/// <summary>
/// Helper method to create the tail of the bubble, so we can also calculate the bounds
/// </summary>
/// <returns></returns>
private GraphicsPath CreateTail()
{
Rectangle rect = GuiRectangle.GetGuiRectangle(Left, Top, Width, Height);
int tailLength = GeometryHelper.Distance2D(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2), TargetGripper.Left, TargetGripper.Top);
int tailWidth = (Math.Abs(rect.Width) + Math.Abs(rect.Height)) / 20;
// This should fix a problem with the tail being to wide
tailWidth = Math.Min(Math.Abs(rect.Width) / 2, tailWidth);
tailWidth = Math.Min(Math.Abs(rect.Height) / 2, tailWidth);
GraphicsPath tail = new GraphicsPath();
tail.AddLine(-tailWidth, 0, tailWidth, 0);
tail.AddLine(tailWidth, 0, 0, -tailLength);
tail.CloseFigure();
int tailAngle = 90 + (int)GeometryHelper.Angle2D(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2), TargetGripper.Left, TargetGripper.Top);
using (Matrix tailMatrix = new Matrix())
{
tailMatrix.Translate(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2));
tailMatrix.Rotate(tailAngle);
tail.Transform(tailMatrix);
}
return(tail);
}
/// <summary>
/// Helper method to create the tail of the bubble, so we can also calculate the bounds
/// </summary>
/// <returns></returns>
private GraphicsPath CreateTail()
{
var rect = new NativeRect(Left, Top, Width, Height).Normalize();
var tailLength = GeometryHelper.Distance2D(rect.Left + rect.Width / 2, rect.Top + rect.Height / 2, TargetAdorner.Location.X, TargetAdorner.Location.Y);
var tailWidth = (Math.Abs(rect.Width) + Math.Abs(rect.Height)) / 20;
// This should fix a problem with the tail being to wide
tailWidth = Math.Min(Math.Abs(rect.Width) / 2, tailWidth);
tailWidth = Math.Min(Math.Abs(rect.Height) / 2, tailWidth);
var tail = new GraphicsPath();
tail.AddLine(-tailWidth, 0, tailWidth, 0);
tail.AddLine(tailWidth, 0, 0, -tailLength);
tail.CloseFigure();
var tailAngle = 90 + (int)GeometryHelper.Angle2D(rect.Left + rect.Width / 2, rect.Top + rect.Height / 2, TargetAdorner.Location.X, TargetAdorner.Location.Y);
using (var tailMatrix = new Matrix())
{
tailMatrix.Translate(rect.Left + rect.Width / 2, rect.Top + rect.Height / 2);
tailMatrix.Rotate(tailAngle);
tail.Transform(tailMatrix);
}
return(tail);
}
public override void Draw(Graphics graphics, RenderMode renderMode)
{
if (TargetGripper == null)
{
return;
}
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.PixelOffsetMode = PixelOffsetMode.None;
graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
Color lineColor = GetFieldValueAsColor(FieldType.LINE_COLOR);
Color fillColor = GetFieldValueAsColor(FieldType.FILL_COLOR);
int lineThickness = GetFieldValueAsInt(FieldType.LINE_THICKNESS);
bool lineVisible = (lineThickness > 0 && Colors.IsVisible(lineColor));
Rectangle rect = GuiRectangle.GetGuiRectangle(Left, Top, Width, Height);
if (Selected && renderMode == RenderMode.EDIT)
{
DrawSelectionBorder(graphics, rect);
}
int tailAngle = 90 + (int)GeometryHelper.Angle2D(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2), TargetGripper.Left, TargetGripper.Top);
int tailLength = GeometryHelper.Distance2D(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2), TargetGripper.Left, TargetGripper.Top);
int tailWidth = (Math.Abs(rect.Width) + Math.Abs(rect.Height)) / 20;
GraphicsPath bubble = new GraphicsPath();
// adapt corner radius to small rectangle dimensions
int smallerSideLength = Math.Min(rect.Width, rect.Height);
int cornerRadius = smallerSideLength > 60 ? 30 : smallerSideLength / 2;
if (cornerRadius > 5)
{
Rectangle bubbleRect = GuiRectangle.GetGuiRectangle(0, 0, rect.Width, rect.Height);
bubbleRect = Rectangle.Inflate(bubbleRect, -lineThickness, -lineThickness);
bubble.AddArc(bubbleRect.X, bubbleRect.Y, cornerRadius, cornerRadius, 180, 90);
bubble.AddArc(bubbleRect.X + bubbleRect.Width - cornerRadius, bubbleRect.Y, cornerRadius, cornerRadius, 270, 90);
bubble.AddArc(bubbleRect.X + bubbleRect.Width - cornerRadius, bubbleRect.Y + bubbleRect.Height - cornerRadius, cornerRadius, cornerRadius, 0, 90);
bubble.AddArc(bubbleRect.X, bubbleRect.Y + bubbleRect.Height - cornerRadius, cornerRadius, cornerRadius, 90, 90);
}
//bubble.AddRectangle(GuiRectangle.GetGuiRectangle(0, 0, rect.Width, rect.Height));
//bubble.AddEllipse(0, 0, Math.Abs(rect.Width), Math.Abs(rect.Height));
bubble.CloseAllFigures();
GraphicsPath tail = new GraphicsPath();
tail.AddLine(-tailWidth, 0, tailWidth, 0);
tail.AddLine(tailWidth, 0, 0, -tailLength);
tail.CloseFigure();
GraphicsState state = graphics.Save();
// draw the tail border where the bubble is not visible
using (Region clipRegion = new Region(bubble))
{
clipRegion.Translate(rect.Left, rect.Top);
graphics.SetClip(clipRegion, CombineMode.Exclude);
graphics.TranslateTransform(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2));
graphics.RotateTransform(tailAngle);
using (Pen pen = new Pen(lineColor, lineThickness))
{
graphics.DrawPath(pen, tail);
}
}
graphics.Restore(state);
if (Colors.IsVisible(fillColor))
{
//draw the bubbleshape
state = graphics.Save();
graphics.TranslateTransform(rect.Left, rect.Top);
using (Brush brush = new SolidBrush(fillColor))
{
graphics.FillPath(brush, bubble);
}
graphics.Restore(state);
}
if (lineVisible)
{
//draw the bubble border
state = graphics.Save();
// Draw bubble where the Tail is not visible.
using (Region clipRegion = new Region(tail))
{
using (Matrix transformMatrix = new Matrix())
{
transformMatrix.Rotate(tailAngle);
clipRegion.Transform(transformMatrix);
}
clipRegion.Translate(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2));
graphics.SetClip(clipRegion, CombineMode.Exclude);
graphics.TranslateTransform(rect.Left, rect.Top);
using (Pen pen = new Pen(lineColor, lineThickness))
{
//pen.EndCap = pen.StartCap = LineCap.Round;
graphics.DrawPath(pen, bubble);
}
}
graphics.Restore(state);
}
if (Colors.IsVisible(fillColor))
{
// Draw the tail border
state = graphics.Save();
graphics.TranslateTransform(rect.Left + (rect.Width / 2), rect.Top + (rect.Height / 2));
graphics.RotateTransform(tailAngle);
using (Brush brush = new SolidBrush(fillColor))
{
graphics.FillPath(brush, tail);
}
graphics.Restore(state);
}
// cleanup the paths
bubble.Dispose();
tail.Dispose();
// Draw the text
UpdateFormat();
DrawText(graphics, rect, lineThickness, ControlPaint.Dark(lineColor, 0.25f), false, StringFormat, Text, Font);
}
