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API > API/Runtime > API/Runtime/Slate > API/Runtime/Slate/Framework > API/Runtime/Slate/Framework/Layout
References
| Module | Slate |
| Header | /Engine/Source/Runtime/Slate/Public/Framework/Layout/ScrollyZoomy.h |
| Include | #include "Framework/Layout/ScrollyZoomy.h" |
Syntax
class FScrollyZoomy
Remarks
Utility class that adds scrolling and zooming functionality to a widget.
Derived your widget class from IScrollableZoomable, then embed an instance of FScrollyZoomy as a widget member variable, and call this class's event handlers from your own widget's event handler callbacks.
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
FScrollyZoomy
(
const bool InUseInertialScrolling |
Create and initialize a new instance. |
Functions
| Type | Name | Description | |
|---|---|---|---|
  |
UE::Slate::FDeprecateVector2DResult | Get the position of the software cursor (when NeedsSoftwareCursor is true). | |
  |
bool | Whether the user is actively scrolling. | |
  |
bool | Whether a software cursor should be rendered. | |
  |
FCursorReply | Call this from your widget's OnCursorQuery function. | |
 |
FReply | OnMouseButtonDown
(
const FPointerEvent& MouseEvent |
Should be called when a mouse button is pressed. |
 |
FReply | OnMouseButtonUp
(
const TSharedRef< SWidget > MyWidget, |
Should be called when a mouse button is released. |
 |
void | OnMouseLeave
(
const TSharedRef< SWidget > MyWidget, |
Should be called from your widget's OnMouseLeave override. |
 |
FReply | OnMouseMove
(
const TSharedRef< SWidget > MyWidget, |
Should be called when a mouse move event occurs. |
 |
FReply | OnMouseWheel
(
const FPointerEvent& MouseEvent, |
Should be called by your widget when the mouse wheel is used |
  |
int32 | PaintSoftwareCursorIfNeeded
(
const FGeometry& AllottedGeometry, |
Call this from your widget's OnPaint to paint a software cursor, if needed |
 |
void | Tick
(
const float DeltaTime, |
Should be called every frame to update simulation state. |