public override void Render(GuiContext c)
{
var box = new Rectangle(c.X, c.Y, Width, Height);
var g = c.GetGraphics();
// important locations (TODO: fix for horizontal)
var fullRect = new RectangleF(c.X, c.Y, Width, Height);
var faderAreaRect = new RectangleF(c.X, c.Y, Width / 2, Height);
var slotRect = new RectangleF(faderAreaRect.X + faderAreaRect.Width / 2 - 3, faderAreaRect.Y, 6, faderAreaRect.Height);
var valueAreaRect = new RectangleF(c.X + Width / 2, c.Y, Width / 2, Height);
// draw slot
g.FillRectangle(new SolidBrush(Parent.Gray1), slotRect);
g.DrawLine(new Pen(Parent.Gray5, 2), slotRect.X, slotRect.Y, slotRect.X + slotRect.Width, slotRect.Y);
g.DrawLine(new Pen(Parent.Gray5, 2), slotRect.X, slotRect.Y, slotRect.X, slotRect.Y + slotRect.Height);
// draw fader knob
float knobHeight = faderAreaRect.Height / 10;
RectangleF faderKnob = new RectangleF();
if (Type == FaderType.Vertical)
{
faderKnob = new RectangleF(faderAreaRect.X, faderAreaRect.Y + faderAreaRect.Height - (int)(Percent * (faderAreaRect.Height * 0.9)) - faderAreaRect.Height / 10, faderAreaRect.Width, faderAreaRect.Height / 10);
}
else if (Type == FaderType.Horizontal)
{
faderKnob = new RectangleF(faderAreaRect.X + (int)(Percent * (faderAreaRect.Width * 0.9)), faderAreaRect.Y, faderAreaRect.Width / 10, faderAreaRect.Height);
}
g.FillRectangle(new SolidBrush(Parent.BaseColor), faderKnob);
// draw value
var valuePen = new Pen(Parent.BaseColor, 5);
if (Type == FaderType.Vertical)
{
float x0 = valueAreaRect.X + valueAreaRect.Width / 2;
float y1 = valueAreaRect.Y + valueAreaRect.Height;
float y0 = (float)(y1 - valueAreaRect.Height * Percent);
g.DrawLine(valuePen, x0, y0, x0, y1);
}
// draw borders
//var pen = new Pen(Color.White, 3);
// g.DrawRectangle(pen, box);
}
/// <summary>
/// Copies the renderered image to the GuiContext.
/// </summary>
public override void Render(GuiContext c)
{
// should we assume its already rendered?
//Rendererer.Render();
var r = new Rectangle();
r.X = c.X;
r.Y = c.Y;
r.Width = Width;
r.Height = Height;
var g = c.GetGraphics();
g.DrawImageUnscaledAndClipped(Rendererer.Image, r);
}
/// <summary>
/// Draws a white circle 3px thick with a line representing
/// the current value, with 1/4 of the circle at the bottom
/// not used, with a curve around it from the start point
/// to the current point in yellow.
/// </summary>
public override void Render(GuiContext c)
{
var testbmp = new Bitmap(Width, Height);
//var g = Graphics.FromImage(testbmp);
var g = c.GetGraphics();
g.SmoothingMode = SmoothingMode.AntiAlias;
g.CompositingQuality = CompositingQuality.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
// get different radiuses
var fullRadius = Width / 2.0;
var lineStartRadius = fullRadius * 0.25;
var lineEndRadius = fullRadius * 0.55;
// get theta of value
var theta0 = Math.PI * (-0.25);
var theta1 = Math.PI * 1.25;
var theta = theta0 + ((theta1 - theta0) * (1 - Percent));
// get line sizes
float valuePenWidth = (float)Width * 0.12F;
float linePenWidth = (float)Width * 0.04F;
// shadow positions
float shadowOffset1 = Width * 0.035F;
float shadowOffset2 = Width * 0.025F;
// calculate important points
var midpoint = new PointF(c.X + Width / 2, c.Y + Height / 2);
var fullRect = new RectangleF(c.X, c.Y, Width, Height);
var borderRect = new RectangleF(c.X + valuePenWidth / 2, c.Y + valuePenWidth / 2, Width - valuePenWidth, Height - valuePenWidth);
var bandCenterRect = new RectangleF(c.X + valuePenWidth, c.Y + valuePenWidth, Width - valuePenWidth * 2, Height - valuePenWidth * 2);
var knobRect = new RectangleF(c.X + valuePenWidth * 1.5F, c.Y + valuePenWidth * 1.5F, Width - valuePenWidth * 3F, Height - valuePenWidth * 3F);
var knobBorderRect = new RectangleF(knobRect.X + 1, knobRect.Y + 1, knobRect.Width - 2, knobRect.Height - 2);
var shawdowRect = new RectangleF(fullRect.X + 2, fullRect.Y + 5, fullRect.Width, fullRect.Height);
// draw the outer band
g.FillEllipse(new LinearGradientBrush(borderRect, BandColor1, BandColor2, LinearGradientMode.Vertical), borderRect);
// draw the outline for the outer band
g.DrawEllipse(new Pen(OuterBorderColor, 2), borderRect);
//g.DrawEllipse(new Pen(InnerBorderColor1, 3), knobBorderRect);
//g.DrawEllipse(new Pen(InnerBorderColor2, 5), knobBorderRect2);
// draw the knob
g.FillEllipse(new LinearGradientBrush(knobRect, KnobColor1, KnobColor2, LinearGradientMode.Vertical), knobRect);
g.DrawArc(new Pen(InnerBorderColor1, 1), knobBorderRect, 210, 120);
g.DrawArc(new Pen(InnerBorderColor2, 2), knobBorderRect, 30, 120);
// draw the value arc
float arcLength = (float)Percent * 270;
g.DrawArc(new Pen(ValueColor, valuePenWidth), fullRect, 135, arcLength);
g.DrawArc(new Pen(ValueBandColor, valuePenWidth), bandCenterRect, 135, arcLength);
// draw the line pointing at the value
var lineStartRel = new PointF((float)(Math.Cos(theta) * lineStartRadius), (float)(Math.Sin(theta) * lineStartRadius));
var lineEndRel = new PointF((float)(Math.Cos(theta) * lineEndRadius), (float)(Math.Sin(theta) * lineEndRadius));
g.DrawLine(new Pen(LineColor, linePenWidth), midpoint.X + lineStartRel.X, midpoint.Y - lineStartRel.Y, midpoint.X + lineEndRel.X, midpoint.Y - lineEndRel.Y);
// label test
var font = new Font("arial", 8);
g.DrawString("Knob", font, new SolidBrush(Color.White), c.X + Width / 2, c.Y + Height, new StringFormat()
{
Alignment = StringAlignment.Center
});
}
