Singularity/Library/PackageCache/com.unity.2d.animation@7.0.10/Editor/SkinningModule/IMGUI/SpriteMeshView.cs

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2024-05-06 14:45:45 -04:00
using UnityEngine;
namespace UnityEditor.U2D.Animation
{
internal class SpriteMeshView : ISpriteMeshView
{
readonly int m_VertexHashCode = "Vertex".GetHashCode();
readonly int m_EdgeHashCode = "Edge".GetHashCode();
const string kDeleteCommandName = "Delete";
const string kSoftDeleteCommandName = "SoftDelete";
static readonly Color kEdgeColor = Color.cyan;
static readonly Color kEdgeHoveredColor = Color.yellow;
static readonly Color kEdgeSelectedColor = Color.yellow;
const float kEdgeWidth = 2f;
const float kVertexRadius = 2.5f;
private class Styles
{
public readonly GUIStyle pointNormalStyle;
public readonly GUIStyle pointHoveredStyle;
public readonly GUIStyle pointSelectedStyle;
public Styles()
{
Texture2D pointNormal = ResourceLoader.Load<Texture2D>("SkinningModule/dotCyan.png");
Texture2D pointHovered = ResourceLoader.Load<Texture2D>("SkinningModule/dotYellow.png");
Texture2D pointSelected = ResourceLoader.Load<Texture2D>("SkinningModule/dotYellow.png");
pointNormalStyle = new GUIStyle();
pointNormalStyle.normal.background = pointNormal;
pointNormalStyle.fixedWidth = 8f;
pointNormalStyle.fixedHeight = 8f;
pointHoveredStyle = new GUIStyle();
pointHoveredStyle.normal.background = pointHovered;
pointHoveredStyle.fixedWidth = 10f;
pointHoveredStyle.fixedHeight = 10f;
pointSelectedStyle = new GUIStyle();
pointSelectedStyle.normal.background = pointSelected;
pointSelectedStyle.fixedWidth = 10f;
pointSelectedStyle.fixedHeight = 10f;
}
}
private Styles m_Styles;
private Styles styles
{
get
{
if (m_Styles == null)
m_Styles = new Styles();
return m_Styles;
}
}
int m_HoveredEdge = -1;
int m_HoveredEdgeControlID = -1;
int m_MoveEdgeControlID = -1;
int m_HoveredVertex = -1;
int m_PrevHoveredVertex = -1;
int m_HoveredVertexControlID = -1;
int m_MoveVertexControlID = -1;
Color m_TempColor;
SliderData m_HotSliderData = SliderData.zero;
MeshEditorAction m_PreviousActiveAction = MeshEditorAction.None;
private Vector2 m_MouseWorldPosition;
private float m_NearestVertexDistance;
private float m_NearestEdgeDistance;
private int m_NearestVertex = -1;
private int m_NearestEdge = -1;
public SpriteMeshViewMode mode { get; set; }
public ISelection<int> selection { get; set; }
public int defaultControlID { get; set; }
public Rect frame { get; set; }
private IGUIWrapper guiWrapper { get; set; }
public Vector2 mouseWorldPosition
{
get { return m_MouseWorldPosition; }
}
public int hoveredVertex
{
get { return m_HoveredVertex; }
}
public int hoveredEdge
{
get { return m_HoveredEdge; }
}
public int closestEdge
{
get { return m_NearestEdge; }
}
public SpriteMeshView(IGUIWrapper gw)
{
guiWrapper = gw;
}
public void CancelMode()
{
if (mode != SpriteMeshViewMode.EditGeometry)
{
if (guiWrapper.IsKeyDown(KeyCode.Escape) || guiWrapper.IsMouseDown(1))
{
mode = SpriteMeshViewMode.EditGeometry;
guiWrapper.UseCurrentEvent();
}
}
}
public void BeginLayout()
{
var vertexControlID = guiWrapper.GetControlID(m_VertexHashCode, FocusType.Passive);
var edgeControlID = guiWrapper.GetControlID(m_EdgeHashCode, FocusType.Passive);
if (guiWrapper.eventType == EventType.Layout || guiWrapper.eventType == EventType.MouseMove)
{
m_NearestVertexDistance = float.MaxValue;
m_NearestEdgeDistance = float.MaxValue;
m_NearestVertex = -1;
m_NearestEdge = -1;
m_MouseWorldPosition = guiWrapper.GUIToWorld(guiWrapper.mousePosition);
m_HoveredVertexControlID = vertexControlID;
m_HoveredEdgeControlID = edgeControlID;
m_PrevHoveredVertex = m_HoveredVertex;
m_HoveredVertex = -1;
m_HoveredEdge = -1;
if (guiWrapper.IsControlHot(0))
{
m_MoveVertexControlID = -1;
m_MoveEdgeControlID = -1;
}
}
}
public void EndLayout()
{
guiWrapper.LayoutControl(m_HoveredEdgeControlID, m_NearestEdgeDistance);
guiWrapper.LayoutControl(m_HoveredVertexControlID, m_NearestVertexDistance);
if(guiWrapper.IsControlNearest(m_HoveredVertexControlID))
m_HoveredVertex = m_NearestVertex;
if (guiWrapper.IsControlNearest(m_HoveredEdgeControlID))
m_HoveredEdge = m_NearestEdge;
if (guiWrapper.eventType == EventType.Layout || guiWrapper.eventType == EventType.MouseMove)
if (m_PrevHoveredVertex != m_HoveredVertex)
guiWrapper.Repaint();
}
public void LayoutVertex(Vector2 position, int index)
{
if (guiWrapper.eventType == EventType.Layout)
{
var distance = guiWrapper.DistanceToCircle(position, kVertexRadius);
if (distance <= m_NearestVertexDistance)
{
m_NearestVertexDistance = distance;
m_NearestVertex = index;
}
}
}
public void LayoutEdge(Vector2 startPosition, Vector2 endPosition, int index)
{
if (guiWrapper.eventType == EventType.Layout)
{
var distance = guiWrapper.DistanceToSegment(startPosition, endPosition);
if (distance < m_NearestEdgeDistance)
{
m_NearestEdgeDistance = distance;
m_NearestEdge = index;
}
}
}
public bool DoCreateVertex()
{
if (mode == SpriteMeshViewMode.CreateVertex && IsActionActive(MeshEditorAction.CreateVertex))
ConsumeMouseMoveEvents();
if (IsActionTriggered(MeshEditorAction.CreateVertex))
{
guiWrapper.SetGuiChanged(true);
guiWrapper.UseCurrentEvent();
return true;
}
return false;
}
public bool DoSelectVertex(out bool additive)
{
additive = false;
if (IsActionTriggered(MeshEditorAction.SelectVertex))
{
additive = guiWrapper.isActionKeyDown;
guiWrapper.Repaint();
return true;
}
return false;
}
public bool DoMoveVertex(out Vector2 delta)
{
delta = Vector2.zero;
if (IsActionTriggered(MeshEditorAction.MoveVertex))
{
m_MoveVertexControlID = m_HoveredVertexControlID;
m_HotSliderData.position = mouseWorldPosition;
}
Vector3 newPosition;
if (guiWrapper.DoSlider(m_MoveVertexControlID, m_HotSliderData, out newPosition))
{
delta = newPosition - m_HotSliderData.position;
m_HotSliderData.position = newPosition;
return true;
}
return false;
}
public bool DoMoveEdge(out Vector2 delta)
{
delta = Vector2.zero;
if (IsActionTriggered(MeshEditorAction.MoveEdge))
{
m_MoveEdgeControlID = m_HoveredEdgeControlID;
m_HotSliderData.position = mouseWorldPosition;
}
Vector3 newPosition;
if (guiWrapper.DoSlider(m_MoveEdgeControlID, m_HotSliderData, out newPosition))
{
delta = newPosition - m_HotSliderData.position;
m_HotSliderData.position = newPosition;
return true;
}
return false;
}
public bool DoCreateEdge()
{
if (IsActionActive(MeshEditorAction.CreateEdge))
ConsumeMouseMoveEvents();
if (IsActionTriggered(MeshEditorAction.CreateEdge))
{
guiWrapper.SetGuiChanged(true);
guiWrapper.UseCurrentEvent();
return true;
}
return false;
}
public bool DoSplitEdge()
{
if (IsActionActive(MeshEditorAction.SplitEdge))
ConsumeMouseMoveEvents();
if (IsActionTriggered(MeshEditorAction.SplitEdge))
{
guiWrapper.UseCurrentEvent();
guiWrapper.SetGuiChanged(true);
return true;
}
return false;
}
public bool DoSelectEdge(out bool additive)
{
additive = false;
if (IsActionTriggered(MeshEditorAction.SelectEdge))
{
additive = guiWrapper.isActionKeyDown;
guiWrapper.Repaint();
return true;
}
return false;
}
public bool DoRemove()
{
if (IsActionTriggered(MeshEditorAction.Remove))
{
guiWrapper.UseCurrentEvent();
guiWrapper.SetGuiChanged(true);
return true;
}
return false;
}
public void DrawVertex(Vector2 position)
{
DrawingUtility.DrawGUIStyleCap(0, position, Quaternion.identity, 1f, styles.pointNormalStyle);
}
public void DrawVertexHovered(Vector2 position)
{
DrawingUtility.DrawGUIStyleCap(0, position, Quaternion.identity, 1f, styles.pointHoveredStyle);
}
public void DrawVertexSelected(Vector2 position)
{
DrawingUtility.DrawGUIStyleCap(0, position, Quaternion.identity, 1f, styles.pointSelectedStyle);
}
public void BeginDrawEdges()
{
if (guiWrapper.eventType != EventType.Repaint)
return;
DrawingUtility.BeginSolidLines();
m_TempColor = Handles.color;
}
public void EndDrawEdges()
{
if (guiWrapper.eventType != EventType.Repaint)
return;
DrawingUtility.EndLines();
Handles.color = m_TempColor;
}
public void DrawEdge(Vector2 startPosition, Vector2 endPosition)
{
DrawEdge(startPosition, endPosition, kEdgeColor);
}
public void DrawEdgeHovered(Vector2 startPosition, Vector2 endPosition)
{
DrawEdge(startPosition, endPosition, kEdgeHoveredColor);
}
public void DrawEdgeSelected(Vector2 startPosition, Vector2 endPosition)
{
DrawEdge(startPosition, endPosition, kEdgeSelectedColor);
}
public bool IsActionActive(MeshEditorAction action)
{
if (guiWrapper.isAltDown || !guiWrapper.IsControlHot(0))
return false;
var canCreateEdge = CanCreateEdge();
var canSplitEdge = CanSplitEdge();
if (action == MeshEditorAction.None)
return guiWrapper.IsControlNearest(defaultControlID);
if (action == MeshEditorAction.CreateVertex)
{
if(!frame.Contains(mouseWorldPosition))
return false;
if (mode == SpriteMeshViewMode.EditGeometry)
return guiWrapper.IsControlNearest(defaultControlID);
if (mode == SpriteMeshViewMode.CreateVertex)
return hoveredVertex == -1;
}
if (action == MeshEditorAction.MoveVertex)
return guiWrapper.IsControlNearest(m_HoveredVertexControlID);
if (action == MeshEditorAction.CreateEdge)
return canCreateEdge;
if (action == MeshEditorAction.SplitEdge)
return canSplitEdge;
if (action == MeshEditorAction.MoveEdge)
return guiWrapper.IsControlNearest(m_HoveredEdgeControlID);
if (action == MeshEditorAction.SelectVertex)
return guiWrapper.IsControlNearest(m_HoveredVertexControlID);
if (action == MeshEditorAction.SelectEdge)
return mode == SpriteMeshViewMode.EditGeometry &&
guiWrapper.IsControlNearest(m_HoveredEdgeControlID) &&
!canCreateEdge && !canSplitEdge;
if (action == MeshEditorAction.Remove)
return true;
return false;
}
public bool IsActionHot(MeshEditorAction action)
{
if (action == MeshEditorAction.None)
return guiWrapper.IsControlHot(0);
if (action == MeshEditorAction.MoveVertex)
return guiWrapper.IsControlHot(m_HoveredVertexControlID);
if (action == MeshEditorAction.MoveEdge)
return guiWrapper.IsControlHot(m_HoveredEdgeControlID);
return false;
}
public bool IsActionTriggered(MeshEditorAction action)
{
if (!IsActionActive(action))
return false;
if (action == MeshEditorAction.CreateVertex)
{
if (mode == SpriteMeshViewMode.EditGeometry)
return guiWrapper.IsMouseDown(0) && guiWrapper.clickCount == 2;
}
if (action == MeshEditorAction.Remove)
{
if ((guiWrapper.eventType == EventType.ValidateCommand || guiWrapper.eventType == EventType.ExecuteCommand)
&& (guiWrapper.commandName == kSoftDeleteCommandName || guiWrapper.commandName == kDeleteCommandName))
{
if (guiWrapper.eventType == EventType.ExecuteCommand)
return true;
guiWrapper.UseCurrentEvent();
}
return false;
}
if(action != MeshEditorAction.None)
return guiWrapper.IsMouseDown(0);
return false;
}
public Vector2 WorldToScreen(Vector2 position)
{
return HandleUtility.WorldToGUIPoint(position);
}
private void ConsumeMouseMoveEvents()
{
if (guiWrapper.eventType == EventType.MouseMove || (guiWrapper.eventType == EventType.MouseDrag && guiWrapper.mouseButton == 0))
guiWrapper.UseCurrentEvent();
}
private bool CanCreateEdge()
{
if(!frame.Contains(mouseWorldPosition) || !(guiWrapper.IsControlNearest(defaultControlID) || guiWrapper.IsControlNearest(m_HoveredVertexControlID) || guiWrapper.IsControlNearest(m_HoveredEdgeControlID)))
return false;
if (mode == SpriteMeshViewMode.EditGeometry)
return guiWrapper.isShiftDown && selection.Count == 1 && !selection.Contains(hoveredVertex);
if (mode == SpriteMeshViewMode.CreateEdge)
return selection.Count == 1 && !selection.Contains(hoveredVertex);
return false;
}
private bool CanSplitEdge()
{
if(!frame.Contains(mouseWorldPosition) || !(guiWrapper.IsControlNearest(defaultControlID) || guiWrapper.IsControlNearest(m_HoveredEdgeControlID)))
return false;
if (mode == SpriteMeshViewMode.EditGeometry)
return guiWrapper.isShiftDown && m_NearestEdge != -1 && hoveredVertex == -1 && selection.Count == 0;
if (mode == SpriteMeshViewMode.SplitEdge)
return m_NearestEdge != -1 && hoveredVertex == -1;
return false;
}
private void DrawEdge(Vector2 startPosition, Vector2 endPosition, Color color)
{
if (guiWrapper.eventType != EventType.Repaint)
return;
Handles.color = color;
float width = kEdgeWidth / Handles.matrix.m00;
DrawingUtility.DrawSolidLine(width, startPosition, endPosition);
}
public void DoRepaint()
{
if(guiWrapper.eventType != EventType.Layout)
return;
var action = MeshEditorAction.None;
if(IsActionActive(MeshEditorAction.CreateVertex))
action = MeshEditorAction.CreateVertex;
else if(IsActionActive(MeshEditorAction.CreateEdge))
action = MeshEditorAction.CreateEdge;
else if(IsActionActive(MeshEditorAction.SplitEdge))
action = MeshEditorAction.SplitEdge;
if(m_PreviousActiveAction != action)
{
m_PreviousActiveAction = action;
guiWrapper.Repaint();
}
}
public bool CanRepaint()
{
return guiWrapper.eventType == EventType.Repaint;
}
public bool CanLayout()
{
return guiWrapper.eventType == EventType.Layout;
}
}
}