/// <summary>
/// Draw a background for an expert style button with tracking effect.
/// </summary>
/// <param name="context">Rendering context.</param>
/// <param name="rect">Rectangle to draw.</param>
/// <param name="backColor1">First color.</param>
/// <param name="backColor2">Second color.</param>
/// <param name="orientation">Drawing orientation.</param>
/// <param name="path">Clipping path.</param>
/// <param name="memento">Cache used for drawing.</param>
public static IDisposable DrawBackExpertTracking(RenderContext context,
Rectangle rect,
Color backColor1,
Color backColor2,
VisualOrientation orientation,
GraphicsPath path,
IDisposable memento)
{
using (Clipping clip = new Clipping(context.Graphics, path))
{
MementoDouble cache;
if (!(memento is MementoDouble))
{
memento?.Dispose();
cache = new MementoDouble();
memento = cache;
}
else
{
cache = (MementoDouble)memento;
}
cache.first = DrawBackExpert(rect,
CommonHelper.MergeColors(backColor1, 0.35f, Color.White, 0.65f),
CommonHelper.MergeColors(backColor2, 0.53f, Color.White, 0.65f),
orientation, context.Graphics, memento, true, true);
cache.second = DrawBackExpert(rect, backColor1, backColor2, orientation, context.Graphics, memento, false, true);
return(cache);
}
}
/// <summary>
/// Draw a background for an expert style button with pressed effect.
/// </summary>
/// <param name="context">Rendering context.</param>
/// <param name="rect">Rectangle to draw.</param>
/// <param name="backColor1">First color.</param>
/// <param name="backColor2">Second color.</param>
/// <param name="orientation">Drawing orientation.</param>
/// <param name="path">Clipping path.</param>
/// <param name="memento">Cache used for drawing.</param>
public static IDisposable DrawBackExpertPressed(RenderContext context,
Rectangle rect,
Color backColor1,
Color backColor2,
VisualOrientation orientation,
GraphicsPath path,
IDisposable memento)
{
using (Clipping clip = new Clipping(context.Graphics, path))
{
// Cannot draw a zero length rectangle
if ((rect.Width > 0) && (rect.Height > 0))
{
bool generate = true;
MementoBackExpertShadow cache;
// Access a cache instance and decide if cache resources need generating
if (!(memento is MementoBackExpertShadow))
{
memento?.Dispose();
cache = new MementoBackExpertShadow(rect, backColor1, backColor2);
memento = cache;
}
else
{
cache = (MementoBackExpertShadow)memento;
generate = !cache.UseCachedValues(rect, backColor1, backColor2);
}
// Do we need to generate the contents of the cache?
if (generate)
{
rect.X -= 1;
rect.Y -= 1;
rect.Width += 2;
rect.Height += 2;
// Dispose of existing values
cache.Dispose();
cache.path1 = CreateBorderPath(rect, ITEM_CUT);
cache.path2 = CreateBorderPath(new Rectangle(rect.X + 1, rect.Y + 1, rect.Width - 2, rect.Height - 2), ITEM_CUT);
cache.path3 = CreateBorderPath(new Rectangle(rect.X + 2, rect.Y + 2, rect.Width - 4, rect.Height - 4), ITEM_CUT);
cache.brush1 = new SolidBrush(CommonHelper.MergeColors(backColor2, 0.4f, backColor1, 0.6f));
cache.brush2 = new SolidBrush(CommonHelper.MergeColors(backColor2, 0.2f, backColor1, 0.8f));
cache.brush3 = new SolidBrush(backColor1);
}
using (AntiAlias aa = new AntiAlias(context.Graphics))
{
context.Graphics.FillRectangle(cache.brush3, rect);
context.Graphics.FillPath(cache.brush1, cache.path1);
context.Graphics.FillPath(cache.brush2, cache.path2);
context.Graphics.FillPath(cache.brush3, cache.path3);
}
}
return(memento);
}
}
/// <summary>
/// Draw a background for an expert style button that is checked.
/// </summary>
/// <param name="context">Rendering context.</param>
/// <param name="rect">Rectangle to draw.</param>
/// <param name="backColor1">First color.</param>
/// <param name="backColor2">Second color.</param>
/// <param name="orientation">Drawing orientation.</param>
/// <param name="path">Clipping path.</param>
/// <param name="memento">Cache used for drawing.</param>
public static IDisposable DrawBackExpertChecked(RenderContext context,
Rectangle rect,
Color backColor1,
Color backColor2,
VisualOrientation orientation,
GraphicsPath path,
IDisposable memento)
{
using (Clipping clip = new Clipping(context.Graphics, path))
{
// Draw the expert background which is gradient with highlight at bottom
return(DrawBackExpert(rect, backColor1, backColor2, orientation, context.Graphics, memento, true, false));
}
}
private static IDisposable DrawBackExpert(Rectangle drawRect,
Color color1,
Color color2,
VisualOrientation orientation,
Graphics g,
IDisposable memento,
bool total,
bool tracking)
{
// Cannot draw a zero length rectangle
if ((drawRect.Width > 0) && (drawRect.Height > 0))
{
bool generate = true;
MementoBackExpertChecked cache;
// Access a cache instance and decide if cache resources need generating
if (!(memento is MementoBackExpertChecked))
{
memento?.Dispose();
cache = new MementoBackExpertChecked(drawRect, color1, color2, orientation);
memento = cache;
}
else
{
cache = (MementoBackExpertChecked)memento;
generate = !cache.UseCachedValues(drawRect, color1, color2, orientation);
}
// Do we need to generate the contents of the cache?
if (generate)
{
// Dispose of existing values
cache.Dispose();
// If not drawing total area...
if (!total)
{
// Update to draw the inside area instead
drawRect.Inflate(-1, -1);
cache.drawRect = drawRect;
cache.clipPath = new GraphicsPath();
cache.clipPath.AddLine(drawRect.X + 1, drawRect.Y, drawRect.Right - 1, drawRect.Y);
cache.clipPath.AddLine(drawRect.Right - 1, drawRect.Y, drawRect.Right, drawRect.Y + 1);
cache.clipPath.AddLine(drawRect.Right, drawRect.Y + 1, drawRect.Right, drawRect.Bottom - 2);
cache.clipPath.AddLine(drawRect.Right, drawRect.Bottom - 2, drawRect.Right - 2, drawRect.Bottom);
cache.clipPath.AddLine(drawRect.Right - 2, drawRect.Bottom, drawRect.Left + 1, drawRect.Bottom);
cache.clipPath.AddLine(drawRect.Left + 1, drawRect.Bottom, drawRect.Left, drawRect.Bottom - 2);
cache.clipPath.AddLine(drawRect.Left, drawRect.Bottom - 2, drawRect.Left, drawRect.Y + 1);
cache.clipPath.AddLine(drawRect.Left, drawRect.Y + 1, drawRect.X + 1, drawRect.Y);
}
else
{
cache.clipPath = new GraphicsPath();
cache.clipPath.AddRectangle(drawRect);
}
// Create rectangle that covers the enter area
RectangleF gradientRect = new RectangleF(drawRect.X - 1, drawRect.Y - 1, drawRect.Width + 2, drawRect.Height + 2);
// Cannot draw a zero length rectangle
if ((gradientRect.Width > 0) && (gradientRect.Height > 0))
{
// Draw entire area in a gradient color effect
cache.entireBrush = new LinearGradientBrush(gradientRect, CommonHelper.WhitenColor(color1, 0.92f, 0.92f, 0.92f), color1, AngleFromOrientation(orientation))
{
Blend = _rounded1Blend
};
}
RectangleF ellipseRect;
PointF ellipseCenter;
int ellipseHeight = Math.Max(1, drawRect.Height / 4);
int ellipseWidth = Math.Max(1, (tracking ? drawRect.Width : drawRect.Width / 4));
// Ellipse is based on the orientation
switch (orientation)
{
default:
case VisualOrientation.Top:
ellipseRect = new RectangleF(drawRect.Left - ellipseWidth, drawRect.Bottom - ellipseHeight, drawRect.Width + (ellipseWidth * 2), ellipseHeight * 2);
ellipseCenter = new PointF(ellipseRect.Left + (ellipseRect.Width / 2), ellipseRect.Bottom);
break;
case VisualOrientation.Bottom:
ellipseRect = new RectangleF(drawRect.Left - ellipseWidth, drawRect.Top - ellipseHeight, drawRect.Width + (ellipseWidth * 2), ellipseHeight * 2);
ellipseCenter = new PointF(ellipseRect.Left + (ellipseRect.Width / 2), ellipseRect.Top);
break;
case VisualOrientation.Left:
ellipseRect = new RectangleF(drawRect.Right - ellipseWidth, drawRect.Top - ellipseHeight, ellipseWidth * 2, drawRect.Height + (ellipseHeight * 2));
ellipseCenter = new PointF(ellipseRect.Right, ellipseRect.Top + (ellipseRect.Height / 2));
break;
case VisualOrientation.Right:
ellipseRect = new RectangleF(drawRect.Left - ellipseWidth, drawRect.Top - ellipseHeight, ellipseWidth * 2, drawRect.Height + (ellipseHeight * 2));
ellipseCenter = new PointF(ellipseRect.Left, ellipseRect.Top + (ellipseRect.Height / 2));
break;
}
cache.ellipsePath = new GraphicsPath();
cache.ellipsePath.AddEllipse(ellipseRect);
cache.insideLighten = new PathGradientBrush(cache.ellipsePath)
{
CenterPoint = ellipseCenter,
CenterColor = color2,
Blend = _rounded2Blend,
SurroundColors = new Color[] { Color.Transparent }
};
}
if (cache.entireBrush != null)
{
using (Clipping clip = new Clipping(g, cache.clipPath))
{
g.FillRectangle(cache.entireBrush, cache.drawRect);
g.FillPath(cache.insideLighten, cache.ellipsePath);
}
}
}
return(memento);
}
/// <summary>
/// Draw a background for an expert style button has a square inside with highlight.
/// </summary>
/// <param name="context">Rendering context.</param>
/// <param name="rect">Rectangle to draw.</param>
/// <param name="backColor1">First color.</param>
/// <param name="backColor2">Second color.</param>
/// <param name="orientation">Drawing orientation.</param>
/// <param name="path">Clipping path.</param>
/// <param name="memento">Cache used for drawing.</param>
/// <param name="light">Use the 'light' variation.</param>
public static IDisposable DrawBackExpertSquareHighlight(RenderContext context,
Rectangle rect,
Color backColor1,
Color backColor2,
VisualOrientation orientation,
GraphicsPath path,
IDisposable memento,
bool light)
{
using (Clipping clip = new Clipping(context.Graphics, path))
{
// Cannot draw a zero length rectangle
if ((rect.Width > 0) && (rect.Height > 0))
{
bool generate = true;
MementoBackExpertSquareHighlight cache;
// Access a cache instance and decide if cache resources need generating
if (!(memento is MementoBackExpertSquareHighlight))
{
memento?.Dispose();
cache = new MementoBackExpertSquareHighlight(rect, backColor1, backColor2, orientation);
memento = cache;
}
else
{
cache = (MementoBackExpertSquareHighlight)memento;
generate = !cache.UseCachedValues(rect, backColor1, backColor2, orientation);
}
// Do we need to generate the contents of the cache?
if (generate)
{
// Dispose of existing values
cache.Dispose();
cache.backBrush = new SolidBrush(CommonHelper.WhitenColor(backColor1, 0.8f, 0.8f, 0.8f));
cache.innerRect = new Rectangle(rect.X + 1, rect.Y + 1, rect.Width - 2, rect.Height - 2);
RectangleF ellipseRect;
PointF ellipseCenter;
int ellipseWidth = Math.Max(1, rect.Width / 8);
int ellipseHeight = Math.Max(1, rect.Height / 8);
switch (orientation)
{
default:
case VisualOrientation.Top:
cache.innerBrush = new LinearGradientBrush(cache.innerRect, backColor1, backColor2, 90f);
ellipseRect = new RectangleF(rect.Left, rect.Top + (ellipseHeight * 2), rect.Width, ellipseHeight * 12);
ellipseCenter = new PointF(ellipseRect.Left + (ellipseRect.Width / 2), ellipseRect.Bottom);
break;
case VisualOrientation.Bottom:
cache.innerBrush = new LinearGradientBrush(cache.innerRect, backColor1, backColor2, 270f);
ellipseRect = new RectangleF(rect.Left, rect.Top - (ellipseHeight * 6), rect.Width, ellipseHeight * 12);
ellipseCenter = new PointF(ellipseRect.Left + (ellipseRect.Width / 2), ellipseRect.Top);
break;
case VisualOrientation.Left:
cache.innerBrush = new LinearGradientBrush(cache.innerRect, backColor1, backColor2, 180f);
ellipseRect = new RectangleF(rect.Left + (ellipseHeight * 2), rect.Top, ellipseWidth * 12, rect.Height);
ellipseCenter = new PointF(ellipseRect.Right, ellipseRect.Top + (ellipseRect.Height / 2));
break;
case VisualOrientation.Right:
cache.innerBrush = new LinearGradientBrush(rect, backColor1, backColor2, 0f);
ellipseRect = new RectangleF(rect.Left - (ellipseHeight * 6), rect.Top, ellipseWidth * 12, rect.Height);
ellipseCenter = new PointF(ellipseRect.Left, ellipseRect.Top + (ellipseRect.Height / 2));
break;
}
cache.innerBrush.SetSigmaBellShape(0.5f);
cache.ellipsePath = new GraphicsPath();
cache.ellipsePath.AddEllipse(ellipseRect);
cache.insideLighten = new PathGradientBrush(cache.ellipsePath)
{
CenterPoint = ellipseCenter,
CenterColor = (light ? Color.FromArgb(64, Color.White) : Color.FromArgb(128, Color.White)),
Blend = _rounded2Blend,
SurroundColors = new Color[] { Color.Transparent }
};
}
context.Graphics.FillRectangle(cache.backBrush, rect);
context.Graphics.FillRectangle(cache.innerBrush, cache.innerRect);
context.Graphics.FillRectangle(cache.insideLighten, cache.innerRect);
}
return(memento);
}
}
