/// <summary>
/// Determine if the specified screen point lies inside the bounding box of this
/// <see cref="TextObj"/>. This method takes into account rotation and alignment
/// parameters of the text, as specified in the <see cref="FontSpec"/>.
/// </summary>
/// <param name="pt">The screen point, in pixels</param>
/// <param name="pane">
/// A reference to the <see cref="PaneBase"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the
/// PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
/// <returns>true if the point lies in the bounding box, false otherwise</returns>
override public bool PointInBox(PointF pt, PaneBase pane, Graphics g, float scaleFactor)
{
if (!base.PointInBox(pt, pane, g, scaleFactor))
{
return(false);
}
// transform the x,y location from the user-defined
// coordinate frame to the screen pixel location
PointF pix = Location.Transform(pane);
return(_fontSpec.PointInBox(pt, g, _text, pix.X, pix.Y,
Location.AlignH, Location.AlignV, scaleFactor, this.LayoutArea));
}
/// <summary>
/// Determines the shape type and Coords values for this GraphObj
/// </summary>
override public void GetCoords(PaneBase pane, Graphics g, float scaleFactor,
out string shape, out string coords)
{
// transform the x,y location from the user-defined
// coordinate frame to the screen pixel location
PointF pix = Location.Transform(pane);
PointF[] pts = _fontSpec.GetBox(g, _text, pix.X, pix.Y, Location.AlignH,
Location.AlignV, scaleFactor, new SizeF());
shape = "poly";
coords = String.Format("{0:f0},{1:f0},{2:f0},{3:f0},{4:f0},{5:f0},{6:f0},{7:f0},",
pts[0].X, pts[0].Y, pts[1].X, pts[1].Y,
pts[2].X, pts[2].Y, pts[3].X, pts[3].Y);
}
/// <summary>
/// Render this <see cref="TextObj"/> object to the specified <see cref="Graphics"/> device
/// This method is normally only called by the Draw method
/// of the parent <see cref="GraphObjList"/> collection object.
/// </summary>
/// <param name="g">
/// A graphic device object to be drawn into. This is normally e.Graphics from the
/// PaintEventArgs argument to the Paint() method.
/// </param>
/// <param name="pane">
/// A reference to the <see cref="PaneBase"/> object that is the parent or
/// owner of this object.
/// </param>
/// <param name="scaleFactor">
/// The scaling factor to be used for rendering objects. This is calculated and
/// passed down by the parent <see cref="GraphPane"/> object using the
/// <see cref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
/// font sizes, etc. according to the actual size of the graph.
/// </param>
override public void Draw(Graphics g, PaneBase pane, float scaleFactor)
{
// transform the x,y location from the user-defined
// coordinate frame to the screen pixel location
PointF pix = Location.Transform(pane);
// Draw the text on the screen, including any frame and background
// fill elements
if (pix.X > -100000 && pix.X < 100000 && pix.Y > -100000 && pix.Y < 100000)
{
//if ( this.layoutSize.IsEmpty )
// this.FontSpec.Draw( g, pane.IsPenWidthScaled, this.text, pix.X, pix.Y,
// this.location.AlignH, this.location.AlignV, scaleFactor );
//else
this.FontSpec.Draw(g, pane, _text, pix.X, pix.Y,
Location.AlignH, Location.AlignV, scaleFactor, _layoutArea);
}
}
internal GraphicsPath MakePath(PaneBase pane)
{
GraphicsPath path = new GraphicsPath();
bool first = true;
PointF lastPt = new PointF();
foreach (PointD pt in _points)
{
// Convert the coordinates from the user coordinate system
// to the screen coordinate system
// Offset the points by the location value
PointF pixPt = Location.Transform(pane, pt.X + Location.X, pt.Y + Location.Y,
Location.CoordinateFrame);
if (Math.Abs(pixPt.X) < 100000 &&
Math.Abs(pixPt.Y) < 100000)
{
if (first)
{
first = false;
}
else
{
path.AddLine(lastPt, pixPt);
}
lastPt = pixPt;
}
}
if (_isClosedFigure)
{
path.CloseFigure();
}
return(path);
}