summaryrefslogtreecommitdiffstats
path: root/macosx/tkMacOSXKeyboard.c
diff options
context:
space:
mode:
Diffstat (limited to 'macosx/tkMacOSXKeyboard.c')
-rw-r--r--macosx/tkMacOSXKeyboard.c650
1 files changed, 650 insertions, 0 deletions
diff --git a/macosx/tkMacOSXKeyboard.c b/macosx/tkMacOSXKeyboard.c
new file mode 100644
index 0000000..db5d679
--- /dev/null
+++ b/macosx/tkMacOSXKeyboard.c
@@ -0,0 +1,650 @@
+/*
+ * 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 1.2 2002/08/31 06:12:30 das Exp $
+ */
+
+#include "tkInt.h"
+#include "X11/Xlib.h"
+#include "X11/keysym.h"
+#include <Carbon/Carbon.h>
+#include "tkMacOSXInt.h"
+
+typedef struct {
+ int keycode; /* Macintosh keycode */
+ KeySym keysym; /* X windows Keysym */
+} KeyInfo;
+
+static KeyInfo keyArray[] = {
+ {0x4C, XK_Return},
+ {0x24, XK_Return},
+ {0x33, XK_BackSpace},
+ {0x75, XK_Delete},
+ {0x30, XK_Tab},
+ {0x74, XK_Page_Up},
+ {0x79, XK_Page_Down},
+ {0x73, XK_Home},
+ {0x77, XK_End},
+ {0x7B, XK_Left},
+ {0x7C, XK_Right},
+ {0x7E, XK_Up},
+ {0x7D, XK_Down},
+ {0x72, XK_Help},
+ {0x35, XK_Escape},
+ {0x47, XK_Clear},
+ {0, 0}
+};
+
+static KeyInfo vituralkeyArray[] = {
+ {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; /* vituralkeyArray hashed by virtual
+ keycode value. */
+static Ptr KCHRPtr; /* Pointer to 'KCHR' resource. */
+
+/*
+ * Prototypes for static functions used in this file.
+ */
+static void InitKeyMaps _ANSI_ARGS_((void));
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * InitKeyMaps --
+ *
+ * Creates hash tables used by some of the functions in this file.
+ *
+ * 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 = vituralkeyArray; kPtr->keycode != 0; kPtr++) {
+ hPtr = Tcl_CreateHashEntry(&vkeyTable, (char *) kPtr->keycode,
+ &dummy);
+ Tcl_SetHashValue(hPtr, kPtr->keysym);
+ }
+ KCHRPtr = (Ptr) GetScriptManagerVariable(smKCHRCache);
+ if (!KCHRPtr){
+ fprintf(stderr,"GetScriptManagerVariable failed\n");
+ }
+ initialized = 1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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 c;
+ int virtualKey;
+ int newKeycode;
+ unsigned long dummy, newChar;
+
+ if (!initialized) {
+ InitKeyMaps();
+ }
+ virtualKey = (char) (keycode >> 16);
+ c = (keycode) & 0xffff;
+ if (c > 255) {
+ return NoSymbol;
+ }
+
+ /*
+ * 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 ASCI chars.
+ */
+ if (c == 0x10) {
+ hPtr = Tcl_FindHashEntry(&vkeyTable, (char *) virtualKey);
+ if (hPtr != NULL) {
+ return (KeySym) Tcl_GetHashValue(hPtr);
+ }
+ }
+ hPtr = Tcl_FindHashEntry(&keycodeTable, (char *) virtualKey);
+ if (hPtr != NULL) {
+ return (KeySym) Tcl_GetHashValue(hPtr);
+ }
+
+ /*
+ * Recompute the character based on the Shift key only.
+ * TODO: The index may also specify the NUM_LOCK.
+ */
+ newKeycode = virtualKey;
+ if (index & 0x01) {
+ newKeycode += 0x0200;
+ }
+ dummy = 0;
+ newChar = KeyTranslate(KCHRPtr, (short) newKeycode, &dummy);
+ c = newChar & charCodeMask;
+
+ if (c >= XK_space && c < XK_asciitilde) {
+ return c;
+ }
+
+ 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. */
+{
+ register Tcl_HashEntry *hPtr;
+ char string[3];
+ int virtualKey;
+ int c, len;
+
+ if (!initialized) {
+ InitKeyMaps();
+ }
+
+ Tcl_DStringInit(dsPtr);
+
+ virtualKey = (char) (eventPtr->xkey.keycode >> 16);
+ c = (eventPtr->xkey.keycode) & 0xffff;
+
+ if (c < 256) {
+ string[0] = (char) c;
+ len = 1;
+ } else {
+ string[0] = (char) (c >> 8);
+ string[1] = (char) c;
+ len = 2;
+ }
+ /*
+ * Just return NULL if the character is a function key or another
+ * non-printing key.
+ */
+ if (c == 0x10) {
+ len = 0;
+ } else {
+ hPtr = Tcl_FindHashEntry(&keycodeTable, (char *) virtualKey);
+ if (hPtr != NULL) {
+ len = 0;
+ }
+ }
+ return Tcl_ExternalToUtfDString(TkMacOSXCarbonEncoding, string,
+ len, dsPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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;
+
+ 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.
+ * Therefor, 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;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XKeysymToKeycode --
+ *
+ * The function XKeysymToKeycode is only used by tkTest.c and
+ * currently only implementes the support for keys used in the
+ * Tk test suite.
+ * FIXME - This is no longer true. This function is now used in
+ * "event generate" so we really should make it work.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+KeyCode
+XKeysymToKeycode(
+ Display* display,
+ KeySym keysym)
+{
+ KeyCode keycode = 0;
+ char virtualKeyCode = 0;
+
+ 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;
+}
+
+/*
+ * When mapping from a keysym to a keycode, need
+ * information about the modifier state that should be used
+ * so that when they call XKeycodeToKeysym taking into
+ * account the xkey.state, they will get back the original
+ * keysym.
+ */
+
+void
+TkpSetKeycodeAndState(tkwin, keySym, eventPtr)
+ Tk_Window tkwin;
+ KeySym keySym;
+ XEvent *eventPtr;
+{
+ Display *display;
+ int state;
+ KeyCode keycode;
+
+ display = Tk_Display(tkwin);
+
+ if (keySym == NoSymbol) {
+ keycode = 0;
+ } else {
+ keycode = XKeysymToKeycode(display, keySym);
+ }
+ if (keycode != 0) {
+ for (state = 0; state < 4; state++) {
+ if (XKeycodeToKeysym(display, keycode, state) == keySym) {
+ if (state & 1) {
+ eventPtr->xkey.state |= ShiftMask;
+ }
+ if (state & 2) {
+ TkDisplay *dispPtr;
+
+ dispPtr = ((TkWindow *) tkwin)->dispPtr;
+ eventPtr->xkey.state |= dispPtr->modeModMask;
+ }
+ break;
+ }
+ }
+ }
+ eventPtr->xkey.keycode = keycode;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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(dispPtr, eventPtr)
+ 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);
+ }
+
+ /*
+ * 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.
+ */
+
+ index = 0;
+ if (eventPtr->xkey.state & dispPtr->modeModMask) {
+ index = 2;
+ }
+ if ((eventPtr->xkey.state & ShiftMask)
+ || ((dispPtr->lockUsage != LU_IGNORE)
+ && (eventPtr->xkey.state & LockMask))) {
+ index += 1;
+ }
+ 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)) {
+ if (!(((sym >= XK_A) && (sym <= XK_Z))
+ || ((sym >= XK_Agrave) && (sym <= XK_Odiaeresis))
+ || ((sym >= XK_Ooblique) && (sym <= XK_Thorn)))) {
+ 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 "mode
+ * switch".
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Keymap-related information in dispPtr is updated.
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+TkpInitKeymapInfo(dispPtr)
+ TkDisplay *dispPtr; /* Display for which to recompute keymap
+ * information. */
+{
+ XModifierKeymap *modMapPtr;
+ KeyCode *codePtr;
+ KeySym keysym;
+ int count, i, j, max, arraySize;
+#define KEYCODE_ARRAY_SIZE 20
+
+ dispPtr->bindInfoStale = 0;
+ modMapPtr = XGetModifierMapping(dispPtr->display);
+
+ /*
+ * Check the keycodes associated with the Lock modifier. If
+ * any of them is associated with the XK_Shift_Lock modifier,
+ * then Lock has to be interpreted as Shift Lock, not Caps Lock.
+ */
+
+ dispPtr->lockUsage = LU_IGNORE;
+ codePtr = modMapPtr->modifiermap + modMapPtr->max_keypermod*LockMapIndex;
+ for (count = modMapPtr->max_keypermod; count > 0; count--, codePtr++) {
+ if (*codePtr == 0) {
+ continue;
+ }
+ keysym = XKeycodeToKeysym(dispPtr->display, *codePtr, 0);
+ if (keysym == XK_Shift_Lock) {
+ dispPtr->lockUsage = LU_SHIFT;
+ break;
+ }
+ if (keysym == XK_Caps_Lock) {
+ dispPtr->lockUsage = LU_CAPS;
+ break;
+ }
+ }
+
+ /*
+ * Look through the keycodes associated with modifiers to see if
+ * the the "mode switch", "meta", or "alt" keysyms are associated
+ * with any modifiers. If so, remember their modifier mask bits.
+ */
+
+ dispPtr->modeModMask = 0;
+ dispPtr->metaModMask = 0;
+ dispPtr->altModMask = 0;
+ codePtr = modMapPtr->modifiermap;
+ max = 8*modMapPtr->max_keypermod;
+ for (i = 0; i < max; i++, codePtr++) {
+ if (*codePtr == 0) {
+ continue;
+ }
+ keysym = XKeycodeToKeysym(dispPtr->display, *codePtr, 0);
+ if (keysym == XK_Mode_switch) {
+ dispPtr->modeModMask |= ShiftMask << (i/modMapPtr->max_keypermod);
+ }
+ if ((keysym == XK_Meta_L) || (keysym == XK_Meta_R)) {
+ dispPtr->metaModMask |= ShiftMask << (i/modMapPtr->max_keypermod);
+ }
+ if ((keysym == XK_Alt_L) || (keysym == XK_Alt_R)) {
+ dispPtr->altModMask |= ShiftMask << (i/modMapPtr->max_keypermod);
+ }
+ }
+
+ /*
+ * Create an array of the keycodes for all modifier keys.
+ */
+
+ if (dispPtr->modKeyCodes != NULL) {
+ ckfree((char *) dispPtr->modKeyCodes);
+ }
+ dispPtr->numModKeyCodes = 0;
+ arraySize = KEYCODE_ARRAY_SIZE;
+ dispPtr->modKeyCodes = (KeyCode *) ckalloc((unsigned)
+ (KEYCODE_ARRAY_SIZE * sizeof(KeyCode)));
+ for (i = 0, codePtr = modMapPtr->modifiermap; i < max; i++, codePtr++) {
+ if (*codePtr == 0) {
+ continue;
+ }
+
+ /*
+ * Make sure that the keycode isn't already in the array.
+ */
+
+ for (j = 0; j < dispPtr->numModKeyCodes; j++) {
+ if (dispPtr->modKeyCodes[j] == *codePtr) {
+ goto nextModCode;
+ }
+ }
+ if (dispPtr->numModKeyCodes >= arraySize) {
+ KeyCode *new;
+
+ /*
+ * Ran out of space in the array; grow it.
+ */
+
+ arraySize *= 2;
+ new = (KeyCode *) ckalloc((unsigned)
+ (arraySize * sizeof(KeyCode)));
+ memcpy((VOID *) new, (VOID *) dispPtr->modKeyCodes,
+ (dispPtr->numModKeyCodes * sizeof(KeyCode)));
+ ckfree((char *) dispPtr->modKeyCodes);
+ dispPtr->modKeyCodes = new;
+ }
+ dispPtr->modKeyCodes[dispPtr->numModKeyCodes] = *codePtr;
+ dispPtr->numModKeyCodes++;
+ nextModCode: continue;
+ }
+ XFreeModifiermap(modMapPtr);
+}
generated by cgit v0.12 at 2024-11-17 02:09:34 (GMT)