/// <summary>
/// Добавление на канвас "серой" области
/// </summary>
/// <param name="canvas"></param>
/// <param name="X1"></param>
/// <param name="X2"></param>
/// <param name="manager"></param>
protected static void AddWhitespace(Canvas canvas, double X1, double X2, ScaleManager manager)
{
if (X2 <= X1)
{
return;
}
double d_start = manager.GetOffset((UInt64)X1);
double d_end = manager.GetOffset((UInt64)X2);
Rectangle rect = new Rectangle();
rect.Stroke = new SolidColorBrush(Colors.Green);
rect.Fill = new SolidColorBrush(Color.FromArgb(100, 125, 125, 125));
rect.Width = d_end - d_start;
rect.Height = (canvas.ActualHeight != 0) ? canvas.ActualHeight - 4 : 4;
canvas.Children.Add(rect);
Canvas.SetLeft(rect, d_start);
Canvas.SetBottom(rect, 2);
}
/// <summary>
/// Отображение простого сигнала
/// </summary>
/// <param name="canvas"></param>
/// <param name="iter"></param>
/// <param name="DrawValue"></param>
protected void RenderSimpleSignal(Canvas canvas, IValueIterator iter, DrawValueDelegate DrawValue)
{
markers.Clear();
canvas.Children.Clear();
UInt64 MinimumVisibleChange = scaleManager.MinimumVisibleChange;
//Рисование начала диаграммы
UInt64 x1 = 0, x2 = 0;
string value = string.Empty;
x1 = scaleManager.VisibleStartTime;
iter.SetCurrentIndexByKey(scaleManager.VisibleStartTime);
x2 = iter.LastEvent;
if (x2 > scaleManager.VisibleEndTime)
{
x2 = scaleManager.VisibleEndTime;
}
if (x2 < scaleManager.VisibleStartTime)
{
x2 = scaleManager.VisibleStartTime;
}
Markers.Add(new TimeMarker(x1, scaleManager.GetOffset(x1)));
while (true)
{
//Началась "серая" область
if ((x2 - x1) <= MinimumVisibleChange)
{
UInt64 whitespace = x1;
while (true)
{
x1 = iter.LastEvent;
if (x1 > scaleManager.VisibleEndTime)
{
x1 = scaleManager.VisibleEndTime;
}
if (x1 < scaleManager.VisibleStartTime)
{
x1 = scaleManager.VisibleStartTime;
}
iter.MoveNext();
x2 = iter.LastEvent;
if (x2 > scaleManager.VisibleEndTime)
{
x2 = scaleManager.VisibleEndTime;
}
if (x2 < scaleManager.VisibleStartTime)
{
x2 = scaleManager.VisibleStartTime;
}
//закончилась "серая" область
if ((x2 - x1) >= scaleManager.MinimumVisibleChange)
{
AddWhitespace(canvas, whitespace, x1, scaleManager);
value = AbstractSignalDump.GetStringValue(iter);
Markers.Add(new TimeMarker(x1, scaleManager.GetOffset(x1)));
DrawValue(canvas, x1, x2, scaleManager, value);
break;
}
if ((iter.LastEvent >= scaleManager.VisibleEndTime) || (iter.IsEndOfIteration == true))
{
AddWhitespace(canvas, whitespace, iter.LastEvent, scaleManager);
Markers.Add(new TimeMarker(iter.LastEvent, scaleManager.GetOffset(iter.LastEvent)));
break;
}
iter.SetCurrentIndexByKey(x1 + MinimumVisibleChange);
}
}
else
{
value = AbstractSignalDump.GetStringValue(iter);
Markers.Add(new TimeMarker(x1, scaleManager.GetOffset(x1)));
DrawValue(canvas, x1, x2, scaleManager, value);
iter.MoveNext();
}
x1 = x2;
x2 = iter.LastEvent;
if ((iter.LastEvent >= scaleManager.VisibleEndTime) || (iter.IsEndOfIteration == true))
{
value = AbstractSignalDump.GetStringValue(iter);
Markers.Add(new TimeMarker(x1, scaleManager.GetOffset(x1)));
DrawValue(canvas, x1, scaleManager.VisibleEndTime, scaleManager, value);
break;
}
if (x2 > scaleManager.VisibleEndTime)
{
x2 = scaleManager.VisibleEndTime;
}
if (x2 < scaleManager.VisibleStartTime)
{
x2 = scaleManager.VisibleStartTime;
}
}
}
