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/*
* file w32_event.c - event (message) handling for windows
*
* $Id: w32_event.c,v 1.29 2006/02/24 21:57:55 fzago Exp $
*
* Program XBLAST
* (C) by Oliver Vogel (e-mail: m.vogel@ndh.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2; or (at your option)
* any later version
*
* This program is distributed in the hope that it will be entertaining,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILTY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "xblast.h"
#include "w32_event.h"
#include "gui.h"
#include "SDL_vkeys.h"
#include "w32_pixmap.h"
#include "w32_keysym.h"
#include "w32_joystick.h"
#include "w32_socket.h"
#include "geom.h"
#include "cfg_control.h"
#include "timeval.h"
#include "chat.h"
/*
* local constants
*/
#define TIMER_POLL 1
/*
* local types
*/
typedef struct
{
UINT key;
XBEventCode code;
int value;
} GameKeyEvent;
typedef struct _game_key_list
{
GameKeyEvent gke;
struct _game_key_list *next;
} GameKeyList;
typedef struct _poll_func_list
{
XBPollFunction func;
struct _poll_func_list *next;
} PollFuncList;
/*
* local variables
*/
/* MM-Timer */
static UINT idTimer = 0;
static TIMECAPS timeCaps;
/* Polling */
static UINT pollTimer = 0;
static PollFuncList *pollList = NULL;
/* keyboard mode */
static XBKeyboardMode keyboardMode = KB_NONE;
/* mouse mode */
static XBBool mouseEnable = XBTrue;
/* keyboard lookup tables */
static int numKeyMenu = 0;
static int numKeyPress = 0;
static int numKeyRelease = 0;
static int numKeyChat = 0;
static GameKeyEvent *keyMenuTable = NULL;
static GameKeyEvent *keyPressTable = NULL;
static GameKeyEvent *keyReleaseTable = NULL;
static GameKeyEvent *keyChatTable = NULL;
/* clean exit */
static XBQuitFunction quitFunc = NULL;
/*
* compare two GameKeyCode, for sorting
*/
static int
CompareKeyCode (const void *a, const void *b)
{
return (*(UINT *) a) - (*(UINT *) b);
} /* CompareKeyCode */
/*
* create keyboard lookup table from init table
*/
static GameKeyEvent *
CreateGameKeyTable (const CFGKeyTable * init, int *nelem)
{
const CFGKeyTable *ptr;
GameKeyList *list = NULL;
GameKeyList *elem;
GameKeyEvent *table = NULL;
UINT virtualKey;
int i;
assert (nelem != NULL);
*nelem = 0;
/* create list with with all keymappings (part one) */
for (ptr = init; ptr->keysym != NULL; ptr++) {
/* convert keysymbol name to keycode */
virtualKey = StringToVirtualKey (ptr->keysym);
if (0 == virtualKey) {
Dbg_Out ("unknown keysymbol %s.\n", ptr->keysym);
continue;
}
/* create new list element */
elem = calloc (1, sizeof (GameKeyList));
assert (elem != NULL);
elem->gke.key = virtualKey;
elem->gke.code = ptr->eventCode;
elem->gke.value = ptr->eventData;
/* put it into list */
elem->next = list;
list = elem;
/* increment counter */
*nelem += 1;
}
/* create lookup table */
table = malloc (*nelem * sizeof (GameKeyEvent));
assert (table != NULL);
/* store list in array and delete it */
i = 0;
while (list != NULL) {
/* store next one */
elem = list->next;
/* copy data */
assert (i < *nelem);
memcpy (table + i, &list->gke, sizeof (GameKeyEvent));
i++;
/* next one */
free (list);
list = elem;
}
/* now sort it with quicksort */
qsort (table, *nelem, sizeof (GameKeyEvent), CompareKeyCode);
/* now check for double entries */
for (i = 1; i < *nelem; i++) {
if (table[i - 1].key == table[i].key) {
GUI_ErrorMessage ("Multiple bindings for key \"%s\".",
GUI_AtomToString (VirtualKeyToAtom (table[i].key)));
break;
}
}
/* that's all */
return table;
} /* CreateGameKeyTable */
/*
* create keytables
*/
void
GUI_UpdateKeyTables (void)
{
/* game key presses */
if (NULL != keyPressTable) {
free (keyPressTable);
}
keyPressTable = CreateGameKeyTable (GetGameKeyPressTable (), &numKeyPress);
assert (keyPressTable != NULL);
/* game key releases */
if (NULL != keyReleaseTable) {
free (keyReleaseTable);
}
keyReleaseTable = CreateGameKeyTable (GetGameKeyReleaseTable (), &numKeyRelease);
assert (keyReleaseTable != NULL);
/* menu keys */
if (NULL != keyMenuTable) {
free (keyMenuTable);
}
keyMenuTable = CreateGameKeyTable (GetMenuKeyTable (), &numKeyMenu);
assert (keyMenuTable != NULL);
/* chat keys */
if (NULL != keyChatTable) {
free (keyChatTable);
}
keyChatTable = CreateGameKeyTable (GetChatKeyTable (), &numKeyChat);
assert (keyChatTable != NULL);
} /* GUI_UpdateKeyTables */
/*
* init timer
*/
static XBBool
InitTimer (void)
{
if (0 != timeGetDevCaps (&timeCaps, sizeof (timeCaps))) {
return XBFalse;
}
if (0 != timeBeginPeriod (15)) {
return XBFalse;
}
Dbg_Out ("timer from %u to %u\n", timeCaps.wPeriodMin, timeCaps.wPeriodMax);
return XBTrue;
} /* InitTimer */
/*
* callback
*/
static void PASCAL _export
TimerProc (UINT idEvent, UINT dummy, DWORD userData, DWORD dummy1, DWORD dummy2)
{
PostMessage (window, userData, 0, 0);
} /* TimerProc */
/*
* finish timer
*/
static void
FinishTimer ()
{
timeEndPeriod (15);
} /* FinishTimer */
/*
* init event data: key tables and timer
*/
XBBool
InitEvent (void)
{
/* initialize keyboard mapping */
GUI_UpdateKeyTables ();
/* init timers */
(void)InitTimer ();
/* that's all */
return XBTrue;
} /* InitEvent */
/*
* free all key tables in use
*/
void
FinishEvent (void)
{
if (NULL != keyMenuTable) {
free (keyMenuTable);
keyMenuTable = NULL;
numKeyMenu = 0;
}
if (NULL != keyPressTable) {
free (keyPressTable);
keyPressTable = NULL;
numKeyPress = 0;
}
if (NULL != keyReleaseTable) {
free (keyReleaseTable);
keyReleaseTable = NULL;
numKeyRelease = 0;
}
if (NULL != keyChatTable) {
free (keyChatTable);
keyChatTable = NULL;
}
FinishTimer ();
} /* FinishEvent */
/*
* add poll function to the gui event loop
*/
void
GUI_AddPollFunction (XBPollFunction func)
{
PollFuncList *ptr;
if (0 == pollTimer) {
pollTimer = SetTimer (window, TIMER_POLL, 1000, NULL);
assert (0 != pollTimer);
}
assert (func != NULL);
ptr = calloc (1, sizeof (*ptr));
assert (ptr != NULL);
ptr->func = func;
ptr->next = pollList;
pollList = ptr;
} /* GUI_AddPollFunction */
/*
* subtract poll function
*/
void
GUI_SubtractPollFunction (XBPollFunction func)
{
assert (pollList != NULL);
if (pollList->func == func) {
PollFuncList *save = pollList;
pollList = pollList->next;
free (save);
if (pollTimer && !pollList) {
KillTimer (window, pollTimer);
pollTimer = 0;
}
}
else {
PollFuncList *ptr;
for (ptr = pollList; ptr->next != NULL; ptr = ptr->next) {
if (ptr->next->func == func) {
PollFuncList *save = ptr->next;
ptr->next = save->next;
free (save);
}
}
}
} /* GUI_SubtractPollFunction */
/*
* set timer for event
*/
void
GUI_SetTimer (long msec, XBBool periodic)
{
Dbg_Out ("Timer = %ld msec\n", msec);
if (0 != idTimer) {
timeKillEvent (idTimer);
idTimer = 0;
}
if (0 < msec) {
if (periodic) {
idTimer = timeSetEvent (msec, msec / 2, TimerProc, MSG_XBLAST_TIMER, TIME_PERIODIC);
}
else {
(void)timeSetEvent (msec, msec / 2, TimerProc, MSG_XBLAST_TIMER, TIME_ONESHOT);
}
}
} /* GUI_SetTimer */
/*
* set keyboard mode, determines which events are generated by keypresses
*/
void
GUI_SetKeyboardMode (XBKeyboardMode _mode)
{
keyboardMode = _mode;
} /* GUI_SetKeyboardMode */
/*
* set Mouse mode, determines if mouse events are generated
*/
void
GUI_SetMouseMode (XBBool _enable)
{
mouseEnable = _enable;
} /* GUI_SetMouseMode */
/*
* Show/Hide cursor
*/
void GUI_ShowCursor(XBBool enable)
{
/* TODO: show or hide the mouse cursor */
}
/*
* lookup a key table, return success and match
*/
static XBBool
LookupKeyTable (WPARAM wParam, int numKey, const GameKeyEvent * keyTable, GameKeyEvent * key)
{
GameKeyEvent *tmp;
assert (NULL != key);
tmp = bsearch (&wParam, keyTable, numKey, sizeof (GameKeyEvent), CompareKeyCode);
if (NULL != tmp) {
memcpy (key, tmp, sizeof (GameKeyEvent));
return XBTrue;
}
return XBFalse;
} /* LookupKeyTable */
/*
* try to generate chat key event
*/
static XBBool
HandleChatKey (UINT message, WPARAM wParam, LPARAM lParam)
{
GameKeyEvent key;
/* only try to match if chat is active at all */
if (Chat_isListening ()) {
if (LookupKeyTable (wParam, numKeyMenu, keyChatTable, &key)) {
/* check input activity for escape key */
if ((key.value == XBCE_ESCAPE || key.value == XBCE_BACK || key.value == XBCE_ENTER)
&& Chat_GetCurrentCode () == XBE_NONE) {
return XBFalse;
}
QueueEventValue (key.code, key.value + 1000);
return XBTrue;
}
/* if chat input is active, expect character event */
if (Chat_GetCurrentCode () != XBE_NONE) {
return XBTrue;
}
}
return XBFalse;
} /* HandleChatKey */
/*
* try to generate menu key event, but first try chat key event
*/
static void
HandleMenuKey (UINT message, WPARAM wParam, LPARAM lParam)
{
GameKeyEvent key;
/* first try to match chat key */
if (!HandleChatKey (message, wParam, lParam)) {
/* match menu key otherwise */
if (LookupKeyTable (wParam, numKeyMenu, keyMenuTable, &key)) {
QueueEventValue (key.code, key.value);
return;
}
}
} /* HandleMenuKey */
/*
* try to generate game key event; for keypresses, first try chat event
*/
static void
HandleXBlastKey (UINT message, WPARAM wParam, LPARAM lParam)
{
GameKeyEvent key;
GameKeyEvent *table = keyReleaseTable;
int num = numKeyRelease;
if (message == WM_KEYDOWN) {
/* first try matching chat keys */
if (HandleChatKey (message, wParam, lParam)) {
return;
}
table = keyPressTable;
num = numKeyPress;
}
/* no chat key, match xblast key */
if (LookupKeyTable (wParam, num, table, &key)) {
QueueEventValue (key.code, key.value);
return;
}
} /* HandleXBlastKey */
/*
* try to generate ascii key event
*/
static void
HandleAsciiKey (UINT message, WPARAM wParam, LPARAM lParam)
{
char key = wParam;
static int capslock = 0;
/* generate only if requested or chat input is active */
if (keyboardMode != KB_ASCII && Chat_GetCurrentCode () == XBE_NONE) {
return;
}
/* generate ascii event if printable */
if (isprint (key)) {
QueueEventValue (XBE_ASCII, key);
}
else {
/* generate control event */
switch (key) {
/* not needed yet, for future features */
case VK_CAPITAL:
capslock = !capslock;
break;
/* standard keys */
case VK_BACK:
QueueEventValue (XBE_CTRL, XBCK_BACKSPACE);
break;
case VK_ESCAPE:
QueueEventValue (XBE_CTRL, XBCK_ESCAPE);
break;
case VK_RETURN:
QueueEventValue (XBE_CTRL, XBCK_RETURN);
break;
case VK_INSERT:
if (lParam != 3473409) {
QueueEventValue (XBE_CTRL, XBCK_INSERT);
}
else {
QueueEventValue (XBE_ASCII, key);
}
break;
case VK_END:
if (lParam == 21954561) {
QueueEventValue (XBE_CTRL, XBCK_END);
}
else {
QueueEventValue (XBE_ASCII, key);
}
break;
case VK_DELETE:
if (lParam == 22216705) {
QueueEventValue (XBE_CTRL, XBCK_DELETE);
}
else {
QueueEventValue (XBE_ASCII, key);
}
break;
default:
break;
}
}
} /* HandleAsciiKey */
/*
* tyr to generate keysmbol event
*/
static XBBool
HandleKeysymKey (UINT message, WPARAM wParam, LPARAM lParam)
{
if (VK_ESCAPE == wParam) {
QueueEventAtom (XBE_KEYSYM, ATOM_INVALID);
return XBTrue;
}
else {
XBAtom atom = VirtualKeyToAtom (wParam);
if (ATOM_INVALID != atom) {
QueueEventAtom (XBE_KEYSYM, atom);
return XBTrue;
}
}
return XBFalse;
} /* HandleKeysymKey */
/*
* call poll functions
*/
static void
HandlePoll (void)
{
PollFuncList *ptr;
struct timeval tv;
int i = 0;
gettimeofday (&tv, NULL);
for (i = 0, ptr = pollList; ptr != NULL && pollList != NULL; ptr = ptr->next, i++) {
assert (NULL != ptr->func);
(*ptr->func) (&tv);
}
} /* HandlePoll */
/*
* handle query for new palette
*/
static BOOL
HandleNewPalette (void)
{
BOOL result = FALSE;
/* we need the device context */
HDC hdc = GetWindowDC (window);
if (NULL == hdc) {
return FALSE;
}
/* first call , we might need to create our own palette first */
if (NULL == palette) {
if (RC_PALETTE & GetDeviceCaps (hdc, RASTERCAPS)) {
Dbg_Out ("create palette\n");
palette = CreateHalftonePalette (hdc);
}
}
if (NULL != palette) {
HPALETTE oldPalette = SelectPalette (hdc, palette, FALSE);
Dbg_Out ("realize palette\n");
if (RealizePalette (hdc) > 0) {
result = TRUE;
}
(void)SelectPalette (hdc, oldPalette, FALSE);
}
ReleaseDC (window, hdc);
if (result) {
Dbg_Out ("update window\n");
InvalidateRect (window, NULL, FALSE);
}
return result;
} /* HandleNewPalette */
/*
* window event routine
*/
long PASCAL _export
WindowProc (HWND window, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) {
/* redraw (part of) window */
case WM_PAINT:
PaintPixmap (window);
return 0;
case WM_QUERYNEWPALETTE:
return HandleNewPalette ();
/* timer event */
case WM_TIMER:
HandlePoll ();
return 0;
/* mm timer */
case MSG_XBLAST_TIMER:
QueueEventVoid (XBE_TIMER);
return 0;
/* network event */
case MSG_XBLAST_SELECT:
HandleSelect (wParam, lParam);
return 0;
break;
/* handle keypress events */
case WM_SYSKEYDOWN:
break;
case WM_KEYDOWN:
switch (keyboardMode) {
case KB_CHAT:
(void)HandleChatKey (message, wParam, lParam);
break;
case KB_MENU:
HandleMenuKey (message, wParam, lParam);
break;
case KB_XBLAST:
HandleXBlastKey (message, wParam, lParam);
break;
case KB_KEYSYM:
HandleKeysymKey (message, wParam, lParam);
break;
default:
break;
}
return 0;
/* text input */
case WM_SYSCHAR:
break;
case WM_CHAR:
HandleAsciiKey (message, wParam, lParam);
break;
/* handle keyrelease events */
case WM_SYSKEYUP:
break;
case WM_KEYUP:
switch (keyboardMode) {
case KB_XBLAST:
HandleXBlastKey (message, wParam, lParam);
break;
default:
break;
}
return 0;
/* joystick */
case MM_JOY1BUTTONDOWN:
case MM_JOY2BUTTONDOWN:
case MM_JOY1MOVE:
case MM_JOY2MOVE:
switch (keyboardMode) {
case KB_XBLAST:
HandleXBlastJoy (message, wParam, lParam);
break;
case KB_MENU:
HandleMenuJoy (message, wParam, lParam);
break;
default:
break;
}
return 0;
/* mouse */
case WM_LBUTTONDOWN:
if (mouseEnable) {
QueueEventPos (XBE_MOUSE_1, LOWORD (lParam) / BASE_X, HIWORD (lParam) / BASE_Y);
}
return 0;
case WM_RBUTTONDOWN:
if (mouseEnable) {
QueueEventPos (XBE_MOUSE_2, LOWORD (lParam) / BASE_X, HIWORD (lParam) / BASE_Y);
}
return 0;
case WM_MBUTTONDOWN:
if (mouseEnable) {
QueueEventPos (XBE_MOUSE_3, LOWORD (lParam) / BASE_X, HIWORD (lParam) / BASE_Y);
}
return 0;
case WM_LBUTTONUP:
if (mouseEnable) {
QueueEventPos (XBE_RMOUSE_1, LOWORD (lParam) / BASE_X, HIWORD (lParam) / BASE_Y);
}
return 0;
case WM_RBUTTONUP:
if (mouseEnable) {
QueueEventPos (XBE_RMOUSE_2, LOWORD (lParam) / BASE_X, HIWORD (lParam) / BASE_Y);
}
return 0;
case WM_MBUTTONUP:
if (mouseEnable) {
QueueEventPos (XBE_RMOUSE_3, LOWORD (lParam) / BASE_X, HIWORD (lParam) / BASE_Y);
}
return 0;
case WM_MOUSEMOVE:
if (mouseEnable) {
QueueEventPos (XBE_MOUSE_MOVE, LOWORD (lParam) / BASE_X, HIWORD (lParam) / BASE_Y);
}
return 0;
/* xblast event */
case MSG_XBLAST_EVENT_VALUE:
QueueEventValue ((XBEventCode) wParam, (int)lParam);
return 0;
case MSG_XBLAST_EVENT_POINTER:
QueueEventPointer ((XBEventCode) wParam, (void *)lParam);
return 0;
/* end of game */
case WM_DESTROY:
PostQuitMessage (0);
return 0;
default:
break;
}
return DefWindowProc (window, message, wParam, lParam);
} /* WindowProc */
/*
* wait for next event in gui event queue
*/
XBEventCode
GUI_WaitEvent (XBEventData * data)
{
XBEventCode ecode;
MSG msg;
/* only if there are no events in our xblast event queue */
while (XBE_NONE == (ecode = NextEvent (data))) {
/* yes, now get windows events */
if (GetMessage (&msg, NULL, 0, 0)) {
TranslateMessage (&msg);
DispatchMessage (&msg);
}
else {
if (NULL != quitFunc) {
(*quitFunc) ();
}
exit (msg.wParam);
}
}
return ecode;
} /* GUI_WaitEvent */
/*
* peek at next event in queue
*/
XBEventCode
GUI_PeekEvent (XBEventData * data)
{
XBEventCode ecode;
MSG msg;
/* only if there are no events in our xblast event queue */
while (XBE_NONE == (ecode = NextEvent (data))) {
if (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) {
if (msg.message != WM_QUIT) {
TranslateMessage (&msg);
DispatchMessage (&msg);
}
else {
if (NULL != quitFunc) {
(*quitFunc) ();
}
exit (msg.wParam);
}
}
else {
return XBE_NONE;
}
}
return ecode;
} /* GUI_PeekMessage */
/*
* put an event with value in queue
*/
void
GUI_SendEventValue (XBEventCode code, int value)
{
PostMessage (window, MSG_XBLAST_EVENT_VALUE, (WPARAM) code, (LPARAM) value);
} /* GUI_SendEvent */
/*
* put an event with pointer in queue
*/
void
GUI_SendEventPointer (XBEventCode code, void *pointer)
{
PostMessage (window, MSG_XBLAST_EVENT_POINTER, (WPARAM) code, (LPARAM) pointer);
} /* GUI_SendEvent */
/*
* synchronize with display (not needed for win32)
*/
void
GUI_Sync (void)
{
} /* GUI_Sync */
/*
* beep
*/
void
GUI_Bell (void)
{
MessageBeep (0xFFFFFFFF);
} /* GUI_Bell */
/*
* set function when window is destroyed
*/
void
GUI_OnQuit (XBQuitFunction func)
{
quitFunc = func;
} /* GUI_OnQuit */
/*
* end of file w32_event.c
*/
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