Import Tk 8.5.15 (as of svn r89086)
This commit is contained in:
Zachary Ware
914
macosx/tkMacOSXKeyboard.c
Normal file
914
macosx/tkMacOSXKeyboard.c
Normal file
@@ -0,0 +1,914 @@
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/*
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* tkMacOSXKeyboard.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) 1995-1997 Sun Microsystems, Inc.
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* Copyright 2001-2009, Apple Inc.
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* Copyright (c) 2005-2009 Daniel A. Steffen <das@users.sourceforge.net>
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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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#include "tkMacOSXPrivate.h"
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#include "tkMacOSXEvent.h"
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/*
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* A couple of simple definitions to make code a bit more self-explaining.
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*
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* For the assignments of Mod1==meta==command and Mod2==alt==option, see also
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* tkMacOSXMouseEvent.c.
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*/
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#define LATIN1_MAX 255
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#define MAC_KEYCODE_MAX 0x7F
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#define MAC_KEYCODE_MASK 0x7F
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#define COMMAND_MASK Mod1Mask
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#define OPTION_MASK Mod2Mask
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/*
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* Tables enumerating the special keys defined on Mac keyboards. These are
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* necessary for correct keysym mappings for all keys where the keysyms are
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* not identical with their ASCII or Latin-1 code points.
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*/
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typedef struct {
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int keycode; /* Macintosh keycode. */
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KeySym keysym; /* X windows keysym. */
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} KeyInfo;
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/*
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* Notes on keyArray:
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*
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* 0x34, XK_Return - Powerbooks use this and some keymaps define it.
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*
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* 0x4C, XK_Return - XFree86 and Apple's X11 call this one XK_KP_Enter.
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*
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* 0x47, XK_Clear - This key is NumLock when used on PCs, but Mac
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* applications don't use it like that, nor does Apple's X11.
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*
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* All other keycodes are taken from the published ADB keyboard layouts.
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*/
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static KeyInfo keyArray[] = {
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{0x24, XK_Return},
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{0x30, XK_Tab},
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{0x33, XK_BackSpace},
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{0x34, XK_Return},
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{0x35, XK_Escape},
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{0x47, XK_Clear},
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{0x4C, XK_KP_Enter},
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{0x72, XK_Help},
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{0x73, XK_Home},
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{0x74, XK_Page_Up},
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{0x75, XK_Delete},
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{0x77, XK_End},
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{0x79, XK_Page_Down},
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{0x7B, XK_Left},
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{0x7C, XK_Right},
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{0x7D, XK_Down},
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{0x7E, XK_Up},
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{0, 0}
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};
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static KeyInfo virtualkeyArray[] = {
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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; /* virtualkeyArray hashed by virtual
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* keycode value. */
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static int latin1Table[LATIN1_MAX+1]; /* Reverse mapping table for
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* controls, ASCII and Latin-1. */
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static int keyboardChanged = 1;
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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 (void);
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static void InitLatin1Table(Display *display);
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static int XKeysymToMacKeycode(Display *display, KeySym keysym);
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static int KeycodeToUnicode(UniChar * uniChars, int maxChars,
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UInt16 keyaction, UInt32 keycode, UInt32 modifiers,
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UInt32 * deadKeyStatePtr);
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#pragma mark TKApplication(TKKeyboard)
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@implementation TKApplication(TKKeyboard)
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- (void) keyboardChanged: (NSNotification *) notification
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{
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#ifdef TK_MAC_DEBUG_NOTIFICATIONS
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TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
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#endif
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keyboardChanged = 1;
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}
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@end
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#pragma mark -
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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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* FIXME: As keycodes are defined to be in the limited range 0-127, it
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* would be easier and more efficient to use directly initialized plain
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* arrays and drop this function.
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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(void)
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{
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Tcl_HashEntry *hPtr;
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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, INT2PTR(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 = virtualkeyArray; kPtr->keycode != 0; kPtr++) {
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hPtr = Tcl_CreateHashEntry(&vkeyTable, INT2PTR(kPtr->keycode),
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&dummy);
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Tcl_SetHashValue(hPtr, kPtr->keysym);
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}
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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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* InitLatin1Table --
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*
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* Creates a simple table to be used for mapping from keysyms to keycodes.
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* Always needs to be called before using latin1Table, because the
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* keyboard layout may have changed, and than the table must be
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* re-computed.
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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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* Sets the global latin1Table.
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*
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*----------------------------------------------------------------------
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*/
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static void
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InitLatin1Table(
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Display *display)
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{
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int keycode;
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KeySym keysym;
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int state;
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int modifiers;
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memset(latin1Table, 0, sizeof(latin1Table));
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/*
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* In the common X11 implementations, a keymap has four columns
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* "plain", "Shift", "Mode_switch" and "Mode_switch + Shift". We don't
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* use "Mode_switch", but we use "Option" instead. (This is similar to
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* Apple's X11 implementation, where "Mode_switch" is used as an alias
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* for "Option".)
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*
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* So here we go through all 4 columns of the keymap and find all
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* Latin-1 compatible keycodes. We go through the columns back-to-front
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* from the more exotic columns to the more simple, so that simple
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* keycode-modifier combinations are preferred in the resulting table.
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*/
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for (state = 3; state >= 0; state--) {
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modifiers = 0;
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if (state & 1) {
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modifiers |= shiftKey;
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}
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if (state & 2) {
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modifiers |= optionKey;
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}
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for (keycode = 0; keycode <= MAC_KEYCODE_MAX; keycode++) {
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keysym = XKeycodeToKeysym(display,keycode<<16,state);
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if (keysym <= LATIN1_MAX) {
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latin1Table[keysym] = keycode | modifiers;
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}
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}
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* KeycodeToUnicode --
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*
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* Given MacOS key event data this function generates the Unicode
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* characters. It does this using OS resources and APIs.
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*
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* The parameter deadKeyStatePtr can be NULL, if no deadkey handling is
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* needed.
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*
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* This function is called from XKeycodeToKeysym() in tkMacOSKeyboard.c.
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*
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* Results:
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* The number of characters generated if any, 0 if we are waiting for
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* another byte of a dead-key sequence. Fills in the uniChars array with a
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* Unicode string.
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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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static int
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KeycodeToUnicode(
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UniChar *uniChars,
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int maxChars,
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UInt16 keyaction,
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UInt32 keycode,
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UInt32 modifiers,
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UInt32 *deadKeyStatePtr)
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{
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static const void *uchr = NULL;
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static UInt32 keyboardType = 0;
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UniCharCount actuallength = 0;
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if (keyboardChanged) {
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TISInputSourceRef currentKeyboardLayout =
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TISCopyCurrentKeyboardLayoutInputSource();
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if (currentKeyboardLayout) {
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CFDataRef keyLayoutData = (CFDataRef) TISGetInputSourceProperty(
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currentKeyboardLayout, kTISPropertyUnicodeKeyLayoutData);
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if (keyLayoutData) {
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uchr = CFDataGetBytePtr(keyLayoutData);
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keyboardType = LMGetKbdType();
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}
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CFRelease(currentKeyboardLayout);
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}
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keyboardChanged = 0;
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}
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if (uchr) {
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OptionBits options = 0;
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UInt32 dummyState;
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OSStatus err;
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keycode &= 0xFF;
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modifiers = (modifiers >> 8) & 0xFF;
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if (!deadKeyStatePtr) {
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options = kUCKeyTranslateNoDeadKeysMask;
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dummyState = 0;
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deadKeyStatePtr = &dummyState;
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}
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err = ChkErr(UCKeyTranslate, uchr, keycode, keyaction, modifiers,
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keyboardType, options, deadKeyStatePtr, maxChars,
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&actuallength, uniChars);
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if (!actuallength && *deadKeyStatePtr) {
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/*
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* More data later
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*/
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return 0;
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}
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*deadKeyStatePtr = 0;
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if (err != noErr) {
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actuallength = 0;
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}
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}
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return actuallength;
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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 system-independent
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* 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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int newKeycode;
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UniChar newChar;
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(void) display; /*unused*/
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if (!initialized) {
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InitKeyMaps();
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}
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/*
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* When determining what keysym to produce we first check to see if the key
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* is a function key. We then check to see if the character is another
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* non-printing key. Finally, we return the key syms for all ASCII and
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* Latin-1 chars.
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*/
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newKeycode = keycode >> 16;
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if ((keycode & 0xFFFF) >= 0xF700) { /* NSEvent.h function key unicodes */
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hPtr = Tcl_FindHashEntry(&vkeyTable, INT2PTR(newKeycode));
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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, INT2PTR(newKeycode));
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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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* Add in the Mac modifier flags for shift and option.
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*/
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if (index & 1) {
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newKeycode |= shiftKey;
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}
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if (index & 2) {
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newKeycode |= optionKey;
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}
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newChar = 0;
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KeycodeToUnicode(&newChar, 1, kUCKeyActionDown, newKeycode & 0x00FF,
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newKeycode & 0xFF00, NULL);
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/*
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* X11 keysyms are identical to Unicode for ASCII and Latin-1. Give up for
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* other characters for now.
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*/
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if ((newChar >= XK_space) && (newChar <= LATIN1_MAX)) {
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return newChar;
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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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* TkpGetString --
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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 UTF string.
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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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TkpGetString(
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TkWindow *winPtr, /* Window where event occurred: Needed to get
|
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* input context. */
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XEvent *eventPtr, /* X keyboard event. */
|
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Tcl_DString *dsPtr) /* Uninitialized or empty string to hold
|
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* result. */
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{
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(void) winPtr; /*unused*/
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Tcl_DStringInit(dsPtr);
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return Tcl_DStringAppend(dsPtr, eventPtr->xkey.trans_chars, -1);
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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:
|
||||
* Returns a new modifier map.
|
||||
*
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* Side effects:
|
||||
* 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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(void) display; /*unused*/
|
||||
|
||||
/*
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||||
* 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.
|
||||
*/
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||||
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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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||||
* XFreeModifiermap --
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||||
*
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* Deallocate a modifier map that was created by XGetModifierMapping.
|
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*
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||||
* Results:
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||||
* None.
|
||||
*
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||||
* Side effects:
|
||||
* Frees the datastructure referenced by modmap.
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||||
*
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*----------------------------------------------------------------------
|
||||
*/
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int
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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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ckfree((char *) modmap);
|
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return Success;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* 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)
|
||||
{
|
||||
KeyInfo *kPtr;
|
||||
|
||||
if (keysym <= LATIN1_MAX) {
|
||||
/*
|
||||
* Handle keysyms in the Latin-1 range where keysym and Unicode
|
||||
* character code point are the same.
|
||||
*/
|
||||
|
||||
if (keyboardChanged) {
|
||||
InitLatin1Table(display);
|
||||
keyboardChanged = 0;
|
||||
}
|
||||
return latin1Table[keysym];
|
||||
}
|
||||
|
||||
/*
|
||||
* 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).
|
||||
*/
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* 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 = 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 == NSCommandKeyMask) {
|
||||
return XK_Meta_L;
|
||||
} else if (modifier == NSShiftKeyMask) {
|
||||
return XK_Shift_L;
|
||||
} else if (modifier == NSAlphaShiftKeyMask) {
|
||||
return XK_Caps_Lock;
|
||||
} else if (modifier == NSAlternateKeyMask) {
|
||||
return XK_Alt_L;
|
||||
} else if (modifier == NSControlKeyMask) {
|
||||
return XK_Control_L;
|
||||
} else if (modifier == NSNumericPadKeyMask) {
|
||||
return XK_Num_Lock;
|
||||
} else if (modifier == NSFunctionKeyMask) {
|
||||
return XK_Super_L;
|
||||
/*
|
||||
} else if (modifier == rightShiftKey) {
|
||||
return XK_Shift_R;
|
||||
} else if (modifier == rightOptionKey) {
|
||||
return XK_Alt_R;
|
||||
} else if (modifier == rightControlKey) {
|
||||
return XK_Control_R;
|
||||
*/
|
||||
} else {
|
||||
/*
|
||||
* If we get here, we probably need to implement something new.
|
||||
*/
|
||||
|
||||
return NoSymbol;
|
||||
}
|
||||
}
|
||||
|
||||
/* If nbytes has been set, it's not a function key, but a regular key that
|
||||
has been translated in tkMacOSXKeyEvent.c; just use that. */
|
||||
if (eventPtr->xkey.nbytes) {
|
||||
return eventPtr->xkey.keycode & 0xFFFF;
|
||||
}
|
||||
|
||||
/*
|
||||
* 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;
|
||||
|
||||
#if 0
|
||||
/*
|
||||
* With this, <Alt> and <Meta> become synonyms for <Command> and <Option>
|
||||
* in bindings like they are (and always have been) in the keysyms that
|
||||
* are reported by KeyPress events. But the init scripts like text.tcl
|
||||
* have some disabling bindings for <Meta>, so we don't want this without
|
||||
* some changes in those scripts. See also bug #700311.
|
||||
*/
|
||||
|
||||
dispPtr->altModMask = OPTION_MASK;
|
||||
dispPtr->metaModMask = COMMAND_MASK;
|
||||
#else
|
||||
dispPtr->altModMask = 0;
|
||||
dispPtr->metaModMask = 0;
|
||||
#endif
|
||||
|
||||
/*
|
||||
* 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;
|
||||
}
|
||||
|
||||
/*
|
||||
* Local Variables:
|
||||
* mode: objc
|
||||
* c-basic-offset: 4
|
||||
* fill-column: 79
|
||||
* coding: utf-8
|
||||
* End:
|
||||
*/
|
||||
Reference in New Issue
Block a user