C++ (Cpp) trace_keymap_unmapped Examples

Example #1

File: keymaps.c Project: CTU-IIG/qemu

int keysym2scancode(kbd_layout_t *k, int keysym,
                    bool shift, bool altgr, bool ctrl)
{
    static const uint32_t mask =
        SCANCODE_SHIFT | SCANCODE_ALTGR | SCANCODE_CTRL;
    uint32_t mods, i;
    struct keysym2code *keysym2code;

#ifdef XK_ISO_Left_Tab
    if (keysym == XK_ISO_Left_Tab) {
        keysym = XK_Tab;
    }
#endif

    keysym2code = g_hash_table_lookup(k->hash, GINT_TO_POINTER(keysym));
    if (!keysym2code) {
        trace_keymap_unmapped(keysym);
        warn_report("no scancode found for keysym %d", keysym);
        return 0;
    }

    if (keysym2code->count == 1) {
        return keysym2code->keycodes[0];
    }

    /*
     * We have multiple keysym -> keycode mappings.
     *
     * Check whenever we find one mapping where the modifier state of
     * the mapping matches the current user interface modifier state.
     * If so, prefer that one.
     */
    mods = 0;
    if (shift) {
        mods |= SCANCODE_SHIFT;
    }
    if (altgr) {
        mods |= SCANCODE_ALTGR;
    }
    if (ctrl) {
        mods |= SCANCODE_CTRL;
    }

    for (i = 0; i < keysym2code->count; i++) {
        if ((keysym2code->keycodes[i] & mask) == mods) {
            return keysym2code->keycodes[i];
        }
    }
    return keysym2code->keycodes[0];
}

Example #2

File: keymaps.c Project: MaddTheSane/qemu

int keysym2scancode(kbd_layout_t *k, int keysym,
                    QKbdState *kbd, bool down)
{
    static const uint32_t mask =
        SCANCODE_SHIFT | SCANCODE_ALTGR | SCANCODE_CTRL;
    uint32_t mods, i;
    struct keysym2code *keysym2code;

#ifdef XK_ISO_Left_Tab
    if (keysym == XK_ISO_Left_Tab) {
        keysym = XK_Tab;
    }
#endif

    keysym2code = g_hash_table_lookup(k->hash, GINT_TO_POINTER(keysym));
    if (!keysym2code) {
        trace_keymap_unmapped(keysym);
        warn_report("no scancode found for keysym %d", keysym);
        return 0;
    }

    if (keysym2code->count == 1) {
        return keysym2code->keycodes[0];
    }

    /* We have multiple keysym -> keycode mappings. */
    if (down) {
        /*
         * On keydown: Check whenever we find one mapping where the
         * modifier state of the mapping matches the current user
         * interface modifier state.  If so, prefer that one.
         */
        mods = 0;
        if (kbd && qkbd_state_modifier_get(kbd, QKBD_MOD_SHIFT)) {
            mods |= SCANCODE_SHIFT;
        }
        if (kbd && qkbd_state_modifier_get(kbd, QKBD_MOD_ALTGR)) {
            mods |= SCANCODE_ALTGR;
        }
        if (kbd && qkbd_state_modifier_get(kbd, QKBD_MOD_CTRL)) {
            mods |= SCANCODE_CTRL;
        }

        for (i = 0; i < keysym2code->count; i++) {
            if ((keysym2code->keycodes[i] & mask) == mods) {
                return keysym2code->keycodes[i];
            }
        }
    } else {
        /*
         * On keyup: Try find a key which is actually down.
         */
        for (i = 0; i < keysym2code->count; i++) {
            QKeyCode qcode = qemu_input_key_number_to_qcode
                (keysym2code->keycodes[i]);
            if (kbd && qkbd_state_key_get(kbd, qcode)) {
                return keysym2code->keycodes[i];
            }
        }
    }
    return keysym2code->keycodes[0];
}