internal static CanvasGeometry GenerateGeometry(CanvasDevice device, Size size, CompositionPathInfo info, Vector2 offset)
{
//
// |--LeftTop----------------------RightTop--|
// | |
// TopLeft TopRight
// | |
// | |
// | |
// | |
// | |
// | |
// BottomLeft BottomRight
// | |
// |--LeftBottom----------------RightBottom--|
//
// compute the coordinates of the key points
var leftTop = new Vector2(info.LeftTop.Single(), 0);
var rightTop = new Vector2((size.Width - info.RightTop).Single(), 0);
var topRight = new Vector2(size.Width.Single(), info.TopRight.Single());
var bottomRight = new Vector2(size.Width.Single(), (size.Height - info.BottomRight).Single());
var rightBottom = new Vector2((size.Width - info.RightBottom).Single(), size.Height.Single());
var leftBottom = new Vector2(info.LeftBottom.Single(), size.Height.Single());
var bottomLeft = new Vector2(0, (size.Height - info.BottomLeft).Single());
var topLeft = new Vector2(0, info.TopLeft.Single());
// check keypoints for overlap and resolve by partitioning corners according to
// the percentage of each one.
// top edge
if (leftTop.X > rightTop.X)
{
var v = ((info.LeftTop) / (info.LeftTop + info.RightTop) * size.Width).Single();
leftTop.X = v;
rightTop.X = v;
}
// right edge
if (topRight.Y > bottomRight.Y)
{
var v = ((info.TopRight) / (info.TopRight + info.BottomRight) * size.Height).Single();
topRight.Y = v;
bottomRight.Y = v;
}
// bottom edge
if (leftBottom.X > rightBottom.X)
{
var v = ((info.LeftBottom) / (info.LeftBottom + info.RightBottom) * size.Width).Single();
rightBottom.X = v;
leftBottom.X = v;
}
// left edge
if (topLeft.Y > bottomLeft.Y)
{
var v = ((info.TopLeft) / (info.TopLeft + info.BottomLeft) * size.Height).Single();
bottomLeft.Y = v;
topLeft.Y = v;
}
// Apply offset
leftTop += offset;
rightTop += offset;
topRight += offset;
bottomRight += offset;
rightBottom += offset;
leftBottom += offset;
bottomLeft += offset;
topLeft += offset;
// create the border geometry
var pathBuilder = new CanvasPathBuilder(device);
// Begin path
pathBuilder.BeginFigure(leftTop);
// Top line
pathBuilder.AddLine(rightTop);
// Upper-right corners
var radiusX = size.Width - rightTop.X;
var radiusY = (double)topRight.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
pathBuilder.AddArc(topRight, radiusX.Single(), radiusY.Single(), (Math.PI / 2f).Single(),
CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
}
// Right line
pathBuilder.AddLine(bottomRight);
// Lower-right corners
radiusX = size.Width - rightBottom.X;
radiusY = size.Height - bottomRight.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
pathBuilder.AddArc(rightBottom, radiusX.Single(), radiusY.Single(), (Math.PI / 2f).Single(),
CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
}
// Bottom line
pathBuilder.AddLine(leftBottom);
// Lower-left corners
radiusX = leftBottom.X;
radiusY = size.Height - bottomLeft.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
pathBuilder.AddArc(bottomLeft, radiusX.Single(), radiusY.Single(), (Math.PI / 2f).Single(),
CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
}
// Left line
pathBuilder.AddLine(topLeft);
// Upper-left corners
radiusX = leftTop.X;
radiusY = topLeft.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
pathBuilder.AddArc(leftTop, radiusX.Single(), radiusY.Single(), (Math.PI / 2f).Single(),
CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
}
// End path
pathBuilder.EndFigure(CanvasFigureLoop.Closed);
return(CanvasGeometry.CreatePath(pathBuilder));
}
internal static CanvasGeometry GenerateGeometry(CanvasDevice device, Size size, CompositionPathInfo info, Vector2 offset)
{
//
// |--LeftTop----------------------RightTop--|
// | |
// TopLeft TopRight
// | |
// | |
// | |
// | |
// | |
// | |
// BottomLeft BottomRight
// | |
// |--LeftBottom----------------RightBottom--|
//
// compute the coordinates of the key points
var leftTop = new Vector2(info.LeftTop.Single(), 0);
var rightTop = new Vector2((size.Width - info.RightTop).Single(), 0);
var topRight = new Vector2(size.Width.Single(), info.TopRight.Single());
var bottomRight = new Vector2(size.Width.Single(), (size.Height - info.BottomRight).Single());
var rightBottom = new Vector2((size.Width - info.RightBottom).Single(), size.Height.Single());
var leftBottom = new Vector2(info.LeftBottom.Single(), size.Height.Single());
var bottomLeft = new Vector2(0, (size.Height - info.BottomLeft).Single());
var topLeft = new Vector2(0, info.TopLeft.Single());
// check keypoints for overlap and resolve by partitioning corners according to
// the percentage of each one.
// top edge
if (leftTop.X > rightTop.X)
{
var v = ((info.LeftTop) / (info.LeftTop + info.RightTop) * size.Width).Single();
leftTop.X = v;
rightTop.X = v;
}
// right edge
if (topRight.Y > bottomRight.Y)
{
var v = ((info.TopRight) / (info.TopRight + info.BottomRight) * size.Height).Single();
topRight.Y = v;
bottomRight.Y = v;
}
// bottom edge
if (leftBottom.X > rightBottom.X)
{
var v = ((info.LeftBottom) / (info.LeftBottom + info.RightBottom) * size.Width).Single();
rightBottom.X = v;
leftBottom.X = v;
}
// left edge
if (topLeft.Y > bottomLeft.Y)
{
var v = ((info.TopLeft) / (info.TopLeft + info.BottomLeft) * size.Height).Single();
bottomLeft.Y = v;
topLeft.Y = v;
}
// Apply offset
leftTop += offset;
rightTop += offset;
topRight += offset;
bottomRight += offset;
rightBottom += offset;
leftBottom += offset;
bottomLeft += offset;
topLeft += offset;
// create the border geometry
var pathBuilder = new CanvasPathBuilder(device);
// Begin path
pathBuilder.BeginFigure(leftTop);
// Top line
pathBuilder.AddLine(rightTop);
// Upper-right corners
var radiusX = size.Width - rightTop.X;
var radiusY = (double)topRight.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
pathBuilder.AddArc(topRight, radiusX.Single(), radiusY.Single(), (Math.PI / 2f).Single(),
CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
}
// Right line
pathBuilder.AddLine(bottomRight);
// Lower-right corners
radiusX = size.Width - rightBottom.X;
radiusY = size.Height - bottomRight.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
pathBuilder.AddArc(rightBottom, radiusX.Single(), radiusY.Single(), (Math.PI / 2f).Single(),
CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
}
// Bottom line
pathBuilder.AddLine(leftBottom);
// Lower-left corners
radiusX = leftBottom.X;
radiusY = size.Height - bottomLeft.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
pathBuilder.AddArc(bottomLeft, radiusX.Single(), radiusY.Single(), (Math.PI / 2f).Single(),
CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
}
// Left line
pathBuilder.AddLine(topLeft);
// Upper-left corners
radiusX = leftTop.X;
radiusY = topLeft.Y;
if (!radiusX.IsZero() || !radiusY.IsZero())
{
pathBuilder.AddArc(leftTop, radiusX.Single(), radiusY.Single(), (Math.PI / 2f).Single(),
CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
}
// End path
pathBuilder.EndFigure(CanvasFigureLoop.Closed);
return CanvasGeometry.CreatePath(pathBuilder);
}