mirror of
https://github.com/ptitSeb/Serious-Engine
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77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
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/*
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* LWSDK Header File
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* Copyright 1999, NewTek, Inc.
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*
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* LWHANDLER.H -- LightWave Instance Handlers
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*
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* This header contains the definition of a basic handler. A handler
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* is a special kind of server that manages a persistent instance.
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*/
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#ifndef LWSDK_HANDLER_H
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#define LWSDK_HANDLER_H
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#include <lwio.h>
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#include <lwxpanel.h>
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/*
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* Handlers of all types have a class name of the form "*Handler", and
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* take a handler struct as the local data to the Activate function.
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* The Activate function fills in the handler fields and returns.
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*/
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typedef struct st_LWInstanceFuncs {
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void *priv;
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LWInstance (*create) (void *priv, void *context, LWError *);
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void (*destroy) (LWInstance);
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LWError (*copy) (LWInstance, LWInstance from);
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LWError (*load) (LWInstance, const LWLoadState *);
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LWError (*save) (LWInstance, const LWSaveState *);
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const char * (*descln) (LWInstance);
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} LWInstanceFuncs;
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typedef struct st_LWHandler {
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LWInstanceFuncs *inst;
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} LWHandler;
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/*
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* User interfaces for handlers are defined as separate servers with
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* class names of the form "*Interface". Their Activate functions take
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* an LWInterface structure which they should fill in. The 'panel'
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* field can be set to point to the non-modal controls for one or more
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* instances. Otherwise the 'options' function should be set to open a
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* modal dialog for a single instance. The 'command' function can be
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* set to provide batch commands to operate on instances.
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*
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* Technically this is version 2 of the plugin interface, but for
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* compatibility with legacy UI code, which checks against the handler
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* class API version, all versions less than LWINTERFACE_VERSION will be considered version
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* 1 API functions. New plugins MUST return AFUNC_BADVERSION when called
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* with a version less than LWINTERFACE_VERSION.
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*/
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#define LWINTERFACE_VERSION 4
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typedef struct st_LWInterface {
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LWInstance inst;
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LWXPanelID panel;
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LWError (*options) (LWInstance);
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LWError (*command) (LWInstance, const char *);
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} LWInterface;
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/*
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* Because the UI for instances can now operate in a non-modal fashion,
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* handlers need to inform the host when their instance data have changed
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* in a way that will affect the host. They can do this by getting the
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* "Instance Update" global function. This can be called at any point
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* with the class name of the instance and the instance pointer itself,
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* and the host will respond to any changes.
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*/
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#define LWINSTUPDATE_GLOBAL "Instance Update"
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typedef void LWInstUpdate (const char *className, LWInstance);
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#endif
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