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/******************************************************************************
*
* Copyright (c) 1994-1999 Palm Computing, Inc. or its subsidiaries.
* All rights reserved.
*
* File: List.h
*
* Description:
* This file defines list structures and routines.
*
* History:
* November 3, 1994 Created by Roger Flores
* Name Date Description
* ---- ---- -----------
* bob 2/9/99 fixed const stuff
*
*****************************************************************************/
#ifndef __LIST_H__
#define __LIST_H__
#include <PalmTypes.h>
#include <CoreTraps.h>
#include <Event.h>
#define noListSelection -1
//-------------------------------------------------------------------
// List structures
//-------------------------------------------------------------------
typedef struct {
UInt16 usable :1; // set if part of ui
UInt16 enabled :1; // set if interactable (not grayed out)
UInt16 visible :1; // set if drawn
UInt16 poppedUp :1; // set if choices displayed in popup win.
UInt16 hasScrollBar :1; // set if the list has a scroll bar
UInt16 search :1; // set if incremental search is enabled
UInt16 reserved :2;
} ListAttrType;
// Load data callback routine prototype
typedef void ListDrawDataFuncType (Int16 itemNum, RectangleType *bounds,
Char **itemsText);
typedef ListDrawDataFuncType *ListDrawDataFuncPtr;
typedef struct ListType {
UInt16 id;
RectangleType bounds;
ListAttrType attr;
Char * *itemsText;
Int16 numItems; // number of choices in the list
Int16 currentItem; // currently display choice
Int16 topItem; // top item visible when poped up
FontID font; // font used to draw list
UInt8 reserved;
WinHandle popupWin; // used only by popup lists
ListDrawDataFuncPtr drawItemsCallback; // 0 indicates no function
} ListType;
typedef ListType *ListPtr;
//-------------------------------------------------------------------
// List routines
//-------------------------------------------------------------------
#ifdef __cplusplus
extern "C" {
#endif
extern void LstDrawList (ListType *listP)
SYS_TRAP(sysTrapLstDrawList);
extern void LstEraseList (ListType *listP)
SYS_TRAP(sysTrapLstEraseList);
extern Int16 LstGetSelection (const ListType *listP)
SYS_TRAP(sysTrapLstGetSelection);
extern Char * LstGetSelectionText (const ListType *listP, Int16 itemNum)
SYS_TRAP(sysTrapLstGetSelectionText);
extern Boolean LstHandleEvent (ListType *listP, const EventType *eventP)
SYS_TRAP(sysTrapLstHandleEvent);
extern void LstSetHeight (ListType *listP, Int16 visibleItems)
SYS_TRAP(sysTrapLstSetHeight);
extern void LstSetPosition (ListType *listP, Coord x, Coord y)
SYS_TRAP(sysTrapLstSetPosition);
extern void LstSetSelection (ListType *listP, Int16 itemNum)
SYS_TRAP(sysTrapLstSetSelection);
extern void LstSetListChoices (ListType *listP, Char **itemsText, Int16 numItems)
SYS_TRAP(sysTrapLstSetListChoices);
extern void LstSetDrawFunction (ListType *listP, ListDrawDataFuncPtr func)
SYS_TRAP(sysTrapLstSetDrawFunction);
extern void LstSetTopItem (ListType *listP, Int16 itemNum)
SYS_TRAP(sysTrapLstSetTopItem);
extern void LstMakeItemVisible (ListType *listP, Int16 itemNum)
SYS_TRAP(sysTrapLstMakeItemVisible);
extern Int16 LstGetNumberOfItems (const ListType *listP)
SYS_TRAP(sysTrapLstGetNumberOfItems);
extern Int16 LstPopupList (ListType *listP)
SYS_TRAP(sysTrapLstPopupList);
extern Boolean LstScrollList(ListType *listP, WinDirectionType direction, Int16 itemCount)
SYS_TRAP(sysTrapLstScrollList);
extern Int16 LstGetVisibleItems (const ListType *listP)
SYS_TRAP(sysTrapLstGetVisibleItems);
extern Err LstNewList (void **formPP, UInt16 id,
Coord x, Coord y, Coord width, Coord height,
FontID font, Int16 visibleItems, Int16 triggerId)
SYS_TRAP(sysTrapLstNewList);
#ifdef __cplusplus
}
#endif
#endif // __LIST_H__
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