sdl_quartzevents.m

SDL库 在进行视频显示程序spcaview安装时必须的库文件

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2003  Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga
    [e-mail]
*/
#include "SDL_config.h"

#include "SDL_QuartzVideo.h"
#include "SDL_QuartzWM.h"

#include <IOKit/IOMessage.h> /* For wake from sleep detection */
#include <IOKit/pwr_mgt/IOPMLib.h> /* For wake from sleep detection */
#include "SDL_QuartzKeys.h"

/* 
 * In Panther, this header defines device dependent masks for 
 * right side keys. These definitions only exist in Panther, but
 * the header seems to exist at least in Jaguar and probably earlier
 * versions of the OS, so this should't break anything.
 */
#include <IOKit/hidsystem/IOLLEvent.h>
/* 
 * These are not defined before Panther. To keep the code compiling
 * on systems without these, I will define if they don't exist.
 */
#ifndef NX_DEVICERCTLKEYMASK
    #define NX_DEVICELCTLKEYMASK    0x00000001
#endif
#ifndef NX_DEVICELSHIFTKEYMASK
    #define NX_DEVICELSHIFTKEYMASK  0x00000002
#endif
#ifndef NX_DEVICERSHIFTKEYMASK
    #define NX_DEVICERSHIFTKEYMASK  0x00000004
#endif
#ifndef NX_DEVICELCMDKEYMASK
    #define NX_DEVICELCMDKEYMASK    0x00000008
#endif
#ifndef NX_DEVICERCMDKEYMASK
    #define NX_DEVICERCMDKEYMASK    0x00000010
#endif
#ifndef NX_DEVICELALTKEYMASK
    #define NX_DEVICELALTKEYMASK    0x00000020
#endif
#ifndef NX_DEVICERALTKEYMASK
    #define NX_DEVICERALTKEYMASK    0x00000040
#endif
#ifndef NX_DEVICERCTLKEYMASK
    #define NX_DEVICERCTLKEYMASK    0x00002000
#endif

void     QZ_InitOSKeymap (_THIS) {
    const void *KCHRPtr;
    UInt32 state;
    UInt32 value;
    int i;
    int world = SDLK_WORLD_0;

    for ( i=0; i<SDL_TABLESIZE(keymap); ++i )
        keymap[i] = SDLK_UNKNOWN;

    /* This keymap is almost exactly the same as the OS 9 one */
    keymap[QZ_ESCAPE] = SDLK_ESCAPE;
    keymap[QZ_F1] = SDLK_F1;
    keymap[QZ_F2] = SDLK_F2;
    keymap[QZ_F3] = SDLK_F3;
    keymap[QZ_F4] = SDLK_F4;
    keymap[QZ_F5] = SDLK_F5;
    keymap[QZ_F6] = SDLK_F6;
    keymap[QZ_F7] = SDLK_F7;
    keymap[QZ_F8] = SDLK_F8;
    keymap[QZ_F9] = SDLK_F9;
    keymap[QZ_F10] = SDLK_F10;
    keymap[QZ_F11] = SDLK_F11;
    keymap[QZ_F12] = SDLK_F12;
    keymap[QZ_F13] = SDLK_F13;
    keymap[QZ_F14] = SDLK_F14;
    keymap[QZ_F15] = SDLK_F15;
/*
    keymap[QZ_PRINT] = SDLK_PRINT;
    keymap[QZ_SCROLLOCK] = SDLK_SCROLLOCK;
    keymap[QZ_PAUSE] = SDLK_PAUSE;
*/
    keymap[QZ_POWER] = SDLK_POWER;
    keymap[QZ_BACKQUOTE] = SDLK_BACKQUOTE;
    keymap[QZ_1] = SDLK_1;
    keymap[QZ_2] = SDLK_2;
    keymap[QZ_3] = SDLK_3;
    keymap[QZ_4] = SDLK_4;
    keymap[QZ_5] = SDLK_5;
    keymap[QZ_6] = SDLK_6;
    keymap[QZ_7] = SDLK_7;
    keymap[QZ_8] = SDLK_8;
    keymap[QZ_9] = SDLK_9;
    keymap[QZ_0] = SDLK_0;
    keymap[QZ_MINUS] = SDLK_MINUS;
    keymap[QZ_EQUALS] = SDLK_EQUALS;
    keymap[QZ_BACKSPACE] = SDLK_BACKSPACE;
    keymap[QZ_INSERT] = SDLK_INSERT;
    keymap[QZ_HOME] = SDLK_HOME;
    keymap[QZ_PAGEUP] = SDLK_PAGEUP;
    keymap[QZ_NUMLOCK] = SDLK_NUMLOCK;
    keymap[QZ_KP_EQUALS] = SDLK_KP_EQUALS;
    keymap[QZ_KP_DIVIDE] = SDLK_KP_DIVIDE;
    keymap[QZ_KP_MULTIPLY] = SDLK_KP_MULTIPLY;
    keymap[QZ_TAB] = SDLK_TAB;
    keymap[QZ_q] = SDLK_q;
    keymap[QZ_w] = SDLK_w;
    keymap[QZ_e] = SDLK_e;
    keymap[QZ_r] = SDLK_r;
    keymap[QZ_t] = SDLK_t;
    keymap[QZ_y] = SDLK_y;
    keymap[QZ_u] = SDLK_u;
    keymap[QZ_i] = SDLK_i;
    keymap[QZ_o] = SDLK_o;
    keymap[QZ_p] = SDLK_p;
    keymap[QZ_LEFTBRACKET] = SDLK_LEFTBRACKET;
    keymap[QZ_RIGHTBRACKET] = SDLK_RIGHTBRACKET;
    keymap[QZ_BACKSLASH] = SDLK_BACKSLASH;
    keymap[QZ_DELETE] = SDLK_DELETE;
    keymap[QZ_END] = SDLK_END;
    keymap[QZ_PAGEDOWN] = SDLK_PAGEDOWN;
    keymap[QZ_KP7] = SDLK_KP7;
    keymap[QZ_KP8] = SDLK_KP8;
    keymap[QZ_KP9] = SDLK_KP9;
    keymap[QZ_KP_MINUS] = SDLK_KP_MINUS;
    keymap[QZ_CAPSLOCK] = SDLK_CAPSLOCK;
    keymap[QZ_a] = SDLK_a;
    keymap[QZ_s] = SDLK_s;
    keymap[QZ_d] = SDLK_d;
    keymap[QZ_f] = SDLK_f;
    keymap[QZ_g] = SDLK_g;
    keymap[QZ_h] = SDLK_h;
    keymap[QZ_j] = SDLK_j;
    keymap[QZ_k] = SDLK_k;
    keymap[QZ_l] = SDLK_l;
    keymap[QZ_SEMICOLON] = SDLK_SEMICOLON;
    keymap[QZ_QUOTE] = SDLK_QUOTE;
    keymap[QZ_RETURN] = SDLK_RETURN;
    keymap[QZ_KP4] = SDLK_KP4;
    keymap[QZ_KP5] = SDLK_KP5;
    keymap[QZ_KP6] = SDLK_KP6;
    keymap[QZ_KP_PLUS] = SDLK_KP_PLUS;
    keymap[QZ_LSHIFT] = SDLK_LSHIFT;
    keymap[QZ_RSHIFT] = SDLK_RSHIFT;
    keymap[QZ_z] = SDLK_z;
    keymap[QZ_x] = SDLK_x;
    keymap[QZ_c] = SDLK_c;
    keymap[QZ_v] = SDLK_v;
    keymap[QZ_b] = SDLK_b;
    keymap[QZ_n] = SDLK_n;
    keymap[QZ_m] = SDLK_m;
    keymap[QZ_COMMA] = SDLK_COMMA;
    keymap[QZ_PERIOD] = SDLK_PERIOD;
    keymap[QZ_SLASH] = SDLK_SLASH;
    keymap[QZ_UP] = SDLK_UP;
    keymap[QZ_KP1] = SDLK_KP1;
    keymap[QZ_KP2] = SDLK_KP2;
    keymap[QZ_KP3] = SDLK_KP3;
    keymap[QZ_KP_ENTER] = SDLK_KP_ENTER;
    keymap[QZ_LCTRL] = SDLK_LCTRL;
    keymap[QZ_LALT] = SDLK_LALT;
    keymap[QZ_LMETA] = SDLK_LMETA;
    keymap[QZ_RCTRL] = SDLK_RCTRL;
    keymap[QZ_RALT] = SDLK_RALT;
    keymap[QZ_RMETA] = SDLK_RMETA;
    keymap[QZ_SPACE] = SDLK_SPACE;
    keymap[QZ_LEFT] = SDLK_LEFT;
    keymap[QZ_DOWN] = SDLK_DOWN;
    keymap[QZ_RIGHT] = SDLK_RIGHT;
    keymap[QZ_KP0] = SDLK_KP0;
    keymap[QZ_KP_PERIOD] = SDLK_KP_PERIOD;
    keymap[QZ_IBOOK_ENTER] = SDLK_KP_ENTER;
    keymap[QZ_IBOOK_RIGHT] = SDLK_RIGHT;
    keymap[QZ_IBOOK_DOWN] = SDLK_DOWN;
    keymap[QZ_IBOOK_UP]      = SDLK_UP;
    keymap[QZ_IBOOK_LEFT] = SDLK_LEFT;

    /* 
        Up there we setup a static scancode->keysym map. However, it will not
        work very well on international keyboard. Hence we now query MacOS
        for its own keymap to adjust our own mapping table. However, this is
        basically only useful for ascii char keys. This is also the reason
        why we keep the static table, too.
     */

    /* Get a pointer to the systems cached KCHR */
    KCHRPtr = (void *)GetScriptManagerVariable(smKCHRCache);
    if (KCHRPtr)
    {
        /* Loop over all 127 possible scan codes */
        for (i = 0; i < 0x7F; i++)
        {
            /* We pretend a clean start to begin with (i.e. no dead keys active */
            state = 0;

            /* Now translate the key code to a key value */
            value = KeyTranslate(KCHRPtr, i, &state) & 0xff;

            /* If the state become 0, it was a dead key. We need to translate again,
                passing in the new state, to get the actual key value */
            if (state != 0)
                value = KeyTranslate(KCHRPtr, i, &state) & 0xff;

            /* Now we should have an ascii value, or 0. Try to figure out to which SDL symbol it maps */
            if (value >= 128)     /* Some non-ASCII char, map it to SDLK_WORLD_* */
                keymap[i] = world++;
            else if (value >= 32)     /* non-control ASCII char */
                keymap[i] = value;
        }
    }

    /* 
        The keypad codes are re-setup here, because the loop above cannot
        distinguish between a key on the keypad and a regular key. We maybe
        could get around this problem in another fashion: NSEvent's flags
        include a "NSNumericPadKeyMask" bit; we could check that and modify
        the symbol we return on the fly. However, this flag seems to exhibit
        some weird behaviour related to the num lock key
    */
    keymap[QZ_KP0] = SDLK_KP0;
    keymap[QZ_KP1] = SDLK_KP1;
    keymap[QZ_KP2] = SDLK_KP2;
    keymap[QZ_KP3] = SDLK_KP3;
    keymap[QZ_KP4] = SDLK_KP4;
    keymap[QZ_KP5] = SDLK_KP5;
    keymap[QZ_KP6] = SDLK_KP6;
    keymap[QZ_KP7] = SDLK_KP7;
    keymap[QZ_KP8] = SDLK_KP8;
    keymap[QZ_KP9] = SDLK_KP9;
    keymap[QZ_KP_MINUS] = SDLK_KP_MINUS;
    keymap[QZ_KP_PLUS] = SDLK_KP_PLUS;
    keymap[QZ_KP_PERIOD] = SDLK_KP_PERIOD;
    keymap[QZ_KP_EQUALS] = SDLK_KP_EQUALS;
    keymap[QZ_KP_DIVIDE] = SDLK_KP_DIVIDE;
    keymap[QZ_KP_MULTIPLY] = SDLK_KP_MULTIPLY;
    keymap[QZ_KP_ENTER] = SDLK_KP_ENTER;
}

static void QZ_DoKey (_THIS, int state, NSEvent *event) {

    NSString *chars = NULL;
    unsigned int i, numChars;
    SDL_keysym key;
    
    /* 
        A key event can contain multiple characters,
        or no characters at all. In most cases, it
        will contain a single character. If it contains
        0 characters, we'll use 0 as the unicode. If it
        contains multiple characters, we'll use 0 as
        the scancode/keysym.
    */
    if (SDL_TranslateUNICODE && state == SDL_PRESSED) {
        [field_edit interpretKeyEvents:[NSArray arrayWithObject:event]];
        chars = [ event characters ];
        numChars = [ chars length ];
        if (numChars > 0)
            [field_edit setString:@""];
    } else {
        numChars = 0;
    }

    if (numChars == 0) {
      
        key.scancode = [ event keyCode ];
        key.sym      = keymap [ key.scancode ];
        key.unicode  = 0;
        key.mod      = KMOD_NONE;

        SDL_PrivateKeyboard (state, &key);
    }
    else if (numChars >= 1) {

        key.scancode = [ event keyCode ];
        key.sym      = keymap [ key.scancode ];
        key.unicode  = [ chars characterAtIndex:0 ];
        key.mod      = KMOD_NONE;

        SDL_PrivateKeyboard (state, &key);
      
        for (i = 1; i < numChars; i++) {

            key.scancode = 0;
            key.sym      = 0;
            key.unicode  = [ chars characterAtIndex:i];
            key.mod      = KMOD_NONE;

            SDL_PrivateKeyboard (state, &key);
        }
    }
    
    if (SDL_getenv ("SDL_ENABLEAPPEVENTS"))
        [ NSApp sendEvent:event ];
}

/* This is the original behavior, before support was added for 
 * differentiating between left and right versions of the keys.
 */
static void QZ_DoUnsidedModifiers (_THIS, unsigned int newMods) {

    const int mapping[] = { SDLK_CAPSLOCK, SDLK_LSHIFT, SDLK_LCTRL, SDLK_LALT, SDLK_LMETA };

    int i;
    int bit;
    SDL_keysym key;
    
    key.scancode    = 0;
    key.sym         = SDLK_UNKNOWN;
    key.unicode     = 0;
    key.mod         = KMOD_NONE;

    /* Iterate through the bits, testing each against the current modifiers */
    for (i = 0, bit = NSAlphaShiftKeyMask; bit <= NSCommandKeyMask; bit <<= 1, ++i) {