/// <summary>
/// </summary>
/// <param name="paintParams"></param>
/// <exception cref="ArgumentNullException">
/// <para><paramref name="paintParams"/> is <see langword="null"/>.</para>
/// </exception>
public void DrawTrack(NuGenTrackBarPaintParams paintParams)
{
if (paintParams == null)
{
throw new ArgumentNullException("paintParams");
}
Graphics g = paintParams.Graphics;
Rectangle bounds = paintParams.Bounds;
NuGenControlState state = paintParams.State;
TickStyle tickStyle = paintParams.TickStyle;
INuGenValueTracker valueTracker = paintParams.ValueTracker;
/* Track */
Rectangle valueRect = new Rectangle(
bounds.Left,
bounds.Top,
(int)(NuGenSmoothTrackBarRenderer.GetStep(bounds, valueTracker) * (valueTracker.Value - valueTracker.Minimum)),
bounds.Height
);
if (
valueRect.Width > 0 &&
valueRect.Height > 0
)
{
this.DrawBackground(
g,
valueRect,
state == NuGenControlState.Normal || state == NuGenControlState.Focused ? NuGenControlState.Hot : state
);
}
this.DrawBorder(g, bounds, state);
/* TickLines */
if ((tickStyle & TickStyle.BottomRight) > 0)
{
this.DrawTickLines(
g,
NuGenSmoothTrackBarRenderer.GetTickLinesBounds(bounds, TickStyle.BottomRight),
state,
TickStyle.BottomRight,
valueTracker
);
}
if ((tickStyle & TickStyle.TopLeft) > 0)
{
this.DrawTickLines(
g,
NuGenSmoothTrackBarRenderer.GetTickLinesBounds(bounds, TickStyle.TopLeft),
state,
TickStyle.TopLeft,
valueTracker
);
}
}
/// <summary>
/// </summary>
/// <param name="paintParams"></param>
/// <exception cref="ArgumentNullException">
/// <para><paramref name="paintParams"/> is <see langword="null"/>.</para>
/// </exception>
public void DrawTrackButton(NuGenTrackButtonPaintParams paintParams)
{
if (paintParams == null)
{
throw new ArgumentNullException("paintParams");
}
Graphics g = paintParams.Graphics;
Rectangle bounds = paintParams.Bounds;
NuGenControlState state = paintParams.State;
TickStyle tickStyle = paintParams.Style;
Rectangle borderRectangle = NuGenControlPaint.BorderRectangle(bounds);
using (NuGenGrfxMode mode = new NuGenGrfxMode(g))
{
g.SmoothingMode = SmoothingMode.AntiAlias;
using (GraphicsPath gp = NuGenSmoothTrackBarRenderer.GetGraphicsPath(borderRectangle, tickStyle))
{
/* Background */
using (
Brush brush = this.GetBackgroundBrush(
borderRectangle,
state == NuGenControlState.Normal || state == NuGenControlState.Focused
? NuGenControlState.Hot
: state
)
)
{
g.FillPath(brush, gp);
}
/* Body */
Rectangle bodyRectangle = Rectangle.Inflate(borderRectangle, 0, -3);
using (GraphicsPath bgp = NuGenSmoothTrackBarRenderer.GetBodyGraphicsPath(borderRectangle, tickStyle))
using (Brush brush = this.GetBackgroundBrush(bodyRectangle, state))
{
g.FillPath(brush, bgp);
}
/* Border */
using (Pen pen = this.GetBorderPen(state))
{
g.DrawPath(pen, gp);
}
}
}
}
/*
* GetTopLeftGraphicsPath
*/
private static GraphicsPath GetTopLeftGraphicsPath(Rectangle bounds)
{
GraphicsPath gp = new GraphicsPath();
Point topCenter = NuGenControlPaint.RectTCCorner(bounds);
float rectHeight = bounds.Bottom - NuGenSmoothTrackBarRenderer.GetAsymmetricSliderHeight(bounds);
gp.AddLine(bounds.Left, rectHeight, topCenter.X, topCenter.Y);
gp.AddLine(topCenter.X, topCenter.Y, bounds.Right, rectHeight);
gp.AddArc(bounds.Right - _arcSize, bounds.Bottom - _arcSize, _arcSize, _arcSize, 0, 90);
gp.AddArc(bounds.Left, bounds.Bottom - _arcSize, _arcSize, _arcSize, 90, 90);
gp.CloseFigure();
return(gp);
}
/*
* GetBodyGraphicsPath
*/
private static GraphicsPath GetBodyGraphicsPath(Rectangle bounds, TickStyle tickStyle)
{
GraphicsPath gp = new GraphicsPath();
switch (tickStyle)
{
case TickStyle.TopLeft:
{
float rectHeight = bounds.Bottom - NuGenSmoothTrackBarRenderer.GetAsymmetricSliderHeight(bounds) + 3;
Point topCenter = NuGenControlPaint.RectTCCorner(bounds);
topCenter.Offset(0, 3);
gp.AddLine(bounds.Left, rectHeight, topCenter.X, topCenter.Y);
gp.AddLine(topCenter.X, topCenter.Y, bounds.Right, rectHeight);
gp.AddLine(bounds.Right, bounds.Bottom - 4, bounds.Left, bounds.Bottom - 4);
break;
}
case TickStyle.BottomRight:
{
float rectHeight = NuGenSmoothTrackBarRenderer.GetAsymmetricSliderHeight(bounds) - 3;
Point bottomCenter = NuGenControlPaint.RectBCCorner(bounds);
bottomCenter.Offset(0, -3);
gp.AddLine(bounds.Left, bounds.Top + 4, bounds.Right, bounds.Top + 4);
gp.AddLine(bounds.Right, rectHeight, bottomCenter.X, bottomCenter.Y);
gp.AddLine(bottomCenter.X, bottomCenter.Y, bounds.Left, rectHeight);
break;
}
default:
{
gp.AddRectangle(Rectangle.Inflate(bounds, 0, -3));
break;
}
}
gp.CloseFigure();
return(gp);
}
/*
* GetGraphicsPath
*/
private static GraphicsPath GetGraphicsPath(Rectangle bounds, TickStyle tickStyle)
{
switch (tickStyle)
{
case TickStyle.TopLeft:
{
return(NuGenSmoothTrackBarRenderer.GetTopLeftGraphicsPath(bounds));
}
case TickStyle.BottomRight:
{
return(NuGenSmoothTrackBarRenderer.GetBottomRightGraphicsPath(bounds));
}
default:
{
return(NuGenControlPaint.GetRoundRectangleGraphicsPath(bounds, 2));
}
}
}
/*
* DrawTickLines
*/
private void DrawTickLines(
Graphics g,
Rectangle bounds,
NuGenControlState state,
TickStyle tickStyle,
INuGenValueTracker valueTracker
)
{
Debug.Assert(g != null, "g != null");
Debug.Assert(valueTracker != null, "valueTracker != null");
float step = NuGenSmoothTrackBarRenderer.GetStep(bounds, valueTracker) * valueTracker.SmallChange;
float currentOffset = bounds.Left;
this.DrawLargeTickLine(g, bounds, state, currentOffset, tickStyle);
while ((currentOffset += step) < bounds.Right)
{
this.DrawSmallTickLine(g, bounds, state, currentOffset, tickStyle);
}
this.DrawLargeTickLine(g, bounds, state, bounds.Right, tickStyle);
}
