/// <summary>
/// Draws the axis horizontally
/// </summary>
public void DrawHorizontal( IGraphCanvas canvas, Rectangle drawBounds, RectangleF dataBounds )
{
if ( m_TickFont == null )
{
return;
}
float cellSize = m_LineStep;
float dataX = ( int )( dataBounds.Left / cellSize ) * cellSize;
float drawY = ( ( ( -dataBounds.Top / dataBounds.Height ) * drawBounds.Height ) + drawBounds.Top );
if ( drawY < m_TickFont.Height )
{
drawY = m_TickFont.Height;
}
int widthInCells = ( int )( dataBounds.Width / cellSize ) + 1;
for ( int cellX = 0; cellX < widthInCells; ++cellX )
{
float drawX = ( ( ( dataX - dataBounds.Left ) / dataBounds.Width ) * drawBounds.Width ) + drawBounds.Left;
canvas.DrawText( m_TickFont, m_TickFontBrush, drawX, GraphUtils.InvY( drawY, drawBounds ), AxisValueToString( dataX ) );
dataX += cellSize;
}
}
/// <summary>
/// Draws the axis vertically
/// </summary>
public void DrawVertical( IGraphCanvas canvas, Rectangle drawBounds, RectangleF dataBounds )
{
if ( m_TickFont == null )
{
return;
}
float cellSize = m_LineStep;
float dataY = ( int )( dataBounds.Top / cellSize ) * cellSize;
int heightInCells = ( int )( dataBounds.Height / cellSize ) + 1;
float drawX = ( ( -dataBounds.Left / dataBounds.Width ) * drawBounds.Width ) + drawBounds.Left;
if ( drawX < 2 )
{
drawX = 2;
}
for ( int cellY = 0; cellY < heightInCells; ++cellY )
{
float drawY = ( ( ( dataY - dataBounds.Top ) / dataBounds.Height ) * drawBounds.Height ) + drawBounds.Top;
canvas.DrawText( m_TickFont, m_TickFontBrush, drawX, GraphUtils.InvY( drawY, drawBounds ), AxisValueToString( dataY ) );
dataY += cellSize;
}
}
/// <summary>
/// Draws legends for all the graphs
/// </summary>
public static void DrawLegends( IGraphCanvas graphics, Font font, IEnumerable< GraphComponent > graphComponents )
{
int x = 0;
int y = 0;
using ( SolidBrush fontBrush = new SolidBrush( Color.Black ) )
{
using ( Pen pen = new Pen( Color.Black ) )
{
foreach ( GraphComponent graphComponent in graphComponents )
{
fontBrush.Color = ( graphComponent.Renderer != null ) ? graphComponent.Renderer.Colour : Color.Black;
pen.Color = fontBrush.Color;
graphics.DrawText( font, fontBrush, x, y, graphComponent.Name );
y += font.Height + 2;
//graphics.DrawLine( pen, x, y, x + 30, y );
}
}
}
}