418 lines
12 KiB
C++
418 lines
12 KiB
C++
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// ------------------------------------------------------------------
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// GoldED+
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// Copyright (C) 1990-1999 Odinn Sorensen
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// Copyright (C) 1999-2000 Alexander S. Aganichev
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// ------------------------------------------------------------------
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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// MA 02111-1307 USA
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// ------------------------------------------------------------------
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// $Id$
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// ------------------------------------------------------------------
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// The Internal Editor (IE).
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// ------------------------------------------------------------------
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#ifdef __GNUG__
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#pragma interface "geedit.h"
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#endif
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// ------------------------------------------------------------------
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// Screen coordinate models
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// ------------------------------------------------------------------
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//
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// 00 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 01
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// 01 Msg# : 02
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// 02 From : 03
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// 03 To : 04
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// 04 Subj : 05
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// 05 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 06
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// 06 00 EDIT_MINROW 07 EDIT_MIN_ROW
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// 07 01 08
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// 08 02 09
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// 09 03 10
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// 10 04 11
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// 11 05 12
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// 12 06 13
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// 13 07 14
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// 14 08 15
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// 15 09 16
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// 16 10 17
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// 17 11 18
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// 18 12 19
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// 19 13 10
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// 10 14 21
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// 21 15 22
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// 22 16 23
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// 23 17 EDIT_MAXROW 24 EDIT_MAX_ROW
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// 24 ÛGoldED xxxx (statusline) 25
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// ³ ³ ³
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// ³ ³ ÀÄÄÄÄ one-based old-style coord
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// ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ editor window corrdinates
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// ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ actual screen coordinates
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//
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// ------------------------------------------------------------------
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// ------------------------------------------------------------------
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// Defines
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#define EDIT_BUFLEN 256
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#define EDIT_PARABUFLEN 2048
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#define EDIT_UNDO_CHAR 0x00000010U
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#define EDIT_UNDO_INS_CHAR 0x00000011U
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#define EDIT_UNDO_DEL_CHAR 0x00000012U
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#define EDIT_UNDO_OVR_CHAR 0x00000014U
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#define EDIT_UNDO_TEXT 0x00001000U
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#define EDIT_UNDO_DEL_TEXT 0x00001100U
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#define EDIT_UNDO_CUT_TEXT 0x00001200U
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#define EDIT_UNDO_INS_TEXT 0x00001400U
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#define EDIT_UNDO_WRAP_TEXT 0x00001800U
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#define EDIT_UNDO_LINE 0x00100000U
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#define EDIT_UNDO_DEL_LINE 0x00110000U
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#define EDIT_UNDO_NEW_LINE 0x00120000U
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#define EDIT_UNDO_PUSH_LINE 0x00140000U
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#define EDIT_UNDO_POP_LINE 0x00180000U
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#define EDIT_UNDO_ORPHAN_LINE 0x00190000U
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#define EDIT_UNDO_VOID 0x00000000U
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#define EDIT_UNDO_TYPE 0x00101010U
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#define EDIT_UNDO_ACTION 0x001F1F1FU
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#define LAST_LINE 0x20000000U
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#define PREV_LINE 0x40000000U
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#define BATCH_MODE 0x80000000U
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#define NO_VALUE 0xFFFFFFFFU
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// ------------------------------------------------------------------
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// Globals
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extern Line* Edit__killbuf;
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extern Line* Edit__pastebuf;
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extern Path Edit__exportfilename;
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// ------------------------------------------------------------------
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// Reality check define and function
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#ifdef NDEBUG
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#define _test_halt(__t)
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#define _test_haltab(__t, __a, __b)
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#else
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#define _test_halt(__t) if(__t) { debugtest(#__t, 0, 0, __FILE__, __LINE__, false); }
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#define _test_haltab(__t, __a, __b) if(__t) { debugtest(#__t, __a, __b, __FILE__, __LINE__, true); }
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#endif
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// ------------------------------------------------------------------
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// Undo data structures
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class text_item {
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public:
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uint col; // Begining offset in the .text string
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uint len; // Text length
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__extension__ char text[0]; // Text string itself
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text_item(uint __col, uint __len) : col(__col), len(__len) { }
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void* operator new(size_t size, uint text_len = 0) { return malloc(sizeof(text_item) + size + text_len); }
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void operator delete(void* ptr) { free(ptr); }
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};
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// ----------------------------------------------------------------
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union data_rec {
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text_item* text_ptr;
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Line* line_ptr;
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void* void_ptr;
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char char_int;
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};
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struct col_rec {
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uint num;
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uint sav;
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};
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// ----------------------------------------------------------------
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class UndoItem {
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static UndoItem** last_item;
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friend class UndoStack;
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public:
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UndoItem* prev;
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Line* line; // Cursor line
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col_rec col; // Cursor column
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uint pcol; // After undo move cursor to pcol, prow
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uint prow; //
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uint action; // Undo action
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data_rec data; // Undo data
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UndoItem() { this->prev = *last_item; }
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~UndoItem() { *last_item = this->prev; }
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};
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// ----------------------------------------------------------------
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class IEclass;
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class UndoStack {
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IEclass* editor;
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uint& row;
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uint& col;
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uint& pcol;
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uint& prow;
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uint& minrow;
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uint& maxrow;
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uint& thisrow;
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Line*& currline;
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bool& undo_ready;
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public:
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UndoItem* last_item;
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bool undo_enabled;
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UndoStack(IEclass* this_editor);
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~UndoStack();
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bool FixPushLine(Line* __line);
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void PushItem(uint action, Line* __line = NULL, uint __col = NO_VALUE, uint __len = NO_VALUE);
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void PlayItem();
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};
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// ------------------------------------------------------------------
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// Internal Editor Class
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class IEclass : public Container {
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public:
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gwindow editwin; // window
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protected:
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// ----------------------------------------------------------------
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// Editor window data
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int win_mincol; // First column
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int win_minrow; // First row
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int win_maxcol; // Last column
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int win_maxrow; // Last row
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int win_border; // Border type
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int win_hasborder; // 1 == window has a border, 0 == no border
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// ----------------------------------------------------------------
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// Window-relative minimum/maximum values
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uint mincol;
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uint minrow;
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uint maxcol;
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uint maxrow;
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// ----------------------------------------------------------------
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// Cursor coordinates
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uint col;
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uint row;
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uint pcol;
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uint prow;
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uint ccol;
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uint crow;
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// ----------------------------------------------------------------
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// Undo stuff
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friend class UndoStack;
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UndoStack* Undo;
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long batch_mode;
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bool undo_ready;
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// ----------------------------------------------------------------
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// Misc.
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int chartyped;
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Line* currline;
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int done;
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int insert;
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int marginquotes;
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int margintext;
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int msgmode;
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GMsg* msgptr;
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int quitnow;
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uint thisrow;
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char* unfinished;
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int blockcol;
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int selecting;
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// ----------------------------------------------------------------
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// Internal helper functions
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void clreol (int __col=-1, int __row=-1);
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void cursoroff ();
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void cursoron ();
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void deleteline (bool zapquotesbelow = false);
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int dispchar (vchar __ch, int attr=-1);
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void dispins ();
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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);
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void editexport (Line* __exportline, int __endat);
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Line* findanchor ();
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Line* findfirstline ();
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Line* findtopline ();
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void getthisrow (Line* __currline);
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void gotorowcol (uint __col, uint __row);
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int handlekey (gkey __key);
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void editimport (Line* __line, char* __filename, bool imptxt = false);
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void imptxt (char* __filename, bool imptxt = false);
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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);
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void killkillbuf ();
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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);
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void refresh (Line* __currline, uint __row);
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void savefile (int __status);
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void scrolldown (int __scol, int __srow, int __ecol, int __erow, int __lines=1);
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void scrollup (int __scol, int __srow, int __ecol, int __erow, int __lines=1);
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void setcolor (Line* __line);
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void setlinetype (Line* __line);
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void statusline ();
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void windowclose ();
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void windowopen ();
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Line* wrapit (Line** __currline, uint* __curr_col, uint* __curr_row, bool __display=true);
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Line* wrapdel (Line** __currline, uint* __curr_col, uint* __curr_row, bool __display=true);
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Line* wrapins (Line** __currline, uint* __curr_col, uint* __curr_row, bool __display=true);
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#ifndef NDEBUG
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void debugtest (char* __test, int __a, int __b, char* __file, int __line, int __values);
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#endif
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void Buf2Clip ();
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void Clip2Buf ();
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public:
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// ----------------------------------------------------------------
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// Constructor and destructor
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IEclass(int __scol, int __ecol, int __srow, int __erow, int __border);
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~IEclass();
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// ----------------------------------------------------------------
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// Function to start the editor
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int Start(int __mode, uint* __position, GMsg* __msg);
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// ----------------------------------------------------------------
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// User key functions
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void Abort ();
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void AskExit ();
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void BlockAnchor ();
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void BlockCopy ();
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void BlockCut (bool just_delete = false);
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void BlockPaste ();
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void BlockDel (Line* _anchor);
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void ClearDeleteBuf ();
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void ClearPasteBuf ();
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void CopyAboveChar ();
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void DelChar ();
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void DeleteEOL ();
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void DelLeft ();
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void DelLine ();
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void DelLtWord ();
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void DelRtWord ();
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void DosShell ();
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void DupLine ();
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void ExitMsg ();
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void ExportText ();
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void GoBegLine ();
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void GoBotLine ();
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void GoBotMsg ();
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void GoDown ();
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void GoEOL ();
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void GoLeft ();
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void GoPgDn ();
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void GoPgUp ();
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void GoRight ();
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void GoTopLine ();
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void GoTopMsg ();
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void GoUp ();
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void GoWordLeft ();
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void GoWordRight ();
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void Header ();
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void ImportQuotebuf ();
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void ImportText ();
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void LoadFile ();
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void LookupCursor ();
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void LookupDest ();
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void LookupOrig ();
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void Newline ();
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void QuitNow ();
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void Reflow ();
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void ReTab ();
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void SaveFile ();
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void SaveMsg ();
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void Soundkill ();
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void SpellCheck ();
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void Tab ();
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void ToggleCase ();
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void ToggleInsert ();
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void ToLower ();
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void ToUpper ();
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void UnDelete (bool before=true);
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void ZapQuoteBelow ();
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// ----------------------------------------------------------------
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};
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// ------------------------------------------------------------------
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void Edit__killpastebuf(void);
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inline void IEclass::killpastebuf() { Edit__killpastebuf(); }
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// ------------------------------------------------------------------
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