private void DbgPrintProperties(View view, string CurrentIndent, ref string visualTree)
{
if (view is StackLayout)
{
StackLayout vw = (StackLayout)view;
visualTree += string.Format("{0}Orientation=\"{1}\" HorizontalOptions=\"{2}\" VerticalOptions=\"{3}\"",
CurrentIndent, vw.Orientation.ToString(), LayoutToString(vw.HorizontalOptions), LayoutToString(vw.VerticalOptions));
}
else if (view is SuperscriptText)
{
SuperscriptText vw = (SuperscriptText)view;
visualTree += string.Format("{0}Text=\"{1}\"",
CurrentIndent, vw.Text);
//, vw.BackgroundColor, vw.TextColor
}
else if (view is Label)
{
Label vw = (Label)view;
visualTree += string.Format("{0}Text=\"{1}\"",
CurrentIndent, vw.Text);
}
else if (view is BoxView)
{
BoxView vw = (BoxView)view;
visualTree += string.Format("{0}HeightRequest=\"{1}\" HorizontalOptions=\"{2}\"",
CurrentIndent, vw.HeightRequest, LayoutToString(vw.HorizontalOptions));
//Color={1} , vw.Color
}
else
{
throw new ArgumentOutOfRangeException();
}
}
// ------------------------
private View DisplayFunctionCalc(FunctionCalc expr, bool bSkipOpBrackets, Function lastFn)
{
bool bThisSkipOpBrackets = bSkipOpBrackets;
bool bNextSkipOpBrackets = false;
StackLayout stackLayout = new StackLayout
{
Orientation = StackOrientation.Horizontal,
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
};
Function fn = expr.Function;
if (fn is FnEquals)
{
bNextSkipOpBrackets = true;
}
if (fn.FuncLayout == FuncLayout.FuncLayout)
{
stackLayout.Children.Add(new FuncNameResultLabel
{
Text = fn.Symbol,
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
stackLayout.Children.Add(new OpenBracketResultLabel
{
Text = "(",
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
AddExpressionInputs(stackLayout, expr.Inputs);
stackLayout.Children.Add(new CloseBracketResultLabel
{
Text = ")",
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
}
else if (fn.FuncLayout == FuncLayout.Op_Term)
{
bThisSkipOpBrackets = true;
if (!bThisSkipOpBrackets)
{
stackLayout.Children.Add(new OpenBracketResultLabel
{
Text = "(",
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
}
stackLayout.Children.Add(new OpResultLabel
{
Text = fn.Symbol,
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
stackLayout.Children.Add(DisplayMathExpression(expr.Inputs[0], bSkipOpBrackets: bNextSkipOpBrackets, lastFn: fn));
if (!bThisSkipOpBrackets)
{
stackLayout.Children.Add(new CloseBracketResultLabel
{
Text = ")",
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
}
}
else if (fn.FuncLayout == FuncLayout.Term_Op_Term)
{
if (fn == lastFn) // is Functions.FnMultiply)
{
bThisSkipOpBrackets = true;
}
if (!bThisSkipOpBrackets)
{
stackLayout.Children.Add(new OpenBracketResultLabel
{
Text = "(",
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
}
stackLayout.Children.Add(DisplayMathExpression(expr.Inputs[0], bSkipOpBrackets: bNextSkipOpBrackets, lastFn: fn));
stackLayout.Children.Add(new OpResultLabel
{
Text = fn.Symbol,
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
stackLayout.Children.Add(DisplayMathExpression(expr.Inputs[1], bSkipOpBrackets: bNextSkipOpBrackets, lastFn: fn));
if (!bThisSkipOpBrackets)
{
stackLayout.Children.Add(new CloseBracketResultLabel
{
Text = ")",
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
}
}
else if (fn.FuncLayout == FuncLayout.Term_OverOp_Term)
{
if (!(fn is FnDivide))
{
// TODO: Equations: What else could it be? What do we show instead of a line?
}
if (!bThisSkipOpBrackets)
{
stackLayout.Children.Add(new OpenBracketResultLabel
{
Text = "(",
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
}
StackLayout slVert = new StackLayout
{
Orientation = StackOrientation.Vertical,
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
};
stackLayout.Children.Add(slVert);
View vwTop = DisplayMathExpression(expr.Inputs[0], bSkipOpBrackets: bNextSkipOpBrackets, lastFn: fn);
slVert.Children.Add(vwTop);
BoxView boxView = new BoxView
{
Color = (Color)Application.Current.Resources[App.Key_TextColor],
HeightRequest = _lineDepth,
VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
};
slVert.Children.Add(boxView);
View vwBottom = DisplayMathExpression(expr.Inputs[1], bSkipOpBrackets: bNextSkipOpBrackets, lastFn: fn);
slVert.Children.Add(vwBottom);
MaxWidthBinder maxWidthBinder = new MaxWidthBinder(new List <View> {
vwTop, vwBottom
});
boxView.SetBinding(BoxView.WidthRequestProperty, new Binding()
{
Source = maxWidthBinder, Path = "MaxWidth"
});
if (!bThisSkipOpBrackets)
{
stackLayout.Children.Add(new CloseBracketResultLabel
{
Text = ")",
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
SingleResult = expr
});
}
}
else if (fn.FuncLayout == FuncLayout.Term_Superscript_Term)
{
StackLayout slHoriz = new StackLayout
{
Orientation = StackOrientation.Horizontal,
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
};
stackLayout.Children.Add(slHoriz);
View vw = DisplayMathExpression(expr.Inputs[0], bSkipOpBrackets: bNextSkipOpBrackets, lastFn: fn);
slHoriz.Children.Add(vw);
SuperscriptText ssText = new SuperscriptText()
{
Text = FunctionCalc.MathExpressionAsText(expr.Inputs[1]), // Not perfect for a complex exponent....
//VerticalOptions = LayoutOptions.Center, HorizontalOptions = LayoutOptions.Center,
BackgroundColor = (Color)Application.Current.Resources[App.Key_BackgroundColor],
TextColor = (Color)Application.Current.Resources[App.Key_TextColor],
};
ssText.SetBinding(SuperscriptText.FontSizeProperty, new Binding()
{
Source = vw, Path = "FontSize"
});
slHoriz.Children.Add(ssText);
}
return(stackLayout);
}