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/*-----------------------------------------------------------------------------
* 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 _ListTreeP_H
#define _ListTreeP_H
#include <Xm/Xm.h>
#include <Xm/XmP.h>
#include <Xm/DrawP.h>
#include <Xm/PrimitiveP.h>
#include <Xm/ScrollBar.h>
#include <Xm/ScrolledW.h>
#include "ListTree.h"
/* LessTif definitions that are convenient for Motif */
#ifndef Prim_HighlightThickness
#define Prim_HighlightThickness(w) \
(((XmPrimitiveWidget)(w))->primitive.highlight_thickness)
#endif
#ifndef Prim_ShadowThickness
#define Prim_ShadowThickness(w) \
(((XmPrimitiveWidget)(w))->primitive.shadow_thickness)
#endif
#ifndef Prim_TopShadowGC
#define Prim_TopShadowGC(w) \
(((XmPrimitiveWidget)(w))->primitive.top_shadow_GC)
#endif
#ifndef Prim_BottomShadowGC
#define Prim_BottomShadowGC(w) \
(((XmPrimitiveWidget)(w))->primitive.bottom_shadow_GC)
#endif
#define ListTreeRET_ALLOC 10
#define TIMER_CLEAR 0
#define TIMER_SINGLE 1
#define TIMER_DOUBLE 2
#define TIMER_WAITING 3
/*
** DND support and debugging
*/
/* #define DEBUG */
/* #define DND */
typedef struct {
int dummy; /* keep compiler happy with dummy field */
} ListTreeClassPart;
typedef struct _ListTreeClassRec {
CoreClassPart core_class;
XmPrimitiveClassPart primitive_class;
ListTreeClassPart ListTree_class;
} ListTreeClassRec;
extern ListTreeClassRec listtreeClassRec;
typedef struct {
Pixmap bitmap;
Pixmap pix;
int width, height;
int xoff;
} Pixinfo;
typedef struct {
ListTreeWidget list_tree;
ListTreeItem *item;
} DNDInfo;
typedef struct {
/* Public stuff ... */
long foreground_pixel;
XFontStruct *font;
int NumItems;
Dimension HSpacing;
Dimension VSpacing;
/* Dimension LabelSpacing; */
Dimension Margin;
Dimension Indent;
Pixinfo Open;
Pixinfo Closed;
Pixinfo Leaf;
Pixinfo LeafOpen;
Dimension LineWidth;
Boolean HighlightPath;
Boolean ClickPixmapToOpen;
Boolean DoIncrementalHighlightCallback;
XtCallbackList HighlightCallback;
XtCallbackList ActivateCallback;
XtCallbackList MenuCallback;
XtCallbackList DestroyItemCallback;
XtCallbackList CreateItemCallback;
Boolean ListMode;
/* Private stuff ... */
GC drawGC;
GC eraseGC;
GC eorGC;
GC highlightGC;
Pixinfo ItemPix; /* temporary storage for GetItemPix */
int exposeTop, exposeBot;
int pixWidth;
int preferredWidth, preferredHeight;
ListTreeItem *first, /* always points to a top level entry */
*highlighted, *drop_highlighted;
XtIntervalId timer_id; /* timer for double click test */
ListTreeItem *timer_item; /* item to make sure both clicks */
/* occurred on the same item */
int timer_type; /* flag for type of click that just happened */
int timer_y;
int timer_x;
int multi_click_time;
ListTreeItem **ret_item_list;
int ret_item_alloc;
Boolean Refresh;
Boolean HasFocus;
/* New stuff for maintaining its own scrolling state */
Widget mom; /* scrolled window */
Widget hsb; /* horizontal scrollbar */
Widget vsb; /* vertical scrollbar */
Dimension viewX;
Dimension viewY;
Dimension viewWidth;
Dimension viewHeight;
int XOffset;
int hsbPos;
int hsbMax;
int lastXOffset;
int topItemPos; /* position of topItem in itemCount */
int bottomItemPos; /* last position drawn in window */
int lastItemPos; /* last value of topItempos */
ListTreeItem *topItem; /* first visible item on screen */
int itemCount; /* total number of open ListTreeItems */
Dimension itemHeight;
Dimension maxPixHeight;
int visibleCount; /* number currently visible on screen */
Boolean recount;
} ListTreePart;
typedef struct _ListTreeRec {
CorePart core;
XmPrimitivePart primitive;
ListTreePart list;
} ListTreeRec;
#endif /* _ListTreeP_H */
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