123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320 |
- using System;
- using UnityEngine;
- using UnityEngine.UIElements;
- using UnityEditor.UIElements;
- using System.Collections.Generic;
- using System.Linq;
- using Action = System.Action;
- namespace UnityEditor.VFX.UI
- {
- abstract class VFXBaseSliderField<T> : VisualElement, INotifyValueChanged<T>
- {
- protected Slider m_Slider;
- protected INotifyValueChanged<T> m_Field;
- class StartFinishSliderManipulator : Manipulator
- {
- VFXBaseSliderField<T> m_Slider;
- bool m_InDrag;
- protected override void RegisterCallbacksOnTarget()
- {
- m_Slider = target.GetFirstOfType<VFXBaseSliderField<T>>();
- target.RegisterCallback<MouseDownEvent>(OnMouseDown, TrickleDown.TrickleDown);
- target.RegisterCallback<MouseUpEvent>(OnMouseUp, TrickleDown.TrickleDown);
- }
- protected override void UnregisterCallbacksFromTarget()
- {
- target.UnregisterCallback<MouseDownEvent>(OnMouseDown, TrickleDown.TrickleDown);
- target.UnregisterCallback<MouseUpEvent>(OnMouseUp, TrickleDown.TrickleDown);
- }
- void OnMouseDown(MouseDownEvent e)
- {
- target.RegisterCallback<MouseMoveEvent>(OnMouseMove, TrickleDown.TrickleDown);
- }
- void OnMouseMove(MouseMoveEvent e)
- {
- if (!m_InDrag)
- {
- m_InDrag = true;
- m_Slider.ValueDragStarted();
- target.UnregisterCallback<MouseMoveEvent>(OnMouseMove, TrickleDown.TrickleDown); //we care only about the first drag event
- }
- }
- void OnMouseUp(MouseUpEvent e)
- {
- if (m_InDrag)
- m_Slider.ValueDragFinished();
- else
- target.UnregisterCallback<MouseMoveEvent>(OnMouseMove, TrickleDown.TrickleDown);
- m_InDrag = false;
- }
- }
- protected void ValueDragFinished()
- {
- if (onValueDragFinished != null)
- onValueDragFinished();
- }
- protected void ValueDragStarted()
- {
- if (onValueDragStarted != null)
- onValueDragStarted();
- }
- public Action onValueDragFinished;
- public Action onValueDragStarted;
- public VFXBaseSliderField()
- {
- AddToClassList("sliderField");
- }
- protected void RegisterCallBack()
- {
- (m_Field as VisualElement).RegisterCallback<BlurEvent>(OnFocusLost);
- m_Slider.Children().First().AddManipulator(new StartFinishSliderManipulator());
- }
- void OnFocusLost(BlurEvent e)
- {
- //forward the focus lost event
- using (BlurEvent newE = BlurEvent.GetPooled(this, e.relatedTarget, e.direction, panel.focusController))
- {
- SendEvent(newE);
- }
- e.StopPropagation();
- }
- public T m_Value;
- public T value
- {
- get
- {
- return m_Value;
- }
- set
- {
- SetValueAndNotify(value);
- }
- }
- protected abstract float ValueToFloat(T value);
- private Vector2 m_Range;
- public Vector2 range
- {
- get
- {
- return m_Range;
- }
- set
- {
- m_Range = value;
- m_IgnoreNotification = true;
- if (m_Slider.lowValue != m_Range.x || m_Slider.highValue != m_Range.y)
- {
- m_Slider.lowValue = m_Range.x;
- m_Slider.highValue = m_Range.y;
- if (m_Slider.value < m_Slider.lowValue || m_Slider.value > m_Slider.highValue)
- {
- m_Slider.value = m_Slider.lowValue;
- }
- }
- m_IgnoreNotification = false;
- }
- }
- protected bool m_IgnoreNotification;
- public abstract bool hasFocus { get; }
- public void OnValueChanged(EventCallback<ChangeEvent<T>> callback)
- {
- RegisterCallback(callback);
- }
- public void RemoveOnValueChanged(EventCallback<ChangeEvent<T>> callback)
- {
- UnregisterCallback(callback);
- }
- public void SetValueAndNotify(T newValue)
- {
- if (!EqualityComparer<T>.Default.Equals(value, newValue))
- {
- using (ChangeEvent<T> evt = ChangeEvent<T>.GetPooled(value, newValue))
- {
- evt.target = this;
- SetValueWithoutNotify(newValue);
- SendEvent(evt);
- }
- }
- }
- public void SetValueWithoutNotify(T newValue)
- {
- m_IgnoreNotification = true;
- m_Value = newValue;
- tooltip = newValue.ToString();
- if (!hasFocus)
- m_Field.value = newValue;
- m_Slider.value = ValueToFloat(value);
- m_IgnoreNotification = false;
- }
- protected void ValueChanged(ChangeEvent<T> e)
- {
- e.StopPropagation();
- if (!m_IgnoreNotification)
- SetValueAndNotify(e.newValue);
- }
- }
- class VFXFloatSliderField : VFXBaseSliderField<float>
- {
- public VFXFloatSliderField()
- {
- m_Slider = new Slider(0, 1, SliderDirection.Horizontal);
- m_Slider.AddToClassList("textfield");
- m_Slider.RegisterValueChangedCallback(evt => ValueChanged(evt.newValue));
- m_FloatField = new FloatField();
- m_FloatField.RegisterValueChangedCallback(ValueChanged);
- m_FloatField.name = "Field";
- m_Field = m_FloatField;
- m_IndeterminateLabel = new Label()
- {
- name = "indeterminate",
- text = VFXControlConstants.indeterminateText
- };
- m_IndeterminateLabel.SetEnabled(false);
- Add(m_Slider);
- Add(m_FloatField);
- RegisterCallBack();
- }
- VisualElement m_IndeterminateLabel;
- FloatField m_FloatField;
- public override bool hasFocus
- {
- get { return ((FloatField)m_Field).HasFocus() || (panel != null && panel.focusController.focusedElement == m_Field as VisualElement); }
- }
- protected override float ValueToFloat(float value)
- {
- return value;
- }
- void ValueChanged(float newValue)
- {
- if (!m_IgnoreNotification)
- SetValueAndNotify(newValue);
- }
- public bool indeterminate
- {
- get { return m_FloatField.parent == null; }
- set
- {
- if (indeterminate != value)
- {
- if (value)
- {
- m_FloatField.RemoveFromHierarchy();
- Add(m_IndeterminateLabel);
- }
- else
- {
- m_IndeterminateLabel.RemoveFromHierarchy();
- Add(m_FloatField);
- }
- m_Slider.SetEnabled(!value);
- }
- }
- }
- }
- class VFXIntSliderField : VFXBaseSliderField<int>
- {
- public VFXIntSliderField()
- {
- m_Slider = new Slider(0, 1, SliderDirection.Horizontal);
- m_Slider.AddToClassList("textfield");
- m_Slider.RegisterValueChangedCallback(evt => ValueChanged(evt.newValue));
- var integerField = new IntegerField();
- integerField.RegisterValueChangedCallback(ValueChanged);
- integerField.name = "Field";
- m_Field = integerField;
- Add(m_Slider);
- Add(integerField);
- RegisterCallBack();
- }
- public override bool hasFocus
- {
- get { return ((IntegerField)m_Field).HasFocus() || (panel != null && panel.focusController.focusedElement == m_Field as VisualElement); }
- }
- protected override float ValueToFloat(int value)
- {
- return (float)value;
- }
- void ValueChanged(float newValue)
- {
- SetValueAndNotify((int)newValue);
- }
- }
- class VFXLongSliderField : VFXBaseSliderField<long>
- {
- public VFXLongSliderField()
- {
- m_Slider = new Slider(0, 1, SliderDirection.Horizontal);
- m_Slider.AddToClassList("textfield");
- m_Slider.RegisterValueChangedCallback(evt => ValueChanged(evt.newValue));
- var integerField = new LongField();
- integerField.RegisterValueChangedCallback(ValueChanged);
- integerField.name = "Field";
- m_Field = integerField;
- Add(m_Slider);
- Add(integerField);
- RegisterCallBack();
- }
- public override bool hasFocus
- {
- get { return ((LongField)m_Field).HasFocus() || (panel != null && panel.focusController.focusedElement == m_Field as VisualElement); }
- }
- protected override float ValueToFloat(long value)
- {
- return (float)value;
- }
- void ValueChanged(float newValue)
- {
- SetValueAndNotify((long)newValue);
- }
- }
- }
|