private void UpdateArmorSpectrum()
{
var finalSpectrumStops = new SortedDictionary <double, GradientStop>();
foreach (var spectrumStop in _sortedSpectrumStops)
{
finalSpectrumStops.Add(spectrumStop.Offset, spectrumStop.Clone());
}
var minValue = _sortedTicks[_sortedTicks.Length - 1];
var maxValue = _sortedTicks[0];
var valueRange = maxValue - minValue;
var tickOffsets = new double[_sortedTicks.Length];
// create spectrum stops
var spectrumStopStartIndex = 0;
for (int tickIndex = 0; tickIndex < _sortedTicks.Length; ++tickIndex)
{
var tick = _sortedTicks[tickIndex];
var valueOffset = 1 - (tick - minValue) / valueRange;
tickOffsets[tickIndex] = valueOffset;
if (finalSpectrumStops.ContainsKey(valueOffset))
{
continue;
}
for (int spectrumStopIndex = spectrumStopStartIndex; spectrumStopIndex < _sortedSpectrumStops.Length; ++spectrumStopIndex)
{
var spectrumStop = _sortedSpectrumStops[spectrumStopIndex];
if (spectrumStop.Offset > valueOffset)
{
// create a spectrum stop for this value
var previousSpectrumStopIndex = spectrumStopIndex - 1;
var previousSpectrumStop = _sortedSpectrumStops[previousSpectrumStopIndex];
var colorOffset = (valueOffset - previousSpectrumStop.Offset) / (spectrumStop.Offset - previousSpectrumStop.Offset);
var color = ColorEx.Interpolate(previousSpectrumStop.Color, spectrumStop.Color, colorOffset);
finalSpectrumStops.Add(valueOffset, new GradientStop(color, valueOffset));
spectrumStopStartIndex = previousSpectrumStopIndex;
break;
}
else if (spectrumStop.Offset == valueOffset)
{
// this spectrum stop is already existed, no need to add again
spectrumStopStartIndex = spectrumStopIndex;
break;
}
}
}
// remap spectrum offsets
var mappedOffsetRangePerStop = 1.0 / (_sortedTicks.Length - 1);
spectrumStopStartIndex = 0;
var finalSpectrumStopArray = finalSpectrumStops.Values.ToArray();
var headerAndFooterSize = 1.0 / _sortedTicks.Length / 2.0;
for (int tickIndex = 0; tickIndex < _sortedTicks.Length; ++tickIndex)
{
var tickOffset = tickOffsets[tickIndex];
var minMappedOffset = Math.Max(headerAndFooterSize, (tickIndex - 0.5) * mappedOffsetRangePerStop);
var maxMappedOffset = Math.Min(1.0 - headerAndFooterSize, (tickIndex + 0.5) * mappedOffsetRangePerStop);
var mappedOffsetRange = maxMappedOffset - minMappedOffset;
var minOffset = tickIndex == 0 ? 0.0 : tickOffset - (tickOffset - tickOffsets[tickIndex - 1]) / 2;
var maxOffset = tickIndex == _sortedTicks.Length - 1 ? 1.0 : tickOffset + (tickOffsets[tickIndex + 1] - tickOffset) / 2;
var offsetRange = maxOffset - minOffset;
for (int spectrumStopIndex = spectrumStopStartIndex; spectrumStopIndex < finalSpectrumStopArray.Length; ++spectrumStopIndex)
{
var spectrumStop = finalSpectrumStopArray[spectrumStopIndex];
if (spectrumStop.Offset <= maxOffset && !spectrumStop.IsFrozen)
{
spectrumStop.Offset = (spectrumStop.Offset - minOffset) / offsetRange * mappedOffsetRange + minMappedOffset;
spectrumStop.Freeze();
}
else
{
spectrumStopStartIndex = spectrumStopIndex;
break;
}
}
}
this.Spectrum.Fill = new LinearGradientBrush(new GradientStopCollection(finalSpectrumStopArray));
// create tick labels
this.TicksContainer.RowDefinitions.Clear();
this.TicksContainer.Children.Clear();
for (int tickIndex = 0; tickIndex < _sortedTicks.Length; ++tickIndex)
{
this.TicksContainer.RowDefinitions.Add(new RowDefinition()
{
Height = new GridLength(1.0, GridUnitType.Star)
});
var tickLabel = new TextBlock(new Run(_sortedTicks[tickIndex].ToString("F0")));
tickLabel.VerticalAlignment = VerticalAlignment.Center;
tickLabel.HorizontalAlignment = HorizontalAlignment.Center;
tickLabel.FontSize = 10;
this.TicksContainer.Children.Add(tickLabel);
Grid.SetRow(tickLabel, tickIndex);
}
}
