public void OnOver(DraggableControl c)
{
if (parent.CanPutElement(this, c))
{
BackColor = ColorSettings.Get("ArgumentPlaceholderOnOver");
}
}
public bool PutElement(ArgumentPlaceholder p, DraggableControl el)
{
if (!CanPutElement(p, el))
{
return(false);
}
if (p == condPlaceholder)
{
SetCondElement(el);
return(true);
}
var pos = placeholders.IndexOf(p);
controlStatements.Insert(pos, el);
el.Parent = this;
el.EParent = this;
placeholders.Insert(pos, new ArgumentPlaceholder(this)
{
Parent = this
});
return(true);
}
public void OnChildDisconnect(DraggableControl c)
{
if (arg == c)
{
arg = null;
Controls.Remove(c);
}
}
public VBinaryOp(IFunctionCall functionCall) : this(functionCall.function)
{
firstArg = VElementBuilder.Create(functionCall.arguments.FirstOrDefault());
SetFirstArg(firstArg);
secondArg = VElementBuilder.Create(functionCall.arguments.Skip(1).FirstOrDefault());
SetSecondArg(secondArg);
UpdateSize();
}
public void OnChildDisconnect(DraggableControl c)
{
var pos = vstatements.IndexOf(c);
Controls.Remove(vstatements[pos]);
Controls.Remove(placeholders[pos]);
vstatements.RemoveAt(pos);
placeholders.RemoveAt(pos);
}
private void OnAddFunctionToWorkspace(DraggableControl element)
{
workPanel.Controls.Add(element);
(element as IFunctionDefinition).With(_ =>
{
currentNamespace.functions.Add(_);
createdFunsPanel.AddFunBtn(_);
});
}
public void OnOver(DraggableControl c)
{
// не давем удалять главную функцию
if (IsMainFun(c))
{
return;
}
SetImage(openTrash);
}
public bool CanPutElement(ArgumentPlaceholder p, DraggableControl el)
{
if (p == condPlaceholder)
{
return(el is IExpression);
}
return(el is IStatement && placeholders.IndexOf(p) >= 0);
}
public bool PutElement(ArgumentPlaceholder p, DraggableControl el)
{
if (!CanPutElement(p, el))
{
return(false);
}
SetRetExpression(el);
return(true);
}
private void SetCondElement(DraggableControl el)
{
condArg = el;
if (el == null)
{
return;
}
condArg.Parent = this;
condArg.EParent = this;
Hide(condPlaceholder);
}
private void SetExpression(DraggableControl el)
{
arg = el;
if (el == null)
{
return;
}
arg.Parent = this;
arg.EParent = this;
Hide(argPlaceHolder);
}
private void SetVariableRef(DraggableControl el)
{
varRef = (VVariableRef)el;
if (el == null)
{
return;
}
varRef.Parent = this;
varRef.EParent = this;
Hide(varPlaceHolder);
}
private void SetFirstArg(DraggableControl el)
{
firstArg = el;
if (el == null)
{
return;
}
firstArg.Parent = this;
firstArg.EParent = this;
Hide(firstArgPlaceHolder);
}
private void SetSecondArg(DraggableControl el)
{
secondArg = el;
if (el == null)
{
return;
}
secondArg.Parent = this;
secondArg.EParent = this;
Hide(secondArgPlaceHolder);
}
public bool OnDrop(DraggableControl el)
{
// не давем удалять главную функцию
if (IsMainFun(el))
{
return(false);
}
onElementRemove(el);
el.Parent = null;
ResetColor();
return(true);
}
public void OnChildDisconnect(DraggableControl c)
{
if (firstArg == c)
{
firstArg = null;
}
if (secondArg == c)
{
secondArg = null;
}
Controls.Remove(c);
}
public void OnChildDisconnect(DraggableControl c)
{
if (condArg == c)
{
condArg = null;
}
else
{
var pos = controlStatements.IndexOf(c);
Controls.Remove(placeholders[pos]);
controlStatements.RemoveAt(pos);
placeholders.RemoveAt(pos);
}
Controls.Remove(c);
}
public bool PutElement(ArgumentPlaceholder p, DraggableControl el)
{
if (!CanPutElement(p, el))
{
return(false);
}
if (p == argPlaceHolder)
{
SetExpression(el);
}
else
{
SetVariableRef(el);
}
return(true);
}
public bool CanPutElement(ArgumentPlaceholder p, DraggableControl el)
{
if (!(el is IExpression))
{
return(false);
}
if (p == firstArgPlaceHolder && firstArg == null)
{
return(true);
}
if (p == secondArgPlaceHolder && secondArg == null)
{
return(true);
}
return(false);
}
public void AddExpression(DraggableControl expr)
{
expr.Parent = this;
expr.EParent = this;
if (!controlStatements.Any())
{
expr.Location = new Point(Const.TAB_SIZE, Const.HEADER_SIZE);
}
else
{
var lastExpr = controlStatements.Last();
expr.Location = new Point(Const.TAB_SIZE, lastExpr.Location.Y + lastExpr.Size.Height + 2);
}
controlStatements.Add(expr);
placeholders.Add(
new ArgumentPlaceholder(this).With(_ => { _.Parent = this; }));
this.UpdateRecSize();
}
/// <summary>
/// Вызывается плейсхолдером p при попытке заменить плейсходер выражением el
/// </summary>
public bool PutElement(ArgumentPlaceholder p, DraggableControl el)
{
if (!CanPutElement(p, el))
{
return(false);
}
if (p == firstArgPlaceHolder && firstArg == null)
{
SetFirstArg(el);
return(true);
}
if (p == secondArgPlaceHolder && secondArg == null)
{
SetSecondArg(el);
return(true);
}
return(false);
}
public bool CanPutElement(ArgumentPlaceholder p, DraggableControl el)
{
return(!IsMainFun(el));
}
public void OnLeave(DraggableControl c)
{
SetImage(closedTrash);
}
public bool CanPutElement(ArgumentPlaceholder p, DraggableControl el)
{
return(p == argPlaceHolder && el is IExpression ||
p == varPlaceHolder && el is VVariableRef);
}
private bool IsMainFun(DraggableControl el)
{
return((el is VFunction) && (el as VFunction).name == Const.MainFunName);
}
public bool CanPutElement(ArgumentPlaceholder p, DraggableControl el)
{
return(el is IStatement && placeholders.Contains(p));
}
public bool OnDrop(DraggableControl el)
{
return(parent.PutElement(this, el));
}
public bool PutElement(ArgumentPlaceholder p, DraggableControl el)
{
return(true);
}
public void OnChildDisconnect(DraggableControl c)
{
}
public void OnLeave(DraggableControl c)
{
ResetColor();
}
