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SDL_QuartzEvents.m
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/*
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SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
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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.
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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.
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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
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Sam Lantinga
slouken@devolution.com
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*/
#include "SDL_QuartzKeys.h"
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static SDLKey keymap[256];
static unsigned int currentMods = 0; /* Current keyboard modifiers, to track modifier state */
static int last_virtual_button = 0; /* Last virtual mouse button pressed */
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static void QZ_InitOSKeymap (_THIS) {
const void *KCHRPtr;
UInt32 state;
UInt32 value;
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int i;
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int world = SDLK_WORLD_0;
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for ( i=0; i<SDL_TABLESIZE(keymap); ++i )
keymap[i] = SDLK_UNKNOWN;
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/* This keymap is almost exactly the same as the OS 9 one */
keymap[QZ_ESCAPE] = SDLK_ESCAPE;
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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_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_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_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;
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keymap[QZ_IBOOK_UP] = SDLK_UP;
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keymap[QZ_IBOOK_LEFT] = SDLK_LEFT;
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/* 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
* bascially 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;
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}
static void QZ_DoKey (int state, NSEvent *event) {
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NSString *chars;
int i;
SDL_keysym key;
/* An event can contain multiple characters */
/* I'll ignore this fact for now, since there is only one virtual key code per event */
chars = [ event characters ];
for (i =0; i < 1 /*[ chars length ] */; i++) {
key.scancode = [ event keyCode ];
key.sym = keymap [ key.scancode ];
key.unicode = [ chars characterAtIndex:i];
key.mod = KMOD_NONE;
SDL_PrivateKeyboard (state, &key);
}
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}
static void QZ_DoModifiers (unsigned int newMods) {
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const int mapping[] = { SDLK_CAPSLOCK, SDLK_LSHIFT, SDLK_LCTRL, SDLK_LALT, SDLK_LMETA } ;
int i;
int bit;
SDL_keysym key;
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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) {
unsigned int currentMask, newMask;
currentMask = currentMods & bit;
newMask = newMods & bit;
if ( currentMask &&
currentMask != newMask ) { /* modifier up event */
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key.sym = mapping[i];
/* If this was Caps Lock, we need some additional voodoo to make SDL happy */
if (bit == NSAlphaShiftKeyMask)
SDL_PrivateKeyboard (SDL_PRESSED, &key);
SDL_PrivateKeyboard (SDL_RELEASED, &key);
}
else
if ( newMask &&
currentMask != newMask ) { /* modifier down event */
key.sym = mapping[i];
SDL_PrivateKeyboard (SDL_PRESSED, &key);
/* If this was Caps Lock, we need some additional voodoo to make SDL happy */
if (bit == NSAlphaShiftKeyMask)
SDL_PrivateKeyboard (SDL_RELEASED, &key);
}
}
currentMods = newMods;
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}
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static void QZ_DoActivate (_THIS)
{
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inForeground = YES;
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/* Regrab the mouse */
if (currentGrabMode == SDL_GRAB_ON) {
QZ_WarpWMCursor (this, SDL_VideoSurface->w / 2, SDL_VideoSurface->h / 2);
CGAssociateMouseAndMouseCursorPosition (0);
}
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/* Hide the mouse cursor if inside the app window */
if (!QZ_cursor_visible) {
HideCursor ();
}
SDL_PrivateAppActive (1, SDL_APPINPUTFOCUS);
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}
static void QZ_DoDeactivate (_THIS) {
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inForeground = NO;
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/* Ungrab mouse if it is grabbed */
if (currentGrabMode == SDL_GRAB_ON) {
CGAssociateMouseAndMouseCursorPosition (1);
}
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/* Show the mouse cursor */
if (!QZ_cursor_visible) {
ShowCursor ();
}
SDL_PrivateAppActive (0, SDL_APPINPUTFOCUS);
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}
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static void QZ_PumpEvents (_THIS)
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{
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NSDate *distantPast;
NSEvent *event;
NSRect winRect;
NSRect titleBarRect;
NSAutoreleasePool *pool;
pool = [ [ NSAutoreleasePool alloc ] init ];
distantPast = [ NSDate distantPast ];
winRect = NSMakeRect (0, 0, SDL_VideoSurface->w + 1, SDL_VideoSurface->h + 1);
titleBarRect = NSMakeRect ( 0, SDL_VideoSurface->h, SDL_VideoSurface->w,
SDL_VideoSurface->h + 22 );
do {
/* Poll for an event. This will not block */
event = [ NSApp nextEventMatchingMask:NSAnyEventMask
untilDate:distantPast
inMode: NSDefaultRunLoopMode dequeue:YES ];
if (event != nil) {
unsigned int type;
BOOL isForGameWin;
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#define DO_MOUSE_DOWN(button, sendToWindow) do { \
if ( inForeground ) { \
if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) || \
NSPointInRect([event locationInWindow], winRect) ) \
SDL_PrivateMouseButton (SDL_PRESSED, button, 0, 0); \
} \
else { \
QZ_DoActivate (this); \
} \
[ NSApp sendEvent:event ]; \
} while(0)
#define DO_MOUSE_UP(button, sendToWindow) do { \
if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN) || \
!NSPointInRect([event locationInWindow], titleBarRect) )\
SDL_PrivateMouseButton (SDL_RELEASED, button, 0, 0); \
[ NSApp sendEvent:event ]; \
} while(0)
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type = [ event type ];
isForGameWin = (qz_window == [ event window ]);
switch (type) {
case NSLeftMouseDown:
if ( NSCommandKeyMask & currentMods ) {
last_virtual_button = 3;
DO_MOUSE_DOWN (3, 0);
}
else if ( NSAlternateKeyMask & currentMods ) {
last_virtual_button = 2;
DO_MOUSE_DOWN (2, 0);
}
else {
DO_MOUSE_DOWN (1, 1);
}
break;
case 25: DO_MOUSE_DOWN (2, 0); break;
case NSRightMouseDown: DO_MOUSE_DOWN (3, 0); break;
case NSLeftMouseUp:
if ( last_virtual_button != 0 ) {
DO_MOUSE_UP (last_virtual_button, 0);
last_virtual_button = 0;
}
else {
DO_MOUSE_UP (1, 1);
}
break;
case 26: DO_MOUSE_UP (2, 0); break;
case NSRightMouseUp: DO_MOUSE_UP (3, 0); break;
case NSSystemDefined:
//if ([event subtype] == 7) {
// unsigned int buttons; // up to 32 mouse button states!
// buttons = [ event data2 ];
//}
break;
case NSLeftMouseDragged:
case NSRightMouseDragged:
case 27:
case NSMouseMoved:
if ( (SDL_VideoSurface->flags & SDL_FULLSCREEN)
|| NSPointInRect([event locationInWindow], winRect) )
{
static int moves = 0;
NSPoint p;
if ( SDL_VideoSurface->flags & SDL_FULLSCREEN ) {
p = [ NSEvent mouseLocation ];
p.y = [[NSScreen mainScreen] frame].size.height - p.y;
} else {
p = [ event locationInWindow ];
p.y = SDL_VideoSurface->h - p.y;
}
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if ( (moves % 10) == 0 ) {
SDL_PrivateMouseMotion (0, 0, p.x, p.y);
}
else {
CGMouseDelta dx, dy;
CGGetLastMouseDelta (&dx, &dy);
SDL_PrivateMouseMotion (0, 1, dx, dy);
}
moves++;
}
break;
case NSScrollWheel:
{
if (NSPointInRect([ event locationInWindow ], winRect)) {
float dy;
dy = [ event deltaY ];
if ( dy > 0.0 ) /* Scroll up */
SDL_PrivateMouseButton (SDL_PRESSED, 4, 0, 0);
else /* Scroll down */
SDL_PrivateMouseButton (SDL_PRESSED, 5, 0, 0);
}
}
break;
case NSKeyUp:
QZ_DoKey (SDL_RELEASED, event);
break;
case NSKeyDown:
QZ_DoKey (SDL_PRESSED, event);
break;
case NSFlagsChanged:
QZ_DoModifiers( [ event modifierFlags ] );
break;
/* case NSMouseEntered: break; */
/* case NSMouseExited: break; */
case NSAppKitDefined:
switch ( [ event subtype ] ) {
case NSApplicationActivatedEventType:
QZ_DoActivate (this);
break;
case NSApplicationDeactivatedEventType:
QZ_DoDeactivate (this);
break;
}
[ NSApp sendEvent:event ];
break;
/* case NSApplicationDefined: break; */
/* case NSPeriodic: break; */
/* case NSCursorUpdate: break; */
default:
[ NSApp sendEvent:event ];
}
}
} while (event != nil);
[ pool release ];
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}