public void PaintTools(object sender, SplinePaintEventArgs e)
{
// Get sender as a spline tab
SplineTab tb = sender as SplineTab;
// Assure sender was a spline tab
if (tb == null)
{
throw new Exception("Sender for knots must be spline tab");
}
// Is bezier being drawn?
if (e.Bezier)
{
// Draw bezier tools
PaintTools_Bezier(tb.Camera, e);
}
else
{
// Draw hermite tools
PaintTools_Hermite(tb.Camera, e);
}
}
public void MouseMove(object sender, SplineMouseEventArgs e)
{
// Get sender as a spline tab
SplineTab tb = sender as SplineTab;
// Assure sender was a spline tab
if (tb == null)
{
throw new Exception("Sender for knots must be spline tab");
}
// Is bezier being constructed?
if (e.Bezier)
{
// Move bezier tools
MouseMove_Bezier(e.Point, e);
}
else
{
// Move hermite tools
MouseMove_Hermite(e.Point, e);
}
}
// Functions related to drawing
#region Paint Functions
public void PaintCurve(object sender, SplinePaintEventArgs e)
{
// Get sender as a spline tab
SplineTab tb = sender as SplineTab;
// Assure sender was a spline tab
if (tb == null)
{
throw new Exception("Sender for knots must be spline tab");
}
// Get the graphics from the event
Graphics g = e.PaintEvent.Graphics;
// Create a red brush
Brush rBrush = new SolidBrush(SelControl == SelectedControl.None ? Color.Red : e.Bezier ? Color.Blue : Color.Green);
// Get the camera as a vector
Vector2 cam = tb.Camera;
// Draw a circle to represent this knot
g.FillEllipse(rBrush, (m_Point.x - cam.x) - e.Radius, (-(m_Point.y - cam.y)) - e.Radius, e.Radius * 2f, e.Radius * 2f);
// Create a white pen
Pen wPen = new Pen(Color.White, e.Thickness);
// Is this knot not the last knot?
if (m_Next != null)
{
// Draw the curve
g.DrawBezier(wPen, GetPos(m_Point, cam), GetPos(m_After, cam), GetPos(Next.Before, cam), GetPos(Next.Position, cam));
}
// Dispose of pens and brushes
rBrush.Dispose();
wPen.Dispose();
}
// Functions related to the mouse
#region Mouse Functions
public void MouseClick(object sender, SplineMouseEventArgs e)
{
// Get sender as a spline tab
SplineTab tb = sender as SplineTab;
// Assure sender was a spline tab
if (tb == null)
{
throw new Exception("Sender for knots must be spline tab");
}
// Check if point was clicked first
if ((e.Point - m_Point).Magnitude() <= e.Radius)
{
// Set this knot to being selected
e.Selected = this;
// Set the selected control to the point
SelControl = SelectedControl.Point;
// End this function
return;
}
// Create booleans to capture result
bool hasFront = false;
bool hasAfter = false;
// Is bezier mode active?
if (e.Bezier)
{
// Create bound rectangle
Vector2 BU = new Vector2(e.Radius, e.Radius);
// Calculate fronts bounding box
Vector2 FLL = m_Front - BU;
Vector2 FUR = m_Front + BU;
// Calculate afters bounding box
Vector2 ALL = m_After - BU;
Vector2 AUR = m_After + BU;
// Set if mouse is contained in either
hasFront = (e.Point.x >= FLL.x && e.Point.x <= FUR.x) && (e.Point.y >= FLL.y && e.Point.y <= FUR.y);
hasAfter = (e.Point.x >= ALL.x && e.Point.x <= AUR.x) && (e.Point.y >= ALL.y && e.Point.y <= AUR.y);
}
else
{
// Set if mouse is contained in either
hasFront = (e.Point - m_Front).Magnitude() <= e.Radius;
hasAfter = (e.Point - m_After).Magnitude() <= e.Radius;
}
// Was mouse contained by the in tangent?
if (hasFront)
{
// Set this knot to being selected
e.Selected = this;
// Set the selected control to the in tangent
SelControl = SelectedControl.In;
// End this function
return;
}
// Was the mouse contained by the out tangent?
if (hasAfter)
{
// Set this knot to being selected
e.Selected = this;
// Set the selected control to the out tangent
SelControl = SelectedControl.Out;
// End this function
return;
}
// Set no control to being selected
SelControl = SelectedControl.None;
}