public void Render( IGraphCanvas graphics, GraphTransform transform, IGraph2dSource data, PointF cursorDataPt, bool enabled )
{
foreach ( IGraph2dRenderer renderer in m_Renderers )
{
renderer.Render( graphics, transform, data, cursorDataPt, enabled );
}
}
/// <summary>
/// Renders graph data
/// </summary>
/// <param name="graphics">Graphics object to render into</param>
/// <param name="transform">Graph transform</param>
/// <param name="data">Data to render</param>
/// <param name="cursorDataPt">Position of the mouse cursor in data space</param>
/// <param name="enabled">The enabled state of the graph control</param>
public void Render( IGraphCanvas graphics, GraphTransform transform, IGraph2dSource data, PointF cursorDataPt, bool enabled )
{
IGraphX2dSampleSource sampleSource = ( IGraphX2dSampleSource )data;
int sample = ( int )( transform.DataBounds.Left / sampleSource.XStepPerSample );
Color darkColour = GraphUtils.ScaleColour( m_Colour, 0.2f );
float hStep = sampleSource.XStepPerSample / 2;
float dataX = ( sample * sampleSource.XStepPerSample ) + hStep;
while ( dataX < transform.DataBounds.Right )
{
float value = sampleSource.Evaluate( dataX );
dataX += sampleSource.XStepPerSample;
Point tl = transform.DataToScreen( new PointF( dataX - hStep, value ) );
Point br = transform.DataToScreen( new PointF( dataX + hStep, 0 ) );
if ( ( br.Y - tl.Y ) == 0 )
{
continue;
}
Rectangle barArea = new Rectangle( tl.X - 1, tl.Y, ( br.X - tl.X ) + 1, br.Y - tl.Y );
using ( LinearGradientBrush brush = new LinearGradientBrush( barArea, m_Colour, darkColour, 90.0f ) )
{
brush.InterpolationColors = m_Blends;
graphics.FillRectangle( brush, barArea );
}
}
}
/// <summary>
/// Renders a graph using this renderer
/// </summary>
public void Render( IGraphCanvas graphics, GraphTransform transform, IGraph2dSource data, PointF cursorDataPt, bool enabled )
{
Graph2dSourceUniformValue uniformData = ( Graph2dSourceUniformValue )data;
if ( uniformData.FixedAxis == Graph2dSourceUniformValue.Axis.X )
{
float dataX = transform.DataToScreen( new PointF( uniformData.Value, 0 ) ).X;
// TODO: Need to
if ( Math.Abs( cursorDataPt.X - uniformData.Value ) < transform.ScreenToDataXScale * Graph2dUniformValueController.ScreenSelectionTolerance )
{
graphics.DrawLine( s_HighlightPen, dataX, transform.DrawBounds.Top, dataX, transform.DrawBounds.Bottom );
}
graphics.DrawLine( m_Pen, dataX, transform.DrawBounds.Top, dataX, transform.DrawBounds.Bottom );
}
else
{
float dataY = transform.DataToScreen( new PointF( 0, uniformData.Value ) ).Y;
if ( Math.Abs( cursorDataPt.Y - uniformData.Value ) < transform.ScreenToDataYScale * Graph2dUniformValueController.ScreenSelectionTolerance )
{
graphics.DrawLine( s_HighlightPen, transform.DrawBounds.Left, dataY, transform.DrawBounds.Right, dataY );
}
graphics.DrawLine( m_Pen, transform.DrawBounds.Left, dataY, transform.DrawBounds.Right, dataY );
}
}
/// <summary>
/// Called by the control owner when the left mouse button is pressed
/// </summary>
/// <param name="data">Graph data</param>
/// <param name="transform">Graph view transform</param>
/// <param name="dataX">Mouse X position in data space</param>
/// <param name="dataY">Mouse Y position in data space</param>
/// <param name="down">True if the button was pressed, false if the button was released</param>
/// <returns>Returns true if the event was handled, and the control owner should perform no further processing</returns>
public override bool OnMouseLeftButton( IGraph2dSource data, GraphTransform transform, float dataX, float dataY, bool down )
{
if ( !down || data.Disabled )
{
m_MovingIndices = null;
return false;
}
GraphX2dSourceFunction1dAdapter pwlData = ( GraphX2dSourceFunction1dAdapter )data;
PiecewiseLinearFunction1d pwlFunc = ( PiecewiseLinearFunction1d )pwlData.Function;
float selectionDistance = transform.ScreenToDataYScale * ScreenSelectionTolerance;
int closestCpIndex = pwlFunc.FindControlPoint( new Point2( dataX, dataY ), selectionDistance );
if ( closestCpIndex != -1 )
{
m_MovingIndices = new int[] { closestCpIndex };
return true;
}
int closestCp0;
int closestCp1;
if ( GetLineNear( pwlFunc, new Point2( dataX, dataY ), out closestCp0, out closestCp1, selectionDistance ) )
{
m_MovingIndices = new int[] { closestCp0, closestCp1 };
return true;
}
return false;
}
/// <summary>
/// Called by the control owner when the left mouse button is pressed
/// </summary>
/// <param name="data">Graph data</param>
/// <param name="transform">Graph view transform</param>
/// <param name="dataX">Mouse X position in data space</param>
/// <param name="dataY">Mouse Y position in data space</param>
/// <param name="down">True if the button was pressed, false if the button was released</param>
/// <returns>Returns true if the event was handled, and the control owner should perform no further processing</returns>
public override bool OnMouseLeftButton( IGraph2dSource data, GraphTransform transform, float dataX, float dataY, bool down )
{
if ( !down || data.Disabled )
{
m_Moving = false;
return false;
}
float selectionDistance = transform.ScreenToDataYScale * ScreenSelectionTolerance;
Graph2dSourceUniformValue uniformData = (Graph2dSourceUniformValue)data;
float value = uniformData.FixedAxis == Graph2dSourceUniformValue.Axis.X ? dataX : dataY;
m_Moving = Math.Abs( value - uniformData.Value ) < selectionDistance;
return false;
}
/// <summary>
/// Called by the control owner when the mouse is moved
/// </summary>
/// <param name="data">Graph data</param>
/// <param name="transform">Graph view transform</param>
/// <param name="lastDataX">Previous mouse X position in data space</param>
/// <param name="lastDataY">Previous mouse Y position in data space</param>
/// <param name="dataX">Mouse X position in data space</param>
/// <param name="dataY">Mouse Y position in data space</param>
/// <returns>Returns true if the event was handled, and the control owner should perform no further processing</returns>
public override bool OnMouseMove( IGraph2dSource data, GraphTransform transform, float lastDataX, float lastDataY, float dataX, float dataY )
{
if ( data.Disabled || !m_Moving )
{
return false;
}
Graph2dSourceUniformValue uniformData = ( Graph2dSourceUniformValue )data;
if ( uniformData.FixedAxis == Graph2dSourceUniformValue.Axis.X )
{
uniformData.Value += dataX - lastDataX;
}
else
{
uniformData.Value += dataY - lastDataY;
}
return false;
}
/// <summary>
/// Renders the graph
/// </summary>
public void Render( IGraphCanvas graphics, GraphTransform transform, IGraph2dSource data, PointF cursorDataPt, bool enabled )
{
Pen pen = ( enabled && !data.Disabled ) ? m_Pen : s_DisabledPen;
Pen shadowPen = GetShadowPen( data );
GraphX2dSourceFunction1dAdapter cpData = ( GraphX2dSourceFunction1dAdapter )data;
PiecewiseLinearFunction1d pwl = ( PiecewiseLinearFunction1d )cpData.Function;
float tolerance = transform.ScreenToDataYScale * GraphX2dControlPointController.ScreenSelectionTolerance;
int highlightCpIndex = IndexOfControlPointNearPoint( pwl.ControlPoints, new Point2( cursorDataPt.X, cursorDataPt.Y ), tolerance );
Point2 cp = pwl[ 0 ];
Point lastPt = transform.DataToScreen( new PointF( cp.X, cp.Y ) );
if ( NoEndPoints )
{
Point edgePt = transform.DataToScreen( new PointF( transform.DataBounds.Left, cp.Y ) );
DrawGraphLine( graphics, pen, shadowPen, enabled, lastPt, edgePt );
}
for ( int cpIndex = 1; cpIndex < pwl.NumControlPoints; ++cpIndex )
{
cp = pwl[ cpIndex ];
Point pt = transform.DataToScreen( new PointF( cp.X, cp.Y ) );
DrawGraphLine( graphics, pen, shadowPen, enabled, lastPt, pt );
DrawControlPoint( graphics, lastPt, enabled ? m_Brush : s_DisabledBrush, highlightCpIndex == ( cpIndex - 1 ) );
lastPt = pt;
}
if ( NoEndPoints )
{
Point edgePt = transform.DataToScreen( new PointF( transform.DataBounds.Right, cp.Y ) );
DrawGraphLine( graphics, pen, shadowPen, enabled, lastPt, edgePt );
}
DrawControlPoint( graphics, lastPt, Brushes.Blue, highlightCpIndex == ( pwl.NumControlPoints - 1 ) );
}
/// <summary>
/// Renders control points in a graph that derives from Graph2dPiecewiseLinear
/// </summary>
public void Render( IGraphCanvas graphics, GraphTransform transform, IGraph2dSource data, PointF cursorDataPt, bool enabled )
{
if ( data.Disabled )
{
return;
}
GraphX2dSourceFunction1dAdapter pwlGraph = ( GraphX2dSourceFunction1dAdapter )data;
PiecewiseLinearFunction1d pwlFunc = ( PiecewiseLinearFunction1d )pwlGraph.Function;
float tolerance = transform.ScreenToDataYScale * GraphX2dControlPointController.ScreenSelectionTolerance;
int highlightCpIndex = pwlFunc.FindControlPoint( new Point2( cursorDataPt.X, cursorDataPt.Y ), tolerance );
for ( int cpIndex = 0; cpIndex < pwlFunc.NumControlPoints; ++cpIndex )
{
Point2 cp = pwlFunc[ cpIndex ];
PointF screenPt = transform.DataToScreen( new PointF( cp.X, cp.Y ) );
graphics.FillCircle( m_CpBrush, screenPt.X, screenPt.Y, 2 );
if ( cpIndex == highlightCpIndex )
{
graphics.DrawCircle( s_HighlightPen, screenPt.X, screenPt.Y, 4 );
}
}
}
/// <summary>
/// Called by the control owner when the right mouse button is pressed
/// </summary>
/// <param name="data">Graph data</param>
/// <param name="transform">Graph view transform</param>
/// <param name="dataX">Mouse X position in data space</param>
/// <param name="dataY">Mouse Y position in data space</param>
/// <param name="down">True if the button was pressed, false if the button was released</param>
/// <returns>Returns true if the event was handled, and the control owner should perform no further processing</returns>
public virtual bool OnMouseRightButton( IGraph2dSource data, GraphTransform transform, float dataX, float dataY, bool down )
{
return false;
}
/// <summary>
/// Called by the control owner when the mouse is moved
/// </summary>
/// <param name="data">Graph data</param>
/// <param name="transform">Graph view transform</param>
/// <param name="lastDataX">Previous mouse X position in data space</param>
/// <param name="lastDataY">Previous mouse Y position in data space</param>
/// <param name="dataX">Mouse X position in data space</param>
/// <param name="dataY">Mouse Y position in data space</param>
/// <returns>Returns true if the event was handled, and the control owner should perform no further processing</returns>
public virtual bool OnMouseMove( IGraph2dSource data, GraphTransform transform, float lastDataX, float lastDataY, float dataX, float dataY )
{
return false;
}
/// <summary>
/// Called by the control owner when the mouse is moved
/// </summary>
/// <param name="data">Graph data</param>
/// <param name="transform">Graph view transform</param>
/// <param name="lastDataX">Previous mouse X position in data space</param>
/// <param name="lastDataY">Previous mouse Y position in data space</param>
/// <param name="dataX">Mouse X position in data space</param>
/// <param name="dataY">Mouse Y position in data space</param>
/// <returns>Returns true if the event was handled, and the control owner should perform no further processing</returns>
public override bool OnMouseMove( IGraph2dSource data, GraphTransform transform, float lastDataX, float lastDataY, float dataX, float dataY )
{
if ( data.Disabled || m_MovingIndices == null )
{
return false;
}
GraphX2dSourceFunction1dAdapter pwlData = ( GraphX2dSourceFunction1dAdapter )data;
PiecewiseLinearFunction1d pwlFunc = ( PiecewiseLinearFunction1d )pwlData.Function;
int lastCpIndex = pwlFunc.NumControlPoints - 1;
foreach ( int cpIndex in m_MovingIndices )
{
if ( cpIndex == -1 )
{
continue;
}
Point2 cp = pwlFunc[ cpIndex ];
float deltaX = dataX - lastDataX;
float deltaY = dataY - lastDataY;
// Clamp new control point (x,y) to the bounds of the data source
float x = Rb.Core.Maths.Utils.Clamp( cp.X + deltaX, data.MinimumX, data.MaximumX );
float y = Rb.Core.Maths.Utils.Clamp( cp.Y + deltaY, data.MinimumY, data.MaximumY );
// Clamp new control point x to the two neighbouring control points
if ( ( cpIndex > 0 ) && ( x < pwlFunc[ cpIndex - 1 ].X ) )
{
x = pwlFunc[ cpIndex - 1 ].X;
}
else if ( ( cpIndex < lastCpIndex ) && ( x > pwlFunc[ cpIndex + 1 ].X ) )
{
x = pwlFunc[ cpIndex + 1 ].X;
}
pwlFunc[ cpIndex ] = new Point2( x, y );
}
return true;
}
/// <summary>
/// Called by the control owner when the right mouse button is pressed
/// </summary>
/// <param name="data">Graph data</param>
/// <param name="transform">Graph view transform</param>
/// <param name="dataX">Mouse X position in data space</param>
/// <param name="dataY">Mouse Y position in data space</param>
/// <param name="down">True if the button was pressed, false if the button was released</param>
/// <returns>Returns true if the event was handled, and the control owner should perform no further processing</returns>
public override bool OnMouseRightButton( IGraph2dSource data, GraphTransform transform, float dataX, float dataY, bool down )
{
if ( !data.Selected || data.Disabled || !down )
{
return false;
}
GraphX2dSourceFunction1dAdapter pwlData = ( GraphX2dSourceFunction1dAdapter )data;
PiecewiseLinearFunction1d pwlFunc = ( PiecewiseLinearFunction1d )pwlData.Function;
int deleteIndex = pwlFunc.FindControlPoint( new Point2( dataX, dataY ), transform.ScreenToDataYScale * ScreenSelectionTolerance );
if ( deleteIndex != -1 )
{
pwlFunc.RemoveControlPoint( deleteIndex );
return false;
}
int insertAfterIndex = 0;
for (; insertAfterIndex < pwlFunc.NumControlPoints; ++insertAfterIndex )
{
if ( dataX < pwlFunc[ insertAfterIndex ].X )
{
break;
}
}
pwlFunc.InsertControlPoint( insertAfterIndex, new Point2( dataX, dataY ) );
return true;
}
/// <summary>
/// Renders graph data
/// </summary>
/// <param name="graphics">Graphics object to render into</param>
/// <param name="transform">Graph view transform</param>
/// <param name="data">Data to render</param>
/// <param name="cursorDataPt">Position of the mouse cursor in data space</param>
/// <param name="enabled">The enabled state of the graph control</param>
public virtual void Render( IGraphCanvas graphics, GraphTransform transform, IGraph2dSource data, PointF cursorDataPt, bool enabled )
{
IGraphX2dSource eval = ( IGraphX2dSource )data;
Pen pen = ( enabled && !data.Disabled ) ? m_Pen : s_DisabledPen;
Pen shadowPen = null;
if ( !data.Disabled )
{
if ( data.Selected )
{
shadowPen = s_SelectedPen;
}
else if ( data.Highlighted )
{
shadowPen = s_HighlightedPen;
}
}
float dataX = transform.DataBounds.Left;
float dataXInc = transform.DataBounds.Width / transform.DrawBounds.Width;
Point lastPt = transform.DataToScreen( new PointF( dataX, eval.Evaluate( dataX ) ) ) ;
dataX += dataXInc;
for ( int drawX = 1; drawX < transform.DrawBounds.Width; ++drawX, dataX += dataXInc )
{
Point pt = transform.DataToScreen( new PointF( dataX, eval.Evaluate( dataX ) ) );
graphics.DrawLine( pen, lastPt.X, lastPt.Y, pt.X, pt.Y );
if ( enabled && shadowPen != null )
{
graphics.DrawLine( shadowPen, lastPt.X, lastPt.Y + 1, pt.X, pt.Y + 1 );
graphics.DrawLine( shadowPen, lastPt.X, lastPt.Y - 1, pt.X, pt.Y - 1 );
}
lastPt = pt;
}
}