/* edit.h -- Data structures for the editor (buffers, marks, etc...) Copyright (C) 1993, 1994 John Harper This file is part of Jade. Jade is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. Jade 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 General Public License for more details. You should have received a copy of the GNU General Public License along with Jade; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _EDIT_H #define _EDIT_H /* * Line structure -- an array of these is in the TX->tx_Lines */ typedef struct LINE { u_char *ln_Line; long ln_Strlen; /* includes '\0' */ } LINE; /* * Structure to uniquely identify a character position */ typedef struct POS { long pos_Col, pos_Line; } POS; #define POS_EQUAL_P(s,e) \ (((s)->pos_Line == (e)->pos_Line) && ((s)->pos_Col == (e)->pos_Col)) #define POS_GREATER_P(s,e) \ (((s)->pos_Line > (e)->pos_Line) \ || (((s)->pos_Line == (e)->pos_Line) && ((s)->pos_Col > (e)->pos_Col))) #define POS_GREATER_EQUAL_P(s,e) \ (((s)->pos_Line > (e)->pos_Line) \ || (((s)->pos_Line == (e)->pos_Line) && ((s)->pos_Col >= (e)->pos_Col))) #define POS_LESS_P(s,e) \ (((s)->pos_Line < (e)->pos_Line) \ || (((s)->pos_Line == (e)->pos_Line) && ((s)->pos_Col < (e)->pos_Col))) #define POS_LESS_EQUAL_P(s,e) \ (((s)->pos_Line < (e)->pos_Line) \ || (((s)->pos_Line == (e)->pos_Line) && ((s)->pos_Col <= (e)->pos_Col))) /* * Each bookmark has one of these in the tx_Marks list */ typedef struct _Mark { u_char mk_Type; bool mk_Resident; /* When the file is resident this node is linked into its tx_Marks list, otherwise it's in a list of all non-resident marks. */ struct _Mark *mk_Next; /* next allocated MARK */ struct _Mark *mk_NextAlloc; VALUE mk_Pos; /* This union tells me where to look for the file this mark is in. if (mk_Resident == 0) then the file (mk_File.name) has to be loaded and used. Otherwise (mk_File.tx) is used. */ union { VALUE name; /* this TX should not be marked for gc */ struct _TX *tx; } mk_File; } Mark; /* * A buffer, strangely called `TX' */ typedef struct _TX { u_char tx_Type; u_char tx_Flags; u_char tx_Pad1, tx_Pad2; struct _TX *tx_Next; Mark *tx_MarkChain; LINE *tx_Lines; long tx_NumLines; VALUE tx_FileName; VALUE tx_BufferName; VALUE tx_ModeName; VALUE tx_MinorModeNameList; VALUE tx_MinorModeNameString; long tx_Changes; long tx_AutoSaveInterval; /* seconds between saves */ long tx_LastSaveTime; /* time at last save (auto or user) */ long tx_LastSaveChanges; /* changes at last save (any type) */ long tx_ProperSaveChanges; /* changes at last `proper' save */ long tx_TabSize; /* Section of buffer which may have changed since last refresh. */ POS tx_ModStart, tx_ModEnd; /* How many more lines in the above area than at the last refresh. */ long tx_ModDelta; /* `tx_Changes' at last refresh. */ long tx_LastChanges; VALUE tx_LocalVariables; /* alist of (SYMBOL . VALUE) */ VALUE tx_GlyphTable; /* Undo information */ VALUE tx_UndoList; VALUE tx_ToUndoList; VALUE tx_UndoneList; /* Saved state for buffers which are not being displayed. */ POS tx_SavedCPos; POS tx_SavedWPos; POS tx_SavedBlockPos[2]; char tx_SavedBlockStatus; } TX; /* For tx_Flags */ #define TXFF_RDONLY 1 /* No modifications to file */ #define TXFF_SPECIAL 2 /* No mod flag, buffer never killed. */ #define TXFF_REFRESH_ALL 4 /* *All* buffer has changed. */ #define TXFF_NO_UNDO 8 /* No recording of undo information */ /* * Each window is like this */ typedef struct _VW { u_char vw_Type; u_char vw_Flags; u_char vw_Pad1, vw_Pad2; struct _VW *vw_Next; TX *vw_Tx; /* Data that the window-system needs. */ VW_WindowSys vw_WindowSys; /* Cursor positioning data. */ POS vw_CursorPos; u_long vw_LastCursorOffset; /* number of glyphs from col 0 */ POS vw_LastCursorPos; u_long vw_LastCursorChanges; TX *vw_LastCursorTx; POS vw_DisplayOrigin; #define vw_StartLine vw_DisplayOrigin.pos_Line #define vw_StartCol vw_DisplayOrigin.pos_Col POS vw_BlockS, vw_BlockE; /* 0=block marked, 1=start marked, 2=end marked, -1=none marked */ char vw_BlockStatus; u_char *vw_Message; u_long vw_MessageLen; u_long vw_LastClickMics; int vw_MaxX, vw_MaxY; int vw_XStartPix, vw_YStartPix; int vw_XEndPix, vw_YEndPix; int vw_XWidthPix, vw_YHeightPix; short vw_XStep, vw_YStep; short vw_XStepRatio, vw_YStepRatio; /* Position at which to draw the separator line and the base-line for the message text. */ int vw_MessageLineY; int vw_MessageFontY; VALUE vw_FontName; short vw_FontStart; short vw_FontX, vw_FontY; TX *vw_LastRefTx; POS vw_LastDisplayOrigin; short vw_DeferRefresh; u_short vw_MaxScroll; #ifndef NOSCRLBAR ScrollBar vw_SBar; #endif /* List of buffers accessible in this window. This is not used by the C code at all; access is via the `buffer-list' variable. */ VALUE vw_BufferList; } VW; /* For vw_Flags */ #define VWFF_RECTBLOCKS 1 /* mark rectangular blocks */ #define VWFF_FORCE_REFRESH 2 /* full redraw next time */ #define VWFF_REFRESH_BLOCK 4 /* redraw the block */ #define VWFF_REFRESH_STATUS 8 /* redraw the status line */ #define VWFF_SLEEPING 16 /* window is iconified */ #define VWFF_MESSAGE 32 /* a message is currently displayed */ #define VWFF_STATUS_CURS 64 /* cursor is draw at end of status msg */ #define CURS_ON 1 #define CURS_OFF 0 #endif /* _EDIT_H */