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/************************************************************************
*
* $Id: node.h,v 1.4 2004/09/04 07:38:02 jon Exp $
*
* Copyright 2003 Jon Trulson under the ARTISTIC LICENSE. (See LICENSE).
***********************************************************************/
#ifndef _NODE_H
#define _NODE_H
/* node proc return values */
#define NODE_OK TRUE
#define NODE_EXIT FALSE
#define NODE_ERR ERR
/* menu/screen node */
typedef struct _scr_node {
int (*display)(dspConfig_t *); /* display routine */
int (*idle)(void); /* idle routine */
int (*input)(int ch); /* input routine */
struct _scr_node *next; /* sub-nodes */
} scrNode_t;
/* some nodes are called from other, multiple nodes, so we need
a way for them to know what node to return to when complete */
#define DSP_NODE_CP 1 /* cockpit node */
#define DSP_NODE_MENU 2 /* main menu */
#define DSP_NODE_PLAYBMENU 3 /* playback menu */
#define DSP_NODE_PLAYB 4 /* watching during playback */
void setNode(scrNode_t *node);
scrNode_t *getTopNode(void);
void setONode(scrNode_t *node);
scrNode_t *getTopONode(void);
#endif /* _NODE_H */
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