366 lines
7.2 KiB
C
366 lines
7.2 KiB
C
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/* stream.c - IO stream implementation
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* Copyright (c) 1995-1997 Stefan Jokisch
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*
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* This file is part of Frotz.
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*
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* Frotz is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Frotz 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
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* GNU 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, MA 02111-1307, USA
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*/
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#include "frotz.h"
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extern bool handle_hot_key (zchar);
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extern bool validate_click (void);
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extern void replay_open (void);
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extern void replay_close (void);
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extern void memory_open (zword, zword, bool);
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extern void memory_close (void);
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extern void record_open (void);
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extern void record_close (void);
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extern void script_open (void);
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extern void script_close (void);
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extern void memory_word (const zchar *);
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extern void memory_new_line (void);
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extern void record_write_key (zchar);
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extern void record_write_input (const zchar *, zchar);
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extern void script_char (zchar);
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extern void script_word (const zchar *);
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extern void script_new_line (void);
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extern void script_write_input (const zchar *, zchar);
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extern void script_erase_input (const zchar *);
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extern void script_mssg_on (void);
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extern void script_mssg_off (void);
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extern void screen_char (zchar);
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extern void screen_word (const zchar *);
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extern void screen_new_line (void);
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extern void screen_write_input (const zchar *, zchar);
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extern void screen_erase_input (const zchar *);
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extern void screen_mssg_on (void);
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extern void screen_mssg_off (void);
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extern zchar replay_read_key (void);
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extern zchar replay_read_input (zchar *);
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extern zchar console_read_key (zword);
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extern zchar console_read_input (int, zchar *, zword, bool);
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extern int direct_call (zword);
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/*
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* stream_mssg_on
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*
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* Start printing a "debugging" message.
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*
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*/
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void stream_mssg_on (void)
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{
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flush_buffer ();
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if (ostream_screen)
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screen_mssg_on ();
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if (ostream_script && enable_scripting)
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script_mssg_on ();
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message = TRUE;
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}/* stream_mssg_on */
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/*
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* stream_mssg_off
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*
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* Stop printing a "debugging" message.
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*
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*/
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void stream_mssg_off (void)
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{
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flush_buffer ();
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if (ostream_screen)
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screen_mssg_off ();
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if (ostream_script && enable_scripting)
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script_mssg_off ();
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message = FALSE;
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}/* stream_mssg_off */
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/*
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* z_output_stream, open or close an output stream.
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*
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* zargs[0] = stream to open (positive) or close (negative)
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* zargs[1] = address to redirect output to (stream 3 only)
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* zargs[2] = width of redirected output (stream 3 only, optional)
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*
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*/
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void z_output_stream (void)
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{
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flush_buffer ();
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switch ((short) zargs[0]) {
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case 1: ostream_screen = TRUE;
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break;
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case -1: ostream_screen = FALSE;
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break;
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case 2: if (!ostream_script) script_open ();
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break;
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case -2: if (ostream_script) script_close ();
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break;
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case 3: memory_open (zargs[1], zargs[2], zargc >= 3);
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break;
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case -3: memory_close ();
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break;
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case 4: if (!ostream_record) record_open ();
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break;
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case -4: if (ostream_record) record_close ();
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break;
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}
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}/* z_output_stream */
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/*
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* stream_char
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*
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* Send a single character to the output stream.
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*
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*/
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void stream_char (zchar c)
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{
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if (ostream_screen)
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screen_char (c);
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if (ostream_script && enable_scripting)
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script_char (c);
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}/* stream_char */
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/*
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* stream_word
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*
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* Send a string of characters to the output streams.
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*
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*/
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void stream_word (const zchar *s)
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{
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if (ostream_memory && !message)
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memory_word (s);
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else {
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if (ostream_screen)
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screen_word (s);
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if (ostream_script && enable_scripting)
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script_word (s);
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}
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}/* stream_word */
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/*
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* stream_new_line
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*
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* Send a newline to the output streams.
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*
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*/
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void stream_new_line (void)
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{
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if (ostream_memory && !message)
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memory_new_line ();
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else {
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if (ostream_screen)
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screen_new_line ();
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if (ostream_script && enable_scripting)
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script_new_line ();
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}
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}/* stream_new_line */
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/*
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* z_input_stream, select an input stream.
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*
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* zargs[0] = input stream to be selected
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*
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*/
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void z_input_stream (void)
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{
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flush_buffer ();
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if (zargs[0] == 0 && istream_replay)
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replay_close ();
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if (zargs[0] == 1 && !istream_replay)
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replay_open ();
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}/* z_input_stream */
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/*
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* stream_read_key
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*
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* Read a single keystroke from the current input stream.
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*
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*/
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zchar stream_read_key ( zword timeout, zword routine,
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bool hot_keys )
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{
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zchar key = ZC_BAD;
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flush_buffer ();
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/* Read key from current input stream */
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continue_input:
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do {
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if (istream_replay)
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key = replay_read_key ();
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else
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key = console_read_key (timeout);
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} while (key == ZC_BAD);
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/* Verify mouse clicks */
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if (key == ZC_SINGLE_CLICK || key == ZC_DOUBLE_CLICK)
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if (!validate_click ())
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goto continue_input;
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/* Copy key to the command file */
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if (ostream_record && !istream_replay)
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record_write_key (key);
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/* Handle timeouts */
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if (key == ZC_TIME_OUT)
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if (direct_call (routine) == 0)
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goto continue_input;
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/* Handle hot keys */
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if (hot_keys && key >= ZC_HKEY_MIN && key <= ZC_HKEY_MAX) {
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if (h_version == V4 && key == ZC_HKEY_UNDO)
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goto continue_input;
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if (!handle_hot_key (key))
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goto continue_input;
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return ZC_BAD;
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}
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/* Return key */
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return key;
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}/* stream_read_key */
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/*
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* stream_read_input
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*
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* Read a line of input from the current input stream.
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*
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*/
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zchar stream_read_input ( int max, zchar *buf,
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zword timeout, zword routine,
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bool hot_keys,
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bool no_scripting )
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{
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zchar key = ZC_BAD;
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flush_buffer ();
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/* Remove initial input from the transscript file or from the screen */
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if (ostream_script && enable_scripting && !no_scripting)
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script_erase_input (buf);
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if (istream_replay)
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screen_erase_input (buf);
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/* Read input line from current input stream */
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continue_input:
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do {
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if (istream_replay)
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key = replay_read_input (buf);
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else
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key = console_read_input (max, buf, timeout, key != ZC_BAD);
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} while (key == ZC_BAD);
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/* Verify mouse clicks */
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if (key == ZC_SINGLE_CLICK || key == ZC_DOUBLE_CLICK)
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if (!validate_click ())
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goto continue_input;
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/* Copy input line to the command file */
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if (ostream_record && !istream_replay)
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record_write_input (buf, key);
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/* Handle timeouts */
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if (key == ZC_TIME_OUT)
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if (direct_call (routine) == 0)
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goto continue_input;
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/* Handle hot keys */
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if (hot_keys && key >= ZC_HKEY_MIN && key <= ZC_HKEY_MAX) {
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if (!handle_hot_key (key))
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goto continue_input;
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return ZC_BAD;
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}
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/* Copy input line to transscript file or to the screen */
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if (ostream_script && enable_scripting && !no_scripting)
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script_write_input (buf, key);
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if (istream_replay)
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screen_write_input (buf, key);
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/* Return terminating key */
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return key;
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}/* stream_read_input */
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