/// <summary>
/// Clear the selection buffer.
/// </summary>
/// <param name="selectionInfo">selection info</param>
public void ClearSelectionBuffer(SelectionInformation selectionInfo)
{
if (selectionInfo.SelectedNetList.Count > 0)
{
selectionInfo.ClearSelectionList();
}
}
public static void DrawImageToTarget(Graphics graphics, SelectionInformation selectionInfo, GerberUserTransform userTransform,
Color foreGroundColor, Color backGroundColor)
{
bool invert = false;
RenderToTarget(graphics, selectionInfo.SelectionImage, selectionInfo.SelectedNetList, userTransform, foreGroundColor, backGroundColor, invert);
}
/// <summary>
/// Adds a gerber object to the selection buffer if it lies within the selection region.
/// </summary>
/// <param name="selectionInfo">current selection info</param>
/// <param name="image">gerber image containing the net</param>
/// <param name="net">net to add to the selection info</param>
public void ObjectInSelectedRegion(SelectionInformation selectionInfo, ref int i, Graphics graphics)
{
bool inSelect = false;
GerberImage image = selectionInfo.SelectionImage;
GerberNet net = image.GerberNetList[i];
float x1 = (float)selectionInfo.LowerLeftX;
float y1 = (float)selectionInfo.LowerLeftY;
float x2 = (float)selectionInfo.UpperRightX;
float y2 = (float)selectionInfo.UpperRightY;
if (selectionInfo.SelectionType == GerberSelection.PointClick)
{
if (net.BoundingBox != null)
{
if (!net.BoundingBox.Contains(new PointD(x1, y1)))
{
return;
}
if (net.ApertureState == GerberApertureState.Flash)
{
inSelect = net.BoundingBox.Contains(new PointD(x1, y1));
}
else if (net.ApertureState == GerberApertureState.On)
{
switch (net.Interpolation)
{
case GerberInterpolation.PolygonAreaStart:
inSelect = net.BoundingBox.Contains(new PointD(x1, y1));
break;
case GerberInterpolation.LinearX10:
case GerberInterpolation.LinearX1:
case GerberInterpolation.LinearX01:
case GerberInterpolation.LinearX001:
using (GraphicsPath gp = new GraphicsPath())
using (Pen pen = new Pen(Color.Transparent))
{
pen.Width = (float)image.ApertureArray[net.Aperture].Parameters[0];
pen.StartCap = pen.EndCap = LineCap.Round;
PointF start = new PointF((float)(net.StartX), (float)(net.StartY));
PointF end = new PointF((float)(net.StopX), (float)(net.StopY));
gp.AddLine(start, end);
if (gp.IsOutlineVisible(new PointF(x1, y1), pen, graphics))
{
inSelect = true;
}
break;
}
case GerberInterpolation.ClockwiseCircular:
case GerberInterpolation.CounterClockwiseCircular:
using (GraphicsPath gp = new GraphicsPath())
using (Pen pen = new Pen(Color.Transparent))
{
float centerX = (float)net.CircleSegment.CenterX;
float centerY = (float)net.CircleSegment.CenterY;
float width = (float)net.CircleSegment.Width;
float height = (float)net.CircleSegment.Height;
float startAngle = (float)net.CircleSegment.StartAngle;
float sweepAngle = (float)net.CircleSegment.SweepAngle;
if (image.ApertureArray[net.Aperture].ApertureType == GerberApertureType.Rectangle)
{
pen.StartCap = pen.EndCap = LineCap.Square;
}
else
{
pen.StartCap = pen.EndCap = LineCap.Round;
}
RectangleF arcRectangle = new RectangleF(centerX - (width / 2), centerY - (height / 2), width, height);
pen.Width = width;
gp.AddArc(arcRectangle, startAngle, sweepAngle);
if (gp.IsOutlineVisible(new PointF(x1, y1), pen, graphics))
{
inSelect = true;
}
}
break;
}
}
}
}
else if (selectionInfo.SelectionType == GerberSelection.DragBox)
{
if (net.BoundingBox != null)
{
double left = Math.Min(selectionInfo.LowerLeftX, selectionInfo.UpperRightX);
double right = Math.Max(selectionInfo.LowerLeftX, selectionInfo.UpperRightX);
double top = Math.Min(selectionInfo.LowerLeftY, selectionInfo.UpperRightY);
double bottom = Math.Max(selectionInfo.LowerLeftY, selectionInfo.UpperRightY);
BoundingBox box = new BoundingBox(left, bottom, right, top);
if (!box.Contains(net.BoundingBox))
{
return;
}
if (net.ApertureState == GerberApertureState.Flash)
{
inSelect = box.Contains(net.BoundingBox);
}
else if (net.ApertureState == GerberApertureState.On)
{
inSelect = box.Contains(net.BoundingBox);
}
}
}
if (inSelect)
{
selectionInfo.SelectedNetList.Add(net);
selectionInfo.SelectionCount++;
if (net.Interpolation == GerberInterpolation.PolygonAreaStart) // Add all the poly points.
{
do
{
i++;
net = image.GerberNetList[i];
selectionInfo.SelectedNetList.Add(net);
} while (net.Interpolation != GerberInterpolation.PolygonAreaEnd);
}
}
}
/// <summary>
/// Draw the user selection layer;
/// </summary>
/// <param name="graphics">surface to render the image</param>
/// <param name="project">project containing the files to render</param>
/// <param name="renderInfo">information for positioning, scaling and translating</param>
/// <param name="selectionInfo">information about the users selection</param>
public void RenderSelectionLayer(Graphics graphics, GerberProject project, RenderInformation renderInfo, SelectionInformation selectionInfo)
{
int bmWidth = 0;
int bmHeight = 0;
// Calculate how big to make the bitmap back buffer.
if (renderInfo.ImageWidth < renderInfo.DisplayWidth)
{
bmWidth = (int)(renderInfo.DisplayWidth * graphics.DpiX);
}
else
{
bmWidth = (int)(renderInfo.ImageWidth * graphics.DpiX);
}
if (renderInfo.ImageHeight < renderInfo.DisplayHeight)
{
bmHeight = (int)(renderInfo.DisplayHeight * graphics.DpiY);
}
else
{
bmHeight = (int)(renderInfo.ImageHeight * graphics.DpiY);
}
// Create a back buffer and draw to it with no alpha level.
using (Bitmap bitmap = new Bitmap(bmWidth, bmHeight, graphics))
using (Graphics backBuffer = Graphics.FromImage(bitmap))
{
backBuffer.CompositingMode = CompositingMode.SourceOver;
ScaleAndTranslate(backBuffer, renderInfo);
Color foregroundColor = Color.FromArgb(177, Color.White);
GerberDraw.DrawImageToTarget(backBuffer, selectionInfo, project.UserTransform, foregroundColor, backgroundColor);
// Copy the back buffer to the visible surface with alpha level.
graphics.CompositingMode = CompositingMode.SourceOver;
graphics.DrawImage(bitmap, 0, 0);
}
}