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- using UnityEngine;
- using UnityEngine.UIElements;
- using UnityEditor.UIElements;
- using PositionType = UnityEngine.UIElements.Position;
- namespace UnityEditor.VFX.UI
- {
- class VFXColorField : ValueControl<Color>
- {
- VisualElement m_ColorDisplay;
- VisualElement m_AlphaDisplay;
- VisualElement m_NotAlphaDisplay;
- VisualElement m_AlphaContainer;
- VisualElement m_HDRLabel;
- VisualElement m_IndeterminateLabel;
- VisualElement m_Container;
- VisualElement CreateColorContainer()
- {
- m_Container = new VisualElement();
- m_Container.style.flexDirection = FlexDirection.Column;
- m_Container.style.alignItems = Align.Stretch;
- m_Container.style.flexGrow = 1f;
- m_Container.style.flexShrink = 1f;
- m_Container.AddToClassList("colorcontainer");
- m_ColorDisplay = new VisualElement();
- m_ColorDisplay.style.height = 10;
- m_ColorDisplay.AddToClassList("colordisplay");
- m_AlphaDisplay = new VisualElement();
- m_AlphaDisplay.style.height = 3;
- m_AlphaDisplay.style.backgroundColor = Color.white;
- m_AlphaDisplay.AddToClassList("alphadisplay");
- m_NotAlphaDisplay = new VisualElement();
- m_NotAlphaDisplay.style.height = 3;
- m_NotAlphaDisplay.style.backgroundColor = Color.black;
- m_NotAlphaDisplay.AddToClassList("notalphadisplay");
- m_AlphaContainer = new VisualElement();
- m_AlphaContainer.style.flexDirection = FlexDirection.Row;
- m_AlphaContainer.style.height = 3;
- m_ColorDisplay.AddManipulator(new Clickable(OnColorClick));
- m_AlphaDisplay.AddManipulator(new Clickable(OnColorClick));
- m_HDRLabel = new Label()
- {
- pickingMode = PickingMode.Ignore,
- text = "HDR"
- };
- m_IndeterminateLabel = new Label()
- {
- pickingMode = PickingMode.Ignore,
- name = "indeterminate",
- text = VFXControlConstants.indeterminateText
- };
- m_HDRLabel.style.unityTextAlign = TextAnchor.MiddleCenter;
- m_HDRLabel.style.position = PositionType.Absolute;
- m_HDRLabel.style.top = 0f;
- m_HDRLabel.style.bottom = 0f;
- m_HDRLabel.style.left = 0f;
- m_HDRLabel.style.right = 0f;
- m_IndeterminateLabel.style.unityTextAlign = TextAnchor.MiddleLeft;
- m_IndeterminateLabel.style.position = PositionType.Absolute;
- m_IndeterminateLabel.style.top = 0f;
- m_IndeterminateLabel.style.bottom = 0f;
- m_IndeterminateLabel.style.left = 0f;
- m_IndeterminateLabel.style.right = 0f;
- m_HDRLabel.AddToClassList("hdr");
- m_Container.Add(m_ColorDisplay);
- m_Container.Add(m_AlphaContainer);
- m_Container.Add(m_HDRLabel);
- m_Container.Add(m_IndeterminateLabel);
- m_AlphaContainer.Add(m_AlphaDisplay);
- m_AlphaContainer.Add(m_NotAlphaDisplay);
- return m_Container;
- }
- private bool m_ShowAlpha = true;
- private Color m_InitialColor;
- public bool showAlpha
- {
- get { return m_ShowAlpha; }
- set
- {
- if (m_ShowAlpha != value)
- {
- m_ShowAlpha = value;
- if (m_ShowAlpha)
- {
- m_Container.Add(m_AlphaContainer);
- }
- else
- {
- m_AlphaContainer.RemoveFromHierarchy();
- }
- }
- }
- }
- void OnColorClick()
- {
- if (enabledInHierarchy)
- ColorPicker.Show(OnColorChanged, m_Value, m_ShowAlpha, true);
- }
- VisualElement CreateEyeDropper()
- {
- Texture2D eyeDropperIcon = EditorGUIUtility.IconContent("EyeDropper.Large").image as Texture2D;
- var eyeDropper = new VisualElement();
- eyeDropper.style.backgroundImage = eyeDropperIcon;
- eyeDropper.style.width = 20;
- eyeDropper.style.height = 20;
- eyeDropper.RegisterCallback<MouseDownEvent>(OnEyeDropperStart);
- return eyeDropper;
- }
- IVisualElementScheduledItem m_EyeDropperScheduler;
- void OnEyeDropperStart(MouseDownEvent e)
- {
- if (EyeDropper.IsOpened)
- {
- return;
- }
- this.m_InitialColor = m_Value;
- EyeDropper.Start(OnGammaColorChanged);
- m_EyeDropperScheduler = this.schedule.Execute(OnEyeDropperMove).Every(10).StartingIn(10).Until(this.ShouldStopWatchingEyeDropper);
- }
- private bool ShouldStopWatchingEyeDropper()
- {
- if (EyeDropper.IsOpened)
- {
- return false;
- }
- if (EyeDropper.IsCancelled)
- {
- SetValue(m_InitialColor);
- }
- return true;
- }
- void OnEyeDropperMove(TimerState state)
- {
- Color pickerColor = EyeDropper.GetPickedColor();
- if (pickerColor != GetValue())
- {
- SetValue(pickerColor.linear);
- }
- }
- readonly VisualElement m_EyeDropper;
- public VFXColorField(string label) : base(label)
- {
- VisualElement container = CreateColorContainer();
- Add(container);
- m_EyeDropper = CreateEyeDropper();
- Add(m_EyeDropper);
- }
- public VFXColorField(Label existingLabel) : base(existingLabel)
- {
- VisualElement container = CreateColorContainer();
- Add(container);
- m_EyeDropper = CreateEyeDropper();
- Add(m_EyeDropper);
- }
- void OnGammaColorChanged(Color color)
- {
- OnColorChanged(color.linear);
- }
- void OnColorChanged(Color color)
- {
- SetValue(color);
- if (m_EyeDropperScheduler != null)
- {
- m_EyeDropperScheduler.Pause();
- m_EyeDropperScheduler = null;
- }
- if (OnValueChanged != null)
- OnValueChanged();
- }
- bool m_Indeterminate;
- public bool indeterminate
- {
- get { return m_Indeterminate; }
- set
- {
- m_Indeterminate = value;
- ValueToGUI(true);
- }
- }
- protected override void ValueToGUI(bool force)
- {
- if (indeterminate)
- {
- m_ColorDisplay.style.backgroundColor = VFXControlConstants.indeterminateTextColor;
- m_AlphaDisplay.style.flexGrow = 1f;
- m_NotAlphaDisplay.style.flexGrow = 0f;
- m_NotAlphaDisplay.style.flexShrink = 0f;
- m_HDRLabel.RemoveFromHierarchy();
- if (m_IndeterminateLabel.parent == null)
- m_Container.Add(m_IndeterminateLabel);
- }
- else
- {
- m_IndeterminateLabel.RemoveFromHierarchy();
- Color displayedColor = (new Color(m_Value.r, m_Value.g, m_Value.b, 1)).gamma;
- m_ColorDisplay.style.backgroundColor = displayedColor;
- m_AlphaDisplay.style.flexGrow = m_Value.a;
- m_AlphaDisplay.style.flexShrink = 0f;
- m_NotAlphaDisplay.style.flexGrow = 1 - m_Value.a;
- m_NotAlphaDisplay.style.flexShrink = 0f;
- bool hdr = m_Value.r > 1 || m_Value.g > 1 || m_Value.b > 1;
- if ((m_HDRLabel.parent != null) != hdr)
- {
- if (hdr)
- {
- if (m_HDRLabel.parent == null)
- m_Container.Add(m_HDRLabel);
- }
- else
- m_HDRLabel.RemoveFromHierarchy();
- }
- }
- }
- }
- }
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