/*-----------------------------------------------------------------------------
 * ListTree	A list widget that displays a file manager style tree
 *
 * Copyright (c) 1996 Robert W. McMullen
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * Author: Rob McMullen <rwmcm@mail.ae.utexas.edu>
 *         http://www.ae.utexas.edu/~rwmcm
 */

#ifndef _ListTree_H
#define _ListTree_H

#include <Xm/Xm.h>

#define _ListTree_WIDGET_VERSION	3.0

#define XtNmargin                            "margin"
#define XtNindent                            "indent"
#define XtNspacing                           "spacing"
#define XtNhorizontalSpacing                 "horizontalSpacing"
#define XtNverticalSpacing                   "verticalSpacing"
#define XtNlineWidth                         "lineWidth"
#define XtNhighlightPath                     "highlightPath"
#define XtNclickPixmapToOpen                 "clickPixmapToOpen"
#define XtNdoIncrementalHighlightCallback    "incCallback"
#define XtNbranchPixmap                      "branchPixmap"
#define XtNbranchOpenPixmap                  "branchOpenPixmap"
#define XtNleafPixmap                        "leafPixmap"
#define XtNleafOpenPixmap                    "leafOpenPixmap"
#define XtNactivateCallback                  "activateCallback"
#define XtNhighlightCallback                 "highlightCallback"
#define XtNmenuCallback                      "menuCallback"
#define XtNdestroyItemCallback               "destroyItemCallback"
#define XtNcreateItemCallback                "createItemCallback"
#define XtNlistMode                          "listMode"
#define XtCListMode                          "ListMode"

#define XtBRANCH     1
#define XtLEAF       2
#define XtMENU       3
#define XtDESTROY    4
#define XtCREATE     5

#ifdef __cplusplus
extern "C" {
#endif

extern WidgetClass listtreeWidgetClass;

typedef struct _ListTreeClassRec *ListTreeWidgetClass;
typedef struct _ListTreeRec      *ListTreeWidget;

typedef enum _ListTreeItemType {
   ItemDetermineType = 0,
   ItemBranchType = XtBRANCH,
   ItemLeafType = XtLEAF
} ListTreeItemType;

typedef struct _ListTreeItem {
  Boolean   open;
  Boolean   highlighted;
  char      *text;
  int       length;
  int       x,y,ytext;
  int       count;
  Dimension height;
  ListTreeItemType type;
  struct _ListTreeItem *parent,*firstchild,*prevsibling,*nextsibling;
  Pixmap    openPixmap,closedPixmap;
  XtPointer user_data;
} ListTreeItem;

typedef struct _ListTreeReturnStruct {
  int          reason;
  ListTreeItem *item;
  ListTreeItem **path;
  int          count;
  Boolean      open;
} ListTreeReturnStruct;

typedef struct _ListTreeMultiReturnStruct {
  ListTreeItem **items;
  int          count;
} ListTreeMultiReturnStruct;

typedef struct _ListTreeActivateStruct {
  int          reason;
  ListTreeItem *item;
  Boolean      open;
  ListTreeItem **path;
  int          count;
} ListTreeActivateStruct;

typedef struct _ListTreeItemReturnStruct {
  int          reason;
  ListTreeItem *item;
  XEvent       *event;
} ListTreeItemReturnStruct;


#ifdef __cplusplus
};
#endif

/*
** Public function declarations
*/
#if __STDC__ || defined(__cplusplus)
#define P_(s) s
#else
#define P_(s) ()
#endif


/* ListTree.c */
void ListTreeRefresh P_((Widget w));
void ListTreeRefreshOff P_((Widget w));
void ListTreeRefreshOn P_((Widget w));
ListTreeItem *ListTreeAdd P_((Widget w, ListTreeItem *parent, char *string));
ListTreeItem *ListTreeAddType P_((Widget w, ListTreeItem *parent, char *string, ListTreeItemType type));
ListTreeItem *ListTreeAddBranch P_((Widget w, ListTreeItem *parent, char *string));
ListTreeItem *ListTreeAddLeaf P_((Widget w, ListTreeItem *parent, char *string));
void ListTreeSetItemPixmaps P_((Widget w, ListTreeItem *item, Pixmap openPixmap, Pixmap closedPixmap));
void ListTreeRenameItem P_((Widget w, ListTreeItem *item, char *string));
ListTreeItem* ListTreeDelete P_((Widget w, ListTreeItem *item));
int ListTreeDeleteChildren P_((Widget w, ListTreeItem *item));
void ListTreeUnchainItem P_((Widget w, ListTreeItem *item));
int ListTreeReparent P_((Widget w, ListTreeItem *item, ListTreeItem *newparent));
int ListTreeReparentChildren P_((Widget w, ListTreeItem *item, ListTreeItem *newparent));
int ListTreeOrderSiblings P_((Widget w, ListTreeItem *item));
int ListTreeOrderChildren P_((Widget w, ListTreeItem *item));
ListTreeItem *ListTreeFindSiblingName P_((Widget w, ListTreeItem *item, char *name));
ListTreeItem *ListTreeFindChildName P_((Widget w, ListTreeItem *item, char *name));
ListTreeMultiReturnStruct* ListTreeBuildSearchList P_((Widget w, ListTreeItem *item, char *name, int reset));
void ListTreeHighlightItem P_((Widget w, ListTreeItem *item, Boolean notify));
ListTreeItem *ListTreeFirstItem P_((Widget w));
ListTreeItem *ListTreeFirstChild P_((ListTreeItem *item));
ListTreeItem *ListTreeNextSibling P_((ListTreeItem *item));
ListTreeItem *ListTreePrevSibling P_((ListTreeItem *item));
ListTreeItem *ListTreeParent P_((ListTreeItem *item));
void ListTreeOpenLikeTree P_((Widget w, ListTreeItem *new, ListTreeItem *old));
void ListTreeOpenToLevel P_((Widget w, ListTreeItem *item, int level));
void ListTreeCloseToLevel P_((Widget w, ListTreeItem *item, int level));
void ListTreeOpenNode P_((Widget w, ListTreeItem *item));
void ListTreeCloseNode P_((Widget w, ListTreeItem *item));
void ListTreeMakeItemVisible P_((Widget w, ListTreeItem *item));
void ListTreeGetHighlighted P_((Widget w,ListTreeMultiReturnStruct *ret));
void ListTreeSetHighlighted P_((Widget w,ListTreeItem **items, int count,
                                 Boolean clear));
#ifdef USE_RDD
void ListTreeHighlightDrop P_((Widget w, XEvent *event, String *params, Cardinal *num_params));
ListTreeReturnStruct *ListTreeGetDrop P_((Widget w));
#endif

Widget XmCreateScrolledListTree P_((Widget parent, char *name, Arg *args, Cardinal count));

#endif /* _ListTree_H */