| 1 | /* |
| 2 | * tixTList.h -- |
| 3 | * |
| 4 | * This header file defines the data structures used by the tixTList |
| 5 | * widget. |
| 6 | * |
| 7 | * Copyright (c) 1996, Expert Interface Technologies |
| 8 | * |
| 9 | * See the file "license.terms" for information on usage and redistribution |
| 10 | * of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #ifndef _TIX_TLIST_H_ |
| 15 | #define _TIX_TLIST_H_ |
| 16 | |
| 17 | #ifndef _TIX_INT_H_ |
| 18 | #include "tixInt.h" |
| 19 | #endif |
| 20 | |
| 21 | #include "tkVMacro.h" |
| 22 | |
| 23 | #define TIX_X 0 |
| 24 | #define TIX_Y 1 |
| 25 | |
| 26 | typedef struct ListEntry { |
| 27 | struct ListEntry * next; |
| 28 | Tix_DItem * iPtr; |
| 29 | Tk_Uid state; |
| 30 | Arg data; /* user data field */ |
| 31 | int size[2]; |
| 32 | unsigned int selected : 1; |
| 33 | } ListEntry; |
| 34 | |
| 35 | typedef struct ListRow { |
| 36 | ListEntry * chPtr; |
| 37 | int size[2]; |
| 38 | int numEnt; |
| 39 | } ListRow; |
| 40 | |
| 41 | /* |
| 42 | * A data structure of the following type is kept for each |
| 43 | * widget managed by this file: |
| 44 | */ |
| 45 | typedef struct ListStruct { |
| 46 | Tix_DispData dispData; |
| 47 | |
| 48 | Tcl_Command widgetCmd; /* Token for button's widget command. */ |
| 49 | |
| 50 | /* |
| 51 | * Information used when displaying widget: |
| 52 | */ |
| 53 | int width, height; /* For app programmer to request size */ |
| 54 | |
| 55 | /* |
| 56 | * Information used when displaying widget: |
| 57 | */ |
| 58 | |
| 59 | /* Border and general drawing */ |
| 60 | int borderWidth; /* Width of 3-D borders. */ |
| 61 | int selBorderWidth; /* Width of 3-D borders for selected items */ |
| 62 | int relief; /* Indicates whether window as a whole is |
| 63 | * raised, sunken, or flat. */ |
| 64 | Tk_3DBorder border; /* Used for drawing the 3d border. */ |
| 65 | Tk_3DBorder selectBorder; /* Used for selected background. */ |
| 66 | XColor *normalFg; /* Normal foreground for text. */ |
| 67 | XColor *normalBg; /* Normal background for text. */ |
| 68 | XColor *selectFg; /* Color for drawing selected text. */ |
| 69 | |
| 70 | /* GC and stuff */ |
| 71 | GC backgroundGC; /* GC for drawing background. */ |
| 72 | GC selectGC; /* GC for drawing selected background. */ |
| 73 | GC anchorGC; /* GC for drawing dotted anchor highlight. */ |
| 74 | TixFont font; /* Default font used by the DItems. */ |
| 75 | |
| 76 | /* Text drawing */ |
| 77 | Cursor cursor; /* Current cursor for window, or None. */ |
| 78 | |
| 79 | /* For highlights */ |
| 80 | int highlightWidth; /* Width in pixels of highlight to draw |
| 81 | * around widget when it has the focus. |
| 82 | * <= 0 means don't draw a highlight. */ |
| 83 | XColor *highlightColorPtr; /* Color for drawing traversal highlight. */ |
| 84 | GC highlightGC; /* For drawing traversal highlight. */ |
| 85 | |
| 86 | /* default pad and gap values */ |
| 87 | int padX, padY; |
| 88 | |
| 89 | Tk_Uid selectMode; /* Selection style: single, browse, multiple, |
| 90 | * or extended. This value isn't used in C |
| 91 | * code, but the Tcl bindings use it. */ |
| 92 | Tk_Uid state; /* State can only be normal or disabled. */ |
| 93 | Tix_LinkList entList; |
| 94 | |
| 95 | int numRowAllocd; |
| 96 | int numRow; |
| 97 | ListRow * rows; |
| 98 | |
| 99 | ListEntry * seeElemPtr; /* The current item to "see" */ |
| 100 | ListEntry * anchor; /* The current anchor item */ |
| 101 | ListEntry * active; /* The current active item */ |
| 102 | ListEntry * dropSite; /* The current drop site */ |
| 103 | ListEntry * dragSite; /* The current drop site */ |
| 104 | |
| 105 | /* |
| 106 | * Commands |
| 107 | */ |
| 108 | LangCallback *command; /* The command when user double-clicks */ |
| 109 | LangCallback *browseCmd; /* The command to call when the selection |
| 110 | * changes. */ |
| 111 | LangCallback *sizeCmd; /* The command to call when the size of |
| 112 | * the listbox changes. E.g., when the user |
| 113 | * add/deletes elements. Useful for |
| 114 | * auto-scrollbar geometry managers */ |
| 115 | |
| 116 | /* These options control how the items are arranged on the list */ |
| 117 | Tk_Uid orientUid; /* Can be "vertical" or "horizontal" */ |
| 118 | int packMode[2]; /* is row and column packed */ |
| 119 | int numMajor[2]; /* num of rows and columns */ |
| 120 | int itemSize[2]; /* horizontal and vertical size of items, -1 |
| 121 | * means natural size */ |
| 122 | |
| 123 | /* Info for laying out */ |
| 124 | int maxSize[2]; /* max size of all elements in X and Y, (they |
| 125 | * do not need to be the same element, may be |
| 126 | * invalid according to mode */ |
| 127 | char *takeFocus; /* Value of -takefocus option; not used in |
| 128 | * the C code, but used by keyboard traversal |
| 129 | * scripts. Malloc'ed, but may be NULL. */ |
| 130 | |
| 131 | int serial; /* this number is incremented before each time |
| 132 | * the widget is redisplayed */ |
| 133 | |
| 134 | Tix_DItemInfo * diTypePtr; /* Default item type */ |
| 135 | Tix_IntScrollInfo scrollInfo[2]; |
| 136 | unsigned int redrawing : 1; |
| 137 | unsigned int resizing : 1; |
| 138 | unsigned int hasFocus : 1; |
| 139 | unsigned int isVertical : 1; |
| 140 | } TixTListWidget; |
| 141 | |
| 142 | typedef TixTListWidget WidgetRecord; |
| 143 | typedef TixTListWidget * WidgetPtr; |
| 144 | |
| 145 | #endif /* _TIX_TLIST_H_ */ |