/// <summary>
/// Draw the specified anchor point.
/// </summary>
static public void DrawAnchorHandle(UIRect.AnchorPoint anchor, Transform myTrans, Vector3[] myCorners, int side, int id)
{
if (!anchor.target)
{
return;
}
int i0, i1;
if (side == 0)
{
// Left
i0 = 0;
i1 = 1;
}
else if (side == 1)
{
// Top
i0 = 1;
i1 = 2;
}
else if (side == 2)
{
// Right
i0 = 3;
i1 = 2;
}
else
{
// Bottom
i0 = 0;
i1 = 3;
}
Vector3 myPos = (myCorners[i0] + myCorners[i1]) * 0.5f;
Vector3[] sides = null;
if (anchor.rect != null)
{
sides = anchor.rect.worldCorners;
}
else
{
#if UNITY_4_3 || UNITY_4_5 || UNITY_4_6
Camera cam = anchor.target.camera;
#else
Camera cam = anchor.target.GetComponent <Camera>();
#endif
if (cam != null)
{
sides = cam.GetWorldCorners();
}
}
Vector3 theirPos;
if (sides != null)
{
Vector3 v0, v1;
if (side == 0 || side == 2)
{
// Left or right
v0 = Vector3.Lerp(sides[0], sides[3], anchor.relative);
v1 = Vector3.Lerp(sides[1], sides[2], anchor.relative);
}
else
{
// Top or bottom
v0 = Vector3.Lerp(sides[0], sides[1], anchor.relative);
v1 = Vector3.Lerp(sides[3], sides[2], anchor.relative);
}
theirPos = HandleUtility.ProjectPointLine(myPos, v0, v1);
}
else
{
theirPos = anchor.target.position;
}
NGUIHandles.DrawShadowedLine(myCorners, myPos, theirPos, Color.yellow);
if (Event.current.GetTypeForControl(id) == EventType.Repaint)
{
Vector2 screenPoint = HandleUtility.WorldToGUIPoint(theirPos);
#if UNITY_4_3 || UNITY_4_5 || UNITY_4_6
Rect rect = new Rect(screenPoint.x - 7f, screenPoint.y - 7f, 14f, 14f);
#else
Rect rect = new Rect(screenPoint.x - 5f, screenPoint.y - 9f, 14f, 14f);
#endif
if (mYellowDot == null)
{
mYellowDot = "sv_label_4";
}
Vector3 v0 = HandleUtility.WorldToGUIPoint(myPos);
Vector3 v1 = HandleUtility.WorldToGUIPoint(theirPos);
Handles.BeginGUI();
mYellowDot.Draw(rect, GUIContent.none, id);
Vector3 diff = v1 - v0;
bool isHorizontal = Mathf.Abs(diff.x) > Mathf.Abs(diff.y);
float mag = diff.magnitude;
if ((isHorizontal && mag > 60f) || (!isHorizontal && mag > 30f))
{
Vector3 pos = (myPos + theirPos) * 0.5f;
string text = anchor.absolute.ToString();
GUI.color = Color.yellow;
if (side == 0)
{
if (theirPos.x < myPos.x)
{
NGUIHandles.DrawCenteredLabel(pos, text);
}
}
else if (side == 1)
{
if (theirPos.y > myPos.y)
{
NGUIHandles.DrawCenteredLabel(pos, text);
}
}
else if (side == 2)
{
if (theirPos.x > myPos.x)
{
NGUIHandles.DrawCenteredLabel(pos, text);
}
}
else if (side == 3)
{
if (theirPos.y < myPos.y)
{
NGUIHandles.DrawCenteredLabel(pos, text);
}
}
GUI.color = Color.white;
}
Handles.EndGUI();
}
}
/// <summary>
/// Handles & interaction.
/// </summary>
public void OnSceneGUI()
{
if (Selection.objects.Length > 1)
{
return;
}
UICamera cam = UICamera.FindCameraForLayer(mPanel.gameObject.layer);
#if UNITY_4_3 || UNITY_4_5 || UNITY_4_6 || UNITY_4_7
if (cam == null || !cam.cachedCamera.isOrthoGraphic)
{
return;
}
#else
if (cam == null || !cam.cachedCamera.orthographic)
{
return;
}
#endif
NGUIEditorTools.HideMoveTool(true);
if (!UIWidget.showHandles)
{
return;
}
Event e = Event.current;
int id = GUIUtility.GetControlID(s_Hash, FocusType.Passive);
EventType type = e.GetTypeForControl(id);
Transform t = mPanel.cachedTransform;
Vector3[] handles = UIWidgetInspector.GetHandles(mPanel.worldCorners);
// Time to figure out what kind of action is underneath the mouse
UIWidgetInspector.Action actionUnderMouse = mAction;
Color handlesColor = new Color(0.5f, 0f, 0.5f);
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);
if (mPanel.isAnchored)
{
UIWidgetInspector.DrawAnchorHandle(mPanel.leftAnchor, mPanel.cachedTransform, handles, 0, id);
UIWidgetInspector.DrawAnchorHandle(mPanel.topAnchor, mPanel.cachedTransform, handles, 1, id);
UIWidgetInspector.DrawAnchorHandle(mPanel.rightAnchor, mPanel.cachedTransform, handles, 2, id);
UIWidgetInspector.DrawAnchorHandle(mPanel.bottomAnchor, mPanel.cachedTransform, handles, 3, id);
}
if (type == EventType.Repaint)
{
bool showDetails = (mAction == UIWidgetInspector.Action.Scale) || NGUISettings.drawGuides;
if (mAction == UIWidgetInspector.Action.None && e.modifiers == EventModifiers.Control)
{
showDetails = true;
}
if (NGUITools.GetActive(mPanel) && mPanel.parent == null)
{
showDetails = true;
}
if (showDetails)
{
NGUIHandles.DrawSize(handles, Mathf.RoundToInt(mPanel.width), Mathf.RoundToInt(mPanel.height));
}
}
bool canResize = (mPanel.clipping != UIDrawCall.Clipping.None);
// NOTE: Remove this part when it's possible to neatly resize rotated anchored panels.
if (canResize && mPanel.isAnchored)
{
Quaternion rot = mPanel.cachedTransform.localRotation;
if (Quaternion.Angle(rot, Quaternion.identity) > 0.01f)
{
canResize = false;
}
}
bool[] resizable = new bool[8];
resizable[4] = canResize; // left
resizable[5] = canResize; // top
resizable[6] = canResize; // right
resizable[7] = canResize; // bottom
resizable[0] = resizable[7] && resizable[4]; // bottom-left
resizable[1] = resizable[5] && resizable[4]; // top-left
resizable[2] = resizable[5] && resizable[6]; // top-right
resizable[3] = resizable[7] && resizable[6]; // bottom-right
UIWidget.Pivot pivotUnderMouse = UIWidgetInspector.GetPivotUnderMouse(handles, e, resizable, true, ref actionUnderMouse);
switch (type)
{
case EventType.Repaint:
{
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 (int i = 0; i < 4; ++i)
{
DrawKnob(handles[i], id, resizable[i]);
}
if (Mathf.Abs(v1.y - v0.y) > 80f)
{
if (mPanel.leftAnchor.target == null || mPanel.leftAnchor.absolute != 0)
{
DrawKnob(handles[4], id, resizable[4]);
}
if (mPanel.rightAnchor.target == null || mPanel.rightAnchor.absolute != 0)
{
DrawKnob(handles[6], id, resizable[6]);
}
}
if (Mathf.Abs(v3.x - v0.x) > 80f)
{
if (mPanel.topAnchor.target == null || mPanel.topAnchor.absolute != 0)
{
DrawKnob(handles[5], id, resizable[5]);
}
if (mPanel.bottomAnchor.target == null || mPanel.bottomAnchor.absolute != 0)
{
DrawKnob(handles[7], id, resizable[7]);
}
}
}
Handles.EndGUI();
}
}
break;
case EventType.MouseDown:
{
if (actionUnderMouse != UIWidgetInspector.Action.None)
{
mStartMouse = e.mousePosition;
mAllowSelection = true;
if (e.button == 1)
{
if (e.modifiers == 0)
{
GUIUtility.hotControl = GUIUtility.keyboardControl = id;
e.Use();
}
}
else if (e.button == 0 && actionUnderMouse != UIWidgetInspector.Action.None &&
UIWidgetInspector.Raycast(handles, out mStartDrag))
{
mWorldPos = t.position;
mLocalPos = t.localPosition;
mStartRot = t.localRotation.eulerAngles;
mStartDir = mStartDrag - t.position;
mStartCR = mPanel.baseClipRegion;
mDragPivot = pivotUnderMouse;
mActionUnderMouse = actionUnderMouse;
GUIUtility.hotControl = GUIUtility.keyboardControl = id;
e.Use();
}
}
}
break;
case EventType.MouseUp:
{
if (GUIUtility.hotControl == id)
{
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
if (e.button < 2)
{
bool handled = false;
if (e.button == 1)
{
// Right-click: Open a context menu listing all widgets underneath
NGUIEditorTools.ShowSpriteSelectionMenu(e.mousePosition);
handled = true;
}
else if (mAction == UIWidgetInspector.Action.None)
{
if (mAllowSelection)
{
// Left-click: Select the topmost widget
NGUIEditorTools.SelectWidget(e.mousePosition);
handled = true;
}
}
else
{
// Finished dragging something
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;
handled = true;
}
if (handled)
{
e.Use();
}
}
// Clear the actions
mActionUnderMouse = UIWidgetInspector.Action.None;
mAction = UIWidgetInspector.Action.None;
}
else if (mAllowSelection)
{
List <UIWidget> widgets = NGUIEditorTools.SceneViewRaycast(e.mousePosition);
if (widgets.Count > 0)
{
Selection.activeGameObject = widgets[0].gameObject;
}
}
mAllowSelection = true;
}
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 (mAction != UIWidgetInspector.Action.None || mActionUnderMouse != UIWidgetInspector.Action.None)
{
Vector3 pos;
if (UIWidgetInspector.Raycast(handles, out pos))
{
if (mAction == UIWidgetInspector.Action.None && mActionUnderMouse != UIWidgetInspector.Action.None)
{
// Wait until the mouse moves by more than a few pixels
if (dragStarted)
{
if (mActionUnderMouse == UIWidgetInspector.Action.Move)
{
NGUISnap.Recalculate(mPanel);
}
else if (mActionUnderMouse == UIWidgetInspector.Action.Rotate)
{
mStartRot = t.localRotation.eulerAngles;
mStartDir = mStartDrag - t.position;
}
else if (mActionUnderMouse == UIWidgetInspector.Action.Scale)
{
mStartCR = mPanel.baseClipRegion;
mDragPivot = pivotUnderMouse;
}
mAction = actionUnderMouse;
}
}
if (mAction != UIWidgetInspector.Action.None)
{
NGUIEditorTools.RegisterUndo("Change Rect", t);
NGUIEditorTools.RegisterUndo("Change Rect", mPanel);
if (mAction == UIWidgetInspector.Action.Move)
{
Vector3 before = t.position;
Vector3 beforeLocal = t.localPosition;
t.position = mWorldPos + (pos - mStartDrag);
pos = NGUISnap.Snap(t.localPosition, mPanel.localCorners,
e.modifiers != EventModifiers.Control) - beforeLocal;
t.position = before;
NGUIMath.MoveRect(mPanel, pos.x, pos.y);
}
else if (mAction == UIWidgetInspector.Action.Rotate)
{
Vector3 dir = pos - t.position;
float angle = Vector3.Angle(mStartDir, dir);
if (angle > 0f)
{
float dot = Vector3.Dot(Vector3.Cross(mStartDir, dir), t.forward);
if (dot < 0f)
{
angle = -angle;
}
angle = mStartRot.z + angle;
angle = (NGUISnap.allow && e.modifiers != EventModifiers.Control) ?
Mathf.Round(angle / 15f) * 15f : Mathf.Round(angle);
t.localRotation = Quaternion.Euler(mStartRot.x, mStartRot.y, angle);
}
}
else if (mAction == UIWidgetInspector.Action.Scale)
{
// World-space delta since the drag started
Vector3 delta = pos - mStartDrag;
// Adjust the widget's position and scale based on the delta, restricted by the pivot
AdjustClipping(mPanel, mLocalPos, mStartCR, delta, mDragPivot);
}
}
}
}
}
}
break;
case EventType.KeyDown:
{
if (e.keyCode == KeyCode.UpArrow)
{
NGUIEditorTools.RegisterUndo("Nudge Rect", t);
NGUIEditorTools.RegisterUndo("Nudge Rect", mPanel);
NGUIMath.MoveRect(mPanel, 0f, 1f);
e.Use();
}
else if (e.keyCode == KeyCode.DownArrow)
{
NGUIEditorTools.RegisterUndo("Nudge Rect", t);
NGUIEditorTools.RegisterUndo("Nudge Rect", mPanel);
NGUIMath.MoveRect(mPanel, 0f, -1f);
e.Use();
}
else if (e.keyCode == KeyCode.LeftArrow)
{
NGUIEditorTools.RegisterUndo("Nudge Rect", t);
NGUIEditorTools.RegisterUndo("Nudge Rect", mPanel);
NGUIMath.MoveRect(mPanel, -1f, 0f);
e.Use();
}
else if (e.keyCode == KeyCode.RightArrow)
{
NGUIEditorTools.RegisterUndo("Nudge Rect", t);
NGUIEditorTools.RegisterUndo("Nudge Rect", mPanel);
NGUIMath.MoveRect(mPanel, 1f, 0f);
e.Use();
}
else if (e.keyCode == KeyCode.Escape)
{
if (GUIUtility.hotControl == id)
{
if (mAction != UIWidgetInspector.Action.None)
{
Undo.PerformUndo();
}
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
mActionUnderMouse = UIWidgetInspector.Action.None;
mAction = UIWidgetInspector.Action.None;
e.Use();
}
else
{
Selection.activeGameObject = null;
}
}
}
break;
}
}
/// <summary>
/// Draw the on-screen selection, knobs, and handle all interaction logic.
/// </summary>
public void OnSceneGUI()
{
NGUIEditorTools.HideMoveTool(true);
if (!UIWidget.showHandles)
{
return;
}
mWidget = target as UIWidget;
Transform t = mWidget.cachedTransform;
Event e = Event.current;
int id = GUIUtility.GetControlID(s_Hash, FocusType.Passive);
EventType type = e.GetTypeForControl(id);
Action actionUnderMouse = mAction;
Vector3[] handles = GetHandles(mWidget.worldCorners);
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);
// If the widget is anchored, draw the anchors
if (mWidget.isAnchored)
{
DrawAnchorHandle(mWidget.leftAnchor, mWidget.cachedTransform, handles, 0, id);
DrawAnchorHandle(mWidget.topAnchor, mWidget.cachedTransform, handles, 1, id);
DrawAnchorHandle(mWidget.rightAnchor, mWidget.cachedTransform, handles, 2, id);
DrawAnchorHandle(mWidget.bottomAnchor, mWidget.cachedTransform, handles, 3, id);
}
if (type == EventType.Repaint)
{
bool showDetails = (mAction == UIWidgetInspector.Action.Scale) || NGUISettings.drawGuides;
if (mAction == UIWidgetInspector.Action.None && e.modifiers == EventModifiers.Control)
{
showDetails = true;
}
if (NGUITools.GetActive(mWidget) && mWidget.parent == null)
{
showDetails = true;
}
if (showDetails)
{
NGUIHandles.DrawSize(handles, mWidget.width, mWidget.height);
}
}
// Presence of the legacy stretch component prevents resizing
bool canResize = (mWidget.GetComponent <UIStretch>() == null);
bool[] resizable = new bool[8];
resizable[4] = canResize; // left
resizable[5] = canResize; // top
resizable[6] = canResize; // right
resizable[7] = canResize; // bottom
UILabel lbl = mWidget as UILabel;
if (lbl != null)
{
if (lbl.overflowMethod == UILabel.Overflow.ResizeFreely)
{
resizable[4] = false; // left
resizable[5] = false; // top
resizable[6] = false; // right
resizable[7] = false; // bottom
}
else if (lbl.overflowMethod == UILabel.Overflow.ResizeHeight)
{
resizable[5] = false; // top
resizable[7] = false; // bottom
}
}
if (mWidget.keepAspectRatio == UIWidget.AspectRatioSource.BasedOnHeight)
{
resizable[4] = false;
resizable[6] = false;
}
else if (mWidget.keepAspectRatio == UIWidget.AspectRatioSource.BasedOnWidth)
{
resizable[5] = false;
resizable[7] = false;
}
resizable[0] = resizable[7] && resizable[4]; // bottom-left
resizable[1] = resizable[5] && resizable[4]; // top-left
resizable[2] = resizable[5] && resizable[6]; // top-right
resizable[3] = resizable[7] && resizable[6]; // bottom-right
UIWidget.Pivot pivotUnderMouse = GetPivotUnderMouse(handles, e, resizable, true, ref actionUnderMouse);
switch (type)
{
case EventType.Repaint:
{
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 (int i = 0; i < 4; ++i)
{
DrawKnob(handles[i], mWidget.pivot == pivotPoints[i], resizable[i], id);
}
if ((v1 - v0).magnitude > 80f)
{
if (mWidget.leftAnchor.target == null || mWidget.leftAnchor.absolute != 0)
{
DrawKnob(handles[4], mWidget.pivot == pivotPoints[4], resizable[4], id);
}
if (mWidget.rightAnchor.target == null || mWidget.rightAnchor.absolute != 0)
{
DrawKnob(handles[6], mWidget.pivot == pivotPoints[6], resizable[6], id);
}
}
if ((v3 - v0).magnitude > 80f)
{
if (mWidget.topAnchor.target == null || mWidget.topAnchor.absolute != 0)
{
DrawKnob(handles[5], mWidget.pivot == pivotPoints[5], resizable[5], id);
}
if (mWidget.bottomAnchor.target == null || mWidget.bottomAnchor.absolute != 0)
{
DrawKnob(handles[7], mWidget.pivot == pivotPoints[7], resizable[7], id);
}
}
}
Handles.EndGUI();
}
}
break;
case EventType.MouseDown:
{
if (actionUnderMouse != Action.None)
{
mStartMouse = e.mousePosition;
mAllowSelection = true;
if (e.button == 1)
{
if (e.modifiers == 0)
{
GUIUtility.hotControl = GUIUtility.keyboardControl = id;
e.Use();
}
}
else if (e.button == 0 && actionUnderMouse != Action.None && Raycast(handles, out mStartDrag))
{
mWorldPos = t.position;
mLocalPos = t.localPosition;
mStartRot = t.localRotation.eulerAngles;
mStartDir = mStartDrag - t.position;
mStartWidth = mWidget.width;
mStartHeight = mWidget.height;
mStartLeft.x = mWidget.leftAnchor.relative;
mStartLeft.y = mWidget.leftAnchor.absolute;
mStartRight.x = mWidget.rightAnchor.relative;
mStartRight.y = mWidget.rightAnchor.absolute;
mStartBottom.x = mWidget.bottomAnchor.relative;
mStartBottom.y = mWidget.bottomAnchor.absolute;
mStartTop.x = mWidget.topAnchor.relative;
mStartTop.y = mWidget.topAnchor.absolute;
mDragPivot = pivotUnderMouse;
mActionUnderMouse = actionUnderMouse;
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 (mAction != Action.None || mActionUnderMouse != Action.None)
{
Vector3 pos;
if (Raycast(handles, out pos))
{
if (mAction == Action.None && mActionUnderMouse != Action.None)
{
// Wait until the mouse moves by more than a few pixels
if (dragStarted)
{
if (mActionUnderMouse == Action.Move)
{
NGUISnap.Recalculate(mWidget);
}
else if (mActionUnderMouse == Action.Rotate)
{
mStartRot = t.localRotation.eulerAngles;
mStartDir = mStartDrag - t.position;
}
else if (mActionUnderMouse == Action.Scale)
{
mStartWidth = mWidget.width;
mStartHeight = mWidget.height;
mDragPivot = pivotUnderMouse;
}
mAction = actionUnderMouse;
}
}
if (mAction != Action.None)
{
NGUIEditorTools.RegisterUndo("Change Rect", t);
NGUIEditorTools.RegisterUndo("Change Rect", mWidget);
// Reset the widget before adjusting anything
t.position = mWorldPos;
mWidget.width = mStartWidth;
mWidget.height = mStartHeight;
mWidget.leftAnchor.Set(mStartLeft.x, mStartLeft.y);
mWidget.rightAnchor.Set(mStartRight.x, mStartRight.y);
mWidget.bottomAnchor.Set(mStartBottom.x, mStartBottom.y);
mWidget.topAnchor.Set(mStartTop.x, mStartTop.y);
if (mAction == Action.Move)
{
// Move the widget
t.position = mWorldPos + (pos - mStartDrag);
// Snap the widget
Vector3 after = NGUISnap.Snap(t.localPosition, mWidget.localCorners, e.modifiers != EventModifiers.Control);
// Calculate the final delta
Vector3 localDelta = (after - mLocalPos);
// Restore the position
t.position = mWorldPos;
// Adjust the widget by the delta
NGUIMath.MoveRect(mWidget, localDelta.x, localDelta.y);
}
else if (mAction == Action.Rotate)
{
Vector3 dir = pos - t.position;
float angle = Vector3.Angle(mStartDir, dir);
if (angle > 0f)
{
float dot = Vector3.Dot(Vector3.Cross(mStartDir, dir), t.forward);
if (dot < 0f)
{
angle = -angle;
}
angle = mStartRot.z + angle;
angle = (NGUISnap.allow && e.modifiers != EventModifiers.Control) ?
Mathf.Round(angle / 15f) * 15f : Mathf.Round(angle);
t.localRotation = Quaternion.Euler(mStartRot.x, mStartRot.y, angle);
}
}
else if (mAction == Action.Scale)
{
// Move the widget
t.position = mWorldPos + (pos - mStartDrag);
// Calculate the final delta
Vector3 localDelta = (t.localPosition - mLocalPos);
// Restore the position
t.position = mWorldPos;
// Adjust the widget's position and scale based on the delta, restricted by the pivot
NGUIMath.ResizeWidget(mWidget, mDragPivot, localDelta.x, localDelta.y, 2, 2);
ReEvaluateAnchorType();
}
}
}
}
}
}
break;
case EventType.MouseUp:
{
if (GUIUtility.hotControl == id)
{
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
if (e.button < 2)
{
bool handled = false;
if (e.button == 1)
{
// Right-click: Open a context menu listing all widgets underneath
NGUIEditorTools.ShowSpriteSelectionMenu(e.mousePosition);
handled = true;
}
else if (mAction == Action.None)
{
if (mAllowSelection)
{
// Left-click: Select the topmost widget
NGUIEditorTools.SelectWidget(e.mousePosition);
handled = true;
}
}
else
{
// Finished dragging something
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;
handled = true;
}
if (handled)
{
e.Use();
}
}
// Clear the actions
mActionUnderMouse = Action.None;
mAction = Action.None;
}
else if (mAllowSelection)
{
BetterList <UIWidget> widgets = NGUIEditorTools.SceneViewRaycast(e.mousePosition);
if (widgets.size > 0)
{
Selection.activeGameObject = widgets[0].gameObject;
}
}
mAllowSelection = true;
}
break;
case EventType.KeyDown:
{
if (e.keyCode == KeyCode.UpArrow)
{
NGUIEditorTools.RegisterUndo("Nudge Rect", t);
NGUIEditorTools.RegisterUndo("Nudge Rect", mWidget);
NGUIMath.MoveRect(mWidget, 0f, 1f);
e.Use();
}
else if (e.keyCode == KeyCode.DownArrow)
{
NGUIEditorTools.RegisterUndo("Nudge Rect", t);
NGUIEditorTools.RegisterUndo("Nudge Rect", mWidget);
NGUIMath.MoveRect(mWidget, 0f, -1f);
e.Use();
}
else if (e.keyCode == KeyCode.LeftArrow)
{
NGUIEditorTools.RegisterUndo("Nudge Rect", t);
NGUIEditorTools.RegisterUndo("Nudge Rect", mWidget);
NGUIMath.MoveRect(mWidget, -1f, 0f);
e.Use();
}
else if (e.keyCode == KeyCode.RightArrow)
{
NGUIEditorTools.RegisterUndo("Nudge Rect", t);
NGUIEditorTools.RegisterUndo("Nudge Rect", mWidget);
NGUIMath.MoveRect(mWidget, 1f, 0f);
e.Use();
}
else if (e.keyCode == KeyCode.Escape)
{
if (GUIUtility.hotControl == id)
{
if (mAction != Action.None)
{
Undo.PerformUndo();
}
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
mActionUnderMouse = Action.None;
mAction = Action.None;
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 (!UIWidget.showHandles)
{
return;
}
MonoBehaviour mb = target as MonoBehaviour;
if (mb.GetComponent <UIWidget>() != null)
{
return;
}
if (mb.GetComponent <UIPanel>() != null)
{
return;
}
Transform t = mb.transform;
UIWidget[] widgets = t.GetComponentsInChildren <UIWidget>();
Event e = Event.current;
int id = GUIUtility.GetControlID(mHash, FocusType.Passive);
EventType type = e.GetTypeForControl(id);
bool isWithinRect = false;
Vector3[] corners = null;
Vector3[] handles = null;
if (widgets.Length > 0)
{
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);
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]);
}
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;
Color 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
Vector2[] screenPos = new Vector2[8];
for (int i = 0; i < 8; ++i)
{
screenPos[i] = HandleUtility.WorldToGUIPoint(handles[i]);
}
bounds = new Bounds(screenPos[0], Vector3.zero);
for (int 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;
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:
{
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 (int 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
bool 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;
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;
}
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)
{
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;
}
}
