/*
* Deactivates a menu pointed by the function argument.
*/
void fgDeactivateSubMenu( SFG_MenuEntry *menuEntry )
{
SFG_Window *current_window = fgStructure.Window;
SFG_MenuEntry *subMenuIter;
/*
* Hide the present menu's window
*/
fgSetWindow( menuEntry->SubMenu->Window );
glutHideWindow( );
/*
* Forget about having that menu active anymore, now:
*/
menuEntry->SubMenu->Window->ActiveMenu = NULL;
menuEntry->SubMenu->IsActive = GL_FALSE;
/*
* Hide all submenu windows, and the root menu's window.
*/
for ( subMenuIter = (SFG_MenuEntry *)menuEntry->SubMenu->Entries.First;
subMenuIter;
subMenuIter = (SFG_MenuEntry *)subMenuIter->Node.Next )
{
/*
* Is that an active submenu by any case?
*/
if( subMenuIter->SubMenu )
fgDeactivateSubMenu( subMenuIter );
}
fgSetWindow( current_window );
}
void fgFinishMenu(SFG_Window *win, int x, int y)
{
unmapMenu(fgMappedMenu);
if(fgState.MenuStatusCallback)
{
fgSetWindow(fgMenuWindow);
fgSetMenu(fgMappedMenu);
/* Setting fgMappedMenu to NULL permits operations that
change menus or destroy the menu window again. */
fgMappedMenu = NULL;
fgState.MenuStatusCallback(GLUT_MENU_NOT_IN_USE, x, y);
}
/* Setting fgMappedMenu to NULL permits operations that
change menus or destroy the menu window again. */
fgMappedMenu = NULL;
/* If an item is selected and it is not a submenu trigger,
generate menu callback. */
if(fgItemSelected && !fgItemSelected->IsTrigger)
{
fgSetWindow(fgMenuWindow);
/* When menu callback is triggered, current menu should be
set to the callback menu. */
fgSetMenu(fgItemSelected->Menu);
fgItemSelected->Menu->Select(fgItemSelected->Value);
}
fgMenuWindow = NULL;
}
/*
* Calls a window's redraw method. This is used when
* a redraw is forced by the incoming window messages,
* or if a redisplay is otherwise pending.
* this is lean and mean without checks as it is
* currently only called from fghcbDisplayWindow which
* only calls this if the window is visible and needs
* a redisplay.
* Note that the fgSetWindow call on Windows makes the
* right device context current on windows, allowing
* direct drawing without BeginPaint/EndPaint in the
* WM_PAINT handler.
*/
void fghRedrawWindow ( SFG_Window *window )
{
SFG_Window *current_window = fgStructure.CurrentWindow;
fgSetWindow( window );
INVOKE_WCB( *window, Display, ( ) );
fgSetWindow( current_window );
}
/*
* Displays the currently active menu for the current window
*/
void fgDisplayMenu( void )
{
SFG_Window* window = fgStructure.Window;
SFG_Menu* menu = NULL;
freeglut_assert_window;
/*
* Check if there is an active menu attached to this window...
*/
menu = window->ActiveMenu;
freeglut_return_if_fail( menu );
fgSetWindow( menu->Window );
glPushAttrib( GL_DEPTH_BUFFER_BIT | GL_TEXTURE_BIT | GL_LIGHTING_BIT |
GL_POLYGON_BIT );
glDisable( GL_DEPTH_TEST );
glDisable( GL_TEXTURE_2D );
glDisable( GL_LIGHTING );
glDisable( GL_CULL_FACE );
glMatrixMode( GL_PROJECTION );
glPushMatrix( );
glLoadIdentity( );
glOrtho(
0, glutGet( GLUT_WINDOW_WIDTH ),
glutGet( GLUT_WINDOW_HEIGHT ), 0,
-1, 1
);
glMatrixMode( GL_MODELVIEW );
glPushMatrix( );
glLoadIdentity( );
fghCheckMenuStatus( window, menu );
fghDisplayMenuBox( menu );
glPopAttrib( );
glMatrixMode( GL_PROJECTION );
glPopMatrix( );
glMatrixMode( GL_MODELVIEW );
glPopMatrix( );
glutSwapBuffers( );
fgSetWindow ( window );
}
/*
* Displays the currently active menu for the current window
*/
void fgDisplayMenu( void )
{
SFG_Window* window = fgStructure.CurrentWindow;
SFG_Menu* menu = NULL;
FREEGLUT_INTERNAL_ERROR_EXIT ( fgStructure.CurrentWindow, "Displaying menu in nonexistent window",
"fgDisplayMenu" );
if (!window) return;
/* Check if there is an active menu attached to this window... */
menu = window->ActiveMenu;
freeglut_return_if_fail( menu );
fgSetWindow( menu->Window );
glPushAttrib( GL_DEPTH_BUFFER_BIT | GL_TEXTURE_BIT | GL_LIGHTING_BIT |
GL_POLYGON_BIT );
glDisable( GL_DEPTH_TEST );
glDisable( GL_TEXTURE_2D );
glDisable( GL_LIGHTING );
glDisable( GL_CULL_FACE );
glMatrixMode( GL_PROJECTION );
glPushMatrix( );
glLoadIdentity( );
glOrtho(
0, glutGet( GLUT_WINDOW_WIDTH ),
glutGet( GLUT_WINDOW_HEIGHT ), 0,
-1, 1
);
glMatrixMode( GL_MODELVIEW );
glPushMatrix( );
glLoadIdentity( );
fghDisplayMenuBox( menu );
glPopAttrib( );
glMatrixMode( GL_PROJECTION );
glPopMatrix( );
glMatrixMode( GL_MODELVIEW );
glPopMatrix( );
glutSwapBuffers( );
fgSetWindow ( window );
}
/*
* Activates a menu pointed by the function argument
*/
static void fghActivateMenu( SFG_Window* window, int button )
{
int max_x, max_y;
/* We'll be referencing this menu a lot, so remember its address: */
SFG_Menu* menu = window->Menu[ button ];
SFG_Window* current_window = fgStructure.CurrentWindow;
/* If the menu is already active in another window, deactivate it there */
if ( menu->ParentWindow )
menu->ParentWindow->ActiveMenu = NULL ;
/* Mark the menu as active, so that it gets displayed: */
window->ActiveMenu = menu;
menu->IsActive = GL_TRUE;
fghSetMenuParentWindow ( window, menu );
fgState.ActiveMenus++;
/* Set up the initial menu position now: */
fghGetVMaxExtent(menu->ParentWindow, &max_x, &max_y);
fgSetWindow( window );
menu->X = window->State.MouseX + glutGet( GLUT_WINDOW_X );
menu->Y = window->State.MouseY + glutGet( GLUT_WINDOW_Y );
if( menu->X + menu->Width > max_x )
menu->X -=menu->Width;
if( menu->Y + menu->Height > max_y )
{
menu->Y -=menu->Height;
if( menu->Y < 0 )
menu->Y = 0;
}
menu->Window->State.MouseX =
window->State.MouseX + glutGet( GLUT_WINDOW_X ) - menu->X;
menu->Window->State.MouseY =
window->State.MouseY + glutGet( GLUT_WINDOW_Y ) - menu->Y;
fgSetWindow( menu->Window );
glutPositionWindow( menu->X, menu->Y );
glutReshapeWindow( menu->Width, menu->Height );
glutPopWindow( );
glutShowWindow( );
menu->Window->ActiveMenu = menu;
fghCheckMenuStatus( menu );
fgSetWindow( current_window );
}
void fgStartMenu(SFG_WinMenu * menu, SFG_Window * window,
int x, int y, int x_win, int y_win)
{
assert(fgMappedMenu == NULL);
fgMappedMenu = menu;
fgMenuWindow = window;
fgItemSelected = NULL;
if(fgState.MenuStatusCallback)
{
fgSetMenu(menu);
fgSetWindow(window);
fgState.MenuStatusCallback(GLUT_MENU_IN_USE, x_win, y_win);
}
eglSwapBuffers(fgDisplay.eglDisplay, window->Window.Surface);
RedrawWindow(window->Window.Handle, NULL, NULL, RDW_INTERNALPAINT);
#ifndef _WIN32_WCE
TrackPopupMenu(menu->Handle, TPM_LEFTALIGN
| (fgMenuButton == TPM_RIGHTBUTTON) ? TPM_RIGHTBUTTON : TPM_LEFTBUTTON,
x, y, 0, fgStructure.Window->Window.Handle, NULL);
#else
TrackPopupMenu(menu->Handle, TPM_LEFTALIGN,
x, y, 0, fgStructure.Window->Window.Handle, NULL);
#endif
}
void fgPlatformMainLoopPreliminaryWork ( void )
{
SFG_Window *window = (SFG_Window *)fgStructure.Windows.First ;
/*
* Processing before the main loop: If there is a window which is open and
* which has a visibility callback, call it. I know this is an ugly hack,
* but I'm not sure what else to do about it. Ideally we should leave
* something uninitialized in the create window code and initialize it in
* the main loop, and have that initialization create a "WM_ACTIVATE"
* message. Then we would put the visibility callback code in the
* "case WM_ACTIVATE" block below. - John Fay -- 10/24/02
*/
while( window )
{
if ( FETCH_WCB( *window, Visibility ) )
{
SFG_Window *current_window = fgStructure.CurrentWindow ;
INVOKE_WCB( *window, Visibility, ( window->State.Visible ) );
fgSetWindow( current_window );
}
window = (SFG_Window *)window->Node.Next ;
}
}
void fghOnReshapeNotify(SFG_Window *window, int width, int height, GLboolean forceNotify)
{
GLboolean notify = GL_FALSE;
if( width != window->State.Width ||
height != window->State.Height )
{
window->State.Width = width;
window->State.Height = height;
notify = GL_TRUE;
}
if (notify || forceNotify)
{
SFG_Window *saved_window = fgStructure.CurrentWindow;
INVOKE_WCB( *window, Reshape, ( width, height ) );
/*
* Force a window redraw. In Windows at least this is only a partial
* solution: if the window is increasing in size in either dimension,
* the already-drawn part does not get drawn again and things look funny.
* But without this we get this bad behaviour whenever we resize the
* window.
* DN: Hmm.. the above sounds like a concern only in single buffered mode...
*/
window->State.WorkMask |= GLUT_DISPLAY_WORK;
if( window->IsMenu )
fgSetWindow( saved_window );
}
}
/*
* This private function creates a menu and adds it to the menus list
*/
SFG_Menu* fgCreateMenu( FGCBMenu menuCallback )
{
int x = 100, y = 100, w = 1, h = 1;
SFG_Window *current_window = fgStructure.CurrentWindow;
/* Have the menu object created */
SFG_Menu* menu = (SFG_Menu *)calloc( sizeof(SFG_Menu), 1 );
menu->ParentWindow = NULL;
/* Create a window for the menu to reside in. */
fgCreateWindow( NULL, "freeglut menu", GL_TRUE, x, y, GL_TRUE, w, h,
GL_FALSE, GL_TRUE );
menu->Window = fgStructure.CurrentWindow;
glutDisplayFunc( fgDisplayMenu );
glutHideWindow( ); /* Hide the window for now */
fgSetWindow( current_window );
/* Initialize the object properties: */
menu->ID = ++fgStructure.MenuID;
menu->Callback = menuCallback;
menu->ActiveEntry = NULL;
fgListInit( &menu->Entries );
fgListAppend( &fgStructure.Menus, &menu->Node );
/* Newly created menus implicitly become current ones */
fgStructure.CurrentMenu = menu;
return menu;
}
/*
* Opens a window. Requires a SFG_Window object created and attached
* to the freeglut structure. OpenGL context is created here.
*/
void fgOpenWindow( SFG_Window* window, const char* title,
GLboolean positionUse, int x, int y,
GLboolean sizeUse, int w, int h,
GLboolean gameMode, GLboolean isSubWindow )
{
fgPlatformOpenWindow( window, title,
positionUse, x, y,
sizeUse, w, h,
gameMode, isSubWindow );
fgSetWindow( window );
window->Window.DoubleBuffered =
( fgState.DisplayMode & GLUT_DOUBLE ) ? 1 : 0;
#ifndef EGL_VERSION_1_0 /* No glDrawBuffer/glReadBuffer in GLES */
if ( ! window->Window.DoubleBuffered )
{
glDrawBuffer ( GL_FRONT );
glReadBuffer ( GL_FRONT );
}
#endif
window->Window.attribute_v_coord = -1;
window->Window.attribute_v_normal = -1;
fgInitGL2();
window->State.NeedToInitContext = GL_TRUE;
}
/*
* This function destroys a window and all of its subwindows. Actually,
* another function, defined in freeglut_window.c is called, but this is
* a whole different story...
*/
void fgDestroyWindow( SFG_Window* window )
{
FREEGLUT_INTERNAL_ERROR_EXIT ( window, "Window destroy function called with null window",
"fgDestroyWindow" );
while( window->Children.First )
fgDestroyWindow( ( SFG_Window * )window->Children.First );
{
SFG_Window *activeWindow = fgStructure.CurrentWindow;
INVOKE_WCB( *window, Destroy, ( ) );
fgSetWindow( activeWindow );
}
if( window->Parent )
fgListRemove( &window->Parent->Children, &window->Node );
else
fgListRemove( &fgStructure.Windows, &window->Node );
if( window->ActiveMenu )
fgDeactivateMenu( window );
fghClearCallBacks( window );
fgCloseWindow( window );
free( window );
if( fgStructure.CurrentWindow == window )
fgStructure.CurrentWindow = NULL;
}
/*
* Activates a menu pointed by the function argument
*/
void fgActivateMenu( SFG_Window* window, int button )
{
/*
* We'll be referencing this menu a lot, so remember its address:
*/
SFG_Menu* menu = window->Menu[ button ];
/*
* Mark the menu as active, so that it gets displayed:
*/
window->ActiveMenu = menu;
menu->IsActive = GL_TRUE;
fgState.ActiveMenus++;
/*
* Set up the initial menu position now:
*/
menu->X = window->State.MouseX + glutGet( GLUT_WINDOW_X );
menu->Y = window->State.MouseY + glutGet( GLUT_WINDOW_Y );
if( menu->X + menu->Width > glutGet ( GLUT_SCREEN_WIDTH ) )
menu->X -=menu->Width;
if( menu->Y + menu->Height > glutGet ( GLUT_SCREEN_HEIGHT ) )
menu->Y -=menu->Height;
fgSetWindow( menu->Window );
glutPositionWindow( menu->X, menu->Y );
glutReshapeWindow( menu->Width, menu->Height );
glutPopWindow( );
glutShowWindow( );
menu->Window->ActiveMenu = menu;
}
/*
* Deactivates a menu pointed by the function argument.
*/
void fgDeactivateMenu( SFG_Window *window )
{
SFG_Window *current_window = fgStructure.Window;
/*
* Check if there is an active menu attached to this window...
*/
SFG_Menu* menu = window->ActiveMenu;
SFG_MenuEntry *menuEntry;
/*
* Did we find an active window?
*/
freeglut_return_if_fail( menu );
/*
* Hide the present menu's window
*/
fgSetWindow( menu->Window );
glutHideWindow( );
/*
* Forget about having that menu active anymore, now:
*/
menu->Window->ActiveMenu = NULL;
menu->ParentWindow->ActiveMenu = NULL;
menu->IsActive = GL_FALSE;
fgState.ActiveMenus--;
/*
* Hide all submenu windows, and the root menu's window.
*/
for ( menuEntry = ( SFG_MenuEntry * )menu->Entries.First;
menuEntry;
menuEntry = ( SFG_MenuEntry * )menuEntry->Node.Next )
{
/*
* Is that an active submenu by any case?
*/
if( menuEntry->SubMenu )
fgDeactivateSubMenu( menuEntry );
}
fgSetWindow( current_window );
}
/*
* This function destroys a menu specified by the parameter. All menus
* and windows are updated to make sure no ill pointers hang around.
*/
void fgDestroyMenu( SFG_Menu* menu )
{
SFG_Window *window;
SFG_Menu *from;
FREEGLUT_INTERNAL_ERROR_EXIT ( menu, "Menu destroy function called with null menu",
"fgDestroyMenu" );
/* First of all, have all references to this menu removed from all windows: */
for( window = (SFG_Window *)fgStructure.Windows.First;
window;
window = (SFG_Window *)window->Node.Next )
fghRemoveMenuFromWindow( window, menu );
/* Now proceed with removing menu entries that lead to this menu */
for( from = ( SFG_Menu * )fgStructure.Menus.First;
from;
from = ( SFG_Menu * )from->Node.Next )
fghRemoveMenuFromMenu( from, menu );
/*
* If the programmer defined a destroy callback, call it
* A. Donev: But first make this the active menu
*/
if( menu->Destroy )
{
SFG_Menu *activeMenu=fgStructure.CurrentMenu;
fgStructure.CurrentMenu = menu;
menu->Destroy( );
fgStructure.CurrentMenu = activeMenu;
}
/*
* Now we are pretty sure the menu is not used anywhere
* and that we can remove all of its entries
*/
while( menu->Entries.First )
{
SFG_MenuEntry *entry = ( SFG_MenuEntry * ) menu->Entries.First;
fgListRemove( &menu->Entries, &entry->Node );
if( entry->Text )
free( entry->Text );
entry->Text = NULL;
free( entry );
}
if( fgStructure.CurrentWindow == menu->Window )
fgSetWindow( NULL );
fgDestroyWindow( menu->Window );
fgListRemove( &fgStructure.Menus, &menu->Node );
if( fgStructure.CurrentMenu == menu )
fgStructure.CurrentMenu = NULL;
free( menu );
}
/*
* This function selects the current window
*/
void FGAPIENTRY glutSetWindow( int ID )
{
SFG_Window* window = NULL;
freeglut_assert_ready;
if( fgStructure.Window != NULL )
if( fgStructure.Window->ID == ID )
return;
window = fgWindowByID( ID );
if( window == NULL )
{
fgWarning( "glutSetWindow(): window ID %i not found!", ID );
return;
}
fgSetWindow( window );
}
/*
* This function selects the current window
*/
void FGAPIENTRY glutSetWindow( int ID )
{
SFG_Window* window = NULL;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindow" );
if( fgStructure.CurrentWindow != NULL )
if( fgStructure.CurrentWindow->ID == ID )
return;
window = fgWindowByID( ID );
if( window == NULL )
{
fgWarning( "glutSetWindow(): window ID %d not found!", ID );
return;
}
fgSetWindow( window );
}
void fghOnPositionNotify(SFG_Window *window, int x, int y, GLboolean forceNotify)
{
GLboolean notify = GL_FALSE;
if( x != window->State.Xpos ||
y != window->State.Ypos )
{
window->State.Xpos = x;
window->State.Ypos = y;
notify = GL_TRUE;
}
if (notify || forceNotify)
{
SFG_Window *saved_window = fgStructure.CurrentWindow;
INVOKE_WCB( *window, Position, ( x, y ) );
fgSetWindow( saved_window );
}
}
static void fghReshapeWindow ( SFG_Window *window, int width, int height )
{
SFG_Window *current_window = fgStructure.CurrentWindow;
freeglut_return_if_fail( window != NULL );
fgPlatformReshapeWindow ( window, width, height );
/*
* Force a window redraw. In Windows at least this is only a partial
* solution: if the window is increasing in size in either dimension,
* the already-drawn part does not get drawn again and things look funny.
* But without this we get this bad behaviour whenever we resize the
* window.
* DN: Hmm.. the above sounds like a concern only in single buffered mode...
*/
window->State.Redisplay = GL_TRUE;
if( window->IsMenu )
fgSetWindow( current_window );
}
/*
* Private function to check for the current menu/sub menu activity state
*/
static GLboolean fghCheckMenuStatus( SFG_Menu* menu )
{
SFG_MenuEntry* menuEntry;
int x, y;
/* First of all check any of the active sub menus... */
for( menuEntry = (SFG_MenuEntry *)menu->Entries.First;
menuEntry;
menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
{
if( menuEntry->SubMenu && menuEntry->IsActive )
{
/*
* OK, have the sub-menu checked, too. If it returns GL_TRUE, it
* will mean that it caught the mouse cursor and we do not need
* to regenerate the activity list, and so our parents do...
*/
GLboolean return_status;
menuEntry->SubMenu->Window->State.MouseX =
menu->Window->State.MouseX + menu->X - menuEntry->SubMenu->X;
menuEntry->SubMenu->Window->State.MouseY =
menu->Window->State.MouseY + menu->Y - menuEntry->SubMenu->Y;
return_status = fghCheckMenuStatus( menuEntry->SubMenu );
if ( return_status )
return GL_TRUE;
}
}
/* That much about our sub menus, let's get to checking the current menu: */
x = menu->Window->State.MouseX;
y = menu->Window->State.MouseY;
/* Check if the mouse cursor is contained within the current menu box */
if( ( x >= FREEGLUT_MENU_BORDER ) &&
( x < menu->Width - FREEGLUT_MENU_BORDER ) &&
( y >= FREEGLUT_MENU_BORDER ) &&
( y < menu->Height - FREEGLUT_MENU_BORDER ) )
{
int menuID = ( y - FREEGLUT_MENU_BORDER ) / FREEGLUT_MENU_HEIGHT;
/* The mouse cursor is somewhere over our box, check it out. */
menuEntry = fghFindMenuEntry( menu, menuID + 1 );
FREEGLUT_INTERNAL_ERROR_EXIT( menuEntry, "Cannot find menu entry",
"fghCheckMenuStatus" );
menuEntry->IsActive = GL_TRUE;
menuEntry->Ordinal = menuID;
/*
* If this is not the same as the last active menu entry, deactivate
* the previous entry. Specifically, if the previous active entry
* was a submenu then deactivate it.
*/
if( menu->ActiveEntry && ( menuEntry != menu->ActiveEntry ) )
if( menu->ActiveEntry->SubMenu )
fghDeactivateSubMenu( menu->ActiveEntry );
if( menuEntry != menu->ActiveEntry )
{
menu->Window->State.Redisplay = GL_TRUE;
if( menu->ActiveEntry )
menu->ActiveEntry->IsActive = GL_FALSE;
}
menu->ActiveEntry = menuEntry;
menu->IsActive = GL_TRUE; /* XXX Do we need this? */
/*
* OKi, we have marked that entry as active, but it would be also
* nice to have its contents updated, in case it's a sub menu.
* Also, ignore the return value of the check function:
*/
if( menuEntry->SubMenu )
{
if ( ! menuEntry->SubMenu->IsActive )
{
int max_x, max_y;
SFG_Window *current_window = fgStructure.CurrentWindow;
/* Set up the initial menu position now... */
menuEntry->SubMenu->IsActive = GL_TRUE;
/* Set up the initial submenu position now: */
fghGetVMaxExtent(menu->ParentWindow, &max_x, &max_y);
menuEntry->SubMenu->X = menu->X + menu->Width;
menuEntry->SubMenu->Y = menu->Y +
menuEntry->Ordinal * FREEGLUT_MENU_HEIGHT;
if( menuEntry->SubMenu->X + menuEntry->SubMenu->Width > max_x )
menuEntry->SubMenu->X = menu->X - menuEntry->SubMenu->Width;
if( menuEntry->SubMenu->Y + menuEntry->SubMenu->Height > max_y )
{
menuEntry->SubMenu->Y -= ( menuEntry->SubMenu->Height -
FREEGLUT_MENU_HEIGHT -
2 * FREEGLUT_MENU_BORDER );
if( menuEntry->SubMenu->Y < 0 )
menuEntry->SubMenu->Y = 0;
}
fgSetWindow( menuEntry->SubMenu->Window );
glutPositionWindow( menuEntry->SubMenu->X,
menuEntry->SubMenu->Y );
glutReshapeWindow( menuEntry->SubMenu->Width,
menuEntry->SubMenu->Height );
glutPopWindow( );
glutShowWindow( );
menuEntry->SubMenu->Window->ActiveMenu = menuEntry->SubMenu;
fgSetWindow( current_window );
menuEntry->SubMenu->Window->State.MouseX =
x + menu->X - menuEntry->SubMenu->X;
menuEntry->SubMenu->Window->State.MouseY =
y + menu->Y - menuEntry->SubMenu->Y;
fghCheckMenuStatus( menuEntry->SubMenu );
}
/* Activate it because its parent entry is active */
menuEntry->SubMenu->IsActive = GL_TRUE; /* XXX Do we need this? */
}
/* Report back that we have caught the menu cursor */
return GL_TRUE;
}
/* Looks like the menu cursor is somewhere else... */
if( menu->ActiveEntry && menu->ActiveEntry->IsActive &&
( !menu->ActiveEntry->SubMenu ||
!menu->ActiveEntry->SubMenu->IsActive ) )
{
menu->Window->State.Redisplay = GL_TRUE;
menu->ActiveEntry->IsActive = GL_FALSE;
menu->ActiveEntry = NULL;
}
return GL_FALSE;
}
void fgPlatformProcessSingleEvent ( void )
{
SFG_Window* window;
XEvent event;
/* This code was repeated constantly, so here it goes into a definition: */
#define GETWINDOW(a) \
window = fgWindowByHandle( event.a.window ); \
if( window == NULL ) \
break;
#define GETMOUSE(a) \
window->State.MouseX = event.a.x; \
window->State.MouseY = event.a.y;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMainLoopEvent" );
while( XPending( fgDisplay.pDisplay.Display ) )
{
XNextEvent( fgDisplay.pDisplay.Display, &event );
#if _DEBUG
fghPrintEvent( &event );
#endif
switch( event.type )
{
case ClientMessage:
if (fgStructure.CurrentWindow)
if(fgIsSpaceballXEvent(&event)) {
fgSpaceballHandleXEvent(&event);
break;
}
/* Destroy the window when the WM_DELETE_WINDOW message arrives */
if( (Atom) event.xclient.data.l[ 0 ] == fgDisplay.pDisplay.DeleteWindow )
{
GETWINDOW( xclient );
fgDestroyWindow ( window );
if( fgState.ActionOnWindowClose == GLUT_ACTION_EXIT )
{
fgDeinitialize( );
exit( 0 );
}
else if( fgState.ActionOnWindowClose == GLUT_ACTION_GLUTMAINLOOP_RETURNS )
fgState.ExecState = GLUT_EXEC_STATE_STOP;
return;
}
break;
/*
* CreateNotify causes a configure-event so that sub-windows are
* handled compatibly with GLUT. Otherwise, your sub-windows
* (in freeglut only) will not get an initial reshape event,
* which can break things.
*
* GLUT presumably does this because it generally tries to treat
* sub-windows the same as windows.
*/
case CreateNotify:
case ConfigureNotify:
{
int width, height, x, y;
if( event.type == CreateNotify ) {
GETWINDOW( xcreatewindow );
width = event.xcreatewindow.width;
height = event.xcreatewindow.height;
x = event.xcreatewindow.x;
y = event.xcreatewindow.y;
} else {
GETWINDOW( xconfigure );
width = event.xconfigure.width;
height = event.xconfigure.height;
x = event.xconfigure.x;
y = event.xconfigure.y;
}
/* Update state and call callback, if there was a change */
fghOnPositionNotify(window, x, y, GL_FALSE);
/* Update state and call callback, if there was a change */
fghOnReshapeNotify(window, width, height, GL_FALSE);
}
break;
case DestroyNotify:
/*
* This is sent to confirm the XDestroyWindow call.
*
* XXX WHY is this commented out? Should we re-enable it?
*/
/* fgAddToWindowDestroyList ( window ); */
break;
case Expose:
/*
* We are too dumb to process partial exposes...
*
* XXX Well, we could do it. However, it seems to only
* XXX be potentially useful for single-buffered (since
* XXX double-buffered does not respect viewport when we
* XXX do a buffer-swap).
*
*/
if( event.xexpose.count == 0 )
{
GETWINDOW( xexpose );
window->State.WorkMask |= GLUT_DISPLAY_WORK;
}
break;
case MapNotify:
break;
case UnmapNotify:
/* We get this when iconifying a window. */
GETWINDOW( xunmap );
INVOKE_WCB( *window, WindowStatus, ( GLUT_HIDDEN ) );
window->State.Visible = GL_FALSE;
break;
case MappingNotify:
/*
* Have the client's keyboard knowledge updated (xlib.ps,
* page 206, says that's a good thing to do)
*/
XRefreshKeyboardMapping( (XMappingEvent *) &event );
break;
case VisibilityNotify:
{
/*
* Sending this event, the X server can notify us that the window
* has just acquired one of the three possible visibility states:
* VisibilityUnobscured, VisibilityPartiallyObscured or
* VisibilityFullyObscured. Note that we DO NOT receive a
* VisibilityNotify event when iconifying a window, we only get an
* UnmapNotify then.
*/
GETWINDOW( xvisibility );
switch( event.xvisibility.state )
{
case VisibilityUnobscured:
INVOKE_WCB( *window, WindowStatus, ( GLUT_FULLY_RETAINED ) );
window->State.Visible = GL_TRUE;
break;
case VisibilityPartiallyObscured:
INVOKE_WCB( *window, WindowStatus,
( GLUT_PARTIALLY_RETAINED ) );
window->State.Visible = GL_TRUE;
break;
case VisibilityFullyObscured:
INVOKE_WCB( *window, WindowStatus, ( GLUT_FULLY_COVERED ) );
window->State.Visible = GL_FALSE;
break;
default:
fgWarning( "Unknown X visibility state: %d",
event.xvisibility.state );
break;
}
}
break;
case EnterNotify:
case LeaveNotify:
GETWINDOW( xcrossing );
GETMOUSE( xcrossing );
if( ( event.type == LeaveNotify ) && window->IsMenu &&
window->ActiveMenu && window->ActiveMenu->IsActive )
fgUpdateMenuHighlight( window->ActiveMenu );
INVOKE_WCB( *window, Entry, ( ( EnterNotify == event.type ) ?
GLUT_ENTERED :
GLUT_LEFT ) );
break;
case MotionNotify:
{
/* if GLUT_SKIP_STALE_MOTION_EVENTS is true, then discard all but
* the last motion event from the queue
*/
if(fgState.SkipStaleMotion) {
while(XCheckIfEvent(fgDisplay.pDisplay.Display, &event, match_motion, 0));
}
GETWINDOW( xmotion );
GETMOUSE( xmotion );
if( window->ActiveMenu )
{
if( window == window->ActiveMenu->ParentWindow )
{
window->ActiveMenu->Window->State.MouseX =
event.xmotion.x_root - window->ActiveMenu->X;
window->ActiveMenu->Window->State.MouseY =
event.xmotion.y_root - window->ActiveMenu->Y;
}
fgUpdateMenuHighlight( window->ActiveMenu );
break;
}
/*
* XXX For more than 5 buttons, just check {event.xmotion.state},
* XXX rather than a host of bit-masks? Or maybe we need to
* XXX track ButtonPress/ButtonRelease events in our own
* XXX bit-mask?
*/
fgState.Modifiers = fgPlatformGetModifiers( event.xmotion.state );
if ( event.xmotion.state & ( Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask ) ) {
INVOKE_WCB( *window, Motion, ( event.xmotion.x,
event.xmotion.y ) );
} else {
INVOKE_WCB( *window, Passive, ( event.xmotion.x,
event.xmotion.y ) );
}
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case ButtonRelease:
case ButtonPress:
{
GLboolean pressed = GL_TRUE;
int button;
if( event.type == ButtonRelease )
pressed = GL_FALSE ;
/*
* A mouse button has been pressed or released. Traditionally,
* break if the window was found within the freeglut structures.
*/
GETWINDOW( xbutton );
GETMOUSE( xbutton );
/*
* An X button (at least in XFree86) is numbered from 1.
* A GLUT button is numbered from 0.
* Old GLUT passed through buttons other than just the first
* three, though it only gave symbolic names and official
* support to the first three.
*/
button = event.xbutton.button - 1;
/*
* Do not execute the application's mouse callback if a menu
* is hooked to this button. In that case an appropriate
* private call should be generated.
*/
if( fgCheckActiveMenu( window, button, pressed,
event.xbutton.x, event.xbutton.y ) )
break;
/*
* Check if there is a mouse or mouse wheel callback hooked to the
* window
*/
if( ! FETCH_WCB( *window, Mouse ) &&
! FETCH_WCB( *window, MouseWheel ) )
break;
fgState.Modifiers = fgPlatformGetModifiers( event.xbutton.state );
/* Finally execute the mouse or mouse wheel callback */
if( ( button < glutDeviceGet ( GLUT_NUM_MOUSE_BUTTONS ) ) || ( ! FETCH_WCB( *window, MouseWheel ) ) )
INVOKE_WCB( *window, Mouse, ( button,
pressed ? GLUT_DOWN : GLUT_UP,
event.xbutton.x,
event.xbutton.y )
);
else
{
/*
* Map 4 and 5 to wheel zero; EVEN to +1, ODD to -1
* " 6 and 7 " " one; ...
*
* XXX This *should* be behind some variables/macros,
* XXX since the order and numbering isn't certain
* XXX See XFree86 configuration docs (even back in the
* XXX 3.x days, and especially with 4.x).
*
* XXX Note that {button} has already been decremented
* XXX in mapping from X button numbering to GLUT.
*
* XXX Should add support for partial wheel turns as Windows does -- 5/27/11
*/
int wheel_number = (button - glutDeviceGet ( GLUT_NUM_MOUSE_BUTTONS )) / 2;
int direction = -1;
if( button % 2 )
direction = 1;
if( pressed )
INVOKE_WCB( *window, MouseWheel, ( wheel_number,
direction,
event.xbutton.x,
event.xbutton.y )
);
}
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case KeyRelease:
case KeyPress:
{
FGCBKeyboard keyboard_cb;
FGCBSpecial special_cb;
GETWINDOW( xkey );
GETMOUSE( xkey );
/* Detect auto repeated keys, if configured globally or per-window */
if ( fgState.KeyRepeat==GLUT_KEY_REPEAT_OFF || window->State.IgnoreKeyRepeat==GL_TRUE )
{
if (event.type==KeyRelease)
{
/*
* Look at X11 keystate to detect repeat mode.
* While X11 says the key is actually held down, we'll ignore KeyRelease/KeyPress pairs.
*/
char keys[32];
XQueryKeymap( fgDisplay.pDisplay.Display, keys ); /* Look at X11 keystate to detect repeat mode */
if ( event.xkey.keycode<256 ) /* XQueryKeymap is limited to 256 keycodes */
{
if ( keys[event.xkey.keycode>>3] & (1<<(event.xkey.keycode%8)) )
window->State.pWState.KeyRepeating = GL_TRUE;
else
window->State.pWState.KeyRepeating = GL_FALSE;
}
}
}
else
window->State.pWState.KeyRepeating = GL_FALSE;
/* Cease processing this event if it is auto repeated */
if (window->State.pWState.KeyRepeating)
{
if (event.type == KeyPress) window->State.pWState.KeyRepeating = GL_FALSE;
break;
}
if( event.type == KeyPress )
{
keyboard_cb = (FGCBKeyboard)( FETCH_WCB( *window, Keyboard ));
special_cb = (FGCBSpecial) ( FETCH_WCB( *window, Special ));
}
else
{
keyboard_cb = (FGCBKeyboard)( FETCH_WCB( *window, KeyboardUp ));
special_cb = (FGCBSpecial) ( FETCH_WCB( *window, SpecialUp ));
}
/* Is there a keyboard/special callback hooked for this window? */
if( keyboard_cb || special_cb )
{
XComposeStatus composeStatus;
char asciiCode[ 32 ];
KeySym keySym;
int len;
/* Check for the ASCII/KeySym codes associated with the event: */
len = XLookupString( &event.xkey, asciiCode, sizeof(asciiCode),
&keySym, &composeStatus
);
/* GLUT API tells us to have two separate callbacks... */
if( len > 0 )
{
/* ...one for the ASCII translateable keypresses... */
if( keyboard_cb )
{
fgSetWindow( window );
fgState.Modifiers = fgPlatformGetModifiers( event.xkey.state );
keyboard_cb( asciiCode[ 0 ],
event.xkey.x, event.xkey.y
);
fgState.Modifiers = INVALID_MODIFIERS;
}
}
else
{
int special = -1;
/*
* ...and one for all the others, which need to be
* translated to GLUT_KEY_Xs...
*/
switch( keySym )
{
case XK_F1: special = GLUT_KEY_F1; break;
case XK_F2: special = GLUT_KEY_F2; break;
case XK_F3: special = GLUT_KEY_F3; break;
case XK_F4: special = GLUT_KEY_F4; break;
case XK_F5: special = GLUT_KEY_F5; break;
case XK_F6: special = GLUT_KEY_F6; break;
case XK_F7: special = GLUT_KEY_F7; break;
case XK_F8: special = GLUT_KEY_F8; break;
case XK_F9: special = GLUT_KEY_F9; break;
case XK_F10: special = GLUT_KEY_F10; break;
case XK_F11: special = GLUT_KEY_F11; break;
case XK_F12: special = GLUT_KEY_F12; break;
case XK_KP_Left:
case XK_Left: special = GLUT_KEY_LEFT; break;
case XK_KP_Right:
case XK_Right: special = GLUT_KEY_RIGHT; break;
case XK_KP_Up:
case XK_Up: special = GLUT_KEY_UP; break;
case XK_KP_Down:
case XK_Down: special = GLUT_KEY_DOWN; break;
case XK_KP_Prior:
case XK_Prior: special = GLUT_KEY_PAGE_UP; break;
case XK_KP_Next:
case XK_Next: special = GLUT_KEY_PAGE_DOWN; break;
case XK_KP_Home:
case XK_Home: special = GLUT_KEY_HOME; break;
case XK_KP_End:
case XK_End: special = GLUT_KEY_END; break;
case XK_KP_Insert:
case XK_Insert: special = GLUT_KEY_INSERT; break;
case XK_Num_Lock : special = GLUT_KEY_NUM_LOCK; break;
case XK_KP_Begin : special = GLUT_KEY_BEGIN; break;
case XK_KP_Delete: special = GLUT_KEY_DELETE; break;
case XK_Shift_L: special = GLUT_KEY_SHIFT_L; break;
case XK_Shift_R: special = GLUT_KEY_SHIFT_R; break;
case XK_Control_L: special = GLUT_KEY_CTRL_L; break;
case XK_Control_R: special = GLUT_KEY_CTRL_R; break;
case XK_Alt_L: special = GLUT_KEY_ALT_L; break;
case XK_Alt_R: special = GLUT_KEY_ALT_R; break;
}
/*
* Execute the callback (if one has been specified),
* given that the special code seems to be valid...
*/
if( special_cb && (special != -1) )
{
fgSetWindow( window );
fgState.Modifiers = fgPlatformGetModifiers( event.xkey.state );
special_cb( special, event.xkey.x, event.xkey.y );
fgState.Modifiers = INVALID_MODIFIERS;
}
}
}
}
/*
* Activates a menu pointed by the function argument
*/
static void fghActivateMenu( SFG_Window* window, int button )
{
int max_x, max_y;
SFG_XYUse mouse_pos;
/* We'll be referencing this menu a lot, so remember its address: */
SFG_Menu* menu = window->Menu[ button ];
SFG_Window* current_window = fgStructure.CurrentWindow;
/* If the menu is already active in another window, deactivate it (and any submenus) there */
if ( menu->ParentWindow )
fgDeactivateMenu(menu->ParentWindow);
/* Mark the menu as active, so that it gets displayed: */
window->ActiveMenu = menu;
menu->IsActive = GL_TRUE;
fghSetMenuParentWindow ( window, menu );
fgState.ActiveMenus++;
/* Set up the initial menu position now: */
fghGetVMaxExtent(menu->ParentWindow, &max_x, &max_y);
fgSetWindow( window );
/* get mouse position on screen (window->State.MouseX and window->State.MouseY
* are relative to client area origin), and not easy to correct given that
* glutGet( GLUT_WINDOW_X ) and glutGet( GLUT_WINDOW_Y ) return relative to parent
* origin when looking at a child window
* for parent windows: window->State.MouseX + glutGet( GLUT_WINDOW_X ) == mouse_pos.X
*/
fghGetCursorPos(&mouse_pos);
menu->X = mouse_pos.X;
menu->Y = mouse_pos.Y;
/* Make sure the whole menu is on the screen */
if( menu->X + menu->Width > max_x )
menu->X -=menu->Width;
if( menu->Y + menu->Height > max_y )
{
menu->Y -=menu->Height;
if( menu->Y < 0 )
menu->Y = 0;
}
/* Set position of mouse relative to top-left menu in menu's window state (could as well set 0 at creation time...) */
menu->Window->State.MouseX = mouse_pos.X - menu->X;
menu->Window->State.MouseY = mouse_pos.Y - menu->Y;
/* Menu status callback */
if (fgState.MenuStateCallback || fgState.MenuStatusCallback)
{
fgStructure.CurrentMenu = menu;
fgStructure.CurrentWindow = window;
if (fgState.MenuStateCallback)
fgState.MenuStateCallback(GLUT_MENU_IN_USE);
if (fgState.MenuStatusCallback)
/* window->State.MouseX and window->State.MouseY are relative to client area origin, as needed */
fgState.MenuStatusCallback(GLUT_MENU_IN_USE, window->State.MouseX, window->State.MouseY);
}
fgSetWindow( menu->Window );
glutPositionWindow( menu->X, menu->Y );
glutReshapeWindow( menu->Width, menu->Height );
glutPopWindow( );
glutShowWindow( );
menu->Window->ActiveMenu = menu;
fghCheckMenuStatus( menu );
fgSetWindow( current_window );
}
/*
* Check whether an active menu absorbs a mouse click
*/
GLboolean fgCheckActiveMenu ( SFG_Window *window, int button, GLboolean pressed,
int mouse_x, int mouse_y )
{
/*
* Near as I can tell, this is the menu behaviour:
* - Down-click the menu button, menu not active: activate
* the menu with its upper left-hand corner at the mouse
* location.
* - Down-click any button outside the menu, menu active:
* deactivate the menu
* - Down-click any button inside the menu, menu active:
* select the menu entry and deactivate the menu
* - Up-click the menu button, menu not active: nothing happens
* - Up-click the menu button outside the menu, menu active:
* nothing happens
* - Up-click the menu button inside the menu, menu active:
* select the menu entry and deactivate the menu
* Since menus can have submenus, we need to check this recursively.
*/
if( window->ActiveMenu )
{
if( window == window->ActiveMenu->ParentWindow )
{
window->ActiveMenu->Window->State.MouseX =
mouse_x - window->ActiveMenu->X;
window->ActiveMenu->Window->State.MouseY =
mouse_y - window->ActiveMenu->Y;
}
/* In the menu, invoke the callback and deactivate the menu */
if( fghCheckMenuStatus( window->ActiveMenu ) )
{
/*
* Save the current window and menu and set the current
* window to the window whose menu this is
*/
SFG_Window *save_window = fgStructure.CurrentWindow;
SFG_Menu *save_menu = fgStructure.CurrentMenu;
SFG_Window *parent_window = window->ActiveMenu->ParentWindow;
fgSetWindow( parent_window );
fgStructure.CurrentMenu = window->ActiveMenu;
/* Execute the menu callback */
fghExecuteMenuCallback( window->ActiveMenu );
fgDeactivateMenu( parent_window );
/* Restore the current window and menu */
fgSetWindow( save_window );
fgStructure.CurrentMenu = save_menu;
}
else if( pressed )
/*
* Outside the menu, deactivate if it's a downclick
*
* A downclick outside of the interior of our freeglut windows
* is dealt with in the WM_KILLFOCUS handler of fgPlatformWindowProc
*/
fgDeactivateMenu( window->ActiveMenu->ParentWindow );
/*
* XXX Why does an active menu require a redisplay at
* XXX this point? If this can come out cleanly, then
* XXX it probably should do so; if not, a comment should
* XXX explain it.
*/
if( ! window->IsMenu )
window->State.Redisplay = GL_TRUE;
return GL_TRUE;
}
/* No active menu, let's check whether we need to activate one. */
if( ( 0 <= button ) &&
( FREEGLUT_MAX_MENUS > button ) &&
( window->Menu[ button ] ) &&
pressed )
{
/* XXX Posting a requisite Redisplay seems bogus. */
window->State.Redisplay = GL_TRUE;
fghActivateMenu( window, button );
return GL_TRUE;
}
return GL_FALSE;
}
/*
* The window procedure for handling Win32 events
*/
LRESULT CALLBACK fgPlatformWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
SFG_Window *window;
LRESULT lRet = 1;
static int setCaptureActive = 0;
FREEGLUT_INTERNAL_ERROR_EXIT_IF_NOT_INITIALISED ( "Event Handler" ) ;
window = fgWindowByHandle( hWnd );
if ( ( window == NULL ) && ( uMsg != WM_CREATE ) )
return DefWindowProc( hWnd, uMsg, wParam, lParam );
/* printf ( "Window %3d message <%04x> %12d %12d\n", window?window->ID:0,
uMsg, wParam, lParam ); */
switch( uMsg )
{
case WM_CREATE:
/* The window structure is passed as the creation structure parameter... */
window = (SFG_Window *) (((LPCREATESTRUCT) lParam)->lpCreateParams);
FREEGLUT_INTERNAL_ERROR_EXIT ( ( window != NULL ), "Cannot create window",
"fgPlatformWindowProc" );
window->Window.Handle = hWnd;
window->Window.pContext.Device = GetDC( hWnd );
if( window->IsMenu )
{
unsigned int current_DisplayMode = fgState.DisplayMode;
fgState.DisplayMode = GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH;
#if !defined(_WIN32_WCE)
fgSetupPixelFormat( window, GL_FALSE, PFD_MAIN_PLANE );
#endif
fgState.DisplayMode = current_DisplayMode;
if( fgStructure.MenuContext )
wglMakeCurrent( window->Window.pContext.Device,
fgStructure.MenuContext->MContext
);
else
{
fgStructure.MenuContext =
(SFG_MenuContext *)malloc( sizeof(SFG_MenuContext) );
fgStructure.MenuContext->MContext =
wglCreateContext( window->Window.pContext.Device );
}
/* window->Window.Context = wglGetCurrentContext (); */
window->Window.Context = wglCreateContext( window->Window.pContext.Device );
}
else
{
#if !defined(_WIN32_WCE)
fgSetupPixelFormat( window, GL_FALSE, PFD_MAIN_PLANE );
#endif
if( ! fgState.UseCurrentContext )
window->Window.Context =
wglCreateContext( window->Window.pContext.Device );
else
{
window->Window.Context = wglGetCurrentContext( );
if( ! window->Window.Context )
window->Window.Context =
wglCreateContext( window->Window.pContext.Device );
}
#if !defined(_WIN32_WCE)
fgNewWGLCreateContext( window );
#endif
}
window->State.NeedToResize = GL_TRUE;
/* if we used CW_USEDEFAULT (thats a negative value) for the size
* of the window, query the window now for the size at which it
* was created.
*/
if( ( window->State.Width < 0 ) || ( window->State.Height < 0 ) )
{
SFG_Window *current_window = fgStructure.CurrentWindow;
fgSetWindow( window );
window->State.Width = glutGet( GLUT_WINDOW_WIDTH );
window->State.Height = glutGet( GLUT_WINDOW_HEIGHT );
fgSetWindow( current_window );
}
ReleaseDC( window->Window.Handle, window->Window.pContext.Device );
#if defined(_WIN32_WCE)
/* Take over button handling */
{
HINSTANCE dxDllLib=LoadLibrary(_T("gx.dll"));
if (dxDllLib)
{
GXGetDefaultKeys_=(GXGETDEFAULTKEYS)GetProcAddress(dxDllLib, _T("?GXGetDefaultKeys@@YA?AUGXKeyList@@H@Z"));
GXOpenInput_=(GXOPENINPUT)GetProcAddress(dxDllLib, _T("?GXOpenInput@@YAHXZ"));
}
if(GXOpenInput_)
(*GXOpenInput_)();
if(GXGetDefaultKeys_)
gxKeyList = (*GXGetDefaultKeys_)(GX_LANDSCAPEKEYS);
}
#endif /* defined(_WIN32_WCE) */
break;
case WM_SIZE:
/* printf("WM_SIZE (ID: %i): wParam: %i, new size: %ix%i \n",window->ID,wParam,LOWORD(lParam),HIWORD(lParam)); */
/* Update visibility state of the window */
if (wParam==SIZE_MINIMIZED)
fghUpdateWindowStatus(window,GL_FALSE);
else if (wParam==SIZE_RESTORED && !window->State.Visible)
fghUpdateWindowStatus(window,GL_TRUE);
/* Check window visible, we don't want to resize when the user or glutIconifyWindow minimized the window */
if( window->State.Visible )
{
/* get old values first to compare to below */
int width = window->State.Width, height=window->State.Height;
#if defined(_WIN32_WCE)
window->State.Width = HIWORD(lParam);
window->State.Height = LOWORD(lParam);
#else
window->State.Width = LOWORD(lParam);
window->State.Height = HIWORD(lParam);
#endif /* defined(_WIN32_WCE) */
if (width!=window->State.Width || height!=window->State.Height)
{
SFG_Window* saved_window = fgStructure.CurrentWindow;
/* size changed, call reshape callback */
INVOKE_WCB( *window, Reshape, ( width, height ) );
glutPostRedisplay( );
if( window->IsMenu )
fgSetWindow( saved_window );
}
}
/* according to docs, should return 0 */
lRet = 0;
break;
case WM_MOVE:
{
SFG_Window* saved_window = fgStructure.CurrentWindow;
RECT windowRect;
/* Check window is minimized, we don't want to call the position callback when the user or glutIconifyWindow minimized the window */
if (!IsIconic(window->Window.Handle))
{
/* Get top-left of non-client area of window, matching coordinates of
* glutInitPosition and glutPositionWindow, but not those of
* glutGet(GLUT_WINDOW_X) and glutGet(GLUT_WINDOW_Y), which return
* top-left of client area.
*/
GetWindowRect( window->Window.Handle, &windowRect );
if (window->Parent)
{
/* For child window, we should return relative to upper-left
* of parent's client area.
*/
POINT topleft = {windowRect.left,windowRect.top};
ScreenToClient(window->Parent->Window.Handle,&topleft);
windowRect.left = topleft.x;
windowRect.top = topleft.y;
}
INVOKE_WCB( *window, Position, ( windowRect.left, windowRect.top ) );
fgSetWindow(saved_window);
}
}
/* according to docs, should return 0 */
lRet = 0;
break;
case WM_SETFOCUS:
/*printf("WM_SETFOCUS: %p\n", window );*/
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
SetActiveWindow( window->Window.Handle );
UpdateWindow ( hWnd );
break;
case WM_KILLFOCUS:
/*printf("WM_KILLFOCUS: %p\n", window ); */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
/* Check if there are any open menus that need to be closed */
fgPlatformCheckMenuDeactivate();
break;
#if 0
case WM_ACTIVATE:
//printf("WM_ACTIVATE: %x (ID: %i) %d %d\n",lParam, window->ID, HIWORD(wParam), LOWORD(wParam));
if (LOWORD(wParam) != WA_INACTIVE)
{
/* printf("WM_ACTIVATE: fgSetCursor( %p, %d)\n", window,
window->State.Cursor ); */
fgSetCursor( window, window->State.Cursor );
}
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
#endif
case WM_SETCURSOR:
/* printf ( "Cursor event %x %x %x %x\n", window, window->State.Cursor, lParam, wParam ) ; */
if( LOWORD( lParam ) == HTCLIENT )
{
if (!window->State.pWState.MouseTracking)
{
TRACKMOUSEEVENT tme;
/* Cursor just entered window, set cursor look */
fgSetCursor ( window, window->State.Cursor ) ;
/* If an EntryFunc callback is specified by the user, also
* invoke that callback and start mouse tracking so that
* we get a WM_MOUSELEAVE message
*/
if (FETCH_WCB( *window, Entry ))
{
SFG_Window* saved_window = fgStructure.CurrentWindow;
INVOKE_WCB( *window, Entry, ( GLUT_ENTERED ) );
fgSetWindow(saved_window);
tme.cbSize = sizeof(TRACKMOUSEEVENT);
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = window->Window.Handle;
TrackMouseEvent(&tme);
window->State.pWState.MouseTracking = GL_TRUE;
}
}
}
else
/* Only pass non-client WM_SETCURSOR to DefWindowProc, or we get WM_SETCURSOR on parents of children as well */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
case WM_MOUSELEAVE:
{
/* NB: This message is only received when a EntryFunc callback
* is specified by the user, as that is the only condition under
* which mouse tracking is setup in WM_SETCURSOR handler above
*/
SFG_Window* saved_window = fgStructure.CurrentWindow;
INVOKE_WCB( *window, Entry, ( GLUT_LEFT ) );
fgSetWindow(saved_window);
window->State.pWState.MouseTracking = GL_FALSE;
lRet = 0; /* As per docs, must return zero */
}
break;
case WM_SHOWWINDOW:
/* printf("WM_SHOWWINDOW, shown? %i, source: %i\n",wParam,lParam); */
if (wParam)
{
fghUpdateWindowStatus(window, GL_TRUE);
window->State.Redisplay = GL_TRUE;
}
else
{
fghUpdateWindowStatus(window, GL_FALSE);
window->State.Redisplay = GL_FALSE;
}
break;
case WM_PAINT:
{
RECT rect;
if (GetUpdateRect(hWnd,&rect,FALSE))
{
/* As per docs, upon receiving WM_PAINT, first check if the update region is not empty before you call BeginPaint */
PAINTSTRUCT ps;
/* Turn on the visibility in case it was turned off somehow */
window->State.Visible = GL_TRUE;
InvalidateRect( hWnd, NULL, GL_FALSE );
BeginPaint( hWnd, &ps );
fghRedrawWindow( window );
EndPaint( hWnd, &ps );
}
lRet = 0; /* As per docs, should return 0 */
}
break;
case WM_CLOSE:
fgDestroyWindow ( window );
if ( fgState.ActionOnWindowClose != GLUT_ACTION_CONTINUE_EXECUTION )
PostQuitMessage(0);
break;
case WM_DESTROY:
/*
* The window already got destroyed, so don't bother with it.
*/
return 0;
case WM_MOUSEMOVE:
{
/* Per docs, use LOWORD/HIWORD for WinCE and GET_X_LPARAM/GET_Y_LPARAM for desktop windows */
#if defined(_WIN32_WCE)
window->State.MouseX = 320-HIWORD( lParam ); /* XXX: Docs say x should be loword and y hiword? */
window->State.MouseY = LOWORD( lParam );
#else
window->State.MouseX = GET_X_LPARAM( lParam );
window->State.MouseY = GET_Y_LPARAM( lParam );
#endif /* defined(_WIN32_WCE) */
/* Restrict to [-32768, 32767] to match X11 behaviour */
/* See comment in "freeglut_developer" mailing list 10/4/04 */
if ( window->State.MouseX > 32767 ) window->State.MouseX -= 65536;
if ( window->State.MouseY > 32767 ) window->State.MouseY -= 65536;
if ( window->ActiveMenu )
{
fgUpdateMenuHighlight( window->ActiveMenu );
break;
}
fgState.Modifiers = fgPlatformGetModifiers( );
if( ( wParam & MK_LBUTTON ) ||
( wParam & MK_MBUTTON ) ||
( wParam & MK_RBUTTON ) )
INVOKE_WCB( *window, Motion, ( window->State.MouseX,
window->State.MouseY ) );
else
INVOKE_WCB( *window, Passive, ( window->State.MouseX,
window->State.MouseY ) );
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
{
GLboolean pressed = GL_TRUE;
int button;
/* Per docs, use LOWORD/HIWORD for WinCE and GET_X_LPARAM/GET_Y_LPARAM for desktop windows */
#if defined(_WIN32_WCE)
window->State.MouseX = 320-HIWORD( lParam ); /* XXX: Docs say x should be loword and y hiword? */
window->State.MouseY = LOWORD( lParam );
#else
window->State.MouseX = GET_X_LPARAM( lParam );
window->State.MouseY = GET_Y_LPARAM( lParam );
#endif /* defined(_WIN32_WCE) */
/* Restrict to [-32768, 32767] to match X11 behaviour */
/* See comment in "freeglut_developer" mailing list 10/4/04 */
if ( window->State.MouseX > 32767 ) window->State.MouseX -= 65536;
if ( window->State.MouseY > 32767 ) window->State.MouseY -= 65536;
switch( uMsg )
{
case WM_LBUTTONDOWN:
pressed = GL_TRUE;
button = GLUT_LEFT_BUTTON;
break;
case WM_MBUTTONDOWN:
pressed = GL_TRUE;
button = GLUT_MIDDLE_BUTTON;
break;
case WM_RBUTTONDOWN:
pressed = GL_TRUE;
button = GLUT_RIGHT_BUTTON;
break;
case WM_LBUTTONUP:
pressed = GL_FALSE;
button = GLUT_LEFT_BUTTON;
break;
case WM_MBUTTONUP:
pressed = GL_FALSE;
button = GLUT_MIDDLE_BUTTON;
break;
case WM_RBUTTONUP:
pressed = GL_FALSE;
button = GLUT_RIGHT_BUTTON;
break;
default:
pressed = GL_FALSE;
button = -1;
break;
}
#if !defined(_WIN32_WCE)
if( GetSystemMetrics( SM_SWAPBUTTON ) )
{
if( button == GLUT_LEFT_BUTTON )
button = GLUT_RIGHT_BUTTON;
else
if( button == GLUT_RIGHT_BUTTON )
button = GLUT_LEFT_BUTTON;
}
#endif /* !defined(_WIN32_WCE) */
if( button == -1 )
return DefWindowProc( hWnd, uMsg, lParam, wParam );
/*
* Do not execute the application's mouse callback if a menu
* is hooked to this button. In that case an appropriate
* private call should be generated.
*/
if( fgCheckActiveMenu( window, button, pressed,
window->State.MouseX, window->State.MouseY ) )
break;
/* Set capture so that the window captures all the mouse messages
*
* The mouse is not released from the window until all buttons have
* been released, even if the user presses a button in another window.
* This is consistent with the behavior on X11.
*/
if ( pressed == GL_TRUE )
{
if (!setCaptureActive)
SetCapture ( window->Window.Handle ) ;
setCaptureActive = 1; /* Set to false in WM_CAPTURECHANGED handler */
}
else if (!GetAsyncKeyState(VK_LBUTTON) && !GetAsyncKeyState(VK_MBUTTON) && !GetAsyncKeyState(VK_RBUTTON))
/* Make sure all mouse buttons are released before releasing capture */
ReleaseCapture () ;
if( ! FETCH_WCB( *window, Mouse ) )
break;
fgSetWindow( window );
fgState.Modifiers = fgPlatformGetModifiers( );
INVOKE_WCB(
*window, Mouse,
( button,
pressed ? GLUT_DOWN : GLUT_UP,
window->State.MouseX,
window->State.MouseY
)
);
fgState.Modifiers = INVALID_MODIFIERS;
/* As per docs, should return zero */
lRet = 0;
}
break;
case WM_MOUSEWHEEL:
{
int wheel_number = 0; /* Only one scroll wheel on windows */
#if defined(_WIN32_WCE)
int modkeys = LOWORD(wParam);
short ticks = (short)HIWORD(wParam);
/* commented out as should not be needed here, mouse motion is processed in WM_MOUSEMOVE first:
xPos = LOWORD(lParam); -- straight from docs, not consistent with mouse nutton and mouse motion above (which i think is wrong)
yPos = HIWORD(lParam);
*/
#else
/* int modkeys = GET_KEYSTATE_WPARAM( wParam ); */
short ticks = GET_WHEEL_DELTA_WPARAM( wParam );
/* commented out as should not be needed here, mouse motion is processed in WM_MOUSEMOVE first:
window->State.MouseX = GET_X_LPARAM( lParam );
window->State.MouseY = GET_Y_LPARAM( lParam );
*/
#endif /* defined(_WIN32_WCE) */
window = fghWindowUnderCursor(window);
fgState.MouseWheelTicks += ticks;
if ( abs ( fgState.MouseWheelTicks ) >= WHEEL_DELTA )
{
int direction = ( fgState.MouseWheelTicks > 0 ) ? 1 : -1;
if( ! FETCH_WCB( *window, MouseWheel ) &&
! FETCH_WCB( *window, Mouse ) )
break;
fgSetWindow( window );
fgState.Modifiers = fgPlatformGetModifiers( );
while( abs ( fgState.MouseWheelTicks ) >= WHEEL_DELTA )
{
if( FETCH_WCB( *window, MouseWheel ) )
INVOKE_WCB( *window, MouseWheel,
( wheel_number,
direction,
window->State.MouseX,
window->State.MouseY
)
);
else /* No mouse wheel, call the mouse button callback twice */
{
/*
* Map wheel zero to button 3 and 4; +1 to 3, -1 to 4
* " " one +1 to 5, -1 to 6, ...
*
* XXX The below assumes that you have no more than 3 mouse
* XXX buttons. Sorry.
*/
int button = wheel_number * 2 + 3;
if( direction < 0 )
++button;
INVOKE_WCB( *window, Mouse,
( button, GLUT_DOWN,
window->State.MouseX, window->State.MouseY )
);
INVOKE_WCB( *window, Mouse,
( button, GLUT_UP,
window->State.MouseX, window->State.MouseY )
);
}
fgState.MouseWheelTicks -= WHEEL_DELTA * direction;
}
fgState.Modifiers = INVALID_MODIFIERS;
}
/* Per docs, should return zero */
lRet = 0;
}
break ;
case WM_SYSKEYDOWN:
case WM_KEYDOWN:
{
window = fghWindowUnderCursor(window);
lRet = fghWindowProcKeyPress(window,uMsg,GL_TRUE,wParam,lParam);
}
break;
case WM_SYSKEYUP:
case WM_KEYUP:
{
window = fghWindowUnderCursor(window);
lRet = fghWindowProcKeyPress(window,uMsg,GL_FALSE,wParam,lParam);
}
break;
case WM_SYSCHAR:
case WM_CHAR:
{
window = fghWindowUnderCursor(window);
if( (fgState.KeyRepeat==GLUT_KEY_REPEAT_OFF || window->State.IgnoreKeyRepeat==GL_TRUE) && (HIWORD(lParam) & KF_REPEAT) )
break;
fgState.Modifiers = fgPlatformGetModifiers( );
INVOKE_WCB( *window, Keyboard,
( (char)wParam,
window->State.MouseX, window->State.MouseY )
);
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case WM_CAPTURECHANGED:
if (!lParam || !fgWindowByHandle((HWND)lParam))
/* Capture released or capture taken by non-FreeGLUT window */
setCaptureActive = 0;
/* Docs advise a redraw */
InvalidateRect( hWnd, NULL, GL_FALSE );
UpdateWindow(hWnd);
lRet = 0; /* Per docs, should return zero */
break;
#if !defined(_WIN32_WCE)
case WM_SYNCPAINT: /* 0x0088 */
/* Another window has moved, need to update this one */
window->State.Redisplay = GL_TRUE;
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
/* Help screen says this message must be passed to "DefWindowProc" */
break;
case WM_SYSCOMMAND : /* 0x0112 */
{
/*
* We have received a system command message. Try to act on it.
* The commands are passed in through the "wParam" parameter:
* The least significant digit seems to be which edge of the window
* is being used for a resize event:
* 4 3 5
* 1 2
* 7 6 8
* Congratulations and thanks to Richard Rauch for figuring this out..
*/
switch ( wParam & 0xfff0 )
{
case SC_SIZE :
break ;
case SC_MOVE :
break ;
case SC_MINIMIZE :
/* User has clicked on the "-" to minimize the window */
/* Turning off the visibility is handled in WM_SIZE handler */
break ;
case SC_MAXIMIZE :
break ;
case SC_NEXTWINDOW :
break ;
case SC_PREVWINDOW :
break ;
case SC_CLOSE :
/* Followed very closely by a WM_CLOSE message */
break ;
case SC_VSCROLL :
break ;
case SC_HSCROLL :
break ;
case SC_MOUSEMENU :
break ;
case SC_KEYMENU :
break ;
case SC_ARRANGE :
break ;
case SC_RESTORE :
break ;
case SC_TASKLIST :
break ;
case SC_SCREENSAVE :
break ;
case SC_HOTKEY :
break ;
#if(WINVER >= 0x0400)
case SC_DEFAULT :
break ;
case SC_MONITORPOWER :
break ;
case SC_CONTEXTHELP :
break ;
#endif /* WINVER >= 0x0400 */
default:
#if _DEBUG
fgWarning( "Unknown wParam type 0x%x", wParam );
#endif
break;
}
}
#endif /* !defined(_WIN32_WCE) */
/* We need to pass the message on to the operating system as well */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
#ifdef WM_TOUCH
/* handle multi-touch messages */
case WM_TOUCH:
{
unsigned int numInputs = (unsigned int)wParam;
unsigned int i = 0;
TOUCHINPUT* ti = (TOUCHINPUT*)malloc( sizeof(TOUCHINPUT)*numInputs);
if (fghGetTouchInputInfo == (pGetTouchInputInfo)0xDEADBEEF) {
fghGetTouchInputInfo = (pGetTouchInputInfo)GetProcAddress(GetModuleHandle("user32"),"GetTouchInputInfo");
fghCloseTouchInputHandle = (pCloseTouchInputHandle)GetProcAddress(GetModuleHandle("user32"),"CloseTouchInputHandle");
}
if (!fghGetTouchInputInfo) {
free( (void*)ti );
break;
}
if (fghGetTouchInputInfo( (HTOUCHINPUT)lParam, numInputs, ti, sizeof(TOUCHINPUT) )) {
/* Handle each contact point */
for (i = 0; i < numInputs; ++i ) {
POINT tp;
tp.x = TOUCH_COORD_TO_PIXEL(ti[i].x);
tp.y = TOUCH_COORD_TO_PIXEL(ti[i].y);
ScreenToClient( hWnd, &tp );
ti[i].dwID = ti[i].dwID * 2;
if (ti[i].dwFlags & TOUCHEVENTF_DOWN) {
INVOKE_WCB( *window, MultiEntry, ( ti[i].dwID, GLUT_ENTERED ) );
INVOKE_WCB( *window, MultiButton, ( ti[i].dwID, tp.x, tp.y, 0, GLUT_DOWN ) );
} else if (ti[i].dwFlags & TOUCHEVENTF_MOVE) {
INVOKE_WCB( *window, MultiMotion, ( ti[i].dwID, tp.x, tp.y ) );
} else if (ti[i].dwFlags & TOUCHEVENTF_UP) {
INVOKE_WCB( *window, MultiButton, ( ti[i].dwID, tp.x, tp.y, 0, GLUT_UP ) );
INVOKE_WCB( *window, MultiEntry, ( ti[i].dwID, GLUT_LEFT ) );
}
}
}
fghCloseTouchInputHandle((HTOUCHINPUT)lParam);
free( (void*)ti );
lRet = 0; /*DefWindowProc( hWnd, uMsg, wParam, lParam );*/
break;
}
#endif
default:
/* Handle unhandled messages */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
}
return lRet;
}
/*
* Opens a window. Requires a SFG_Window object created and attached
* to the freeglut structure. OpenGL context is created here.
*/
void fgOpenWindow( SFG_Window* window, const char* title,
int x, int y, int w, int h,
GLboolean gameMode, GLboolean isSubWindow )
{
#if TARGET_HOST_UNIX_X11
XSetWindowAttributes winAttr;
XTextProperty textProperty;
XSizeHints sizeHints;
XWMHints wmHints;
unsigned long mask;
unsigned int current_DisplayMode = fgState.DisplayMode ;
/* Save the display mode if we are creating a menu window */
if( window->IsMenu && ( ! fgStructure.MenuContext ) )
fgState.DisplayMode = GLUT_DOUBLE | GLUT_RGB ;
window->Window.VisualInfo = fgChooseVisual( );
if( window->IsMenu && ( ! fgStructure.MenuContext ) )
fgState.DisplayMode = current_DisplayMode ;
if( ! window->Window.VisualInfo )
{
/*
* The "fgChooseVisual" returned a null meaning that the visual
* context is not available.
* Try a couple of variations to see if they will work.
*/
if( !( fgState.DisplayMode & GLUT_DOUBLE ) )
{
fgState.DisplayMode |= GLUT_DOUBLE ;
window->Window.VisualInfo = fgChooseVisual( );
fgState.DisplayMode &= ~GLUT_DOUBLE;
}
/*
* GLUT also checks for multi-sampling, but I don't see that
* anywhere else in FREEGLUT so I won't bother with it for the moment.
*/
}
FREEGLUT_INTERNAL_ERROR_EXIT( window->Window.VisualInfo != NULL,
"Visual with necessary capabilities not found", "fgOpenWindow" );
/*
* XXX HINT: the masks should be updated when adding/removing callbacks.
* XXX This might speed up message processing. Is that true?
* XXX
* XXX A: Not appreciably, but it WILL make it easier to debug.
* XXX Try tracing old GLUT and try tracing freeglut. Old GLUT
* XXX turns off events that it doesn't need and is a whole lot
* XXX more pleasant to trace. (Think mouse-motion! Tons of
* XXX ``bonus'' GUI events stream in.)
*/
winAttr.event_mask =
StructureNotifyMask | SubstructureNotifyMask | ExposureMask |
ButtonPressMask | ButtonReleaseMask | KeyPressMask | KeyReleaseMask |
VisibilityChangeMask | EnterWindowMask | LeaveWindowMask |
PointerMotionMask | ButtonMotionMask;
winAttr.background_pixmap = None;
winAttr.background_pixel = 0;
winAttr.border_pixel = 0;
winAttr.colormap = XCreateColormap(
fgDisplay.Display, fgDisplay.RootWindow,
window->Window.VisualInfo->visual, AllocNone
);
mask = CWBackPixmap | CWBorderPixel | CWColormap | CWEventMask;
if( window->IsMenu || ( gameMode == GL_TRUE ) )
{
winAttr.override_redirect = True;
mask |= CWOverrideRedirect;
}
window->Window.Handle = XCreateWindow(
fgDisplay.Display,
window->Parent == NULL ? fgDisplay.RootWindow :
window->Parent->Window.Handle,
x, y, w, h, 0,
window->Window.VisualInfo->depth, InputOutput,
window->Window.VisualInfo->visual, mask,
&winAttr
);
/*
* The GLX context creation, possibly trying the direct context rendering
* or else use the current context if the user has so specified
*/
if( window->IsMenu )
{
/*
* If there isn't already an OpenGL rendering context for menu
* windows, make one
*/
if( !fgStructure.MenuContext )
{
fgStructure.MenuContext =
(SFG_MenuContext *)malloc( sizeof(SFG_MenuContext) );
fgStructure.MenuContext->VisualInfo = window->Window.VisualInfo;
fgStructure.MenuContext->Context = glXCreateContext(
fgDisplay.Display, fgStructure.MenuContext->VisualInfo,
NULL, ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT )
);
}
/* window->Window.Context = fgStructure.MenuContext->Context; */
window->Window.Context = glXCreateContext(
fgDisplay.Display, window->Window.VisualInfo,
NULL, ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT )
);
}
else if( fgState.UseCurrentContext )
{
window->Window.Context = glXGetCurrentContext( );
if( ! window->Window.Context )
window->Window.Context = glXCreateContext(
fgDisplay.Display, window->Window.VisualInfo,
NULL, ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT )
);
}
else
window->Window.Context = glXCreateContext(
fgDisplay.Display, window->Window.VisualInfo,
NULL, ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT )
);
#if !defined( __FreeBSD__ ) && !defined( __NetBSD__ )
if( !glXIsDirect( fgDisplay.Display, window->Window.Context ) )
{
if( fgState.DirectContext == GLUT_FORCE_DIRECT_CONTEXT )
fgError( "Unable to force direct context rendering for window '%s'",
title );
else if( fgState.DirectContext == GLUT_TRY_DIRECT_CONTEXT )
fgWarning( "Unable to create direct context rendering for window '%s'\nThis may hurt performance.",
title );
}
#endif
/*
* XXX Assume the new window is visible by default
* XXX Is this a safe assumption?
*/
window->State.Visible = GL_TRUE;
sizeHints.flags = 0;
if ( fgState.Position.Use )
sizeHints.flags |= USPosition;
if ( fgState.Size.Use )
sizeHints.flags |= USSize;
/*
* Fill in the size hints values now (the x, y, width and height
* settings are obsolete, are there any more WMs that support them?)
* Unless the X servers actually stop supporting these, we should
* continue to fill them in. It is *not* our place to tell the user
* that they should replace a window manager that they like, and which
* works, just because *we* think that it's not "modern" enough.
*/
sizeHints.x = x;
sizeHints.y = y;
sizeHints.width = w;
sizeHints.height = h;
wmHints.flags = StateHint;
wmHints.initial_state = fgState.ForceIconic ? IconicState : NormalState;
/* Prepare the window and iconified window names... */
XStringListToTextProperty( (char **) &title, 1, &textProperty );
XSetWMProperties(
fgDisplay.Display,
window->Window.Handle,
&textProperty,
&textProperty,
0,
0,
&sizeHints,
&wmHints,
NULL
);
XFree( textProperty.value );
XSetWMProtocols( fgDisplay.Display, window->Window.Handle,
&fgDisplay.DeleteWindow, 1 );
glXMakeCurrent(
fgDisplay.Display,
window->Window.Handle,
window->Window.Context
);
XMapWindow( fgDisplay.Display, window->Window.Handle );
#elif TARGET_HOST_WIN32 || TARGET_HOST_WINCE
WNDCLASS wc;
DWORD flags;
DWORD exFlags = 0;
ATOM atom;
/* Grab the window class we have registered on glutInit(): */
atom = GetClassInfo( fgDisplay.Instance, _T("FREEGLUT"), &wc );
FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Info Not Found",
"fgOpenWindow" );
if( gameMode )
{
FREEGLUT_INTERNAL_ERROR_EXIT ( window->Parent == NULL,
"Game mode being invoked on a subwindow",
"fgOpenWindow" );
/*
* Set the window creation flags appropriately to make the window
* entirely visible:
*/
flags = WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE;
}
else
{
#if !TARGET_HOST_WINCE
if ( ( ! isSubWindow ) && ( ! window->IsMenu ) )
{
/*
* Update the window dimensions, taking account of window
* decorations. "freeglut" is to create the window with the
* outside of its border at (x,y) and with dimensions (w,h).
*/
w += (GetSystemMetrics( SM_CXSIZEFRAME ) )*2;
h += (GetSystemMetrics( SM_CYSIZEFRAME ) )*2 +
GetSystemMetrics( SM_CYCAPTION );
}
#endif /* TARGET_HOST_WINCE */
if( ! fgState.Position.Use )
{
x = CW_USEDEFAULT;
y = CW_USEDEFAULT;
}
if( ! fgState.Size.Use )
{
w = CW_USEDEFAULT;
h = CW_USEDEFAULT;
}
/*
* There's a small difference between creating the top, child and
* game mode windows
*/
flags = WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE;
if ( window->IsMenu )
{
flags |= WS_POPUP;
exFlags |= WS_EX_TOOLWINDOW;
}
#if !TARGET_HOST_WINCE
else if( window->Parent == NULL )
flags |= WS_OVERLAPPEDWINDOW;
#endif
else
flags |= WS_CHILD;
}
#if TARGET_HOST_WINCE
{
wchar_t* wstr = fghWstrFromStr(title);
window->Window.Handle = CreateWindow(
_T("FREEGLUT"),
wstr,
WS_VISIBLE | WS_POPUP,
0,0, 240,320,
NULL,
NULL,
fgDisplay.Instance,
(LPVOID) window
);
free(wstr);
SHFullScreen(window->Window.Handle, SHFS_HIDESTARTICON);
SHFullScreen(window->Window.Handle, SHFS_HIDESIPBUTTON);
SHFullScreen(window->Window.Handle, SHFS_HIDETASKBAR);
MoveWindow(window->Window.Handle, 0, 0, 240, 320, TRUE);
ShowWindow(window->Window.Handle, SW_SHOW);
UpdateWindow(window->Window.Handle);
}
#else
window->Window.Handle = CreateWindowExA(
exFlags,
"FREEGLUT",
title,
flags,
x, y, w, h,
(HWND) window->Parent == NULL ? NULL : window->Parent->Window.Handle,
(HMENU) NULL,
fgDisplay.Instance,
(LPVOID) window
);
#endif /* TARGET_HOST_WINCE */
if( !( window->Window.Handle ) )
fgError( "Failed to create a window (%s)!", title );
#if TARGET_HOST_WINCE
ShowWindow( window->Window.Handle, SW_SHOW );
#else
ShowWindow( window->Window.Handle,
fgState.ForceIconic ? SW_SHOWMINIMIZED : SW_SHOW );
#endif /* TARGET_HOST_WINCE */
UpdateWindow( window->Window.Handle );
ShowCursor( TRUE ); /* XXX Old comments say "hide cursor"! */
#endif
fgSetWindow( window );
window->Window.DoubleBuffered =
( fgState.DisplayMode & GLUT_DOUBLE ) ? 1 : 0;
if ( ! window->Window.DoubleBuffered )
{
glDrawBuffer ( GL_FRONT );
glReadBuffer ( GL_FRONT );
}
}
/*
* The window procedure for handling Win32 events
*/
LRESULT CALLBACK fgPlatformWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam,
LPARAM lParam )
{
static unsigned char lControl = 0, rControl = 0, lShift = 0,
rShift = 0, lAlt = 0, rAlt = 0;
SFG_Window* window;
PAINTSTRUCT ps;
LRESULT lRet = 1;
FREEGLUT_INTERNAL_ERROR_EXIT_IF_NOT_INITIALISED ( "Event Handler" ) ;
window = fgWindowByHandle( hWnd );
if ( ( window == NULL ) && ( uMsg != WM_CREATE ) )
return DefWindowProc( hWnd, uMsg, wParam, lParam );
/* printf ( "Window %3d message <%04x> %12d %12d\n", window?window->ID:0,
uMsg, wParam, lParam ); */
if ( window )
{
/* Checking for CTRL, ALT, and SHIFT key positions: Key Down! */
if ( !lControl && GetAsyncKeyState ( VK_LCONTROL ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_CTRL_L, window->State.MouseX, window->State.MouseY )
);
lControl = 1;
}
if ( !rControl && GetAsyncKeyState ( VK_RCONTROL ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_CTRL_R, window->State.MouseX, window->State.MouseY )
);
rControl = 1;
}
if ( !lShift && GetAsyncKeyState ( VK_LSHIFT ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_SHIFT_L, window->State.MouseX, window->State.MouseY )
);
lShift = 1;
}
if ( !rShift && GetAsyncKeyState ( VK_RSHIFT ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_SHIFT_R, window->State.MouseX, window->State.MouseY )
);
rShift = 1;
}
if ( !lAlt && GetAsyncKeyState ( VK_LMENU ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_ALT_L, window->State.MouseX, window->State.MouseY )
);
lAlt = 1;
}
if ( !rAlt && GetAsyncKeyState ( VK_RMENU ) )
{
INVOKE_WCB ( *window, Special,
( GLUT_KEY_ALT_R, window->State.MouseX, window->State.MouseY )
);
rAlt = 1;
}
/* Checking for CTRL, ALT, and SHIFT key positions: Key Up! */
if ( lControl && !GetAsyncKeyState ( VK_LCONTROL ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_CTRL_L, window->State.MouseX, window->State.MouseY )
);
lControl = 0;
}
if ( rControl && !GetAsyncKeyState ( VK_RCONTROL ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_CTRL_R, window->State.MouseX, window->State.MouseY )
);
rControl = 0;
}
if ( lShift && !GetAsyncKeyState ( VK_LSHIFT ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_SHIFT_L, window->State.MouseX, window->State.MouseY )
);
lShift = 0;
}
if ( rShift && !GetAsyncKeyState ( VK_RSHIFT ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_SHIFT_R, window->State.MouseX, window->State.MouseY )
);
rShift = 0;
}
if ( lAlt && !GetAsyncKeyState ( VK_LMENU ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_ALT_L, window->State.MouseX, window->State.MouseY )
);
lAlt = 0;
}
if ( rAlt && !GetAsyncKeyState ( VK_RMENU ) )
{
INVOKE_WCB ( *window, SpecialUp,
( GLUT_KEY_ALT_R, window->State.MouseX, window->State.MouseY )
);
rAlt = 0;
}
}
switch( uMsg )
{
case WM_CREATE:
/* The window structure is passed as the creation structure parameter... */
window = (SFG_Window *) (((LPCREATESTRUCT) lParam)->lpCreateParams);
FREEGLUT_INTERNAL_ERROR_EXIT ( ( window != NULL ), "Cannot create window",
"fgPlatformWindowProc" );
window->Window.Handle = hWnd;
window->Window.pContext.Device = GetDC( hWnd );
if( window->IsMenu )
{
unsigned int current_DisplayMode = fgState.DisplayMode;
fgState.DisplayMode = GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH;
#if !defined(_WIN32_WCE)
fgSetupPixelFormat( window, GL_FALSE, PFD_MAIN_PLANE );
#endif
fgState.DisplayMode = current_DisplayMode;
if( fgStructure.MenuContext )
wglMakeCurrent( window->Window.pContext.Device,
fgStructure.MenuContext->MContext
);
else
{
fgStructure.MenuContext =
(SFG_MenuContext *)malloc( sizeof(SFG_MenuContext) );
fgStructure.MenuContext->MContext =
wglCreateContext( window->Window.pContext.Device );
}
/* window->Window.Context = wglGetCurrentContext (); */
window->Window.Context = wglCreateContext( window->Window.pContext.Device );
}
else
{
#if !defined(_WIN32_WCE)
fgSetupPixelFormat( window, GL_FALSE, PFD_MAIN_PLANE );
#endif
if( ! fgState.UseCurrentContext )
window->Window.Context =
wglCreateContext( window->Window.pContext.Device );
else
{
window->Window.Context = wglGetCurrentContext( );
if( ! window->Window.Context )
window->Window.Context =
wglCreateContext( window->Window.pContext.Device );
}
#if !defined(_WIN32_WCE)
fgNewWGLCreateContext( window );
#endif
}
window->State.NeedToResize = GL_TRUE;
/* if we used CW_USEDEFAULT (thats a negative value) for the size
* of the window, query the window now for the size at which it
* was created.
*/
if( ( window->State.Width < 0 ) || ( window->State.Height < 0 ) )
{
SFG_Window *current_window = fgStructure.CurrentWindow;
fgSetWindow( window );
window->State.Width = glutGet( GLUT_WINDOW_WIDTH );
window->State.Height = glutGet( GLUT_WINDOW_HEIGHT );
fgSetWindow( current_window );
}
ReleaseDC( window->Window.Handle, window->Window.pContext.Device );
#if defined(_WIN32_WCE)
/* Take over button handling */
{
HINSTANCE dxDllLib=LoadLibrary(_T("gx.dll"));
if (dxDllLib)
{
GXGetDefaultKeys_=(GXGETDEFAULTKEYS)GetProcAddress(dxDllLib, _T("?GXGetDefaultKeys@@YA?AUGXKeyList@@H@Z"));
GXOpenInput_=(GXOPENINPUT)GetProcAddress(dxDllLib, _T("?GXOpenInput@@YAHXZ"));
}
if(GXOpenInput_)
(*GXOpenInput_)();
if(GXGetDefaultKeys_)
gxKeyList = (*GXGetDefaultKeys_)(GX_LANDSCAPEKEYS);
}
#endif /* defined(_WIN32_WCE) */
break;
case WM_SIZE:
/*
* If the window is visible, then it is the user manually resizing it.
* If it is not, then it is the system sending us a dummy resize with
* zero dimensions on a "glutIconifyWindow" call.
*/
if( window->State.Visible )
{
window->State.NeedToResize = GL_TRUE;
#if defined(_WIN32_WCE)
window->State.Width = HIWORD(lParam);
window->State.Height = LOWORD(lParam);
#else
window->State.Width = LOWORD(lParam);
window->State.Height = HIWORD(lParam);
#endif /* defined(_WIN32_WCE) */
}
break;
case WM_SETFOCUS:
/* printf("WM_SETFOCUS: %p\n", window ); */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
INVOKE_WCB( *window, Entry, ( GLUT_ENTERED ) );
UpdateWindow ( hWnd );
break;
case WM_KILLFOCUS:
/* printf("WM_KILLFOCUS: %p\n", window ); */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
INVOKE_WCB( *window, Entry, ( GLUT_LEFT ) );
if( window->IsMenu &&
window->ActiveMenu && window->ActiveMenu->IsActive )
fgUpdateMenuHighlight( window->ActiveMenu );
break;
#if 0
case WM_ACTIVATE:
if (LOWORD(wParam) != WA_INACTIVE)
{
/* printf("WM_ACTIVATE: fgSetCursor( %p, %d)\n", window,
window->State.Cursor ); */
fgSetCursor( window, window->State.Cursor );
}
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
#endif
case WM_SETCURSOR:
/* printf ( "Cursor event %x %x %x %x\n", window, window->State.Cursor, lParam, wParam ) ; */
if( LOWORD( lParam ) == HTCLIENT )
fgSetCursor ( window, window->State.Cursor ) ;
else
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
case WM_SHOWWINDOW:
window->State.Visible = GL_TRUE;
window->State.Redisplay = GL_TRUE;
break;
case WM_PAINT:
/* Turn on the visibility in case it was turned off somehow */
window->State.Visible = GL_TRUE;
BeginPaint( hWnd, &ps );
fghRedrawWindow( window );
EndPaint( hWnd, &ps );
break;
case WM_CLOSE:
fgDestroyWindow ( window );
if ( fgState.ActionOnWindowClose != GLUT_ACTION_CONTINUE_EXECUTION )
PostQuitMessage(0);
break;
case WM_DESTROY:
/*
* The window already got destroyed, so don't bother with it.
*/
return 0;
case WM_MOUSEMOVE:
{
#if defined(_WIN32_WCE)
window->State.MouseX = 320-HIWORD( lParam );
window->State.MouseY = LOWORD( lParam );
#else
window->State.MouseX = LOWORD( lParam );
window->State.MouseY = HIWORD( lParam );
#endif /* defined(_WIN32_WCE) */
/* Restrict to [-32768, 32767] to match X11 behaviour */
/* See comment in "freeglut_developer" mailing list 10/4/04 */
if ( window->State.MouseX > 32767 ) window->State.MouseX -= 65536;
if ( window->State.MouseY > 32767 ) window->State.MouseY -= 65536;
if ( window->ActiveMenu )
{
fgUpdateMenuHighlight( window->ActiveMenu );
break;
}
SetFocus(window->Window.Handle);
fgState.Modifiers = fgPlatformGetModifiers( );
if( ( wParam & MK_LBUTTON ) ||
( wParam & MK_MBUTTON ) ||
( wParam & MK_RBUTTON ) )
INVOKE_WCB( *window, Motion, ( window->State.MouseX,
window->State.MouseY ) );
else
INVOKE_WCB( *window, Passive, ( window->State.MouseX,
window->State.MouseY ) );
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
{
GLboolean pressed = GL_TRUE;
int button;
#if defined(_WIN32_WCE)
window->State.MouseX = 320-HIWORD( lParam );
window->State.MouseY = LOWORD( lParam );
#else
window->State.MouseX = LOWORD( lParam );
window->State.MouseY = HIWORD( lParam );
#endif /* defined(_WIN32_WCE) */
/* Restrict to [-32768, 32767] to match X11 behaviour */
/* See comment in "freeglut_developer" mailing list 10/4/04 */
if ( window->State.MouseX > 32767 ) window->State.MouseX -= 65536;
if ( window->State.MouseY > 32767 ) window->State.MouseY -= 65536;
switch( uMsg )
{
case WM_LBUTTONDOWN:
pressed = GL_TRUE;
button = GLUT_LEFT_BUTTON;
break;
case WM_MBUTTONDOWN:
pressed = GL_TRUE;
button = GLUT_MIDDLE_BUTTON;
break;
case WM_RBUTTONDOWN:
pressed = GL_TRUE;
button = GLUT_RIGHT_BUTTON;
break;
case WM_LBUTTONUP:
pressed = GL_FALSE;
button = GLUT_LEFT_BUTTON;
break;
case WM_MBUTTONUP:
pressed = GL_FALSE;
button = GLUT_MIDDLE_BUTTON;
break;
case WM_RBUTTONUP:
pressed = GL_FALSE;
button = GLUT_RIGHT_BUTTON;
break;
default:
pressed = GL_FALSE;
button = -1;
break;
}
#if !defined(_WIN32_WCE)
if( GetSystemMetrics( SM_SWAPBUTTON ) )
{
if( button == GLUT_LEFT_BUTTON )
button = GLUT_RIGHT_BUTTON;
else
if( button == GLUT_RIGHT_BUTTON )
button = GLUT_LEFT_BUTTON;
}
#endif /* !defined(_WIN32_WCE) */
if( button == -1 )
return DefWindowProc( hWnd, uMsg, lParam, wParam );
/*
* Do not execute the application's mouse callback if a menu
* is hooked to this button. In that case an appropriate
* private call should be generated.
*/
if( fgCheckActiveMenu( window, button, pressed,
window->State.MouseX, window->State.MouseY ) )
break;
/* Set capture so that the window captures all the mouse messages */
/*
* XXX - Multiple button support: Under X11, the mouse is not released
* XXX - from the window until all buttons have been released, even if the
* XXX - user presses a button in another window. This will take more
* XXX - code changes than I am up to at the moment (10/5/04). The present
* XXX - is a 90 percent solution.
*/
if ( pressed == GL_TRUE )
SetCapture ( window->Window.Handle ) ;
else
ReleaseCapture () ;
if( ! FETCH_WCB( *window, Mouse ) )
break;
fgSetWindow( window );
fgState.Modifiers = fgPlatformGetModifiers( );
INVOKE_WCB(
*window, Mouse,
( button,
pressed ? GLUT_DOWN : GLUT_UP,
window->State.MouseX,
window->State.MouseY
)
);
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case 0x020a:
/* Should be WM_MOUSEWHEEL but my compiler doesn't recognize it */
{
int wheel_number = LOWORD( wParam );
short ticks = ( short )HIWORD( wParam );
fgState.MouseWheelTicks += ticks;
/*
* XXX Should use WHEEL_DELTA instead of 120
*/
if ( abs ( fgState.MouseWheelTicks ) > 120 )
{
int direction = ( fgState.MouseWheelTicks > 0 ) ? 1 : -1;
if( ! FETCH_WCB( *window, MouseWheel ) &&
! FETCH_WCB( *window, Mouse ) )
break;
fgSetWindow( window );
fgState.Modifiers = fgPlatformGetModifiers( );
/*
* XXX Should use WHEEL_DELTA instead of 120
*/
while( abs ( fgState.MouseWheelTicks ) > 120 )
{
if( FETCH_WCB( *window, MouseWheel ) )
INVOKE_WCB( *window, MouseWheel,
( wheel_number,
direction,
window->State.MouseX,
window->State.MouseY
)
);
else /* No mouse wheel, call the mouse button callback twice */
{
/*
* Map wheel zero to button 3 and 4; +1 to 3, -1 to 4
* " " one +1 to 5, -1 to 6, ...
*
* XXX The below assumes that you have no more than 3 mouse
* XXX buttons. Sorry.
*/
int button = wheel_number * 2 + 3;
if( direction < 0 )
++button;
INVOKE_WCB( *window, Mouse,
( button, GLUT_DOWN,
window->State.MouseX, window->State.MouseY )
);
INVOKE_WCB( *window, Mouse,
( button, GLUT_UP,
window->State.MouseX, window->State.MouseY )
);
}
/*
* XXX Should use WHEEL_DELTA instead of 120
*/
fgState.MouseWheelTicks -= 120 * direction;
}
fgState.Modifiers = INVALID_MODIFIERS;
}
}
break ;
case WM_SYSKEYDOWN:
case WM_KEYDOWN:
{
int keypress = -1;
POINT mouse_pos ;
if( ( fgState.KeyRepeat==GLUT_KEY_REPEAT_OFF || window->State.IgnoreKeyRepeat==GL_TRUE ) && (HIWORD(lParam) & KF_REPEAT) )
break;
/*
* Remember the current modifiers state. This is done here in order
* to make sure the VK_DELETE keyboard callback is executed properly.
*/
fgState.Modifiers = fgPlatformGetModifiers( );
GetCursorPos( &mouse_pos );
ScreenToClient( window->Window.Handle, &mouse_pos );
window->State.MouseX = mouse_pos.x;
window->State.MouseY = mouse_pos.y;
/* Convert the Win32 keystroke codes to GLUTtish way */
# define KEY(a,b) case a: keypress = b; break;
switch( wParam )
{
KEY( VK_F1, GLUT_KEY_F1 );
KEY( VK_F2, GLUT_KEY_F2 );
KEY( VK_F3, GLUT_KEY_F3 );
KEY( VK_F4, GLUT_KEY_F4 );
KEY( VK_F5, GLUT_KEY_F5 );
KEY( VK_F6, GLUT_KEY_F6 );
KEY( VK_F7, GLUT_KEY_F7 );
KEY( VK_F8, GLUT_KEY_F8 );
KEY( VK_F9, GLUT_KEY_F9 );
KEY( VK_F10, GLUT_KEY_F10 );
KEY( VK_F11, GLUT_KEY_F11 );
KEY( VK_F12, GLUT_KEY_F12 );
KEY( VK_PRIOR, GLUT_KEY_PAGE_UP );
KEY( VK_NEXT, GLUT_KEY_PAGE_DOWN );
KEY( VK_HOME, GLUT_KEY_HOME );
KEY( VK_END, GLUT_KEY_END );
KEY( VK_LEFT, GLUT_KEY_LEFT );
KEY( VK_UP, GLUT_KEY_UP );
KEY( VK_RIGHT, GLUT_KEY_RIGHT );
KEY( VK_DOWN, GLUT_KEY_DOWN );
KEY( VK_INSERT, GLUT_KEY_INSERT );
KEY( VK_LCONTROL, GLUT_KEY_CTRL_L );
KEY( VK_RCONTROL, GLUT_KEY_CTRL_R );
KEY( VK_LSHIFT, GLUT_KEY_SHIFT_L );
KEY( VK_RSHIFT, GLUT_KEY_SHIFT_R );
KEY( VK_LMENU, GLUT_KEY_ALT_L );
KEY( VK_RMENU, GLUT_KEY_ALT_R );
case VK_DELETE:
/* The delete key should be treated as an ASCII keypress: */
INVOKE_WCB( *window, Keyboard,
( 127, window->State.MouseX, window->State.MouseY )
);
}
#if defined(_WIN32_WCE)
if(!(lParam & 0x40000000)) /* Prevent auto-repeat */
{
if(wParam==(unsigned)gxKeyList.vkRight)
keypress = GLUT_KEY_RIGHT;
else if(wParam==(unsigned)gxKeyList.vkLeft)
keypress = GLUT_KEY_LEFT;
else if(wParam==(unsigned)gxKeyList.vkUp)
keypress = GLUT_KEY_UP;
else if(wParam==(unsigned)gxKeyList.vkDown)
keypress = GLUT_KEY_DOWN;
else if(wParam==(unsigned)gxKeyList.vkA)
keypress = GLUT_KEY_F1;
else if(wParam==(unsigned)gxKeyList.vkB)
keypress = GLUT_KEY_F2;
else if(wParam==(unsigned)gxKeyList.vkC)
keypress = GLUT_KEY_F3;
else if(wParam==(unsigned)gxKeyList.vkStart)
keypress = GLUT_KEY_F4;
}
#endif
if( keypress != -1 )
INVOKE_WCB( *window, Special,
( keypress,
window->State.MouseX, window->State.MouseY )
);
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case WM_SYSKEYUP:
case WM_KEYUP:
{
int keypress = -1;
POINT mouse_pos;
/*
* Remember the current modifiers state. This is done here in order
* to make sure the VK_DELETE keyboard callback is executed properly.
*/
fgState.Modifiers = fgPlatformGetModifiers( );
GetCursorPos( &mouse_pos );
ScreenToClient( window->Window.Handle, &mouse_pos );
window->State.MouseX = mouse_pos.x;
window->State.MouseY = mouse_pos.y;
/*
* Convert the Win32 keystroke codes to GLUTtish way.
* "KEY(a,b)" was defined under "WM_KEYDOWN"
*/
switch( wParam )
{
KEY( VK_F1, GLUT_KEY_F1 );
KEY( VK_F2, GLUT_KEY_F2 );
KEY( VK_F3, GLUT_KEY_F3 );
KEY( VK_F4, GLUT_KEY_F4 );
KEY( VK_F5, GLUT_KEY_F5 );
KEY( VK_F6, GLUT_KEY_F6 );
KEY( VK_F7, GLUT_KEY_F7 );
KEY( VK_F8, GLUT_KEY_F8 );
KEY( VK_F9, GLUT_KEY_F9 );
KEY( VK_F10, GLUT_KEY_F10 );
KEY( VK_F11, GLUT_KEY_F11 );
KEY( VK_F12, GLUT_KEY_F12 );
KEY( VK_PRIOR, GLUT_KEY_PAGE_UP );
KEY( VK_NEXT, GLUT_KEY_PAGE_DOWN );
KEY( VK_HOME, GLUT_KEY_HOME );
KEY( VK_END, GLUT_KEY_END );
KEY( VK_LEFT, GLUT_KEY_LEFT );
KEY( VK_UP, GLUT_KEY_UP );
KEY( VK_RIGHT, GLUT_KEY_RIGHT );
KEY( VK_DOWN, GLUT_KEY_DOWN );
KEY( VK_INSERT, GLUT_KEY_INSERT );
KEY( VK_LCONTROL, GLUT_KEY_CTRL_L );
KEY( VK_RCONTROL, GLUT_KEY_CTRL_R );
KEY( VK_LSHIFT, GLUT_KEY_SHIFT_L );
KEY( VK_RSHIFT, GLUT_KEY_SHIFT_R );
KEY( VK_LMENU, GLUT_KEY_ALT_L );
KEY( VK_RMENU, GLUT_KEY_ALT_R );
case VK_DELETE:
/* The delete key should be treated as an ASCII keypress: */
INVOKE_WCB( *window, KeyboardUp,
( 127, window->State.MouseX, window->State.MouseY )
);
break;
default:
{
#if !defined(_WIN32_WCE)
BYTE state[ 256 ];
WORD code[ 2 ];
GetKeyboardState( state );
if( ToAscii( (UINT)wParam, 0, state, code, 0 ) == 1 )
wParam=code[ 0 ];
INVOKE_WCB( *window, KeyboardUp,
( (char)wParam,
window->State.MouseX, window->State.MouseY )
);
#endif /* !defined(_WIN32_WCE) */
}
}
if( keypress != -1 )
INVOKE_WCB( *window, SpecialUp,
( keypress,
window->State.MouseX, window->State.MouseY )
);
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case WM_SYSCHAR:
case WM_CHAR:
{
if( (fgState.KeyRepeat==GLUT_KEY_REPEAT_OFF || window->State.IgnoreKeyRepeat==GL_TRUE) && (HIWORD(lParam) & KF_REPEAT) )
break;
fgState.Modifiers = fgPlatformGetModifiers( );
INVOKE_WCB( *window, Keyboard,
( (char)wParam,
window->State.MouseX, window->State.MouseY )
);
fgState.Modifiers = INVALID_MODIFIERS;
}
break;
case WM_CAPTURECHANGED:
/* User has finished resizing the window, force a redraw */
INVOKE_WCB( *window, Display, ( ) );
/*lRet = DefWindowProc( hWnd, uMsg, wParam, lParam ); */
break;
/* Other messages that I have seen and which are not handled already */
case WM_SETTEXT: /* 0x000c */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
/* Pass it on to "DefWindowProc" to set the window text */
break;
case WM_GETTEXT: /* 0x000d */
/* Ideally we would copy the title of the window into "lParam" */
/* strncpy ( (char *)lParam, "Window Title", wParam );
lRet = ( wParam > 12 ) ? 12 : wParam; */
/* the number of characters copied */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
case WM_GETTEXTLENGTH: /* 0x000e */
/* Ideally we would get the length of the title of the window */
lRet = 12;
/* the number of characters in "Window Title\0" (see above) */
break;
case WM_ERASEBKGND: /* 0x0014 */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
#if !defined(_WIN32_WCE)
case WM_SYNCPAINT: /* 0x0088 */
/* Another window has moved, need to update this one */
window->State.Redisplay = GL_TRUE;
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
/* Help screen says this message must be passed to "DefWindowProc" */
break;
case WM_NCPAINT: /* 0x0085 */
/* Need to update the border of this window */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
/* Pass it on to "DefWindowProc" to repaint a standard border */
break;
case WM_SYSCOMMAND : /* 0x0112 */
{
/*
* We have received a system command message. Try to act on it.
* The commands are passed in through the "wParam" parameter:
* The least significant digit seems to be which edge of the window
* is being used for a resize event:
* 4 3 5
* 1 2
* 7 6 8
* Congratulations and thanks to Richard Rauch for figuring this out..
*/
switch ( wParam & 0xfff0 )
{
case SC_SIZE :
break ;
case SC_MOVE :
break ;
case SC_MINIMIZE :
/* User has clicked on the "-" to minimize the window */
/* Turn off the visibility */
window->State.Visible = GL_FALSE ;
break ;
case SC_MAXIMIZE :
break ;
case SC_NEXTWINDOW :
break ;
case SC_PREVWINDOW :
break ;
case SC_CLOSE :
/* Followed very closely by a WM_CLOSE message */
break ;
case SC_VSCROLL :
break ;
case SC_HSCROLL :
break ;
case SC_MOUSEMENU :
break ;
case SC_KEYMENU :
break ;
case SC_ARRANGE :
break ;
case SC_RESTORE :
break ;
case SC_TASKLIST :
break ;
case SC_SCREENSAVE :
break ;
case SC_HOTKEY :
break ;
#if(WINVER >= 0x0400)
case SC_DEFAULT :
break ;
case SC_MONITORPOWER :
break ;
case SC_CONTEXTHELP :
break ;
#endif /* WINVER >= 0x0400 */
default:
#if _DEBUG
fgWarning( "Unknown wParam type 0x%x", wParam );
#endif
break;
}
}
#endif /* !defined(_WIN32_WCE) */
/* We need to pass the message on to the operating system as well */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
#ifdef WM_TOUCH
/* handle multi-touch messages */
case WM_TOUCH:
{
unsigned int numInputs = (unsigned int)wParam;
unsigned int i = 0;
TOUCHINPUT* ti = (TOUCHINPUT*)malloc( sizeof(TOUCHINPUT)*numInputs);
if (fghGetTouchInputInfo == (pGetTouchInputInfo)0xDEADBEEF) {
fghGetTouchInputInfo = (pGetTouchInputInfo)GetProcAddress(GetModuleHandle("user32"),"GetTouchInputInfo");
fghCloseTouchInputHandle = (pCloseTouchInputHandle)GetProcAddress(GetModuleHandle("user32"),"CloseTouchInputHandle");
}
if (!fghGetTouchInputInfo) {
free( (void*)ti );
break;
}
if (fghGetTouchInputInfo( (HTOUCHINPUT)lParam, numInputs, ti, sizeof(TOUCHINPUT) )) {
/* Handle each contact point */
for (i = 0; i < numInputs; ++i ) {
POINT tp;
tp.x = TOUCH_COORD_TO_PIXEL(ti[i].x);
tp.y = TOUCH_COORD_TO_PIXEL(ti[i].y);
ScreenToClient( hWnd, &tp );
ti[i].dwID = ti[i].dwID * 2;
if (ti[i].dwFlags & TOUCHEVENTF_DOWN) {
INVOKE_WCB( *window, MultiEntry, ( ti[i].dwID, GLUT_ENTERED ) );
INVOKE_WCB( *window, MultiButton, ( ti[i].dwID, tp.x, tp.y, 0, GLUT_DOWN ) );
} else if (ti[i].dwFlags & TOUCHEVENTF_MOVE) {
INVOKE_WCB( *window, MultiMotion, ( ti[i].dwID, tp.x, tp.y ) );
} else if (ti[i].dwFlags & TOUCHEVENTF_UP) {
INVOKE_WCB( *window, MultiButton, ( ti[i].dwID, tp.x, tp.y, 0, GLUT_UP ) );
INVOKE_WCB( *window, MultiEntry, ( ti[i].dwID, GLUT_LEFT ) );
}
}
}
fghCloseTouchInputHandle((HTOUCHINPUT)lParam);
free( (void*)ti );
lRet = 0; /*DefWindowProc( hWnd, uMsg, wParam, lParam );*/
break;
}
#endif
default:
/* Handle unhandled messages */
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
break;
}
return lRet;
}
/*
* Deactivates a menu pointed by the function argument.
*/
void fgDeactivateMenu( SFG_Window *window )
{
SFG_Window *parent_window = NULL;
SFG_Menu* menu;
SFG_MenuEntry *menuEntry;
/* Did we find an active window? */
freeglut_return_if_fail( window );
/* Check if there is an active menu attached to this window... */
menu = window->ActiveMenu;
freeglut_return_if_fail( menu );
parent_window = menu->ParentWindow;
/* Hide the present menu's window */
fgSetWindow( menu->Window );
glutHideWindow( );
/* Forget about having that menu active anymore, now: */
menu->Window->ActiveMenu = NULL;
menu->ParentWindow->ActiveMenu = NULL;
fghSetMenuParentWindow ( NULL, menu );
menu->IsActive = GL_FALSE;
menu->ActiveEntry = NULL;
fgState.ActiveMenus--;
/* Hide all submenu windows, and the root menu's window. */
for ( menuEntry = ( SFG_MenuEntry * )menu->Entries.First;
menuEntry;
menuEntry = ( SFG_MenuEntry * )menuEntry->Node.Next )
{
menuEntry->IsActive = GL_FALSE;
/* Is that an active submenu by any chance? */
if( menuEntry->SubMenu )
fghDeactivateSubMenu( menuEntry );
}
fgSetWindow ( parent_window ) ;
/* Menu status callback */
if (fgState.MenuStateCallback || fgState.MenuStatusCallback)
{
fgStructure.CurrentMenu = menu;
fgStructure.CurrentWindow = parent_window;
if (fgState.MenuStateCallback)
fgState.MenuStateCallback(GLUT_MENU_NOT_IN_USE);
if (fgState.MenuStatusCallback)
{
/* Get cursor position on screen and convert to relative to parent_window's client area */
SFG_XYUse mouse_pos;
fghGetCursorPos(&mouse_pos);
mouse_pos.X -= glutGet( GLUT_WINDOW_X );
mouse_pos.Y -= glutGet( GLUT_WINDOW_Y );
fgState.MenuStatusCallback(GLUT_MENU_NOT_IN_USE, mouse_pos.X, mouse_pos.Y);
}
}
}
/*
* Enters the freeglut processing loop.
* Stays until the "ExecState" changes to "GLUT_EXEC_STATE_STOP".
*/
void FGAPIENTRY glutMainLoopMT( void )
{
//int action; //MT
#if TARGET_HOST_WIN32 || TARGET_HOST_WINCE
SFG_Window *window = (SFG_Window *)fgStructure.Windows.First ;
#endif
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMainLoop" );
#if TARGET_HOST_WIN32 || TARGET_HOST_WINCE
/*
* Processing before the main loop: If there is a window which is open and
* which has a visibility callback, call it. I know this is an ugly hack,
* but I'm not sure what else to do about it. Ideally we should leave
* something uninitialized in the create window code and initialize it in
* the main loop, and have that initialization create a "WM_ACTIVATE"
* message. Then we would put the visibility callback code in the
* "case WM_ACTIVATE" block below. - John Fay -- 10/24/02
*/
while( window )
{
if ( FETCH_WCB( *window, Visibility ) )
{
SFG_Window *current_window = fgStructure.CurrentWindow ;
INVOKE_WCB( *window, Visibility, ( window->State.Visible ) );
fgSetWindow( current_window );
}
window = (SFG_Window *)window->Node.Next ;
}
#endif
fgState.ExecState = GLUT_EXEC_STATE_RUNNING ;
while( fgState.ExecState == GLUT_EXEC_STATE_RUNNING )
{
SFG_Window *window;
glutMainLoopEvent( );
/*
* Step through the list of windows, seeing if there are any
* that are not menus
*/
for( window = ( SFG_Window * )fgStructure.Windows.First;
window;
window = ( SFG_Window * )window->Node.Next )
if ( ! ( window->IsMenu ) )
break;
if( ! window )
fgState.ExecState = GLUT_EXEC_STATE_STOP;
else
{
if( fgState.IdleCallback )
{
if( fgStructure.CurrentWindow &&
fgStructure.CurrentWindow->IsMenu )
/* fail safe */
fgSetWindow( window );
fgState.IdleCallback( );
}
fghSleepForEvents( );
}
}
#if 0 //Marc Toussaint
/*
* When this loop terminates, destroy the display, state and structure
* of a freeglut session, so that another glutInit() call can happen
*
* Save the "ActionOnWindowClose" because "fgDeinitialize" resets it.
*/
action = fgState.ActionOnWindowClose;
fgDeinitialize( );
if( action == GLUT_ACTION_EXIT )
exit( 0 );
#endif
}
/*
* Private function to check for the current menu/sub menu activity state
*/
static GLboolean fghCheckMenuStatus( SFG_Window* window, SFG_Menu* menu )
{
SFG_MenuEntry* menuEntry;
int x, y;
/*
* First of all check any of the active sub menus...
*/
for( menuEntry = (SFG_MenuEntry *)menu->Entries.First;
menuEntry;
menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
{
if( menuEntry->SubMenu && menuEntry->IsActive )
{
/*
* OK, have the sub-menu checked, too. If it returns GL_TRUE, it
* will mean that it caught the mouse cursor and we do not need
* to regenerate the activity list, and so our parents do...
*/
GLboolean return_status = fghCheckMenuStatus( window,
menuEntry->SubMenu );
/*
* Reactivate the submenu as the checkMenuStatus may have turned
* it off if the mouse is in its parent menu entry.
*/
menuEntry->SubMenu->IsActive = GL_TRUE;
if ( return_status )
return GL_TRUE;
}
}
/*
* That much about our sub menus, let's get to checking the current menu:
*/
x = window->State.MouseX;
y = window->State.MouseY;
for( menuEntry = (SFG_MenuEntry *)menu->Entries.First;
menuEntry;
menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
menuEntry->IsActive = GL_FALSE;
menu->IsActive = GL_FALSE;
/*
* Check if the mouse cursor is contained within the current menu box
*/
if( ( x >= FREEGLUT_MENU_BORDER ) &&
( x < menu->Width - FREEGLUT_MENU_BORDER ) &&
( y >= FREEGLUT_MENU_BORDER ) &&
( y < menu->Height - FREEGLUT_MENU_BORDER ) &&
( window == menu->Window ) )
{
int menuID = ( y - FREEGLUT_MENU_BORDER ) / FREEGLUT_MENU_HEIGHT;
/*
* The mouse cursor is somewhere over our box, check it out.
*/
menuEntry = fghFindMenuEntry( menu, menuID + 1 );
assert( menuEntry );
menuEntry->IsActive = GL_TRUE;
menuEntry->Ordinal = menuID;
/*
* If this is not the same as the last active menu entry, deactivate
* the previous entry. Specifically, if the previous active entry
* was a submenu then deactivate it.
*/
if( menu->ActiveEntry && ( menuEntry != menu->ActiveEntry ) )
if( menu->ActiveEntry->SubMenu )
fgDeactivateSubMenu( menu->ActiveEntry );
menu->ActiveEntry = menuEntry;
menu->IsActive = GL_TRUE;
/*
* OKi, we have marked that entry as active, but it would be also
* nice to have its contents updated, in case it's a sub menu.
* Also, ignore the return value of the check function:
*/
if( menuEntry->SubMenu )
{
if ( ! menuEntry->SubMenu->IsActive )
{
SFG_Window *current_window = fgStructure.Window;
/*
* Set up the initial menu position now...
*/
menuEntry->SubMenu->IsActive = GL_TRUE;
/*
* Set up the initial submenu position now:
*/
menuEntry->SubMenu->X = menu->X + menu->Width;
menuEntry->SubMenu->Y = menu->Y +
menuEntry->Ordinal * FREEGLUT_MENU_HEIGHT;
if( menuEntry->SubMenu->X + menuEntry->SubMenu->Width >
glutGet( GLUT_SCREEN_WIDTH ) )
menuEntry->SubMenu->X = menu->X -
menuEntry->SubMenu->Width;
if( menuEntry->SubMenu->Y + menuEntry->SubMenu->Height >
glutGet( GLUT_SCREEN_HEIGHT ) )
menuEntry->SubMenu->Y -= ( menuEntry->SubMenu->Height -
FREEGLUT_MENU_HEIGHT -
2 * FREEGLUT_MENU_BORDER );
fgSetWindow( menuEntry->SubMenu->Window );
glutPositionWindow( menuEntry->SubMenu->X,
menuEntry->SubMenu->Y );
glutReshapeWindow( menuEntry->SubMenu->Width,
menuEntry->SubMenu->Height );
glutPopWindow( );
glutShowWindow( );
menuEntry->SubMenu->Window->ActiveMenu = menuEntry->SubMenu;
fgSetWindow( current_window );
}
fghCheckMenuStatus( window, menuEntry->SubMenu );
/*
* Activate it because its parent entry is active
*/
menuEntry->SubMenu->IsActive = GL_TRUE;
}
/*
* Report back that we have caught the menu cursor
*/
return GL_TRUE;
}
/*
* Looks like the menu cursor is somewhere else...
*/
return GL_FALSE;
}
/*
* Displays a menu box and all of its submenus (if they are active)
*/
static void fghDisplayMenuBox( SFG_Menu* menu )
{
SFG_MenuEntry *menuEntry;
int i;
int border = FREEGLUT_MENU_BORDER;
/*
* Have the menu box drawn first. The +- values are
* here just to make it more nice-looking...
*/
/* a non-black dark version of the below. */
glColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
glBegin( GL_QUAD_STRIP );
glVertex2i( menu->Width , 0 );
glVertex2i( menu->Width - border, border);
glVertex2i( 0 , 0 );
glVertex2i( border, border);
glVertex2i( 0 , menu->Height );
glVertex2i( border, menu->Height - border);
glEnd( );
/* a non-black dark version of the below. */
glColor4f( 0.5f, 0.5f, 0.5f, 1.0f );
glBegin( GL_QUAD_STRIP );
glVertex2i( 0 , menu->Height );
glVertex2i( border, menu->Height - border);
glVertex2i( menu->Width , menu->Height );
glVertex2i( menu->Width - border, menu->Height - border);
glVertex2i( menu->Width , 0 );
glVertex2i( menu->Width - border, border);
glEnd( );
glColor4fv( menu_pen_back );
glBegin( GL_QUADS );
glVertex2i( border, border);
glVertex2i( menu->Width - border, border);
glVertex2i( menu->Width - border, menu->Height - border);
glVertex2i( border, menu->Height - border);
glEnd( );
/*
* Check if any of the submenus is currently active...
*/
for( menuEntry = (SFG_MenuEntry *)menu->Entries.First;
menuEntry;
menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next )
{
/*
* Has the menu been marked as active, maybe?
*/
if( menuEntry->IsActive )
{
/*
* That's truly right, and we need to have it highlighted.
* There is an assumption that mouse cursor didn't move
* since the last check of menu activity state:
*/
int menuID = menuEntry->Ordinal;
/*
* So have the highlight drawn...
*/
glColor4fv( menu_pen_hback );
glBegin( GL_QUADS );
glVertex2i( border,
(menuID + 0)*FREEGLUT_MENU_HEIGHT + border );
glVertex2i( menu->Width - border,
(menuID + 0)*FREEGLUT_MENU_HEIGHT + border );
glVertex2i( menu->Width - border,
(menuID + 1)*FREEGLUT_MENU_HEIGHT + border );
glVertex2i( border,
(menuID + 1)*FREEGLUT_MENU_HEIGHT + border );
glEnd( );
}
}
/*
* Print the menu entries now...
*/
glColor4fv( menu_pen_fore );
for( menuEntry = (SFG_MenuEntry *)menu->Entries.First, i = 0;
menuEntry;
menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next, ++i )
{
/*
* If the menu entry is active, set the color to white
*/
if( menuEntry->IsActive )
glColor4fv( menu_pen_hfore );
/*
* Move the raster into position...
*/
/* Try to center the text - JCJ 31 July 2003*/
glRasterPos2i(
2 * border,
( i + 1 )*FREEGLUT_MENU_HEIGHT -
( int )( FREEGLUT_MENU_HEIGHT*0.3 - border )
);
/*
* Have the label drawn, character after character:
*/
glutBitmapString( FREEGLUT_MENU_FONT,
(unsigned char *)menuEntry->Text);
/*
* If it's a submenu, draw a right arrow
*/
if( menuEntry->SubMenu )
{
int width = glutBitmapWidth( FREEGLUT_MENU_FONT, '_' );
int x_base = menu->Width - 2 - width;
int y_base = i*FREEGLUT_MENU_HEIGHT + border;
glBegin( GL_TRIANGLES );
glVertex2i( x_base, y_base + 2*border);
glVertex2i( menu->Width - 2, y_base +
( FREEGLUT_MENU_HEIGHT + border) / 2 );
glVertex2i( x_base, y_base + FREEGLUT_MENU_HEIGHT - border );
glEnd( );
}
/*
* If the menu entry is active, reset the color
*/
if( menuEntry->IsActive )
glColor4fv( menu_pen_fore );
}
/*
* Now we are ready to check if any of our children needs to be redrawn:
*/
for( menuEntry = ( SFG_MenuEntry * )menu->Entries.First;
menuEntry;
menuEntry = ( SFG_MenuEntry * )menuEntry->Node.Next )
{
/*
* Is that an active sub menu by any case?
*/
if( menuEntry->SubMenu && menuEntry->IsActive )
{
/*
* Yeah, indeed. Have it redrawn now:
*/
fgSetWindow( menuEntry->SubMenu->Window );
fghDisplayMenuBox( menuEntry->SubMenu );
fgSetWindow( menu->Window );
}
}
}
