static void
processEventsAndTimeouts(void)
{
do {
#if defined(_WIN32)
MSG event;
if(!GetMessage(&event, NULL, 0, 0)) /* bail if no more messages */
exit(0);
TranslateMessage(&event); /* translate virtual-key messages */
DispatchMessage(&event); /* call the window proc */
/* see win32_event.c for event (message) processing procedures */
#else
static int mappedMenuButton;
GLUTeventParser *parser;
XEvent event, ahead;
GLUTwindow *window;
GLUTkeyboardCB keyboard;
GLUTspecialCB special;
int gotEvent, width, height;
gotEvent = interruptibleXNextEvent(__glutDisplay, &event);
if (gotEvent) {
switch (event.type) {
case MappingNotify:
XRefreshKeyboardMapping((XMappingEvent *) & event);
break;
case ConfigureNotify:
window = __glutGetWindow(event.xconfigure.window);
if (window) {
if (window->win != event.xconfigure.window) {
/* Ignore ConfigureNotify sent to the overlay
planes. GLUT could get here because overlays
select for StructureNotify events to receive
DestroyNotify. */
break;
}
width = event.xconfigure.width;
height = event.xconfigure.height;
if (width != window->width || height != window->height) {
if (window->overlay) {
XResizeWindow(__glutDisplay, window->overlay->win, width, height);
}
window->width = width;
window->height = height;
__glutSetWindow(window);
/* Do not execute OpenGL out of sequence with
respect to the XResizeWindow request! */
glXWaitX();
window->reshape(width, height);
window->forceReshape = False;
/* A reshape should be considered like posting a
repair; this is necessary for the "Mesa
glXSwapBuffers to repair damage" hack to operate
correctly. Without it, there's not an initial
back buffer render from which to blit from when
damage happens to the window. */
__glutPostRedisplay(window, GLUT_REPAIR_WORK);
}
}
break;
case Expose:
/* compress expose events */
while (XEventsQueued(__glutDisplay, QueuedAfterReading)
> 0) {
XPeekEvent(__glutDisplay, &ahead);
if (ahead.type != Expose ||
ahead.xexpose.window != event.xexpose.window) {
break;
}
XNextEvent(__glutDisplay, &event);
}
if (event.xexpose.count == 0) {
GLUTmenu *menu;
if (__glutMappedMenu &&
(menu = __glutGetMenu(event.xexpose.window))) {
__glutPaintMenu(menu);
} else {
window = __glutGetWindow(event.xexpose.window);
if (window) {
if (window->win == event.xexpose.window) {
__glutPostRedisplay(window, GLUT_REPAIR_WORK);
} else if (window->overlay && window->overlay->win == event.xexpose.window) {
__glutPostRedisplay(window, GLUT_OVERLAY_REPAIR_WORK);
}
}
}
} else {
/* there are more exposes to read; wait to redisplay */
}
break;
case ButtonPress:
case ButtonRelease:
if (__glutMappedMenu && event.type == ButtonRelease
&& mappedMenuButton == event.xbutton.button) {
/* Menu is currently popped up and its button is
released. */
__glutFinishMenu(event.xbutton.window, event.xbutton.x, event.xbutton.y);
} else {
window = __glutGetWindow(event.xbutton.window);
/* added button check for mice with > 3 buttons */
if (window) {
GLUTmenu *menu;
int menuNum;
if (event.xbutton.button <= GLUT_MAX_MENUS)
menuNum = window->menu[event.xbutton.button - 1];
else
menuNum = 0;
/* Make sure that __glutGetMenuByNum is only called if there
really is a menu present. */
if ((menuNum > 0) && (menu = __glutGetMenuByNum(menuNum))) {
if (event.type == ButtonPress && !__glutMappedMenu) {
__glutStartMenu(menu, window,
event.xbutton.x_root, event.xbutton.y_root,
event.xbutton.x, event.xbutton.y);
mappedMenuButton = event.xbutton.button;
} else {
/* Ignore a release of a button with a menu
attatched to it when no menu is popped up,
or ignore a press when another menu is
already popped up. */
}
} else if (window->mouse) {
__glutSetWindow(window);
__glutModifierMask = event.xbutton.state;
window->mouse(event.xbutton.button - 1,
event.type == ButtonRelease ?
GLUT_UP : GLUT_DOWN,
event.xbutton.x, event.xbutton.y);
__glutModifierMask = ~0;
} else {
/* Stray mouse events. Ignore. */
}
} else {
/* Window might have been destroyed and all the
events for the window may not yet be received. */
}
}
break;
case MotionNotify:
if (!__glutMappedMenu) {
window = __glutGetWindow(event.xmotion.window);
if (window) {
/* If motion function registered _and_ buttons held
* down, call motion function... */
if (window->motion && event.xmotion.state &
(Button1Mask | Button2Mask | Button3Mask)) {
__glutSetWindow(window);
window->motion(event.xmotion.x, event.xmotion.y);
}
/* If passive motion function registered _and_
buttons not held down, call passive motion
function... */
else if (window->passive &&
((event.xmotion.state &
(Button1Mask | Button2Mask | Button3Mask)) ==
0)) {
__glutSetWindow(window);
window->passive(event.xmotion.x,
event.xmotion.y);
}
}
} else {
/* Motion events are thrown away when a pop up menu
is active. */
}
break;
case KeyPress:
case KeyRelease:
window = __glutGetWindow(event.xkey.window);
if (!window) {
break;
}
if (event.type == KeyPress) {
keyboard = window->keyboard;
} else {
/* If we are ignoring auto repeated keys for this window,
check if the next event in the X event queue is a KeyPress
for the exact same key (and at the exact same time) as the
key being released. The X11 protocol will send auto
repeated keys as such KeyRelease/KeyPress pairs. */
if (window->ignoreKeyRepeat) {
if (XEventsQueued(__glutDisplay, QueuedAfterReading)) {
XPeekEvent(__glutDisplay, &ahead);
if (ahead.type == KeyPress
&& ahead.xkey.window == event.xkey.window
&& ahead.xkey.keycode == event.xkey.keycode
&& ahead.xkey.time == event.xkey.time) {
/* Pop off the repeated KeyPress and ignore
the auto repeated KeyRelease/KeyPress pair. */
XNextEvent(__glutDisplay, &event);
break;
}
}
}
keyboard = window->keyboardUp;
}
if (keyboard) {
char tmp[1];
int rc;
rc = XLookupString(&event.xkey, tmp, sizeof(tmp),
NULL, NULL);
if (rc) {
__glutSetWindow(window);
__glutModifierMask = event.xkey.state;
keyboard(tmp[0],
event.xkey.x, event.xkey.y);
__glutModifierMask = ~0;
break;
}
}
if (event.type == KeyPress) {
special = window->special;
} else {
special = window->specialUp;
}
if (special) {
KeySym ks;
int key;
/* Introduced in X11R6: (Partial list of) Keypad Functions. Define
in place in case compiling against an older pre-X11R6
X11/keysymdef.h file. */
#ifndef XK_KP_Home
#define XK_KP_Home 0xFF95
#endif
#ifndef XK_KP_Left
#define XK_KP_Left 0xFF96
#endif
#ifndef XK_KP_Up
#define XK_KP_Up 0xFF97
#endif
#ifndef XK_KP_Right
#define XK_KP_Right 0xFF98
#endif
#ifndef XK_KP_Down
#define XK_KP_Down 0xFF99
#endif
#ifndef XK_KP_Prior
#define XK_KP_Prior 0xFF9A
#endif
#ifndef XK_KP_Next
#define XK_KP_Next 0xFF9B
#endif
#ifndef XK_KP_End
#define XK_KP_End 0xFF9C
#endif
#ifndef XK_KP_Insert
#define XK_KP_Insert 0xFF9E
#endif
#ifndef XK_KP_Delete
#define XK_KP_Delete 0xFF9F
#endif
ks = XLookupKeysym((XKeyEvent *) & event, 0);
/* XXX Verbose, but makes no assumptions about keysym
layout. */
switch (ks) {
/* *INDENT-OFF* */
/* function keys */
case XK_F1: key = GLUT_KEY_F1; break;
case XK_F2: key = GLUT_KEY_F2; break;
case XK_F3: key = GLUT_KEY_F3; break;
case XK_F4: key = GLUT_KEY_F4; break;
case XK_F5: key = GLUT_KEY_F5; break;
case XK_F6: key = GLUT_KEY_F6; break;
case XK_F7: key = GLUT_KEY_F7; break;
case XK_F8: key = GLUT_KEY_F8; break;
case XK_F9: key = GLUT_KEY_F9; break;
case XK_F10: key = GLUT_KEY_F10; break;
case XK_F11: key = GLUT_KEY_F11; break;
case XK_F12: key = GLUT_KEY_F12; break;
/* directional keys */
case XK_KP_Left:
case XK_Left: key = GLUT_KEY_LEFT; break;
case XK_KP_Up: /* Introduced in X11R6. */
case XK_Up: key = GLUT_KEY_UP; break;
case XK_KP_Right: /* Introduced in X11R6. */
case XK_Right: key = GLUT_KEY_RIGHT; break;
case XK_KP_Down: /* Introduced in X11R6. */
case XK_Down: key = GLUT_KEY_DOWN; break;
/* *INDENT-ON* */
case XK_KP_Prior: /* Introduced in X11R6. */
case XK_Prior:
/* XK_Prior same as X11R6's XK_Page_Up */
key = GLUT_KEY_PAGE_UP;
break;
case XK_KP_Next: /* Introduced in X11R6. */
case XK_Next:
/* XK_Next same as X11R6's XK_Page_Down */
key = GLUT_KEY_PAGE_DOWN;
break;
case XK_KP_Home: /* Introduced in X11R6. */
case XK_Home:
key = GLUT_KEY_HOME;
break;
#ifdef __hpux
case XK_Select:
#endif
case XK_KP_End: /* Introduced in X11R6. */
case XK_End:
key = GLUT_KEY_END;
break;
#ifdef __hpux
case XK_InsertChar:
#endif
case XK_KP_Insert: /* Introduced in X11R6. */
case XK_Insert:
key = GLUT_KEY_INSERT;
break;
#ifdef __hpux
case XK_DeleteChar:
#endif
case XK_KP_Delete: /* Introduced in X11R6. */
/* The Delete character is really an ASCII key. */
__glutSetWindow(window);
keyboard(127, /* ASCII Delete character. */
event.xkey.x, event.xkey.y);
goto skip;
default:
goto skip;
}
__glutSetWindow(window);
__glutModifierMask = event.xkey.state;
special(key, event.xkey.x, event.xkey.y);
__glutModifierMask = ~0;
skip:;
}
break;
case EnterNotify:
case LeaveNotify:
if (event.xcrossing.mode != NotifyNormal ||
event.xcrossing.detail == NotifyNonlinearVirtual ||
event.xcrossing.detail == NotifyVirtual) {
/* Careful to ignore Enter/LeaveNotify events that
come from the pop-up menu pointer grab and ungrab.
Also, ignore "virtual" Enter/LeaveNotify events
since they represent the pointer passing through
the window hierarchy without actually entering or
leaving the actual real estate of a window. */
break;
}
if (__glutMappedMenu) {
GLUTmenuItem *item;
int num;
item = __glutGetMenuItem(__glutMappedMenu,
event.xcrossing.window, &num);
if (item) {
__glutMenuItemEnterOrLeave(item, num, event.type);
break;
}
}
window = __glutGetWindow(event.xcrossing.window);
if (window) {
if (window->entry) {
if (event.type == EnterNotify) {
/* With overlays established, X can report two
enter events for both the overlay and normal
plane window. Do not generate a second enter
callback if we reported one without an
intervening leave. */
if (window->entryState != EnterNotify) {
int num = window->num;
Window xid = window->win;
window->entryState = EnterNotify;
__glutSetWindow(window);
window->entry(GLUT_ENTERED);
if (__glutMappedMenu) {
/* Do not generate any passive motion events
when menus are in use. */
} else {
/* An EnterNotify event can result in a
"compound" callback if a passive motion
callback is also registered. In this case,
be a little paranoid about the possibility
the window could have been destroyed in the
entry callback. */
window = __glutWindowList[num];
if (window && window->passive && window->win == xid) {
__glutSetWindow(window);
window->passive(event.xcrossing.x, event.xcrossing.y);
}
}
}
} else {
if (window->entryState != LeaveNotify) {
/* When an overlay is established for a window
already mapped and with the pointer in it,
the X server will generate a leave/enter
event pair as the pointer leaves (without
moving) from the normal plane X window to
the newly mapped overlay X window (or vice
versa). This enter/leave pair should not be
reported to the GLUT program since the pair
is a consequence of creating (or destroying)
the overlay, not an actual leave from the
GLUT window. */
if (XEventsQueued(__glutDisplay, QueuedAfterReading)) {
XPeekEvent(__glutDisplay, &ahead);
if (ahead.type == EnterNotify &&
__glutGetWindow(ahead.xcrossing.window) == window) {
XNextEvent(__glutDisplay, &event);
break;
}
}
window->entryState = LeaveNotify;
__glutSetWindow(window);
window->entry(GLUT_LEFT);
}
}
} else if (window->passive) {
__glutSetWindow(window);
window->passive(event.xcrossing.x, event.xcrossing.y);
}
}
break;
case UnmapNotify:
/* MapNotify events are not needed to maintain
visibility state since VisibilityNotify events will
be delivered when a window becomes visible from
mapping. However, VisibilityNotify events are not
delivered when a window is unmapped (for the window
or its children). */
window = __glutGetWindow(event.xunmap.window);
if (window) {
if (window->win != event.xconfigure.window) {
/* Ignore UnmapNotify sent to the overlay planes.
GLUT could get here because overlays select for
StructureNotify events to receive DestroyNotify.
*/
break;
}
markWindowHidden(window);
}
break;
case VisibilityNotify:
window = __glutGetWindow(event.xvisibility.window);
if (window) {
/* VisibilityUnobscured+1 = GLUT_FULLY_RETAINED,
VisibilityPartiallyObscured+1 =
GLUT_PARTIALLY_RETAINED, VisibilityFullyObscured+1
= GLUT_FULLY_COVERED. */
int visState = event.xvisibility.state + 1;
if (visState != window->visState) {
if (window->windowStatus) {
window->visState = visState;
__glutSetWindow(window);
window->windowStatus(visState);
}
}
}
break;
case ClientMessage:
if (event.xclient.data.l[0] == __glutWMDeleteWindow)
exit(0);
break;
case DestroyNotify:
purgeStaleWindow(event.xdestroywindow.window);
break;
case CirculateNotify:
case CreateNotify:
case GravityNotify:
case ReparentNotify:
/* Uninteresting to GLUT (but possible for GLUT to
receive). */
break;
default:
/* Pass events not directly handled by the GLUT main
event loop to any event parsers that have been
registered. In this way, X Input extension events
are passed to the correct handler without forcing
all GLUT programs to support X Input event handling.
*/
parser = eventParserList;
while (parser) {
if (parser->func(&event))
break;
parser = parser->next;
}
break;
}
}
#endif /* _WIN32 */
if (__glutTimerList) {
handleTimeouts();
}
}
while (XPending(__glutDisplay));
}
LONG WINAPI __glutWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
POINT point; /* Point structure. */
PAINTSTRUCT ps; /* Paint structure. */
LPMINMAXINFO minmax; /* Minimum/maximum info structure. */
GLUTwindow* window; /* GLUT window associated with message. */
GLUTmenu* menu; /* GLUT menu associated with message. */
int x, y, width, height, key;
int button = -1;
switch(msg) {
case WM_CREATE:
return 0;
case WM_CLOSE:
PostQuitMessage(0);
return 0;
case WM_DESTROY:
#if 0
/* TODO: need to add this. */
purgeStaleWindow(hwnd);
#endif
return 0;
case WM_PAINT:
window = __glutGetWindow(hwnd);
if (window) {
BeginPaint(hwnd, &ps); /* Must have this for some Win32 reason. */
#if TAKE_THIS_OUT
if (window->colormap) {
SelectPalette(window->hdc, window->colormap->cmap, FORCE_FOREGROUND);
RealizePalette(window->hdc); /* Remap the custom palette. */
}
#endif
EndPaint(hwnd, &ps);
if (window->win == hwnd) {
__glutPostRedisplay(window, GLUT_REPAIR_WORK);
} else if (window->overlay && window->overlay->win == hwnd) {
__glutPostRedisplay(window, GLUT_OVERLAY_REPAIR_WORK);
}
}
return 0;
case WM_SYSCHAR:
case WM_CHAR:
window = __glutGetWindow(hwnd);
if (!window) {
break;
}
/* Win32 is dumb and sends these messages only to the parent
window. Therefore, find out if we're in a child window and
call the child windows keyboard callback if we are. */
if (window->parent) {
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
hwnd = ChildWindowFromPoint(hwnd, point);
window = __glutGetWindow(hwnd);
}
if (window->keyboard) {
GetCursorPos(&point);
ScreenToClient(window->win, &point);
__glutSetWindow(window);
__glutModifierMask = 0;
if (GetKeyState(VK_SHIFT) < 0) /* < 0 = high order bit is on */
__glutModifierMask |= ShiftMask;
if (GetKeyState(VK_CONTROL) < 0)
__glutModifierMask |= ControlMask;
if (GetKeyState(VK_MENU) < 0)
__glutModifierMask |= Mod1Mask;
window->keyboard((char)wParam, point.x, point.y);
__glutModifierMask = (unsigned int) ~0;
}
return 0;
case WM_SYSKEYDOWN:
case WM_KEYDOWN:
window = __glutGetWindow(hwnd);
if (!window) {
break;
}
/* Win32 is dumb and sends these messages only to the parent
window. Therefore, find out if we're in a child window and
call the child windows keyboard callback if we are. */
if (window->parent) {
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
hwnd = ChildWindowFromPoint(hwnd, point);
window = __glutGetWindow(hwnd);
}
if (window->special) {
switch (wParam) {
/* *INDENT-OFF* */
/* function keys */
case VK_F1: key = GLUT_KEY_F1; break;
case VK_F2: key = GLUT_KEY_F2; break;
case VK_F3: key = GLUT_KEY_F3; break;
case VK_F4: key = GLUT_KEY_F4; break;
case VK_F5: key = GLUT_KEY_F5; break;
case VK_F6: key = GLUT_KEY_F6; break;
case VK_F7: key = GLUT_KEY_F7; break;
case VK_F8: key = GLUT_KEY_F8; break;
case VK_F9: key = GLUT_KEY_F9; break;
case VK_F10: key = GLUT_KEY_F10; break;
case VK_F11: key = GLUT_KEY_F11; break;
case VK_F12: key = GLUT_KEY_F12; break;
/* directional keys */
case VK_LEFT: key = GLUT_KEY_LEFT; break;
case VK_UP: key = GLUT_KEY_UP; break;
case VK_RIGHT: key = GLUT_KEY_RIGHT; break;
case VK_DOWN: key = GLUT_KEY_DOWN; break;
/* *INDENT-ON* */
case VK_PRIOR:
/* VK_PRIOR is Win32's Page Up */
key = GLUT_KEY_PAGE_UP;
break;
case VK_NEXT:
/* VK_NEXT is Win32's Page Down */
key = GLUT_KEY_PAGE_DOWN;
break;
case VK_HOME:
key = GLUT_KEY_HOME;
break;
case VK_END:
key = GLUT_KEY_END;
break;
case VK_INSERT:
key = GLUT_KEY_INSERT;
break;
default:
goto defproc;
}
GetCursorPos(&point);
ScreenToClient(window->win, &point);
__glutSetWindow(window);
__glutModifierMask = 0;
if (GetKeyState(VK_SHIFT) < 0) /* < 0 = high order bit is on */
__glutModifierMask |= ShiftMask;
if (GetKeyState(VK_CONTROL) < 0)
__glutModifierMask |= ControlMask;
if (GetKeyState(VK_MENU) < 0)
__glutModifierMask |= Mod1Mask;
window->special(key, point.x, point.y);
__glutModifierMask = (unsigned int) ~0;
}
return 0;
case WM_LBUTTONDOWN:
button = GLUT_LEFT_BUTTON;
case WM_MBUTTONDOWN:
if (button < 0)
button = GLUT_MIDDLE_BUTTON;
case WM_RBUTTONDOWN:
if (button < 0)
button = GLUT_RIGHT_BUTTON;
/* finish the menu if we get a button down message (user must have
cancelled the menu). */
if (__glutMappedMenu) {
/* TODO: take this out once the menu on middle mouse stuff works
properly. */
if (button == GLUT_MIDDLE_BUTTON)
return 0;
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
__glutItemSelected = NULL;
__glutFinishMenu(hwnd, point.x, point.y);
return 0;
}
/* set the capture so we can get mouse events outside the window */
SetCapture(hwnd);
/* Win32 doesn't return the same numbers as X does when the mouse
goes beyond the upper or left side of the window. roll the
Win32's 0..2^16 pointer co-ord range to 0 +/- 2^15. */
x = LOWORD(lParam);
y = HIWORD(lParam);
if(x & 1 << 15) x -= (1 << 16);
if(y & 1 << 15) y -= (1 << 16);
window = __glutGetWindow(hwnd);
if (window) {
menu = __glutGetMenuByNum(window->menu[button]);
if (menu) {
point.x = LOWORD(lParam); point.y = HIWORD(lParam);
ClientToScreen(window->win, &point);
__glutMenuButton = button == GLUT_RIGHT_BUTTON ? TPM_RIGHTBUTTON :
button == GLUT_LEFT_BUTTON ? TPM_LEFTBUTTON :
0x0001;
__glutStartMenu(menu, window, point.x, point.y, x, y);
} else if (window->mouse) {
__glutSetWindow(window);
__glutModifierMask = 0;
if (GetKeyState(VK_SHIFT) < 0) /* < 0 = high order bit is on. */
__glutModifierMask |= ShiftMask;
if (GetKeyState(VK_CONTROL) < 0)
__glutModifierMask |= ControlMask;
if (GetKeyState(VK_MENU) < 0)
__glutModifierMask |= Mod1Mask;
window->mouse(button, GLUT_DOWN, x, y);
__glutModifierMask = (unsigned int)~0;
} else {
/* Stray mouse events. Ignore. */
}
}
return 0;
case WM_LBUTTONUP:
button = GLUT_LEFT_BUTTON;
case WM_MBUTTONUP:
if (button < 0)
button = GLUT_MIDDLE_BUTTON;
case WM_RBUTTONUP:
if (button < 0)
button = GLUT_RIGHT_BUTTON;
/* Bail out if we're processing a menu. */
if (__glutMappedMenu) {
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
/* if we're getting the middle button up signal, then something
on the menu was selected. */
if (button == GLUT_MIDDLE_BUTTON) {
return 0;
/* For some reason, the code below always returns -1 even
though the point IS IN THE ITEM! Therefore, just bail out if
we get a middle mouse up. The user must select using the
left mouse button. Stupid Win32. */
#if 0
int item = MenuItemFromPoint(hwnd, __glutHMenu, point);
printf("item = %d %d %d\n", item, point.x, point.y);
if (item != -1)
__glutItemSelected = (GLUTmenuItem*)GetMenuItemID(__glutHMenu, item);
else
__glutItemSelected = NULL;
__glutFinishMenu(hwnd, point.x, point.y);
#endif
} else {
__glutItemSelected = NULL;
__glutFinishMenu(hwnd, point.x, point.y);
}
return 0;
}
/* Release the mouse capture. */
ReleaseCapture();
window = __glutGetWindow(hwnd);
if (window && window->mouse) {
/* Win32 doesn't return the same numbers as X does when the
mouse goes beyond the upper or left side of the window. roll
the Win32's 0..2^16 pointer co-ord range to 0 +/- 2^15. */
x = LOWORD(lParam);
y = HIWORD(lParam);
if(x & 1 << 15) x -= (1 << 16);
if(y & 1 << 15) y -= (1 << 16);
__glutSetWindow(window);
__glutModifierMask = 0;
if (GetKeyState(VK_SHIFT) < 0) /* < 0 = high order bit is on */
__glutModifierMask |= ShiftMask;
if (GetKeyState(VK_CONTROL) < 0)
__glutModifierMask |= ControlMask;
if (GetKeyState(VK_MENU) < 0)
__glutModifierMask |= Mod1Mask;
window->mouse(button, GLUT_UP, x, y);
__glutModifierMask = (unsigned int)~0;
} else {
/* Window might have been destroyed and all the
events for the window may not yet be received. */
}
return 0;
case WM_ENTERMENULOOP:
/* KLUDGE: create a timer that fires every 100 ms when we start a
menu so that we can still process the idle & timer events (that
way, the timers will fire during a menu pick and so will the
idle func. */
SetTimer(hwnd, 1, 1, NULL);
return 0;
case WM_TIMER:
#if 0
/* if the timer id is 2, then this is the timer that is set up in
the main glut message processing loop, and we don't want to do
anything but acknowledge that we got it. It is used to prevent
CPU spiking when an idle function is installed. */
if (wParam == 2)
return 0;
#endif
/* only worry about the idle function and the timeouts, since
these are the only events we expect to process during
processing of a menu. */
/* we no longer process the idle functions (as outlined in the
README), since drawing can't be done until the menu has
finished...it's pretty lame when the animation goes on, but
doesn't update, so you get this weird jerkiness. */
#if 0
if (__glutIdleFunc)
__glutIdleFunc();
#endif
if (__glutTimerList)
handleTimeouts();
return 0;
case WM_EXITMENULOOP:
/* nuke the above created timer...we don't need it anymore, since
the menu is gone now. */
KillTimer(hwnd, 1);
return 0;
case WM_MENUSELECT:
if (lParam != 0)
__glutHMenu = (HMENU)lParam;
return 0;
case WM_COMMAND:
if (__glutMappedMenu) {
if (GetSubMenu(__glutHMenu, LOWORD(wParam)))
__glutItemSelected = NULL;
else
__glutItemSelected =
__glutGetUniqueMenuItem(__glutMappedMenu, LOWORD(wParam));
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
__glutFinishMenu(hwnd, point.x, point.y);
}
return 0;
case WM_MOUSEMOVE:
if (!__glutMappedMenu) {
window = __glutGetWindow(hwnd);
if (window) {
/* If motion function registered _and_ buttons held *
down, call motion function... */
x = LOWORD(lParam);
y = HIWORD(lParam);
/* Win32 doesn't return the same numbers as X does when the
mouse goes beyond the upper or left side of the window.
roll the Win32's 0..2^16 pointer co-ord range to 0..+/-2^15. */
if(x & 1 << 15) x -= (1 << 16);
if(y & 1 << 15) y -= (1 << 16);
if (window->motion && wParam &
(MK_LBUTTON | MK_MBUTTON | MK_RBUTTON)) {
__glutSetWindow(window);
window->motion(x, y);
}
/* If passive motion function registered _and_
buttons not held down, call passive motion
function... */
else if (window->passive &&
((wParam &
(MK_LBUTTON | MK_MBUTTON | MK_RBUTTON)) ==
0)) {
__glutSetWindow(window);
window->passive(x, y);
}
}
} else {
/* Motion events are thrown away when a pop up menu is
active. */
}
return 0;
case WM_GETMINMAXINFO:
/* this voodoo is brought to you by Win32 (again). It allows the
window to be bigger than the screen, and smaller than 100x100
(although it doesn't seem to help the y minimum). */
minmax = (LPMINMAXINFO)lParam;
minmax->ptMaxSize.x = __glutScreenWidth;
minmax->ptMaxSize.y = __glutScreenHeight;
minmax->ptMinTrackSize.x = 0;
minmax->ptMinTrackSize.y = 0;
minmax->ptMaxTrackSize.x = __glutScreenWidth +
GetSystemMetrics(SM_CXSIZE) * 2;
minmax->ptMaxTrackSize.y = __glutScreenHeight +
GetSystemMetrics(SM_CXSIZE) * 2 + GetSystemMetrics(SM_CYCAPTION);
return 0;
case WM_SIZE:
window = __glutGetWindow(hwnd);
if (window) {
#if 0
if (window->win != hwnd) {
/* Ignore ConfigureNotify sent to the overlay planes.
GLUT could get here because overlays select for
StructureNotify events to receive DestroyNotify. */
break;
}
#endif
width = LOWORD(lParam);
height = HIWORD(lParam);
if (width != window->width || height != window->height) {
#if 0
if (window->overlay) {
XResizeWindow(__glutDisplay, window->overlay->win, width, height);
}
#endif
window->width = width;
window->height = height;
__glutSetWindow(window);
/* Do not execute OpenGL out of sequence with respect
to the SetWindowPos request! */
GdiFlush();
window->reshape(width, height);
window->forceReshape = FALSE;
/* A reshape should be considered like posting a
repair request. */
__glutPostRedisplay(window, GLUT_REPAIR_WORK);
}
}
return 0;
case WM_SETCURSOR:
/* If the cursor is not in the client area, then we want to send
this message to the default window procedure ('cause its
probably in the border or title, and we don't handle that
cursor. otherwise, set our cursor. Win32 makes us set the
cursor every time the mouse moves (DUMB!). */
if(LOWORD(lParam) != HTCLIENT)
goto defproc;
window = __glutGetWindow(hwnd);
if (window) {
/* Since Win32 allows the parent to control a child windows
cursor, if the cursor is in a child of this window, bail
out. */
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
if (hwnd != ChildWindowFromPoint(hwnd, point))
break;
__glutCurrentWindow = window;
glutSetCursor(window->cursor);
}
/* TODO: check out the info in DevStudio on WM_SETCURSOR in the
DefaultAction section. */
return 1;
case WM_SETFOCUS:
window = __glutGetWindow(hwnd);
if (window) {
if (window->entry) {
window->entryState = WM_SETFOCUS;
__glutSetWindow(window);
window->entry(GLUT_ENTERED);
/* XXX Generation of fake passive notify? See how much
work the X11 code does to support fake passive notify
callbacks. */
}
}
return 0;
case WM_KILLFOCUS:
window = __glutGetWindow(hwnd);
if (window) {
if (window->entry) {
window->entryState = WM_KILLFOCUS;
__glutSetWindow(window);
window->entry(GLUT_LEFT);
}
}
return 0;
case WM_ACTIVATE:
window = __glutGetWindow(hwnd);
/* make sure we re-select the correct palette if needed */
if (LOWORD(wParam)) {
PostMessage(hwnd, WM_PALETTECHANGED, 0, 0);
}
if (window) {
GLUTwindow* child;
int visState;
visState = !IsIconic(window->win);
if (visState) { /* Not iconic. */
visState = IsWindowVisible(window->win);
}
if (visState != window->visState) {
if (window->windowStatus) {
window->visState = visState;
__glutSetWindow(window);
window->windowStatus(visState);
}
/* Since Win32 only sends an activate for the toplevel window,
update the visibility for all the child windows. */
child = window->children;
while (child) {
child->visState = visState;
if (child->windowStatus) {
child->visState = visState;
__glutSetWindow(child);
child->windowStatus(visState);
}
child = child->siblings;
}
}
}
return 0;
/* Colour Palette Management */
case WM_PALETTECHANGED:
if (hwnd == (HWND)wParam) /* don't respond to the message that we sent! */
break;
/* fall through to WM_QUERYNEWPALETTE */
case WM_QUERYNEWPALETTE:
window = __glutGetWindow(hwnd);
if (window && window->colormap) {
UnrealizeObject(window->colormap->cmap);
SelectPalette(window->hdc, window->colormap->cmap, FALSE);
RealizePalette(window->hdc);
return TRUE;
}
return FALSE;
#if 0
/* Miscellaneous messages (don't really need to enumerate them,
but it's good to know what you're not getting sometimes.) */
case WM_NCHITTEST:
/* this event is generated by every mouse move event. */
goto defproc;
case WM_NCMOUSEMOVE:
goto defproc;
case WM_NCACTIVATE:
goto defproc;
case WM_NCPAINT:
goto defproc;
case WM_NCCALCSIZE:
goto defproc;
case WM_NCCREATE:
goto defproc;
case WM_NCDESTROY:
goto defproc;
case WM_NCLBUTTONDOWN:
goto defproc;
case WM_SETTEXT:
goto defproc;
case WM_GETTEXT:
goto defproc;
case WM_ACTIVATEAPP:
goto defproc;
case WM_GETICON:
goto defproc;
case WM_ERASEBKGND:
goto defproc;
case WM_WINDOWPOSCHANGING:
goto defproc;
case WM_WINDOWPOSCHANGED:
goto defproc;
case WM_MOUSEACTIVATE:
goto defproc;
case WM_SHOWWINDOW:
goto defproc;
case WM_MOVING:
goto defproc;
case WM_MOVE:
goto defproc;
case WM_KEYUP:
goto defproc;
case WM_CAPTURECHANGED:
goto defproc;
case WM_SYSCOMMAND:
goto defproc;
case WM_ENTERSIZEMOVE:
goto defproc;
case WM_ENTERIDLE:
goto defproc;
#endif
default:
goto defproc;
}
defproc:
return DefWindowProc(hwnd, msg, wParam, lParam);
}
