qkeymapper_x11.cpp

奇趣公司比较新的qt/emd版本

    // translate the key again using each permutation of consumedModifiers
    for (int i = 1; i < numPerms; ++i) {
        uint val = 0;
        for (int j = 0; j < num1Bits; ++j) {
            if (i & (1 << j))
                val |= (1 << pos1Bits[j]);
        }

        if ((xmodifiers & val) != val)
            continue;

        KeySym sym;
        uint mods;
        if (!qt_XTranslateKey(&coreDesc, xkeycode, val, &mods, &sym))
            continue;

        // translate sym -> code
        Qt::KeyboardModifiers modifiers = 0;
        int code = -1;
        chars.clear();
        count = 0;
        // mask out the modifiers needed to translate keycode
        text = translateKeySym(sym, xmodifiers & ~val, code, modifiers, chars, count);
        if (code == -1) {
            if (text.isEmpty())
                continue;
            code = text.at(0).unicode();
        }

        if (code && code < 0xfffe)
            code = QChar(code).toUpper().unicode();
        if (code == baseCode)
            continue;

        result += (code | modifiers);
    }

#if 0
    qDebug() << "possibleKeysCore()" << hex << result;
#endif
    return result;
}

// for parsing the _XKB_RULES_NAMES property
enum {
    RulesFileIndex = 0,
    ModelIndex = 1,
    LayoutIndex = 2,
    VariantIndex = 3,
    OptionsIndex = 4
};

void QKeyMapperPrivate::clearMappings()
{
#ifndef QT_NO_XKB
    if (useXKB) {
        // try to determine the layout name and input direction by reading the _XKB_RULES_NAMES property off
        // the root window
        QByteArray layoutName;
        QByteArray variantName;

        Atom type = XNone;
        int format = 0;
        ulong nitems = 0;
        ulong bytesAfter = 0;
        uchar *data = 0;
        if (XGetWindowProperty(X11->display, RootWindow(X11->display, 0), ATOM(_XKB_RULES_NAMES), 0, 1024,
                               false, XA_STRING, &type, &format, &nitems, &bytesAfter, &data) == Success
            && type == XA_STRING && format == 8 && nitems > 2) {
            /*
              index 0 == rules file name
              index 1 == model name
              index 2 == layout name
              index 3 == variant name
              index 4 == options
            */
            char *names[5] = { 0, 0, 0, 0, 0 };
            char *p = reinterpret_cast<char *>(data), *end = p + nitems;
            int i = 0;
            do {
                names[i++] = p;
                p += qstrlen(p) + 1;
            } while (p < end);

            layoutName = QByteArray::fromRawData(names[2], qstrlen(names[2]));
            variantName = QByteArray::fromRawData(names[3], qstrlen(names[3]));
        }

        // ### ???
        // if (keyboardLayoutName.isEmpty())
        //     qWarning("Qt: unable to determine keyboard layout, please talk to [e-mail]"); ?

        getLocaleAndDirection(&keyboardInputLocale,
                              &keyboardInputDirection,
                              layoutName,
                              variantName);

#if 0
        qDebug() << "keyboard input locale ="
                 << keyboardInputLocale.name()
                 << "direction ="
                 << keyboardInputDirection;
#endif

        if (data)
            XFree(data);
    } else
#endif // QT_NO_XKB
        {
            if (coreDesc.keysyms)
                XFree(coreDesc.keysyms);

            coreDesc.min_keycode = 8;
            coreDesc.max_keycode = 255;
            XDisplayKeycodes(X11->display, &coreDesc.min_keycode, &coreDesc.max_keycode);

            coreDesc.keysyms_per_keycode = 0;
            coreDesc.keysyms = XGetKeyboardMapping(X11->display,
                                                   coreDesc.min_keycode,
                                                   coreDesc.max_keycode - coreDesc.min_keycode,
                                                   &coreDesc.keysyms_per_keycode);

#if 0
            qDebug() << "min_keycode =" << coreDesc.min_keycode;
            qDebug() << "max_keycode =" << coreDesc.max_keycode;
            qDebug() << "keysyms_per_keycode =" << coreDesc.keysyms_per_keycode;
            qDebug() << "keysyms =" << coreDesc.keysyms;
#endif

            // ### cannot get/guess the locale with the core protocol
            keyboardInputLocale = QLocale::c();
            // ### could examine group 0 for RTL keys
            keyboardInputDirection = Qt::LeftToRight;
        }

    // set default modifier masks
    qt_alt_mask = Mod1Mask;
    qt_meta_mask = Mod4Mask;
    qt_super_mask = 0;
    qt_hyper_mask = 0;
    qt_mode_switch_mask = 0;

    // look at the modifier mapping, and get the correct masks for alt, meta, super, hyper, and mode_switch
#ifndef QT_NO_XKB
    if (useXKB) {
        XkbDescPtr xkbDesc = XkbGetMap(X11->display, XkbAllClientInfoMask, XkbUseCoreKbd);
        for (int i = xkbDesc->min_key_code; i < xkbDesc->max_key_code; ++i) {
            const uint mask = xkbDesc->map->modmap ? xkbDesc->map->modmap[i] : 0;
            if (mask == 0) {
                // key is not bound to a modifier
                continue;
            }

            for (int j = 0; j < XkbKeyGroupsWidth(xkbDesc, i); ++j) {
                KeySym keySym = XkbKeySym(xkbDesc, i, j);
                if (keySym == NoSymbol)
                    continue;
                SETMASK(keySym, mask);
            }
        }
        XkbFreeKeyboard(xkbDesc, XkbAllComponentsMask, true);
    } else
#endif // QT_NO_XKB
        {
            coreDesc.lock_meaning = NoSymbol;

            XModifierKeymap *map = XGetModifierMapping(X11->display);

            if (map) {
                int i, maskIndex = 0, mapIndex = 0;
                for (maskIndex = 0; maskIndex < 8; maskIndex++) {
                    for (i = 0; i < map->max_keypermod; i++) {
                        if (map->modifiermap[mapIndex]) {
                            KeySym sym;
                            int x = 0;
                            do {
                                sym = XKeycodeToKeysym(X11->display, map->modifiermap[mapIndex], x++);
                            } while (sym == NoSymbol && x < coreDesc.keysyms_per_keycode);
                            const uchar mask = 1 << maskIndex;
                            SETMASK(sym, mask);
                        }
                        mapIndex++;
                    }
                }

                // determine the meaning of the Lock modifier
                for (i = 0; i < map->max_keypermod; ++i) {
                    for (int x = 0; x < coreDesc.keysyms_per_keycode; ++x) {
                        KeySym sym = XKeycodeToKeysym(X11->display, map->modifiermap[LockMapIndex], x);
                        if (sym == XK_Caps_Lock || sym == XK_ISO_Lock) {
                            coreDesc.lock_meaning = XK_Caps_Lock;
                            break;
                        } else if (sym == XK_Shift_Lock) {
                            coreDesc.lock_meaning = XK_Shift_Lock;
                        }
                    }
                }

                XFreeModifiermap(map);
            }

            // for qt_XTranslateKey()
            coreDesc.num_lock = qt_num_lock_mask;
            coreDesc.mode_switch = qt_mode_switch_mask;

#if 0
            qDebug() << "lock_meaning =" << coreDesc.lock_meaning;
            qDebug() << "num_lock =" << coreDesc.num_lock;
            qDebug() << "mode_switch =" << coreDesc.mode_switch;
#endif
        }

    // if we don't have a meta key (or it's hidden behind alt), use super or hyper to generate
    // Qt::Key_Meta and Qt::MetaModifier, since most newer XFree86/Xorg installations map the Windows
    // key to Super
    if (qt_meta_mask == 0 || qt_meta_mask == qt_alt_mask) {
        // no meta keys... s,meta,super,
        qt_meta_mask = qt_super_mask;
        if (qt_meta_mask == 0 || qt_meta_mask == qt_alt_mask) {
            // no super keys either? guess we'll use hyper then
            qt_meta_mask = qt_hyper_mask;
        }
    }

#if 0
    qDebug() << "qt_alt_mask =" << hex << qt_alt_mask;
    qDebug() << "qt_meta_mask =" << hex << qt_meta_mask;
    qDebug() << "qt_super_mask =" << hex << qt_super_mask;
    qDebug() << "qt_hyper_mask =" << hex << qt_hyper_mask;
    qDebug() << "qt_mode_switch_mask =" << hex << qt_mode_switch_mask;
    qDebug() << "qt_num_lock_mask =" << hex << qt_num_lock_mask;
#endif
}

extern bool qt_sm_blockUserInput;

//
// Keyboard event translation
//

#ifndef XK_ISO_Left_Tab
#define XK_ISO_Left_Tab         0xFE20
#endif

#ifndef XK_dead_hook
#define XK_dead_hook            0xFE61
#endif

#ifndef XK_dead_horn
#define XK_dead_horn            0xFE62
#endif

#ifndef XK_Codeinput
#define XK_Codeinput            0xFF37
#endif

#ifndef XK_Kanji_Bangou
#define XK_Kanji_Bangou         0xFF37 /* same as codeinput */
#endif

// Fix old X libraries
#ifndef XK_KP_Home
#define XK_KP_Home              0xFF95
#endif
#ifndef XK_KP_Left
#define XK_KP_Left              0xFF96
#endif
#ifndef XK_KP_Up
#define XK_KP_Up                0xFF97
#endif
#ifndef XK_KP_Right
#define XK_KP_Right             0xFF98
#endif
#ifndef XK_KP_Down
#define XK_KP_Down              0xFF99
#endif
#ifndef XK_KP_Prior
#define XK_KP_Prior             0xFF9A
#endif
#ifndef XK_KP_Next
#define XK_KP_Next              0xFF9B
#endif
#ifndef XK_KP_End
#define XK_KP_End               0xFF9C
#endif
#ifndef XK_KP_Insert
#define XK_KP_Insert            0xFF9E
#endif
#ifndef XK_KP_Delete
#define XK_KP_Delete            0xFF9F
#endif

// the next lines are taken from XFree > 4.0 (X11/XF86keysyms.h), defining some special
// multimedia keys. They are included here as not every system has them.
#define XF86XK_Standby          0x1008FF10
#define XF86XK_AudioLowerVolume 0x1008FF11
#define XF86XK_AudioMute        0x1008FF12
#define XF86XK_AudioRaiseVolume 0x1008FF13
#define XF86XK_AudioPlay        0x1008FF14
#define XF86XK_AudioStop        0x1008FF15
#define XF86XK_AudioPrev        0x1008FF16
#define XF86XK_AudioNext        0x1008FF17
#define XF86XK_HomePage         0x1008FF18
#define XF86XK_Calculator       0x1008FF1D
#define XF86XK_Mail             0x1008FF19
#define XF86XK_Start            0x1008FF1A
#define XF86XK_Search           0x1008FF1B
#define XF86XK_AudioRecord      0x1008FF1C
#define XF86XK_Back             0x1008FF26
#define XF86XK_Forward          0x1008FF27
#define XF86XK_Stop             0x1008FF28
#define XF86XK_Refresh          0x1008FF29
#define XF86XK_Favorites        0x1008FF30
#define XF86XK_AudioPause       0x1008FF31
#define XF86XK_AudioMedia       0x1008FF32
#define XF86XK_MyComputer       0x1008FF33
#define XF86XK_OpenURL          0x1008FF38
#define XF86XK_Launch0          0x1008FF40
#define XF86XK_Launch1          0x1008FF41
#define XF86XK_Launch2          0x1008FF42
#define XF86XK_Launch3          0x1008FF43
#define XF86XK_Launch4          0x1008FF44
#define XF86XK_Launch5          0x1008FF45
#define XF86XK_Launch6          0x1008FF46
#define XF86XK_Launch7          0x1008FF47
#define XF86XK_Launch8          0x1008FF48
#define XF86XK_Launch9          0x1008FF49
#define XF86XK_LaunchA          0x1008FF4A
#define XF86XK_LaunchB          0x1008FF4B
#define XF86XK_LaunchC          0x1008FF4C
#define XF86XK_LaunchD          0x1008FF4D
#define XF86XK_LaunchE          0x1008FF4E
#define XF86XK_LaunchF          0x1008FF4F
// end of XF86keysyms.h



// keyboard mapping table
static const unsigned int KeyTbl[] = {

    // misc keys

    XK_Escape,                  Qt::Key_Escape,
    XK_Tab,                     Qt::Key_Tab,
    XK_ISO_Left_Tab,            Qt::Key_Backtab,
    XK_BackSpace,               Qt::Key_Backspace,
    XK_Return,                  Qt::Key_Return,
    XK_Insert,                  Qt::Key_Insert,
    XK_Delete,                  Qt::Key_Delete,
    XK_Clear,                   Qt::Key_Delete,
    XK_Pause,                   Qt::Key_Pause,
    XK_Print,                   Qt::Key_Print,
    0x1005FF60,                 Qt::Key_SysReq,         // hardcoded Sun SysReq
    0x1007ff00,                 Qt::Key_SysReq,         // hardcoded X386 SysReq

    // cursor movement

    XK_Home,                    Qt::Key_Home,
    XK_End,                     Qt::Key_End,
    XK_Left,                    Qt::Key_Left,
    XK_Up,                      Qt::Key_Up,
    XK_Right,                   Qt::Key_Right,
    XK_Down,                    Qt::Key_Down,
    XK_Prior,                   Qt::Key_PageUp,
    XK_Next,                    Qt::Key_PageDown,

    // modifiers

    XK_Shift_L,                 Qt::Key_Shift,
    XK_Shift_R,                 Qt::Key_Shift,
    XK_Shift_Lock,              Qt::Key_Shift,
    XK_Control_L,               Qt::Key_Control,
    XK_Control_R,               Qt::Key_Control,
    XK_Meta_L,                  Qt::Key_Meta,
    XK_Meta_R,                  Qt::Key_Meta,
    XK_Alt_L,                   Qt::Key_Alt,
    XK_Alt_R,                   Qt::Key_Alt,
    XK_Caps_Lock,               Qt::Key_CapsLock,
    XK_Num_Lock,                Qt::Key_NumLock,
    XK_Scroll_Lock,             Qt::Key_ScrollLock,
    XK_Super_L,                 Qt::Key_Super_L,
    XK_Super_R,                 Qt::Key_Super_R,
    XK_Menu,                    Qt::Key_Menu,
    XK_Hyper_L,                 Qt::Key_Hyper_L,
    XK_Hyper_R,                 Qt::Key_Hyper_R,
    XK_Help,                    Qt::Key_Help,
    0x1000FF74,                 Qt::Key_Backtab,        // hardcoded HP backtab
    0x1005FF10,                 Qt::Key_F11,            // hardcoded Sun F36 (labeled F11)
    0x1005FF11,                 Qt::Key_F12,            // hardcoded Sun F37 (labeled F12)

    // numeric and function keypad keys

    XK_KP_Space,                Qt::Key_Space,
    XK_KP_Tab,                  Qt::Key_Tab,
    XK_KP_Enter,                Qt::Key_Enter,
    //XK_KP_F1,                 Qt::Key_F1,
    //XK_KP_F2,                 Qt::Key_F2,
    //XK_KP_F3,                 Qt::Key_F3,
    //XK_KP_F4,                 Qt::Key_F4,
    XK_KP_Home,                 Qt::Key_Home,
    XK_KP_Left,                 Qt::Key_Left,