// TODO: Move this to FigureCollection
private RectangleD GetBounds (FigureCollection figures) {
RectangleD rectangle = new RectangleD (0, 0, 0, 0);
foreach (IFigure figure in figures) {
rectangle.Add (figure.DisplayBox);
}
return rectangle;
}
// TODO: Move this to FigureCollection
private RectangleD GetBounds(FigureCollection figures)
{
RectangleD rectangle = new RectangleD(0, 0, 0, 0);
foreach (IFigure figure in figures)
{
rectangle.Add(figure.DisplayBox);
}
return(rectangle);
}
private void UpdateAdjustments()
{
RectangleD drawing_box = Drawing.DisplayBox;
drawing_box.Add(VisibleArea);
Hadjustment.PageSize = Allocation.Width;
Hadjustment.PageIncrement = Allocation.Width * 0.9;
Hadjustment.StepIncrement = 1.0;
Hadjustment.Lower = drawing_box.X;
Hadjustment.Upper = drawing_box.X2;
Hadjustment.Change();
Vadjustment.PageSize = Allocation.Height;
Vadjustment.PageIncrement = Allocation.Height * 0.9;
Vadjustment.StepIncrement = 1.0;
Vadjustment.Lower = drawing_box.Y;
Vadjustment.Upper = drawing_box.Y2;
Vadjustment.Change();
}
public void RecalculateDisplayBox()
{
_displayBox = new RectangleD(0.0, 0.0);
bool first_flag = true;
foreach (IFigure figure in FiguresEnumerator)
{
if (first_flag)
{
_displayBox = figure.DisplayBox;
first_flag = false;
}
else
{
_displayBox.Add(figure.DisplayBox);
}
}
OnSizeAllocated();
}
public static bool LineContainsPoint (double x1, double y1, double x2, double y2, double px, double py) {
RectangleD r = new RectangleD (new PointD (x1, y1));
r.Add (x2, y2);
r.Inflate (2.0, 2.0);
if (!r.Contains (px, py)) {
return false;
}
double a, b, x, y;
if (x1 == x2) {
return (Math.Abs (px - x1) < 3.0);
}
if (y1 == y2) {
return (Math.Abs (py - y1) < 3.0);
}
a = (y1 - y2) / (x1 - x2);
b = y1 - a * x1;
x = (py - b) / a;
y = a * px + b;
return (Math.Min (Math.Abs (x - px), Math.Abs (y - py)) < 4.0);
}
public void RecalculateDisplayBox ()
{
_displayBox = new RectangleD (0.0, 0.0);
bool first_flag = true;
foreach (IFigure figure in FiguresEnumerator) {
if (first_flag) {
_displayBox = figure.DisplayBox;
first_flag = false;
}
else {
_displayBox.Add (figure.DisplayBox);
}
}
OnSizeAllocated ();
}
