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 "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[256], path[256];
        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			#include "rdesktop.h"
27
28			#define KEYMAP_SIZE 4096
29			#define KEYMAP_MASK (KEYMAP_SIZE - 1)
30
31			extern char keymapname[16];
32			extern int keylayout;
33
34			static uint8 keymap[KEYMAP_SIZE];
35			static unsigned int min_keycode;
36
37			static BOOL xkeymap_read(char *mapname)
38			{
39			FILE *fp;
40			char line[256], path[256];
41			char keyname, p;
42			KeySym keysym;
43			unsigned char keycode;
44			unsigned int mapcode = 0;
45
46			strcpy(path, KEYMAP_PATH);
47			strncat(path, mapname, sizeof(path) - sizeof(KEYMAP_PATH));
48
49			fp = fopen(path, "r");
50			if (fp == NULL)
51			{
52			error("Failed to open keymap %s\n", path);
53			return False;
54			}
55
56			while (fgets(line, sizeof(line), fp) != NULL)
57			{
58			p = strchr(line, '\n');
59			if (p != NULL)
60			*p = 0;
61
62			keycode = strtol(line, &keyname, 16);
63			if ((keycode != 0) && (*keyname == ' '))
64			{
65			do
66			{
67			keyname++;
68			p = strchr(keyname, ' ');
69			if (p != NULL)
70			*p = 0;
71
72			keysym = XStringToKeysym(keyname);
73			if (keysym == NoSymbol)
74			error("Bad keysym %s in keymap %s\n", keyname, mapname);
75
76			keymap[keysym & KEYMAP_MASK] = keycode;
77			keyname = p;
78
79			} while (keyname != NULL);
80			}
81			else if (strncmp(line, "include ", 8) == 0)
82			{
83			if (!xkeymap_read(line+8))
84			return False;
85			}
86			else if (strncmp(line, "map ", 4) == 0)
87			{
88			keylayout = strtol(line+4, NULL, 16);
89			}
90			else if (line[0] != '#')
91			{
92			error("Malformed line in keymap %s\n", mapname);
93			}
94			}
95
96			fclose(fp);
97			return True;
98			}
99
100			void xkeymap_init(Display *display)
101			{
102			unsigned int max_keycode;
103
104			XDisplayKeycodes(display, &min_keycode, &max_keycode);
105
106			if (strcmp(keymapname, "none"))
107			xkeymap_read(keymapname);
108			}
109
110			uint8 xkeymap_translate_key(KeySym keysym, unsigned int keycode)
111			{
112			uint8 scancode;
113
114			scancode = keymap[keysym & KEYMAP_MASK];
115			if (scancode != 0)
116			return scancode;
117
118			/* not in keymap, try to interpret the raw scancode */
119
120			if ((keycode >= min_keycode) && (keycode <= 0x60))
121			return (uint8)(keycode - min_keycode);
122
123			switch (keycode)
124			{
125			case 0x61: /* home */
126			return 0x47 \| 0x80;
127			case 0x62: /* up arrow */
128			return 0x48 \| 0x80;
129			case 0x63: /* page up */
130			return 0x49 \| 0x80;
131			case 0x64: /* left arrow */
132			return 0x4b \| 0x80;
133			case 0x66: /* right arrow */
134			return 0x4d \| 0x80;
135			case 0x67: /* end */
136			return 0x4f \| 0x80;
137			case 0x68: /* down arrow */
138			return 0x50 \| 0x80;
139			case 0x69: /* page down */
140			return 0x51 \| 0x80;
141			case 0x6a: /* insert */
142			return 0x52 \| 0x80;
143			case 0x6b: /* delete */
144			return 0x53 \| 0x80;
145			case 0x6c: /* keypad enter */
146			return 0x1c \| 0x80;
147			case 0x6d: /* right ctrl */
148			return 0x1d \| 0x80;
149			case 0x6f: /* ctrl - print screen */
150			return 0x37 \| 0x80;
151			case 0x70: /* keypad '/' */
152			return 0x35 \| 0x80;
153			case 0x71: /* right alt */
154			return 0x38 \| 0x80;
155			case 0x72: /* ctrl break */
156			return 0x46 \| 0x80;
157			case 0x73: /* left window key */
158			return 0x5b \| 0x80;
159			case 0x74: /* right window key */
160			return 0x5c \| 0x80;
161			case 0x75: /* menu key */
162			return 0x5d \| 0x80;
163			}
164
165			return 0;
166			}
167
168			uint16 xkeymap_translate_button(unsigned int button)
169			{
170			switch (button)
171			{
172			case Button1: /* left */
173			return MOUSE_FLAG_BUTTON1;
174			case Button2: /* middle */
175			return MOUSE_FLAG_BUTTON3;
176			case Button3: /* right */
177			return MOUSE_FLAG_BUTTON2;
178			}
179
180			return 0;
181			}