trunk/rdesktop/xkeymap.c

/*
   rdesktop: A Remote Desktop Protocol client.
   User interface services - X keyboard mapping
   Copyright (C) Matthew Chapman 1999-2001
   
   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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include "rdesktop.h"

#define KEYMAP_SIZE 4096
#define KEYMAP_MASK (KEYMAP_SIZE - 1)

extern char keymapname[16];
extern int keylayout;

static uint8 keymap[KEYMAP_SIZE];
static unsigned int min_keycode;

static BOOL xkeymap_read(char *mapname)
{
        FILE *fp;
        char line[PATH_MAX], path[PATH_MAX];
        char *keyname, *p;
        KeySym keysym;
        unsigned char keycode;
        unsigned int mapcode = 0;

        strcpy(path, KEYMAP_PATH);
        strncat(path, mapname, sizeof(path) - sizeof(KEYMAP_PATH));

        fp = fopen(path, "r");
        if (fp == NULL)
        {
                error("Failed to open keymap %s\n", path);
                return False;
        }

        while (fgets(line, sizeof(line), fp) != NULL)
        {
                p = strchr(line, '\n');
                if (p != NULL)
                        *p = 0;

                keycode = strtol(line, &keyname, 16);
                if ((keycode != 0) && (*keyname == ' '))
                {
                        do
                        {
                                keyname++;
                                p = strchr(keyname, ' ');
                                if (p != NULL)
                                        *p = 0;

                                keysym = XStringToKeysym(keyname);
                                if (keysym == NoSymbol)
                                        error("Bad keysym %s in keymap %s\n", keyname, mapname);

                                keymap[keysym & KEYMAP_MASK] = keycode;
                                keyname = p;

                        } while (keyname != NULL);
                }
                else if (strncmp(line, "include ", 8) == 0)
                {
                        if (!xkeymap_read(line+8))
                                return False;
                }
                else if (strncmp(line, "map ", 4) == 0)
                {
                        keylayout = strtol(line+4, NULL, 16);
                }
                else if (line[0] != '#')
                {
                        error("Malformed line in keymap %s\n", mapname);
                }
        }

        fclose(fp);
        return True;
}

void xkeymap_init(Display *display)
{
        unsigned int max_keycode;

        XDisplayKeycodes(display, &min_keycode, &max_keycode);

        if (strcmp(keymapname, "none"))
                xkeymap_read(keymapname);
}

uint8 xkeymap_translate_key(KeySym keysym, unsigned int keycode)
{
        uint8 scancode;

        scancode = keymap[keysym & KEYMAP_MASK];
        if (scancode != 0)
                return scancode;

        /* not in keymap, try to interpret the raw scancode */

        if ((keycode >= min_keycode) && (keycode <= 0x60))
                return (uint8)(keycode - min_keycode);

        switch (keycode)
        {
                case 0x61:      /* home */
                        return 0x47 | 0x80;
                case 0x62:      /* up arrow */
                        return 0x48 | 0x80;
                case 0x63:      /* page up */
                        return 0x49 | 0x80;
                case 0x64:      /* left arrow */
                        return 0x4b | 0x80;
                case 0x66:      /* right arrow */
                        return 0x4d | 0x80;
                case 0x67:      /* end */
                        return 0x4f | 0x80;
                case 0x68:      /* down arrow */
                        return 0x50 | 0x80;
                case 0x69:      /* page down */
                        return 0x51 | 0x80;
                case 0x6a:      /* insert */
                        return 0x52 | 0x80;
                case 0x6b:      /* delete */
                        return 0x53 | 0x80;
                case 0x6c:      /* keypad enter */
                        return 0x1c | 0x80;
                case 0x6d:      /* right ctrl */
                        return 0x1d | 0x80;
                case 0x6f:      /* ctrl - print screen */
                        return 0x37 | 0x80;
                case 0x70:      /* keypad '/' */
                        return 0x35 | 0x80;
                case 0x71:      /* right alt */
                        return 0x38 | 0x80;
                case 0x72:      /* ctrl break */
                        return 0x46 | 0x80;
                case 0x73:      /* left window key */
                        return 0x5b | 0x80;
                case 0x74:      /* right window key */
                        return 0x5c | 0x80;
                case 0x75:      /* menu key */
                        return 0x5d | 0x80;
        }

        return 0;
}

uint16 xkeymap_translate_button(unsigned int button)
{
        switch (button)
        {
                case Button1:   /* left */
                        return MOUSE_FLAG_BUTTON1;
                case Button2:   /* middle */
                        return MOUSE_FLAG_BUTTON3;
                case Button3:   /* right */
                        return MOUSE_FLAG_BUTTON2;
        }

        return 0;
}
1	matthewc	38	/*
2			rdesktop: A Remote Desktop Protocol client.
3			User interface services - X keyboard mapping
4			Copyright (C) Matthew Chapman 1999-2001
5
6			This program is free software; you can redistribute it and/or modify
7			it under the terms of the GNU General Public License as published by
8			the Free Software Foundation; either version 2 of the License, or
9			(at your option) any later version.
10
11			This program is distributed in the hope that it will be useful,
12			but WITHOUT ANY WARRANTY; without even the implied warranty of
13			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			GNU General Public License for more details.
15
16			You should have received a copy of the GNU General Public License
17			along with this program; if not, write to the Free Software
18			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19			*/
20
21			#include <X11/Xlib.h>
22			#include <X11/keysym.h>
23			#include <stdio.h>
24			#include <stdlib.h>
25			#include <string.h>
26	matthewc	39	#include <limits.h>
27	matthewc	38	#include "rdesktop.h"
28
29			#define KEYMAP_SIZE 4096
30			#define KEYMAP_MASK (KEYMAP_SIZE - 1)
31
32			extern char keymapname[16];
33			extern int keylayout;
34
35			static uint8 keymap[KEYMAP_SIZE];
36			static unsigned int min_keycode;
37
38			static BOOL xkeymap_read(char *mapname)
39			{
40			FILE *fp;
41	matthewc	39	char line[PATH_MAX], path[PATH_MAX];
42	matthewc	38	char keyname, p;
43			KeySym keysym;
44			unsigned char keycode;
45			unsigned int mapcode = 0;
46
47			strcpy(path, KEYMAP_PATH);
48			strncat(path, mapname, sizeof(path) - sizeof(KEYMAP_PATH));
49
50			fp = fopen(path, "r");
51			if (fp == NULL)
52			{
53			error("Failed to open keymap %s\n", path);
54			return False;
55			}
56
57			while (fgets(line, sizeof(line), fp) != NULL)
58			{
59			p = strchr(line, '\n');
60			if (p != NULL)
61			*p = 0;
62
63			keycode = strtol(line, &keyname, 16);
64			if ((keycode != 0) && (*keyname == ' '))
65			{
66			do
67			{
68			keyname++;
69			p = strchr(keyname, ' ');
70			if (p != NULL)
71			*p = 0;
72
73			keysym = XStringToKeysym(keyname);
74			if (keysym == NoSymbol)
75			error("Bad keysym %s in keymap %s\n", keyname, mapname);
76
77			keymap[keysym & KEYMAP_MASK] = keycode;
78			keyname = p;
79
80			} while (keyname != NULL);
81			}
82			else if (strncmp(line, "include ", 8) == 0)
83			{
84			if (!xkeymap_read(line+8))
85			return False;
86			}
87			else if (strncmp(line, "map ", 4) == 0)
88			{
89			keylayout = strtol(line+4, NULL, 16);
90			}
91			else if (line[0] != '#')
92			{
93			error("Malformed line in keymap %s\n", mapname);
94			}
95			}
96
97			fclose(fp);
98			return True;
99			}
100
101			void xkeymap_init(Display *display)
102			{
103			unsigned int max_keycode;
104
105			XDisplayKeycodes(display, &min_keycode, &max_keycode);
106
107			if (strcmp(keymapname, "none"))
108			xkeymap_read(keymapname);
109			}
110
111			uint8 xkeymap_translate_key(KeySym keysym, unsigned int keycode)
112			{
113			uint8 scancode;
114
115			scancode = keymap[keysym & KEYMAP_MASK];
116			if (scancode != 0)
117			return scancode;
118
119			/* not in keymap, try to interpret the raw scancode */
120
121			if ((keycode >= min_keycode) && (keycode <= 0x60))
122			return (uint8)(keycode - min_keycode);
123
124			switch (keycode)
125			{
126			case 0x61: /* home */
127			return 0x47 \| 0x80;
128			case 0x62: /* up arrow */
129			return 0x48 \| 0x80;
130			case 0x63: /* page up */
131			return 0x49 \| 0x80;
132			case 0x64: /* left arrow */
133			return 0x4b \| 0x80;
134			case 0x66: /* right arrow */
135			return 0x4d \| 0x80;
136			case 0x67: /* end */
137			return 0x4f \| 0x80;
138			case 0x68: /* down arrow */
139			return 0x50 \| 0x80;
140			case 0x69: /* page down */
141			return 0x51 \| 0x80;
142			case 0x6a: /* insert */
143			return 0x52 \| 0x80;
144			case 0x6b: /* delete */
145			return 0x53 \| 0x80;
146			case 0x6c: /* keypad enter */
147			return 0x1c \| 0x80;
148			case 0x6d: /* right ctrl */
149			return 0x1d \| 0x80;
150			case 0x6f: /* ctrl - print screen */
151			return 0x37 \| 0x80;
152			case 0x70: /* keypad '/' */
153			return 0x35 \| 0x80;
154			case 0x71: /* right alt */
155			return 0x38 \| 0x80;
156			case 0x72: /* ctrl break */
157			return 0x46 \| 0x80;
158			case 0x73: /* left window key */
159			return 0x5b \| 0x80;
160			case 0x74: /* right window key */
161			return 0x5c \| 0x80;
162			case 0x75: /* menu key */
163			return 0x5d \| 0x80;
164			}
165
166			return 0;
167			}
168
169			uint16 xkeymap_translate_button(unsigned int button)
170			{
171			switch (button)
172			{
173			case Button1: /* left */
174			return MOUSE_FLAG_BUTTON1;
175			case Button2: /* middle */
176			return MOUSE_FLAG_BUTTON3;
177			case Button3: /* right */
178			return MOUSE_FLAG_BUTTON2;
179			}
180
181			return 0;
182			}