Exemplo n.º 1
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		/// <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
			RectangleF pixRect = _location.TransformRect( pane );

			shape = "rect";
			coords = String.Format( "{0:f0},{1:f0},{2:f0},{3:f0}",
						pixRect.Left, pixRect.Top, pixRect.Right, pixRect.Bottom );
		}
Exemplo n.º 2
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		/// <summary>
		/// Transform the <see c_ref="RectangleF"/> for this object as defined by the
		/// <see c_ref="X"/>, <see c_ref="Y"/>, <see c_ref="Width"/>, and
		/// <see c_ref="Height"/> properties.
		/// </summary>
		/// <remarks>
		/// This method transforms the location to output device pixel units.
		/// The <see c_ref="AlignH"/> and <see c_ref="AlignV"/> properties are honored in 
		/// this transformation.
		/// </remarks>
		/// <value>A <see c_ref="RectangleF"/> in pixel units.</value>
		public RectangleF TransformRect( PaneBase pane )
		{
			PointF pix1 = TransformTopLeft( pane );
			PointF pix2 = TransformBottomRight( pane );
			//PointF pix3 = TransformTopLeft( pane, pix2.X - pix1.X, pix2.Y - pix1.Y );

			return new RectangleF( pix1.X, pix1.Y, Math.Abs(pix2.X - pix1.X), Math.Abs(pix2.Y - pix1.Y) );
		}
Exemplo n.º 3
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		/// <summary>
		/// Render the specified <paramref name="text"/> to the specifed
		/// <see c_ref="Graphics"/> device.  The text, border, and fill options
		/// will be rendered as required.
		/// </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 c_ref="PaneBase"/> object that is the parent or
		/// owner of this object.
		/// </param>
		/// <param name="text">A string value containing the text to be
		/// displayed.  This can be multiple lines, separated by newline ('\n')
		/// characters</param>
		/// <param name="x">The X location to display the text, in screen
		/// coordinates, relative to the horizontal (<see c_ref="AlignH"/>)
		/// alignment parameter <paramref name="alignH"/></param>
		/// <param name="y">The Y location to display the text, in screen
		/// coordinates, relative to the vertical (<see c_ref="AlignV"/>
		/// alignment parameter <paramref name="alignV"/></param>
		/// <param name="alignH">A horizontal alignment parameter specified
		/// using the <see c_ref="AlignH"/> enum type</param>
		/// <param name="alignV">A vertical alignment parameter specified
		/// using the <see c_ref="AlignV"/> enum type</param>
		/// <param name="scaleFactor">
		/// The scaling factor to be used for rendering objects.  This is calculated and
		/// passed down by the parent <see c_ref="GraphPane"/> object using the
		/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
		/// font sizes, etc. according to the actual size of the graph.
		/// </param>
		public void Draw( Graphics g, PaneBase pane, string text, float x,
			float y, AlignH alignH, AlignV alignV,
			float scaleFactor )
		{
			Draw( g, pane, text, x, y, alignH, alignV,
						scaleFactor, new SizeF() );
		}
Exemplo n.º 4
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		/// <summary>
		/// Transform a data point from the specified coordinate type
		/// (<see c_ref="CoordType"/>) to display device coordinates (pixels).
		/// </summary>
		/// <remarks>
		/// If <see paramref="pane"/> is not of type <see c_ref="GraphPane"/>, then
		/// only the <see c_ref="CoordType.PaneFraction"/> transformation is available.
		/// </remarks>
		/// <param name="pane">
		/// A reference to the <see c_ref="PaneBase"/> object that contains
		/// the <see c_ref="Axis"/> classes which will be used for the transform.
		/// </param>
		/// <param name="x">The x coordinate that defines the point in user
		/// space.</param>
		/// <param name="y">The y coordinate that defines the point in user
		/// space.</param>
		/// <param name="coord">A <see c_ref="CoordType"/> type that defines the
		/// coordinate system in which the X,Y pair is defined.</param>
		/// <returns>A point in display device coordinates that corresponds to the
		/// specified user point.</returns>
		public static PointF Transform( PaneBase pane, double x, double y, CoordType coord )
		{
			return pane.TransformCoord( x, y, coord );
		}
Exemplo n.º 5
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		/// <summary>
		/// The <see c_ref="PointF"/> for this object as defined by the
		/// <see c_ref="X"/> and <see c_ref="Y"/>
		/// properties.
		/// </summary>
		/// <remarks>
		/// This method transforms the location to output device pixel units.
		/// The <see c_ref="AlignH"/> and <see c_ref="AlignV"/> properties are ignored for
		/// this transformation (see <see c_ref="TransformTopLeft(PaneBase,float,float)"/>).
		/// </remarks>
		/// <value>A <see c_ref="PointF"/> in pixel units.</value>
		public PointF TransformTopLeft( PaneBase pane )
		{
			return Transform( pane );
		}
Exemplo n.º 6
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		/// <summary>
		/// Determine if the specified screen point lies inside the bounding box of this
		/// <see c_ref="GraphObj"/>.
		/// </summary>
		/// <param name="pt">The screen point, in pixels</param>
		/// <param name="pane">
		/// A reference to the <see c_ref="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 c_ref="PaneBase"/> object using the
		/// <see c_ref="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>
		virtual public bool PointInBox( PointF pt, PaneBase pane, Graphics g, float scaleFactor )
		{
			GraphPane gPane = pane as GraphPane;

			if ( gPane != null && _isClippedToChartRect && !gPane.Chart.Rect.Contains( pt ) )
				return false;

			return true;
		}
Exemplo n.º 7
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		/// <summary>
		/// Render this object to the specified <see c_ref="Graphics"/> device.
		/// </summary>
		/// <remarks>
		/// This method is normally only called by the Draw method
		/// of the parent <see c_ref="GraphObjList"/> collection object.
		/// </remarks>
		/// <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 c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="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 )
		{
			// Convert the arrow coordinates from the user coordinate system
			// to the screen coordinate system
			PointF pix1 = Location.TransformTopLeft( pane );
			PointF pix2 = Location.TransformBottomRight( pane );

			if ( pix1.X > -10000 && pix1.X < 100000 && pix1.Y > -100000 && pix1.Y < 100000 &&
				pix2.X > -10000 && pix2.X < 100000 && pix2.Y > -100000 && pix2.Y < 100000 )
			{
				// get a scaled size for the arrowhead
				float scaledSize = _size * scaleFactor;

				// calculate the length and the angle of the arrow "vector"
				double dy = pix2.Y - pix1.Y;
				double dx = pix2.X - pix1.X;
				float angle = (float)Math.Atan2( dy, dx ) * 180.0F / (float)Math.PI;
				float length = (float)Math.Sqrt( dx * dx + dy * dy );

				// Save the old transform matrix
				Matrix transform = g.Transform;
				// Move the coordinate system so it is located at the starting point
				// of this arrow
				g.TranslateTransform( pix1.X, pix1.Y );
				// Rotate the coordinate system according to the angle of this arrow
				// about the starting point
				g.RotateTransform( angle );

				// get a pen according to this arrow properties
				using ( Pen pen = _line.GetPen( pane, scaleFactor ) )
					//new Pen( _color, pane.ScaledPenWidth( _penWidth, scaleFactor ) ) )
				{
					//pen.DashStyle = _style;

					// Only show the arrowhead if required
					if ( _isArrowHead )
					{
						// Draw the line segment for this arrow
						g.DrawLine( pen, 0, 0, length - scaledSize + 1, 0 );

						// Create a polygon representing the arrowhead based on the scaled
						// size
						PointF[] polyPt = new PointF[4];
						float hsize = scaledSize / 3.0F;
						polyPt[0].X = length;
						polyPt[0].Y = 0;
						polyPt[1].X = length - scaledSize;
						polyPt[1].Y = hsize;
						polyPt[2].X = length - scaledSize;
						polyPt[2].Y = -hsize;
						polyPt[3] = polyPt[0];

						using ( SolidBrush brush = new SolidBrush( _line._color ) )
							// render the arrowhead
							g.FillPolygon( brush, polyPt );
					}
					else
						g.DrawLine( pen, 0, 0, length, 0 );
				}

				// Restore the transform matrix back to its original state
				g.Transform = transform;
			}
		}
Exemplo n.º 8
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		/// <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 );
		}
Exemplo n.º 9
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		/// <summary>
		/// Render this object to the specified <see c_ref="Graphics"/> device.
		/// </summary>
		/// <remarks>
		/// This method is normally only called by the Draw method
		/// of the parent <see c_ref="GraphObjList"/> collection object.
		/// </remarks>
		/// <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 c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="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 )
		{
			// Convert the arrow coordinates from the user coordinate system
			// to the screen coordinate system
			PointF pix1 = Location.TransformTopLeft( pane );
			PointF pix2 = Location.TransformBottomRight( pane );

			if ( pix1.X > -10000 && pix1.X < 100000 && pix1.Y > -100000 && pix1.Y < 100000 &&
				pix2.X > -10000 && pix2.X < 100000 && pix2.Y > -100000 && pix2.Y < 100000 )
			{
				// calculate the length and the angle of the arrow "vector"
				double dy = pix2.Y - pix1.Y;
				double dx = pix2.X - pix1.X;
				float angle = (float)Math.Atan2( dy, dx ) * 180.0F / (float)Math.PI;
				float length = (float)Math.Sqrt( dx * dx + dy * dy );

				// Save the old transform matrix
				Matrix transform = g.Transform;
				// Move the coordinate system so it is located at the starting point
				// of this arrow
				g.TranslateTransform( pix1.X, pix1.Y );
				// Rotate the coordinate system according to the angle of this arrow
				// about the starting point
				g.RotateTransform( angle );

				// get a pen according to this arrow properties
				using ( Pen pen = _line.GetPen( pane, scaleFactor ) )
				//new Pen( _line._color, pane.ScaledPenWidth( _line._width, scaleFactor ) ) )
				{
					//pen.DashStyle = _style;

					g.DrawLine( pen, 0, 0, length, 0 );
				}

				// Restore the transform matrix back to its original state
				g.Transform = transform;
			}
		}
Exemplo n.º 10
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		/// <summary>
		/// Render this <see c_ref="TextObj"/> object to the specified <see c_ref="Graphics"/> device
		/// This method is normally only called by the Draw method
		/// of the parent <see c_ref="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 c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="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
					FontSpec.Draw( g, pane, _text, pix.X, pix.Y,
						_location.AlignH, _location.AlignV, scaleFactor, _layoutArea );

			}
		}
Exemplo n.º 11
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		/// <summary>
		/// Determine if the specified screen point lies inside the bounding box of this
		/// <see c_ref="TextObj"/>.  This method takes into account rotation and alignment
		/// parameters of the text, as specified in the <see c_ref="FontSpec"/>.
		/// </summary>
		/// <param name="pt">The screen point, in pixels</param>
		/// <param name="pane">
		/// A reference to the <see c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="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, LayoutArea );
		}
Exemplo n.º 12
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		/// <summary>
		/// Create a <see c_ref="Pen" /> object based on the properties of this
		/// <see c_ref="LineBase" />.
		/// </summary>
		/// <param name="pane">The owner <see c_ref="GraphPane" /> of this
		/// <see c_ref="LineBase" />.
		/// </param>
		/// <param name="scaleFactor">
		/// The scaling factor to be used for rendering objects.  This is calculated and
		/// passed down by the parent <see c_ref="GraphPane"/> object using the
		/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
		/// font sizes, etc. according to the actual size of the graph.
		/// </param>
		/// <param name="dataValue">The data value to be used for a value-based
		/// color gradient.  This is only applicable if <see c_ref="Fill.Type">GradientFill.Type</see>
		/// is one of <see c_ref="FillType.GradientByX"/>,
		/// <see c_ref="FillType.GradientByY"/>, <see c_ref="FillType.GradientByZ"/>,
		/// or <see c_ref="FillType.GradientByColorValue" />.
		/// </param>
		/// <returns>A <see c_ref="Pen" /> object with the properties of this <see c_ref="LineBase" />
		/// </returns>
		public Pen GetPen( PaneBase pane, float scaleFactor, PointPair dataValue )
		{
			Color color = _color;
			if ( _gradientFill.IsGradientValueType )
				color = _gradientFill.GetGradientColor( dataValue );

			Pen pen = new Pen( color,
						pane.ScaledPenWidth( _width, scaleFactor ) );

			pen.DashStyle = _style;

			if ( _style == DashStyle.Custom )
			{
				if ( _dashOff > 1e-10 && _dashOn > 1e-10 )
				{
					pen.DashStyle = DashStyle.Custom;
					float[] pattern = new float[2];
					pattern[0] = _dashOn;
					pattern[1] = _dashOff;
					pen.DashPattern = pattern;
				}
				else
					pen.DashStyle = DashStyle.Solid;
			}

			return pen;
		}
Exemplo n.º 13
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		/// <summary>
		/// Create a <see c_ref="Pen" /> object based on the properties of this
		/// <see c_ref="LineBase" />.
		/// </summary>
		/// <param name="pane">The owner <see c_ref="GraphPane" /> of this
		/// <see c_ref="LineBase" />.
		/// </param>
		/// <param name="scaleFactor">
		/// The scaling factor to be used for rendering objects.  This is calculated and
		/// passed down by the parent <see c_ref="GraphPane"/> object using the
		/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
		/// font sizes, etc. according to the actual size of the graph.
		/// </param>
		/// <returns>A <see c_ref="Pen" /> object with the properties of this <see c_ref="LineBase" />
		/// </returns>
		public Pen GetPen( PaneBase pane, float scaleFactor )
		{
			return GetPen( pane, scaleFactor, null );
		}
Exemplo n.º 14
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		/*
		/// <summary>
		/// Create a new <see c_ref="Pen"/> object from the properties of this
		/// <see c_ref="Border"/> object.
		/// </summary>
		/// <param name="isPenWidthScaled">
		/// Set to true to have the <see c_ref="Border"/> pen width scaled with the
		/// scaleFactor.
		/// </param>
		/// <param name="scaleFactor">
		/// The scaling factor for the features of the graph based on the <see c_ref="PaneBase.BaseDimension"/>.  This
		/// scaling factor is calculated by the <see c_ref="PaneBase.CalcScaleFactor"/> method.  The scale factor
		/// represents a linear multiple to be applied to font sizes, symbol sizes, etc.
		/// </param>
		/// <returns>A <see c_ref="Pen"/> object with the proper color and pen width.</returns>
		public Pen MakePen( bool isPenWidthScaled, float scaleFactor )
		{
			float scaledPenWidth = _width;
			if ( isPenWidthScaled )
				scaledPenWidth = (float)(_width * scaleFactor);
			
			return new Pen( _color, scaledPenWidth );
		}
		*/
		
		/// <summary>
		/// Draw the specified Border (<see c_ref="RectangleF"/>) using the properties of
		/// this <see c_ref="Border"/> 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 c_ref="PaneBase"/> object that is the parent or
		/// owner of this object.
		/// </param>
		/// <param name="scaleFactor">
		/// The scaling factor for the features of the graph based on the <see c_ref="PaneBase.BaseDimension"/>.  This
		/// scaling factor is calculated by the <see c_ref="PaneBase.CalcScaleFactor"/> method.  The scale factor
		/// represents a linear multiple to be applied to font sizes, symbol sizes, etc.
		/// </param>
		/// <param name="rect">A <see c_ref="RectangleF"/> struct to be drawn.</param>
		public void Draw( Graphics g, PaneBase pane, float scaleFactor, RectangleF rect )
		{
			// Need to use the RectangleF props since rounding it can cause the axisFrame to
			// not line up properly with the last tic mark
			if ( _isVisible )
			{
				RectangleF tRect = rect;

				float		scaledInflate = _inflateFactor * scaleFactor;
				tRect.Inflate( scaledInflate, scaledInflate );

				using ( Pen pen = GetPen( pane, scaleFactor) )
					g.DrawRectangle( pen, tRect.X, tRect.Y, tRect.Width, tRect.Height );
			}
		}
Exemplo n.º 15
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		/// <summary>
		/// Determine if the specified screen point lies inside the bounding box of this
		/// <see c_ref="BoxObj"/>.
		/// </summary>
		/// <param name="pt">The screen point, in pixels</param>
		/// <param name="pane">
		/// A reference to the <see c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="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
			RectangleF pixRect = _location.TransformRect( pane );

			using ( GraphicsPath path = new GraphicsPath() )
			{
				path.AddEllipse( pixRect );
				return path.IsVisible( pt );
			}
		}
Exemplo n.º 16
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		/// <summary>
		/// Determine if the specified screen point lies inside the bounding box of this
		/// <see c_ref="LineObj"/>.
		/// </summary>
		/// <remarks>The bounding box is calculated assuming a distance
		/// of <see c_ref="GraphPane.Default.NearestTol"/> pixels around the arrow segment.
		/// </remarks>
		/// <param name="pt">The screen point, in pixels</param>
		/// <param name="pane">
		/// A reference to the <see c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="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.TransformTopLeft( pane );
			PointF pix2 = _location.TransformBottomRight( pane );

			using ( Pen pen = new Pen( Color.Black, (float)GraphPane.Default.NearestTol * 2.0F ) )
			{
				using ( GraphicsPath path = new GraphicsPath() )
				{
					path.AddLine( pix, pix2 );
					return path.IsOutlineVisible( pt, pen );
				}
			}
		}
Exemplo n.º 17
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		/// <summary>
		/// Render this <see c_ref="GraphObj"/> object to the specified <see c_ref="Graphics"/> device.
		/// </summary>
		/// <remarks>
		/// This method is normally only called by the Draw method
		/// of the parent <see c_ref="GraphObjList"/> collection object.
		/// </remarks>
		/// <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 c_ref="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 c_ref="PaneBase"/> object using the
		/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
		/// font sizes, etc. according to the actual size of the graph.
		/// </param>
		abstract public void Draw( Graphics g, PaneBase pane, float scaleFactor );
Exemplo n.º 18
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		/// <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
			RectangleF pixRect = _location.TransformRect( pane );

			Matrix matrix = new Matrix();
			if ( pixRect.Right == 0 )
				pixRect.Width = 1;
			float angle = (float) Math.Atan( ( pixRect.Top - pixRect.Bottom ) /
					( pixRect.Left - pixRect.Right ) );
			matrix.Rotate( angle, MatrixOrder.Prepend );

			// Move the coordinate system to local coordinates
			// of this text object (that is, at the specified
			// x,y location)
			matrix.Translate( -pixRect.Left, -pixRect.Top, MatrixOrder.Prepend );

			PointF[] pts = new PointF[4];
			pts[0] = new PointF( 0, 3 );
			pts[1] = new PointF( pixRect.Width, 3 );
			pts[2] = new PointF( pixRect.Width, -3 );
			pts[3] = new PointF( 0, -3 );
			matrix.TransformPoints( pts );

			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 );
		}
Exemplo n.º 19
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		/// <summary>
		/// Determines the shape type and Coords values for this GraphObj
		/// </summary>
		abstract public void GetCoords( PaneBase pane, Graphics g, float scaleFactor,
				out string shape, out string coords );
Exemplo n.º 20
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		/// <summary>
		/// Render the <see c_ref="Legend"/> to the specified <see c_ref="Graphics"/> device.
		/// </summary>
		/// <remarks>
		/// This method is normally only called by the Draw method
		/// of the parent <see c_ref="GraphPane"/> object.
		/// </remarks>
		/// <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 c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
		/// font sizes, etc. according to the actual size of the graph.
		/// </param>
		public void Draw( Graphics g, PaneBase pane, float scaleFactor )
		{
			// if the legend is not visible, do nothing
			if ( !_isVisible )
				return;

			// Fill the background with the specified color if required
			_fill.Draw( g, _rect );

			PaneList paneList = GetPaneList( pane );

			float halfGap = _tmpSize / 2.0F;

			// Check for bad data values
			if ( _hStack <= 0 )
				_hStack = 1;
			if ( _legendItemWidth <= 0 )
				_legendItemWidth = 100;
			if ( _legendItemHeight <= 0 )
				_legendItemHeight = _tmpSize;

			//float gap = pane.ScaledGap( scaleFactor );

			int iEntry = 0;
			float x, y;

			// Get a brush for the legend label text
			using ( SolidBrush brushB = new SolidBrush( Color.Black ) )
			{
				foreach ( GraphPane tmpPane in paneList )
				{
					// Loop for each curve in the CurveList collection
					//foreach ( CurveItem curve in tmpPane.CurveList )
					int count = tmpPane.CurveList.Count;
					for ( int i = 0; i < count; i++ )
					{
						CurveItem curve = tmpPane.CurveList[_isReverse ? count - i - 1 : i];

						if ( curve._label._text != "" && curve._label._isVisible )
						{
							// Calculate the x,y (TopLeft) location of the current
							// curve legend label
							// assuming:
							//  charHeight/2 for the left margin, plus legendWidth for each
							//    horizontal column
							//  legendHeight is the line spacing, with no extra margin above

							x = _rect.Left + halfGap / 2.0F +
								( iEntry % _hStack ) * _legendItemWidth;
							y = _rect.Top + iEntry / _hStack * _legendItemHeight;

							// Draw the legend label for the current curve
							FontSpec tmpFont = ( curve._label._fontSpec != null ) ?
										curve._label._fontSpec : FontSpec;

							// This is required because, for long labels, the centering can affect the
							// position in GDI+.
							tmpFont.StringAlignment = StringAlignment.Near;

							if ( _isShowLegendSymbols )
							{
								tmpFont.Draw( g, pane, curve._label._text,
										x + 2.5F * _tmpSize, y + _legendItemHeight / 2.0F+1,
										AlignH.Left, AlignV.Center, scaleFactor );

								RectangleF rect = new RectangleF( x, y + _legendItemHeight / 4.0F,
									2 * _tmpSize, _legendItemHeight / 2.0F );
								curve.DrawLegendKey( g, tmpPane, rect, scaleFactor );
							}
							else
							{
								if ( curve._label._fontSpec == null )
									tmpFont.FontColor = curve.Color;

								tmpFont.Draw(g, pane, curve._label._text,
									x + 0.0F * _tmpSize, y + _legendItemHeight / 2.0F,
									AlignH.Left, AlignV.Center, scaleFactor);
							}

							// maintain a curve count for positioning
							iEntry++;
						}
					}
					if ( pane is MasterPane && ( (MasterPane)pane ).IsUniformLegendEntries )
						break;
				}

				// Draw a border around the legend if required
				if ( iEntry > 0 )
					Border.Draw( g, pane, scaleFactor, _rect );
			}
		}
Exemplo n.º 21
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		/// <summary>
		/// Transform this <see c_ref="Location"/> object to display device
		/// coordinates using the properties of the specified <see c_ref="GraphPane"/>.
		/// </summary>
		/// <param name="pane">
		/// A reference to the <see c_ref="PaneBase"/> object that contains
		/// the <see c_ref="Axis"/> classes which will be used for the transform.
		/// </param>
		/// <returns>A point in display device coordinates that corresponds to the
		/// specified user point.</returns>
		public PointF Transform( PaneBase pane )
		{
			return Transform( pane, _x, _y,
						_coordinateFrame );
		}
Exemplo n.º 22
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		/// <summary>
		/// Determine if a mouse point is within the legend, and if so, which legend
		/// entry (<see c_ref="CurveItem"/>) is nearest.
		/// </summary>
		/// <param name="mousePt">The screen point, in pixel coordinates.</param>
		/// <param name="pane">
		/// A reference to the <see c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
		/// font sizes, etc. according to the actual size of the graph.
		/// </param>
		/// <param name="index">The index number of the <see c_ref="CurveItem"/> legend
		/// entry that is under the mouse point.  The <see c_ref="CurveItem"/> object is
		/// accessible via <see c_ref="GraphPane.CurveList">CurveList[index]</see>.
		/// </param>
		/// <returns>true if the mouse point is within the <see c_ref="Legend"/> bounding
		/// box, false otherwise.</returns>
		/// <seealso c_ref="GraphPane.FindNearestObject"/>
		public bool FindPoint( PointF mousePt, PaneBase pane, float scaleFactor, out int index )
		{
			index = -1;

			if ( _rect.Contains( mousePt ) )
			{
				int j = (int)( ( mousePt.Y - _rect.Top ) / _legendItemHeight );
				int i = (int)( ( mousePt.X - _rect.Left - _tmpSize / 2.0f ) / _legendItemWidth );
				if ( i < 0 )
					i = 0;
				if ( i >= _hStack )
					i = _hStack - 1;

				int pos = i + j * _hStack;
				index = 0;

				PaneList paneList = GetPaneList( pane );

				foreach ( GraphPane tmpPane in paneList )
				{
					foreach ( CurveItem curve in tmpPane.CurveList )
					{
						if ( curve._label._isVisible && curve._label._text != string.Empty )
						{
							if ( pos == 0 )
								return true;
							pos--;
						}
						index++;
					}
				}

				return true;
			}
		    return false;
		}
Exemplo n.º 23
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		/// <summary>
		/// Transform this <see c_ref="Location"/> from the coordinate system
		/// as specified by <see c_ref="CoordinateFrame"/> to the device coordinates
		/// of the specified <see c_ref="PaneBase"/> object.
		/// </summary>
		/// <remarks>
		/// The returned
		/// <see c_ref="PointF"/> struct represents the top-left corner of the
		/// object that honors the <see c_ref="Location"/> properties.
		/// The <see c_ref="AlignH"/> and <see c_ref="AlignV"/> properties are honored in 
		/// this transformation.
		/// </remarks>
		/// <param name="pane">
		/// A reference to the <see c_ref="PaneBase"/> object that contains
		/// the <see c_ref="Axis"/> classes which will be used for the transform.
		/// </param>
		/// <param name="width">The width of the object in device pixels</param>
		/// <param name="height">The height of the object in device pixels</param>
		/// <returns>The top-left corner of the object</returns>
		public PointF TransformTopLeft( PaneBase pane, float width, float height )
		{
			PointF pt = Transform( pane );
			
			if ( _alignH == AlignH.Right )
				pt.X -= width;
			else if ( _alignH == AlignH.Center )
				pt.X -= width / 2.0F;
				
			if ( _alignV == AlignV.Bottom )
				pt.Y -= height;
			else if ( _alignV == AlignV.Center )
				pt.Y -= height / 2.0F;
			
			return pt;
		}
Exemplo n.º 24
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		private PaneList GetPaneList( PaneBase pane )
		{
			// For a single GraphPane, create a PaneList to contain it
			// Otherwise, just use the paneList from the MasterPane
			PaneList paneList;

			if ( pane is GraphPane )
			{
				paneList = new PaneList();
				paneList.Add( (GraphPane)pane );
			}
			else
				paneList = ( (MasterPane)pane ).PaneList;

			return paneList;
		}
Exemplo n.º 25
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		/// <summary>
		/// The <see c_ref="PointF"/> for this object as defined by the
		/// <see c_ref="X2"/> and <see c_ref="Y2"/> properties.
		/// </summary>
		/// <remarks>
		/// This method transforms the location to output device pixel units.
		/// The <see c_ref="AlignH"/> and <see c_ref="AlignV"/> properties are ignored for
		/// this transformation (see <see c_ref="TransformTopLeft(PaneBase,float,float)"/>).
		/// </remarks>
		/// <value>A <see c_ref="PointF"/> in pixel units.</value>
		public PointF TransformBottomRight( PaneBase pane )
		{
			return Transform( pane, X2, Y2, _coordinateFrame );
		}
Exemplo n.º 26
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		/// <summary>
		/// Calculate the <see c_ref="Legend"/> rectangle (<see c_ref="Rect"/>),
		/// taking into account the number of required legend
		/// entries, and the legend drawing preferences.
		/// </summary>
		/// <remarks>Adjust the size of the
		/// <see c_ref="Chart.Rect"/> for the parent <see c_ref="GraphPane"/> to accomodate the
		/// space required by the legend.
		/// </remarks>
		/// <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 c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
		/// font sizes, etc. according to the actual size of the graph.
		/// </param>
		/// <param name="tChartRect">
		/// The rectangle that contains the area bounded by the axes, in pixel units.
		/// <seealso c_ref="Chart.Rect" />
		/// </param>
		public void CalcRect( Graphics g, PaneBase pane, float scaleFactor,
			ref RectangleF tChartRect )
		{
			// Start with an empty rectangle
			_rect = Rectangle.Empty;
			_hStack = 1;
			_legendItemWidth = 1;
			_legendItemHeight = 0;

			RectangleF clientRect = pane.CalcClientRect( g, scaleFactor );

			// If the legend is invisible, don't do anything
			if ( !_isVisible )
				return;

			int nCurve = 0;

			PaneList paneList = GetPaneList( pane );
			_tmpSize = GetMaxHeight( paneList, g, scaleFactor );

			float halfGap = _tmpSize / 2.0F,
					maxWidth = 0,
					tmpWidth,
					gapPix = _gap * _tmpSize;

			foreach ( GraphPane tmpPane in paneList )
			{
				// Loop through each curve in the curve list
				// Find the maximum width of the legend labels
				//foreach ( CurveItem curve in tmpPane.CurveList )
				//foreach ( CurveItem curve in GetIterator( tmpPane.CurveList, _isReverse ) )
				int count = tmpPane.CurveList.Count;
				for ( int i = 0; i < count; i++ )
				{
					CurveItem curve = tmpPane.CurveList[_isReverse ? count - i - 1 : i];
					if ( curve._label._text != string.Empty && curve._label._isVisible )
					{
						// Calculate the width of the label save the max width
						FontSpec tmpFont = ( curve._label._fontSpec != null ) ?
										curve._label._fontSpec : FontSpec;

						tmpWidth = tmpFont.GetWidth( g, curve._label._text, scaleFactor );

						if ( tmpWidth > maxWidth )
							maxWidth = tmpWidth;

						// Save the maximum symbol height for line-type curves
						if ( curve is LineItem && ( (LineItem)curve ).Symbol.Size > _legendItemHeight )
							_legendItemHeight = ( (LineItem)curve ).Symbol.Size;

						nCurve++;
					}
				}

				if ( pane is MasterPane && ( (MasterPane)pane ).IsUniformLegendEntries )
					break;
			}

			float widthAvail;

			// Is this legend horizontally stacked?

			if ( _isHStack )
			{
				// Determine the available space for horizontal stacking
				switch ( _position )
				{
					// Never stack if the legend is to the right or left
					case LegendPos.Right:
					case LegendPos.Left:
						widthAvail = 0;
						break;

					// for the top & bottom, the axis border width is available
					case LegendPos.Top:
					case LegendPos.TopCenter:
					case LegendPos.Bottom:
					case LegendPos.BottomCenter:
						widthAvail = tChartRect.Width;
						break;

					// for the top & bottom flush left, the panerect less margins is available
					case LegendPos.TopFlushLeft:
					case LegendPos.BottomFlushLeft:
						widthAvail = clientRect.Width;
						break;

					// for inside the axis area or Float, use 1/2 of the axis border width
					case LegendPos.InsideTopRight:
					case LegendPos.InsideTopLeft:
					case LegendPos.InsideBotRight:
					case LegendPos.InsideBotLeft:
					case LegendPos.Float:
						widthAvail = tChartRect.Width / 2;
						break;

					// shouldn't ever happen
					default:
						widthAvail = 0;
						break;
				}

				// width of one legend entry
				if ( _isShowLegendSymbols )
					_legendItemWidth = 3.0f * _tmpSize + maxWidth;
				else
					_legendItemWidth = 0.5f * _tmpSize + maxWidth;

				// Calculate the number of columns in the legend
				// Normally, the legend is:
				//     available width / ( max width of any entry + space for line&symbol )
				if ( maxWidth > 0 )
					_hStack = (int)( ( widthAvail - halfGap ) / _legendItemWidth );

				// You can never have more columns than legend entries
				if ( _hStack > nCurve )
					_hStack = nCurve;

				// a saftey check
				if ( _hStack == 0 )
					_hStack = 1;
			}
			else
			{
				if ( _isShowLegendSymbols )
					_legendItemWidth = 3.0F * _tmpSize + maxWidth;
				else
					_legendItemWidth = 0.5F * _tmpSize + maxWidth;
			}

			// legend is:
			//   item:     space  line  space  text   space
			//   width:     wid  4*wid   wid  maxWid   wid 
			// The symbol is centered on the line
			//
			// legend begins 3 * wid to the right of the plot rect
			//
			// The height of the legend is the actual height of the lines of text
			//   (nCurve * hite) plus wid on top and wid on the bottom

			// total legend width
			float totLegWidth = _hStack * _legendItemWidth;

			// The total legend height
			_legendItemHeight = _legendItemHeight * scaleFactor + halfGap;
			if ( _tmpSize > _legendItemHeight )
				_legendItemHeight = _tmpSize;
			float totLegHeight = (float)Math.Ceiling( nCurve / (double)_hStack )
				* _legendItemHeight;

			RectangleF newRect = new RectangleF();

			// Now calculate the legend rect based on the above determined parameters
			// Also, adjust the ChartRect to reflect the space for the legend
			if ( nCurve > 0 )
			{
				newRect = new RectangleF( 0, 0, totLegWidth, totLegHeight );

				// The switch statement assigns the left and top edges, and adjusts the ChartRect
				// as required.  The right and bottom edges are calculated at the bottom of the switch.
				switch ( _position )
				{
					case LegendPos.Right:
						newRect.X = clientRect.Right - totLegWidth;
						newRect.Y = tChartRect.Top;

						tChartRect.Width -= totLegWidth + gapPix;
						break;
					case LegendPos.Top:
						newRect.X = tChartRect.Left;
						newRect.Y = clientRect.Top;

						tChartRect.Y += totLegHeight + gapPix;
						tChartRect.Height -= totLegHeight + gapPix;
						break;
					case LegendPos.TopFlushLeft:
						newRect.X = clientRect.Left;
						newRect.Y = clientRect.Top;

						tChartRect.Y += totLegHeight + gapPix * 1.5f;
						tChartRect.Height -= totLegHeight + gapPix * 1.5f;
						break;
					case LegendPos.TopCenter:
						newRect.X = tChartRect.Left + ( tChartRect.Width - totLegWidth ) / 2;
						newRect.Y = tChartRect.Top;

						tChartRect.Y += totLegHeight + gapPix;
						tChartRect.Height -= totLegHeight + gapPix;
						break;
					case LegendPos.Bottom:
						newRect.X = tChartRect.Left;
						newRect.Y = clientRect.Bottom - totLegHeight;

						tChartRect.Height -= totLegHeight + gapPix;
						break;
					case LegendPos.BottomFlushLeft:
						newRect.X = clientRect.Left;
						newRect.Y = clientRect.Bottom - totLegHeight;

						tChartRect.Height -= totLegHeight + gapPix;
						break;
					case LegendPos.BottomCenter:
						newRect.X = tChartRect.Left + ( tChartRect.Width - totLegWidth ) / 2;
						newRect.Y = clientRect.Bottom - totLegHeight;

						tChartRect.Height -= totLegHeight + gapPix;
						break;
					case LegendPos.Left:
						newRect.X = clientRect.Left;
						newRect.Y = tChartRect.Top;

						tChartRect.X += totLegWidth + halfGap;
						tChartRect.Width -= totLegWidth + gapPix;
						break;
					case LegendPos.InsideTopRight:
						newRect.X = tChartRect.Right - totLegWidth;
						newRect.Y = tChartRect.Top;
						break;
					case LegendPos.InsideTopLeft:
						newRect.X = tChartRect.Left;
						newRect.Y = tChartRect.Top;
						break;
					case LegendPos.InsideBotRight:
						newRect.X = tChartRect.Right - totLegWidth;
						newRect.Y = tChartRect.Bottom - totLegHeight;
						break;
					case LegendPos.InsideBotLeft:
						newRect.X = tChartRect.Left;
						newRect.Y = tChartRect.Bottom - totLegHeight;
						break;
					case LegendPos.Float:
						newRect.Location = Location.TransformTopLeft( pane, totLegWidth, totLegHeight );
						break;
				}
			}

			_rect = newRect;
		}
Exemplo n.º 27
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		/// <summary>
		/// The Copy Constructor
		/// </summary>
		/// <param name="rhs">The <see c_ref="PaneBase"/> object from which to copy</param>
		public PaneBase( PaneBase rhs )
		{
			// copy over all the value types
			_isFontsScaled = rhs._isFontsScaled;
			_isPenWidthScaled = rhs._isPenWidthScaled;

			_titleGap = rhs._titleGap;
			_baseDimension = rhs._baseDimension;
			_margin = rhs._margin.Clone();
			_rect = rhs._rect;

			// Copy the reference types by cloning
			_fill = rhs._fill.Clone();
			_border = rhs._border.Clone();
			_title = rhs._title.Clone();

			_legend = rhs.Legend.Clone();
			_title = rhs._title.Clone();
			_graphObjList = rhs._graphObjList.Clone();
			
			if ( rhs._tag is ICloneable )
				_tag = ((ICloneable) rhs._tag).Clone();
			else
				_tag = rhs._tag;
		}
Exemplo n.º 28
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		/// <summary>
		/// Render this object to the specified <see c_ref="Graphics"/> device.
		/// </summary>
		/// <remarks>
		/// This method is normally only called by the Draw method
		/// of the parent <see c_ref="GraphObjList"/> collection object.
		/// </remarks>
		/// <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 c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="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 )
		{
			// Convert the arrow coordinates from the user coordinate system
			// to the screen coordinate system
			RectangleF pixRect = Location.TransformRect( pane );

			if (	Math.Abs( pixRect.Left ) < 100000 &&
					Math.Abs( pixRect.Top ) < 100000 &&
					Math.Abs( pixRect.Right ) < 100000 &&
					Math.Abs( pixRect.Bottom ) < 100000 )
			{
				if ( _fill.IsVisible )
					using ( Brush brush = _fill.MakeBrush( pixRect ) )
						g.FillEllipse( brush, pixRect );

				if ( _border.IsVisible )
					using ( Pen pen = _border.GetPen( pane, scaleFactor ) )
						g.DrawEllipse( pen, pixRect );
			}
		}
Exemplo n.º 29
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		/// <summary>
		/// Render the specified <paramref name="text"/> to the specifed
		/// <see c_ref="Graphics"/> device.  The text, border, and fill options
		/// will be rendered as required.
		/// </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 c_ref="PaneBase"/> object that is the parent or
		/// owner of this object.
		/// </param>
		/// <param name="text">A string value containing the text to be
		/// displayed.  This can be multiple lines, separated by newline ('\n')
		/// characters</param>
		/// <param name="x">The X location to display the text, in screen
		/// coordinates, relative to the horizontal (<see c_ref="AlignH"/>)
		/// alignment parameter <paramref name="alignH"/></param>
		/// <param name="y">The Y location to display the text, in screen
		/// coordinates, relative to the vertical (<see c_ref="AlignV"/>
		/// alignment parameter <paramref name="alignV"/></param>
		/// <param name="alignH">A horizontal alignment parameter specified
		/// using the <see c_ref="AlignH"/> enum type</param>
		/// <param name="alignV">A vertical alignment parameter specified
		/// using the <see c_ref="AlignV"/> enum type</param>
		/// <param name="scaleFactor">
		/// The scaling factor to be used for rendering objects.  This is calculated and
		/// passed down by the parent <see c_ref="GraphPane"/> object using the
		/// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust
		/// font sizes, etc. according to the actual size of the graph.
		/// </param>
		/// <param name="layoutArea">The limiting area (<see c_ref="SizeF"/>) into which the text
		/// must fit.  The actual rectangle may be smaller than this, but the text will be wrapped
		/// to accomodate the area.</param>
		public void Draw( Graphics g, PaneBase pane, string text, float x,
			float y, AlignH alignH, AlignV alignV,
			float scaleFactor, SizeF layoutArea )
		{
			// make sure the font size is properly scaled
			//Remake( scaleFactor, this.Size, ref this.scaledSize, ref this.font );

			SmoothingMode sModeSave = g.SmoothingMode;
			TextRenderingHint sHintSave = g.TextRenderingHint;
			if ( _isAntiAlias )
			{
				g.SmoothingMode = SmoothingMode.HighQuality;
				g.TextRenderingHint = TextRenderingHint.AntiAlias;
			}

			SizeF sizeF;
			if ( layoutArea.IsEmpty )
				sizeF = MeasureString( g, text, scaleFactor );
			else
				sizeF = MeasureString( g, text, scaleFactor, layoutArea );

			// Save the old transform matrix for later restoration
			Matrix saveMatrix = g.Transform;
			g.Transform = SetupMatrix( g.Transform, x, y, sizeF, alignH, alignV, _angle );

			// Create a rectangle representing the border around the
			// text.  Note that, while the text is drawn based on the
			// TopCenter position, the rectangle is drawn based on
			// the TopLeft position.  Therefore, move the rectangle
			// width/2 to the left to align it properly
			RectangleF rectF = new RectangleF( -sizeF.Width / 2.0F, 0.0F,
								sizeF.Width, sizeF.Height );

			// If the background is to be filled, fill it
			_fill.Draw( g, rectF );

			// Draw the border around the text if required
			_border.Draw( g, pane, scaleFactor, rectF );

			// make a center justified StringFormat alignment
			// for drawing the text
			StringFormat strFormat = new StringFormat();
			strFormat.Alignment = _stringAlignment;
			//			if ( this.stringAlignment == StringAlignment.Far )
			//				g.TranslateTransform( sizeF.Width / 2.0F, 0F, MatrixOrder.Prepend );
			//			else if ( this.stringAlignment == StringAlignment.Near )
			//				g.TranslateTransform( -sizeF.Width / 2.0F, 0F, MatrixOrder.Prepend );


			// Draw the drop shadow text.  Note that the coordinate system
			// is set up such that 0,0 is at the location where the
			// CenterTop of the text needs to be.
			if ( _isDropShadow )
			{
				float xShift = (float)( Math.Cos( _dropShadowAngle ) *
							_dropShadowOffset * _font.Height );
				float yShift = (float)( Math.Sin( _dropShadowAngle ) *
							_dropShadowOffset * _font.Height );
				RectangleF rectD = rectF;
				rectD.Offset( xShift, yShift );
				// make a solid brush for rendering the font itself
				using ( SolidBrush brushD = new SolidBrush( _dropShadowColor ) )
					g.DrawString( text, _font, brushD, rectD, strFormat );
			}

			// make a solid brush for rendering the font itself
			using ( SolidBrush brush = new SolidBrush( _fontColor ) )
			{
				// Draw the actual text.  Note that the coordinate system
				// is set up such that 0,0 is at the location where the
				// CenterTop of the text needs to be.
				//RectangleF layoutArea = new RectangleF( 0.0F, 0.0F, sizeF.Width, sizeF.Height );
				g.DrawString( text, _font, brush, rectF, strFormat );
			}

			// Restore the transform matrix back to original
			g.Transform = saveMatrix;

			g.SmoothingMode = sModeSave;
			g.TextRenderingHint = sHintSave;
		}
Exemplo n.º 30
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		/// <summary>
		/// Determine if the specified screen point lies inside the bounding box of this
		/// <see c_ref="BoxObj"/>.
		/// </summary>
		/// <param name="pt">The screen point, in pixels</param>
		/// <param name="pane">
		/// A reference to the <see c_ref="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 c_ref="GraphPane"/> object using the
		/// <see c_ref="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
			RectangleF pixRect = _location.TransformRect( pane );

			return pixRect.Contains( pt );
		}