bb6b2dcd |
1 | /* $Id$ */\r |
2 | /***************************************************************\r |
3 | ** I/O subsystem for PForth for WIN32 systems.\r |
4 | **\r |
5 | ** Use Windows Console so we can add the ANSI console commands needed to support HISTORY\r |
6 | **\r |
7 | ** Author: Phil Burk\r |
8 | ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom\r |
9 | **\r |
10 | ** The pForth software code is dedicated to the public domain,\r |
11 | ** and any third party may reproduce, distribute and modify\r |
12 | ** the pForth software code or any derivative works thereof\r |
13 | ** without any compensation or license. The pForth software\r |
14 | ** code is provided on an "as is" basis without any warranty\r |
15 | ** of any kind, including, without limitation, the implied\r |
16 | ** warranties of merchantability and fitness for a particular\r |
17 | ** purpose and their equivalents under the laws of any jurisdiction.\r |
18 | **\r |
19 | ***************************************************************/\r |
20 | \r |
21 | #include "../pf_all.h"\r |
22 | \r |
23 | #if WIN32\r |
24 | \r |
25 | #include <windows.h>\r |
26 | \r |
27 | #define ASCII_ESCAPE (0x1B)\r |
28 | \r |
29 | static HANDLE sConsoleHandle = INVALID_HANDLE_VALUE;\r |
30 | static int sIsConsoleValid = FALSE;\r |
31 | \r |
32 | typedef enum ConsoleState_e\r |
33 | {\r |
34 | SDCONSOLE_STATE_IDLE = 0,\r |
35 | SDCONSOLE_STATE_GOT_ESCAPE,\r |
36 | SDCONSOLE_STATE_GOT_BRACKET,\r |
37 | \r |
38 | } ConsoleState;\r |
39 | \r |
40 | static int sConsoleState = SDCONSOLE_STATE_IDLE;\r |
41 | static int sParam1 = 0;\r |
42 | static CONSOLE_SCREEN_BUFFER_INFO sScreenInfo;\r |
43 | \r |
44 | /******************************************************************/\r |
45 | static void sdConsoleEmit( char c )\r |
46 | {\r |
47 | // Write a WCHAR in case we have compiled with Unicode support.\r |
48 | // Otherwise we will see '?' printed.\r |
49 | WCHAR wc = (WCHAR) c;\r |
50 | DWORD count;\r |
51 | if( sIsConsoleValid )\r |
52 | {\r |
53 | WriteConsoleW(sConsoleHandle, &wc, 1, &count, NULL );\r |
54 | }\r |
55 | else\r |
56 | {\r |
57 | // This will get called if we are redirecting to a file.\r |
58 | WriteFile(sConsoleHandle, &c, 1, &count, NULL );\r |
59 | }\r |
60 | }\r |
61 | \r |
62 | /******************************************************************/\r |
63 | static void sdClearScreen( void )\r |
64 | {\r |
65 | if( GetConsoleScreenBufferInfo( sConsoleHandle, &sScreenInfo ) )\r |
66 | {\r |
67 | COORD XY;\r |
68 | int numNeeded;\r |
69 | DWORD count;\r |
70 | XY.X = 0;\r |
71 | XY.Y = sScreenInfo.srWindow.Top;\r |
72 | numNeeded = sScreenInfo.dwSize.X * (sScreenInfo.srWindow.Bottom - sScreenInfo.srWindow.Top + 1);\r |
73 | FillConsoleOutputCharacter(\r |
74 | sConsoleHandle, ' ', numNeeded, XY, &count );\r |
75 | SetConsoleCursorPosition( sConsoleHandle, XY );\r |
76 | }\r |
77 | }\r |
78 | \r |
79 | /******************************************************************/\r |
80 | static void sdEraseEOL( void )\r |
81 | {\r |
82 | if( GetConsoleScreenBufferInfo( sConsoleHandle, &sScreenInfo ) )\r |
83 | {\r |
84 | COORD savedXY;\r |
85 | int numNeeded;\r |
86 | DWORD count;\r |
87 | savedXY.X = sScreenInfo.dwCursorPosition.X;\r |
88 | savedXY.Y = sScreenInfo.dwCursorPosition.Y;\r |
89 | numNeeded = sScreenInfo.dwSize.X - savedXY.X;\r |
90 | FillConsoleOutputCharacter(\r |
91 | sConsoleHandle, ' ', numNeeded, savedXY, &count );\r |
92 | }\r |
93 | }\r |
94 | \r |
95 | /******************************************************************/\r |
96 | static void sdCursorBack( int dx )\r |
97 | {\r |
98 | if( GetConsoleScreenBufferInfo( sConsoleHandle, &sScreenInfo ) )\r |
99 | {\r |
100 | COORD XY;\r |
101 | XY.X = sScreenInfo.dwCursorPosition.X;\r |
102 | XY.Y = sScreenInfo.dwCursorPosition.Y;\r |
103 | XY.X -= dx;\r |
104 | if( XY.X < 0 ) XY.X = 0;\r |
105 | SetConsoleCursorPosition( sConsoleHandle, XY );\r |
106 | }\r |
107 | }\r |
108 | /******************************************************************/\r |
109 | static void sdCursorForward( int dx )\r |
110 | {\r |
111 | if( GetConsoleScreenBufferInfo( sConsoleHandle, &sScreenInfo ) )\r |
112 | {\r |
113 | COORD XY;\r |
114 | int width = sScreenInfo.dwSize.X;\r |
115 | XY.X = sScreenInfo.dwCursorPosition.X;\r |
116 | XY.Y = sScreenInfo.dwCursorPosition.Y;\r |
117 | XY.X += dx;\r |
118 | if( XY.X > width ) XY.X = width;\r |
119 | SetConsoleCursorPosition( sConsoleHandle, XY );\r |
120 | }\r |
121 | }\r |
122 | \r |
123 | /******************************************************************/\r |
124 | /* Use console mode I/O so that KEY and ?TERMINAL will work.\r |
125 | * Parse ANSI escape sequences and call the appropriate cursor\r |
126 | * control functions.\r |
127 | */\r |
128 | int sdTerminalOut( char c )\r |
129 | {\r |
130 | switch( sConsoleState )\r |
131 | {\r |
132 | case SDCONSOLE_STATE_IDLE:\r |
133 | switch( c )\r |
134 | {\r |
135 | case ASCII_ESCAPE:\r |
136 | sConsoleState = SDCONSOLE_STATE_GOT_ESCAPE;\r |
137 | break;\r |
138 | default:\r |
139 | sdConsoleEmit( c );\r |
140 | }\r |
141 | break;\r |
142 | \r |
143 | case SDCONSOLE_STATE_GOT_ESCAPE:\r |
144 | switch( c )\r |
145 | {\r |
146 | case '[':\r |
147 | sConsoleState = SDCONSOLE_STATE_GOT_BRACKET;\r |
148 | sParam1 = 0;\r |
149 | break;\r |
150 | default:\r |
151 | sConsoleState = SDCONSOLE_STATE_IDLE;\r |
152 | sdConsoleEmit( c );\r |
153 | }\r |
154 | break;\r |
155 | \r |
156 | case SDCONSOLE_STATE_GOT_BRACKET:\r |
157 | if( (c >= '0') && (c <= '9') )\r |
158 | {\r |
159 | sParam1 = (sParam1 * 10) + (c - '0');\r |
160 | }\r |
161 | else\r |
162 | {\r |
163 | sConsoleState = SDCONSOLE_STATE_IDLE;\r |
164 | if( c == 'K')\r |
165 | {\r |
166 | sdEraseEOL();\r |
167 | }\r |
168 | else if( c == 'D' )\r |
169 | {\r |
170 | sdCursorBack( sParam1 );\r |
171 | }\r |
172 | else if( c == 'C' )\r |
173 | {\r |
174 | sdCursorForward( sParam1 );\r |
175 | }\r |
176 | else if( (c == 'J') && (sParam1 == 2) )\r |
177 | {\r |
178 | sdClearScreen();\r |
179 | }\r |
180 | }\r |
181 | break;\r |
182 | }\r |
183 | return 0;\r |
184 | }\r |
185 | \r |
186 | /* Needed cuz _getch() does not echo. */\r |
187 | int sdTerminalEcho( char c )\r |
188 | {\r |
189 | sdConsoleEmit((char)(c));\r |
190 | return 0;\r |
191 | }\r |
192 | \r |
193 | int sdTerminalIn( void )\r |
194 | {\r |
195 | return _getch();\r |
196 | }\r |
197 | \r |
198 | int sdQueryTerminal( void )\r |
199 | {\r |
200 | return _kbhit();\r |
201 | }\r |
202 | \r |
203 | int sdTerminalFlush( void )\r |
204 | {\r |
205 | #ifdef PF_NO_FILEIO\r |
206 | return -1;\r |
207 | #else\r |
208 | return fflush(PF_STDOUT);\r |
209 | #endif\r |
210 | }\r |
211 | \r |
212 | void sdTerminalInit( void )\r |
213 | {\r |
214 | DWORD mode = 0;\r |
215 | sConsoleHandle = GetStdHandle( STD_OUTPUT_HANDLE );\r |
216 | if( GetConsoleMode( sConsoleHandle, &mode ) )\r |
217 | {\r |
218 | //printf("GetConsoleMode() mode is 0x%08X\n", mode );\r |
219 | sIsConsoleValid = TRUE;\r |
220 | }\r |
221 | else\r |
222 | {\r |
223 | //printf("GetConsoleMode() failed\n", mode );\r |
224 | sIsConsoleValid = FALSE;\r |
225 | }\r |
226 | }\r |
227 | \r |
228 | void sdTerminalTerm( void )\r |
229 | {\r |
230 | }\r |
231 | #endif\r |