protected static Color SetColorAccToState(FunctionEditState _state)
{
switch (_state)
{
case FunctionEditState.IS_BEING_DRAWIN:
return(Colors.Black);
case FunctionEditState.SELECTED:
return(Colors.OrangeRed);
default:
return(Colors.DimGray);
}
}
protected void DrawText(double _x, double _y, int _tag, string _content, FunctionEditState _state = FunctionEditState.REGULAR)
{
// scale input for drawing on the canvas
double x_scaled = (_x - this.xs[0]) * this.fact_x;
double y_scaled = this.canvas.Height - (_y - this.ys[0]) * this.fact_y;
TextBlock tb = new TextBlock();
tb.Height = 20;
tb.Width = 60;
tb.HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
tb.VerticalAlignment = System.Windows.VerticalAlignment.Top;
tb.Margin = new Thickness(x_scaled - 60, y_scaled - 20, 0, 0);
tb.Foreground = new SolidColorBrush(MValueFunct2DBase.SetColorAccToState(_state));
tb.Tag = _tag;
tb.Text = _content;
this.canvas.Children.Add(tb);
}
protected void DrawPoint(double _x, double _y, int _tag, FunctionEditState _state = FunctionEditState.REGULAR)
{
// scale input for drawing on the canvas
double x_scaled = (_x - this.xs[0]) * this.fact_x;
double y_scaled = this.canvas.Height - (_y - this.ys[0]) * this.fact_y;
Rectangle rect = new Rectangle();
rect.Height = 6;
rect.Width = 6;
rect.HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
rect.VerticalAlignment = System.Windows.VerticalAlignment.Top;
rect.Margin = new Thickness(x_scaled - 3, y_scaled - 3, 0, 0);
rect.Stroke = new SolidColorBrush(MValueFunct2DBase.SetColorAccToState(_state));
rect.StrokeThickness = 2;
rect.Tag = _tag;
rect.ToolTip = "(" + _x.ToString("F2", MValueFunct2DBase.FORMATTER) + " " +
_y.ToString("F2", MValueFunct2DBase.FORMATTER) + ")";
this.canvas.Children.Add(rect);
}
protected void DrawLine(double _x1, double _y1, double _x2, double _y2, Point _tag, FunctionEditState _state = FunctionEditState.REGULAR)
{
// scale input for drawing on the canvas
double x1_scaled = (_x1 - this.xs[0]) * this.fact_x;
double y1_scaled = this.canvas.Height - (_y1 - this.ys[0]) * this.fact_y;
double x2_scaled = (_x2 - this.xs[0]) * this.fact_x;
double y2_scaled = this.canvas.Height - (_y2 - this.ys[0]) * this.fact_y;
Line li = new Line();
li.X1 = x1_scaled;
li.Y1 = y1_scaled;
li.X2 = x2_scaled;
li.Y2 = y2_scaled;
li.Stroke = new SolidColorBrush(MValueFunct2DBase.SetColorAccToState(_state));
li.StrokeThickness = 2;
li.Tag = _tag;
li.SetValue(RenderOptions.EdgeModeProperty, EdgeMode.Aliased);
li.MouseUp += line_MouseUp;
this.canvas.Children.Add(li);
}
