public ResizeSideHandle(VisualElement resizeTarget, ResizeHandleAnchor anchor, string[] styleClasses)
{
m_ResizeTarget = resizeTarget;
foreach (string styleClass in styleClasses)
{
AddToClassList(styleClass);
}
m_HandleAnchor = anchor;
ResizeDirection resizeDirection;
bool moveWhileResizeHorizontal = anchor == ResizeHandleAnchor.TopLeft || anchor == ResizeHandleAnchor.BottomLeft || anchor == ResizeHandleAnchor.Left;
bool moveWhileResizeVertical = anchor == ResizeHandleAnchor.TopLeft || anchor == ResizeHandleAnchor.TopRight || anchor == ResizeHandleAnchor.Top;
if (anchor == ResizeHandleAnchor.Left || anchor == ResizeHandleAnchor.Right)
{
resizeDirection = ResizeDirection.Horizontal;
}
else if (anchor == ResizeHandleAnchor.Top || anchor == ResizeHandleAnchor.Bottom)
{
resizeDirection = ResizeDirection.Vertical;
}
else
{
resizeDirection = ResizeDirection.Any;
}
this.AddManipulator(new Draggable(mouseDelta => OnResize(mouseDelta, resizeDirection, moveWhileResizeHorizontal, moveWhileResizeVertical)));
}
public ResizeSideHandle(VisualElement resizeTarget, VisualElement container, ResizeHandleAnchor anchor)
{
m_WindowDockingLayout = new WindowDockingLayout();
m_ResizeTarget = resizeTarget;
m_Container = container;
AddToClassList("resize");
switch (anchor)
{
case ResizeHandleAnchor.Top:
{
AddToClassList("vertical");
AddToClassList("top");
RegisterCallback <MouseMoveEvent>(HandleResizeFromTop);
break;
}
case ResizeHandleAnchor.TopRight:
{
AddToClassList("diagonal");
AddToClassList("top-right");
RegisterCallback <MouseMoveEvent>(HandleResizeFromTopRight);
break;
}
case ResizeHandleAnchor.Right:
{
AddToClassList("horizontal");
AddToClassList("right");
RegisterCallback <MouseMoveEvent>(HandleResizeFromRight);
break;
}
case ResizeHandleAnchor.BottomRight:
{
AddToClassList("diagonal");
AddToClassList("bottom-right");
RegisterCallback <MouseMoveEvent>(HandleResizeFromBottomRight);
break;
}
case ResizeHandleAnchor.Bottom:
{
AddToClassList("vertical");
AddToClassList("bottom");
RegisterCallback <MouseMoveEvent>(HandleResizeFromBottom);
break;
}
case ResizeHandleAnchor.BottomLeft:
{
AddToClassList("diagonal");
AddToClassList("bottom-left");
RegisterCallback <MouseMoveEvent>(HandleResizeFromBottomLeft);
break;
}
case ResizeHandleAnchor.Left:
{
AddToClassList("horizontal");
AddToClassList("left");
RegisterCallback <MouseMoveEvent>(HandleResizeFromLeft);
break;
}
case ResizeHandleAnchor.TopLeft:
{
AddToClassList("diagonal");
AddToClassList("top-left");
RegisterCallback <MouseMoveEvent>(HandleResizeFromTopLeft);
break;
}
}
RegisterCallback <MouseDownEvent>(HandleMouseDown);
RegisterCallback <MouseUpEvent>(HandleDraggableMouseUp);
m_ResizeTarget.RegisterCallback <GeometryChangedEvent>(InitialLayoutSetup);
}
public ResizeSideHandle(VisualElement resizeTarget, ResizeHandleAnchor anchor)
{
m_ResizeTarget = resizeTarget;
AddToClassList("resize");
switch (anchor)
{
case ResizeHandleAnchor.Top:
{
AddToClassList("vertical");
AddToClassList("top");
break;
}
case ResizeHandleAnchor.TopRight:
{
AddToClassList("diagonal");
AddToClassList("top-right");
break;
}
case ResizeHandleAnchor.Right:
{
AddToClassList("horizontal");
AddToClassList("right");
break;
}
case ResizeHandleAnchor.BottomRight:
{
AddToClassList("diagonal");
AddToClassList("bottom-right");
break;
}
case ResizeHandleAnchor.Bottom:
{
AddToClassList("vertical");
AddToClassList("bottom");
break;
}
case ResizeHandleAnchor.BottomLeft:
{
AddToClassList("diagonal");
AddToClassList("bottom-left");
break;
}
case ResizeHandleAnchor.Left:
{
AddToClassList("horizontal");
AddToClassList("left");
break;
}
case ResizeHandleAnchor.TopLeft:
{
AddToClassList("diagonal");
AddToClassList("top-left");
break;
}
}
ResizeDirection resizeDirection;
if (anchor == ResizeHandleAnchor.Left || anchor == ResizeHandleAnchor.Right)
{
resizeDirection = ResizeDirection.Horizontal;
}
else if (anchor == ResizeHandleAnchor.Top || anchor == ResizeHandleAnchor.Bottom)
{
resizeDirection = ResizeDirection.Vertical;
}
else
{
resizeDirection = ResizeDirection.Any;
}
bool moveWhileResizeHorizontal = anchor == ResizeHandleAnchor.TopLeft || anchor == ResizeHandleAnchor.BottomLeft || anchor == ResizeHandleAnchor.Left;
bool moveWhileResizeVertical = anchor == ResizeHandleAnchor.TopLeft || anchor == ResizeHandleAnchor.TopRight || anchor == ResizeHandleAnchor.Top;
this.AddManipulator(new Draggable(mouseDelta => OnResize(mouseDelta, resizeDirection, moveWhileResizeHorizontal, moveWhileResizeVertical, anchor)));
RegisterCallback <MouseUpEvent>(HandleDraggableMouseUp);
}
void OnResize(Vector2 resizeDelta, ResizeDirection direction, bool moveWhileResizeHorizontal, bool moveWhileresizeVertical, ResizeHandleAnchor anchor)
{
Vector2 normalizedResizeDelta = resizeDelta / 2f;
Vector2 minSize = new Vector2(60f, 60f);
if (!Mathf.Approximately(m_ResizeTarget.style.minWidth.value, 0f))
{
minSize.x = m_ResizeTarget.style.minWidth;
}
if (!Mathf.Approximately(m_ResizeTarget.style.minHeight.value, 0f))
{
minSize.y = m_ResizeTarget.style.minHeight.value;
}
if (direction == ResizeDirection.Vertical)
{
normalizedResizeDelta.x = 0f;
}
else if (direction == ResizeDirection.Horizontal)
{
normalizedResizeDelta.y = 0f;
}
Rect newLayout = m_ResizeTarget.layout;
if (anchor == ResizeHandleAnchor.Left || anchor == ResizeHandleAnchor.TopLeft || anchor == ResizeHandleAnchor.BottomLeft)
{
newLayout.xMin = Mathf.Min(newLayout.xMin + normalizedResizeDelta.x, newLayout.xMax - minSize.x);
}
else
{
newLayout.xMax = Mathf.Max(newLayout.xMax + normalizedResizeDelta.x, newLayout.xMin + minSize.x);
}
if (anchor == ResizeHandleAnchor.Top || anchor == ResizeHandleAnchor.TopLeft || anchor == ResizeHandleAnchor.TopRight)
{
newLayout.yMin = Mathf.Min(newLayout.yMin + normalizedResizeDelta.y, newLayout.yMax - minSize.y);
}
else
{
newLayout.yMax = Mathf.Max(newLayout.yMax + normalizedResizeDelta.y, newLayout.yMin + minSize.y);
}
if (stayWithinParentBounds)
{
newLayout.xMin = Mathf.Max(newLayout.xMin, 0f);
newLayout.yMin = Mathf.Max(newLayout.yMin, 0f);
newLayout.xMax = Mathf.Min(newLayout.xMax, m_ResizeTarget.parent.layout.width);
newLayout.yMax = Mathf.Min(newLayout.yMax, m_ResizeTarget.parent.layout.height);
}
m_ResizeTarget.layout = newLayout;
}