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lib/maxsdk70/include/omanapi.h

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+/**********************************************************************
+ 	FILE: omanapi.h
+
+	DESCRIPTION:  Defines an interface to the osnapmanager class
+
+	CREATED BY: John Hutchinson
+	HISTORY: May 14, 1997
+	Copyright (c) 1994, All Rights Reserved.
+ **********************************************************************/
+#ifndef _IOMAN_H
+#define _IOMAN_H
+// This class provides an interface to the OsnapManager. People who implement osnaps
+// need to record hits with the manager. People implementing command modes are responsible 
+// for getting the snap preview done and may be responsible for initting and closing point
+// sequences.
+class Osnap;
+class OsnapHit;
+
+// Flag masks for user settings
+#define SHOW_PREVIEW  			(1<<0)
+#define HIGHLIGHT_GEOM  		(1<<1)
+#define HIGHLIGHT_POINT  		(1<<2)
+#define SHOW_CURSOR					(1<<3)
+#define XYZ_CONSTRAINT			(1<<5)
+#define SNAP_FROZEN					(1<<15)
+#define DISPLAY_RUBBER_BAND	(1<<20)
+
+// Flag masks for internal stuff
+#define BUFFER_HOLDING  		(1<<6)
+
+  
+#define IID_IOsnapManager Interface_ID(0x5ba68f3, 0x490c28a2)
+class IOsnapManager :  public BaseInterface
+{
+public:
+	virtual BOOL getactive() const =0;
+	virtual BOOL getAxisConstraint()=0;
+	virtual void RecordHit(OsnapHit* somehit)=0;
+	virtual BOOL OKForRelativeSnap()=0;
+	virtual BOOL RefPointWasSnapped()=0;
+	virtual Point3 GetRefPoint(BOOL top = TRUE)=0;
+	virtual BOOL IsHolding()=0;
+	virtual OsnapHit &GetHit()=0;
+	virtual ViewExp* GetVpt()=0;
+	virtual INode* GetNode()=0;
+	virtual int GetSnapStrength()=0;
+	virtual Matrix3 GetObjectTM()=0;
+	virtual TimeValue GetTime()=0;
+	virtual void wTranspoint(Point3 *inpt, IPoint3 *outpt)=0;
+	virtual void Reset() =0;
+	virtual BOOL TestAFlag(int mask)=0;
+	virtual Point3 GetCurrentPoint()=0;
+};
+
+#define IID_IOsnapManager7 Interface_ID(0x795e7eae, 0x48e02d13)
+class IOsnapManager7 :  public IOsnapManager
+{
+public:
+	// --- Snap Preview Radius management
+	// This is the radius of the circular area around the mouse cursor in which 
+	// the snap point has to be in order to register a hit with the Snap Manager.
+	// From all the registered hits, the Snap Manager determines the closest to
+	// the mouse cursor and asks it to highlight ("preview" itself)
+	virtual int GetSnapPreviewRadius() const = 0; 
+	virtual void SetSnapPreviewRadius(int nVal) = 0; 
+
+	// --- Snap Radius management
+	// This is the radius of the circular area around the mouse cursor in which 
+	// the highlighted snap point has to fall into for the transformed entity to 
+	// be automatically snapped to that snap point. Note that the entity will 
+	// always snap to the highlighted snap point when the user starts or finishes 
+	// transforming the entity
+	virtual int GetSnapRadius() const = 0; 
+	virtual void SetSnapRadius(int nVal) = 0; 
+
+	// --- Rubber-Band Display management methods
+	// These methods allow the toggling of the rubber-band display when the user
+	// transforms an entity. Note that the rubber-band is not displayed during
+	// object creation
+	virtual bool GetDisplaySnapRubberBand() const = 0;
+	virtual void SetDisplaySnapRubberBand(bool bDisplayRubberBand) = 0;
+
+	// Use Axis Constraint
+	virtual void SetAxisConstraint(BOOL bUseAxisConstraint) = 0;
+
+	// Read-Only access to the SnapInfo data. 
+	// Returns false if it could not satisfy the request
+	virtual bool GetSnapInfo(SnapInfo& si) const = 0;
+
+	// Returns a pointer to the Osnap object that is current override snap object
+	// The active snap type of the returned snap object is the exact snap override type.
+	// NULL is returned when the snap system is not in override mode.
+	virtual const Osnap* GetSnapOverride() const = 0;
+
+	// for MXS exposure
+	virtual void SetAFlag(int mask) = 0;
+	virtual void ClearAFlag(int mask) = 0;
+	virtual void setactive(boolean state) = 0;
+	virtual void sethilite(Point3 col) = 0;
+	virtual Point3 gethilite() = 0;
+	virtual void setmarksize(int val) = 0;
+	virtual int getmarksize() = 0;
+	virtual BOOL SnapToFrozen() = 0;
+	virtual void SetSnapToFrozen(BOOL state = TRUE) = 0;
+	virtual Osnap* Enumerate(int FLAGS) const = 0;
+	virtual DWORD GetSnapFlags() = 0;
+
+	CoreExport static IOsnapManager7* GetInstance();
+};
+
+#endif// _IOMAN_H