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// ------------------------------------------------------------------
// GoldED+
// Copyright (C) 1990-1999 Odinn Sorensen
// Copyright (C) 1999-2000 Alexander S. Aganichev
// ------------------------------------------------------------------
// This program 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 of the
// License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307 USA
// ------------------------------------------------------------------
// $Id$
// ------------------------------------------------------------------
// The Internal Editor (IE).
// ------------------------------------------------------------------
# ifdef __GNUG__
# pragma interface "geedit.h"
# endif
// ------------------------------------------------------------------
// Screen coordinate models
// ------------------------------------------------------------------
//
// 00 <20> <> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> 01
// 01 Msg# : 02
// 02 From : 03
// 03 To : 04
// 04 Subj : 05
// 05 <20> <> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> 06
// 06 00 EDIT_MINROW 07 EDIT_MIN_ROW
// 07 01 08
// 08 02 09
// 09 03 10
// 10 04 11
// 11 05 12
// 12 06 13
// 13 07 14
// 14 08 15
// 15 09 16
// 16 10 17
// 17 11 18
// 18 12 19
// 19 13 10
// 10 14 21
// 21 15 22
// 22 16 23
// 23 17 EDIT_MAXROW 24 EDIT_MAX_ROW
// 24 <20> GoldED xxxx (statusline) 25
// <20> <20> <20>
// <20> <20> <20> <> <EFBFBD> <EFBFBD> <EFBFBD> one-based old-style coord
// <20> <20> <> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> editor window corrdinates
// <20> <> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> <EFBFBD> actual screen coordinates
//
// ------------------------------------------------------------------
// ------------------------------------------------------------------
// Defines
# define EDIT_BUFLEN 256
# define EDIT_PARABUFLEN 2048
# define EDIT_UNDO_CHAR 0x00000010U
# define EDIT_UNDO_INS_CHAR 0x00000011U
# define EDIT_UNDO_DEL_CHAR 0x00000012U
# define EDIT_UNDO_OVR_CHAR 0x00000014U
# define EDIT_UNDO_TEXT 0x00001000U
# define EDIT_UNDO_DEL_TEXT 0x00001100U
# define EDIT_UNDO_CUT_TEXT 0x00001200U
# define EDIT_UNDO_INS_TEXT 0x00001400U
# define EDIT_UNDO_WRAP_TEXT 0x00001800U
# define EDIT_UNDO_LINE 0x00100000U
# define EDIT_UNDO_DEL_LINE 0x00110000U
# define EDIT_UNDO_NEW_LINE 0x00120000U
# define EDIT_UNDO_PUSH_LINE 0x00140000U
# define EDIT_UNDO_POP_LINE 0x00180000U
# define EDIT_UNDO_ORPHAN_LINE 0x00190000U
# define EDIT_UNDO_VOID 0x00000000U
# define EDIT_UNDO_TYPE 0x00101010U
# define EDIT_UNDO_ACTION 0x001F1F1FU
# define LAST_LINE 0x20000000U
# define PREV_LINE 0x40000000U
# define BATCH_MODE 0x80000000U
# define NO_VALUE 0xFFFFFFFFU
// ------------------------------------------------------------------
// Globals
extern int CFG__editquotewrap ;
extern Line * Edit__killbuf ;
extern Line * Edit__pastebuf ;
extern Path Edit__exportfilename ;
// ------------------------------------------------------------------
// Reality check define and function
# ifdef NDEBUG
# define _test_halt(__t)
# define _test_haltab(__t, __a, __b)
# else
# define _test_halt(__t) if(__t) { debugtest(#__t, 0, 0, __FILE__, __LINE__, false); }
# define _test_haltab(__t, __a, __b) if(__t) { debugtest(#__t, __a, __b, __FILE__, __LINE__, true); }
# endif
// ------------------------------------------------------------------
// Undo data structures
class text_item {
public :
uint col ; // Begining offset in the .text string
uint len ; // Text length
__extension__ char text [ 0 ] ; // Text string itself
text_item ( uint __col , uint __len ) : col ( __col ) , len ( __len ) { }
void * operator new ( size_t size , uint text_len = 0 ) { return malloc ( sizeof ( text_item ) + size + text_len ) ; }
void operator delete ( void * ptr ) { free ( ptr ) ; }
} ;
// ----------------------------------------------------------------
union data_rec {
text_item * text_ptr ;
Line * line_ptr ;
void * void_ptr ;
char char_int ;
} ;
struct col_rec {
uint num ;
uint sav ;
} ;
// ----------------------------------------------------------------
class UndoItem {
static UndoItem * * last_item ;
friend class UndoStack ;
public :
UndoItem * prev ;
Line * line ; // Cursor line
col_rec col ; // Cursor column
uint pcol ; // After undo move cursor to pcol, prow
uint prow ; //
uint action ; // Undo action
data_rec data ; // Undo data
UndoItem ( ) { this - > prev = * last_item ; }
~ UndoItem ( ) { * last_item = this - > prev ; }
} ;
// ----------------------------------------------------------------
class IEclass ;
class UndoStack {
IEclass * editor ;
uint & row ;
uint & col ;
uint & pcol ;
uint & prow ;
uint & minrow ;
uint & maxrow ;
uint & thisrow ;
Line * & currline ;
bool & undo_ready ;
public :
UndoItem * last_item ;
bool undo_enabled ;
UndoStack ( IEclass * this_editor ) ;
~ UndoStack ( ) ;
bool FixPushLine ( Line * __line ) ;
void PushItem ( uint action , Line * __line = NULL , uint __col = NO_VALUE , uint __len = NO_VALUE ) ;
void PlayItem ( ) ;
} ;
// ------------------------------------------------------------------
// Internal Editor Class
class IEclass : public Container {
public :
gwindow editwin ; // window
protected :
// ----------------------------------------------------------------
// Editor window data
int win_mincol ; // First column
int win_minrow ; // First row
int win_maxcol ; // Last column
int win_maxrow ; // Last row
int win_border ; // Border type
int win_hasborder ; // 1 == window has a border, 0 == no border
// ----------------------------------------------------------------
// Window-relative minimum/maximum values
uint mincol ;
uint minrow ;
uint maxcol ;
uint maxrow ;
// ----------------------------------------------------------------
// Cursor coordinates
uint col ;
uint row ;
uint pcol ;
uint prow ;
uint ccol ;
uint crow ;
// ----------------------------------------------------------------
// Undo stuff
friend class UndoStack ;
UndoStack * Undo ;
long batch_mode ;
bool undo_ready ;
// ----------------------------------------------------------------
// Misc.
int chartyped ;
Line * currline ;
int done ;
int insert ;
int marginquotes ;
int margintext ;
int msgmode ;
GMsg * msgptr ;
int quitnow ;
uint thisrow ;
char * unfinished ;
int blockcol ;
int selecting ;
// ----------------------------------------------------------------
// Internal helper functions
void clreol ( int __col = - 1 , int __row = - 1 ) ;
void cursoroff ( ) ;
void cursoron ( ) ;
void deleteline ( bool zapquotesbelow = false ) ;
int dispchar ( vchar __ch , int attr = - 1 ) ;
void dispins ( ) ;
void displine ( Line * __line , uint __row ) ;
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void dispstring ( const char * __string , uint __row , int attr = - 1 , Line * line = NULL ) ;
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int downoneline ( uint __row ) ;
void editexport ( Line * __exportline , int __endat ) ;
Line * findanchor ( ) ;
Line * findfirstline ( ) ;
Line * findtopline ( ) ;
void getthisrow ( Line * __currline ) ;
void gotorowcol ( uint __col , uint __row ) ;
int handlekey ( gkey __key ) ;
void editimport ( Line * __line , char * __filename , bool imptxt = false ) ;
void imptxt ( char * __filename , bool imptxt = false ) ;
void insertchar ( char __ch ) ;
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Line * insertlinebelow ( Line * __currline , const char * __text = NULL , long __batch_mode = 0 ) ;
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int isempty ( Line * __line = NULL ) ;
void killkillbuf ( ) ;
void killpastebuf ( ) ;
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void prints ( int wrow , int wcol , int atr , const char * str ) ;
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int reflowok ( char * __qstr ) ;
void refresh ( Line * __currline , uint __row ) ;
void savefile ( int __status ) ;
void scrolldown ( int __scol , int __srow , int __ecol , int __erow , int __lines = 1 ) ;
void scrollup ( int __scol , int __srow , int __ecol , int __erow , int __lines = 1 ) ;
void setcolor ( Line * __line ) ;
void setlinetype ( Line * __line ) ;
void statusline ( ) ;
void windowclose ( ) ;
void windowopen ( ) ;
Line * wrapit ( Line * * __currline , uint * __curr_col , uint * __curr_row , int __display = YES ) ;
Line * wrapdel ( Line * * __currline , uint * __curr_col , uint * __curr_row , int __display = YES ) ;
Line * wrapins ( Line * * __currline , uint * __curr_col , uint * __curr_row , int __display = YES ) ;
# ifndef NDEBUG
void debugtest ( char * __test , int __a , int __b , char * __file , int __line , int __values ) ;
# endif
void Buf2Clip ( ) ;
void Clip2Buf ( ) ;
public :
// ----------------------------------------------------------------
// Constructor and destructor
IEclass ( int __scol , int __ecol , int __srow , int __erow , int __border ) ;
~ IEclass ( ) ;
// ----------------------------------------------------------------
// Function to start the editor
int Start ( int __mode , uint * __position , GMsg * __msg ) ;
// ----------------------------------------------------------------
// User key functions
void Abort ( ) ;
void AskExit ( ) ;
void BlockAnchor ( ) ;
void BlockCopy ( ) ;
void BlockCut ( bool just_delete = false ) ;
void BlockPaste ( ) ;
void BlockDel ( Line * _anchor ) ;
void ClearDeleteBuf ( ) ;
void ClearPasteBuf ( ) ;
void CopyAboveChar ( ) ;
void DelChar ( ) ;
void DeleteEOL ( ) ;
void DelLeft ( ) ;
void DelLine ( ) ;
void DelLtWord ( ) ;
void DelRtWord ( ) ;
void DosShell ( ) ;
void DupLine ( ) ;
void ExitMsg ( ) ;
void ExportText ( ) ;
void GoBegLine ( ) ;
void GoBotLine ( ) ;
void GoBotMsg ( ) ;
void GoDown ( ) ;
void GoEOL ( ) ;
void GoLeft ( ) ;
void GoPgDn ( ) ;
void GoPgUp ( ) ;
void GoRight ( ) ;
void GoTopLine ( ) ;
void GoTopMsg ( ) ;
void GoUp ( ) ;
void GoWordLeft ( ) ;
void GoWordRight ( ) ;
void Header ( ) ;
void ImportQuotebuf ( ) ;
void ImportText ( ) ;
void LoadFile ( ) ;
void LookupCursor ( ) ;
void LookupDest ( ) ;
void LookupOrig ( ) ;
void Newline ( ) ;
void QuitNow ( ) ;
void Reflow ( ) ;
void ReTab ( ) ;
void SaveFile ( ) ;
void SaveMsg ( ) ;
void Soundkill ( ) ;
void SpellCheck ( ) ;
void Tab ( ) ;
void ToggleCase ( ) ;
void ToggleInsert ( ) ;
void ToLower ( ) ;
void ToUpper ( ) ;
void UnDelete ( bool before = true ) ;
void ZapQuoteBelow ( ) ;
// ----------------------------------------------------------------
} ;
// ------------------------------------------------------------------
void Edit__killpastebuf ( void ) ;
inline void IEclass : : killpastebuf ( ) { Edit__killpastebuf ( ) ; }
// ------------------------------------------------------------------