void DrawGrid()
{
float totalAbs = Mathf.Abs(MaxDisplayY - MinDisplayY);
var yStep = totalAbs / (AnimationCurveEditorUtility.NUM_LINES - 1);
var maxHorizontalLines = 5;
var totalHorizontalLines = maxHorizontalLines * 2 + 1;
var yPixelStep = DisplayArea.height / (totalHorizontalLines - 1);
using (new GUIChangeColor(AnimationCurveEditorUtility.LABEL_COLOR))
{
var xStep = 0;
var runningTotal = XScroll * -1.0f;
while (runningTotal <= DisplayArea.width)
{
if (runningTotal >= 0)
{
var startPos = new Vector2(runningTotal, 0.0f);
var endPos = new Vector2(runningTotal, DisplayArea.height);
using (new HandlesChangeColor((xStep % AnimationCurveEditorUtility.BOLD_STEP == 0) ? AnimationCurveEditorUtility.BOLD_GRID : AnimationCurveEditorUtility.LIGHT_GRID))
AnimationCurveEditorGUIUtility.DrawLine(startPos, endPos);
}
xStep++;
runningTotal += CurrentXMarkerDist;
if (xStep > 200)
{
break;
}
}
for (var y = 0; y <= AnimationCurveEditorUtility.NUM_LINES; y++)
{
var startPos = new Vector2(0.0f, y * yPixelStep);
var endPos = new Vector2(DisplayArea.xMax, startPos.y);
startPos.y = DisplayArea.height - startPos.y;
endPos.y = startPos.y;
Handles.color = AnimationCurveEditorUtility.LIGHT_GRID;
if (y % AnimationCurveEditorUtility.BOLD_STEP == 0)
{
GUIStyle style = null;
var skin = USEditorUtility.USeqSkin;
if (skin)
{
style = skin.GetStyle("AnimCurveLabel");
}
using (new GUIChangeColor(AnimationCurveEditorUtility.GRID_LABEL_COLOR))
GUI.Label(new Rect(startPos.x, y > 0 ? startPos.y : startPos.y - 15, 50, 20), string.Format("{0:F}", y * yStep + MinDisplayY), style);
Handles.color = AnimationCurveEditorUtility.BOLD_GRID;
}
AnimationCurveEditorGUIUtility.DrawLine(startPos, endPos);
}
}
}
void DrawCurve(USInternalCurve curve, Color curveColour)
{
if (curve.Keys.Count == 0)
{
return;
}
using (new HandlesChangeColor(curveColour))
{
for (var keyframeIndex = 1; keyframeIndex < curve.Keys.Count; keyframeIndex++)
{
var keyframe = curve.Keys[keyframeIndex];
for (var segmentIndex = 1; segmentIndex < cachedKeyframePositions[keyframe].CurveSegments.Count; segmentIndex++)
{
AnimationCurveEditorGUIUtility.DrawLine(
cachedKeyframePositions[keyframe].CurveSegments[segmentIndex - 1],
cachedKeyframePositions[keyframe].CurveSegments[segmentIndex],
XScroll,
XScale);
}
}
for (var keyframeIndex = 0; keyframeIndex < curve.Keys.Count; keyframeIndex++)
{
cachedKeyframePositions[curve.Keys[keyframeIndex]].LeftTangentColor = Color.white;
cachedKeyframePositions[curve.Keys[keyframeIndex]].RightTangentColor = Color.white;
if (SelectedTangent == 0)
{
cachedKeyframePositions[curve.Keys[keyframeIndex]].LeftTangentColor = Color.yellow;
}
if (SelectedTangent == 1)
{
cachedKeyframePositions[curve.Keys[keyframeIndex]].RightTangentColor = Color.yellow;
}
AnimationCurveEditorGUIUtility.KeyframeLabel(
curve.Keys[keyframeIndex],
cachedKeyframePositions[curve.Keys[keyframeIndex]],
(keyframeIndex == 0 && curve.UseCurrentValue),
XScroll,
XScale);
if (SelectedObjects.Count == 1 && SelectedObjects.Contains(curve.Keys[keyframeIndex]))
{
DrawTangent(cachedKeyframePositions[curve.Keys[keyframeIndex]], curve.Keys[keyframeIndex]);
}
}
}
}