Unity UI Extensions

ResizePanel

A control that allows resizing of a parent panel by dragging a handle, maintaining aspect ratio and respecting min/max size constraints.

Contents

1 Overview

2 Properties

3 Methods

4 Usage

5 Video Demo

6 See also

7 Credits and Donation

8 External links

Overview

The ResizePanel control enables users to resize a parent panel by dragging a handle component. It automatically maintains the original aspect ratio and constrains resizing within specified minimum and maximum bounds (calculated as 10% to 1000% of the original size).

Properties

The properties of the ResizePanel control are as follows:

Property Description
Min Size Minimum size constraint for the panel (Vector2). Automatically set to 10% of original dimensions in Awake()
Max Size Maximum size constraint for the panel (Vector2). Automatically set to 1000% of original dimensions in Awake()

Methods

The ResizePanel control implements Unity’s IPointerDownHandler and IDragHandler interfaces but does not expose additional public methods.

Method Arguments Description
OnPointerDown PointerEventData Handles pointer down events to bring panel to front and record starting position
OnDrag PointerEventData Handles drag events to resize the parent panel while maintaining aspect ratio

Usage

To use the ResizePanel control:

  1. Add the component via “Add Component -> UI -> Extensions -> RescalePanels -> ResizePanel”
  2. Attach the component to a child GameObject of the panel you want to resize
  3. The parent RectTransform will be automatically detected and become resizable
  4. Min/Max size constraints are automatically calculated on Awake() as 10% and 1000% of the original panel size

Example code for manual configuration:

var resizePanel = resizeHandle.GetComponent<ResizePanel>();
resizePanel.minSize = new Vector2(100, 100);
resizePanel.maxSize = new Vector2(1000, 1000);

Video Demo

Video demonstration to be added

See also

Credits and Donation

Credits: .entity

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