public override XPoint AddToPath(XGraphicsPath path, XPoint cursor, Base lastPathCommand = null)
{
if (Radii.Width == 0 || Radii.Height == 0)
{
path.AddLine(cursor, End.ToXPoint());
return(End.ToXPoint());
}
if (End.X == cursor.X && End.Y == cursor.Y)
{
return(cursor);
}
path.AddArc(cursor, End.ToXPoint(), Radii.ToXSize(), XAxisRotation, IsLongArc, IsSweep ? XSweepDirection.Clockwise : XSweepDirection.Counterclockwise);
return(End.ToXPoint());
}
private void OnAmunTextBoxSizeChanged(object sender, SizeChangedEventArgs e)
{
logger.I("OnAmunTextBoxSizeChanged: from " + e.PreviousSize + " to " + e.NewSize);
if (!e.Handled && GridContentStreamGeoElement != null && IsUsingAmunClippingBorder)
{
GridContentStreamGeoElement.Clear();
Thickness borders = BorderThickness;
Rect boundRect = new Rect(e.NewSize);
//Rect innerRect = AIVUtil.HelperDeflateRect(boundRect, borders);
using (StreamGeometryContext ctx = GridContentStreamGeoElement.Open())
{
CornerRadius radii = CornerRadius;
Radii innerRadii = new Radii(radii, borders, false);
GenerateGeometry(ctx, boundRect, innerRadii);
}
}
}
/// <summary>
/// Generates a StreamGeometry.
/// </summary>
/// <param name="ctx">An already opened StreamGeometryContext.</param>
/// <param name="rect">Rectangle for geomentry conversion.</param>
/// <param name="radii">Corner radii.</param>
/// <returns>Result geometry.</returns>
private static void GenerateGeometry(StreamGeometryContext ctx, Rect rect, Radii radii)
{
//
// compute the coordinates of the key points
//
Point topLeft = new Point(radii.LeftTop, 0);
Point topRight = new Point(rect.Width - radii.RightTop, 0);
Point rightTop = new Point(rect.Width, radii.TopRight);
Point rightBottom = new Point(rect.Width, rect.Height - radii.BottomRight);
Point bottomRight = new Point(rect.Width - radii.RightBottom, rect.Height);
Point bottomLeft = new Point(radii.LeftBottom, rect.Height);
Point leftBottom = new Point(0, rect.Height - radii.BottomLeft);
Point leftTop = new Point(0, radii.TopLeft);
//
// check keypoints for overlap and resolve by partitioning radii according to
// the percentage of each one.
//
// top edge is handled here
if (topLeft.X > topRight.X)
{
double v = (radii.LeftTop) / (radii.LeftTop + radii.RightTop) * rect.Width;
topLeft.X = v;
topRight.X = v;
}
// right edge
if (rightTop.Y > rightBottom.Y)
{
double v = (radii.TopRight) / (radii.TopRight + radii.BottomRight) * rect.Height;
rightTop.Y = v;
rightBottom.Y = v;
}
// bottom edge
if (bottomRight.X < bottomLeft.X)
{
double v = (radii.LeftBottom) / (radii.LeftBottom + radii.RightBottom) * rect.Width;
bottomRight.X = v;
bottomLeft.X = v;
}
// left edge
if (leftBottom.Y < leftTop.Y)
{
double v = (radii.TopLeft) / (radii.TopLeft + radii.BottomLeft) * rect.Height;
leftBottom.Y = v;
leftTop.Y = v;
}
//
// add on offsets
//
Vector offset = new Vector(rect.TopLeft.X, rect.TopLeft.Y);
topLeft += offset;
topRight += offset;
rightTop += offset;
rightBottom += offset;
bottomRight += offset;
bottomLeft += offset;
leftBottom += offset;
leftTop += offset;
//
// create the border geometry
//
ctx.BeginFigure(topLeft, true /* is filled */, true /* is closed */);
// Top line
ctx.LineTo(topRight, true /* is stroked */, false /* is smooth join */);
// Upper-right corner
double radiusX = rect.TopRight.X - topRight.X;
double radiusY = rightTop.Y - rect.TopRight.Y;
if (!DoubleUtil.IsZero(radiusX) ||
!DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(rightTop, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Right line
ctx.LineTo(rightBottom, true /* is stroked */, false /* is smooth join */);
// Lower-right corner
radiusX = rect.BottomRight.X - bottomRight.X;
radiusY = rect.BottomRight.Y - rightBottom.Y;
if (!DoubleUtil.IsZero(radiusX) ||
!DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(bottomRight, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Bottom line
ctx.LineTo(bottomLeft, true /* is stroked */, false /* is smooth join */);
// Lower-left corner
radiusX = bottomLeft.X - rect.BottomLeft.X;
radiusY = rect.BottomLeft.Y - leftBottom.Y;
if (!DoubleUtil.IsZero(radiusX) ||
!DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(leftBottom, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Left line
ctx.LineTo(leftTop, true /* is stroked */, false /* is smooth join */);
// Upper-left corner
radiusX = topLeft.X - rect.TopLeft.X;
radiusY = leftTop.Y - rect.TopLeft.Y;
if (!DoubleUtil.IsZero(radiusX) ||
!DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(topLeft, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
}
/// <summary>
/// In addition to the child, Border renders a background + border. The background is drawn inside the border.
/// </summary>
protected override void OnRender(DrawingContext dc)
{
bool useLayoutRounding = this.UseLayoutRounding;
DpiScale dpi = GetDpi();
if (_useComplexRenderCodePath)
{
Brush brush;
StreamGeometry borderGeometry = BorderGeometryCache;
if (borderGeometry != null &&
(brush = BorderBrush) != null)
{
dc.DrawGeometry(brush, null, borderGeometry);
}
StreamGeometry backgroundGeometry = BackgroundGeometryCache;
if (backgroundGeometry != null &&
(brush = Background) != null)
{
dc.DrawGeometry(brush, null, backgroundGeometry);
}
}
else
{
Thickness border = BorderThickness;
Brush borderBrush;
CornerRadius cornerRadius = CornerRadius;
double outerCornerRadius = cornerRadius.TopLeft; // Already validated that all corners have the same radius
bool roundedCorners = !DoubleUtil.IsZero(outerCornerRadius);
// If we have a brush with which to draw the border, do so.
// NB: We double draw corners right now. Corner handling is tricky (bevelling, &c...) and
// we need a firm spec before doing "the right thing." (greglett, ffortes)
if (!border.IsZero &&
(borderBrush = BorderBrush) != null)
{
// Initialize the first pen. Note that each pen is created via new()
// and frozen if possible. Doing this avoids the pen
// being copied when used in the DrawLine methods.
Pen pen = LeftPenCache;
if (pen == null)
{
pen = new Pen();
pen.Brush = borderBrush;
if (useLayoutRounding)
{
pen.Thickness = UIElement.RoundLayoutValue(border.Left, dpi.DpiScaleX);
}
else
{
pen.Thickness = border.Left;
}
if (borderBrush.IsFrozen)
{
pen.Freeze();
}
LeftPenCache = pen;
}
double halfThickness;
if (border.IsUniform)
{
halfThickness = pen.Thickness * 0.5;
// Create rect w/ border thickness, and round if applying layout rounding.
Rect rect = new Rect(new Point(halfThickness, halfThickness),
new Point(RenderSize.Width - halfThickness, RenderSize.Height - halfThickness));
if (roundedCorners)
{
dc.DrawRoundedRectangle(
null,
pen,
rect,
outerCornerRadius,
outerCornerRadius);
}
else
{
dc.DrawRectangle(
null,
pen,
rect);
}
}
else
{
// Nonuniform border; stroke each edge.
if (DoubleUtil.GreaterThan(border.Left, 0))
{
halfThickness = pen.Thickness * 0.5;
dc.DrawLine(
pen,
new Point(halfThickness, 0),
new Point(halfThickness, RenderSize.Height));
}
if (DoubleUtil.GreaterThan(border.Right, 0))
{
pen = RightPenCache;
if (pen == null)
{
pen = new Pen();
pen.Brush = borderBrush;
if (useLayoutRounding)
{
pen.Thickness = UIElement.RoundLayoutValue(border.Right, dpi.DpiScaleX);
}
else
{
pen.Thickness = border.Right;
}
if (borderBrush.IsFrozen)
{
pen.Freeze();
}
RightPenCache = pen;
}
halfThickness = pen.Thickness * 0.5;
dc.DrawLine(
pen,
new Point(RenderSize.Width - halfThickness, 0),
new Point(RenderSize.Width - halfThickness, RenderSize.Height));
}
if (DoubleUtil.GreaterThan(border.Top, 0))
{
pen = TopPenCache;
if (pen == null)
{
pen = new Pen();
pen.Brush = borderBrush;
if (useLayoutRounding)
{
pen.Thickness = UIElement.RoundLayoutValue(border.Top, dpi.DpiScaleY);
}
else
{
pen.Thickness = border.Top;
}
if (borderBrush.IsFrozen)
{
pen.Freeze();
}
TopPenCache = pen;
}
halfThickness = pen.Thickness * 0.5;
dc.DrawLine(
pen,
new Point(0, halfThickness),
new Point(RenderSize.Width, halfThickness));
}
if (DoubleUtil.GreaterThan(border.Bottom, 0))
{
pen = BottomPenCache;
if (pen == null)
{
pen = new Pen();
pen.Brush = borderBrush;
if (useLayoutRounding)
{
pen.Thickness = UIElement.RoundLayoutValue(border.Bottom, dpi.DpiScaleY);
}
else
{
pen.Thickness = border.Bottom;
}
if (borderBrush.IsFrozen)
{
pen.Freeze();
}
BottomPenCache = pen;
}
halfThickness = pen.Thickness * 0.5;
dc.DrawLine(
pen,
new Point(0, RenderSize.Height - halfThickness),
new Point(RenderSize.Width, RenderSize.Height - halfThickness));
}
}
}
// Draw background in rectangle inside border.
Brush background = Background;
if (background != null)
{
// Intialize background
Point ptTL, ptBR;
if (useLayoutRounding)
{
ptTL = new Point(UIElement.RoundLayoutValue(border.Left, dpi.DpiScaleX),
UIElement.RoundLayoutValue(border.Top, dpi.DpiScaleY));
if (FrameworkAppContextSwitches.DoNotApplyLayoutRoundingToMarginsAndBorderThickness)
{
ptBR = new Point(UIElement.RoundLayoutValue(RenderSize.Width - border.Right, dpi.DpiScaleX),
UIElement.RoundLayoutValue(RenderSize.Height - border.Bottom, dpi.DpiScaleY));
}
else
{
ptBR = new Point(RenderSize.Width - UIElement.RoundLayoutValue(border.Right, dpi.DpiScaleX),
RenderSize.Height - UIElement.RoundLayoutValue(border.Bottom, dpi.DpiScaleY));
}
}
else
{
ptTL = new Point(border.Left, border.Top);
ptBR = new Point(RenderSize.Width - border.Right, RenderSize.Height - border.Bottom);
}
// Do not draw background if the borders are so large that they overlap.
if (ptBR.X > ptTL.X && ptBR.Y > ptTL.Y)
{
if (roundedCorners)
{
Radii innerRadii = new Radii(cornerRadius, border, false); // Determine the inner edge radius
double innerCornerRadius = innerRadii.TopLeft; // Already validated that all corners have the same radius
dc.DrawRoundedRectangle(background, null, new Rect(ptTL, ptBR), innerCornerRadius, innerCornerRadius);
}
else
{
dc.DrawRectangle(background, null, new Rect(ptTL, ptBR));
}
}
}
}
}
/// <summary>
/// Border computes the position of its single child and applies its child's alignments to the child.
///
/// </summary>
/// <param name="finalSize">The size reserved for this element by the parent</param>
/// <returns>The actual ink area of the element, typically the same as finalSize</returns>
protected override Size ArrangeOverride(Size finalSize)
{
Thickness borders = BorderThickness;
if (this.UseLayoutRounding && !FrameworkAppContextSwitches.DoNotApplyLayoutRoundingToMarginsAndBorderThickness)
{
DpiScale dpi = GetDpi();
borders = new Thickness(UIElement.RoundLayoutValue(borders.Left, dpi.DpiScaleX), UIElement.RoundLayoutValue(borders.Top, dpi.DpiScaleY),
UIElement.RoundLayoutValue(borders.Right, dpi.DpiScaleX), UIElement.RoundLayoutValue(borders.Bottom, dpi.DpiScaleY));
}
Rect boundRect = new Rect(finalSize);
Rect innerRect = HelperDeflateRect(boundRect, borders);
// arrange child
UIElement child = Child;
if (child != null)
{
Rect childRect = HelperDeflateRect(innerRect, Padding);
child.Arrange(childRect);
}
CornerRadius radii = CornerRadius;
Brush borderBrush = BorderBrush;
bool uniformCorners = AreUniformCorners(radii);
// decide which code path to execute. complex (geometry path based) rendering
// is used if one of the following is true:
// 1. there are non-uniform rounded corners
_useComplexRenderCodePath = !uniformCorners;
if (!_useComplexRenderCodePath &&
borderBrush != null)
{
SolidColorBrush originIndependentBrush = borderBrush as SolidColorBrush;
bool uniformBorders = borders.IsUniform;
_useComplexRenderCodePath =
// 2. the border brush is origin dependent (the only origin independent brush is a solid color brush)
(originIndependentBrush == null)
// 3. the border brush is semi-transtarent solid color brush AND border thickness is not uniform
// (for uniform semi-transparent border Border.OnRender draws rectangle outline - so it works fine)
|| ((originIndependentBrush.Color.A < 0xff) && !uniformBorders)
// 4. there are rounded corners AND the border thickness is not uniform
|| (!DoubleUtil.IsZero(radii.TopLeft) && !uniformBorders);
}
if (_useComplexRenderCodePath)
{
Radii innerRadii = new Radii(radii, borders, false);
StreamGeometry backgroundGeometry = null;
// calculate border / background rendering geometry
if (!DoubleUtil.IsZero(innerRect.Width) && !DoubleUtil.IsZero(innerRect.Height))
{
backgroundGeometry = new StreamGeometry();
using (StreamGeometryContext ctx = backgroundGeometry.Open())
{
GenerateGeometry(ctx, innerRect, innerRadii);
}
backgroundGeometry.Freeze();
BackgroundGeometryCache = backgroundGeometry;
}
else
{
BackgroundGeometryCache = null;
}
if (!DoubleUtil.IsZero(boundRect.Width) && !DoubleUtil.IsZero(boundRect.Height))
{
Radii outerRadii = new Radii(radii, borders, true);
StreamGeometry borderGeometry = new StreamGeometry();
using (StreamGeometryContext ctx = borderGeometry.Open())
{
GenerateGeometry(ctx, boundRect, outerRadii);
if (backgroundGeometry != null)
{
GenerateGeometry(ctx, innerRect, innerRadii);
}
}
borderGeometry.Freeze();
BorderGeometryCache = borderGeometry;
}
else
{
BorderGeometryCache = null;
}
}
else
{
BackgroundGeometryCache = null;
BorderGeometryCache = null;
}
return(finalSize);
}
/// <inheritdoc />
public override void Update(GameTime gameTime)
{
// In the demos, we use one time step per frame. We don't bother modifying the physics time step duration for different monitors so different refresh rates
// change the rate of simulation. This doesn't actually change the result of the simulation, though, and the simplicity is a good fit for the demos.
// In the context of a 'real' application, you could instead use a time accumulator to take time steps of fixed length as needed, or
// fully decouple simulation and rendering rates across different threads.
// (In either case, you'd also want to interpolate or extrapolate simulation results during rendering for smoothness.)
// Note that taking steps of variable length can reduce stability. Gradual or one-off changes can work reasonably well.
Simulation.Timestep(1 / 60f, ThreadDispatcher);
Camera.Update(gameTime);
if (Game.CurrentKeyboardState.IsKeyDown(Keys.Z) && CanShoot)
{
CanShoot = false;
// Create the shape that we'll launch at the pyramids when the user presses a button.
var radius = 0.5f + 5 * (float)Random.NextDouble();
var bulletShape = new Sphere(radius);
// Note that the use of radius^3 for mass can produce some pretty serious mass ratios.
// Observe what happens when a large ball sits on top of a few boxes with a fraction of the mass-
// the collision appears much squishier and less stable. For most games, if you want to maintain rigidity, you'll want to use some combination of:
// 1) Limit the ratio of heavy object masses to light object masses when those heavy objects depend on the light objects.
// 2) Use a shorter timestep duration and update more frequently.
// 3) Use a greater number of solver iterations.
// #2 and #3 can become very expensive. In pathological cases, it can end up slower than using a quality-focused solver for the same simulation.
// Unfortunately, at the moment, bepuphysics v2 does not contain any alternative solvers, so if you can't afford to brute force the the problem away,
// the best solution is to cheat as much as possible to avoid the corner cases.
var position = new NumericVector3(-40 + 210 * (float)Random.NextDouble(), 130, 130);
var bodyDescription = BodyDescription.CreateConvexDynamic(position,
new BodyVelocity(new NumericVector3((float)Random.NextDouble(), 0, -110)),
bulletShape.Radius * bulletShape.Radius * bulletShape.Radius, Simulation.Shapes, bulletShape);
var bodyHandle = Simulation.Bodies.Add(bodyDescription);
Radii.Add(radius);
SphereHandles.Add(bodyHandle);
}
if (Game.CurrentKeyboardState.IsKeyUp(Keys.Z))
{
CanShoot = true;
}
BoxesWorld.Clear();
var boxHandleCount = BoxHandles.Count;
for (var index = 0; index < boxHandleCount; index++)
{
var pose = Simulation.Bodies.GetBodyReference(BoxHandles[index]).Pose;
var position = pose.Position;
var quaternion = pose.Orientation;
var world =
Matrix.CreateFromQuaternion(new Quaternion(quaternion.X, quaternion.Y, quaternion.Z,
quaternion.W)) * Matrix.CreateTranslation(new Vector3(position.X, position.Y, position.Z));
BoxesWorld.Add(world);
}
SpheresWorld.Clear();
var sphereHandleCount = SphereHandles.Count;
for (var index = 0; index < sphereHandleCount; index++)
{
var pose = Simulation.Bodies.GetBodyReference(SphereHandles[index]).Pose;
var position = pose.Position;
var quaternion = pose.Orientation;
var world = Matrix.CreateScale(Radii[index]) *
Matrix.CreateFromQuaternion(new Quaternion(quaternion.X, quaternion.Y, quaternion.Z,
quaternion.W)) *
Matrix.CreateTranslation(new Vector3(position.X, position.Y, position.Z));
SpheresWorld.Add(world);
}
Game.Gizmos.UpdateViewProjection(Camera.View, Camera.Projection);
base.Update(gameTime);
}
/// <summary>
/// Generates a StreamGeometry.
/// </summary>
/// <param name="ctx">An already opened StreamGeometryContext.</param>
/// <param name="rect">Rectangle for geomentry conversion.</param>
/// <param name="radii">Corner radii.</param>
/// <returns>Result geometry.</returns>
private static void GenerateGeometry(StreamGeometryContext ctx, Rect rect, Radii radii)
{
//
// compute the coordinates of the key points
//
Point topLeft = new Point(radii.LeftTop, 0);
Point topRight = new Point(rect.Width - radii.RightTop, 0);
Point rightTop = new Point(rect.Width, radii.TopRight);
Point rightBottom = new Point(rect.Width, rect.Height - radii.BottomRight);
Point bottomRight = new Point(rect.Width - radii.RightBottom, rect.Height);
Point bottomLeft = new Point(radii.LeftBottom, rect.Height);
Point leftBottom = new Point(0, rect.Height - radii.BottomLeft);
Point leftTop = new Point(0, radii.TopLeft);
//
// check keypoints for overlap and resolve by partitioning radii according to
// the percentage of each one.
//
// top edge is handled here
if (topLeft.X > topRight.X)
{
double v = (radii.LeftTop) / (radii.LeftTop + radii.RightTop) * rect.Width;
topLeft.X = v;
topRight.X = v;
}
// right edge
if (rightTop.Y > rightBottom.Y)
{
double v = (radii.TopRight) / (radii.TopRight + radii.BottomRight) * rect.Height;
rightTop.Y = v;
rightBottom.Y = v;
}
// bottom edge
if (bottomRight.X < bottomLeft.X)
{
double v = (radii.LeftBottom) / (radii.LeftBottom + radii.RightBottom) * rect.Width;
bottomRight.X = v;
bottomLeft.X = v;
}
// left edge
if (leftBottom.Y < leftTop.Y)
{
double v = (radii.TopLeft) / (radii.TopLeft + radii.BottomLeft) * rect.Height;
leftBottom.Y = v;
leftTop.Y = v;
}
//
// add on offsets
//
Vector offset = new Vector(rect.TopLeft.X, rect.TopLeft.Y);
topLeft += offset;
topRight += offset;
rightTop += offset;
rightBottom += offset;
bottomRight += offset;
bottomLeft += offset;
leftBottom += offset;
leftTop += offset;
//
// create the border geometry
//
ctx.BeginFigure(topLeft, true /* is filled */, true /* is closed */);
// Top line
ctx.LineTo(topRight, true /* is stroked */, false /* is smooth join */);
// Upper-right corner
double radiusX = rect.TopRight.X - topRight.X;
double radiusY = rightTop.Y - rect.TopRight.Y;
if (!DoubleUtil.IsZero(radiusX)
|| !DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(rightTop, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Right line
ctx.LineTo(rightBottom, true /* is stroked */, false /* is smooth join */);
// Lower-right corner
radiusX = rect.BottomRight.X - bottomRight.X;
radiusY = rect.BottomRight.Y - rightBottom.Y;
if (!DoubleUtil.IsZero(radiusX)
|| !DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(bottomRight, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Bottom line
ctx.LineTo(bottomLeft, true /* is stroked */, false /* is smooth join */);
// Lower-left corner
radiusX = bottomLeft.X - rect.BottomLeft.X;
radiusY = rect.BottomLeft.Y - leftBottom.Y;
if (!DoubleUtil.IsZero(radiusX)
|| !DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(leftBottom, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Left line
ctx.LineTo(leftTop, true /* is stroked */, false /* is smooth join */);
// Upper-left corner
radiusX = topLeft.X - rect.TopLeft.X;
radiusY = leftTop.Y - rect.TopLeft.Y;
if (!DoubleUtil.IsZero(radiusX)
|| !DoubleUtil.IsZero(radiusY))
{
ctx.ArcTo(topLeft, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
}
/// <summary>
/// In addition to the child, Border renders a background + border. The background is drawn inside the border.
/// </summary>
protected override void OnRender(DrawingContext dc)
{
bool useLayoutRounding = this.UseLayoutRounding;
if (_useComplexRenderCodePath)
{
Brush brush;
StreamGeometry borderGeometry = BorderGeometryCache;
if ( borderGeometry != null
&& (brush = BorderBrush) != null )
{
dc.DrawGeometry(brush, null, borderGeometry);
}
StreamGeometry backgroundGeometry = BackgroundGeometryCache;
if ( backgroundGeometry != null
&& (brush = Background) != null )
{
dc.DrawGeometry(brush, null, backgroundGeometry);
}
}
else
{
Thickness border = BorderThickness;
Brush borderBrush;
CornerRadius cornerRadius = CornerRadius;
double outerCornerRadius = cornerRadius.TopLeft; // Already validated that all corners have the same radius
bool roundedCorners = !DoubleUtil.IsZero(outerCornerRadius);
// If we have a brush with which to draw the border, do so.
// NB: We double draw corners right now. Corner handling is tricky (bevelling, &c...) and
// we need a firm spec before doing "the right thing." (greglett, ffortes)
if (!border.IsZero
&& (borderBrush = BorderBrush) != null)
{
// Initialize the first pen. Note that each pen is created via new()
// and frozen if possible. Doing this avoids the pen
// being copied when used in the DrawLine methods.
Pen pen = LeftPenCache;
if (pen == null)
{
pen = new Pen();
pen.Brush = borderBrush;
if (useLayoutRounding)
{
pen.Thickness = UIElement.RoundLayoutValue(border.Left, FrameworkElement.DpiScaleX);
}
else
{
pen.Thickness = border.Left;
}
if (borderBrush.IsFrozen)
{
pen.Freeze();
}
LeftPenCache = pen;
}
double halfThickness;
if (border.IsUniform)
{
halfThickness = pen.Thickness * 0.5;
// Create rect w/ border thickness, and round if applying layout rounding.
Rect rect = new Rect(new Point(halfThickness, halfThickness),
new Point(RenderSize.Width - halfThickness, RenderSize.Height - halfThickness));
if (roundedCorners)
{
dc.DrawRoundedRectangle(
null,
pen,
rect,
outerCornerRadius,
outerCornerRadius);
}
else
{
dc.DrawRectangle(
null,
pen,
rect);
}
}
else
{
// Nonuniform border; stroke each edge.
if (DoubleUtil.GreaterThan(border.Left, 0))
{
halfThickness = pen.Thickness * 0.5;
dc.DrawLine(
pen,
new Point(halfThickness, 0),
new Point(halfThickness, RenderSize.Height));
}
if (DoubleUtil.GreaterThan(border.Right, 0))
{
pen = RightPenCache;
if (pen == null)
{
pen = new Pen();
pen.Brush = borderBrush;
if (useLayoutRounding)
{
pen.Thickness = UIElement.RoundLayoutValue(border.Right, FrameworkElement.DpiScaleX);
}
else
{
pen.Thickness = border.Right;
}
if (borderBrush.IsFrozen)
{
pen.Freeze();
}
RightPenCache = pen;
}
halfThickness = pen.Thickness * 0.5;
dc.DrawLine(
pen,
new Point(RenderSize.Width - halfThickness, 0),
new Point(RenderSize.Width - halfThickness, RenderSize.Height));
}
if (DoubleUtil.GreaterThan(border.Top, 0))
{
pen = TopPenCache;
if (pen == null)
{
pen = new Pen();
pen.Brush = borderBrush;
if (useLayoutRounding)
{
pen.Thickness = UIElement.RoundLayoutValue(border.Top, FrameworkElement.DpiScaleY);
}
else
{
pen.Thickness = border.Top;
}
if (borderBrush.IsFrozen)
{
pen.Freeze();
}
TopPenCache = pen;
}
halfThickness = pen.Thickness * 0.5;
dc.DrawLine(
pen,
new Point(0, halfThickness),
new Point(RenderSize.Width, halfThickness));
}
if (DoubleUtil.GreaterThan(border.Bottom, 0))
{
pen = BottomPenCache;
if (pen == null)
{
pen = new Pen();
pen.Brush = borderBrush;
if (useLayoutRounding)
{
pen.Thickness = UIElement.RoundLayoutValue(border.Bottom, FrameworkElement.DpiScaleY);
}
else
{
pen.Thickness = border.Bottom;
}
if (borderBrush.IsFrozen)
{
pen.Freeze();
}
BottomPenCache = pen;
}
halfThickness = pen.Thickness * 0.5;
dc.DrawLine(
pen,
new Point(0, RenderSize.Height - halfThickness),
new Point(RenderSize.Width, RenderSize.Height - halfThickness));
}
}
}
// Draw background in rectangle inside border.
Brush background = Background;
if (background != null)
{
// Intialize background
Point ptTL, ptBR;
if (useLayoutRounding)
{
ptTL = new Point(UIElement.RoundLayoutValue(border.Left, FrameworkElement.DpiScaleX),
UIElement.RoundLayoutValue(border.Top, FrameworkElement.DpiScaleY));
ptBR = new Point(UIElement.RoundLayoutValue(RenderSize.Width - border.Right, FrameworkElement.DpiScaleX),
UIElement.RoundLayoutValue(RenderSize.Height - border.Bottom, FrameworkElement.DpiScaleY));
}
else
{
ptTL = new Point(border.Left, border.Top);
ptBR = new Point(RenderSize.Width - border.Right, RenderSize.Height - border.Bottom);
}
// Do not draw background if the borders are so large that they overlap.
if (ptBR.X > ptTL.X && ptBR.Y > ptTL.Y)
{
if (roundedCorners)
{
Radii innerRadii = new Radii(cornerRadius, border, false); // Determine the inner edge radius
double innerCornerRadius = innerRadii.TopLeft; // Already validated that all corners have the same radius
dc.DrawRoundedRectangle(background, null, new Rect(ptTL, ptBR), innerCornerRadius, innerCornerRadius);
}
else
{
dc.DrawRectangle(background, null, new Rect(ptTL, ptBR));
}
}
}
}
}
/// <summary>
/// Border computes the position of its single child and applies its child's alignments to the child.
///
/// </summary>
/// <param name="finalSize">The size reserved for this element by the parent</param>
/// <returns>The actual ink area of the element, typically the same as finalSize</returns>
protected override Size ArrangeOverride(Size finalSize)
{
Thickness borders = BorderThickness;
Rect boundRect = new Rect(finalSize);
Rect innerRect = HelperDeflateRect(boundRect, borders);
// arrange child
UIElement child = Child;
if (child != null)
{
Rect childRect = HelperDeflateRect(innerRect, Padding);
child.Arrange(childRect);
}
CornerRadius radii = CornerRadius;
Brush borderBrush = BorderBrush;
bool uniformCorners = AreUniformCorners(radii);
// decide which code path to execute. complex (geometry path based) rendering
// is used if one of the following is true:
// 1. there are non-uniform rounded corners
_useComplexRenderCodePath = !uniformCorners;
if ( !_useComplexRenderCodePath
&& borderBrush != null )
{
SolidColorBrush originIndependentBrush = borderBrush as SolidColorBrush;
bool uniformBorders = borders.IsUniform;
_useComplexRenderCodePath =
// 2. the border brush is origin dependent (the only origin independent brush is a solid color brush)
(originIndependentBrush == null)
// 3. the border brush is semi-transtarent solid color brush AND border thickness is not uniform
// (for uniform semi-transparent border Border.OnRender draws rectangle outline - so it works fine)
|| ((originIndependentBrush.Color.A < 0xff) && !uniformBorders)
// 4. there are rounded corners AND the border thickness is not uniform
|| (!DoubleUtil.IsZero(radii.TopLeft) && !uniformBorders);
}
if (_useComplexRenderCodePath)
{
Radii innerRadii = new Radii(radii, borders, false);
StreamGeometry backgroundGeometry = null;
// calculate border / background rendering geometry
if (!DoubleUtil.IsZero(innerRect.Width) && !DoubleUtil.IsZero(innerRect.Height))
{
backgroundGeometry = new StreamGeometry();
using (StreamGeometryContext ctx = backgroundGeometry.Open())
{
GenerateGeometry(ctx, innerRect, innerRadii);
}
backgroundGeometry.Freeze();
BackgroundGeometryCache = backgroundGeometry;
}
else
{
BackgroundGeometryCache = null;
}
if (!DoubleUtil.IsZero(boundRect.Width) && !DoubleUtil.IsZero(boundRect.Height))
{
Radii outerRadii = new Radii(radii, borders, true);
StreamGeometry borderGeometry = new StreamGeometry();
using (StreamGeometryContext ctx = borderGeometry.Open())
{
GenerateGeometry(ctx, boundRect, outerRadii);
if (backgroundGeometry != null)
{
GenerateGeometry(ctx, innerRect, innerRadii);
}
}
borderGeometry.Freeze();
BorderGeometryCache = borderGeometry;
}
else
{
BorderGeometryCache = null;
}
}
else
{
BackgroundGeometryCache = null;
BorderGeometryCache = null;
}
return (finalSize);
}
public Element()
{
this.RadiusConstants = new Radii(this);
}
public RainbowCircleSudoku()
{
Alphabet = Enumerable.Range(1, 12);
Cells = Angles.SelectMany(t => Radii.Select(r => $"{t}{r}"));
Conditions = Rings.Concat(Wedges).Concat(Across);
}
/// <summary>
/// Border computes the position of its single child and applies its child's alignments to the child.
/// </summary>
/// <param name="finalSize">The size reserved for this element by the parent</param>
/// <returns>The actual ink area of the element, typically the same as finalSize</returns>
protected override Size ArrangeOverride(Size finalSize)
{
var borders = BorderThickness;
if (UseLayoutRounding)
{
var dpi = DpiUtil.GetDpi(this);
borders = new Thickness(UIElementUtil.RoundLayoutValue(borders.Left, dpi.DpiScaleX), UIElementUtil.RoundLayoutValue(borders.Top, dpi.DpiScaleY),
UIElementUtil.RoundLayoutValue(borders.Right, dpi.DpiScaleX), UIElementUtil.RoundLayoutValue(borders.Bottom, dpi.DpiScaleY));
}
var boundRect = new Rect(finalSize);
var innerRect = RectUtil.Deflate(boundRect, borders);
// arrange child
var child = Child;
if (child != null)
{
Rect childRect = RectUtil.Deflate(innerRect, Padding);
child.Arrange(childRect);
}
var radius = CornerRadius;
useComplexRender = !CornerRadiusUtil.IsUniform(radius) || !ThicknessUtil.IsUniform(borders);
backgroundGeometryCache = upperLeftCache = upperRightCache = lowerRightCache = lowerLeftCache = null;
if (useComplexRender)
{
// calculate border / background rendering geometry
if (!DoubleUtil.IsZero(boundRect.Width) && !DoubleUtil.IsZero(boundRect.Height))
{
var outerRadii = new Radii(boundRect, radius, borders, true);
// Upper-right corner
var radiusX = boundRect.TopRight.X - outerRadii.TopRight.X;
var radiusY = outerRadii.RightTop.Y - boundRect.TopRight.Y;
if (!DoubleUtil.IsZero(radiusX) || !DoubleUtil.IsZero(radiusY))
{
upperRightCache = GenerateRoundedGeometry(outerRadii.TopRight, outerRadii.RightTop, new Size(radiusX, radiusY));
}
// Lower-right corner
radiusX = boundRect.BottomRight.X - outerRadii.BottomRight.X;
radiusY = boundRect.BottomRight.Y - outerRadii.RightBottom.Y;
if (!DoubleUtil.IsZero(radiusX) || !DoubleUtil.IsZero(radiusY))
{
lowerRightCache = GenerateRoundedGeometry(outerRadii.RightBottom, outerRadii.BottomRight, new Size(radiusX, radiusY));
}
// Lower-left corner
radiusX = outerRadii.BottomLeft.X - boundRect.BottomLeft.X;
radiusY = boundRect.BottomLeft.Y - outerRadii.LeftBottom.Y;
if (!DoubleUtil.IsZero(radiusX) || !DoubleUtil.IsZero(radiusY))
{
lowerLeftCache = GenerateRoundedGeometry(outerRadii.BottomLeft, outerRadii.LeftBottom, new Size(radiusX, radiusY));
}
// Upper-left corner
radiusX = outerRadii.TopLeft.X - boundRect.TopLeft.X;
radiusY = outerRadii.LeftTop.Y - boundRect.TopLeft.Y;
if (!DoubleUtil.IsZero(radiusX) || !DoubleUtil.IsZero(radiusY))
{
upperLeftCache = GenerateRoundedGeometry(outerRadii.LeftTop, outerRadii.TopLeft, new Size(radiusX, radiusY));
}
}
if (!DoubleUtil.IsZero(innerRect.Width) && !DoubleUtil.IsZero(innerRect.Height))
{
var innerRadii = new Radii(innerRect, radius, borders, false);
var backgroundGeometry = new StreamGeometry();
using (StreamGeometryContext sc = backgroundGeometry.Open())
{
// create the border geometry
sc.BeginFigure(innerRadii.TopLeft, true /* is filled */, true /* is closed */);
// Top line
sc.LineTo(innerRadii.TopRight, true /* is stroked */, false /* is smooth join */);
// Upper-right corners
var radiusX = innerRect.TopRight.X - innerRadii.TopRight.X;
var radiusY = innerRadii.RightTop.Y - innerRect.TopRight.Y;
if (!DoubleUtil.IsZero(radiusX) || !DoubleUtil.IsZero(radiusY))
{
sc.ArcTo(innerRadii.RightTop, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Right line
sc.LineTo(innerRadii.RightBottom, true /* is stroked */, false /* is smooth join */);
// Lower-right corners
radiusX = innerRect.BottomRight.X - innerRadii.BottomRight.X;
radiusY = innerRect.BottomRight.Y - innerRadii.RightBottom.Y;
if (!DoubleUtil.IsZero(radiusX) || !DoubleUtil.IsZero(radiusY))
{
sc.ArcTo(innerRadii.BottomRight, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Bottom line
sc.LineTo(innerRadii.BottomLeft, true /* is stroked */, false /* is smooth join */);
// Lower-left corners
radiusX = innerRadii.BottomLeft.X - innerRect.BottomLeft.X;
radiusY = innerRect.BottomLeft.Y - innerRadii.LeftBottom.Y;
if (!DoubleUtil.IsZero(radiusX) || !DoubleUtil.IsZero(radiusY))
{
sc.ArcTo(innerRadii.LeftBottom, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
// Left line
sc.LineTo(innerRadii.LeftTop, true /* is stroked */, false /* is smooth join */);
// Upper-left corners
radiusX = innerRadii.TopLeft.X - innerRect.TopLeft.X;
radiusY = innerRadii.LeftTop.Y - innerRect.TopLeft.Y;
if (!DoubleUtil.IsZero(radiusX) || !DoubleUtil.IsZero(radiusY))
{
sc.ArcTo(innerRadii.TopLeft, new Size(radiusX, radiusY), 0, false, SweepDirection.Clockwise, true, false);
}
}
backgroundGeometry.Freeze();
backgroundGeometryCache = backgroundGeometry;
}
}
return(finalSize);
}
