95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
#include "PlugObject.h"
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#include "Errors.h"
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extern globals g;
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/*** LOAD EDITOR ***/
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OSStatus LoadEditor( ResourceObjectPtr resource, ConstStr63Param libName )
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{
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// create editor window structure and save resource to be edited into it
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OSStatus error = noErr;
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PlugObjectPtr plug = (PlugObjectPtr) NewPtrClear( sizeof(PlugObject) ); // bug: this function calls itself, so memory leak may exist here
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if( !plug ) return memFullErr; // another bug: should check if plug already has associated PlugObject (ie it is loaded already) - globalRefCon won't work
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// load editor's library into memory
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CFragConnectionID connID = null;
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Ptr mainAddr = null;
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Str255 errMessage;
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error = GetSharedLibrary( libName, kPowerPCCFragArch, kLoadCFrag, &connID, &mainAddr, errMessage );
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DebugError( errMessage );
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if( error )
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{
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if( EqualString( libName, "\pHex Editor", true, true ) )
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{
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DisposePtr( (Ptr) plug ); // only dispose if was created just now
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DisplayError( "\pNo editors are available for this resource!", "\pI suggest you reinstall the program." );
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return error;
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}
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else if( EqualString( libName, "\pTemplate Editor", true, true ) )
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{
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error = LoadEditor( resource, "\pHex Editor" );
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return error;
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}
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else
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{
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error = LoadEditor( resource, "\pTemplate Editor" );
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if( error )
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error = LoadEditor( resource, "\pHex Editor" );
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return error;
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}
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}
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plug->SetConnectionID( connID );
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// find and call InitInstance symbol
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InitPlugProcPtr symAddr;
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CFragSymbolClass symClass;
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error = FindSymbol( connID, "\pPlug_InitInstance", (Ptr *) &symAddr, &symClass );
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if( error )
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{
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DisposePtr( (Ptr) plug ); // only dispose if was created just now
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if( g.debug ) DebugError( "\pPlug_InitInstance() could not be found." );
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else DisplayError( "\pCannot load up requested editor.", "\pPlease obtain an update from the plug-in's author." );
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return error;
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}
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error = (* symAddr)( plug, resource );
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if( error )
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{
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DisposePtr( (Ptr) plug ); // only dispose if was created just now
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DebugError( "\pPlug_InitInstance() returned an error. This is quite normal for the Template Editor, thus if no XXXX Editor exists, and no template is found, you will see this dialog, then a hex editor appear." );
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}
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return error;
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}
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/*** UNLOAD EDITOR ***/
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OSStatus UnloadEditor( PlugObjectPtr plug )
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{
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#pragma unused( plug )
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OSStatus error = noErr;
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CFragConnectionID connID = plug->GetConnectionID();
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// find and call DisposeEditor symbol
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/* DisposePlugProcPtr symAddr;
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CFragSymbolClass symClass;
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error = FindSymbol( connID, "\pPlug_DisposeEditor", (Ptr *) &symAddr, &symClass );
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if( error ) return error;
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(* symAddr)( plug );
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*/
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// close connection to editor
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error = CloseConnection( &connID );
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plug->SetConnectionID( null );
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return error;
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}
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/**************************/
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/* CLASS ACCESSOR METHODS */
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/**************************/
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/*** ACCESSORS ***/
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void PlugObject::SetRefCon( UInt32 value ) { refcon = value; }
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UInt32 PlugObject::GetRefCon( void ) { return refcon; }
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CFragConnectionID PlugObject::GetConnectionID( void ) { return connID; }
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void PlugObject::SetConnectionID( CFragConnectionID newID ) { connID = newID; }
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WindowObjectPtr PlugObject::GetWindowObject( void ) { return windowObj; }
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void PlugObject::SetWindowObject( WindowObjectPtr newWindowObj ) { windowObj = newWindowObj; }
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ResourceObjectPtr PlugObject::GetResourceObject( void ) { return resourceObj; }
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void PlugObject::SetResourceObject( ResourceObjectPtr newResourceObj ) { resourceObj = newResourceObj; } |