private void ButtonAtom_Click(object sender, EventArgs e)
{
SelectedTool = DiagramAction.PlaceAtom;
MessageBoxText = "Atom tool selected.";
AtomSelectionForm sForm = new AtomSelectionForm();
sForm.ShowDialog();
var par = CurrentObject.GetInternalParameters();
MessageBoxText = par["Symbol"] + " selected.";
}
// When clicking on the diagram.
private void DiagramView_Click(object sender, EventArgs e)
{
MouseEventArgs args = (MouseEventArgs)e;
Point clickLocation = args.Location;
// Grid snap for atoms and texts.
if (GridSettingForm.Settings.GridWidth > 0 && GridSettingForm.Settings.GridHeight > 0 &&
(new DiagramAction[] {
DiagramAction.PlaceAtom, DiagramAction.PlaceText, DiagramAction.PlaceAtomCarbon, DiagramAction.PlaceAtomHydrogen, DiagramAction.PlaceAtomNitrogen, DiagramAction.PlaceAtomOxygen
}.Contains(SelectedTool)))
{
// Get grid settings from settings object.
int w = GridSettingForm.Settings.GridWidth, h = GridSettingForm.Settings.GridHeight;
int xo = GridSettingForm.Settings.GridXOffset, yo = GridSettingForm.Settings.GridYOffset;
int ux = clickLocation.X - xo, uy = clickLocation.Y - yo;
// Find closest grid intersections.
int[][] pairs =
{
new int[] { ux - (ux % w), uy - (uy % h) },
new int[] { ux + (w - (ux % w)), uy - (uy % h) },
new int[] { ux - (ux % w), uy + (h - (uy % h)) },
new int[] { ux + (w - (ux % w)), uy + (h - (uy % h)) }
};
// Get distances to intersections.
double[] distances = new double[pairs.Length];
for (int i = 0; i < pairs.Length; i++)
{
int dx, dy;
dx = pairs[i][0] - ux;
dy = pairs[i][1] - uy;
distances[i] = Math.Sqrt(dx * dx + dy * dy); // via Pythagoras' Theorem.
}
// Get minimum distance and index of minimum distance.
int mindex;
double minstance;
mindex = 0;
minstance = distances[0];
for (int i = 1; i < distances.Length; i++)
{
if (distances[i] < minstance)
{
minstance = distances[i];
mindex = i;
}
}
// Move selection to placement.
clickLocation.X = pairs[mindex][0] + xo;
clickLocation.Y = pairs[mindex][1] + yo;
}
// Finding nearby objects for object anchoring.
List <DiagramObject> objects = new List <DiagramObject>();
List <DiagramObject> atoms = new List <DiagramObject>();
List <DiagramObject> texts = new List <DiagramObject>();
foreach (DiagramObject obj in CurrentDiagram.Objects)
{
if (obj.IsMouseIntersect(clickLocation))
{
objects.Add(obj);
}
}
foreach (DiagramObject obj in objects)
{
if (obj.ObjectID == DiagramObject.ObjectTypeID.Atom)
{
atoms.Add(obj);
}
}
foreach (DiagramObject obj in objects)
{
if (obj.ObjectID == DiagramObject.ObjectTypeID.Text)
{
texts.Add(obj);
}
}
int anchor = -1; // For object anchoring.
try
{
// CurrentDiagram.AddDiagramObject(new Atom("C", clickLocation.X, clickLocation.Y));
switch (SelectedTool)
{
case DiagramAction.Select:
foreach (DiagramObject obj in objects)
{
if (args.Button == MouseButtons.Right)
{
CurrentDiagram.RemoveDiagramObject(obj.DiagramID);
MessageBoxText = $"Object of ID {obj.DiagramID} deleted.";
break;
}
else
{
if (SelectedObject != obj)
{
SelectedObject = obj;
EditingForm eForm = new EditingForm(obj);
eForm.Show();
break;
}
}
}
break;
case DiagramAction.PlaceAtom:
var par = CurrentObject.GetInternalParameters();
par["X"] = (float)clickLocation.X;
par["Y"] = (float)clickLocation.Y;
Atom a = new Atom();
a.EditInternalParameters(par);
CurrentDiagram.AddDiagramObject(a);
break;
case DiagramAction.PlaceAtomCarbon:
CurrentDiagram.AddDiagramObject(new Atom("C", clickLocation.X, clickLocation.Y));
break;
case DiagramAction.PlaceAtomNitrogen:
CurrentDiagram.AddDiagramObject(new Atom("N", clickLocation.X, clickLocation.Y, new SKColor(0, 128, 0)));
break;
case DiagramAction.PlaceAtomOxygen:
CurrentDiagram.AddDiagramObject(new Atom("O", clickLocation.X, clickLocation.Y, new SKColor(255, 0, 0)));
break;
case DiagramAction.PlaceAtomHydrogen:
CurrentDiagram.AddDiagramObject(new Atom("H", clickLocation.X, clickLocation.Y, new SKColor(128, 128, 128)));
break;
case DiagramAction.PlaceSingleBond:
if (atoms.Count > 0)
{
anchor = atoms[0].DiagramID;
}
CurrentObject = new Bond(clickLocation.X, clickLocation.Y, 0, 0, 1.5f, null, Bond.BondType.Single, Bond.BondStyle.Plain, anchor);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceBondEnd;
break;
case DiagramAction.PlaceDoubleBond:
if (atoms.Count > 0)
{
anchor = atoms[0].DiagramID;
}
CurrentObject = new Bond(clickLocation.X, clickLocation.Y, 0, 0, 1.5f, null, Bond.BondType.Double, Bond.BondStyle.Plain, anchor);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceBondEnd;
break;
case DiagramAction.PlaceTripleBond:
if (atoms.Count > 0)
{
anchor = atoms[0].DiagramID;
}
CurrentObject = new Bond(clickLocation.X, clickLocation.Y, 0, 0, 1.5f, null, Bond.BondType.Triple, Bond.BondStyle.Plain, anchor);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceBondEnd;
break;
case DiagramAction.PlaceAromaticBond:
if (atoms.Count > 0)
{
anchor = atoms[0].DiagramID;
}
CurrentObject = new Bond(clickLocation.X, clickLocation.Y, 0, 0, 1.5f, null, Bond.BondType.Aromatic, Bond.BondStyle.Plain, anchor);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceBondEnd;
break;
case DiagramAction.PlaceBondEnd:
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Bond)
{
int ach = ((Bond)CurrentObject).AnchorID1;
if (atoms.Count > 0)
{
foreach (var atom in atoms)
{
if (atom.DiagramID != ach)
{
anchor = atom.DiagramID;
break;
}
else
{
anchor = -1;
}
}
}
var parameters = CurrentObject.GetInternalParameters();
parameters["X2"] = (float)clickLocation.X;
parameters["Y2"] = (float)clickLocation.Y;
parameters["AnchorID2"] = anchor;
CurrentObject.EditInternalParameters(parameters);
CurrentDiagram.AddDiagramObject(CurrentObject);
ToolGroup.Enabled = true;
switch (((Bond)CurrentObject).TypeOfBond)
{
case Bond.BondType.Single:
SelectedTool = DiagramAction.PlaceSingleBond;
break;
case Bond.BondType.Double:
SelectedTool = DiagramAction.PlaceDoubleBond;
break;
case Bond.BondType.Triple:
SelectedTool = DiagramAction.PlaceTripleBond;
break;
case Bond.BondType.Aromatic:
SelectedTool = DiagramAction.PlaceAromaticBond;
break;
}
// CurrentObject = null;
}
break;
case DiagramAction.PlaceLineStart:
CurrentObject = new Line(clickLocation.X, clickLocation.Y, 0, 0, null, 1.5f, null, Line.LineType.Line);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceLineEnd;
break;
case DiagramAction.PlaceLineEnd:
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
parameters["X2"] = (float)clickLocation.X;
parameters["Y2"] = (float)clickLocation.Y;
CurrentObject.EditInternalParameters(parameters);
CurrentDiagram.AddDiagramObject(CurrentObject);
ToolGroup.Enabled = true;
SelectedTool = DiagramAction.PlaceLineStart;
// CurrentObject = null;
}
break;
case DiagramAction.PlaceCurveStart:
CurrentObject = new Line(clickLocation.X, clickLocation.Y, 0, 0, null, 1.5f, null, Line.LineType.Curve, Line.LineStyle.Plain);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceCurveControlPoint;
break;
case DiagramAction.PlaceCurveControlPoint:
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
List <float[]> cpts = (List <float[]>)parameters["ControlPoints"];
cpts.Add(new float[] { clickLocation.X, clickLocation.Y });
CurrentObject.EditInternalParameters(parameters);
if (cpts.Count == 2)
{
SelectedTool = DiagramAction.PlaceCurveEnd;
}
}
break;
case DiagramAction.PlaceCurveEnd:
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
parameters["X2"] = (float)clickLocation.X;
parameters["Y2"] = (float)clickLocation.Y;
CurrentObject.EditInternalParameters(parameters);
CurrentDiagram.AddDiagramObject(CurrentObject);
ToolGroup.Enabled = true;
SelectedTool = DiagramAction.PlaceCurveStart;
// CurrentObject = null;
}
break;
case DiagramAction.PlaceStraightArrowStart:
CurrentObject = new Line(clickLocation.X, clickLocation.Y, 0, 0, null, 1.5f, null, Line.LineType.Line, Line.LineStyle.Plain, Line.EndType.Plain, Line.EndType.Arrow);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceStraightArrowEnd;
break;
case DiagramAction.PlaceStraightArrowEnd:
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
parameters["X2"] = (float)clickLocation.X;
parameters["Y2"] = (float)clickLocation.Y;
CurrentObject.EditInternalParameters(parameters);
CurrentDiagram.AddDiagramObject(CurrentObject);
ToolGroup.Enabled = true;
SelectedTool = DiagramAction.PlaceStraightArrowStart;
// CurrentObject = null;
}
break;
case DiagramAction.PlaceCurvedArrowStart:
CurrentObject = new Line(clickLocation.X, clickLocation.Y, 0, 0, null, 1.5f, null, Line.LineType.Curve, Line.LineStyle.Plain, Line.EndType.Plain, Line.EndType.Arrow);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceCurvedArrowControlPoint;
break;
case DiagramAction.PlaceCurvedArrowControlPoint:
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
List <float[]> cpts = (List <float[]>)parameters["ControlPoints"];
cpts.Add(new float[] { clickLocation.X, clickLocation.Y });
CurrentObject.EditInternalParameters(parameters);
if (cpts.Count == 2)
{
SelectedTool = DiagramAction.PlaceCurvedArrowEnd;
}
}
break;
case DiagramAction.PlaceCurvedArrowEnd:
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
parameters["X2"] = (float)clickLocation.X;
parameters["Y2"] = (float)clickLocation.Y;
CurrentObject.EditInternalParameters(parameters);
CurrentDiagram.AddDiagramObject(CurrentObject);
ToolGroup.Enabled = true;
SelectedTool = DiagramAction.PlaceCurvedArrowStart;
// CurrentObject = null;
}
break;
case DiagramAction.ChargeIncrease:
foreach (DiagramObject obj in objects)
{
if (obj.ObjectID == DiagramObject.ObjectTypeID.Atom)
{
var p = ((Atom)obj).GetInternalParameters();
p["Charge"] = (int)p["Charge"] + 1;
obj.EditInternalParameters(p);
break;
}
}
break;
case DiagramAction.ChargeDecrease:
foreach (DiagramObject obj in objects)
{
if (obj.ObjectID == DiagramObject.ObjectTypeID.Atom)
{
var p = ((Atom)obj).GetInternalParameters();
p["Charge"] = (int)p["Charge"] - 1;
obj.EditInternalParameters(p);
break;
}
}
break;
case DiagramAction.PlaceSharpLineStart:
CurrentObject = new Line(clickLocation.X, clickLocation.Y, 0, 0, null, 1.5f, null, Line.LineType.Sharp, Line.LineStyle.Plain);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceSharpLineControlPoint;
break;
case DiagramAction.PlaceSharpLineControlPoint:
if (args.Button == MouseButtons.Right)
{
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
parameters["X2"] = (float)clickLocation.X;
parameters["Y2"] = (float)clickLocation.Y;
CurrentObject.EditInternalParameters(parameters);
CurrentDiagram.AddDiagramObject(CurrentObject);
ToolGroup.Enabled = true;
}
SelectedTool = DiagramAction.PlaceSharpLineStart;
}
else
{
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
List <float[]> cpts = (List <float[]>)parameters["ControlPoints"];
cpts.Add(new float[] { clickLocation.X, clickLocation.Y });
CurrentObject.EditInternalParameters(parameters);
}
}
break;
case DiagramAction.PlaceSharpArrowStart:
CurrentObject = new Line(clickLocation.X, clickLocation.Y, 0, 0, null, 1.5f, null, Line.LineType.Sharp, Line.LineStyle.Plain, Line.EndType.Plain, Line.EndType.Arrow);
ToolGroup.Enabled = false;
SelectedTool = DiagramAction.PlaceSharpArrowControlPoint;
break;
case DiagramAction.PlaceSharpArrowControlPoint:
if (args.Button == MouseButtons.Right)
{
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
parameters["X2"] = (float)clickLocation.X;
parameters["Y2"] = (float)clickLocation.Y;
CurrentObject.EditInternalParameters(parameters);
CurrentDiagram.AddDiagramObject(CurrentObject);
ToolGroup.Enabled = true;
}
SelectedTool = DiagramAction.PlaceSharpArrowStart;
}
else
{
if (CurrentObject.ObjectID == DiagramObject.ObjectTypeID.Line)
{
var parameters = CurrentObject.GetInternalParameters();
List <float[]> cpts = (List <float[]>)parameters["ControlPoints"];
cpts.Add(new float[] { clickLocation.X, clickLocation.Y });
CurrentObject.EditInternalParameters(parameters);
}
}
break;
case DiagramAction.PlaceText:
CurrentDiagram.AddDiagramObject(new Text("Edit object to edit text.", clickLocation.X, clickLocation.Y));
break;
default:
break;
}
UpdateScreen(true);
} catch (Exception err)
{
ErrorLogger.ShowErrorMessageBox(err);
}
}