/// <summary>
/// Renders the caret.
/// </summary>
protected virtual void RenderCaret()
{
if (drawCaret && textFont != null)
{
UI2DRenderer.DrawLine(paintBounds.X + caretPosition.X, caretPosition.Y + textHeight,
paintBounds.X + caretPosition.X, caretPosition.Y, Color.Black, 1);
}
if (caretTimer >= caretBlinkInterval)
{
drawCaret = !drawCaret;
caretTimer = 0;
}
}
protected override void PaintComponent()
{
base.PaintComponent();
if (lines == null)
{
return;
}
Color c = animationBarColor;
c.A = 255;
for (int i = 0; i < linesToDraw.Count; i++)
{
if (alpha < 255 && linesToDraw.Count > 4)
{
c.A = (byte)((i + 1) / 6.0f * alpha);
}
UI2DRenderer.DrawLine(linesToDraw[i].Start, linesToDraw[i].End, c, lineWidth);
}
if (textFont != null && label.Length > 0)
{
UI2DRenderer.WriteText(textPos, label, textColor, textFont);
}
animationCounter++;
if (animationCounter > updateInterval)
{
linesToDraw.RemoveAt(0);
linesToDraw.Add(lines[curTail]);
curTail++;
if (curTail >= lines.Length)
{
curTail = 0;
}
animationCounter = 0;
}
}
protected override void PaintComponent()
{
// Render the track first since it appears on the background of everything
if (paintTrack)
{
UI2DRenderer.DrawRectangle(trackBound, trackBorderColor, 1);
UI2DRenderer.FillRectangle(trackBound, null, trackColor);
}
// Render the knob
if (paintTicks)
{ // If ticks are painted, then the lower part of the knob will change to a pointing shape
UI2DRenderer.FillPolygon(knobPoints, knobColor, knobBound.Location, UI2DRenderer.PolygonShape.Convex);
Point p1 = new Point();
Point p2 = new Point();
for (int i = 0, j = 0; i < knobPoints.Count; i++)
{
if (i == knobPoints.Count - 1)
{
j = 0;
}
else
{
j = i + 1;
}
p1.X = knobPoints[i].X + knobBound.Location.X;
p1.Y = knobPoints[i].Y + knobBound.Location.Y;
p2.X = knobPoints[j].X + knobBound.Location.X;
p2.Y = knobPoints[j].Y + knobBound.Location.Y;
UI2DRenderer.DrawLine(p1, p2, knobBorderColor, 1);
}
}
else
{ // Otherwise, it's a simple rectangle
Color c = (enabled) ? knobColor : disabledColor;
// Render inside first
UI2DRenderer.FillRectangle(knobBound, null, c);
UI2DRenderer.DrawRectangle(knobBound, knobBorderColor, 1);
}
// Render the tickes
if (paintTicks)
{
float nextLoc = 0;
if (orientation == GoblinEnums.Orientation.Horizontal)
{
nextLoc = tickBound.X + minorTickDelta;
// Render the minor ticks if minorTickSpacing is greater than 0
for (int i = 0; i < minorTickCount; i++)
{
UI2DRenderer.DrawLine((int)nextLoc, tickBound.Y, (int)nextLoc, tickBound.Y + 4,
knobBorderColor, 1);
nextLoc += minorTickDelta;
}
nextLoc = tickBound.X;
// Render the major ticks if majorTickSpacing is greater than 0
for (int i = 0; i <= majorTickCount; i++)
{
UI2DRenderer.DrawLine((int)nextLoc, tickBound.Y, (int)nextLoc, tickBound.Y + 8,
knobBorderColor, 1);
nextLoc += majorTickDelta;
}
}
else
{
nextLoc = tickBound.Y + minorTickDelta;
// Render the minor ticks if minorTickSpacing is greater than 0
for (int i = 0; i < minorTickCount; i++)
{
UI2DRenderer.DrawLine(tickBound.X, (int)nextLoc, tickBound.X + 4, (int)nextLoc,
knobBorderColor, 1);
nextLoc += minorTickDelta;
}
nextLoc = tickBound.Y;
// Render the major ticks if majorTickSpacing is greater than 0
for (int i = 0; i <= majorTickCount; i++)
{
UI2DRenderer.DrawLine(tickBound.X, (int)nextLoc, tickBound.X + 8, (int)nextLoc,
knobBorderColor, 1);
nextLoc += majorTickDelta;
}
}
}
// Render the labels
if (paintLabels && textFont != null)
{
float nextLoc = 0;
Vector2 textPos = new Vector2();
if (orientation == GoblinEnums.Orientation.Horizontal)
{
nextLoc = tickBound.X;
textPos.Y = labelBound.Y + 1;
// Render labels below major ticks only
for (int i = 0; i < tickLabels.Count; i++)
{
textPos.X = (int)nextLoc - labelShifts[i];
UI2DRenderer.WriteText(textPos, tickLabels[i], knobBorderColor, textFont);
nextLoc += majorTickDelta;
}
}
else
{
nextLoc = tickBound.Y;
textPos.X = labelBound.X + 1;
// Render labels next to major ticks only
for (int i = 0; i < tickLabels.Count; i++)
{
textPos.Y = (int)nextLoc - 5;
UI2DRenderer.WriteText(textPos, tickLabels[tickLabels.Count - i - 1], knobBorderColor, textFont);
nextLoc += majorTickDelta;
}
}
}
}
