/// <summary>Initializes the struct with default values.</summary>
public static TangentRef Default()
{
TangentRef value = new TangentRef();
value.keyframeRef = new KeyframeRef();
value.type = TangentType.In;
return(value);
}
private static extern bool Internal_findTangent(IntPtr thisPtr, ref Vector2I pixelCoords, out TangentRef tangent);
/// <summary>Attempts to find a a tangent handle under the provided coordinates.</summary>
/// <param name="pixelCoords">Coordinates relative to this GUI element in pixels.</param>
/// <param name="tangent">
/// Output object containing keyframe information and tangent type. Only valid if method returns true.
/// </param>
/// <returns>True if there is a tangent handle under the coordinates, false otherwise.</returns>
public bool FindTangent(Vector2I pixelCoords, out TangentRef tangent)
{
return(Internal_findTangent(mCachedPtr, ref pixelCoords, out tangent));
}
/// <summary>
/// Handles input. Should be called by the owning window whenever a pointer is pressed.
/// </summary>
/// <param name="ev">Object containing pointer press event information.</param>
internal void OnPointerPressed(PointerEvent ev)
{
if (ev.IsUsed)
return;
Vector2I windowPos = window.ScreenToWindowPos(ev.ScreenPos);
Rect2I elementBounds = GUIUtility.CalculateBounds(gui, window.GUI);
Vector2I pointerPos = windowPos - new Vector2I(elementBounds.x, elementBounds.y);
bool isOverEditor = pointerPos.x >= 0 && pointerPos.x < width && pointerPos.y >= 0 && pointerPos.y < height;
if (!isOverEditor)
return;
else
OnClicked?.Invoke();
Rect2I drawingBounds = drawingPanel.Bounds;
Vector2I drawingPos = pointerPos - new Vector2I(drawingBounds.x, drawingBounds.y);
Rect2I eventBounds = eventsPanel.Bounds;
Vector2I eventPos = pointerPos - new Vector2I(eventBounds.x, eventBounds.y);
if (ev.Button == PointerButton.Left)
{
Vector2 curveCoord;
if (guiCurveDrawing.PixelToCurveSpace(drawingPos, out curveCoord, true))
{
KeyframeRef keyframeRef;
if (!guiCurveDrawing.FindKeyFrame(drawingPos, out keyframeRef))
{
TangentRef tangentRef;
if (guiCurveDrawing.FindTangent(drawingPos, out tangentRef))
{
isMousePressedOverTangent = true;
dragStart = drawingPos;
draggedTangent = tangentRef;
}
else
ClearSelection();
}
else
{
if (!IsSelected(keyframeRef))
{
if (!Input.IsButtonHeld(ButtonCode.LeftShift) && !Input.IsButtonHeld(ButtonCode.RightShift))
ClearSelection();
SelectKeyframe(keyframeRef);
}
isMousePressedOverKey = true;
dragStart = drawingPos;
}
guiCurveDrawing.Rebuild();
UpdateEventsGUI();
}
else
{
int frameIdx = guiTimeline.GetFrame(pointerPos);
if (frameIdx != -1)
SetMarkedFrame(frameIdx);
else
{
int eventIdx;
if (guiEvents.FindEvent(eventPos, out eventIdx))
{
if (!Input.IsButtonHeld(ButtonCode.LeftShift) && !Input.IsButtonHeld(ButtonCode.RightShift))
ClearSelection();
events[eventIdx].selected = true;
UpdateEventsGUI();
}
else
{
ClearSelection();
guiCurveDrawing.Rebuild();
UpdateEventsGUI();
}
}
OnFrameSelected?.Invoke(frameIdx);
}
isPointerHeld = true;
}
else if (ev.Button == PointerButton.Right)
{
Vector2 curveCoord;
if (guiCurveDrawing.PixelToCurveSpace(drawingPos, out curveCoord, true))
{
contextClickPosition = drawingPos;
KeyframeRef keyframeRef;
if (!guiCurveDrawing.FindKeyFrame(drawingPos, out keyframeRef))
{
ClearSelection();
blankContextMenu.Open(pointerPos, gui);
guiCurveDrawing.Rebuild();
UpdateEventsGUI();
}
else
{
// If clicked outside of current selection, just select the one keyframe
if (!IsSelected(keyframeRef))
{
ClearSelection();
SelectKeyframe(keyframeRef);
guiCurveDrawing.Rebuild();
UpdateEventsGUI();
}
keyframeContextMenu.Open(pointerPos, gui);
}
}
else if (guiEvents.GetFrame(eventPos) != -1) // Clicked over events bar
{
contextClickPosition = eventPos;
int eventIdx;
if (!guiEvents.FindEvent(eventPos, out eventIdx))
{
ClearSelection();
blankEventContextMenu.Open(pointerPos, gui);
guiCurveDrawing.Rebuild();
UpdateEventsGUI();
}
else
{
// If clicked outside of current selection, just select the one event
if (!events[eventIdx].selected)
{
ClearSelection();
events[eventIdx].selected = true;
guiCurveDrawing.Rebuild();
UpdateEventsGUI();
}
eventContextMenu.Open(pointerPos, gui);
}
}
}
}
/// <summary>
/// Attempts to find a a tangent handle under the provided coordinates.
/// </summary>
/// <param name="pixelCoords">Coordinates relative to this GUI element in pixels.</param>
/// <param name="tangent">Output object containing keyframe information and tangent type. Only valid if method
/// returns true.</param>
/// <returns>True if there is a tangent handle under the coordinates, false otherwise.</returns>
public bool FindTangent(Vector2I pixelCoords, out TangentRef tangent)
{
tangent = new TangentRef();
float nearestDistance = float.MaxValue;
for (int i = 0; i < curveInfos.Length; i++)
{
EdAnimationCurve curve = curveInfos[i].curve;
KeyFrame[] keyframes = curve.KeyFrames;
for (int j = 0; j < keyframes.Length; j++)
{
if (!IsSelected(i, j))
continue;
TangentMode tangentMode = curve.TangentModes[j];
if (IsTangentDisplayed(tangentMode, TangentType.In))
{
Vector2I tangentCoords = GetTangentPosition(keyframes[j], TangentType.In);
float distanceToHandle = Vector2I.Distance(pixelCoords, tangentCoords);
if (distanceToHandle < nearestDistance)
{
nearestDistance = distanceToHandle;
tangent.keyframeRef.keyIdx = j;
tangent.keyframeRef.curveIdx = i;
tangent.type = TangentType.In;
}
; }
if (IsTangentDisplayed(tangentMode, TangentType.Out))
{
Vector2I tangentCoords = GetTangentPosition(keyframes[j], TangentType.Out);
float distanceToHandle = Vector2I.Distance(pixelCoords, tangentCoords);
if (distanceToHandle < nearestDistance)
{
nearestDistance = distanceToHandle;
tangent.keyframeRef.keyIdx = j;
tangent.keyframeRef.curveIdx = i;
tangent.type = TangentType.Out;
}
}
}
}
// We're not near any keyframe
if (nearestDistance > 5.0f)
return false;
return true;
}