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authorWilliam Joye <wjoye@cfa.harvard.edu>2018-11-26 20:06:09 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2018-11-26 20:06:09 (GMT)
commit3dcee315fb784599a02aaafe3a83cfea0c1d1fe9 (patch)
tree894dd8bc12dda8554293a6c5f4fb7eae06151f08 /tk8.6/unix/tkUnixKey.c
parent36aac058541aebc86ae5f19a7e59fa892ac81cf1 (diff)
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update tcl/tk
Diffstat (limited to 'tk8.6/unix/tkUnixKey.c')
-rw-r--r--tk8.6/unix/tkUnixKey.c509
1 files changed, 0 insertions, 509 deletions
diff --git a/tk8.6/unix/tkUnixKey.c b/tk8.6/unix/tkUnixKey.c
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index 23c4aa4..0000000
--- a/tk8.6/unix/tkUnixKey.c
+++ /dev/null
@@ -1,509 +0,0 @@
-/*
- * tkUnixKey.c --
- *
- * This file contains routines for dealing with international keyboard
- * input.
- *
- * Copyright (c) 1997 by Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tkInt.h"
-
-/*
-** Bug [3607830]: Before using Xkb, it must be initialized. TkpOpenDisplay
-** does this and sets the USE_XKB flag if xkb is supported.
-** (should this be function ptr?)
-*/
-#ifdef HAVE_XKBKEYCODETOKEYSYM
-# include <X11/XKBlib.h>
-#else
-# define XkbKeycodeToKeysym(D,K,G,L) XKeycodeToKeysym(D,K,L)
-#endif
-#define TkKeycodeToKeysym(D,K,G,L) \
- ((D)->flags & TK_DISPLAY_USE_XKB) ? \
- XkbKeycodeToKeysym((D)->display,K,G,L) : \
- XKeycodeToKeysym((D)->display,K,L)
-
-/*
- * Prototypes for local functions defined in this file:
- */
-
-/*
- *----------------------------------------------------------------------
- *
- * Tk_SetCaretPos --
- *
- * This enables correct placement of the XIM caret. This is called by
- * widgets to indicate their cursor placement. This is currently only
- * used for over-the-spot XIM.
- *
- *----------------------------------------------------------------------
- */
-
-void
-Tk_SetCaretPos(
- Tk_Window tkwin,
- int x,
- int y,
- int height)
-{
- TkWindow *winPtr = (TkWindow *) tkwin;
- TkDisplay *dispPtr = winPtr->dispPtr;
-
- if ((dispPtr->caret.winPtr == winPtr)
- && (dispPtr->caret.x == x)
- && (dispPtr->caret.y == y)
- && (dispPtr->caret.height == height)) {
- return;
- }
-
- dispPtr->caret.winPtr = winPtr;
- dispPtr->caret.x = x;
- dispPtr->caret.y = y;
- dispPtr->caret.height = height;
-
- /*
- * Adjust the XIM caret position.
- */
-
-#ifdef TK_USE_INPUT_METHODS
- if ((dispPtr->flags & TK_DISPLAY_USE_IM)
- && (dispPtr->inputStyle & XIMPreeditPosition)
- && (winPtr->inputContext != NULL)) {
- XVaNestedList preedit_attr;
- XPoint spot;
-
- spot.x = dispPtr->caret.x;
- spot.y = dispPtr->caret.y + dispPtr->caret.height;
- preedit_attr = XVaCreateNestedList(0, XNSpotLocation, &spot, NULL);
- XSetICValues(winPtr->inputContext, XNPreeditAttributes, preedit_attr,
- NULL);
- XFree(preedit_attr);
- }
-#endif
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpGetString --
- *
- * Retrieve the UTF string associated with a keyboard event.
- *
- * Results:
- * Returns the UTF string.
- *
- * Side effects:
- * Stores the input string in the specified Tcl_DString. Modifies the
- * internal input state. This routine can only be called once for a given
- * event.
- *
- *----------------------------------------------------------------------
- */
-
-const char *
-TkpGetString(
- TkWindow *winPtr, /* Window where event occurred */
- XEvent *eventPtr, /* X keyboard event. */
- Tcl_DString *dsPtr) /* Initialized, empty string to hold result. */
-{
- int len;
- Tcl_DString buf;
- TkKeyEvent *kePtr = (TkKeyEvent *) eventPtr;
-
- /*
- * If we have the value cached already, use it now. [Bug 1373712]
- */
-
- if (kePtr->charValuePtr != NULL) {
- Tcl_DStringSetLength(dsPtr, kePtr->charValueLen);
- memcpy(Tcl_DStringValue(dsPtr), kePtr->charValuePtr,
- (unsigned) kePtr->charValueLen+1);
- return Tcl_DStringValue(dsPtr);
- }
-
-#ifdef TK_USE_INPUT_METHODS
- if ((winPtr->dispPtr->flags & TK_DISPLAY_USE_IM)
- && (winPtr->inputContext != NULL)
- && (eventPtr->type == KeyPress)) {
- Status status;
-
-#if X_HAVE_UTF8_STRING
- Tcl_DStringSetLength(dsPtr, TCL_DSTRING_STATIC_SIZE-1);
- len = Xutf8LookupString(winPtr->inputContext, &eventPtr->xkey,
- Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr),
- &kePtr->keysym, &status);
-
- if (status == XBufferOverflow) {
- /*
- * Expand buffer and try again.
- */
-
- Tcl_DStringSetLength(dsPtr, len);
- len = Xutf8LookupString(winPtr->inputContext, &eventPtr->xkey,
- Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr),
- &kePtr->keysym, &status);
- }
- if ((status != XLookupChars) && (status != XLookupBoth)) {
- len = 0;
- }
- Tcl_DStringSetLength(dsPtr, len);
-#else /* !X_HAVE_UTF8_STRING */
- /*
- * Overallocate the dstring to the maximum stack amount.
- */
-
- Tcl_DStringInit(&buf);
- Tcl_DStringSetLength(&buf, TCL_DSTRING_STATIC_SIZE-1);
- len = XmbLookupString(winPtr->inputContext, &eventPtr->xkey,
- Tcl_DStringValue(&buf), Tcl_DStringLength(&buf),
- &kePtr->keysym, &status);
-
- /*
- * If the buffer wasn't big enough, grow the buffer and try again.
- */
-
- if (status == XBufferOverflow) {
- Tcl_DStringSetLength(&buf, len);
- len = XmbLookupString(winPtr->inputContext, &eventPtr->xkey,
- Tcl_DStringValue(&buf), len, &kePtr->keysym, &status);
- }
- if ((status != XLookupChars) && (status != XLookupBoth)) {
- len = 0;
- }
- Tcl_DStringSetLength(&buf, len);
- Tcl_ExternalToUtfDString(NULL, Tcl_DStringValue(&buf), len, dsPtr);
- Tcl_DStringFree(&buf);
-#endif /* X_HAVE_UTF8_STRING */
- } else
-#endif /* TK_USE_INPUT_METHODS */
- {
- /*
- * Fall back to convert a keyboard event to a UTF-8 string using
- * XLookupString. This is used when input methods are turned off and
- * for KeyRelease events.
- *
- * Note: XLookupString() normally returns a single ISO Latin 1 or
- * ASCII control character.
- */
-
- Tcl_DStringInit(&buf);
- Tcl_DStringSetLength(&buf, TCL_DSTRING_STATIC_SIZE-1);
- len = XLookupString(&eventPtr->xkey, Tcl_DStringValue(&buf),
- TCL_DSTRING_STATIC_SIZE, &kePtr->keysym, 0);
- Tcl_DStringValue(&buf)[len] = '\0';
-
- if (len == 1) {
- len = Tcl_UniCharToUtf((unsigned char) Tcl_DStringValue(&buf)[0],
- Tcl_DStringValue(dsPtr));
- Tcl_DStringSetLength(dsPtr, len);
- } else {
- /*
- * len > 1 should only happen if someone has called XRebindKeysym.
- * Assume UTF-8.
- */
-
- Tcl_DStringSetLength(dsPtr, len);
- strncpy(Tcl_DStringValue(dsPtr), Tcl_DStringValue(&buf), len);
- }
- }
-
- /*
- * Cache the string in the event so that if/when we return to this
- * function, we will be able to produce it without asking X. This stops us
- * from having to reenter the XIM engine. [Bug 1373712]
- */
-
- kePtr->charValuePtr = ckalloc(len + 1);
- kePtr->charValueLen = len;
- memcpy(kePtr->charValuePtr, Tcl_DStringValue(dsPtr), (unsigned) len + 1);
- return Tcl_DStringValue(dsPtr);
-}
-
-/*
- * When mapping from a keysym to a keycode, need information about the
- * modifier state to be used so that when they call TkKeycodeToKeysym taking
- * into account the xkey.state, they will get back the original keysym.
- */
-
-void
-TkpSetKeycodeAndState(
- Tk_Window tkwin,
- KeySym keySym,
- XEvent *eventPtr)
-{
- TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;
- int state;
- KeyCode keycode;
-
- if (keySym == NoSymbol) {
- keycode = 0;
- } else {
- keycode = XKeysymToKeycode(dispPtr->display, keySym);
- }
- eventPtr->xkey.keycode = keycode;
- if (keycode != 0) {
- for (state = 0; state < 4; state++) {
- if (XLookupKeysym(&eventPtr->xkey, state) == keySym) {
- if (state & 1) {
- eventPtr->xkey.state |= ShiftMask;
- }
- if (state & 2) {
- 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(
- TkDisplay *dispPtr, /* Display in which to map keycode. */
- XEvent *eventPtr) /* Description of X event. */
-{
- KeySym sym;
- int index;
- TkKeyEvent* kePtr = (TkKeyEvent*) eventPtr;
-
- /*
- * Refresh the mapping information if it's stale. This must happen before
- * we do any input method processing. [Bug 3599312]
- */
-
- if (dispPtr->bindInfoStale) {
- TkpInitKeymapInfo(dispPtr);
- }
-
-#ifdef TK_USE_INPUT_METHODS
- /*
- * If input methods are active, we may already have determined a keysym.
- * Return it.
- */
-
- if (eventPtr->type == KeyPress && dispPtr
- && (dispPtr->flags & TK_DISPLAY_USE_IM)) {
- if (kePtr->charValuePtr == NULL) {
- Tcl_DString ds;
- TkWindow *winPtr = (TkWindow *)
- Tk_IdToWindow(eventPtr->xany.display, eventPtr->xany.window);
-
- Tcl_DStringInit(&ds);
- (void) TkpGetString(winPtr, eventPtr, &ds);
- Tcl_DStringFree(&ds);
- }
- if (kePtr->charValuePtr != NULL) {
- return kePtr->keysym;
- }
- }
-#endif
-
- /*
- * 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 = TkKeycodeToKeysym(dispPtr, eventPtr->xkey.keycode, 0,
- 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 = TkKeycodeToKeysym(dispPtr, eventPtr->xkey.keycode,
- 0, 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 = TkKeycodeToKeysym(dispPtr, eventPtr->xkey.keycode,
- 0, index & ~1);
- }
- return sym;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * TkpInitKeymapInfo --
- *
- * This function 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(
- 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 = TkKeycodeToKeysym(dispPtr, *codePtr, 0, 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 = TkKeycodeToKeysym(dispPtr, *codePtr, 0, 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(dispPtr->modKeyCodes);
- }
- dispPtr->numModKeyCodes = 0;
- arraySize = KEYCODE_ARRAY_SIZE;
- dispPtr->modKeyCodes = ckalloc(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) {
- /*
- * 'continue' the outer loop.
- */
-
- goto nextModCode;
- }
- }
- if (dispPtr->numModKeyCodes >= arraySize) {
- KeyCode *newCodes;
-
- /*
- * Ran out of space in the array; grow it.
- */
-
- arraySize *= 2;
- newCodes = ckalloc(arraySize * sizeof(KeyCode));
- memcpy(newCodes, dispPtr->modKeyCodes,
- dispPtr->numModKeyCodes * sizeof(KeyCode));
- ckfree(dispPtr->modKeyCodes);
- dispPtr->modKeyCodes = newCodes;
- }
- dispPtr->modKeyCodes[dispPtr->numModKeyCodes] = *codePtr;
- dispPtr->numModKeyCodes++;
- nextModCode:
- continue;
- }
- XFreeModifiermap(modMapPtr);
-}
-
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 4
- * fill-column: 78
- * End:
- */