/// <summary>
/// Opens the edit window for the currently selected keyframe.
/// </summary>
private void EditSelectedKeyframe()
{
if (disableCurveEdit)
{
ShowReadOnlyMessage();
return;
}
if (selectedKeyframes.Count == 0)
{
return;
}
EdAnimationCurve curve = curveInfos[selectedKeyframes[0].curveIdx].curve;
KeyFrame[] keyFrames = curve.KeyFrames;
int keyIndex = selectedKeyframes[0].keyIndices[0];
KeyFrame keyFrame = keyFrames[keyIndex];
Vector2I position = guiCurveDrawing.CurveToPixelSpace(new Vector2(keyFrame.time, keyFrame.value));
Rect2I drawingBounds = GUIUtility.CalculateBounds(drawingPanel, window.GUI);
position.x = MathEx.Clamp(position.x, 0, drawingBounds.width);
position.y = MathEx.Clamp(position.y, 0, drawingBounds.height);
Vector2I windowPos = position + new Vector2I(drawingBounds.x, drawingBounds.y);
KeyframeEditWindow editWindow = DropDownWindow.Open <KeyframeEditWindow>(window, windowPos);
editWindow.Initialize(keyFrame, x =>
{
curve.UpdateKeyframe(keyIndex, x.time, x.value);
curve.Apply();
// TODO UNDOREDO
guiCurveDrawing.Rebuild();
OnCurveModified?.Invoke();
});
}
/// <summary>
/// Handles input. Should be called by the owning window whenever a pointer is moved.
/// </summary>
/// <param name="ev">Object containing pointer move event information.</param>
internal void OnPointerMoved(PointerEvent ev)
{
if (ev.Button != PointerButton.Left)
{
return;
}
if (isPointerHeld)
{
Vector2I windowPos = window.ScreenToWindowPos(ev.ScreenPos);
Rect2I elementBounds = GUIUtility.CalculateBounds(gui, window.GUI);
Vector2I pointerPos = windowPos - new Vector2I(elementBounds.x, elementBounds.y);
if (isMousePressedOverKey || isMousePressedOverTangent)
{
Rect2I drawingBounds = drawingPanel.Bounds;
Vector2I drawingPos = pointerPos - new Vector2I(drawingBounds.x, drawingBounds.y);
if (!isDragInProgress)
{
int distance = Vector2I.Distance(drawingPos, dragStart);
if (distance >= DRAG_START_DISTANCE)
{
if (isMousePressedOverKey && !disableCurveEdit)
{
draggedKeyframes.Clear();
foreach (var selectedEntry in selectedKeyframes)
{
EdAnimationCurve curve = curveInfos[selectedEntry.curveIdx].curve;
KeyFrame[] keyFrames = curve.KeyFrames;
DraggedKeyframes newEntry = new DraggedKeyframes();
newEntry.curveIdx = selectedEntry.curveIdx;
draggedKeyframes.Add(newEntry);
foreach (var keyframeIdx in selectedEntry.keyIndices)
{
newEntry.keys.Add(new DraggedKeyframe(keyframeIdx, keyFrames[keyframeIdx]));
}
}
}
// TODO - UNDOREDO record keyframe or tangent
isDragInProgress = true;
}
}
if (isDragInProgress)
{
if (isMousePressedOverKey && !disableCurveEdit)
{
Vector2 diff = Vector2.Zero;
Vector2 dragStartCurve;
if (guiCurveDrawing.PixelToCurveSpace(dragStart, out dragStartCurve))
{
Vector2 currentPosCurve;
if (guiCurveDrawing.PixelToCurveSpace(drawingPos, out currentPosCurve))
{
diff = currentPosCurve - dragStartCurve;
}
}
foreach (var draggedEntry in draggedKeyframes)
{
EdAnimationCurve curve = curveInfos[draggedEntry.curveIdx].curve;
for (int i = 0; i < draggedEntry.keys.Count; i++)
{
DraggedKeyframe draggedKey = draggedEntry.keys[i];
float newTime = draggedKey.original.time + diff.x;
float newValue = draggedKey.original.value + diff.y;
int newIndex = curve.UpdateKeyframe(draggedKey.index, newTime, newValue);
// It's possible key changed position due to time change, but since we're moving all
// keys at once they cannot change position relative to one another, otherwise we would
// need to update indices for other keys as well.
draggedKey.index = newIndex;
draggedEntry.keys[i] = draggedKey;
}
curve.Apply();
}
// Rebuild selected keys from dragged keys (after potential sorting)
ClearSelection();
foreach (var draggedEntry in draggedKeyframes)
{
foreach (var keyframe in draggedEntry.keys)
{
SelectKeyframe(new KeyframeRef(draggedEntry.curveIdx, keyframe.index));
}
}
OnCurveModified?.Invoke();
guiCurveDrawing.Rebuild();
UpdateEventsGUI();
}
else if (isMousePressedOverTangent && !disableCurveEdit)
{
EdAnimationCurve curve = curveInfos[draggedTangent.keyframeRef.curveIdx].curve;
KeyFrame keyframe = curve.KeyFrames[draggedTangent.keyframeRef.keyIdx];
Vector2 keyframeCurveCoords = new Vector2(keyframe.time, keyframe.value);
Vector2 currentPosCurve;
if (guiCurveDrawing.PixelToCurveSpace(drawingPos, out currentPosCurve))
{
Vector2 normal = currentPosCurve - keyframeCurveCoords;
normal = normal.Normalized;
float tangent = EdAnimationCurve.NormalToTangent(normal);
if (draggedTangent.type == TangentType.In)
{
if (normal.x > 0.0f)
{
tangent = float.PositiveInfinity;
}
keyframe.inTangent = -tangent;
if (curve.TangentModes[draggedTangent.keyframeRef.keyIdx] == TangentMode.Free)
{
keyframe.outTangent = -tangent;
}
}
else
{
if (normal.x < 0.0f)
{
tangent = float.PositiveInfinity;
}
keyframe.outTangent = tangent;
if (curve.TangentModes[draggedTangent.keyframeRef.keyIdx] == TangentMode.Free)
{
keyframe.inTangent = tangent;
}
}
curve.KeyFrames[draggedTangent.keyframeRef.keyIdx] = keyframe;
curve.Apply();
OnCurveModified?.Invoke();
guiCurveDrawing.Rebuild();
}
}
}
}
else // Move frame marker
{
int frameIdx = guiTimeline.GetFrame(pointerPos);
if (frameIdx != -1)
{
SetMarkedFrame(frameIdx);
}
OnFrameSelected?.Invoke(frameIdx);
}
}
}