#include <mxsPlugin.h>

Inheritance diagram for MSPluginSimpleMod:

Public Member Functions
	MSPluginSimpleMod ()
	MSPluginSimpleMod (MSPluginClass *pc, BOOL loading)
	~MSPluginSimpleMod ()
void	DeleteThis ()
HWND	AddRollupPage (HINSTANCE hInst, MCHAR dlgTemplate, DLGPROC dlgProc, MCHAR title, LPARAM param=0, DWORD flags=0, int category=ROLLUP_CAT_STANDARD)
void	DeleteRollupPage (HWND hRollup)
IRollupWindow *	GetRollupWindow ()
ReferenceTarget *	get_delegate ()
void	GetClassName (MSTR &s)
	Retrieves the name of the plugin class.
Class_ID	ClassID ()
	Retrieves a constant that uniquely identifies the plugin class.
SClass_ID	SuperClassID ()
	Retrieves a constant representing the type of the plugin.
void	FreeCaches ()
int	NumSubs ()
Animatable *	SubAnim (int i)
MSTR	SubAnimName (int i)
int	NumParamBlocks ()
IParamBlock2 *	GetParamBlock (int i)
IParamBlock2 *	GetParamBlockByID (BlockID id)
void *	GetInterface (ULONG id)
	Inherited from Animatable.
RefResult	NotifyRefChanged (Interval changeInt, RefTargetHandle hTarget, PartID &partID, RefMessage message)
	Receives and responds to messages.
int	NumRefs ()
	Returns the total number of references this ReferenceMaker can hold.
RefTargetHandle	GetReference (int i)
	Returns the 'i-th' reference.
void	RefDeleted ()
void	RefAdded (RefMakerHandle rm)
RefTargetHandle	Clone (RemapDir &remap)
	This method is used by 3ds Max to clone an object.
IOResult	Save (ISave *isave)
IOResult	Load (ILoad *iload)
void	NotifyTarget (int msg, RefMakerHandle rm)
MCHAR *	GetObjectName ()
void	BeginEditParams (IObjParam ip, ULONG flags, Animatable prev)
void	EndEditParams (IObjParam ip, ULONG flags, Animatable next)
Deformer &	GetDeformer (TimeValue t, ModContext &mc, Matrix3 &mat, Matrix3 &invmat)
void	InvalidateUI ()
Interval	GetValidity (TimeValue t)
BOOL	GetModLimits (TimeValue t, float &zmin, float &zmax, int &axis)
Static Public Member Functions
static RefTargetHandle	create (MSPluginClass *pc, BOOL loading)
Public Attributes
IObjParam *	ip
Point3Value *	vec
Point3Value *	extent
Point3Value *	min
Point3Value *	max
Point3Value *	center
BOOL	busy
TimeValue	last_time
Point3	last_in
Point3	last_out
Static Public Attributes
static CRITICAL_SECTION	def_sync
static BOOL	setup_sync
Protected Member Functions
virtual void	SetReference (int i, RefTargetHandle rtarg)
	Stores a ReferenceTarget as its 'i-th' reference`.

Constructor & Destructor Documentation

MSPluginSimpleMod ( ) [inline]

{ vec = extent = min = max = center = NULL; busy = FALSE; last_time = TIME_NegInfinity; }

MSPluginSimpleMod	(	MSPluginClass *	pc,
		BOOL	loading
	)

~MSPluginSimpleMod ( )

Member Function Documentation

static RefTargetHandle create	(	MSPluginClass *	pc,
		BOOL	loading
	)		`[static]`

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void DeleteThis ( ) [inline]

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Reimplemented from MSPlugin.

Reimplemented in MSSimpleModXtnd.

{  MSPlugin::DeleteThis(); }

HWND AddRollupPage	(	HINSTANCE	hInst,
		MCHAR *	dlgTemplate,
		DLGPROC	dlgProc,
		MCHAR *	title,
		LPARAM	param = `0`,
		DWORD	flags = `0`,
		int	category = `ROLLUP_CAT_STANDARD`
	)		`[virtual]`

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Implements MSPlugin.

void DeleteRollupPage ( HWND hRollup ) [virtual]

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Implements MSPlugin.

IRollupWindow* GetRollupWindow ( ) [virtual]

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Implements MSPlugin.

ReferenceTarget* get_delegate ( ) [inline, virtual]

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Implements MSPlugin.

Reimplemented in MSSimpleModXtnd.

{ return NULL; }  // no delegate

void GetClassName ( MSTR & s ) [inline, virtual]

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Retrieves the name of the plugin class.

This name is usually used internally for debugging purposes. For Material plug-ins this method is used to put up the material "type" name in the Material Editor.

Parameters:

s	Reference to a string filled in with the name of the plugin class

Reimplemented from ReferenceTarget.

Reimplemented in MSSimpleModXtnd.

{ s = MSTR(pc->class_name->to_string()); }

Class_ID ClassID ( ) [inline, virtual]

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Retrieves a constant that uniquely identifies the plugin class.

This method must return the unique ID for the plugin class. If two ClassIDs conflict, the system will only load the first conflicting one it finds. A program (gencid.exe) is provided to generate unique class id values.

Returns:: A class id that uniquely identifies a plugin class

See also:: Class ClassID, List of Class IDs.

Reimplemented from Animatable.

Reimplemented in MSSimpleModXtnd.

{ return pc->class_id; }

SClass_ID SuperClassID ( ) [inline, virtual]

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Retrieves a constant representing the type of the plugin.

Returns:: A super class id that uniquely identifies the type (category) of the plugin. Note that several plugin classes can be of the same type, thus return the same super class id. Plugins are uniquely identified by their class ids. List of Super Class IDs.

See also:: SClass_ID

Reimplemented from Modifier.

Reimplemented in MSSimpleModXtnd.

{ return pc->sclass_id; }

void FreeCaches ( ) [inline, virtual]

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Remarks:: This is called to delete any item that can be rebuilt. For example, the procedural sphere object has a mesh that it caches. It could call Mesh::FreeAll() on the mesh from this method. This will free the vertex/face/uv arrays. If the sphere is ever evaluated again it can just rebuild the mesh. If an object (like a sphere) has modifiers applied to it, and those modifiers are not animated, then the result of the pipeline is cached in the node. So there is no reason for the sphere to also have a cache of its representation. Therefore when this method is called, the sphere can free the data of the mesh.

Default Implementation:: {}

Reimplemented from Animatable.

Reimplemented in MSSimpleModXtnd.

{ }

int NumSubs ( ) [inline, virtual]

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Remarks:: The system uses a virtual array mechanism to access the sub-anims of a plug-in. This method returns the total number of sub-anims maintained by the plug-in. If a plug-in is using a parameter block to manage its parameters it should just return 1 for all the parameters directed by the parameter block.

Returns:: The number of sub-anims used by the plug-in.

Default Implementation:: { return 0; }

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

{ return pblocks.Count() + 2; }

Animatable* SubAnim ( int i ) [virtual]

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Remarks:: This method returns a pointer to the 'i-th' sub-anim. If a plug-in is using a parameter block to manage all its parameters it should just return a pointer to the parameter block itself from this method. This method may return NULL so developers need to check the return value before calling other sub anim methods (such as SubAnimName()).

Parameters:

i	This is the index of the sub-anim to return.

Default Implementation:: { return NULL };

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

MSTR SubAnimName ( int i ) [virtual]

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Remarks:: This method returns the name of the 'i-th' sub-anim to appear in track view. The system has no idea what name to assign to the sub-anim (it only knows it by the virtual array index), so this method is called to retrieve the name to display. Developer need to make sure the 'i-th' SubAnim() is non-NULL or this method will fail.

Parameters:

i	The index of the parameter name to return

Returns:: The name of the 'i-th' parameter.

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

int NumParamBlocks ( ) [inline, virtual]

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Remarks:: This method is available in release 3.0 and later only.

This method returns the number of ParamBlock2s in this instance.

Default Implementation:: { return 0; }

Reimplemented from Animatable.

Reimplemented in MSSimpleModXtnd.

{ return pblocks.Count(); }

IParamBlock2* GetParamBlock ( int i ) [inline, virtual]

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Remarks:: This method return 'i-th' ParamBlock2 in this instance (or NULL if not available).

Parameters:

i	The zero based index of the ParamBlock2 to return.

Default Implementation:: { return NULL; }

Reimplemented from Animatable.

Reimplemented in MSSimpleModXtnd.

{ return pblocks[i]; }

IParamBlock2* GetParamBlockByID ( BlockID id ) [inline]

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Reimplemented from MSPlugin.

Reimplemented in MSSimpleModXtnd.

{ return MSPlugin::GetParamBlockByID(id); }

void* GetInterface ( ULONG id ) [inline, virtual]

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Inherited from Animatable.

Returns a pointer to the interface.

Parameters:

id	- The id of the interface.

Returns:: A Pointer to the Interface

Reimplemented from BaseObject.

Reimplemented in MSSimpleModXtnd.

{ if (id == I_MAXSCRIPTPLUGIN) return (MSPlugin*)this; else return SimpleMod::GetInterface(id); }

RefResult NotifyRefChanged	(	Interval	changeInt,
		RefTargetHandle	hTarget,
		PartID &	partID,
		RefMessage	message
	)		`[inline, virtual]`

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Receives and responds to messages.

A plugin which makes references must implement a method to receive and respond to messages broadcast by its dependents. This is done by implementing NotifyRefChanged(). The plugin developer usually implements this method as a switch statement where each case is one of the messages the plugin needs to respond to. The Method StdNotifyRefChanged calls this, which can change the partID to new value. If it doesn't depend on the particular message& partID, it should return REF_DONTCARE.

For developer that need to update a dialog box with data about an object you reference note the following related to this method: This method may be called many times. For instance, say you have a dialog box that displays data about an object you reference. This method will get called many time during the drag operations on that object. If you updated the display every time you'd wind up with a lot of 'flicker' in the dialog box. Rather than updating the dialog box each time, you should just invalidate the window in response to the NotifyRefChanged() call. Then, as the user drags the mouse your window will still receive paint messages. If the scene is complex the user may have to pause (but not let up on the mouse) to allow the paint message to go through since they have a low priority. This is the way many windows in 3ds Max work.

Parameters:

changeInt	- This is the interval of time over which the message is active. Currently, all plug-ins will receive FOREVER for this interval.
hTarget	- This is the handle of the reference target the message was sent by. The reference maker uses this handle to know specifically which reference target sent the message.
partID	- This contains information specific to the message passed in. Some messages don't use the partID at all. See the section List of Reference Messages for more information about the meaning of the partID for some common messages.
message	- The message parameters passed into this method is the specific message which needs to be handled.

Returns:: The return value from this method is of type RefResult. This is usually REF_SUCCEED indicating the message was processed. Sometimes, the return value may be REF_STOP. This return value is used to stop the message from being propagated to the dependents of the item.

Reimplemented from SimpleMod.

                    { 
                        if (message == REFMSG_CHANGE) 
                            last_time = TIME_NegInfinity;
                        SimpleMod::NotifyRefChanged(changeInt, hTarget, partID, message);
                        return ((MSPlugin*)this)->NotifyRefChanged(changeInt, hTarget, partID, message); 
                    }

int NumRefs ( ) [virtual]

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Returns the total number of references this ReferenceMaker can hold.

The plugin implements this method to indicate the total number of of references it can make. This includes all references whether they are NULL (inactive) or non-NULL (active) at the time when this method is called. A plugin can hold a variable number of references, thus the return value of this method is not to be cached and reused by client code.

Returns:: The total number of references this plugin can hold. The default implementation is return 0.

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

RefTargetHandle GetReference ( int i ) [virtual]

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Returns the 'i-th' reference.

The plugin implements this method to return its 'i-th' reference. The plug-in simply keeps track of its references using an integer index for each one. This method is normally called by the system.

Parameters:

i	- The index of the reference to retrieve. Valid values are from 0 to NumRefs()-1.

Returns:: The reference handle of the 'i-th' reference. Note that different calls to this method with the same 'i' value can result in different reference handles being retrieved, as the plugin changes the scene objects it references as its 'i-th' reference.

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

virtual void SetReference	(	int	i,
		RefTargetHandle	rtarg
	)		`[protected, virtual]`

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Stores a ReferenceTarget as its 'i-th' reference`.

The plugin implements this method to store the reference handle passed to it as its 'i-th' reference. In its implementation of this method, the plugin should simply assign the reference handle passed in as a parameter to the member variable that holds the 'i-th' reference. Other reference handling methods such as ReferenceMaker::DeleteReference(), or ReferenceMaker::ReplaceReference() should not be called from within this method. The plugin itself or other plugins should not call this method directly. The system will call this method when a new reference is created or an existing one is replaced by calling ReferenceMaker::ReplaceReference().

Parameters:

i	- The index of the reference to store. Valid values are from 0 to NumRefs()-1.
rtarg	- The reference handle to store.

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

void RefDeleted ( ) [inline]

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Reimplemented from MSPlugin.

{ MSPlugin::RefDeleted(); }

void RefAdded ( RefMakerHandle rm ) [inline]

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Reimplemented from MSPlugin.

{ MSPlugin::RefAdded( rm); }

RefTargetHandle Clone ( RemapDir & remap ) [virtual]

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This method is used by 3ds Max to clone an object.

See also:

CloneRefHierarchy(), class RemapDir This method is called by 3ds Max to have the plugin clone itself. The plug-in's implementation of this method should copy both the data structure and all the data residing in the data structure of this reference target. The plugin should clone all its references as well. Also, the plug-in's implementation of this method must call BaseClone(). In order for classes derived from this class to clone cleanly, the Clone method should just create the new instance, and then call an implementation of BaseClone that clones the references and copies any other necessary data. For example:

            class MyDerivedPlugin
                : public MyBasePlugin
            {
                const int MY_REFERENCE = 1;

                ReferenceTarget* Clone(RemapDir& remap)
                {
                    ReferenceTarget* result = new MyDerivedPlugin();
                    BaseClone(this, result, remap);
                    return result;
                }

                void BaseClone(ReferenceTarget* from, ReferenceTarget* to, RemapDir& remap)
                {
                    if (!to || !from || from == to)
                        return;    
                    MyBasePlugin::BaseClone(from, to, remap);
                    to->ReplaceReference(MY_REFERENCE, remap->CloneRef(from->GetReference(MY_REFERENCE)));
                }
            };

This method should not be directly called by plug-ins. Instead, either RemapDir::CloneRef() or CloneRefHierachy() should be used to perform cloning. These methods ensure that the mapping from the original object to the clone is added to the RemapDir used for cloning, which may be used during backpatch operations

Note:: See the remarks in method BaseClone() below.

Parameters:

remap - A RemapDir instance used for remapping references during a Clone.

Returns:: A pointer to the cloned item.

Reimplemented from ReferenceTarget.

Reimplemented in MSSimpleModXtnd.

IOResult Save ( ISave * isave ) [inline, virtual]

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Reimplemented from MSPlugin.

{ MSPlugin::Save(isave); return SimpleMod::Save(isave); }

IOResult Load ( ILoad * iload ) [inline]

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Reimplemented from MSPlugin.

{ MSPlugin::Load(iload); return SimpleMod::Load(iload); }

void NotifyTarget	(	int	msg,
		RefMakerHandle	rm
	)		`[inline]`

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Reimplemented from MSPlugin.

{ MSPlugin::NotifyTarget(msg, rm); }  // LAM - 9/7/01 - ECO 624

MCHAR* GetObjectName ( ) [inline, virtual]

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Returns:: the name that will appear in the history browser (modifier stack).

Reimplemented from BaseObject.

Reimplemented in MSSimpleModXtnd.

{ return pc->class_name->to_string(); }

void BeginEditParams	(	IObjParam *	ip,
		ULONG	flags,
		Animatable *	prev
	)		`[virtual]`

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Remarks:: This method is called by the system when the user may edit the item's (object, modifier, controller, etc.) parameters.

Parameters:

ip	Interface pointer. The developer can use it to call methods such as AddRollupPage(). Note that this pointer is only valid between BeginEditParams() and EndEditParams(). It should not be used outside this interval.
flags	Describe which branch of the command panel or dialog the item is being edited in. The following are possible values: BEGIN_EDIT_CREATE Indicates an item is being edited in the create branch. BEGIN_EDIT_MOTION Indicates a controller is being edited in the motion branch. BEGIN_EDIT_HIERARCHY Indicates a controller is being edited in the Pivot subtask of the hierarchy branch. BEGIN_EDIT_IK Indicates a controller is being edited in the IK subtask of the hierarchy branch. BEGIN_EDIT_LINKINFO Indicates a controller is being edited in the Link Info subtask of the hierarchy branch.
prev	Pointer to an Animatable object. This parameter may be used in the motion and hierarchy branches of the command panel. This pointer allows a plug-in to look at the ClassID of the previous item that was being edited, and if it is the same as this item, to not replace the entire UI in the command panel, but simply update the values displayed in the UI fields. This prevents the UI from 'flickering' when the current item begins its edit. For example, if you are in the motion branch and are looking at an item's PRS controller values, and then select another item that is displayed with a PRS controller, the UI will not change - only the values displayed in the fields will change. If however you selected a target camera that has a lookat controller (not a PRS controller) the UI will change because a different set of parameters need to be displayed. Note that for items that are edited in the modifier branch this field can be ignored.

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

void EndEditParams	(	IObjParam *	ip,
		ULONG	flags,
		Animatable *	next
	)		`[virtual]`

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Remarks:: This method is called when the user is finished editing an objects parameters. The system passes a flag into the EndEditParams() method to indicate if the rollup page should be removed. If this flag is TRUE, the plug-in must un-register the rollup page, and delete it from the panel.

Parameters:

ip	An interface pointer. The developer may use the interface pointer to call methods such as DeleteRollupPage().
flags	The following flag may be set: END_EDIT_REMOVEUI If TRUE, the item's user interface should be removed.
next	Animatable pointer. Can be used in the motion and hierarchy branches of the command panel. It allows a plug-in to look at the ClassID of the next item that was being edited, and if it is the same as this item, to not replace the entire UI in the command panel. Note that for items that are edited in the modifier branch this field can be ignored.

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

Deformer& GetDeformer	(	TimeValue	t,
		ModContext &	mc,
		Matrix3 &	mat,
		Matrix3 &	invmat
	)		`[virtual]`

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Remarks:: This method is used to retrieve the callback object that will handle the deformation.

Parameters:: TimeValue t

Specifies the time the modification is being performed.

ModContext &mc

A reference to the ModContext.

Matrix3& mat

A reference to a matrix that describes the space the modification is supposed to happen in. This is computed from the ModContext matrix and the controllers controlling the gizmo and center of the modifier. The plug-in developers job is simply to transform each point to be deformed by this matrix before it performs its own deformation to the point. After the modifier applies its own deformation to the point, the developer transforms the point by the inverse of this matrix (passed below).

Matrix3& invmat

This is the inverse of the matrix above. See the comment above for how this is used.

Returns:: A C++ reference to the deformer callback object.

Implements SimpleMod.

Reimplemented in MSSimpleModXtnd.

void InvalidateUI ( ) [virtual]

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Remarks:: This is called if the user interface parameters needs to be updated because the user moved to a new time. The UI controls must display values for the current time.

Example:: If the plug-in uses a parameter map for handling its UI, it may call a method of the parameter map to handle this: pmapParam->Invalidate();

If the plug-in does not use parameter maps, it should call the SetValue() method on each of its controls that display a value, for example the spinner controls. This will cause to the control to update the value displayed. The code below shows how this may be done for a spinner control. Note that ip and pblock are assumed to be initialized interface and parameter block pointers

float newval;

Interval valid=FOREVER;

TimeValue t=ip->GetTime();

// Get the value from the parameter block at the current time.

pblock->GetValue( PB_ANGLE, t, newval, valid );

// Set the value. Note that the notify argument is passed as FALSE.

// This ensures no messages are sent when the value changes.

angleSpin->SetValue( newval, FALSE );

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

Interval GetValidity ( TimeValue t ) [virtual]

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Remarks:: The SimpleMod class calls this method to retrieve the validity interval of the modifier. The modifier provides this interval by starting an interval at FOREVER and intersecting it with each of its parameters validity intervals.

Parameters:: TimeValue t

The time to compute the validity interval.

Default Implementation:: {return FOREVER;}

Returns:: The validity interval of the modifier.

See also:: The Advanced Topics section on Intervals.

Reimplemented from SimpleMod.

Reimplemented in MSSimpleModXtnd.

BOOL GetModLimits	(	TimeValue	t,
		float &	zmin,
		float &	zmax,
		int &	axis
	)		`[virtual]`

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Remarks:: If the effect can be limited (like the way bend/taper/twist/etc. can be limited) then it should specify the min and max limits and the axis that it is limited along. SimpleMod will then display the limits as part of the Gizmo. If it does not support limits then it should return FALSE or simply not implement this method.

Parameters:: TimeValue t

The time to get the limits.

float &zmin

The min limit.

float &zmax

The max limit.

int &axis

The axis that it is limited along: x=0, y=1, z=2.