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-rw-r--r--macosx/tkMacOSXKeyboard.c1647
1 files changed, 824 insertions, 823 deletions
diff --git a/macosx/tkMacOSXKeyboard.c b/macosx/tkMacOSXKeyboard.c
index 4e27f0e..c79a2d0 100644
--- a/macosx/tkMacOSXKeyboard.c
+++ b/macosx/tkMacOSXKeyboard.c
@@ -1,823 +1,824 @@
-/*
- * tkMacOSXKeyboard.c --
- *
- * Routines to support keyboard events on the Macintosh.
- *
- * Copyright (c) 1995-1997 Sun Microsystems, Inc.
- * Copyright 2001, Apple Computer, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tkMacOSXKeyboard.c,v 1.14 2004/01/25 12:03:59 cc_benny Exp $
- */
-
-#include "tkInt.h"
-#include "X11/Xlib.h"
-#include "X11/keysym.h"
-#include <Carbon/Carbon.h>
-#include "tkMacOSXInt.h"
-#include "tkMacOSXEvent.h" /* TkMacOSXKeycodeToUnicode() FIXME: That
- * function should probably move here. */
-
-/*
- * A couple of simple definitions to make code a bit more self-explaining.
- *
- * For the assignments of Mod1==alt==command and Mod2==meta==option, see also
- * tkMacOSXMouseEvent.c.
- */
-
-#define LATIN1_MAX 255
-#define MAC_KEYCODE_MAX 0x7F
-#define MAC_KEYCODE_MASK 0x7F
-#define ALT_MASK Mod1Mask
-#define OPTION_MASK Mod2Mask
-
-
-/*
- * Tables enumerating the special keys defined on Mac keyboards. These are
- * necessary for correct keysym mappings for all keys where the keysyms are
- * not identical with their ASCII or Latin-1 code points.
- */
-
-typedef struct {
- int keycode; /* Macintosh keycode. */
- KeySym keysym; /* X windows keysym. */
-} KeyInfo;
-
-/*
- * Notes on keyArray:
- *
- * 0x34, XK_Return - Powerbooks use this and some keymaps define it.
- *
- * 0x4C, XK_Return - XFree86 and Apple's X11 call this one XK_KP_Enter.
- *
- * 0x47, XK_Clear - This key is NumLock when used on PCs, but Mac
- * applications don't use it like that, nor does Apple's X11.
- *
- * All other keycodes are taken from the published ADB keyboard layouts.
- */
-
-static KeyInfo keyArray[] = {
- {0x24, XK_Return},
- {0x30, XK_Tab},
- {0x33, XK_BackSpace},
- {0x34, XK_Return},
- {0x35, XK_Escape},
-
- {0x47, XK_Clear},
- {0x4C, XK_Return},
-
- {0x72, XK_Help},
- {0x73, XK_Home},
- {0x74, XK_Page_Up},
- {0x75, XK_Delete},
- {0x77, XK_End},
- {0x79, XK_Page_Down},
-
- {0x7B, XK_Left},
- {0x7C, XK_Right},
- {0x7D, XK_Down},
- {0x7E, XK_Up},
-
- {0, 0}
-};
-
-static KeyInfo virtualkeyArray[] = {
- {122, XK_F1},
- {120, XK_F2},
- {99, XK_F3},
- {118, XK_F4},
- {96, XK_F5},
- {97, XK_F6},
- {98, XK_F7},
- {100, XK_F8},
- {101, XK_F9},
- {109, XK_F10},
- {103, XK_F11},
- {111, XK_F12},
- {105, XK_F13},
- {107, XK_F14},
- {113, XK_F15},
- {0, 0}
-};
-
-static int initialized = 0;
-static Tcl_HashTable keycodeTable; /* keyArray hashed by keycode value. */
-static Tcl_HashTable vkeyTable; /* virtualkeyArray hashed by virtual
- * keycode value. */
-
-static int latin1Table[LATIN1_MAX+1]; /* Reverse mapping table for
- * controls, ASCII and Latin-1. */
-
-/*
- * Prototypes for static functions used in this file.
- */
-
-static void InitKeyMaps (void);
-static void InitLatin1Table(Display *display);
-static int XKeysymToMacKeycode(Display *display, KeySym keysym);
-
-
-/*
- *----------------------------------------------------------------------
- *
- * InitKeyMaps --
- *
- * Creates hash tables used by some of the functions in this file.
- *
- * FIXME: As keycodes are defined to be in the limited range 0-127, it
- * would be easier and more efficient to use directly initialized plain
- * arrays and drop this function.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Allocates memory & creates some hash tables.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-InitKeyMaps()
-{
- Tcl_HashEntry *hPtr;
- KeyInfo *kPtr;
- int dummy;
-
- Tcl_InitHashTable(&keycodeTable, TCL_ONE_WORD_KEYS);
- for (kPtr = keyArray; kPtr->keycode != 0; kPtr++) {
- hPtr = Tcl_CreateHashEntry(&keycodeTable, (char *) kPtr->keycode,
- &dummy);
- Tcl_SetHashValue(hPtr, kPtr->keysym);
- }
- Tcl_InitHashTable(&vkeyTable, TCL_ONE_WORD_KEYS);
- for (kPtr = virtualkeyArray; kPtr->keycode != 0; kPtr++) {
- hPtr = Tcl_CreateHashEntry(&vkeyTable, (char *) kPtr->keycode,
- &dummy);
- Tcl_SetHashValue(hPtr, kPtr->keysym);
- }
- initialized = 1;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * InitLatin1Table --
- *
- * Creates a simple table to be used for mapping from keysyms to
- * keycodes. Always needs to be called before using latin1Table,
- * because the keyboard layout may have changed, and than the table must
- * be re-computed.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Sets the global latin1Table.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-InitLatin1Table(
- Display *display)
-{
- static Boolean latin1_initialized = false;
- static SInt16 lastKeyLayoutID = -1;
-
- SInt16 keyScript;
- SInt16 keyLayoutID;
-
- keyScript = GetScriptManagerVariable(smKeyScript);
- keyLayoutID = GetScriptVariable(keyScript,smScriptKeys);
-
- if (!latin1_initialized || (lastKeyLayoutID != keyLayoutID)) {
- int keycode;
- KeySym keysym;
- int state;
- int modifiers;
-
- latin1_initialized = true;
- lastKeyLayoutID = keyLayoutID;
-
- memset(latin1Table, 0, sizeof(latin1Table));
-
- /*
- * In the common X11 implementations, a keymap has four columns
- * "plain", "Shift", "Mode_switch" and "Mode_switch + Shift". We
- * don't use "Mode_switch", but we use "Option" instead. (This is
- * similar to Apple's X11 implementation, where "Mode_switch" is used
- * as an alias for "Option".)
- *
- * So here we go through all 4 columns of the keymap and find all
- * Latin-1 compatible keycodes. We go through the columns
- * back-to-front from the more exotic columns to the more simple, so
- * that simple keycode-modifier combinations are preferred in the
- * resulting table.
- */
-
- for (state = 3; state >= 0; state--) {
- modifiers = 0;
- if (state & 1) {
- modifiers |= shiftKey;
- }
- if (state & 2) {
- modifiers |= optionKey;
- }
-
- for (keycode = 0; keycode <= MAC_KEYCODE_MAX; keycode++) {
- keysym = XKeycodeToKeysym(display,keycode<<16,state);
- if (keysym <= LATIN1_MAX) {
- latin1Table[keysym] = keycode | modifiers;
- }
- }
- }
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * XKeycodeToKeysym --
- *
- * Translate from a system-dependent keycode to a system-independent
- * keysym.
- *
- * Results:
- * Returns the translated keysym, or NoSymbol on failure.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-KeySym
-XKeycodeToKeysym(
- Display* display,
- KeyCode keycode,
- int index)
-{
- register Tcl_HashEntry *hPtr;
- int newKeycode;
- UniChar newChar;
-
- (void) display; /*unused*/
-
- if (!initialized) {
- InitKeyMaps();
- }
-
- /*
- * When determining what keysym to produce we first check to see if the
- * key is a function key. We then check to see if the character is
- * another non-printing key. Finally, we return the key syms for all
- * ASCII and Latin-1 chars.
- */
-
- newKeycode = keycode >> 16;
-
- if ((keycode & 0xFFFF) == 0x10) {
- hPtr = Tcl_FindHashEntry(&vkeyTable, (char *) newKeycode);
- if (hPtr != NULL) {
- return (KeySym) Tcl_GetHashValue(hPtr);
- }
- }
- hPtr = Tcl_FindHashEntry(&keycodeTable, (char *) newKeycode);
- if (hPtr != NULL) {
- return (KeySym) Tcl_GetHashValue(hPtr);
- }
-
- /*
- * Add in the Mac modifier flags for shift and option.
- */
-
- if (index & 1) {
- newKeycode |= shiftKey;
- }
- if (index & 2) {
- newKeycode |= optionKey;
- }
-
- newChar = 0;
- TkMacOSXKeycodeToUnicode(
- &newChar, 1, kEventRawKeyDown,
- newKeycode & 0x00FF, newKeycode & 0xFF00, NULL);
-
- /*
- * X11 keysyms are identical to Unicode for ASCII and Latin-1. Give up
- * for other characters for now.
- */
-
- if ((newChar >= XK_space) && (newChar <= LATIN1_MAX)) {
- return newChar;
- }
-
- return NoSymbol;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpGetString --
- *
- * Retrieve the string equivalent for the given keyboard event.
- *
- * Results:
- * Returns the UTF string.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-char *
-TkpGetString(
- TkWindow *winPtr, /* Window where event occurred: Needed to get
- * input context. */
- XEvent *eventPtr, /* X keyboard event. */
- Tcl_DString *dsPtr) /* Uninitialized or empty string to hold
- * result. */
-{
- (void) winPtr; /*unused*/
- Tcl_DStringInit(dsPtr);
- return Tcl_DStringAppend(dsPtr, eventPtr->xkey.trans_chars, -1);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * XGetModifierMapping --
- *
- * Fetch the current keycodes used as modifiers.
- *
- * Results:
- * Returns a new modifier map.
- *
- * Side effects:
- * Allocates a new modifier map data structure.
- *
- *----------------------------------------------------------------------
- */
-
-XModifierKeymap *
-XGetModifierMapping(
- Display* display)
-{
- XModifierKeymap * modmap;
-
- (void) display; /*unused*/
-
- /*
- * MacOSX doesn't use the key codes for the modifiers for anything, and
- * we don't generate them either. So there is no modifier map.
- */
-
- modmap = (XModifierKeymap *) ckalloc(sizeof(XModifierKeymap));
- modmap->max_keypermod = 0;
- modmap->modifiermap = NULL;
- return modmap;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * XFreeModifiermap --
- *
- * Deallocate a modifier map that was created by XGetModifierMapping.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Frees the datastructure referenced by modmap.
- *
- *----------------------------------------------------------------------
- */
-
-void
-XFreeModifiermap(
- XModifierKeymap *modmap)
-{
- if (modmap->modifiermap != NULL) {
- ckfree((char *) modmap->modifiermap);
- }
- ckfree((char *) modmap);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * XKeysymToString, XStringToKeysym --
- *
- * These X window functions map keysyms to strings & strings to keysyms.
- * However, Tk already does this for the most common keysyms.
- * Therefore, these functions only need to support keysyms that will be
- * specific to the Macintosh. Currently, there are none.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-char *
-XKeysymToString(
- KeySym keysym)
-{
- return NULL;
-}
-
-KeySym
-XStringToKeysym(
- const char* string)
-{
- return NoSymbol;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * XKeysymToMacKeycode --
- *
- * An internal function like XKeysymToKeycode but only generating the
- * Mac specific keycode plus the modifiers Shift and Option.
- *
- * Results:
- * A Mac keycode with the actual keycode in the low byte and Mac-style
- * modifier bits in the high byte.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-XKeysymToMacKeycode(
- Display *display,
- KeySym keysym)
-{
- if (keysym <= LATIN1_MAX) {
-
- /*
- * Handle keysyms in the Latin-1 range where keysym and Unicode
- * character code point are the same.
- */
-
- InitLatin1Table(display);
- return latin1Table[keysym];
-
- } else {
-
- /*
- * Handle special keys from our exception tables. Don't mind if this
- * is slow, neither the test suite nor [event generate] need to be
- * optimized (we hope).
- */
-
- KeyInfo *kPtr;
-
- for (kPtr = keyArray; kPtr->keycode != 0; kPtr++) {
- if (kPtr->keysym == keysym) {
- return kPtr->keycode;
- }
- }
- for (kPtr = virtualkeyArray; kPtr->keycode != 0; kPtr++) {
- if (kPtr->keysym == keysym) {
- return kPtr->keycode;
- }
- }
-
- /*
- * For other keysyms (not Latin-1 and not special keys), we'd need a
- * generic keysym-to-unicode table. We don't have that, so we give
- * up here.
- */
-
- return 0;
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * XKeysymToKeycode --
- *
- * The function XKeysymToKeycode takes an X11 keysym and converts it
- * into a Mac keycode. It is in the stubs table for compatibility but
- * not used anywhere in the core.
- *
- * Results:
- * A 32 bit keycode with the the mac keycode (without modifiers) in the
- * higher 16 bits of the keycode and the ASCII or Latin-1 code in the
- * lower 8 bits of the keycode.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-KeyCode
-XKeysymToKeycode(
- Display* display,
- KeySym keysym)
-{
- int macKeycode = XKeysymToMacKeycode(display, keysym);
- KeyCode result;
-
- /*
- * See also TkpSetKeycodeAndState. The 0x0010 magic is used in
- * XKeycodeToKeysym. For special keys like XK_Return the lower 8 bits of
- * the keysym are usually a related ASCII control code.
- */
-
- if ((keysym >= XK_F1) && (keysym <= XK_F35)) {
- result = 0x0010;
- } else {
- result = 0x00FF & keysym;
- }
- result |= (macKeycode & MAC_KEYCODE_MASK) << 16;
-
- return result;
-}
-
-/*
-NB: Keep this commented code for a moment for reference.
-
- if ((keysym >= XK_space) && (XK_asciitilde)) {
- if (keysym == 'a') {
- virtualKeyCode = 0x00;
- } else if (keysym == 'b' || keysym == 'B') {
- virtualKeyCode = 0x0B;
- } else if (keysym == 'c') {
- virtualKeyCode = 0x08;
- } else if (keysym == 'x' || keysym == 'X') {
- virtualKeyCode = 0x07;
- } else if (keysym == 'z') {
- virtualKeyCode = 0x06;
- } else if (keysym == ' ') {
- virtualKeyCode = 0x31;
- } else if (keysym == XK_Return) {
- virtualKeyCode = 0x24;
- keysym = '\r';
- }
- keycode = keysym + (virtualKeyCode <<16);
- }
-
- return keycode;
-*/
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpSetKeycodeAndState --
- *
- * The function TkpSetKeycodeAndState takes a keysym and fills in the
- * appropriate members of an XEvent. It is similar to XKeysymToKeycode,
- * but it also sets the modifier mask in the XEvent. It is used by
- * [event generate] and it is in the stubs table.
- *
- * Results:
- * Fills an XEvent, sets the member xkey.keycode with a keycode
- * formatted the same as XKeysymToKeycode and the member xkey.state with
- * the modifiers implied by the keysym. Also fills in xkey.trans_chars,
- * so that the actual characters can be retrieved later.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpSetKeycodeAndState(
- Tk_Window tkwin,
- KeySym keysym,
- XEvent *eventPtr)
-{
- if (keysym == NoSymbol) {
- eventPtr->xkey.keycode = 0;
- } else {
- Display *display = Tk_Display(tkwin);
- int macKeycode = XKeysymToMacKeycode(display, keysym);
-
- /*
- * See also XKeysymToKeycode.
- */
-
- if ((keysym >= XK_F1) && (keysym <= XK_F35)) {
- eventPtr->xkey.keycode = 0x0010;
- } else {
- eventPtr->xkey.keycode = 0x00FF & keysym;
- }
- eventPtr->xkey.keycode |= (macKeycode & MAC_KEYCODE_MASK) << 16;
-
- if (shiftKey & macKeycode) {
- eventPtr->xkey.state |= ShiftMask;
- }
- if (optionKey & macKeycode) {
- eventPtr->xkey.state |= OPTION_MASK;
- }
-
- if (keysym <= LATIN1_MAX) {
- eventPtr->xkey.trans_chars[0] = keysym;
- eventPtr->xkey.trans_chars[1] = 0;
- } else {
- eventPtr->xkey.trans_chars[0] = 0;
- }
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpGetKeySym --
- *
- * Given an X KeyPress or KeyRelease event, map the keycode in the event
- * into a keysym.
- *
- * Results:
- * The return value is the keysym corresponding to eventPtr, or NoSymbol
- * if no matching keysym could be found.
- *
- * Side effects:
- * In the first call for a given display, keycode-to-keysym maps get
- * loaded.
- *
- *----------------------------------------------------------------------
- */
-
-KeySym
-TkpGetKeySym(
- TkDisplay *dispPtr, /* Display in which to map keycode. */
- XEvent *eventPtr) /* Description of X event. */
-{
- KeySym sym;
- int index;
-
- /*
- * Refresh the mapping information if it's stale.
- */
-
- if (dispPtr->bindInfoStale) {
- TkpInitKeymapInfo(dispPtr);
- }
-
- /*
- * Handle pure modifier keys specially. We use -1 as a signal for
- * this.
- */
-
- if (eventPtr->xany.send_event == -1) {
- int modifier = eventPtr->xkey.keycode;
- if (modifier == cmdKey) {
- return XK_Alt_L;
- } else if (modifier == shiftKey) {
- return XK_Shift_L;
- } else if (modifier == alphaLock) {
- return XK_Caps_Lock;
- } else if (modifier == optionKey) {
- return XK_Meta_L;
- } else if (modifier == controlKey) {
- return XK_Control_L;
- } else if (modifier == rightShiftKey) {
- return XK_Shift_R;
- } else if (modifier == rightOptionKey) {
- return XK_Meta_R;
- } else if (modifier == rightControlKey) {
- return XK_Control_R;
- } else {
-
- /*
- * If we get here, we probably need to implement something new.
- */
-
- return NoSymbol;
- }
- }
-
- /*
- * Figure out which of the four slots in the keymap vector to use for
- * this key. Refer to Xlib documentation for more info on how this
- * computation works. (Note: We use "Option" in keymap columns 2 and 3
- * where other implementations have "Mode_switch".)
- */
-
- index = 0;
-
- /*
- * We want Option key combinations to use their base chars as keysyms, so
- * we ignore the option modifier here.
- */
-
-#if 0
- if (eventPtr->xkey.state & OPTION_MASK) {
- index |= 2;
- }
-#endif
-
- if ((eventPtr->xkey.state & ShiftMask)
- || (/* (dispPtr->lockUsage != LU_IGNORE)
- && */ (eventPtr->xkey.state & LockMask))) {
- index |= 1;
- }
-
- /*
- * First try of the actual translation.
- */
-
- sym = XKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode, index);
-
- /*
- * Special handling: If the key was shifted because of Lock, but lock is
- * only caps lock, not shift lock, and the shifted keysym isn't
- * upper-case alphabetic, then switch back to the unshifted keysym.
- */
-
- if ((index & 1) && !(eventPtr->xkey.state & ShiftMask)
- /*&& (dispPtr->lockUsage == LU_CAPS)*/ ) {
-
- /*
- * FIXME: Keysyms are only identical to Unicode for ASCII and
- * Latin-1, so we can't use Tcl_UniCharIsUpper() for keysyms outside
- * that range. This may be a serious problem here.
- */
-
- if ((sym == NoSymbol) || (sym > LATIN1_MAX)
- || !Tcl_UniCharIsUpper(sym)) {
- index &= ~1;
- sym = XKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode,
- index);
- }
- }
-
- /*
- * Another bit of special handling: If this is a shifted key and there is
- * no keysym defined, then use the keysym for the unshifted key.
- */
-
- if ((index & 1) && (sym == NoSymbol)) {
- sym = XKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode,
- index & ~1);
- }
- return sym;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * TkpInitKeymapInfo --
- *
- * This procedure is invoked to scan keymap information to recompute
- * stuff that's important for binding, such as the modifier key (if any)
- * that corresponds to the "Mode_switch" keysym.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Keymap-related information in dispPtr is updated.
- *
- *--------------------------------------------------------------
- */
-
-void
-TkpInitKeymapInfo(
- TkDisplay *dispPtr) /* Display for which to recompute keymap
- * information. */
-{
- dispPtr->bindInfoStale = 0;
-
- /*
- * Behaviours that are variable on X11 are defined constant on MacOSX.
- * lockUsage is only used above in TkpGetKeySym(), nowhere else
- * currently. There is no offical "Mode_switch" key.
- */
-
- dispPtr->lockUsage = LU_CAPS;
- dispPtr->modeModMask = 0;
- dispPtr->altModMask = ALT_MASK;
- dispPtr->metaModMask = OPTION_MASK;
-
- /*
- * MacOSX doesn't use the keycodes for the modifiers for anything, and we
- * don't generate them either (the keycodes actually given in the
- * simulated modifier events are bogus). So there is no modifier map.
- * If we ever want to simulate real modifier keycodes, the list will be
- * constant in the Carbon implementation.
- */
-
- if (dispPtr->modKeyCodes != NULL) {
- ckfree((char *) dispPtr->modKeyCodes);
- }
- dispPtr->numModKeyCodes = 0;
- dispPtr->modKeyCodes = NULL;
-}
+/*
+ * tkMacOSXKeyboard.c --
+ *
+ * Routines to support keyboard events on the Macintosh.
+ *
+ * Copyright (c) 1995-1997 Sun Microsystems, Inc.
+ * Copyright 2001, Apple Computer, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * RCS: @(#) $Id: tkMacOSXKeyboard.c,v 1.15 2004/02/07 16:21:08 cc_benny Exp $
+ */
+
+#include "tkInt.h"
+#include "X11/Xlib.h"
+#include "X11/keysym.h"
+#include <Carbon/Carbon.h>
+#include "tkMacOSXInt.h"
+#include "tkMacOSXEvent.h" /* TkMacOSXKeycodeToUnicode() FIXME: That
+ * function should probably move here. */
+
+/*
+ * A couple of simple definitions to make code a bit more self-explaining.
+ *
+ * For the assignments of Mod1==alt==command and Mod2==meta==option, see also
+ * tkMacOSXMouseEvent.c.
+ */
+
+#define LATIN1_MAX 255
+#define MAC_KEYCODE_MAX 0x7F
+#define MAC_KEYCODE_MASK 0x7F
+#define ALT_MASK Mod1Mask
+#define OPTION_MASK Mod2Mask
+
+
+/*
+ * Tables enumerating the special keys defined on Mac keyboards. These are
+ * necessary for correct keysym mappings for all keys where the keysyms are
+ * not identical with their ASCII or Latin-1 code points.
+ */
+
+typedef struct {
+ int keycode; /* Macintosh keycode. */
+ KeySym keysym; /* X windows keysym. */
+} KeyInfo;
+
+/*
+ * Notes on keyArray:
+ *
+ * 0x34, XK_Return - Powerbooks use this and some keymaps define it.
+ *
+ * 0x4C, XK_Return - XFree86 and Apple's X11 call this one XK_KP_Enter.
+ *
+ * 0x47, XK_Clear - This key is NumLock when used on PCs, but Mac
+ * applications don't use it like that, nor does Apple's X11.
+ *
+ * All other keycodes are taken from the published ADB keyboard layouts.
+ */
+
+static KeyInfo keyArray[] = {
+ {0x24, XK_Return},
+ {0x30, XK_Tab},
+ {0x33, XK_BackSpace},
+ {0x34, XK_Return},
+ {0x35, XK_Escape},
+
+ {0x47, XK_Clear},
+ {0x4C, XK_Return},
+
+ {0x72, XK_Help},
+ {0x73, XK_Home},
+ {0x74, XK_Page_Up},
+ {0x75, XK_Delete},
+ {0x77, XK_End},
+ {0x79, XK_Page_Down},
+
+ {0x7B, XK_Left},
+ {0x7C, XK_Right},
+ {0x7D, XK_Down},
+ {0x7E, XK_Up},
+
+ {0, 0}
+};
+
+static KeyInfo virtualkeyArray[] = {
+ {122, XK_F1},
+ {120, XK_F2},
+ {99, XK_F3},
+ {118, XK_F4},
+ {96, XK_F5},
+ {97, XK_F6},
+ {98, XK_F7},
+ {100, XK_F8},
+ {101, XK_F9},
+ {109, XK_F10},
+ {103, XK_F11},
+ {111, XK_F12},
+ {105, XK_F13},
+ {107, XK_F14},
+ {113, XK_F15},
+ {0, 0}
+};
+
+static int initialized = 0;
+static Tcl_HashTable keycodeTable; /* keyArray hashed by keycode value. */
+static Tcl_HashTable vkeyTable; /* virtualkeyArray hashed by virtual
+ * keycode value. */
+
+static int latin1Table[LATIN1_MAX+1]; /* Reverse mapping table for
+ * controls, ASCII and Latin-1. */
+
+/*
+ * Prototypes for static functions used in this file.
+ */
+
+static void InitKeyMaps (void);
+static void InitLatin1Table(Display *display);
+static int XKeysymToMacKeycode(Display *display, KeySym keysym);
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * InitKeyMaps --
+ *
+ * Creates hash tables used by some of the functions in this file.
+ *
+ * FIXME: As keycodes are defined to be in the limited range 0-127, it
+ * would be easier and more efficient to use directly initialized plain
+ * arrays and drop this function.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Allocates memory & creates some hash tables.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+InitKeyMaps()
+{
+ Tcl_HashEntry *hPtr;
+ KeyInfo *kPtr;
+ int dummy;
+
+ Tcl_InitHashTable(&keycodeTable, TCL_ONE_WORD_KEYS);
+ for (kPtr = keyArray; kPtr->keycode != 0; kPtr++) {
+ hPtr = Tcl_CreateHashEntry(&keycodeTable, (char *) kPtr->keycode,
+ &dummy);
+ Tcl_SetHashValue(hPtr, kPtr->keysym);
+ }
+ Tcl_InitHashTable(&vkeyTable, TCL_ONE_WORD_KEYS);
+ for (kPtr = virtualkeyArray; kPtr->keycode != 0; kPtr++) {
+ hPtr = Tcl_CreateHashEntry(&vkeyTable, (char *) kPtr->keycode,
+ &dummy);
+ Tcl_SetHashValue(hPtr, kPtr->keysym);
+ }
+ initialized = 1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * InitLatin1Table --
+ *
+ * Creates a simple table to be used for mapping from keysyms to
+ * keycodes. Always needs to be called before using latin1Table,
+ * because the keyboard layout may have changed, and than the table must
+ * be re-computed.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Sets the global latin1Table.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+InitLatin1Table(
+ Display *display)
+{
+ static Boolean latin1_initialized = false;
+ static SInt16 lastKeyLayoutID = -1;
+
+ SInt16 keyScript;
+ SInt16 keyLayoutID;
+
+ keyScript = GetScriptManagerVariable(smKeyScript);
+ keyLayoutID = GetScriptVariable(keyScript,smScriptKeys);
+
+ if (!latin1_initialized || (lastKeyLayoutID != keyLayoutID)) {
+ int keycode;
+ KeySym keysym;
+ int state;
+ int modifiers;
+
+ latin1_initialized = true;
+ lastKeyLayoutID = keyLayoutID;
+
+ memset(latin1Table, 0, sizeof(latin1Table));
+
+ /*
+ * In the common X11 implementations, a keymap has four columns
+ * "plain", "Shift", "Mode_switch" and "Mode_switch + Shift". We
+ * don't use "Mode_switch", but we use "Option" instead. (This is
+ * similar to Apple's X11 implementation, where "Mode_switch" is used
+ * as an alias for "Option".)
+ *
+ * So here we go through all 4 columns of the keymap and find all
+ * Latin-1 compatible keycodes. We go through the columns
+ * back-to-front from the more exotic columns to the more simple, so
+ * that simple keycode-modifier combinations are preferred in the
+ * resulting table.
+ */
+
+ for (state = 3; state >= 0; state--) {
+ modifiers = 0;
+ if (state & 1) {
+ modifiers |= shiftKey;
+ }
+ if (state & 2) {
+ modifiers |= optionKey;
+ }
+
+ for (keycode = 0; keycode <= MAC_KEYCODE_MAX; keycode++) {
+ keysym = XKeycodeToKeysym(display,keycode<<16,state);
+ if (keysym <= LATIN1_MAX) {
+ latin1Table[keysym] = keycode | modifiers;
+ }
+ }
+ }
+ }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XKeycodeToKeysym --
+ *
+ * Translate from a system-dependent keycode to a system-independent
+ * keysym.
+ *
+ * Results:
+ * Returns the translated keysym, or NoSymbol on failure.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+KeySym
+XKeycodeToKeysym(
+ Display* display,
+ KeyCode keycode,
+ int index)
+{
+ register Tcl_HashEntry *hPtr;
+ int newKeycode;
+ UniChar newChar;
+
+ (void) display; /*unused*/
+
+ if (!initialized) {
+ InitKeyMaps();
+ }
+
+ /*
+ * When determining what keysym to produce we first check to see if the
+ * key is a function key. We then check to see if the character is
+ * another non-printing key. Finally, we return the key syms for all
+ * ASCII and Latin-1 chars.
+ */
+
+ newKeycode = keycode >> 16;
+
+ if ((keycode & 0xFFFF) == 0x10) {
+ hPtr = Tcl_FindHashEntry(&vkeyTable, (char *) newKeycode);
+ if (hPtr != NULL) {
+ return (KeySym) Tcl_GetHashValue(hPtr);
+ }
+ }
+ hPtr = Tcl_FindHashEntry(&keycodeTable, (char *) newKeycode);
+ if (hPtr != NULL) {
+ return (KeySym) Tcl_GetHashValue(hPtr);
+ }
+
+ /*
+ * Add in the Mac modifier flags for shift and option.
+ */
+
+ if (index & 1) {
+ newKeycode |= shiftKey;
+ }
+ if (index & 2) {
+ newKeycode |= optionKey;
+ }
+
+ newChar = 0;
+ TkMacOSXKeycodeToUnicode(
+ &newChar, 1, kEventRawKeyDown,
+ newKeycode & 0x00FF, newKeycode & 0xFF00, NULL);
+
+ /*
+ * X11 keysyms are identical to Unicode for ASCII and Latin-1. Give up
+ * for other characters for now.
+ */
+
+ if ((newChar >= XK_space) && (newChar <= LATIN1_MAX)) {
+ return newChar;
+ }
+
+ return NoSymbol;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpGetString --
+ *
+ * Retrieve the string equivalent for the given keyboard event.
+ *
+ * Results:
+ * Returns the UTF string.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+char *
+TkpGetString(
+ TkWindow *winPtr, /* Window where event occurred: Needed to get
+ * input context. */
+ XEvent *eventPtr, /* X keyboard event. */
+ Tcl_DString *dsPtr) /* Uninitialized or empty string to hold
+ * result. */
+{
+ (void) winPtr; /*unused*/
+ Tcl_DStringInit(dsPtr);
+ return Tcl_DStringAppend(dsPtr, eventPtr->xkey.trans_chars, -1);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XGetModifierMapping --
+ *
+ * Fetch the current keycodes used as modifiers.
+ *
+ * Results:
+ * Returns a new modifier map.
+ *
+ * Side effects:
+ * Allocates a new modifier map data structure.
+ *
+ *----------------------------------------------------------------------
+ */
+
+XModifierKeymap *
+XGetModifierMapping(
+ Display* display)
+{
+ XModifierKeymap * modmap;
+
+ (void) display; /*unused*/
+
+ /*
+ * MacOSX doesn't use the key codes for the modifiers for anything, and
+ * we don't generate them either. So there is no modifier map.
+ */
+
+ modmap = (XModifierKeymap *) ckalloc(sizeof(XModifierKeymap));
+ modmap->max_keypermod = 0;
+ modmap->modifiermap = NULL;
+ return modmap;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XFreeModifiermap --
+ *
+ * Deallocate a modifier map that was created by XGetModifierMapping.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Frees the datastructure referenced by modmap.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XFreeModifiermap(
+ XModifierKeymap *modmap)
+{
+ if (modmap->modifiermap != NULL) {
+ ckfree((char *) modmap->modifiermap);
+ }
+ ckfree((char *) modmap);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XKeysymToString, XStringToKeysym --
+ *
+ * These X window functions map keysyms to strings & strings to keysyms.
+ * However, Tk already does this for the most common keysyms.
+ * Therefore, these functions only need to support keysyms that will be
+ * specific to the Macintosh. Currently, there are none.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+char *
+XKeysymToString(
+ KeySym keysym)
+{
+ return NULL;
+}
+
+KeySym
+XStringToKeysym(
+ const char* string)
+{
+ return NoSymbol;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XKeysymToMacKeycode --
+ *
+ * An internal function like XKeysymToKeycode but only generating the
+ * Mac specific keycode plus the modifiers Shift and Option.
+ *
+ * Results:
+ * A Mac keycode with the actual keycode in the low byte and Mac-style
+ * modifier bits in the high byte.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+XKeysymToMacKeycode(
+ Display *display,
+ KeySym keysym)
+{
+ if (keysym <= LATIN1_MAX) {
+
+ /*
+ * Handle keysyms in the Latin-1 range where keysym and Unicode
+ * character code point are the same.
+ */
+
+ InitLatin1Table(display);
+ return latin1Table[keysym];
+
+ } else {
+
+ /*
+ * Handle special keys from our exception tables. Don't mind if this
+ * is slow, neither the test suite nor [event generate] need to be
+ * optimized (we hope).
+ */
+
+ KeyInfo *kPtr;
+
+ for (kPtr = keyArray; kPtr->keycode != 0; kPtr++) {
+ if (kPtr->keysym == keysym) {
+ return kPtr->keycode;
+ }
+ }
+ for (kPtr = virtualkeyArray; kPtr->keycode != 0; kPtr++) {
+ if (kPtr->keysym == keysym) {
+ return kPtr->keycode;
+ }
+ }
+
+ /*
+ * For other keysyms (not Latin-1 and not special keys), we'd need a
+ * generic keysym-to-unicode table. We don't have that, so we give
+ * up here.
+ */
+
+ return 0;
+ }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XKeysymToKeycode --
+ *
+ * The function XKeysymToKeycode takes an X11 keysym and converts it
+ * into a Mac keycode. It is in the stubs table for compatibility but
+ * not used anywhere in the core.
+ *
+ * Results:
+ * A 32 bit keycode with the the mac keycode (without modifiers) in the
+ * higher 16 bits of the keycode and the ASCII or Latin-1 code in the
+ * lower 8 bits of the keycode.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+KeyCode
+XKeysymToKeycode(
+ Display* display,
+ KeySym keysym)
+{
+ int macKeycode = XKeysymToMacKeycode(display, keysym);
+ KeyCode result;
+
+ /*
+ * See also TkpSetKeycodeAndState. The 0x0010 magic is used in
+ * XKeycodeToKeysym. For special keys like XK_Return the lower 8 bits of
+ * the keysym are usually a related ASCII control code.
+ */
+
+ if ((keysym >= XK_F1) && (keysym <= XK_F35)) {
+ result = 0x0010;
+ } else {
+ result = 0x00FF & keysym;
+ }
+ result |= (macKeycode & MAC_KEYCODE_MASK) << 16;
+
+ return result;
+}
+
+/*
+NB: Keep this commented code for a moment for reference.
+
+ if ((keysym >= XK_space) && (XK_asciitilde)) {
+ if (keysym == 'a') {
+ virtualKeyCode = 0x00;
+ } else if (keysym == 'b' || keysym == 'B') {
+ virtualKeyCode = 0x0B;
+ } else if (keysym == 'c') {
+ virtualKeyCode = 0x08;
+ } else if (keysym == 'x' || keysym == 'X') {
+ virtualKeyCode = 0x07;
+ } else if (keysym == 'z') {
+ virtualKeyCode = 0x06;
+ } else if (keysym == ' ') {
+ virtualKeyCode = 0x31;
+ } else if (keysym == XK_Return) {
+ virtualKeyCode = 0x24;
+ keysym = '\r';
+ }
+ keycode = keysym + (virtualKeyCode <<16);
+ }
+
+ return keycode;
+*/
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpSetKeycodeAndState --
+ *
+ * The function TkpSetKeycodeAndState takes a keysym and fills in the
+ * appropriate members of an XEvent. It is similar to XKeysymToKeycode,
+ * but it also sets the modifier mask in the XEvent. It is used by
+ * [event generate] and it is in the stubs table.
+ *
+ * Results:
+ * Fills an XEvent, sets the member xkey.keycode with a keycode
+ * formatted the same as XKeysymToKeycode and the member xkey.state with
+ * the modifiers implied by the keysym. Also fills in xkey.trans_chars,
+ * so that the actual characters can be retrieved later.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkpSetKeycodeAndState(
+ Tk_Window tkwin,
+ KeySym keysym,
+ XEvent *eventPtr)
+{
+ if (keysym == NoSymbol) {
+ eventPtr->xkey.keycode = 0;
+ } else {
+ Display *display = Tk_Display(tkwin);
+ int macKeycode = XKeysymToMacKeycode(display, keysym);
+
+ /*
+ * See also XKeysymToKeycode.
+ */
+
+ if ((keysym >= XK_F1) && (keysym <= XK_F35)) {
+ eventPtr->xkey.keycode = 0x0010;
+ } else {
+ eventPtr->xkey.keycode = 0x00FF & keysym;
+ }
+ eventPtr->xkey.keycode |= (macKeycode & MAC_KEYCODE_MASK) << 16;
+
+ if (shiftKey & macKeycode) {
+ eventPtr->xkey.state |= ShiftMask;
+ }
+ if (optionKey & macKeycode) {
+ eventPtr->xkey.state |= OPTION_MASK;
+ }
+
+ if (keysym <= LATIN1_MAX) {
+ int done;
+ done = Tcl_UniCharToUtf(keysym,eventPtr->xkey.trans_chars);
+ eventPtr->xkey.trans_chars[done] = 0;
+ } else {
+ eventPtr->xkey.trans_chars[0] = 0;
+ }
+ }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpGetKeySym --
+ *
+ * Given an X KeyPress or KeyRelease event, map the keycode in the event
+ * into a keysym.
+ *
+ * Results:
+ * The return value is the keysym corresponding to eventPtr, or NoSymbol
+ * if no matching keysym could be found.
+ *
+ * Side effects:
+ * In the first call for a given display, keycode-to-keysym maps get
+ * loaded.
+ *
+ *----------------------------------------------------------------------
+ */
+
+KeySym
+TkpGetKeySym(
+ TkDisplay *dispPtr, /* Display in which to map keycode. */
+ XEvent *eventPtr) /* Description of X event. */
+{
+ KeySym sym;
+ int index;
+
+ /*
+ * Refresh the mapping information if it's stale.
+ */
+
+ if (dispPtr->bindInfoStale) {
+ TkpInitKeymapInfo(dispPtr);
+ }
+
+ /*
+ * Handle pure modifier keys specially. We use -1 as a signal for
+ * this.
+ */
+
+ if (eventPtr->xany.send_event == -1) {
+ int modifier = eventPtr->xkey.keycode;
+ if (modifier == cmdKey) {
+ return XK_Alt_L;
+ } else if (modifier == shiftKey) {
+ return XK_Shift_L;
+ } else if (modifier == alphaLock) {
+ return XK_Caps_Lock;
+ } else if (modifier == optionKey) {
+ return XK_Meta_L;
+ } else if (modifier == controlKey) {
+ return XK_Control_L;
+ } else if (modifier == rightShiftKey) {
+ return XK_Shift_R;
+ } else if (modifier == rightOptionKey) {
+ return XK_Meta_R;
+ } else if (modifier == rightControlKey) {
+ return XK_Control_R;
+ } else {
+
+ /*
+ * If we get here, we probably need to implement something new.
+ */
+
+ return NoSymbol;
+ }
+ }
+
+ /*
+ * Figure out which of the four slots in the keymap vector to use for
+ * this key. Refer to Xlib documentation for more info on how this
+ * computation works. (Note: We use "Option" in keymap columns 2 and 3
+ * where other implementations have "Mode_switch".)
+ */
+
+ index = 0;
+
+ /*
+ * We want Option key combinations to use their base chars as keysyms, so
+ * we ignore the option modifier here.
+ */
+
+#if 0
+ if (eventPtr->xkey.state & OPTION_MASK) {
+ index |= 2;
+ }
+#endif
+
+ if ((eventPtr->xkey.state & ShiftMask)
+ || (/* (dispPtr->lockUsage != LU_IGNORE)
+ && */ (eventPtr->xkey.state & LockMask))) {
+ index |= 1;
+ }
+
+ /*
+ * First try of the actual translation.
+ */
+
+ sym = XKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode, index);
+
+ /*
+ * Special handling: If the key was shifted because of Lock, but lock is
+ * only caps lock, not shift lock, and the shifted keysym isn't
+ * upper-case alphabetic, then switch back to the unshifted keysym.
+ */
+
+ if ((index & 1) && !(eventPtr->xkey.state & ShiftMask)
+ /*&& (dispPtr->lockUsage == LU_CAPS)*/ ) {
+
+ /*
+ * FIXME: Keysyms are only identical to Unicode for ASCII and
+ * Latin-1, so we can't use Tcl_UniCharIsUpper() for keysyms outside
+ * that range. This may be a serious problem here.
+ */
+
+ if ((sym == NoSymbol) || (sym > LATIN1_MAX)
+ || !Tcl_UniCharIsUpper(sym)) {
+ index &= ~1;
+ sym = XKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode,
+ index);
+ }
+ }
+
+ /*
+ * Another bit of special handling: If this is a shifted key and there is
+ * no keysym defined, then use the keysym for the unshifted key.
+ */
+
+ if ((index & 1) && (sym == NoSymbol)) {
+ sym = XKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode,
+ index & ~1);
+ }
+ return sym;
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkpInitKeymapInfo --
+ *
+ * This procedure is invoked to scan keymap information to recompute
+ * stuff that's important for binding, such as the modifier key (if any)
+ * that corresponds to the "Mode_switch" keysym.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Keymap-related information in dispPtr is updated.
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+TkpInitKeymapInfo(
+ TkDisplay *dispPtr) /* Display for which to recompute keymap
+ * information. */
+{
+ dispPtr->bindInfoStale = 0;
+
+ /*
+ * Behaviours that are variable on X11 are defined constant on MacOSX.
+ * lockUsage is only used above in TkpGetKeySym(), nowhere else
+ * currently. There is no offical "Mode_switch" key.
+ */
+
+ dispPtr->lockUsage = LU_CAPS;
+ dispPtr->modeModMask = 0;
+ dispPtr->altModMask = ALT_MASK;
+ dispPtr->metaModMask = OPTION_MASK;
+
+ /*
+ * MacOSX doesn't use the keycodes for the modifiers for anything, and we
+ * don't generate them either (the keycodes actually given in the
+ * simulated modifier events are bogus). So there is no modifier map.
+ * If we ever want to simulate real modifier keycodes, the list will be
+ * constant in the Carbon implementation.
+ */
+
+ if (dispPtr->modKeyCodes != NULL) {
+ ckfree((char *) dispPtr->modKeyCodes);
+ }
+ dispPtr->numModKeyCodes = 0;
+ dispPtr->modKeyCodes = NULL;
+}
generated by cgit v0.12 at 2024-11-10 23:36:56 (GMT)