/// <summary>
/// Gets a value indicating which borders to draw.
/// </summary>
/// <param name="state">Palette value should be applicable to this state.</param>
/// <returns>PaletteDrawBorders value.</returns>
public override PaletteDrawBorders GetBorderDrawBorders(PaletteState state)
{
if (_forceBorders)
{
return(_forceBorderEdges);
}
else
{
// If no border edges are allowed then provide none
if ((MaxBorderEdges == PaletteDrawBorders.None) ||
(BorderIgnoreNormal &&
(state == PaletteState.Normal)
)
)
{
return(PaletteDrawBorders.None);
}
else
{
// Get the requested set of edges
PaletteDrawBorders inheritEdges = _inherit.GetBorderDrawBorders(state);
// Limit the edges to those allowed
return(inheritEdges & MaxBorderEdges);
}
}
}
/// <summary>
/// Gets a value indicating which borders to draw.
/// </summary>
/// <param name="state">Palette value should be applicable to this state.</param>
/// <returns>PaletteDrawBorders value.</returns>
public override PaletteDrawBorders GetBorderDrawBorders(PaletteState state)
{
if (Apply)
{
PaletteDrawBorders ret = _primary.GetBorderDrawBorders(Override ? OverrideState : state);
if (ret == PaletteDrawBorders.Inherit)
{
ret = _backup.GetBorderDrawBorders(state);
}
return(ret);
}
else
{
return(_backup.GetBorderDrawBorders(state));
}
}
/// <summary>
/// Gets the actual borders to draw value.
/// </summary>
/// <param name="state">Palette value should be applicable to this state.</param>
/// <returns>PaletteDrawBorders value.</returns>
public PaletteDrawBorders GetBorderDrawBorders(PaletteState state)
{
if (DrawBorders != PaletteDrawBorders.Inherit)
{
return(DrawBorders);
}
else
{
return(_inherit.GetBorderDrawBorders(state));
}
}
/// <summary>
/// Gets a value indicating which borders to draw.
/// </summary>
/// <param name="style">Border style.</param>
/// <param name="state">Palette value should be applicable to this state.</param>
/// <returns>PaletteDrawBorders value.</returns>
public override PaletteDrawBorders GetBorderDrawBorders(PaletteBorderStyle style, PaletteState state)
{
IPaletteBorder inherit = GetInherit(state);
if (inherit != null)
{
return(inherit.GetBorderDrawBorders(state));
}
else
{
return(Target.GetBorderDrawBorders(style, state));
}
}
/// <summary>
/// Gets the actual borders to draw value.
/// </summary>
/// <param name="state">Palette value should be applicable to this state.</param>
/// <returns>PaletteDrawBorders value.</returns>
public PaletteDrawBorders GetBorderDrawBorders(PaletteState state)
{
return(_inherit.GetBorderDrawBorders(state));
}
/// <summary>
/// Gets a value indicating which borders to draw.
/// </summary>
/// <param name="style">Border style.</param>
/// <param name="state">Palette value should be applicable to this state.</param>
/// <returns>PaletteDrawBorders value.</returns>
public override PaletteDrawBorders GetBorderDrawBorders(PaletteBorderStyle style, PaletteState state)
{
IPaletteBorder inherit = GetInherit(state);
return(inherit?.GetBorderDrawBorders(state) ?? Target.GetBorderDrawBorders(style, state));
}
/// <summary>
/// Draw border on the inside edge of the specified rectangle.
/// </summary>
/// <param name="context">Rendering context.</param>
/// <param name="rect">Target rectangle.</param>
/// <param name="palette">Palette used for drawing.</param>
/// <param name="orientation">Visual orientation of the border.</param>
/// <param name="state">State associated with rendering.</param>
public override void DrawBorder(RenderContext context,
Rectangle rect,
IPaletteBorder palette,
VisualOrientation orientation,
PaletteState state)
{
Debug.Assert(context != null);
Debug.Assert(palette != null);
// Validate parameter references
if (context == null) throw new ArgumentNullException("context");
if (palette == null) throw new ArgumentNullException("palette");
Debug.Assert(context.Control != null);
Debug.Assert(!context.Control.IsDisposed);
PaletteDrawBorders borders = palette.GetBorderDrawBorders(state);
// Is there anything to actually draw?
if ((rect.Width > 0) && (rect.Height > 0) && CommonHelper.HasABorder(borders))
{
// Only use anti aliasing if the border is rounded
SmoothingMode smoothMode = (palette.GetBorderRounding(state) > 0 ? SmoothingMode.AntiAlias : SmoothingMode.Default);
// We want to draw using anti aliasing for a nice smooth effect
using (GraphicsHint hint = new GraphicsHint(context.Graphics, palette.GetBorderGraphicsHint(state)))
{
// Cache commonly used values
int borderWidth = palette.GetBorderWidth(state);
// Get the orientation correct borders value
borders = CommonHelper.OrientateDrawBorders(borders, orientation);
// Is there any border to actually draw?
if (borderWidth > 0)
{
using (Clipping clip = new Clipping(context.Graphics, rect))
{
// We always create the first border path variant
GraphicsPath borderPath0 = CreateBorderBackPath(true, true, rect, borders, borderWidth,
palette.GetBorderRounding(state),
(smoothMode == SmoothingMode.AntiAlias), 0);
GraphicsPath borderPath1 = null;
// We only need the second border path if the two borders used are opposite each other
if ((borders == PaletteDrawBorders.TopBottom) ||
(borders == PaletteDrawBorders.LeftRight))
{
borderPath1 = CreateBorderBackPath(true, true, rect, borders, borderWidth,
palette.GetBorderRounding(state),
(smoothMode == SmoothingMode.AntiAlias), 1);
}
// Get the rectangle to use when dealing with gradients
Rectangle gradientRect = context.GetAlignedRectangle(palette.GetBorderColorAlign(state), rect);
// Use standard helper routine to create appropriate color brush
PaletteColorStyle colorStyle = palette.GetBorderColorStyle(state);
using (Pen borderPen = new Pen(CreateColorBrush(gradientRect,
palette.GetBorderColor1(state),
palette.GetBorderColor2(state),
colorStyle,
palette.GetBorderColorAngle(state),
orientation), borderWidth))
{
if (colorStyle == PaletteColorStyle.Dashed)
borderPen.DashPattern = new float[] { 2, 2 };
context.Graphics.DrawPath(borderPen, borderPath0);
// Optionally also draw the second path
if (borderPath1 != null)
context.Graphics.DrawPath(borderPen, borderPath1);
}
Image borderImage = palette.GetBorderImage(state);
PaletteImageStyle borderImageStyle = palette.GetBorderImageStyle(state);
// Do we need to draw the image?
if (ShouldDrawImage(borderImage))
{
// Get the rectangle to use when dealing with gradients
Rectangle imageRect = context.GetAlignedRectangle(palette.GetBorderImageAlign(state), rect);
// Use standard helper routine to create appropriate image brush
using (Pen borderPen = new Pen(CreateImageBrush(imageRect, borderImage, borderImageStyle), borderWidth))
{
context.Graphics.DrawPath(borderPen, borderPath0);
// Optionally also draw the second path
if (borderPath1 != null)
context.Graphics.DrawPath(borderPen, borderPath1);
}
}
// Remember to dispose of resources
borderPath0.Dispose();
if (borderPath1 != null)
borderPath1.Dispose();
}
}
}
}
}
/// <summary>
/// Generate a graphics path that is the outside edge of the border.
/// </summary>
/// <param name="context">Rendering context.</param>
/// <param name="rect">Target rectangle.</param>
/// <param name="palette">Palette used for drawing.</param>
/// <param name="orientation">Visual orientation of the border.</param>
/// <param name="state">State associated with rendering.</param>
/// <returns>GraphicsPath instance.</returns>
public override GraphicsPath GetOutsideBorderPath(RenderContext context,
Rectangle rect,
IPaletteBorder palette,
VisualOrientation orientation,
PaletteState state)
{
Debug.Assert(context != null);
Debug.Assert(palette != null);
// Validate parameter references
if (context == null) throw new ArgumentNullException("context");
if (palette == null) throw new ArgumentNullException("palette");
Debug.Assert(context.Control != null);
Debug.Assert(!context.Control.IsDisposed);
// Use helper to create a border path on the outside
return CreateBorderBackPath(true, false, rect,
CommonHelper.OrientateDrawBorders(palette.GetBorderDrawBorders(state), orientation),
palette.GetBorderWidth(state),
palette.GetBorderRounding(state),
(palette.GetBorderGraphicsHint(state) == PaletteGraphicsHint.AntiAlias),
0);
}
/// <summary>
/// Gets the raw padding used per edge of the border.
/// </summary>
/// <param name="palette">Palette used for drawing.</param>
/// <param name="state">State associated with rendering.</param>
/// <param name="orientation">Visual orientation of the border.</param>
/// <returns>Padding structure detailing all four edges.</returns>
public override Padding GetBorderRawPadding(IPaletteBorder palette,
PaletteState state,
VisualOrientation orientation)
{
Debug.Assert(palette != null);
// Validate parameter reference
if (palette == null) throw new ArgumentNullException("palette");
PaletteDrawBorders borders = palette.GetBorderDrawBorders(state);
// If there is at least one border to be drawn
if (CommonHelper.HasABorder(borders))
{
int borderWidth = palette.GetBorderWidth(state);
switch (borders)
{
case PaletteDrawBorders.Bottom:
return new Padding(0, 0, 0, borderWidth);
case PaletteDrawBorders.BottomLeft:
return new Padding(borderWidth, 0, 0, borderWidth);
case PaletteDrawBorders.BottomLeftRight:
return new Padding(borderWidth, 0, borderWidth, borderWidth);
case PaletteDrawBorders.BottomRight:
return new Padding(0, 0, borderWidth, borderWidth);
case PaletteDrawBorders.Left:
return new Padding(borderWidth, 0, 0, 0);
case PaletteDrawBorders.LeftRight:
return new Padding(borderWidth, 0, borderWidth, 0);
case PaletteDrawBorders.Top:
return new Padding(0, borderWidth, 0, 0);
case PaletteDrawBorders.Right:
return new Padding(0, 0, borderWidth, 0);
case PaletteDrawBorders.TopBottom:
return new Padding(0, borderWidth, 0, borderWidth);
case PaletteDrawBorders.TopBottomLeft:
return new Padding(borderWidth, borderWidth, 0, borderWidth);
case PaletteDrawBorders.TopBottomRight:
return new Padding(0, borderWidth, borderWidth, borderWidth);
case PaletteDrawBorders.TopLeft:
return new Padding(borderWidth, borderWidth, 0, 0);
case PaletteDrawBorders.TopLeftRight:
return new Padding(borderWidth, borderWidth, borderWidth, 0);
case PaletteDrawBorders.TopRight:
return new Padding(0, borderWidth, borderWidth, 0);
case PaletteDrawBorders.All:
return new Padding(borderWidth);
default:
// Should never happen!
Debug.Assert(false);
return Padding.Empty;
}
}
else
return Padding.Empty;
}
/// <summary>
/// Gets the padding used to position display elements completely inside border drawing.
/// </summary>
/// <param name="palette">Palette used for drawing.</param>
/// <param name="state">State associated with rendering.</param>
/// <param name="orientation">Visual orientation of the border.</param>
/// <returns>Padding structure detailing all four edges.</returns>
public override Padding GetBorderDisplayPadding(IPaletteBorder palette,
PaletteState state,
VisualOrientation orientation)
{
Debug.Assert(palette != null);
// Validate parameter reference
if (palette == null) throw new ArgumentNullException("palette");
PaletteDrawBorders borders = palette.GetBorderDrawBorders(state);
// If there is at least one border to be drawn
if (CommonHelper.HasABorder(borders))
{
int borderWidth = palette.GetBorderWidth(state);
// Divide the rounding effect by PI to get the actual pixel distance needed
// for offseting. But add 2 so it starts indenting on a rounding of just 1.
int roundPadding = Convert.ToInt16((palette.GetBorderRounding(state) + borderWidth + 2) / Math.PI);
// If not involving rounding then padding for an edge is just the border width
int squarePadding = borderWidth;
// Borders thicker than 1 need extra offsetting, by half the extra width
if (borderWidth > 1)
{
int halfExtra = borderWidth / 2;
roundPadding += halfExtra;
}
// Enforce the width of the border as the minimum to ensure
// it still works as expected for small values of rounding
if (roundPadding < borderWidth)
roundPadding = borderWidth;
switch (borders)
{
case PaletteDrawBorders.Bottom:
return new Padding(0, 0, 0, squarePadding);
case PaletteDrawBorders.BottomLeft:
return new Padding(roundPadding, 0, 0, roundPadding);
case PaletteDrawBorders.BottomLeftRight:
return new Padding(roundPadding, 0, roundPadding, roundPadding);
case PaletteDrawBorders.BottomRight:
return new Padding(0, 0, roundPadding, roundPadding);
case PaletteDrawBorders.Left:
return new Padding(squarePadding, 0, 0, 0);
case PaletteDrawBorders.LeftRight:
return new Padding(squarePadding, 0, squarePadding, 0);
case PaletteDrawBorders.Top:
return new Padding(0, squarePadding, 0, 0);
case PaletteDrawBorders.Right:
return new Padding(0, 0, squarePadding, 0);
case PaletteDrawBorders.TopBottom:
return new Padding(0, squarePadding, 0, squarePadding);
case PaletteDrawBorders.TopBottomLeft:
return new Padding(roundPadding, roundPadding, 0, roundPadding);
case PaletteDrawBorders.TopBottomRight:
return new Padding(0, roundPadding, roundPadding, roundPadding);
case PaletteDrawBorders.TopLeft:
return new Padding(roundPadding, roundPadding, 0, 0);
case PaletteDrawBorders.TopLeftRight:
return new Padding(roundPadding, roundPadding, roundPadding, 0);
case PaletteDrawBorders.TopRight:
return new Padding(0, roundPadding, roundPadding, 0);
case PaletteDrawBorders.All:
return new Padding(roundPadding);
default:
// Should never happen!
Debug.Assert(false);
return Padding.Empty;
}
}
else
return Padding.Empty;
}