| static private DrawKnob ( Vector3 point, bool selected, int id ) : void | ||
| point | Vector3 | |
| selected | bool | |
| id | int | |
| return | void | |
/// <summary>
/// Make it possible to easily drag the transform around.
/// </summary>
public void OnSceneGUI()
{
//NGUIEditorTools.HideMoveTool(true);
if (!UIWidget.showHandles)
{
return;
}
var mb = target as MonoBehaviour;
if (mb.GetComponent <UIWidget>() != null)
{
return;
}
if (mb.GetComponent <UIPanel>() != null)
{
return;
}
var t = mb.transform;
var widgets = t.GetComponentsInChildren <UIWidget>();
var e = Event.current;
var id = GUIUtility.GetControlID(mHash, FocusType.Passive);
var type = e.GetTypeForControl(id);
var isWithinRect = false;
Vector3[] corners = null;
Vector3[] handles = null;
if (widgets.Length > 0)
{
var worldToLocal = t.worldToLocalMatrix;
var localToWorld = t.localToWorldMatrix;
var bounds = new Bounds();
// Calculate the local bounds
for (var i = 0; i < widgets.Length; ++i)
{
var wcs = widgets[i].worldCorners;
for (var b = 0; b < 4; ++b)
{
wcs[b] = worldToLocal.MultiplyPoint3x4(wcs[b]);
if (i == 0 && b == 0)
{
bounds = new Bounds(wcs[b], Vector3.zero);
}
else
{
bounds.Encapsulate(wcs[b]);
}
}
}
// Calculate the 4 local corners
var v0 = bounds.min;
var v1 = bounds.max;
var z = Mathf.Min(v0.z, v1.z);
corners = new Vector3[4];
corners[0] = new Vector3(v0.x, v0.y, z);
corners[1] = new Vector3(v0.x, v1.y, z);
corners[2] = new Vector3(v1.x, v1.y, z);
corners[3] = new Vector3(v1.x, v0.y, z);
// Transform the 4 corners into world space
for (var i = 0; i < 4; ++i)
{
corners[i] = localToWorld.MultiplyPoint3x4(corners[i]);
}
handles = new Vector3[8];
handles[0] = corners[0];
handles[1] = corners[1];
handles[2] = corners[2];
handles[3] = corners[3];
handles[4] = (corners[0] + corners[1]) * 0.5f;
handles[5] = (corners[1] + corners[2]) * 0.5f;
handles[6] = (corners[2] + corners[3]) * 0.5f;
handles[7] = (corners[0] + corners[3]) * 0.5f;
var handlesColor = UIWidgetInspector.handlesColor;
NGUIHandles.DrawShadowedLine(handles, handles[0], handles[1], handlesColor);
NGUIHandles.DrawShadowedLine(handles, handles[1], handles[2], handlesColor);
NGUIHandles.DrawShadowedLine(handles, handles[2], handles[3], handlesColor);
NGUIHandles.DrawShadowedLine(handles, handles[0], handles[3], handlesColor);
isWithinRect = mIsDragging || (e.modifiers == 0 &&
NGUIEditorTools.SceneViewDistanceToRectangle(corners, e.mousePosition) == 0f);
#if !UNITY_3_5
// Change the mouse cursor to a more appropriate one
var screenPos = new Vector2[8];
for (var i = 0; i < 8; ++i)
{
screenPos[i] = HandleUtility.WorldToGUIPoint(handles[i]);
}
bounds = new Bounds(screenPos[0], Vector3.zero);
for (var i = 1; i < 8; ++i)
{
bounds.Encapsulate(screenPos[i]);
}
// Change the cursor to a move arrow when it's within the screen rectangle
Vector2 min = bounds.min;
Vector2 max = bounds.max;
var rect = new Rect(min.x, min.y, max.x - min.x, max.y - min.y);
UIWidgetInspector.SetCursorRect(rect, isWithinRect ? MouseCursor.MoveArrow : MouseCursor.Arrow);
#endif
}
switch (type)
{
case EventType.Repaint:
{
if (handles != null)
{
Vector3 v0 = HandleUtility.WorldToGUIPoint(handles[0]);
Vector3 v2 = HandleUtility.WorldToGUIPoint(handles[2]);
if ((v2 - v0).magnitude > 60f)
{
Vector3 v1 = HandleUtility.WorldToGUIPoint(handles[1]);
Vector3 v3 = HandleUtility.WorldToGUIPoint(handles[3]);
Handles.BeginGUI();
{
for (var i = 0; i < 4; ++i)
{
UIWidgetInspector.DrawKnob(handles[i], false, false, id);
}
if (Mathf.Abs(v1.y - v0.y) > 80f)
{
UIWidgetInspector.DrawKnob(handles[4], false, false, id);
UIWidgetInspector.DrawKnob(handles[6], false, false, id);
}
if (Mathf.Abs(v3.x - v0.x) > 80f)
{
UIWidgetInspector.DrawKnob(handles[5], false, false, id);
UIWidgetInspector.DrawKnob(handles[7], false, false, id);
}
}
Handles.EndGUI();
}
}
}
break;
case EventType.MouseDown:
{
mAllowSelection = true;
mStartMouse = e.mousePosition;
if (e.button == 1 && isWithinRect)
{
GUIUtility.hotControl = GUIUtility.keyboardControl = id;
e.Use();
}
else if (e.button == 0 && isWithinRect && corners != null && UIWidgetInspector.Raycast(corners, out mStartDrag))
{
mCanDrag = true;
mStartPos = t.position;
GUIUtility.hotControl = GUIUtility.keyboardControl = id;
e.Use();
}
}
break;
case EventType.MouseDrag:
{
// Prevent selection once the drag operation begins
var dragStarted = (e.mousePosition - mStartMouse).magnitude > 3f;
if (dragStarted)
{
mAllowSelection = false;
}
if (GUIUtility.hotControl == id)
{
e.Use();
if (mCanDrag)
{
Vector3 pos;
if (corners != null & UIWidgetInspector.Raycast(corners, out pos))
{
// Wait until the mouse moves by more than a few pixels
if (!mIsDragging && dragStarted)
{
NGUIEditorTools.RegisterUndo("Move " + t.name, t);
mStartPos = t.position;
mIsDragging = true;
}
if (mIsDragging)
{
t.position = mStartPos + (pos - mStartDrag);
pos = t.localPosition;
pos.x = Mathf.Round(pos.x);
pos.y = Mathf.Round(pos.y);
pos.z = Mathf.Round(pos.z);
t.localPosition = pos;
}
}
}
}
}
break;
case EventType.MouseUp:
{
if (GUIUtility.hotControl == id)
{
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
if (e.button == 0)
{
if (mIsDragging)
{
mIsDragging = false;
var pos = t.localPosition;
pos.x = Mathf.Round(pos.x);
pos.y = Mathf.Round(pos.y);
pos.z = Mathf.Round(pos.z);
t.localPosition = pos;
}
else if (mAllowSelection)
{
// Left-click: Select the topmost widget
NGUIEditorTools.SelectWidget(e.mousePosition);
e.Use();
}
e.Use();
}
else
{
// Right-click: Open a context menu listing all widgets underneath
NGUIEditorTools.ShowSpriteSelectionMenu(e.mousePosition);
e.Use();
}
mCanDrag = false;
}
}
break;
case EventType.KeyDown:
{
if (e.keyCode == KeyCode.UpArrow)
{
var pos = t.localPosition;
pos.y += 1f;
t.localPosition = pos;
e.Use();
}
else if (e.keyCode == KeyCode.DownArrow)
{
var pos = t.localPosition;
pos.y -= 1f;
t.localPosition = pos;
e.Use();
}
else if (e.keyCode == KeyCode.LeftArrow)
{
var pos = t.localPosition;
pos.x -= 1f;
t.localPosition = pos;
e.Use();
}
else if (e.keyCode == KeyCode.RightArrow)
{
var pos = t.localPosition;
pos.x += 1f;
t.localPosition = pos;
e.Use();
}
else if (e.keyCode == KeyCode.Escape)
{
if (GUIUtility.hotControl == id)
{
if (mIsDragging)
{
mIsDragging = false;
t.position = mStartPos;
}
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
e.Use();
}
else
{
Selection.activeGameObject = null;
}
}
}
break;
}
}
/// <summary>
/// Make it possible to easily drag the transform around.
/// </summary>
public void OnSceneGUI()
{
NGUIEditorTools.HideMoveTool(true);
if (Tools.current != Tool.Move)
{
return;
}
MonoBehaviour mb = target as MonoBehaviour;
if (mb.GetComponent <UIWidget>() != null)
{
return;
}
Transform t = mb.transform;
UIWidget[] widgets = t.GetComponentsInChildren <UIWidget>();
if (widgets.Length == 0)
{
return;
}
Matrix4x4 worldToLocal = t.worldToLocalMatrix;
Matrix4x4 localToWorld = t.localToWorldMatrix;
Bounds bounds = new Bounds();
// Calculate the local bounds
for (int i = 0; i < widgets.Length; ++i)
{
Vector3[] wcs = widgets[i].worldCorners;
for (int b = 0; b < 4; ++b)
{
wcs[b] = worldToLocal.MultiplyPoint3x4(wcs[b]);
if (i == 0 && b == 0)
{
bounds = new Bounds(wcs[b], Vector3.zero);
}
else
{
bounds.Encapsulate(wcs[b]);
}
}
}
// Calculate the 4 local corners
Vector3 v0 = bounds.min;
Vector3 v1 = bounds.max;
float z = Mathf.Min(v0.z, v1.z);
Vector3[] corners = new Vector3[4];
corners[0] = new Vector3(v0.x, v0.y, z);
corners[1] = new Vector3(v0.x, v1.y, z);
corners[2] = new Vector3(v1.x, v1.y, z);
corners[3] = new Vector3(v1.x, v0.y, z);
// Transform the 4 corners into world space
for (int i = 0; i < 4; ++i)
{
corners[i] = localToWorld.MultiplyPoint3x4(corners[i]);
}
Event e = Event.current;
int id = GUIUtility.GetControlID(mHash, FocusType.Passive);
EventType type = e.GetTypeForControl(id);
Handles.color = UIWidgetInspector.handlesColor;
Handles.DrawLine(corners[0], corners[1]);
Handles.DrawLine(corners[1], corners[2]);
Handles.DrawLine(corners[2], corners[3]);
Handles.DrawLine(corners[0], corners[3]);
Vector3[] worldPos = new Vector3[8];
worldPos[0] = corners[0];
worldPos[1] = corners[1];
worldPos[2] = corners[2];
worldPos[3] = corners[3];
worldPos[4] = (corners[0] + corners[1]) * 0.5f;
worldPos[5] = (corners[1] + corners[2]) * 0.5f;
worldPos[6] = (corners[2] + corners[3]) * 0.5f;
worldPos[7] = (corners[0] + corners[3]) * 0.5f;
bool isWithinRect = mIsDragging || (e.modifiers == 0 &&
NGUIEditorTools.SceneViewDistanceToRectangle(corners, e.mousePosition) == 0f);
#if !UNITY_3_5
// Change the mouse cursor to a more appropriate one
{
Vector2[] screenPos = new Vector2[8];
for (int i = 0; i < 8; ++i)
{
screenPos[i] = HandleUtility.WorldToGUIPoint(worldPos[i]);
}
Bounds b = new Bounds(screenPos[0], Vector3.zero);
for (int i = 1; i < 8; ++i)
{
b.Encapsulate(screenPos[i]);
}
// Change the cursor to a move arrow when it's within the screen rectangle
Vector2 min = b.min;
Vector2 max = b.max;
Rect rect = new Rect(min.x, min.y, max.x - min.x, max.y - min.y);
UIWidgetInspector.SetCursorRect(rect, isWithinRect ? MouseCursor.MoveArrow : MouseCursor.Arrow);
}
#endif
switch (type)
{
case EventType.Repaint:
{
Handles.BeginGUI();
{
for (int i = 0; i < 8; ++i)
{
UIWidgetInspector.DrawKnob(worldPos[i], false, false, id);
}
}
Handles.EndGUI();
}
break;
case EventType.MouseDown:
{
mAllowSelection = true;
mStartMouse = e.mousePosition;
if (e.button == 1)
{
GUIUtility.hotControl = GUIUtility.keyboardControl = id;
e.Use();
}
else if (e.button == 0 && isWithinRect && UIWidgetInspector.Raycast(corners, out mStartDrag))
{
mCanDrag = true;
mStartPos = t.position;
GUIUtility.hotControl = GUIUtility.keyboardControl = id;
e.Use();
}
}
break;
case EventType.MouseDrag:
{
// Prevent selection once the drag operation begins
bool dragStarted = (e.mousePosition - mStartMouse).magnitude > 3f;
if (dragStarted)
{
mAllowSelection = false;
}
if (GUIUtility.hotControl == id)
{
e.Use();
if (mCanDrag)
{
Vector3 pos;
if (UIWidgetInspector.Raycast(corners, out pos))
{
// Wait until the mouse moves by more than a few pixels
if (!mIsDragging && dragStarted)
{
NGUIEditorTools.RegisterUndo("Move " + t.name, t);
mStartPos = t.position;
mIsDragging = true;
}
if (mIsDragging)
{
t.position = mStartPos + (pos - mStartDrag);
pos = t.localPosition;
pos.x = Mathf.Round(pos.x);
pos.y = Mathf.Round(pos.y);
pos.z = Mathf.Round(pos.z);
t.localPosition = pos;
}
}
}
}
}
break;
case EventType.MouseUp:
{
if (GUIUtility.hotControl == id)
{
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
if (e.button == 0)
{
if (mIsDragging)
{
mIsDragging = false;
Vector3 pos = t.localPosition;
pos.x = Mathf.Round(pos.x);
pos.y = Mathf.Round(pos.y);
pos.z = Mathf.Round(pos.z);
t.localPosition = pos;
}
e.Use();
}
else if (e.button == 1 && mAllowSelection)
{
if (NGUIEditorTools.SelectWidgetOrContainer(mb.gameObject, e.mousePosition, false))
{
e.Use();
}
}
mCanDrag = false;
}
}
break;
case EventType.KeyDown:
{
if (e.keyCode == KeyCode.UpArrow)
{
Vector3 pos = t.localPosition;
pos.y += 1f;
t.localPosition = pos;
e.Use();
}
else if (e.keyCode == KeyCode.DownArrow)
{
Vector3 pos = t.localPosition;
pos.y -= 1f;
t.localPosition = pos;
e.Use();
}
else if (e.keyCode == KeyCode.LeftArrow)
{
Vector3 pos = t.localPosition;
pos.x -= 1f;
t.localPosition = pos;
e.Use();
}
else if (e.keyCode == KeyCode.RightArrow)
{
Vector3 pos = t.localPosition;
pos.x += 1f;
t.localPosition = pos;
e.Use();
}
else if (e.keyCode == KeyCode.Escape)
{
if (GUIUtility.hotControl == id)
{
if (mIsDragging)
{
mIsDragging = false;
t.position = mStartPos;
}
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
e.Use();
}
else
{
Selection.activeGameObject = null;
}
}
}
break;
}
}