added keymap

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8880 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/input_server/devices/keyboard/Jamfile

@@ -2,6 +2,7 @@ SubDir OBOS_TOP src add-ons input_server devices keyboard ;
 
 Addon <input>keyboard : input_server/devices : 
 	KeyboardInputDevice.cpp
+	Keymap.cpp
 	: false 
 	: be <nogrist>input_server ;
 

src/add-ons/input_server/devices/keyboard/KeyboardInputDevice.h

@@ -27,6 +27,7 @@
 #ifndef __KEYBOARDINPUTDEVICE_H
 #define __KEYBOARDINPUTDEVICE_H
 
+#include "Keymap.h"
 #include <InputServerDevice.h>
 #include <List.h>
 #include <stdio.h>
@@ -62,6 +63,7 @@ private:
 	static char *GetShortName(const char *longName);
 	
 	BList fDevices;
+	Keymap	fKeymap;
 };
 
 extern "C" BInputServerDevice *instantiate_input_device();

src/add-ons/input_server/devices/keyboard/Keymap.cpp

@@ -0,0 +1,323 @@
+// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+//
+//	Copyright (c) 2004, Haiku
+//
+//  This software is part of the Haiku distribution and is covered 
+//  by the Haiku license.
+//
+//
+//  File:        Keymap.h
+//  Author:      Jérôme Duval
+//  Description: Keyboard input server addon
+//  Created :    September 7, 2004
+// 
+// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+
+#include "Keymap.h"
+#include <stdio.h>
+#include <string.h>
+#include <ByteOrder.h>
+#include <File.h>
+
+static void 
+print_key( char *chars, int32 offset ) 
+{
+	int size = chars[offset++];
+	
+	switch( size ) {
+	case 0:
+		// Not mapped 
+		printf( "N/A" ); 
+		break; 
+	
+	case 1:
+		// 1-byte UTF-8/ASCII character 
+		printf( "%c", chars[offset] ); 
+		break; 
+	
+	default:
+		// 2-, 3-, or 4-byte UTF-8 character 
+		{ 
+			char *str = new char[size + 1]; 
+			strncpy( str, &(chars[offset]), size );
+			str[size] = 0; 
+			printf( "%s", str ); 
+			delete [] str; 
+		} 
+		break; 
+	} 
+	
+	printf( "\t" ); 
+}
+
+
+void
+Keymap::DumpKeymap()
+{
+	// Print a chart of the normal, shift, option, and option+shift 
+	// keys. 
+	printf( "Key #\tNormal\tShift\tCaps\tC+S\tOption\tO+S\tO+C\tO+C+S\tControl\n" ); 
+	for( int idx = 0; idx < 128; idx++ ) { 
+		printf( " 0x%x\t", idx ); 
+		print_key( fChars, fKeys.normal_map[idx] ); 
+		print_key( fChars, fKeys.shift_map[idx] ); 
+		print_key( fChars, fKeys.caps_map[idx] ); 
+		print_key( fChars, fKeys.caps_shift_map[idx] ); 
+		print_key( fChars, fKeys.option_map[idx] ); 
+		print_key( fChars, fKeys.option_shift_map[idx] ); 
+		print_key( fChars, fKeys.option_caps_map[idx] ); 
+		print_key( fChars, fKeys.option_caps_shift_map[idx] ); 
+		print_key( fChars, fKeys.control_map[idx] ); 
+		printf( "\n" ); 
+	} 
+
+}
+
+
+Keymap::Keymap() : 
+	fChars(NULL)
+{
+	key_map *keys;
+	get_key_map(&keys, &fChars);
+	
+	if (keys)
+		memcpy(&fKeys, keys, sizeof(key_map));
+}
+
+
+/* we need to know if a key is a modifier key to choose 
+	a valid key when several are pressed together
+*/
+bool 
+Keymap::IsModifierKey(uint32 keyCode)
+{
+	if ((keyCode == fKeys.caps_key)
+		|| (keyCode == fKeys.num_key)
+		|| (keyCode == fKeys.scroll_key)
+		|| (keyCode == fKeys.left_shift_key)
+		|| (keyCode == fKeys.right_shift_key)
+		|| (keyCode == fKeys.left_command_key)
+		|| (keyCode == fKeys.right_command_key)
+		|| (keyCode == fKeys.left_control_key)
+		|| (keyCode == fKeys.right_control_key)
+		|| (keyCode == fKeys.left_option_key)
+		|| (keyCode == fKeys.right_option_key)
+		|| (keyCode == fKeys.menu_key))
+			return true;
+	return false;
+}
+
+
+// tell if a key is a dead key, needed for draw a dead key
+uint8
+Keymap::IsDeadKey(uint32 keyCode, uint32 modifiers)
+{
+	int32 offset;
+	uint32 tableMask = 0;
+	
+	switch (modifiers & 0xcf) {
+		case B_SHIFT_KEY: offset = fKeys.shift_map[keyCode]; tableMask = B_SHIFT_TABLE; break;
+		case B_CAPS_LOCK: offset = fKeys.caps_map[keyCode]; tableMask = B_CAPS_TABLE; break;
+		case B_CAPS_LOCK|B_SHIFT_KEY: offset = fKeys.caps_shift_map[keyCode]; tableMask = B_CAPS_SHIFT_TABLE; break;
+		case B_OPTION_KEY: offset = fKeys.option_map[keyCode]; tableMask = B_OPTION_TABLE; break;
+		case B_OPTION_KEY|B_SHIFT_KEY: offset = fKeys.option_shift_map[keyCode]; tableMask = B_OPTION_SHIFT_TABLE; break;
+		case B_OPTION_KEY|B_CAPS_LOCK: offset = fKeys.option_caps_map[keyCode]; tableMask = B_OPTION_CAPS_TABLE; break;
+		case B_OPTION_KEY|B_SHIFT_KEY|B_CAPS_LOCK: offset = fKeys.option_caps_shift_map[keyCode]; tableMask = B_OPTION_CAPS_SHIFT_TABLE; break;
+		case B_CONTROL_KEY: offset = fKeys.control_map[keyCode]; tableMask = B_CONTROL_TABLE; break;
+		default: offset = fKeys.normal_map[keyCode]; tableMask = B_NORMAL_TABLE; break;
+	}
+	
+	if (offset<=0)
+		return 0;	
+	uint32 numBytes = fChars[offset];
+	
+	if (!numBytes)
+		return 0;
+		
+	char chars[4];	
+	strncpy(chars, &(fChars[offset+1]), numBytes );
+	chars[numBytes] = 0; 
+	
+	int32 deadOffsets[] = {
+		fKeys.acute_dead_key[1],
+		fKeys.grave_dead_key[1],
+		fKeys.circumflex_dead_key[1],
+		fKeys.dieresis_dead_key[1],
+		fKeys.tilde_dead_key[1]
+	}; 
+	
+	uint32 deadTables[] = {
+		fKeys.acute_tables,
+		fKeys.grave_tables,
+		fKeys.circumflex_tables,
+		fKeys.dieresis_tables,
+		fKeys.tilde_tables
+	};
+	
+	for (int32 i=0; i<5; i++) {
+		if ((deadTables[i] & tableMask) == 0)
+			continue;
+		
+		if (offset == deadOffsets[i])
+			return i+1;
+			
+		uint32 deadNumBytes = fChars[deadOffsets[i]];
+		
+		if (!deadNumBytes)
+			continue;
+			
+		if (strncmp(chars, &(fChars[deadOffsets[i]+1]), deadNumBytes ) == 0) {
+			return i+1;
+		}
+	}
+	return 0;
+}
+
+
+// tell if a key is a dead second key, needed for draw a dead second key
+bool
+Keymap::IsDeadSecondKey(uint32 keyCode, uint32 modifiers, uint8 activeDeadKey)
+{
+	if (!activeDeadKey)
+		return false;
+	
+	int32 offset;
+	
+	switch (modifiers & 0xcf) {
+		case B_SHIFT_KEY: offset = fKeys.shift_map[keyCode]; break;
+		case B_CAPS_LOCK: offset = fKeys.caps_map[keyCode]; break;
+		case B_CAPS_LOCK|B_SHIFT_KEY: offset = fKeys.caps_shift_map[keyCode]; break;
+		case B_OPTION_KEY: offset = fKeys.option_map[keyCode]; break;
+		case B_OPTION_KEY|B_SHIFT_KEY: offset = fKeys.option_shift_map[keyCode]; break;
+		case B_OPTION_KEY|B_CAPS_LOCK: offset = fKeys.option_caps_map[keyCode]; break;
+		case B_OPTION_KEY|B_SHIFT_KEY|B_CAPS_LOCK: offset = fKeys.option_caps_shift_map[keyCode]; break;
+		case B_CONTROL_KEY: offset = fKeys.control_map[keyCode]; break;
+		default: offset = fKeys.normal_map[keyCode]; break;
+	}
+	
+	uint32 numBytes = fChars[offset];
+	
+	if (!numBytes)
+		return false;
+	
+	int32* deadOffsets[] = {
+		fKeys.acute_dead_key,
+		fKeys.grave_dead_key,
+		fKeys.circumflex_dead_key,
+		fKeys.dieresis_dead_key,
+		fKeys.tilde_dead_key
+	};
+	
+	int32 *deadOffset = deadOffsets[activeDeadKey-1]; 
+	
+	for (int32 i=0; i<32; i++) {
+		if (offset == deadOffset[i])
+			return true;
+			
+		uint32 deadNumBytes = fChars[deadOffset[i]];
+		
+		if (!deadNumBytes)
+			continue;
+			
+		if (strncmp(&(fChars[offset+1]), &(fChars[deadOffset[i]+1]), deadNumBytes ) == 0)
+			return true;
+		i++;
+	}
+	return false;
+}
+
+
+// get the char for a key given modifiers and active dead key
+void
+Keymap::GetChars(uint32 keyCode, uint32 modifiers, uint8 activeDeadKey, char** chars, int32* numBytes)
+{
+	int32 offset;
+	
+	*numBytes = 0;
+	*chars = NULL;
+	
+	// here we take NUMLOCK into account
+	if (modifiers & B_NUM_LOCK)
+		switch (keyCode) {
+			case 0x37:
+			case 0x38:
+			case 0x39:
+			case 0x48:
+			case 0x49:
+			case 0x4a:
+			case 0x58:
+			case 0x59:
+			case 0x5a:
+			case 0x64:
+			case 0x65:
+				modifiers ^= B_SHIFT_KEY;
+		}	
+
+	// here we choose the right map given the modifiers
+	switch (modifiers & 0xcf) {
+		case B_SHIFT_KEY: offset = fKeys.shift_map[keyCode]; break;
+		case B_CAPS_LOCK: offset = fKeys.caps_map[keyCode]; break;
+		case B_CAPS_LOCK|B_SHIFT_KEY: offset = fKeys.caps_shift_map[keyCode]; break;
+		case B_OPTION_KEY: offset = fKeys.option_map[keyCode]; break;
+		case B_OPTION_KEY|B_SHIFT_KEY: offset = fKeys.option_shift_map[keyCode]; break;
+		case B_OPTION_KEY|B_CAPS_LOCK: offset = fKeys.option_caps_map[keyCode]; break;
+		case B_OPTION_KEY|B_SHIFT_KEY|B_CAPS_LOCK: offset = fKeys.option_caps_shift_map[keyCode]; break;
+		case B_CONTROL_KEY: offset = fKeys.control_map[keyCode]; break;
+		default: offset = fKeys.normal_map[keyCode]; break;
+	}
+	
+	// here we get the char size
+	*numBytes = fChars[offset];
+	
+	if (!*numBytes)
+		return;
+	
+	// here we take an potential active dead key
+	int32 *dead_key;
+	switch(activeDeadKey) {
+		case 1: dead_key = fKeys.acute_dead_key; break;
+		case 2: dead_key = fKeys.grave_dead_key; break;
+		case 3: dead_key = fKeys.circumflex_dead_key; break;
+		case 4: dead_key = fKeys.dieresis_dead_key; break;
+		case 5: dead_key = fKeys.tilde_dead_key; break;
+		default: 
+		{
+			// if not dead, we copy and return the char
+			char *str = *chars = new char[*numBytes + 1]; 
+			strncpy(str, &(fChars[offset+1]), *numBytes );
+			str[*numBytes] = 0;
+			return;
+		}
+	}
+
+	// if dead key, we search for our current offset char in the dead key offset table
+	// string comparison is needed
+	for (int32 i=0; i<32; i++) {
+		if (strncmp(&(fChars[offset+1]), &(fChars[dead_key[i]+1]), *numBytes ) == 0) {
+			*numBytes = fChars[dead_key[i+1]];
+		
+			switch( *numBytes ) {
+				case 0:
+					// Not mapped
+					*chars = NULL; 
+					break; 
+				default:
+					// 1-, 2-, 3-, or 4-byte UTF-8 character 
+				{ 
+					char *str = *chars = new char[*numBytes + 1]; 
+					strncpy(str, &fChars[dead_key[i+1]+1], *numBytes );
+					str[*numBytes] = 0; 
+				} 
+					break; 
+			}
+			return;
+		}		
+		i++;
+	}
+
+	// if not found we return the current char mapped	
+	*chars = new char[*numBytes + 1];
+	strncpy(*chars, &(fChars[offset+1]), *numBytes );
+	(*chars)[*numBytes] = 0; 	
+	
+}

src/add-ons/input_server/devices/keyboard/Keymap.h

@@ -0,0 +1,38 @@
+// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+//
+//	Copyright (c) 2004, Haiku
+//
+//  This software is part of the Haiku distribution and is covered 
+//  by the Haiku license.
+//
+//
+//  File:        Keymap.h
+//  Author:      Jérôme Duval
+//  Description: Keyboard input server addon
+//  Created :    September 7, 2004
+// 
+// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+
+#ifndef KEYMAP_H
+#define KEYMAP_H
+
+#include <InterfaceDefs.h>
+#include <Entry.h>
+
+class Keymap 
+{
+public:
+	Keymap();
+	void DumpKeymap();
+	bool IsModifierKey(uint32 keyCode);
+	uint8 IsDeadKey(uint32 keyCode, uint32 modifiers);
+	bool IsDeadSecondKey(uint32 keyCode, uint32 modifiers, uint8 activeDeadKey);
+	void GetChars(uint32 keyCode, uint32 modifiers, uint8 activeDeadKey, char** chars, int32* numBytes);
+private:
+	char *fChars;
+	key_map fKeys;
+	//uint32 fCharsSize;
+};
+
+
+#endif //KEYMAP_H