commentBoxElement);
break;
}
}
foreach (var link in domainDocument.Links)
{
ConnectorElement startConnectorElement, endConnectorElement;
GetConnectors(link, out startConnectorElement, out endConnectorElement);
if (startConnectorElement != null && endConnectorElement != null)
{
var linkElement = new StraightLinkElement(startConnectorElement, endConnectorElement)
{
Id = link.Id,
Label = new LabelElement
{
Text = link.Label
}
};
linkElement.Label.Size = EditLabelAction.GetTextSize(linkElement);
linkElement.Label.PositionBySite(linkElement);
Document.Elements.Add(linkElement);
}
}
Document.SetCurrentId();
RecreateEventsHandlers();
}
public void SaveFile(string fileName, FileExtensionType type)
{
FileManager.Save(fileName, Document.GetDocument(), type);
}
protected override void OnMouseMove(MouseEventArgs e)
{
if (e.Button == MouseButtons.None)
{
Cursor = Cursors.Arrow;
var mousePoint = Gsc2Goc(new Point(e.X, e.Y));
if ((_resizeAction != null) &&
((Document.Action == DesignerAction.Select) ||
((Document.Action == DesignerAction.Connect) &&
_resizeAction.IsResizingLink)))
{
Cursor = _resizeAction.UpdateResizeCornerCursor(mousePoint);
}
if (Document.Action == DesignerAction.Connect)
{
var mousePointerElementTMP = Document.FindElement(mousePoint);
if (_mousePointerElement != mousePointerElementTMP)
{
if (mousePointerElementTMP is ConnectorElement)
{
_mousePointerElement = mousePointerElementTMP;
_mousePointerElement.Invalidate();
Invalidate(_mousePointerElement, true);
}
else if (_mousePointerElement != null)
{
_mousePointerElement.Invalidate();
Invalidate(_mousePointerElement, true);
_mousePointerElement = null;
}
}
}
else
{
Invalidate(_mousePointerElement, true);
_mousePointerElement = null;
}
}
if (e.Button == MouseButtons.Left)
{
var dragPoint = Gsc2Goc(new Point(e.X, e.Y));
if ((_resizeAction != null) && _resizeAction.IsResizing)
{
_resizeAction.Resize(dragPoint);
Invalidate();
}
if ((_moveAction != null) && _moveAction.IsMoving)
{
_moveAction.Move(dragPoint);
Invalidate();
}
if (_isMultiSelection || _isAddSelection)
{
var p = Gsc2Goc(new Point(e.X, e.Y));
_selectionArea.Size = new Size(p.X - _selectionArea.Location.X, p.Y - _selectionArea.Location.Y);
_selectionArea.Invalidate();
Invalidate(_selectionArea, true);
}
if (_isAddLink)
{
_selectedElement = Document.FindElement(dragPoint);
if (_selectedElement is ConnectorElement &&
Document.CanAddLink(_connStart, (ConnectorElement)_selectedElement))
{
_linkLine.Connector2 = (ConnectorElement)_selectedElement;
}
else
{
_linkLine.Connector2 = _connEnd;
}
var moveController = (IMoveController)((IControllable)_connEnd).GetController();
moveController.Move(dragPoint);
base.Invalidate();
}
}
base.OnMouseMove(e);
}
protected override void OnMouseDown(MouseEventArgs e)
{
Point mousePoint;
//ShowSelectionCorner((document.Action==DesignerAction.Select));
switch (Document.Action)
{
// SELECT
case DesignerAction.Connect:
case DesignerAction.Select:
if (e.Button == MouseButtons.Left)
{
mousePoint = Gsc2Goc(new Point(e.X, e.Y));
//Verify resize action
StartResizeElement(mousePoint);
if ((_resizeAction != null) && _resizeAction.IsResizing)
{
break;
}
//Verify LabelElement editing
if (_isEditLabel)
{
EndEditLabel();
}
// Search element by click
_selectedElement = Document.FindElement(mousePoint);
if (_selectedElement != null)
{
//Events
var eventMouseDownArg = new ElementMouseEventArgs(_selectedElement, e.X, e.Y);
OnElementMouseDown(eventMouseDownArg);
// Double-click to edit Label
if ((e.Clicks == 2) && _selectedElement is ILabelElement)
{
StartEditLabel();
break;
}
// Element selected
if (_selectedElement is ConnectorElement)
{
StartAddLink((ConnectorElement)_selectedElement, mousePoint);
_selectedElement = null;
}
else
{
StartSelectElements(_selectedElement, mousePoint);
}
}
else
{
// If click is on neutral area, clear selection
Document.ClearSelection();
var p = Gsc2Goc(new Point(e.X, e.Y));
;
_isMultiSelection = true;
_selectionArea.Location = p;
_selectionArea.Size = new Size(0, 0);
}
base.Invalidate();
}
break;
// ADD
case DesignerAction.Add:
if (e.Button == MouseButtons.Left)
{
mousePoint = Gsc2Goc(new Point(e.X, e.Y));
StartAddElement(mousePoint);
}
break;
// DELETE
case DesignerAction.Delete:
if (e.Button == MouseButtons.Left)
{
mousePoint = Gsc2Goc(new Point(e.X, e.Y));
DeleteElement(mousePoint);
}
break;
}
base.OnMouseDown(e);
}
private void DeleteSelectedElements()
{
Document.DeleteSelectedElements();
}
private void DeleteElement(Point mousePoint)
{
Document.DeleteElement(mousePoint);
_selectedElement = null;
Document.Action = DesignerAction.Select;
}
private void EndSelectElements(Rectangle selectionRectangle)
{
Document.SelectElements(selectionRectangle);
}
