385 lines
8.4 KiB
C
385 lines
8.4 KiB
C
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/*
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* tkMacKeyboard.c --
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*
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* Routines to support keyboard events on the Macintosh.
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*
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* Copyright (c) 1995-1996 Sun Microsystems, Inc.
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*
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* See the file "license.terms" for information on usage and redistribution
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*
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* SCCS: @(#) tkMacKeyboard.c 1.14 96/08/15 15:34:00
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*/
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#include "tkInt.h"
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#include "Xlib.h"
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#include "keysym.h"
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#include <Events.h>
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#include <Script.h>
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typedef struct {
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short keycode; /* Macintosh keycode */
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KeySym keysym; /* X windows Keysym */
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} KeyInfo;
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static KeyInfo keyArray[] = {
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{0x4C, XK_Return},
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{0x24, XK_Return},
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{0x33, XK_BackSpace},
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{0x75, XK_Delete},
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{0x30, XK_Tab},
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{0x74, XK_Page_Up},
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{0x79, XK_Page_Down},
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{0x73, XK_Home},
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{0x77, XK_End},
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{0x7B, XK_Left},
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{0x7C, XK_Right},
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{0x7E, XK_Up},
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{0x7D, XK_Down},
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{0x72, XK_Help},
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{0x35, XK_Escape},
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{0x47, XK_Clear},
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{0, 0}
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};
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static KeyInfo vituralkeyArray[] = {
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{122, XK_F1},
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{120, XK_F2},
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{99, XK_F3},
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{118, XK_F4},
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{96, XK_F5},
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{97, XK_F6},
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{98, XK_F7},
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{100, XK_F8},
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{101, XK_F9},
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{109, XK_F10},
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{103, XK_F11},
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{111, XK_F12},
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{105, XK_F13},
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{107, XK_F14},
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{113, XK_F15},
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{0, 0}
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};
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static int initialized = 0;
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static Tcl_HashTable keycodeTable; /* keyArray hashed by keycode value. */
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static Tcl_HashTable vkeyTable; /* vituralkeyArray hashed by virtual
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keycode value. */
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static Ptr KCHRPtr; /* Pointer to 'KCHR' resource. */
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/*
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* Prototypes for static functions used in this file.
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*/
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static void InitKeyMaps _ANSI_ARGS_((void));
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/*
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*----------------------------------------------------------------------
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*
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* InitKeyMaps --
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*
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* Creates hash tables used by some of the functions in this file.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Allocates memory & creates some hash tables.
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*
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*----------------------------------------------------------------------
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*/
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static void
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InitKeyMaps()
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{
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register Tcl_HashEntry *hPtr;
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register KeyInfo *kPtr;
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int dummy;
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Tcl_InitHashTable(&keycodeTable, TCL_ONE_WORD_KEYS);
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for (kPtr = keyArray; kPtr->keycode != 0; kPtr++) {
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hPtr = Tcl_CreateHashEntry(&keycodeTable, (char *) kPtr->keycode,
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&dummy);
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Tcl_SetHashValue(hPtr, kPtr->keysym);
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}
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Tcl_InitHashTable(&vkeyTable, TCL_ONE_WORD_KEYS);
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for (kPtr = vituralkeyArray; kPtr->keycode != 0; kPtr++) {
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hPtr = Tcl_CreateHashEntry(&vkeyTable, (char *) kPtr->keycode,
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&dummy);
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Tcl_SetHashValue(hPtr, kPtr->keysym);
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}
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KCHRPtr = (Ptr) GetScriptManagerVariable(smKCHRCache);
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initialized = 1;
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}
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/*
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*----------------------------------------------------------------------
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*
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* XKeycodeToKeysym --
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*
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* Translate from a system-dependent keycode to a
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* system-independent keysym.
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*
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* Results:
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* Returns the translated keysym, or NoSymbol on failure.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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KeySym
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XKeycodeToKeysym(
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Display* display,
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KeyCode keycode,
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int index)
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{
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register Tcl_HashEntry *hPtr;
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register char c;
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char virtualKey;
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int newKeycode;
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unsigned long dummy, newChar;
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if (!initialized) {
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InitKeyMaps();
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}
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c = keycode & charCodeMask;
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virtualKey = (keycode & keyCodeMask) >> 8;
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/*
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* When determining what keysym to produce we firt check to see if
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* the key is a function key. We then check to see if the character
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* is another non-printing key. Finally, we return the key syms
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* for all ASCI chars.
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*/
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if (c == 0x10) {
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hPtr = Tcl_FindHashEntry(&vkeyTable, (char *) virtualKey);
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if (hPtr != NULL) {
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return (KeySym) Tcl_GetHashValue(hPtr);
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}
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}
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hPtr = Tcl_FindHashEntry(&keycodeTable, (char *) virtualKey);
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if (hPtr != NULL) {
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return (KeySym) Tcl_GetHashValue(hPtr);
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}
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/*
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* Recompute the character based on the Shift key only.
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* TODO: The index may also specify the NUM_LOCK.
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*/
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newKeycode = virtualKey;
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if (index & 0x01) {
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newKeycode += 0x0200;
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}
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dummy = 0;
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newChar = KeyTranslate(KCHRPtr, (short) newKeycode, &dummy);
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c = newChar & charCodeMask;
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if (c >= XK_space && c < XK_asciitilde) {
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return c;
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}
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return NoSymbol;
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}
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/*
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*----------------------------------------------------------------------
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*
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* XLookupString --
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*
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* Retrieve the string equivalent for the given keyboard event.
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*
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* Results:
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* Returns the number of characters stored in buffer_return.
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*
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* Side effects:
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* Retrieves the characters stored in the event and inserts them
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* into buffer_return.
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*
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*----------------------------------------------------------------------
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*/
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int
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XLookupString(
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XKeyEvent* event_struct,
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char* buffer_return,
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int bytes_buffer,
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KeySym* keysym_return,
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XComposeStatus* status_in_out)
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{
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register Tcl_HashEntry *hPtr;
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char string[3];
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char virtualKey;
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char c;
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if (!initialized) {
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InitKeyMaps();
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}
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c = event_struct->keycode & charCodeMask;
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string[0] = c;
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string[1] = '\0';
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/*
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* Just return NULL if the character is a function key or another
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* non-printing key.
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*/
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if (c == 0x10) {
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string[0] = '\0';
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} else {
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virtualKey = (event_struct->keycode & keyCodeMask) >> 8;
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hPtr = Tcl_FindHashEntry(&keycodeTable, (char *) virtualKey);
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if (hPtr != NULL) {
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string[0] = '\0';
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}
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}
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if (buffer_return != NULL) {
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strncpy(buffer_return, string, bytes_buffer);
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}
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return strlen(string);
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}
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/*
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*----------------------------------------------------------------------
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*
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* XGetModifierMapping --
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*
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* Fetch the current keycodes used as modifiers.
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*
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* Results:
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* Returns a new modifier map.
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*
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* Side effects:
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* Allocates a new modifier map data structure.
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*
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*----------------------------------------------------------------------
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*/
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XModifierKeymap *
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XGetModifierMapping(
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Display* display)
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{
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XModifierKeymap * modmap;
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modmap = (XModifierKeymap *) ckalloc(sizeof(XModifierKeymap));
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modmap->max_keypermod = 0;
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modmap->modifiermap = NULL;
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return modmap;
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}
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/*
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*----------------------------------------------------------------------
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*
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* XFreeModifiermap --
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*
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* Deallocate a modifier map that was created by
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* XGetModifierMapping.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Frees the datastructure referenced by modmap.
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*
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*----------------------------------------------------------------------
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*/
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void
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XFreeModifiermap(
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XModifierKeymap *modmap)
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{
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if (modmap->modifiermap != NULL) {
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ckfree((char *) modmap->modifiermap);
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}
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ckfree((char *) modmap);
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}
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/*
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*----------------------------------------------------------------------
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*
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* XKeysymToString, XStringToKeysym --
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*
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* These X window functions map Keysyms to strings & strings to
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* keysyms. However, Tk already does this for the most common keysyms.
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* Therefor, these functions only need to support keysyms that will be
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* specific to the Macintosh. Currently, there are none.
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*
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* Results:
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* None.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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char *
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XKeysymToString(
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KeySym keysym)
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{
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return NULL;
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}
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KeySym
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XStringToKeysym(
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const char* string)
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{
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return NoSymbol;
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}
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/*
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*----------------------------------------------------------------------
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*
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* XKeysymToKeycode --
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*
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* The function XKeysymToKeycode is only used by tkTest.c and
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* currently only implementes the support for keys used in the
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* Tk test suite.
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*
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* Results:
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* None.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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KeyCode
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XKeysymToKeycode(
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Display* display,
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KeySym keysym)
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{
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KeyCode keycode = 0;
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char virtualKeyCode = 0;
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if ((keysym >= XK_space) && (XK_asciitilde)) {
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if (keysym == 'a') {
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virtualKeyCode = 0x00;
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} else if (keysym == 'b' || keysym == 'B') {
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virtualKeyCode = 0x0B;
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} else if (keysym == 'c') {
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virtualKeyCode = 0x08;
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} else if (keysym == 'x' || keysym == 'X') {
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virtualKeyCode = 0x07;
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} else if (keysym == 'z') {
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virtualKeyCode = 0x06;
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} else if (keysym == ' ') {
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virtualKeyCode = 0x31;
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} else if (keysym == XK_Return) {
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virtualKeyCode = 0x24;
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keysym = '\r';
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}
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keycode = keysym + ((virtualKeyCode << 8) & keyCodeMask);
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}
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return keycode;
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}
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