public void Drag(Vector2 delta, Vector2 constraint)
{
dragPosition.position += delta;
var lockedPosition = dragPosition;
if (constraint.x == 0)
{
lockedPosition.x = dragLockOrigin.x;
}
if (constraint.y == 0)
{
lockedPosition.y = dragLockOrigin.y;
}
if (snapToGrid)
{
position = GraphGUI.SnapToGrid(lockedPosition, canResizeHorizontal && canResizeVertical);
}
else
{
position = lockedPosition.PixelPerfect();
}
Reposition();
}
private void HandleResizing()
{
if (e.IsMouseDrag(MouseButton.Left) && !isResizing && canStartResize)
{
if (resizeLeftArea.Contains(mousePosition))
{
isResizingXMin = true;
xMinResizeOffset = mousePosition.x - position.xMin;
}
if (resizeRightArea.Contains(mousePosition))
{
isResizingXMax = true;
xMaxResizeOffset = mousePosition.x - position.xMax;
}
if (resizeTopArea.Contains(mousePosition))
{
isResizingYMin = true;
yMinResizeOffset = mousePosition.y - position.yMin;
}
if (resizeBottomArea.Contains(mousePosition))
{
isResizingYMax = true;
yMaxResizeOffset = mousePosition.y - position.yMax;
}
if (resizeTopLeftArea.Contains(mousePosition))
{
isResizingXMin = true;
isResizingYMin = true;
xMinResizeOffset = mousePosition.x - position.xMin;
yMinResizeOffset = mousePosition.y - position.yMin;
}
if (resizeTopRightArea.Contains(mousePosition))
{
isResizingXMax = true;
isResizingYMin = true;
xMaxResizeOffset = mousePosition.x - position.xMax;
yMinResizeOffset = mousePosition.y - position.yMin;
}
if (resizeBottomLeftArea.Contains(mousePosition))
{
isResizingXMin = true;
isResizingYMax = true;
xMinResizeOffset = mousePosition.x - position.xMin;
yMaxResizeOffset = mousePosition.y - position.yMax;
}
if (resizeBottomRightArea.Contains(mousePosition))
{
isResizingXMax = true;
isResizingYMax = true;
xMaxResizeOffset = mousePosition.x - position.xMax;
yMaxResizeOffset = mousePosition.y - position.yMax;
}
e.Use();
}
else if (e.IsMouseDrag(MouseButton.Left) && isResizing)
{
var resizedPosition = position;
if (isResizingXMin)
{
resizedPosition.xMin = Mathf.Min(position.xMax - minResizeSize.x, mousePosition.x - xMinResizeOffset);
if (snapToGrid)
{
resizedPosition.xMin = GraphGUI.SnapToGrid(resizedPosition.xMin);
}
}
if (isResizingXMax)
{
resizedPosition.xMax = Mathf.Max(position.xMin + minResizeSize.x, mousePosition.x - xMaxResizeOffset);
if (snapToGrid)
{
resizedPosition.xMax = GraphGUI.SnapToGrid(resizedPosition.xMax);
}
}
if (isResizingYMin)
{
resizedPosition.yMin = Mathf.Min(position.yMax - minResizeSize.y, mousePosition.y - yMinResizeOffset);
if (snapToGrid)
{
resizedPosition.yMin = GraphGUI.SnapToGrid(resizedPosition.yMin);
}
}
if (isResizingYMax)
{
resizedPosition.yMax = Mathf.Max(position.yMin + minResizeSize.y, mousePosition.y - yMaxResizeOffset);
if (snapToGrid)
{
resizedPosition.yMax = GraphGUI.SnapToGrid(resizedPosition.yMax);
}
}
resizedPosition.width = Mathf.Clamp(resizedPosition.width, minResizeSize.x, maxResizeSize.x);
resizedPosition.height = Mathf.Clamp(resizedPosition.height, minResizeSize.y, maxResizeSize.y);
UndoUtility.RecordEditedObject("Resize Graph Element");
position = resizedPosition;
Reposition();
e.Use();
}
else if (e.IsMouseUp(MouseButton.Left) && isResizing)
{
isResizingXMin = false;
isResizingXMax = false;
isResizingYMin = false;
isResizingYMax = false;
e.Use();
}
}
