[u-boot.git] / board / MAI / bios_emulator / scitech / src / pm / rttarget / event.c

/****************************************************************************
*
*                   SciTech Multi-platform Graphics Library
*
*  ========================================================================
*
*    The contents of this file are subject to the SciTech MGL Public
*    License Version 1.0 (the "License"); you may not use this file
*    except in compliance with the License. You may obtain a copy of
*    the License at http://www.scitechsoft.com/mgl-license.txt
*
*    Software distributed under the License is distributed on an
*    "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
*    implied. See the License for the specific language governing
*    rights and limitations under the License.
*
*    The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
*
*    The Initial Developer of the Original Code is SciTech Software, Inc.
*    All Rights Reserved.
*
*  ========================================================================
*
* Language:     ANSI C
* Environment:  RTTarget-32
*
* Description:  Win32 implementation for the SciTech cross platform
*               event library.
*
****************************************************************************/

/*---------------------------- Global Variables ---------------------------*/

static ushort   keyUpMsg[256] = {0};    /* Table of key up messages     */
static int      rangeX,rangeY;          /* Range of mouse coordinates   */

/*---------------------------- Implementation -----------------------------*/

/* These are not used under Win32 */
#define _EVT_disableInt()       1
#define _EVT_restoreInt(flags)

/****************************************************************************
PARAMETERS:
scanCode    - Scan code to test

REMARKS:
This macro determines if a specified key is currently down at the
time that the call is made.
****************************************************************************/
#define _EVT_isKeyDown(scanCode)    (keyUpMsg[scanCode] != 0)

/****************************************************************************
REMARKS:
This function is used to return the number of ticks since system
startup in milliseconds. This should be the same value that is placed into
the time stamp fields of events, and is used to implement auto mouse down
events.
****************************************************************************/
ulong _EVT_getTicks(void)
{ return timeGetTime(); }

/****************************************************************************
REMARKS:
Pumps all messages in the message queue from Win32 into our event queue.
****************************************************************************/
void _EVT_pumpMessages(void)
{
    MSG     msg;
    MSG     charMsg;
    event_t evt;

    while (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) {
	memset(&evt,0,sizeof(evt));
	switch (msg.message) {
	    case WM_MOUSEMOVE:
		evt.what = EVT_MOUSEMOVE;
		break;
	    case WM_LBUTTONDBLCLK:
		evt.what = EVT_MOUSEDOWN;
		evt.message = EVT_LEFTBMASK | EVT_DBLCLICK;
		break;
	    case WM_LBUTTONDOWN:
		evt.what = EVT_MOUSEDOWN;
		evt.message = EVT_LEFTBMASK;
		break;
	    case WM_LBUTTONUP:
		evt.what = EVT_MOUSEUP;
		evt.message = EVT_LEFTBMASK;
		break;
	    case WM_RBUTTONDBLCLK:
		evt.what = EVT_MOUSEDOWN | EVT_DBLCLICK;
		evt.message = EVT_RIGHTBMASK;
		break;
	    case WM_RBUTTONDOWN:
		evt.what = EVT_MOUSEDOWN;
		evt.message = EVT_RIGHTBMASK;
		break;
	    case WM_RBUTTONUP:
		evt.what = EVT_MOUSEUP;
		evt.message = EVT_RIGHTBMASK;
		break;
	    case WM_KEYDOWN:
	    case WM_SYSKEYDOWN:
		if (HIWORD(msg.lParam) & KF_REPEAT) {
		    evt.what = EVT_KEYREPEAT;
		    }
		else {
		    evt.what = EVT_KEYDOWN;
		    }
		break;
	    case WM_KEYUP:
	    case WM_SYSKEYUP:
		evt.what = EVT_KEYUP;
		break;
	    }

	/* Convert mouse event modifier flags */
	if (evt.what & EVT_MOUSEEVT) {
	    evt.where_x = msg.pt.x;
	    evt.where_y = msg.pt.y;
	    if (evt.what == EVT_MOUSEMOVE) {
		if (oldMove != -1) {
		    evtq[oldMove].where_x = evt.where_x;/* Modify existing one  */
		    evtq[oldMove].where_y = evt.where_y;
		    evt.what = 0;
		    }
		else {
		    oldMove = freeHead; /* Save id of this move event   */
		    }
		}
	    else
		oldMove = -1;
	    if (msg.wParam & MK_LBUTTON)
		evt.modifiers |= EVT_LEFTBUT;
	    if (msg.wParam & MK_RBUTTON)
		evt.modifiers |= EVT_RIGHTBUT;
	    if (msg.wParam & MK_SHIFT)
		evt.modifiers |= EVT_SHIFTKEY;
	    if (msg.wParam & MK_CONTROL)
		evt.modifiers |= EVT_CTRLSTATE;
	    }

	/* Convert keyboard codes */
	TranslateMessage(&msg);
	if (evt.what & EVT_KEYEVT) {
	    int scanCode = (msg.lParam >> 16) & 0xFF;
	    if (evt.what == EVT_KEYUP) {
		/* Get message for keyup code from table of cached down values */
		evt.message = keyUpMsg[scanCode];
		keyUpMsg[scanCode] = 0;
		}
	    else {
		if (PeekMessage(&charMsg,NULL,WM_CHAR,WM_CHAR,PM_REMOVE))
		    evt.message = charMsg.wParam;
		if (PeekMessage(&charMsg,NULL,WM_SYSCHAR,WM_SYSCHAR,PM_REMOVE))
		    evt.message = charMsg.wParam;
		evt.message |= ((msg.lParam >> 8) & 0xFF00);
		keyUpMsg[scanCode] = (ushort)evt.message;
		}
	    if (evt.what == EVT_KEYREPEAT)
		evt.message |= (msg.lParam << 16);
	    if (HIWORD(msg.lParam) & KF_ALTDOWN)
		evt.modifiers |= EVT_ALTSTATE;
	    if (GetKeyState(VK_SHIFT) & 0x8000U)
		evt.modifiers |= EVT_SHIFTKEY;
	    if (GetKeyState(VK_CONTROL) & 0x8000U)
		evt.modifiers |= EVT_CTRLSTATE;
	    oldMove = -1;
	    }

	if (evt.what != 0) {
	    /* Add time stamp and add the event to the queue */
	    evt.when = msg.time;
	    if (count < EVENTQSIZE) {
		addEvent(&evt);
		}
	    }
	DispatchMessage(&msg);
	}
}

/****************************************************************************
REMARKS:
This macro/function is used to converts the scan codes reported by the
keyboard to our event libraries normalised format. We only have one scan
code for the 'A' key, and use shift modifiers to determine if it is a
Ctrl-F1, Alt-F1 etc. The raw scan codes from the keyboard work this way,
but the OS gives us 'cooked' scan codes, we have to translate them back
to the raw format.
****************************************************************************/
#define _EVT_maskKeyCode(evt)

/****************************************************************************
REMARKS:
Safely abort the event module upon catching a fatal error.
****************************************************************************/
void _EVT_abort()
{
    EVT_exit();
    PM_fatalError("Unhandled exception!");
}

/****************************************************************************
PARAMETERS:
mouseMove   - Callback function to call wheneve the mouse needs to be moved

REMARKS:
Initiliase the event handling module. Here we install our mouse handling ISR
to be called whenever any button's are pressed or released. We also build
the free list of events in the event queue.

We use handler number 2 of the mouse libraries interrupt handlers for our
event handling routines.
****************************************************************************/
void EVTAPI EVT_init(
    _EVT_mouseMoveHandler mouseMove)
{
    /* Initialise the event queue */
    _mouseMove = mouseMove;
    initEventQueue();
    memset(keyUpMsg,0,sizeof(keyUpMsg));

    /* Catch program termination signals so we can clean up properly */
    signal(SIGABRT, _EVT_abort);
    signal(SIGFPE, _EVT_abort);
    signal(SIGINT, _EVT_abort);
}

/****************************************************************************
REMARKS
Changes the range of coordinates returned by the mouse functions to the
specified range of values. This is used when changing between graphics
modes set the range of mouse coordinates for the new display mode.
****************************************************************************/
void EVTAPI EVT_setMouseRange(
    int xRes,
    int yRes)
{
    rangeX = xRes;
    rangeY = yRes;
}

/****************************************************************************
REMARKS
Modifes the mouse coordinates as necessary if scaling to OS coordinates,
and sets the OS mouse cursor position.
****************************************************************************/
void _EVT_setMousePos(
    int *x,
    int *y)
{
    SetCursorPos(*x,*y);
}

/****************************************************************************
REMARKS:
Initiailises the internal event handling modules. The EVT_suspend function
can be called to suspend event handling (such as when shelling out to DOS),
and this function can be used to resume it again later.
****************************************************************************/
void EVT_resume(void)
{
    /* Do nothing for Win32 */
}

/****************************************************************************
REMARKS
Suspends all of our event handling operations. This is also used to
de-install the event handling code.
****************************************************************************/
void EVT_suspend(void)
{
    /* Do nothing for Win32 */
}

/****************************************************************************
REMARKS
Exits the event module for program terminatation.
****************************************************************************/
void EVT_exit(void)
{
    /* Restore signal handlers */
    signal(SIGABRT, SIG_DFL);
    signal(SIGFPE, SIG_DFL);
    signal(SIGINT, SIG_DFL);
}
Commit	Line	Data
c7de829c WD	1	/****************************************************************************
	2	*
	3	* SciTech Multi-platform Graphics Library
	4	*
	5	* ========================================================================
	6	*
	7	* The contents of this file are subject to the SciTech MGL Public
	8	* License Version 1.0 (the "License"); you may not use this file
	9	* except in compliance with the License. You may obtain a copy of
	10	* the License at http://www.scitechsoft.com/mgl-license.txt
	11	*
	12	* Software distributed under the License is distributed on an
	13	* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
	14	* implied. See the License for the specific language governing
	15	* rights and limitations under the License.
	16	*
	17	* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
	18	*
	19	* The Initial Developer of the Original Code is SciTech Software, Inc.
	20	* All Rights Reserved.
	21	*
	22	* ========================================================================
	23	*
	24	* Language: ANSI C
	25	* Environment: RTTarget-32
	26	*
	27	* Description: Win32 implementation for the SciTech cross platform
	28	* event library.
	29	*
	30	****************************************************************************/
	31
	32	/---------------------------- Global Variables ---------------------------/
	33
	34	static ushort keyUpMsg[256] = {0}; /* Table of key up messages */
	35	static int rangeX,rangeY; /* Range of mouse coordinates */
	36
	37	/---------------------------- Implementation -----------------------------/
	38
	39	/* These are not used under Win32 */
	40	#define _EVT_disableInt() 1
	41	#define _EVT_restoreInt(flags)
	42
	43	/****************************************************************************
	44	PARAMETERS:
	45	scanCode - Scan code to test
	46
	47	REMARKS:
	48	This macro determines if a specified key is currently down at the
	49	time that the call is made.
	50	****************************************************************************/
	51	#define _EVT_isKeyDown(scanCode) (keyUpMsg[scanCode] != 0)
	52
	53	/****************************************************************************
	54	REMARKS:
	55	This function is used to return the number of ticks since system
	56	startup in milliseconds. This should be the same value that is placed into
	57	the time stamp fields of events, and is used to implement auto mouse down
	58	events.
	59	****************************************************************************/
	60	ulong _EVT_getTicks(void)
	61	{ return timeGetTime(); }
	62
	63	/****************************************************************************
	64	REMARKS:
65	Pumps all messages in the message queue from Win32 into our event queue.
66	****************************************************************************/
67	void _EVT_pumpMessages(void)
68	{
69	MSG msg;
70	MSG charMsg;
71	event_t evt;
72
73	while (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) {
8bde7f77 WD	74	memset(&evt,0,sizeof(evt));
	75	switch (msg.message) {
	76	case WM_MOUSEMOVE:
	77	evt.what = EVT_MOUSEMOVE;
	78	break;
	79	case WM_LBUTTONDBLCLK:
	80	evt.what = EVT_MOUSEDOWN;
	81	evt.message = EVT_LEFTBMASK \| EVT_DBLCLICK;
	82	break;
	83	case WM_LBUTTONDOWN:
	84	evt.what = EVT_MOUSEDOWN;
	85	evt.message = EVT_LEFTBMASK;
	86	break;
	87	case WM_LBUTTONUP:
	88	evt.what = EVT_MOUSEUP;
	89	evt.message = EVT_LEFTBMASK;
	90	break;
	91	case WM_RBUTTONDBLCLK:
	92	evt.what = EVT_MOUSEDOWN \| EVT_DBLCLICK;
	93	evt.message = EVT_RIGHTBMASK;
	94	break;
	95	case WM_RBUTTONDOWN:
	96	evt.what = EVT_MOUSEDOWN;
	97	evt.message = EVT_RIGHTBMASK;
	98	break;
	99	case WM_RBUTTONUP:
	100	evt.what = EVT_MOUSEUP;
	101	evt.message = EVT_RIGHTBMASK;
	102	break;
	103	case WM_KEYDOWN:
	104	case WM_SYSKEYDOWN:
	105	if (HIWORD(msg.lParam) & KF_REPEAT) {
	106	evt.what = EVT_KEYREPEAT;
	107	}
	108	else {
	109	evt.what = EVT_KEYDOWN;
	110	}
	111	break;
	112	case WM_KEYUP:
	113	case WM_SYSKEYUP:
	114	evt.what = EVT_KEYUP;
	115	break;
	116	}
c7de829c	117
8bde7f77 WD	118	/* Convert mouse event modifier flags */
	119	if (evt.what & EVT_MOUSEEVT) {
	120	evt.where_x = msg.pt.x;
	121	evt.where_y = msg.pt.y;
	122	if (evt.what == EVT_MOUSEMOVE) {
	123	if (oldMove != -1) {
	124	evtq[oldMove].where_x = evt.where_x;/* Modify existing one */
	125	evtq[oldMove].where_y = evt.where_y;
	126	evt.what = 0;
	127	}
	128	else {
	129	oldMove = freeHead; /* Save id of this move event */
	130	}
	131	}
	132	else
	133	oldMove = -1;
	134	if (msg.wParam & MK_LBUTTON)
	135	evt.modifiers \|= EVT_LEFTBUT;
	136	if (msg.wParam & MK_RBUTTON)
	137	evt.modifiers \|= EVT_RIGHTBUT;
	138	if (msg.wParam & MK_SHIFT)
	139	evt.modifiers \|= EVT_SHIFTKEY;
	140	if (msg.wParam & MK_CONTROL)
	141	evt.modifiers \|= EVT_CTRLSTATE;
	142	}
c7de829c	143
8bde7f77 WD	144	/* Convert keyboard codes */
	145	TranslateMessage(&msg);
	146	if (evt.what & EVT_KEYEVT) {
	147	int scanCode = (msg.lParam >> 16) & 0xFF;
	148	if (evt.what == EVT_KEYUP) {
	149	/* Get message for keyup code from table of cached down values */
	150	evt.message = keyUpMsg[scanCode];
	151	keyUpMsg[scanCode] = 0;
	152	}
	153	else {
	154	if (PeekMessage(&charMsg,NULL,WM_CHAR,WM_CHAR,PM_REMOVE))
	155	evt.message = charMsg.wParam;
	156	if (PeekMessage(&charMsg,NULL,WM_SYSCHAR,WM_SYSCHAR,PM_REMOVE))
	157	evt.message = charMsg.wParam;
	158	evt.message \|= ((msg.lParam >> 8) & 0xFF00);
	159	keyUpMsg[scanCode] = (ushort)evt.message;
	160	}
	161	if (evt.what == EVT_KEYREPEAT)
	162	evt.message \|= (msg.lParam << 16);
	163	if (HIWORD(msg.lParam) & KF_ALTDOWN)
	164	evt.modifiers \|= EVT_ALTSTATE;
	165	if (GetKeyState(VK_SHIFT) & 0x8000U)
	166	evt.modifiers \|= EVT_SHIFTKEY;
	167	if (GetKeyState(VK_CONTROL) & 0x8000U)
	168	evt.modifiers \|= EVT_CTRLSTATE;
	169	oldMove = -1;
	170	}
c7de829c	171
8bde7f77 WD	172	if (evt.what != 0) {
	173	/* Add time stamp and add the event to the queue */
	174	evt.when = msg.time;
	175	if (count < EVENTQSIZE) {
	176	addEvent(&evt);
	177	}
	178	}
	179	DispatchMessage(&msg);
	180	}
c7de829c WD	181	}
	182
	183	/****************************************************************************
	184	REMARKS:
	185	This macro/function is used to converts the scan codes reported by the
	186	keyboard to our event libraries normalised format. We only have one scan
	187	code for the 'A' key, and use shift modifiers to determine if it is a
	188	Ctrl-F1, Alt-F1 etc. The raw scan codes from the keyboard work this way,
	189	but the OS gives us 'cooked' scan codes, we have to translate them back
	190	to the raw format.
	191	****************************************************************************/
	192	#define _EVT_maskKeyCode(evt)
	193
	194	/****************************************************************************
	195	REMARKS:
	196	Safely abort the event module upon catching a fatal error.
	197	****************************************************************************/
	198	void _EVT_abort()
	199	{
	200	EVT_exit();
	201	PM_fatalError("Unhandled exception!");
	202	}
	203
	204	/****************************************************************************
	205	PARAMETERS:
	206	mouseMove - Callback function to call wheneve the mouse needs to be moved
	207
	208	REMARKS:
	209	Initiliase the event handling module. Here we install our mouse handling ISR
	210	to be called whenever any button's are pressed or released. We also build
	211	the free list of events in the event queue.
	212
	213	We use handler number 2 of the mouse libraries interrupt handlers for our
	214	event handling routines.
	215	****************************************************************************/
	216	void EVTAPI EVT_init(
	217	_EVT_mouseMoveHandler mouseMove)
	218	{
	219	/* Initialise the event queue */
	220	_mouseMove = mouseMove;
	221	initEventQueue();
	222	memset(keyUpMsg,0,sizeof(keyUpMsg));
	223
	224	/* Catch program termination signals so we can clean up properly */
	225	signal(SIGABRT, _EVT_abort);
	226	signal(SIGFPE, _EVT_abort);
	227	signal(SIGINT, _EVT_abort);
	228	}
	229
	230	/****************************************************************************
	231	REMARKS
	232	Changes the range of coordinates returned by the mouse functions to the
	233	specified range of values. This is used when changing between graphics
	234	modes set the range of mouse coordinates for the new display mode.
	235	****************************************************************************/
	236	void EVTAPI EVT_setMouseRange(
	237	int xRes,
	238	int yRes)
	239	{
	240	rangeX = xRes;
	241	rangeY = yRes;
	242	}
	243
	244	/****************************************************************************
245	REMARKS
246	Modifes the mouse coordinates as necessary if scaling to OS coordinates,
247	and sets the OS mouse cursor position.
248	****************************************************************************/
249	void _EVT_setMousePos(
250	int *x,
251	int *y)
252	{
253	SetCursorPos(x,y);
254	}
255
256	/****************************************************************************
257	REMARKS:
258	Initiailises the internal event handling modules. The EVT_suspend function
259	can be called to suspend event handling (such as when shelling out to DOS),
260	and this function can be used to resume it again later.
261	****************************************************************************/
262	void EVT_resume(void)
263	{
8bde7f77	264	/* Do nothing for Win32 */
c7de829c WD	265	}
	266
	267	/****************************************************************************
	268	REMARKS
	269	Suspends all of our event handling operations. This is also used to
	270	de-install the event handling code.
	271	****************************************************************************/
	272	void EVT_suspend(void)
	273	{
8bde7f77	274	/* Do nothing for Win32 */
c7de829c WD	275	}
	276
	277	/****************************************************************************
	278	REMARKS
	279	Exits the event module for program terminatation.
	280	****************************************************************************/
	281	void EVT_exit(void)
	282	{
	283	/* Restore signal handlers */
	284	signal(SIGABRT, SIG_DFL);
	285	signal(SIGFPE, SIG_DFL);
	286	signal(SIGINT, SIG_DFL);
	287	}