200 lines
6.8 KiB
C
200 lines
6.8 KiB
C
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/* $Id: console_i.h,v 1.1 2008-04-01 08:50:44 vsc Exp $
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Part of SWI-Prolog
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Author: Jan Wielemaker and Anjo Anjewierden
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E-mail: jan@swi.psy.uva.nl
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WWW: http://www.swi-prolog.org
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Copyright (C): 1985-2002, University of Amsterdam
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Include file to share stuff inside this library.
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/*******************************
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* HISTORY *
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*******************************/
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typedef struct _history
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{ int size; /* size of the history */
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int tail; /* oldest position */
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int head; /* newest position */
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int current; /* for retrieval */
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TCHAR ** lines; /* the lines */
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} history, *History;
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/*******************************
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* CONSOLE DATA *
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*******************************/
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#define ANSI_MAX_ARGC 10 /* Ansi-escape sequence argv */
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#define MAXPROMPT 80 /* max size of prompt */
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#define OQSIZE 4096 /* output queue size */
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#define MAX_USER_VALUES 10 /* max user data-handles */
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typedef struct lqueued
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{ TCHAR * line; /* Lines in queue */
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struct lqueued* next; /* Next in queue */
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} lqueued, *LQueued;
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typedef struct
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{ TCHAR * text; /* the storage */
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unsigned short size; /* #characters in line */
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unsigned adjusted : 1; /* line has been adjusted? */
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unsigned changed : 1; /* line needs redraw */
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unsigned softreturn : 1; /* wrapped line */
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} text_line, *TextLine;
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typedef struct
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{ uintptr_t data; /* the data itself */
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RlcFreeDataHook hook; /* call when destroying console */
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} user_data;
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#define RLC_MAGIC 0x3b75df1e /* magic number to verify */
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typedef struct
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{ int magic;
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int height; /* number of lines in buffer */
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int width; /* #characters ler line */
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int first; /* first line of ring */
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int last; /* last line of ring */
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int caret_x; /* cursor's x-position */
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int caret_y; /* its line */
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int window_start; /* start line of the window */
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int window_size; /* #lines on the window */
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TextLine lines; /* the actual lines */
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int sel_unit; /* SEL_CHAR, SEL_WORD, SEL_LINE */
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int sel_org_line; /* line origin of the selection */
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int sel_org_char; /* char origin of the selection */
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int sel_start_line; /* starting line for selection */
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int sel_start_char; /* starting char for selection */
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int sel_end_line; /* ending line for selection */
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int sel_end_char; /* ending char for selection */
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int cmdstat; /* for parsing ANSI escape */
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int argstat; /* argument status ANSI */
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int argc; /* argument count for ANSI */
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int argv[ANSI_MAX_ARGC]; /* argument vector for ANSI */
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int scaret_x; /* saved-caret X */
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int scaret_y; /* saved-caret Y */
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HWND window; /* MS-Window window handle */
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int has_focus; /* Application has the focus */
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HFONT hfont; /* Windows font handle */
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int fixedfont; /* Font is fixed */
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COLORREF foreground; /* Foreground (text) color */
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COLORREF background; /* Background color */
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COLORREF sel_foreground; /* Selection foreground */
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COLORREF sel_background; /* Selection background */
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int cw; /* character width */
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int ch; /* character height */
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int cb; /* baseline */
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int changed; /* changes to the whole screen */
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int sb_lines; /* #lines the scrollbar thinks */
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int sb_start; /* start-line scrollbar thinks */
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int caret_is_shown; /* is caret in the window? */
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TCHAR current_title[RLC_TITLE_MAX]; /* window title */
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/* status */
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rlc_console_attr * create_attributes; /* Creation attributes */
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TCHAR *regkey_name; /* last part of key */
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int win_x; /* window top-left corner */
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int win_y; /* window top-left corner */
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/* output queue */
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TCHAR output_queue[OQSIZE]; /* The output queue */
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int output_queued; /* # characters in the queue */
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struct
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{ TCHAR *line; /* buffered line */
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size_t length; /* length of line */
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size_t given; /* how much we passed */
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} read_buffer;
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/* input queuing */
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int imode; /* input mode */
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int imodeswitch; /* switching imode */
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RlcQueue queue; /* input stream */
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LQueued lhead; /* line-queue head */
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LQueued ltail; /* line-queue tail */
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TCHAR promptbuf[MAXPROMPT]; /* Buffer for building prompt */
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TCHAR prompt[MAXPROMPT]; /* The prompt */
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int promptlen; /* length of the prompt */
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int closing; /* closing status */
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int modified_options; /* OPT_ */
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history history; /* history for this console */
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/* Thread handles */
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HANDLE console_thread; /* I/O thread */
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HANDLE application_thread; /* The application I work for */
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DWORD console_thread_id; /* I/O thread id */
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DWORD application_thread_id;
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HWND kill_window; /* window in app thread for destroy */
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user_data values[MAX_USER_VALUES]; /* associated user data */
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} rlc_data, *RlcData;
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/*******************************
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* DATA *
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*******************************/
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extern RlcData _rlc_stdio; /* global default console */
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/*******************************
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* FUNCTIONS *
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*******************************/
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extern void rlc_assert(const TCHAR *msg);
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int rlc_at_head_history(RlcData b);
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const TCHAR * rlc_bwd_history(RlcData b);
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const TCHAR * rlc_fwd_history(RlcData b);
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void rlc_get_mark(rlc_console c, RlcMark mark);
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void rlc_goto_mark(rlc_console c, RlcMark mark,
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const TCHAR *data, size_t offset);
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void rlc_erase_from_caret(rlc_console c);
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void rlc_putchar(rlc_console c, int chr);
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TCHAR * rlc_read_screen(rlc_console c,
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RlcMark from, RlcMark to);
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void rlc_update(rlc_console c);
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const TCHAR * rlc_prompt(rlc_console c, const TCHAR *prompt);
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void rlc_clearprompt(rlc_console c);
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/*******************************
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* INLINE FUNCTIONS *
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*******************************/
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#ifdef _DEBUG
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#define assert(g) if ( !(g) ) rlc_assert(_T(#g))
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#else
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#define assert(g) (void)0
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#endif
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static __inline RlcData
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rlc_get_data(rlc_console c)
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{ if ( c )
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{ RlcData b = c;
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assert(b->magic == RLC_MAGIC);
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if ( b->magic == RLC_MAGIC )
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{ return b;
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}
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return NULL;
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}
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return _rlc_stdio;
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}
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