fileIOMsgCmd/fileIOMsgCmd.cpp

fileIOMsgCmd/fileIOMsgCmd.cpp
//-
// ==========================================================================
// Copyright 1995,2006,2008 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk
// license agreement provided at the time of installation or download,
// or which otherwise accompanies this software in either electronic
// or hard copy form.
// ==========================================================================
//+
/*
file : fileIOMsgCmd.cpp
class: PreLoad
----------------------
This is an example to demonstrate the usages of :
MString MFileIO::beforeImportFile(MStatus*);
MString MFileIO::beforeOpenFile(MStatus*);
MString MFileIO::beforeExportFile(MStatus*);
MString MFileIO::beforeReferenceFile(MStatus*);
Return value of MS::kSuccess indicates correct value returns
*/
#include <maya/MFnPlugin.h>
#include <maya/MSceneMessage.h>
#include <maya/MStatus.h>
#include <maya/MPxCommand.h>
#include <maya/MMessage.h>
#include <maya/MGlobal.h>
#include <maya/MFileIO.h>
#include <maya/MCallbackIdArray.h>
class PreLoad : public MPxCommand
{
public:
// callback functions.
static void preOpenFunc(void* clientData);
static void preImportFunc(void* clientData);
static void preSaveFunc(void* clientData);
static void preExportFunc(void* clientData);
static void preReferenceFunc(void* clientData);
virtual MStatus doIt( const MArgList& );
static void *creator();
static MCallbackIdArray& getCallbackIds();
private:
//callback ids .. used later for removal
static MCallbackIdArray ids;
};
MCallbackIdArray PreLoad::ids;
// This is the call back function at Pre Import stage.
void PreLoad::preOpenFunc(void* clientData)
{
MString msg = "FILE TO BE OPENED IS ";
// check the status and then append accordingly
msg += ( status == MS::kSuccess) ? file : "ERROR: Could not be retrieved" ;
}
// This is the call back function at Pre Import stage.
void PreLoad::preImportFunc(void* clientData)
{
MString msg = "PRE IMPORT FILE IS ";
// check the status and then append accordingly
msg += ( status == MS::kSuccess) ? file : "ERROR: Could not be retrieved" ;
}
// This is the call back function at Pre Save stage.
void PreLoad::preSaveFunc(void* clientData)
{
MString msg = "FILE TO BE SAVED IS";
//check the status and then append accordingly
msg += ( status == MS::kSuccess) ? file : "ERROR: File name could not be retrieved" ;
}
// This is the call back function at Pre Export stage.
void PreLoad::preExportFunc(void* clientData)
{
MString msg = "FILE TO BE EXPORTED IS";
// check the status and then append accordingly
msg += ( status == MS::kSuccess) ? file : "ERROR: File name could not be retrieved" ;
}
// This is the call back function at Pre Reference stage.
void PreLoad::preReferenceFunc(void* clientData)
{
MString msg = "FILE TO BE REFERENCED IS";
//check the status and then append accordingly
msg += ( status == MS::kSuccess) ? file : "ERROR: File name could not be retrieved" ;
}
MStatus PreLoad::doIt( const MArgList& )
{
MGlobal::displayInfo("PLUGIN LOADED");
// add the function call backs
// and store call back ids for removal later
ids.append(MSceneMessage::addCallback ( MSceneMessage::kBeforeReference, preReferenceFunc )) ;
return status ;
}
void* PreLoad::creator()
{
return new PreLoad;
}
MCallbackIdArray& PreLoad::getCallbackIds()
{
return ids;
}
// standard initialize and uninitialize functions
MStatus initializePlugin(MObject obj)
{
MFnPlugin pluginFn(obj, PLUGIN_COMPANY, "6.0");
MStatus status;
status = pluginFn.registerCommand("fileIOMsgCmd", PreLoad::creator);
if( !status)
status.perror("register Command failed");
return status;
}
MStatus uninitializePlugin ( MObject obj )
{
MFnPlugin pluginFn(obj);
//remove call backs
MMessage::removeCallbacks(PreLoad::getCallbackIds());
status = pluginFn.deregisterCommand( "fileIOMsgCmd");
return status;
}