public void FixTextToRectTrans()
{
for (int c = 0; c < refCurves.Length; c++)
{
CUIBezierCurve curve = refCurves[c];
for (int p = 0; p < CUIBezierCurve.CubicBezierCurvePtNum; p++)
{
if (curve.ControlPoints != null)
{
Vector3[] controlPoints = curve.ControlPoints;
if (c == 0)
{
controlPoints[p].y = -rectTrans.rect.height * rectTrans.pivot.y;
}
else
{
controlPoints[p].y = rectTrans.rect.height - rectTrans.rect.height * rectTrans.pivot.y;
}
controlPoints[p].x = rectTrans.rect.width * p / (CUIBezierCurve.CubicBezierCurvePtNum - 1);
controlPoints[p].x -= rectTrans.rect.width * rectTrans.pivot.x;
controlPoints[p].z = 0;
}
}
}
}
protected virtual void OnSceneGUI()
{
// for CUITextEditor, allow using scene UI to change the control points of the bezier curves
CUIGraphic script = (CUIGraphic)this.target;
script.ReportSet();
for (int c = 0; c < script.RefCurves.Length; c++)
{
CUIBezierCurve curve = script.RefCurves[c];
if (curve.ControlPoints != null)
{
Vector3[] controlPoints = curve.ControlPoints;
Transform handleTransform = curve.transform;
Quaternion handleRotation = curve.transform.rotation;
for (int p = 0; p < CUIBezierCurve.CubicBezierCurvePtNum; p++)
{
EditorGUI.BeginChangeCheck();
Handles.Label(handleTransform.TransformPoint(controlPoints[p]), string.Format("Control Point {0}", p + 1));
Vector3 newPt = Handles.DoPositionHandle(handleTransform.TransformPoint(controlPoints[p]), handleRotation);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(curve, "Move Point");
Undo.RecordObject(script, "Move Point");
EditorUtility.SetDirty(curve);
controlPoints[p] = handleTransform.InverseTransformPoint(newPt);
}
}
Handles.color = Color.gray;
Handles.DrawLine(handleTransform.TransformPoint(controlPoints[0]), handleTransform.TransformPoint(controlPoints[1]));
Handles.DrawLine(handleTransform.TransformPoint(controlPoints[1]), handleTransform.TransformPoint(controlPoints[2]));
Handles.DrawLine(handleTransform.TransformPoint(controlPoints[2]), handleTransform.TransformPoint(controlPoints[3]));
int sampleSize = 10;
Handles.color = Color.white;
for (int s = 0; s < sampleSize; s++)
{
Handles.DrawLine(handleTransform.TransformPoint(curve.GetPoint((float)s / sampleSize)), handleTransform.TransformPoint(curve.GetPoint((float)(s + 1) / sampleSize)));
}
curve.EDITOR_ControlPoints = controlPoints;
}
}
if (script.RefCurves != null)
{
Handles.DrawLine(script.RefCurves[0].transform.TransformPoint(script.RefCurves[0].ControlPoints[0]), script.RefCurves[1].transform.TransformPoint(script.RefCurves[1].ControlPoints[0]));
Handles.DrawLine(script.RefCurves[0].transform.TransformPoint(script.RefCurves[0].ControlPoints[3]), script.RefCurves[1].transform.TransformPoint(script.RefCurves[1].ControlPoints[3]));
}
script.Refresh();
}
public void ReferenceCUIForBCurves()
{
// compute the position ratio of this rect transform in perspective of reference rect transform
Vector3 posDeltaBetweenBottomLeftCorner = rectTrans.localPosition;// Difference between pivot
posDeltaBetweenBottomLeftCorner.x += -rectTrans.rect.width * rectTrans.pivot.x + (refCUIGraphic.rectTrans.rect.width * refCUIGraphic.rectTrans.pivot.x);
posDeltaBetweenBottomLeftCorner.y += -rectTrans.rect.height * rectTrans.pivot.y + (refCUIGraphic.rectTrans.rect.height * refCUIGraphic.rectTrans.pivot.y);
//posDeltaBetweenBottomLeftCorner.z = rectTrans.localPosition.z;
Vector3 bottomLeftPosRatio = new Vector3(posDeltaBetweenBottomLeftCorner.x / refCUIGraphic.RectTrans.rect.width, posDeltaBetweenBottomLeftCorner.y / refCUIGraphic.RectTrans.rect.height, posDeltaBetweenBottomLeftCorner.z);
Vector3 topRightPosRatio = new Vector3((posDeltaBetweenBottomLeftCorner.x + rectTrans.rect.width) / refCUIGraphic.RectTrans.rect.width, (posDeltaBetweenBottomLeftCorner.y + rectTrans.rect.height) / refCUIGraphic.RectTrans.rect.height, posDeltaBetweenBottomLeftCorner.z);
refCurves[0].ControlPoints[0] = refCUIGraphic.GetBCurveSandwichSpacePoint(bottomLeftPosRatio.x, bottomLeftPosRatio.y) - rectTrans.localPosition;
refCurves[0].ControlPoints[3] = refCUIGraphic.GetBCurveSandwichSpacePoint(topRightPosRatio.x, bottomLeftPosRatio.y) - rectTrans.localPosition;
refCurves[1].ControlPoints[0] = refCUIGraphic.GetBCurveSandwichSpacePoint(bottomLeftPosRatio.x, topRightPosRatio.y) - rectTrans.localPosition;
refCurves[1].ControlPoints[3] = refCUIGraphic.GetBCurveSandwichSpacePoint(topRightPosRatio.x, topRightPosRatio.y) - rectTrans.localPosition;
// use two sample points from the reference curves to find the second and third controls points for this curves
for (int c = 0; c < refCurves.Length; c++)
{
CUIBezierCurve curve = refCurves[c];
float yTime = c == 0 ? bottomLeftPosRatio.y : topRightPosRatio.y;
Vector3 leftPoint = refCUIGraphic.GetBCurveSandwichSpacePoint(bottomLeftPosRatio.x, yTime);
Vector3 rightPoint = refCUIGraphic.GetBCurveSandwichSpacePoint(topRightPosRatio.x, yTime);
float quarter = 0.25f,
threeQuarter = 0.75f;
Vector3 quarterPoint = refCUIGraphic.GetBCurveSandwichSpacePoint((bottomLeftPosRatio.x * 0.75f + topRightPosRatio.x * 0.25f) / 1.0f, yTime);
Vector3 threeQuaterPoint = refCUIGraphic.GetBCurveSandwichSpacePoint((bottomLeftPosRatio.x * 0.25f + topRightPosRatio.x * 0.75f) / 1.0f, yTime);
float x_1 = 3 * threeQuarter * threeQuarter * quarter, // (1 - t)(1 - t)t
y_1 = 3 * threeQuarter * quarter * quarter,
x_2 = 3 * quarter * quarter * threeQuarter,
y_2 = 3 * quarter * threeQuarter * threeQuarter;
Vector3 contant_1 = quarterPoint - Mathf.Pow(threeQuarter, 3) * leftPoint - Mathf.Pow(quarter, 3) * rightPoint,
contant_2 = threeQuaterPoint - Mathf.Pow(quarter, 3) * leftPoint - Mathf.Pow(threeQuarter, 3) * rightPoint,
p1,
p2;
solveDoubleEquationWithVector(x_1, y_1, x_2, y_2, contant_1, contant_2, out p1, out p2);
curve.ControlPoints[1] = p1 - rectTrans.localPosition;
curve.ControlPoints[2] = p2 - rectTrans.localPosition;
}
// use tangent and start and end time to derive control point 2 and 3
}
protected void OnSceneGUI()
{
CUIBezierCurve script = (CUIBezierCurve)this.target;
if (script.ControlPoints != null)
{
Vector3[] controlPoints = script.ControlPoints;
Transform handleTransform = script.transform;
Quaternion handleRotation = script.transform.rotation;
for (int p = 0; p < CUIBezierCurve.CubicBezierCurvePtNum; p++)
{
EditorGUI.BeginChangeCheck();
Vector3 newPt = Handles.DoPositionHandle(handleTransform.TransformPoint(controlPoints[p]), handleRotation);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(script, "Move Point");
EditorUtility.SetDirty(script);
controlPoints[p] = handleTransform.InverseTransformPoint(newPt);
script.Refresh();
}
}
Handles.color = Color.gray;// new Color(0.8f,0.8f,0.8f)
Handles.DrawLine(handleTransform.TransformPoint(controlPoints[0]), handleTransform.TransformPoint(controlPoints[1]));
Handles.DrawLine(handleTransform.TransformPoint(controlPoints[1]), handleTransform.TransformPoint(controlPoints[2]));
Handles.DrawLine(handleTransform.TransformPoint(controlPoints[2]), handleTransform.TransformPoint(controlPoints[3]));
int sampleSize = 10;
Handles.color = Color.white;
for (int s = 0; s < sampleSize; s++)
{
Handles.DrawLine(handleTransform.TransformPoint(script.GetPoint((float)s / sampleSize)), handleTransform.TransformPoint(script.GetPoint((float)(s + 1) / sampleSize)));
}
script.EDITOR_ControlPoints = controlPoints;
}
}
public void Refresh()
{
ReportSet();
// we use local position as the true value. Ratio position follows it, so it should be updated when refresh
for (int c = 0; c < refCurves.Length; c++)
{
CUIBezierCurve curve = refCurves[c];
if (curve.ControlPoints != null)
{
Vector3[] controlPoints = curve.ControlPoints;
for (int p = 0; p < CUIBezierCurve.CubicBezierCurvePtNum; p++)
{
#if UNITY_EDITOR
Undo.RecordObject(this, "Move Point");
#endif
Vector3 ratioPoint = controlPoints[p];
ratioPoint.x = (ratioPoint.x + rectTrans.rect.width * rectTrans.pivot.x) / rectTrans.rect.width;
ratioPoint.y = (ratioPoint.y + rectTrans.rect.height * rectTrans.pivot.y) / rectTrans.rect.height;
refCurvesControlRatioPoints[c][p] = ratioPoint;
}
}
}
//uiText.SetAllDirty();
// need this to refresh the UI text, SetAllDirty does not seem to work for all cases
if (uiGraphic != null)
{
uiGraphic.enabled = false;
uiGraphic.enabled = true;
}
}
public void UpdateCurveControlPointPositions()
{
ReportSet();
for (int c = 0; c < refCurves.Length; c++)
{
CUIBezierCurve curve = refCurves[c];
#if UNITY_EDITOR
Undo.RecordObject(curve, "Move Rect");
#endif
for (int p = 0; p < refCurves[c].ControlPoints.Length; p++)
{
Vector3 newPt = refCurvesControlRatioPoints[c][p];
newPt.x = newPt.x * rectTrans.rect.width - rectTrans.rect.width * rectTrans.pivot.x;
newPt.y = newPt.y * rectTrans.rect.height - rectTrans.rect.height * rectTrans.pivot.y;
curve.ControlPoints[p] = newPt;
}
}
}
