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Refactor timeline grid drawing to share code between Editor UI elements

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This commit is contained in:
Wojtek Figat
2024-03-16 16:44:57 +01:00
parent c6bb8f1784
commit f81e89d7d4
3 changed files with 91 additions and 115 deletions
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58
Source/Editor/GUI/Timeline/GUI/Background.cs
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@@ -28,7 +28,6 @@ namespace FlaxEditor.GUI.Timeline.GUI
{
_timeline = timeline;
_tickSteps = Utilities.Utils.CurveTickSteps;
_tickStrengths = new float[_tickSteps.Length];
}
private void UpdateSelectionRectangle()
@@ -173,55 +172,20 @@ namespace FlaxEditor.GUI.Timeline.GUI
var rightFrame = Mathf.Ceil((right - Timeline.StartOffset) / zoom) * _timeline.FramesPerSecond;
var min = leftFrame;
var max = rightFrame;
int smallestTick = 0;
int biggestTick = _tickSteps.Length - 1;
for (int i = _tickSteps.Length - 1; i >= 0; i--)
{
// Calculate how far apart these modulo tick steps are spaced
float tickSpacing = _tickSteps[i] * _timeline.Zoom;
// Calculate the strength of the tick markers based on the spacing
_tickStrengths[i] = Mathf.Saturate((tickSpacing - minDistanceBetweenTicks) / (maxDistanceBetweenTicks - minDistanceBetweenTicks));
// Beyond threshold the ticks don't get any bigger or fatter
if (_tickStrengths[i] >= 1)
biggestTick = i;
// Do not show small tick markers
if (tickSpacing <= minDistanceBetweenTicks)
{
smallestTick = i;
break;
}
}
int tickLevels = biggestTick - smallestTick + 1;
// Draw vertical lines for time axis
for (int level = 0; level < tickLevels; level++)
var pixelsInRange = _timeline.Zoom;
var pixelRange = pixelsInRange * (max - min);
var tickRange = Utilities.Utils.DrawCurveTicks((float tick, float strength) =>
{
float strength = _tickStrengths[smallestTick + level];
if (strength <= Mathf.Epsilon)
continue;
// Draw all ticks
int l = Mathf.Clamp(smallestTick + level, 0, _tickSteps.Length - 1);
var lStep = _tickSteps[l];
var lNextStep = _tickSteps[l + 1];
int startTick = Mathf.FloorToInt(min / lStep);
int endTick = Mathf.CeilToInt(max / lStep);
Color lineColor = style.ForegroundDisabled.RGBMultiplied(0.7f).AlphaMultiplied(strength);
for (int i = startTick; i <= endTick; i++)
{
if (l < biggestTick && (i % Mathf.RoundToInt(lNextStep / lStep) == 0))
continue;
var tick = i * lStep;
var time = tick / _timeline.FramesPerSecond;
var x = time * zoom + Timeline.StartOffset;
// Draw line
Render2D.FillRectangle(new Rectangle(x - 0.5f, 0, 1.0f, height), lineColor);
}
}
var time = tick / _timeline.FramesPerSecond;
var x = time * zoom + Timeline.StartOffset;
var lineColor = style.ForegroundDisabled.RGBMultiplied(0.7f).AlphaMultiplied(strength);
Render2D.FillRectangle(new Rectangle(x - 0.5f, 0, 1.0f, height), lineColor);
}, _tickSteps, ref _tickStrengths, min, max, pixelRange, minDistanceBetweenTicks, maxDistanceBetweenTicks);
var smallestTick = tickRange.X;
var biggestTick = tickRange.Y;
var tickLevels = biggestTick - smallestTick + 1;
// Draw selection rectangle
if (_isSelecting)