src/ListTreeP.h

   1 /*-----------------------------------------------------------------------------
   2  * ListTree     A list widget that displays a file manager style tree
   3  *
   4  * Copyright (c) 1996 Robert W. McMullen
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with this library; if not, write to the Free
  18  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  *
  20  *
  21  * Author: Rob McMullen <rwmcm@mail.ae.utexas.edu>
  22  *         http://www.ae.utexas.edu/~rwmcm
  23  */
  24
  25 #ifndef _ListTreeP_H
  26 #define _ListTreeP_H
  27
  28 #include <Xm/Xm.h>
  29 #include <Xm/XmP.h>
  30 #include <Xm/DrawP.h>
  31 #include <Xm/PrimitiveP.h>
  32 #include <Xm/ScrollBar.h>
  33 #include <Xm/ScrolledW.h>
  34 #include <Xm/DragDrop.h>
  35
  36 #include "ListTree.h"
  37
  38 /* LessTif definitions that are convenient for Motif */
  39 #ifndef Prim_HighlightThickness
  40 #define Prim_HighlightThickness(w) \
  41     (((XmPrimitiveWidget)(w))->primitive.highlight_thickness)
  42 #endif
  43
  44 #ifndef Prim_ShadowThickness
  45 #define Prim_ShadowThickness(w) \
  46     (((XmPrimitiveWidget)(w))->primitive.shadow_thickness)
  47 #endif
  48
  49 #ifndef Prim_TopShadowGC
  50 #define Prim_TopShadowGC(w) \
  51     (((XmPrimitiveWidget)(w))->primitive.top_shadow_GC)
  52 #endif
  53
  54 #ifndef Prim_BottomShadowGC
  55 #define Prim_BottomShadowGC(w) \
  56     (((XmPrimitiveWidget)(w))->primitive.bottom_shadow_GC)
  57 #endif
  58
  59
  60 #define ListTreeRET_ALLOC 10
  61
  62 #define TIMER_CLEAR 0
  63 #define TIMER_SINGLE 1
  64 #define TIMER_DOUBLE 2
  65 #define TIMER_WAITING 3
  66
  67 typedef struct {
  68   int dummy;                    /* keep compiler happy with dummy field */
  69 } ListTreeClassPart;
  70
  71 typedef struct _ListTreeClassRec {
  72   CoreClassPart core_class;
  73   XmPrimitiveClassPart primitive_class;
  74   ListTreeClassPart ListTree_class;
  75 } ListTreeClassRec;
  76
  77 extern ListTreeClassRec listtreeClassRec;
  78
  79 typedef struct {
  80   Pixmap bitmap;
  81   Pixmap pix;
  82   int width, height;
  83   int xoff;
  84 } Pixinfo;
  85
  86 typedef struct {
  87   /* Public stuff ... */
  88   long foreground_pixel;
  89   XFontStruct *font;
  90   int NumItems;
  91   Dimension HSpacing;
  92   Dimension VSpacing;
  93 /*      Dimension       LabelSpacing; */
  94   Dimension Margin;
  95   Dimension Indent;
  96   Pixinfo Open;
  97   Pixinfo Closed;
  98   Pixinfo Leaf;
  99   Pixinfo LeafOpen;
 100   Dimension LineWidth;
 101   Boolean HighlightPath;
 102   Boolean ClickPixmapToOpen;
 103   Boolean DoIncrementalHighlightCallback;
 104
 105   XtCallbackList HighlightCallback;
 106   XtCallbackList ActivateCallback;
 107   XtCallbackList MenuCallback;
 108   XtCallbackList DestroyItemCallback;
 109   XtCallbackList DropCallback;
 110
 111   /* Private stuff ... */
 112   GC drawGC;
 113   GC eraseGC;
 114   GC eorGC;
 115   GC highlightGC;
 116   Pixinfo ItemPix;              /* temporary storage for GetItemPix */
 117   int exposeTop, exposeBot;
 118   int pixWidth;
 119   int preferredWidth, preferredHeight;
 120   ListTreeItem *first,          /* always points to a top level entry */
 121    *highlighted, *drop_highlighted;
 122
 123   XtIntervalId timer_id;        /* timer for double click test */
 124   ListTreeItem *timer_item;     /* item to make sure both clicks */
 125   /* occurred on the same item */
 126   int timer_type;               /* flag for type of click that just happened */
 127   int timer_y;
 128   int timer_x;
 129   int multi_click_time;
 130
 131   ListTreeItem **ret_item_list;
 132   int ret_item_alloc;
 133
 134   Boolean Refresh;
 135   Boolean HasFocus;
 136
 137     /* New stuff for maintaining its own scrolling state */
 138   Widget mom;                   /* scrolled window */
 139   Widget hsb;                   /* horizontal scrollbar */
 140   Widget vsb;                   /* vertical scrollbar */
 141   Dimension viewX;
 142   Dimension viewY;
 143   Dimension viewWidth;
 144   Dimension viewHeight;
 145   int XOffset;
 146   int hsbPos;
 147   int hsbMax;
 148
 149   int lastXOffset;
 150   int topItemPos;               /* position of topItem in itemCount */
 151   int bottomItemPos;            /* last position drawn in window */
 152   int lastItemPos;              /* last value of topItempos */
 153   ListTreeItem *topItem;        /* first visible item on screen */
 154   int itemCount;                /* total number of open ListTreeItems */
 155   Dimension itemHeight;
 156   Dimension maxPixHeight;
 157   int visibleCount;             /* number currently visible on screen */
 158   Boolean recount;
 159
 160 } ListTreePart;
 161
 162 typedef struct _ListTreeRec {
 163   CorePart core;
 164   XmPrimitivePart primitive;
 165   ListTreePart list;
 166 } ListTreeRec;
 167
 168
 169 #endif /* _ListTreeP_H */