wehub-resource-sync
137 lines
4.7 KiB
C#
137 lines
4.7 KiB
C#
using System.Diagnostics.CodeAnalysis;
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using ImGuiNET;
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using T3.Core.Utils;
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using T3.Editor.Gui.Interaction;
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using T3.Editor.Gui.Interaction.Snapping;
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using T3.Editor.Gui.Styling;
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using T3.Editor.Gui.UiHelpers;
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namespace T3.Editor.Gui.Windows.TimeLine.Raster;
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public abstract class AbstractTimeRaster : IValueSnapAttractor
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{
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internal abstract void Draw(TimeLineCanvas timeLineCanvas, float unitsPerSeconds, float verticalLabelAlign=1);
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protected abstract string BuildLabel(Raster raster, double timeInSeconds);
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protected double UnitsPerSecond { get; set; } = 1;
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protected abstract void InitScaleRanges(float density);
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protected virtual bool TryGetRastersForScale(double invertedScale, [NotNullWhen(true)] out Raster[]? rasters, out float fadeFactor)
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{
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var density = UserSettings.Config.TimeRasterDensity * 0.02f;
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foreach (var range in ScaleRanges)
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{
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if (range.ScaleMax < invertedScale / density)
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continue;
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fadeFactor = 1 - (float) MathUtils.RemapAndClamp(invertedScale,
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range.ScaleMin * density,
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range.ScaleMax * density,
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0,
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1);
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rasters = range.Rasters;
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return true;
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}
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fadeFactor = 0;
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rasters = null;
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return false;
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}
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private void InitializeTimeScaleDefinitions(float density)
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{
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if (ScaleRanges != null && Math.Abs(density - _density) < 0.0001)
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return;
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InitScaleRanges(density);
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_density = density;
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}
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private float _density = 1;
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protected void DrawTimeTicks(double scale, double scroll, ScalableCanvas canvas, float verticalLabelAlign = 1)
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{
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if (!(scale > Epsilon))
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return;
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InitializeTimeScaleDefinitions(UserSettings.Config.TimeRasterDensity);
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var drawList = ImGui.GetWindowDrawList();
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var topLeft = canvas.WindowPos + new Vector2(ImGui.GetScrollX(), ImGui.GetScrollY());
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var viewHeight = canvas.WindowSize.Y;
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var width = canvas.WindowSize.X;
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_usedPositions.Clear();
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var invertedScale = 1 / scale;
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if(!TryGetRastersForScale(invertedScale, out var rasters, out var fadeFactor))
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return;
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ImGui.PushFont(Fonts.FontSmall);
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// Debug string
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//ImGui.GetForegroundDrawList().AddText(topLeft, Color.Green, $"{UserSettings.Config.TimeRasterDensity /scale:0.00000}");
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foreach (var raster in rasters)
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{
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double t = -scroll % raster.Spacing;
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var lineAlpha = raster.FadeLines ? fadeFactor : 1;
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var lineColor = UiColors.GridLines.Fade(lineAlpha * 0.4f);
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var textAlpha = raster.FadeLabels ? fadeFactor : 1;
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var textColor = UiColors.Text.Fade(textAlpha);
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while (t / invertedScale < width)
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{
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var xIndex = (int)(t / invertedScale);
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if (xIndex > 0 && xIndex < width && !_usedPositions.ContainsKey(xIndex))
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{
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var timeInUnits = t + scroll;
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_usedPositions[xIndex] = timeInUnits / UnitsPerSecond;
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drawList.AddRectFilled(
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new Vector2(topLeft.X + xIndex, topLeft.Y),
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new Vector2(topLeft.X + xIndex + 1, topLeft.Y + viewHeight), lineColor);
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if (raster.Label != "")
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{
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var output = BuildLabel(raster, timeInUnits);
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// Get exact text size
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var textSize = ImGui.CalcTextSize(output);
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var p = topLeft + new Vector2(xIndex + 1, (viewHeight - textSize.Y) * verticalLabelAlign );
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drawList.AddText(p, textColor, output);
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}
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}
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t += raster.Spacing;
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}
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}
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ImGui.PopFont();
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}
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#region implement snap attractor
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public virtual void CheckForSnap(ref SnapResult snapResult)
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{
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snapResult.TryToImproveWithAnchorValueList(_usedPositions.Values);
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}
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#endregion
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private readonly Dictionary<int, double> _usedPositions = new();
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protected ScaleRange[] ScaleRanges;
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private const double Epsilon = 0.00001f;
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protected record struct ScaleRange(double ScaleMin, double ScaleMax, Raster[] Rasters);
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public record struct Raster(string Label, double Spacing, bool FadeLabels=false, bool FadeLines=false);
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} |