forked from BilalY/Rasagar
361 lines
16 KiB
C#
361 lines
16 KiB
C#
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using UnityEngine;
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using UnityEvent = UnityEngine.Event;
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namespace UnityEditor.U2D.Sprites
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{
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internal static class SpriteEditorHandles
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{
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private static Vector2 s_CurrentMousePosition;
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private static Vector2 s_DragStartScreenPosition;
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private static Vector2 s_DragScreenOffset;
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static internal Vector2 PointSlider(Vector2 pos, MouseCursor cursor, GUIStyle dragDot, GUIStyle dragDotActive)
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{
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int id = GUIUtility.GetControlID("Slider1D".GetHashCode(), FocusType.Keyboard);
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Vector2 screenVal = Handles.matrix.MultiplyPoint(pos);
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Rect handleScreenPos = new Rect(
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screenVal.x - dragDot.fixedWidth * .5f,
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screenVal.y - dragDot.fixedHeight * .5f,
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dragDot.fixedWidth,
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dragDot.fixedHeight
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);
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var evt = UnityEvent.current;
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switch (evt.GetTypeForControl(id))
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{
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case EventType.Repaint:
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if (GUIUtility.hotControl == id)
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dragDotActive.Draw(handleScreenPos, GUIContent.none, id);
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else
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dragDot.Draw(handleScreenPos, GUIContent.none, id);
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break;
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}
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return ScaleSlider(pos, cursor, handleScreenPos);
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}
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static internal Vector2 ScaleSlider(Vector2 pos, MouseCursor cursor, Rect cursorRect)
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{
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int id = GUIUtility.GetControlID("Slider1D".GetHashCode(), FocusType.Keyboard);
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return ScaleSlider(id, pos, cursor, cursorRect);
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}
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static private Vector2 ScaleSlider(int id, Vector2 pos, MouseCursor cursor, Rect cursorRect)
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{
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Vector2 screenVal = Handles.matrix.MultiplyPoint(pos);
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var evt = UnityEvent.current;
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switch (evt.GetTypeForControl(id))
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{
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case EventType.MouseDown:
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// am I closest to the thingy?
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if (evt.button == 0 &&
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cursorRect.Contains(UnityEvent.current.mousePosition) &&
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!evt.alt)
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{
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GUIUtility.hotControl = GUIUtility.keyboardControl = id; // Grab mouse focus
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s_CurrentMousePosition = evt.mousePosition;
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s_DragStartScreenPosition = evt.mousePosition;
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s_DragScreenOffset = s_CurrentMousePosition - screenVal;
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evt.Use();
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EditorGUIUtility.SetWantsMouseJumping(1);
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}
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break;
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case EventType.MouseDrag:
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if (GUIUtility.hotControl == id)
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{
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s_CurrentMousePosition += evt.delta;
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Vector2 oldPos = pos;
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pos = Handles.inverseMatrix.MultiplyPoint(s_CurrentMousePosition);
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if (!Mathf.Approximately((oldPos - pos).magnitude, 0f))
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GUI.changed = true;
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evt.Use();
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}
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break;
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case EventType.MouseUp:
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if (GUIUtility.hotControl == id && (evt.button == 0 || evt.button == 2))
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{
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GUIUtility.hotControl = 0;
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evt.Use();
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EditorGUIUtility.SetWantsMouseJumping(0);
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}
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break;
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case EventType.KeyDown:
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if (GUIUtility.hotControl == id)
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{
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if (evt.keyCode == KeyCode.Escape)
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{
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pos = Handles.inverseMatrix.MultiplyPoint(s_DragStartScreenPosition - s_DragScreenOffset);
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GUIUtility.hotControl = 0;
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GUI.changed = true;
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evt.Use();
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}
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}
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break;
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case EventType.Repaint:
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if (GUIUtility.hotControl == 0 || GUIUtility.hotControl == id)
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EditorGUIUtility.AddCursorRect(cursorRect, cursor, id);
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break;
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}
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return pos;
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}
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static internal Vector2 PivotSlider(Rect sprite, Vector2 pos, GUIStyle pivotDot, GUIStyle pivotDotActive)
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{
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int id = GUIUtility.GetControlID("Slider1D".GetHashCode(), FocusType.Keyboard);
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// Convert from normalized space to texture space
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pos = new Vector2(sprite.xMin + sprite.width * pos.x, sprite.yMin + sprite.height * pos.y);
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Vector2 screenVal = Handles.matrix.MultiplyPoint(pos);
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Rect handleScreenPos = new Rect(
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screenVal.x - pivotDot.fixedWidth * .5f,
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screenVal.y - pivotDot.fixedHeight * .5f,
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pivotDotActive.fixedWidth,
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pivotDotActive.fixedHeight
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);
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var evt = UnityEvent.current;
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switch (evt.GetTypeForControl(id))
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{
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case EventType.MouseDown:
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// am I closest to the thingy?
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if (evt.button == 0 && handleScreenPos.Contains(UnityEvent.current.mousePosition) && !evt.alt)
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{
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GUIUtility.hotControl = GUIUtility.keyboardControl = id; // Grab mouse focus
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s_CurrentMousePosition = evt.mousePosition;
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s_DragStartScreenPosition = evt.mousePosition;
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Vector2 rectScreenCenter = Handles.matrix.MultiplyPoint(pos);
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s_DragScreenOffset = s_CurrentMousePosition - rectScreenCenter;
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evt.Use();
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EditorGUIUtility.SetWantsMouseJumping(1);
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}
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break;
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case EventType.MouseDrag:
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if (GUIUtility.hotControl == id)
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{
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s_CurrentMousePosition += evt.delta;
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Vector2 oldPos = pos;
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Vector3 scrPos = Handles.inverseMatrix.MultiplyPoint(s_CurrentMousePosition - s_DragScreenOffset);
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pos = new Vector2(scrPos.x, scrPos.y);
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if (!Mathf.Approximately((oldPos - pos).magnitude, 0f))
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GUI.changed = true;
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evt.Use();
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}
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break;
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case EventType.MouseUp:
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if (GUIUtility.hotControl == id && (evt.button == 0 || evt.button == 2))
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{
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GUIUtility.hotControl = 0;
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evt.Use();
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EditorGUIUtility.SetWantsMouseJumping(0);
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}
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break;
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case EventType.KeyDown:
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if (GUIUtility.hotControl == id)
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{
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if (evt.keyCode == KeyCode.Escape)
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{
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pos = Handles.inverseMatrix.MultiplyPoint(s_DragStartScreenPosition - s_DragScreenOffset);
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GUIUtility.hotControl = 0;
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GUI.changed = true;
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evt.Use();
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}
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}
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break;
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case EventType.Repaint:
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EditorGUIUtility.AddCursorRect(handleScreenPos, MouseCursor.Arrow, id);
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if (GUIUtility.hotControl == id)
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pivotDotActive.Draw(handleScreenPos, GUIContent.none, id);
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else
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pivotDot.Draw(handleScreenPos, GUIContent.none, id);
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break;
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}
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// Convert from texture space back to normalized space
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pos = new Vector2((pos.x - sprite.xMin) / sprite.width, (pos.y - sprite.yMin) / sprite.height);
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return pos;
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}
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static internal Rect SliderRect(Rect pos)
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{
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int id = GUIUtility.GetControlID("SliderRect".GetHashCode(), FocusType.Keyboard);
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var evt = UnityEvent.current;
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// SpriteEditorWindow is telling us we got selected and so we fake a mousedown on our Repaint event to get "one-click dragging" going on
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if (SpriteEditorWindow.s_OneClickDragStarted && evt.type == EventType.Repaint)
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{
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HandleSliderRectMouseDown(id, evt, pos);
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SpriteEditorWindow.s_OneClickDragStarted = false;
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}
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switch (evt.GetTypeForControl(id))
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{
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case EventType.MouseDown:
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// am I closest to the thingy?
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if (evt.button == 0 && pos.Contains(Handles.inverseMatrix.MultiplyPoint(UnityEvent.current.mousePosition)) && !evt.alt)
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{
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HandleSliderRectMouseDown(id, evt, pos);
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evt.Use();
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}
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break;
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case EventType.MouseDrag:
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if (GUIUtility.hotControl == id)
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{
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s_CurrentMousePosition += evt.delta;
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Vector2 oldCenter = pos.center;
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pos.center = Handles.inverseMatrix.MultiplyPoint(s_CurrentMousePosition - s_DragScreenOffset);
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if (!Mathf.Approximately((oldCenter - pos.center).magnitude, 0f))
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GUI.changed = true;
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evt.Use();
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}
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break;
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case EventType.MouseUp:
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if (GUIUtility.hotControl == id && (evt.button == 0 || evt.button == 2))
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{
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GUIUtility.hotControl = 0;
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evt.Use();
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EditorGUIUtility.SetWantsMouseJumping(0);
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}
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break;
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case EventType.KeyDown:
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if (GUIUtility.hotControl == id)
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{
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if (evt.keyCode == KeyCode.Escape)
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{
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pos.center = Handles.inverseMatrix.MultiplyPoint(s_DragStartScreenPosition - s_DragScreenOffset);
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GUIUtility.hotControl = 0;
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GUI.changed = true;
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evt.Use();
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}
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}
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break;
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case EventType.Repaint:
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Vector2 topleft = Handles.inverseMatrix.MultiplyPoint(new Vector2(pos.xMin, pos.yMin));
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Vector2 bottomright = Handles.inverseMatrix.MultiplyPoint(new Vector2(pos.xMax, pos.yMax));
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EditorGUIUtility.AddCursorRect(new Rect(topleft.x, topleft.y, bottomright.x - topleft.x, bottomright.y - topleft.y), MouseCursor.Arrow, id);
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break;
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}
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return pos;
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}
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static internal void HandleSliderRectMouseDown(int id, UnityEvent evt, Rect pos)
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{
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GUIUtility.hotControl = GUIUtility.keyboardControl = id; // Grab mouse focus
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s_CurrentMousePosition = evt.mousePosition;
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s_DragStartScreenPosition = evt.mousePosition;
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Vector2 rectScreenCenter = Handles.matrix.MultiplyPoint(pos.center);
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s_DragScreenOffset = s_CurrentMousePosition - rectScreenCenter;
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EditorGUIUtility.SetWantsMouseJumping(1);
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}
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static int s_RectSelectionID = GUIUtility.GetPermanentControlID();
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static internal Rect RectCreator(Rect textureArea, GUIStyle rectStyle)
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{
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var evt = UnityEvent.current;
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Vector2 mousePos = evt.mousePosition;
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int id = s_RectSelectionID;
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Rect result = new Rect();
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switch (evt.GetTypeForControl(id))
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{
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case EventType.MouseDown:
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if (evt.button == 0)
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{
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GUIUtility.hotControl = id;
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// Make sure that the starting position is clamped to inside texture area
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s_DragStartScreenPosition = Handles.inverseMatrix.MultiplyPoint(mousePos);
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s_DragStartScreenPosition.x = Mathf.Min(Mathf.Max(s_DragStartScreenPosition.x, textureArea.xMin), textureArea.xMax);
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s_DragStartScreenPosition.y = Mathf.Min(Mathf.Max(s_DragStartScreenPosition.y, textureArea.yMin), textureArea.yMax);
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evt.Use();
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}
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break;
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case EventType.MouseDrag:
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if (GUIUtility.hotControl == id)
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{
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evt.Use();
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}
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break;
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case EventType.Repaint:
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{
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var startDragPoint = Handles.matrix.MultiplyPoint(s_DragStartScreenPosition);
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if (GUIUtility.hotControl == id && ValidRect(startDragPoint, mousePos))
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{
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// TODO: use rectstyle
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//rectStyle.Draw (GetCurrentRect (true, textureWidth, textureHeight, s_DragStartScreenPosition, s_CurrentMousePosition), GUIContent.none, false, false, false, false);
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SpriteEditorUtility.BeginLines(Color.green * 1.5f);
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SpriteEditorUtility.DrawBox(GetCurrentRect(false, textureArea, startDragPoint, mousePos));
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SpriteEditorUtility.EndLines();
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}
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}
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break;
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case EventType.MouseUp:
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if (GUIUtility.hotControl == id && evt.button == 0)
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{
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var startDragPoint = Handles.matrix.MultiplyPoint(s_DragStartScreenPosition);
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if (ValidRect(startDragPoint, mousePos))
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{
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result = GetCurrentRect(false, textureArea, startDragPoint, mousePos);
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GUI.changed = true;
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evt.Use();
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}
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GUIUtility.hotControl = 0;
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}
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break;
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case EventType.KeyDown:
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if (GUIUtility.hotControl == id)
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{
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if (evt.keyCode == KeyCode.Escape)
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{
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GUIUtility.hotControl = 0;
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GUI.changed = true;
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evt.Use();
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}
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}
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break;
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}
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return result;
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}
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static internal Rect RectCreator(float textureWidth, float textureHeight, GUIStyle rectStyle)
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{
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return RectCreator(new Rect(0, 0, textureWidth, textureHeight), rectStyle);
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}
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static private bool ValidRect(Vector2 startPoint, Vector2 endPoint)
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{
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return Mathf.Abs((endPoint - startPoint).x) > 5f && Mathf.Abs((endPoint - startPoint).y) > 5f;
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}
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static private Rect GetCurrentRect(bool screenSpace, Rect clampArea, Vector2 startPoint, Vector2 endPoint)
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{
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Rect r = EditorGUIExt.FromToRect(Handles.inverseMatrix.MultiplyPoint(startPoint), Handles.inverseMatrix.MultiplyPoint(endPoint));
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r = SpriteEditorUtility.ClampedRect(SpriteEditorUtility.RoundToInt(r), clampArea, false);
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if (screenSpace)
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{
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Vector2 topleft = Handles.matrix.MultiplyPoint(new Vector2(r.xMin, r.yMin));
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Vector2 bottomright = Handles.matrix.MultiplyPoint(new Vector2(r.xMax, r.yMax));
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r = new Rect(topleft.x, topleft.y, bottomright.x - topleft.x, bottomright.y - topleft.y);
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}
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return r;
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}
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}
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}
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