/// <summary>
/// Defines brush to draw stop element.
/// </summary>
/// <param name="stop">Stop.</param>
/// <param name="context">Drawing context.</param>
/// <returns></returns>
private static Brush _GetFillBrush(StopInfo stopInfo, GanttItemElementDrawingContext context)
{
Debug.Assert(context != null);
// Define selected color.
if (context.DrawSelected)
{
return(GanttControlHelper.GetSelectedBrush());
}
// Define location color.
if (stopInfo.Stop.StopType == StopType.Location)
{
return(GanttControlHelper.GetLocationBrush());
}
// Define Break color.
if (stopInfo.Stop.StopType == StopType.Lunch)
{
return(GanttControlHelper.GetBreakBrush());
}
// Define locked color.
if (stopInfo.Stop.IsLocked || (stopInfo.Route != null && stopInfo.Route.IsLocked))
{
return(GanttControlHelper.GetLockedBrush(stopInfo.Route.Color));
}
// If stop is Order, not locked, not selected and not dragged over - return normal fill color.
return(GanttControlHelper.GetFillBrush(stopInfo.Route.Color));
}
/// <summary>
/// Draws transparent element with container's width in default. If element is dragged over highlights Time windows of dregged order.
/// </summary>
/// <param name="context">Drawing context.</param>
public void Draw(GanttItemElementDrawingContext context)
{
Rect elementSize = new Rect(context.DrawingArea.X, context.DrawingArea.Top, context.DrawingArea.Width, context.DrawingArea.Height);
SolidColorBrush fillBrush = new SolidColorBrush(Colors.Transparent);
Pen drawPen = GanttControlHelper.GetPen();
// Draw element.
context.DrawingContext.DrawRectangle(fillBrush, drawPen, elementSize);
// Draw dragged over element.
if (context.DrawDraggedOver)
{
Debug.Assert(ParentGanttItem.Tag != null);
Brush draggedOverBrush = GanttControlHelper.GetEmptyElementDragOverFillBrush(((Route)ParentGanttItem.Tag).Color);
Pen pen = new Pen(fillBrush, 0);
pen.Freeze();
// Define collection of highlighted rectangles.
Collection <Rect> highlightedRects = _GetHighlightedRects(context);
if (highlightedRects == null)
{
return;
}
// Draw dragged over areas.
foreach (Rect rect in highlightedRects)
{
context.DrawingContext.DrawRoundedRectangle(draggedOverBrush, pen, rect, ROUND_RADIUS, ROUND_RADIUS);
}
}
}
/// <summary>
/// Defines brush to draw drivetime element.
/// </summary>
/// <param name="context">Drawing context.</param>
/// <returns></returns>
private Brush _GetFillBrush(GanttItemElementDrawingContext context)
{
Debug.Assert(_stop != null);
Debug.Assert(_route != null);
Debug.Assert(context != null);
// Define selected color.
if (context.DrawSelected)
{
return(GanttControlHelper.GetSelectedBrush());
}
// Define dragged over color.
if (context.DrawDraggedOver)
{
return(GanttControlHelper.GetDragOverBrush());
}
// Define locked color.
if (_stop.IsLocked || _route.IsLocked)
{
return(GanttControlHelper.GetLockedBrush(_route.Color));
}
// If stop is Order, not locked, not selected and not dragged over - return normal fill color.
return(GanttControlHelper.GetFillBrush(_route.Color));
}
/// <summary>
/// Draws internal gradient effect.
/// </summary>
/// <param name="context">Drawing context.</param>
private static void _DrawGradientEffect(GanttItemElementDrawingContext context)
{
Rect elementRect = _GetGradientRect(context);
Brush gradientBrush = GanttControlHelper.GetGradientEffectBrush();
Pen drawPen = GanttControlHelper.GetPen();
context.DrawingContext.DrawRoundedRectangle(gradientBrush, drawPen, elementRect, ROUND_RADIUS, ROUND_RADIUS);
}
/// <summary>
/// Draws gantt item element.
/// </summary>
/// <param name="fillBrush">Filling brush.</param>
/// <param name="context">Context.</param>
private static void _DrawRectangle(Brush fillBrush, GanttItemElementDrawingContext context)
{
// Draw shadow effect.
_DrawShadowEffect(context);
Rect elementRect = _GetElementRect(context);
Pen drawPen = GanttControlHelper.GetPen();
// Draw rectangle.
context.DrawingContext.DrawRoundedRectangle(fillBrush, drawPen, elementRect, ROUND_RADIUS, ROUND_RADIUS);
// Draw top gradient effect.
_DrawGradientEffect(context);
}
public void Draw(GanttItemElementDrawingContext context)
{
Debug.Assert(_stop != null);
Debug.Assert(_route != null);
// Define element size.
double yPos = context.DrawingArea.Top + context.DrawingArea.Height / HEIGHT_INDEX;
double height = context.DrawingArea.Height / HEIGHT_INDEX;
Rect elementSize = new Rect(context.DrawingArea.X, yPos, context.DrawingArea.Width, height);
Brush fillBrush = _GetFillBrush(context);
Pen drawPen = GanttControlHelper.GetPen();
// Draw element.
context.DrawingContext.DrawRoundedRectangle(fillBrush, drawPen, elementSize, ROUND_RADIUS, ROUND_RADIUS);
}
/// <summary>
/// Draws stop.
/// </summary>
/// <param name="stopInfo">Information about stop. Used for optimizing performance.</param>
/// <param name="context">DrawingContext.</param>
/// <remarks>
/// Getting some relation properties (like Route, AssociatedObject) from stop takes some time
/// due to the data layer implementation specifics. To improve perofmrance on rendering of
/// large amount of stops use this method passing cached value of stop's properties.
/// </remarks>
public static void DrawStop(StopInfo stopInfo, GanttItemElementDrawingContext context)
{
Debug.Assert(stopInfo.Stop != null);
Debug.Assert(stopInfo.Route != null);
Debug.Assert(context != null);
Brush fillBrush = _GetFillBrush(stopInfo, context);
// Draw element.
_DrawRectangle(fillBrush, context);
// Draw violated icon.
if (stopInfo.Stop.IsViolated)
{
Rect elementRect = _GetElementRect(context);
Rect violatedIconRect = new Rect(elementRect.Left + GAP_SIZE, elementRect.Top + GAP_SIZE, ICON_SIZE, ICON_SIZE);
violatedIconRect.Width = (violatedIconRect.Width > elementRect.Width) ? elementRect.Width : violatedIconRect.Width;
ImageBrush brush = GanttControlHelper.GetViolatedBrush();
context.DrawingContext.DrawImage(brush.ImageSource, violatedIconRect);
}
}
