65 lines
1.9 KiB
C#
65 lines
1.9 KiB
C#
|
using UnityEditor;
|
|||
|
|
using UnityEngine.UIElements;
|
|||
|
|
|
|||
|
|
namespace Unity.PlasticSCM.Editor.UI.UIElements
|
|||
|
|
{
|
|||
|
|
internal class LoadingSpinner : VisualElement
|
|||
|
|
{
|
|||
|
|
internal LoadingSpinner()
|
|||
|
|
{
|
|||
|
|
// add child elements to set up centered spinner rotation
|
|||
|
|
mSpinner = new VisualElement();
|
|||
|
|
Add(mSpinner);
|
|||
|
|
|
|||
|
|
mSpinner.style.backgroundImage = Images.GetImage(Images.Name.Loading);
|
|||
|
|
mSpinner.style.position = Position.Absolute;
|
|||
|
|
mSpinner.style.width = 16;
|
|||
|
|
mSpinner.style.height = 16;
|
|||
|
|
mSpinner.style.left = -8;
|
|||
|
|
mSpinner.style.top = -8;
|
|||
|
|
|
|||
|
|
style.position = Position.Relative;
|
|||
|
|
style.width = 16;
|
|||
|
|
style.height = 16;
|
|||
|
|
style.left = 8;
|
|||
|
|
style.top = 8;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
internal void Start()
|
|||
|
|
{
|
|||
|
|
if (mRotationEvent != null)
|
|||
|
|
return;
|
|||
|
|
|
|||
|
|
mRotationEvent = mSpinner.schedule.Execute(UpdateProgress).Every(ROTATION_REFRESH_RATE);
|
|||
|
|
|
|||
|
|
mStartTime = EditorApplication.timeSinceStartup;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
internal void Stop()
|
|||
|
|
{
|
|||
|
|
if (mRotationEvent == null)
|
|||
|
|
return;
|
|||
|
|
|
|||
|
|
mRotationEvent.Pause();
|
|||
|
|
mRotationEvent = null;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void UpdateProgress()
|
|||
|
|
{
|
|||
|
|
double elapsedTime = EditorApplication.timeSinceStartup - mStartTime;
|
|||
|
|
int rotation = (int)(ROTATION_SPEED * elapsedTime) % 360;
|
|||
|
|
|
|||
|
|
mSpinnerStyleRotate.value = new Rotate(rotation);
|
|||
|
|
mSpinner.style.rotate = mSpinnerStyleRotate;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
double mStartTime;
|
|||
|
|
VisualElement mSpinner;
|
|||
|
|
IVisualElementScheduledItem mRotationEvent;
|
|||
|
|
StyleRotate mSpinnerStyleRotate;
|
|||
|
|
|
|||
|
|
const int ROTATION_SPEED = 360; // Euler degrees per second
|
|||
|
|
const int ROTATION_REFRESH_RATE = 32; // (ms) roughly 30 FPS
|
|||
|
|
}
|
|||
|
|
}
|