/// <summary>
/// Constructor for deserializing objects
/// </summary>
/// <param name="info">A <see cref="SerializationInfo"/> instance that defines the serialized data
/// </param>
/// <param name="context">A <see cref="StreamingContext"/> instance that contains the serialized data
/// </param>
protected GraphObj( SerializationInfo info, StreamingContext context )
{
// The schema value is just a file version parameter. You can use it to make future versions
// backwards compatible as new member variables are added to classes
int sch = info.GetInt32( "schema" );
_location = (Location) info.GetValue( "location", typeof(Location) );
_isVisible = info.GetBoolean( "isVisible" );
Tag = info.GetValue( "Tag", typeof(object) );
_zOrder = (ZOrder) info.GetValue( "zOrder", typeof(ZOrder) );
_isClippedToChartRect = info.GetBoolean( "isClippedToChartRect" );
_link = (Link) info.GetValue( "link", typeof( Link ) );
}
/// <summary>
/// Search through the <see cref="GraphObjList" /> and <see cref="CurveList" /> for
/// items that contain active <see cref="Link" /> objects.
/// </summary>
/// <param name="mousePt">The mouse location where the click occurred</param>
/// <param name="g">An appropriate <see cref="Graphics" /> instance</param>
/// <param name="scaleFactor">The current scaling factor for drawing operations.</param>
/// <param name="source">The clickable object that was found. Typically a type of
/// <see cref="GraphObj" /> or a type of <see cref="CurveItem" />.</param>
/// <param name="link">The <see cref="Link" /> instance that is contained within
/// the <see paramref="source" /> object.</param>
/// <param name="index">An index value, indicating which point was clicked for
/// <see cref="CurveItem" /> type objects.</param>
/// <returns>returns true if a clickable link was found under the
/// <see paramref="mousePt" />, or false otherwise.
/// </returns>
public bool FindLinkableObject( PointF mousePt, Graphics g, float scaleFactor,
out object source, out Link link, out int index )
{
index = -1;
// First look for graph objects that lie in front of the data points
foreach ( GraphObj graphObj in _graphObjList )
{
link = graphObj._link;
bool inFront = graphObj.IsInFrontOfData;
if ( link.IsActive )
{
if ( graphObj.PointInBox( mousePt, this, g, scaleFactor ) )
{
source = graphObj;
return true;
}
}
}
// Second, look at the curve data points
foreach ( CurveItem curve in _curveList )
{
link = curve._link;
if ( link.IsActive )
{
CurveItem nearestCurve;
if ( FindNearestPoint( mousePt, curve, out nearestCurve, out index ) )
{
source = curve;
return true;
}
}
}
// Third, look for graph objects that lie behind the data points
foreach ( GraphObj graphObj in _graphObjList )
{
link = graphObj._link;
bool inFront = graphObj.IsInFrontOfData;
if ( link.IsActive )
{
if ( graphObj.PointInBox( mousePt, this, g, scaleFactor ) )
{
source = graphObj;
return true;
}
}
}
source = null;
link = null;
index = -1;
return false;
}
/// <summary>
/// Constructor that creates a <see cref="GraphObj"/> with the specified
/// position, <see cref="CoordType"/>, <see cref="AlignH"/>, and <see cref="AlignV"/>.
/// Other properties are set to default values as defined in the <see cref="Default"/> class.
/// </summary>
/// <remarks>
/// The four coordinates define the starting point and ending point for
/// <see cref="ArrowObj"/>'s, or the topleft and bottomright points for
/// <see cref="ImageObj"/>'s. For <see cref="GraphObj"/>'s that only require
/// one point, the <see paramref="x2"/> and <see paramref="y2"/> values
/// will be ignored. The units of the coordinates are specified by the
/// <see cref="ZedGraph.Location.CoordinateFrame"/> property.
/// </remarks>
/// <param name="x">The x position of the item.</param>
/// <param name="y">The y position of the item.</param>
/// <param name="x2">The x2 position of the item.</param>
/// <param name="y2">The x2 position of the item.</param>
/// <param name="coordType">The <see cref="CoordType"/> enum value that
/// indicates what type of coordinate system the x and y parameters are
/// referenced to.</param>
/// <param name="alignH">The <see cref="ZedGraph.AlignH"/> enum that specifies
/// the horizontal alignment of the object with respect to the (x,y) location</param>
/// <param name="alignV">The <see cref="ZedGraph.AlignV"/> enum that specifies
/// the vertical alignment of the object with respect to the (x,y) location</param>
public GraphObj( double x, double y, double x2, double y2, CoordType coordType,
AlignH alignH, AlignV alignV )
{
_isVisible = true;
_isClippedToChartRect = Default.IsClippedToChartRect;
this.Tag = null;
_zOrder = ZOrder.A_InFront;
_location = new Location( x, y, x2, y2, coordType, alignH, alignV );
_link = new Link();
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see cref="GraphObj"/> object from which to copy</param>
public GraphObj( GraphObj rhs )
{
// Copy value types
_isVisible = rhs.IsVisible;
_isClippedToChartRect = rhs._isClippedToChartRect;
_zOrder = rhs.ZOrder;
// copy reference types by cloning
if ( rhs.Tag is ICloneable )
this.Tag = ((ICloneable) rhs.Tag).Clone();
else
this.Tag = rhs.Tag;
_location = rhs.Location.Clone();
_link = rhs._link.Clone();
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see cref="Link"/> object from which to copy</param>
public Link( Link rhs )
{
// Copy value types
_title = rhs._title;
_url = rhs._url;
_target = rhs._target;
_isEnabled = false;
// copy reference types by cloning
if ( rhs.Tag is ICloneable )
this.Tag = ((ICloneable) rhs.Tag).Clone();
else
this.Tag = rhs.Tag;
}
private bool z1_LinkEvent( ZedGraphControl sender, GraphPane pane,
object source, Link link, int index )
{
if ( source is CurveItem )
MessageBox.Show( "You clicked on point #" + index.ToString() + " of curve '" + link.Title + "'" );
else
MessageBox.Show( "You clicked on a non-curve item" );
return false;
}
/// <summary>
/// Constructor for deserializing objects
/// </summary>
/// <param name="info">A <see cref="SerializationInfo"/> instance that defines the serialized data
/// </param>
/// <param name="context">A <see cref="StreamingContext"/> instance that contains the serialized data
/// </param>
protected CurveItem( SerializationInfo info, StreamingContext context )
{
// The schema value is just a file version parameter. You can use it to make future versions
// backwards compatible as new member variables are added to classes
int sch = info.GetInt32( "schema" );
_label = (Label) info.GetValue( "label", typeof(Label) );
_isY2Axis = info.GetBoolean( "isY2Axis" );
if ( sch >= 11 )
_isX2Axis = info.GetBoolean( "isX2Axis" );
else
_isX2Axis = false;
_isVisible = info.GetBoolean( "isVisible" );
_isOverrideOrdinal = info.GetBoolean( "isOverrideOrdinal" );
// Data Points are always stored as a PointPairList, regardless of the
// actual original type (which could be anything that supports IPointList).
_points = (PointPairList) info.GetValue( "points", typeof(PointPairList) );
Tag = info.GetValue( "Tag", typeof(object) );
_yAxisIndex = info.GetInt32( "yAxisIndex" );
_link = (Link) info.GetValue( "link", typeof(Link) );
}
/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The CurveItem object from which to copy</param>
public CurveItem( CurveItem rhs )
{
_label = rhs._label.Clone();
_isY2Axis = rhs.IsY2Axis;
_isX2Axis = rhs.IsX2Axis;
_isVisible = rhs.IsVisible;
_isOverrideOrdinal = rhs._isOverrideOrdinal;
_yAxisIndex = rhs._yAxisIndex;
if ( rhs.Tag is ICloneable )
this.Tag = ((ICloneable) rhs.Tag).Clone();
else
this.Tag = rhs.Tag;
_points = (IPointList) rhs.Points.Clone();
_link = rhs._link.Clone();
}
/// <summary>
/// Internal initialization routine thats sets some initial values to defaults.
/// </summary>
/// <param name="label">A string label (legend entry) for this curve</param>
private void Init( string label )
{
_label = new Label( label, null );
_isY2Axis = false;
_isX2Axis = false;
_isVisible = true;
_isOverrideOrdinal = false;
this.Tag = null;
_yAxisIndex = 0;
_link = new Link();
}