X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Ffreeglut_menu.c;h=f49ca5259a562150ddf8e7081a1a0d5f8950a6e1;hb=ed72c76d33b105b8e3228fc611f26f6ebe7d5c0b;hp=921deecd33c0546420b921059e808c94fd7f3ab4;hpb=646676b8dbf8ab504ac8a275fe9a63a403a3190b;p=freeglut diff --git a/src/freeglut_menu.c b/src/freeglut_menu.c index 921deec..f49ca52 100644 --- a/src/freeglut_menu.c +++ b/src/freeglut_menu.c @@ -37,32 +37,79 @@ /* * TODO BEFORE THE STABLE RELEASE: * - * It would be cool if the submenu entries were somehow marked, for example with a dings - * on the right menu border or something like that. Think about the possibility of doing - * the menu on layers *or* using the native window system instead of OpenGL. + * Wouldn't 1.0 have been "the" stable release? Now we are past 2.0, + * so this comment is probably just out of date. (20031026; rkr) + * + * Think about the possibility of doing the menu on layers *or* using the + * native window system instead of OpenGL. */ /* -- DEFINITIONS ---------------------------------------------------------- */ /* - * We'll be using freeglut fonts to draw the menu + * FREEGLUT_MENU_FONT can be any freeglut bitmapped font. + * (Stroked fonts would not be out of the question, but we'd need to alter + * code, since GLUT (hence freeglut) does not quite unify stroked and + * bitmapped font handling.) + * Old UNIX/X11 GLUT (BSD, UNIX, IRIX, LINUX, HPUX, ...) used a system + * font best approximated by an 18-pixel HELVETICA, I think. MS-WINDOWS + * GLUT used something closest to the 8x13 fixed-width font. (Old + * GLUT apparently uses host-system menus rather than building its own. + * freeglut is building its own menus from scratch.) + * + * FREEGLUT_MENU_HEIGHT gives the height of ONE menu box. This should be + * the distances between two adjacent menu entries. It should scale + * automatically with the font choice, so you needn't alter it---unless you + * use a stroked font. + * + * FREEGLUT_MENU_BORDER says how many pixels to allow around the edge of a + * menu. (It also seems to be the same as the number of pixels used as + * a border around *items* to separate them from neighbors. John says + * that that wasn't the original intent...if not, perhaps we need another + * symbolic constant, FREEGLUT_MENU_ITEM_BORDER, or such.) + */ +#if TARGET_HOST_WIN32 +#define FREEGLUT_MENU_FONT GLUT_BITMAP_8_BY_13 +#else +#define FREEGLUT_MENU_FONT GLUT_BITMAP_HELVETICA_18 +#endif + +#define FREEGLUT_MENU_HEIGHT (glutBitmapHeight(FREEGLUT_MENU_FONT) + FREEGLUT_MENU_BORDER) +#define FREEGLUT_MENU_BORDER 2 + + +/* + * These variables are for rendering the freeglut menu items. + * + * The choices are fore- and background, with and without h for Highlighting. + * Old GLUT appeared to be system-dependant for its colors (sigh) so we are + * too. These variables should be stuffed into global state and initialized + * via the glutInit*() system. */ -#define FREEGLUT_MENU_FONT GLUT_BITMAP_8_BY_13 -#define FREEGLUT_MENU_HEIGHT 15 -#define FREEGLUT_MENU_BORDER 8 +#if TARGET_HOST_WIN32 +static float menu_pen_fore [4] = {0.0f, 0.0f, 0.0f, 1.0f}; +static float menu_pen_back [4] = {0.85f, 0.85f, 0.85f, 1.0f}; +static float menu_pen_hfore [4] = {1.0f, 1.0f, 1.0f, 1.0f}; +static float menu_pen_hback [4] = {0.15f, 0.15f, 0.45f, 1.0f}; +#else +static float menu_pen_fore [4] = {0.0f, 0.0f, 0.0f, 1.0f}; +static float menu_pen_back [4] = {0.70f, 0.70f, 0.70f, 1.0f}; +static float menu_pen_hfore [4] = {0.0f, 0.0f, 0.0f, 1.0f}; +static float menu_pen_hback [4] = {1.0f, 1.0f, 1.0f, 1.0f}; +#endif /* -- PRIVATE FUNCTIONS ---------------------------------------------------- */ /* - * Private static function to find a menu entry by index + * Private function to find a menu entry by index */ static SFG_MenuEntry *fghFindMenuEntry( SFG_Menu* menu, int index ) { SFG_MenuEntry *entry; int i = 1; - for( entry = menu->Entries.First; entry; entry = entry->Node.Next) + for( entry = (SFG_MenuEntry *)menu->Entries.First; entry; entry = (SFG_MenuEntry *)entry->Node.Next) { if (i == index) break; @@ -73,7 +120,7 @@ static SFG_MenuEntry *fghFindMenuEntry( SFG_Menu* menu, int index ) } /* - * Private static function to check for the current menu/sub menu activity state + * Private function to check for the current menu/sub menu activity state */ static GLboolean fghCheckMenuStatus( SFG_Window* window, SFG_Menu* menu ) { @@ -83,12 +130,9 @@ static GLboolean fghCheckMenuStatus( SFG_Window* window, SFG_Menu* menu ) /* * First of all check any of the active sub menus... */ - for( menuEntry = menu->Entries.First; menuEntry; - menuEntry = menuEntry->Node.Next ) + 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 != NULL && menuEntry->IsActive == TRUE ) { /* @@ -96,7 +140,14 @@ static GLboolean fghCheckMenuStatus( SFG_Window* window, SFG_Menu* menu ) * that it caught the mouse cursor and we do not need to regenerate * the activity list, and so our parents do... */ - if( fghCheckMenuStatus( window, menuEntry->SubMenu ) == TRUE ) + 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 = TRUE ; + if ( return_status == TRUE ) return( TRUE ); } } @@ -104,29 +155,28 @@ static GLboolean fghCheckMenuStatus( SFG_Window* window, SFG_Menu* menu ) /* * That much about our sub menus, let's get to checking the current menu: */ - x = window->State.MouseX - menu->X; - y = window->State.MouseY - menu->Y; + x = window->State.MouseX; + y = window->State.MouseY; - /* - * Mark all menu entries inactive... - */ - for( menuEntry = menu->Entries.First; menuEntry; - menuEntry = menuEntry->Node.Next ) + for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry; + menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next ) { menuEntry->IsActive = FALSE; } + menu->IsActive = FALSE; /* * Check if the mouse cursor is contained within the current menu box */ - if( x >= 0 && x < menu->Width && y >= 0 && y < menu->Height ) + if( ( x >= FREEGLUT_MENU_BORDER ) && + ( x < menu->Width - FREEGLUT_MENU_BORDER ) && + ( y >= FREEGLUT_MENU_BORDER ) && + ( y < menu->Height - FREEGLUT_MENU_BORDER ) && + ( window == menu->Window ) ) { - /* - * Calculation of the highlighted menu item is easy enough now: - */ - int menuID = y / FREEGLUT_MENU_HEIGHT; + int menuID = ( y - FREEGLUT_MENU_BORDER ) / FREEGLUT_MENU_HEIGHT ; /* * The mouse cursor is somewhere over our box, check it out. @@ -134,15 +184,21 @@ static GLboolean fghCheckMenuStatus( SFG_Window* window, SFG_Menu* menu ) menuEntry = fghFindMenuEntry( menu, menuID + 1 ); assert( menuEntry != NULL ); - /* - * Mark the menu as active... - */ menuEntry->IsActive = TRUE; menuEntry->Ordinal = menuID; /* - * Don't forget about marking the current menu as active, too: + * 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 != NULL ) + fgDeactivateSubMenu ( menu->ActiveEntry ) ; + } + + menu->ActiveEntry = menuEntry ; menu->IsActive = TRUE; /* @@ -152,30 +208,42 @@ static GLboolean fghCheckMenuStatus( SFG_Window* window, SFG_Menu* menu ) */ if( menuEntry->SubMenu != NULL ) { - /* - * Set up the initial menu position now... - */ + if ( ! menuEntry->SubMenu->IsActive ) + { + SFG_Window *current_window = fgStructure.Window ; + + /* + * Set up the initial menu position now... + */ - menuEntry->SubMenu->X = menu->X + menu->Width ; - menuEntry->SubMenu->Y = menu->Y + menuEntry->Ordinal * FREEGLUT_MENU_HEIGHT ; + menuEntry->SubMenu->IsActive = TRUE ; - /* - * Make sure the submenu stays within the window - */ - if ( menuEntry->SubMenu->X + menuEntry->SubMenu->Width > glutGet ( GLUT_WINDOW_WIDTH ) ) - { - menuEntry->SubMenu->X = menu->X - menuEntry->SubMenu->Width ; - if ( menuEntry->SubMenu->X < 0 ) - menuEntry->SubMenu->X = glutGet ( GLUT_WINDOW_WIDTH ) - menuEntry->SubMenu->Width ; + /* + * 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 ) ; } - /* - * ...then check the submenu's state: - */ fghCheckMenuStatus( window, menuEntry->SubMenu ); /* - * Even if the submenu turned up inactive, activate it because its parent entry is active + * Activate it because its parent entry is active */ menuEntry->SubMenu->IsActive = TRUE ; } @@ -199,32 +267,45 @@ 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... */ - glColor4f( 0.0f, 0.0f, 0.0f, 1.0f ); - glBegin( GL_QUADS ); - glVertex2i( menu->X , menu->Y - 1 ); - glVertex2i( menu->X + menu->Width, menu->Y - 1 ); - glVertex2i( menu->X + menu->Width, menu->Y + 4 + menu->Height ); - glVertex2i( menu->X , menu->Y + 4 + menu->Height ); + glColor4f( 1.0f, 1.0f, 1.0f, 1.0f ); /* a non-black dark version of the below. */ + 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(); - glColor4f( 0.3f, 0.4f, 0.5f, 1.0f ); + glColor4f( 0.5f, 0.5f, 0.5f, 1.0f ); /* a non-black dark version of the below. */ + 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( menu->X - 2 , menu->Y + 1 ); - glVertex2i( menu->X - 2 + menu->Width, menu->Y + 1 ); - glVertex2i( menu->X - 2 + menu->Width, menu->Y + 2 + menu->Height ); - glVertex2i( menu->X - 2 , menu->Y + 2 + menu->Height ); + 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 = menu->Entries.First; menuEntry; - menuEntry = menuEntry->Node.Next ) + for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry; + menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next ) { /* * Has the menu been marked as active, maybe? @@ -241,12 +322,12 @@ static void fghDisplayMenuBox( SFG_Menu* menu ) /* * So have the highlight drawn... */ - glColor4f( 0.2f, 0.3f, 0.4f, 1.0f ); + glColor4fv ( menu_pen_hback ) ; glBegin( GL_QUADS ); - glVertex2i( menu->X - 2 , menu->Y + (menuID + 0)*FREEGLUT_MENU_HEIGHT + 1 ); - glVertex2i( menu->X - 2 + menu->Width, menu->Y + (menuID + 0)*FREEGLUT_MENU_HEIGHT + 1 ); - glVertex2i( menu->X - 2 + menu->Width, menu->Y + (menuID + 1)*FREEGLUT_MENU_HEIGHT + 2 ); - glVertex2i( menu->X - 2 , menu->Y + (menuID + 1)*FREEGLUT_MENU_HEIGHT + 2 ); + glVertex2i( FREEGLUT_MENU_BORDER, (menuID + 0)*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER ); + glVertex2i( menu->Width-FREEGLUT_MENU_BORDER, (menuID + 0)*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER ); + glVertex2i( menu->Width-FREEGLUT_MENU_BORDER, (menuID + 1)*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER ); + glVertex2i( FREEGLUT_MENU_BORDER, (menuID + 1)*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER ); glEnd(); } } @@ -254,17 +335,24 @@ static void fghDisplayMenuBox( SFG_Menu* menu ) /* * Print the menu entries now... */ - glColor4f( 1, 1, 1, 1 ); - for( menuEntry = menu->Entries.First, i=0; menuEntry; - menuEntry = menuEntry->Node.Next, ++i ) + 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... */ glRasterPos2i( - menu->X + FREEGLUT_MENU_BORDER, - menu->Y + (i + 1)*FREEGLUT_MENU_HEIGHT + 2 * FREEGLUT_MENU_BORDER, + (i + 1)*FREEGLUT_MENU_HEIGHT-(int)(FREEGLUT_MENU_HEIGHT*0.3 - FREEGLUT_MENU_BORDER ) /* Try to center the text - JCJ 31 July 2003*/ ); /* @@ -277,33 +365,28 @@ static void fghDisplayMenuBox( SFG_Menu* menu ) */ if ( menuEntry->SubMenu != NULL ) { - GLubyte arrow_char [] = { 0, 0, 32, 48, 56, 60, 62, 63, 62, 60, 56, 48, 32, 0, 0 } ; - int width = glutBitmapWidth ( FREEGLUT_MENU_FONT, ' ' ) ; - - glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); - - /* - * Set up the pixel unpacking ways - */ - glPixelStorei( GL_UNPACK_SWAP_BYTES, GL_FALSE ); - glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE ); - glPixelStorei( GL_UNPACK_ROW_LENGTH, 0 ); - glPixelStorei( GL_UNPACK_SKIP_ROWS, 0 ); - glPixelStorei( GL_UNPACK_SKIP_PIXELS, 0 ); - glPixelStorei( GL_UNPACK_ALIGNMENT, 1 ); - - glRasterPos2i ( menu->X + menu->Width - 2 - width, - menu->Y + (i + 1)*FREEGLUT_MENU_HEIGHT ) ; - glBitmap ( width, FREEGLUT_MENU_HEIGHT, 0, 0, 0.0, 0.0, arrow_char ) ; - glPopClientAttrib(); + int width = glutBitmapWidth ( FREEGLUT_MENU_FONT, '_' ) ; + int x_base = menu->Width - 2 - width; + int y_base = i*FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER; + glBegin( GL_TRIANGLES ); + glVertex2i( x_base, y_base + 2*FREEGLUT_MENU_BORDER); + glVertex2i( menu->Width - 2, y_base + (FREEGLUT_MENU_HEIGHT + FREEGLUT_MENU_BORDER) / 2 ); + glVertex2i( x_base, y_base + FREEGLUT_MENU_HEIGHT - FREEGLUT_MENU_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 = menu->Entries.First; menuEntry; - menuEntry = menuEntry->Node.Next ) + for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry; + menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next ) { /* * Is that an active sub menu by any case? @@ -313,12 +396,31 @@ static void fghDisplayMenuBox( SFG_Menu* menu ) /* * Yeah, indeed. Have it redrawn now: */ + fgSetWindow ( menuEntry->SubMenu->Window ) ; fghDisplayMenuBox( menuEntry->SubMenu ); + fgSetWindow ( menu->Window ) ; } } } /* + * Private static function to set the parent window of a submenu and all of its submenus + */ +static void fghSetSubmenuParentWindow ( SFG_Window *window, SFG_Menu *menu ) +{ + SFG_MenuEntry *menuEntry ; + + menu->ParentWindow = window ; + + for ( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry; menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next ) + { + if ( menuEntry->SubMenu != NULL ) + fghSetSubmenuParentWindow ( window, menuEntry->SubMenu ) ; + } +} + + +/* * Displays the currently active menu for the current window */ void fgDisplayMenu( void ) @@ -337,9 +439,12 @@ void fgDisplayMenu( void ) menu = window->ActiveMenu; /* - * Did we find an active window? + * Did we find an active menu? */ freeglut_return_if_fail( menu != NULL ); + + fgSetWindow ( menu->Window ) ; + /* * Prepare the OpenGL state to do the rendering first: */ @@ -388,6 +493,13 @@ void fgDisplayMenu( void ) glPopMatrix(); glMatrixMode( GL_MODELVIEW ); glPopMatrix(); + + glutSwapBuffers () ; + + /* + * Restore the current window + */ + fgSetWindow ( window ) ; } /* @@ -395,8 +507,6 @@ void fgDisplayMenu( void ) */ void fgActivateMenu( SFG_Window* window, int button ) { - int x, y; - /* * We'll be referencing this menu a lot, so remember its address: */ @@ -407,25 +517,28 @@ void fgActivateMenu( SFG_Window* window, int button ) */ window->ActiveMenu = menu; menu->IsActive = TRUE ; - - /* - * Grab the mouse cursor position respective to the current window - */ - x = window->State.MouseX; - y = window->State.MouseY; + fgState.ActiveMenus ++ ; /* * Set up the initial menu position now: */ - menu->X = x ; - menu->Y = 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 > 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 ; - if( x > ( glutGet( GLUT_WINDOW_WIDTH ) - menu->Width ) ) - menu->X = glutGet( GLUT_WINDOW_WIDTH ) - menu->Width; - if( y > ( glutGet( GLUT_WINDOW_HEIGHT ) - menu->Height) ) - menu->Y = glutGet( GLUT_WINDOW_HEIGHT ) - menu->Height; } /* @@ -454,7 +567,7 @@ void fgExecuteMenuCallback( SFG_Menu* menu ) /* * First of all check any of the active sub menus... */ - for( menuEntry = menu->Entries.First; menuEntry; menuEntry = menuEntry->Node.Next) + for( menuEntry = (SFG_MenuEntry *)menu->Entries.First; menuEntry; menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next) { /* * Is this menu entry active? @@ -493,10 +606,13 @@ void fgExecuteMenuCallback( SFG_Menu* menu ) */ 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? @@ -504,10 +620,69 @@ void fgDeactivateMenu( SFG_Window *window ) freeglut_return_if_fail( menu != NULL ); /* + * Hide the present menu's window + */ + fgSetWindow ( menu->Window ) ; + glutHideWindow () ; + + /* * Forget about having that menu active anymore, now: */ - window->ActiveMenu = NULL; + menu->Window->ActiveMenu = NULL ; + menu->ParentWindow->ActiveMenu = NULL ; menu->IsActive = 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 != NULL ) + fgDeactivateSubMenu ( menuEntry ) ; + } + + fgSetWindow ( current_window ) ; +} + +/* + * 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 = 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 != NULL ) + fgDeactivateSubMenu ( subMenuIter ) ; + } + + fgSetWindow ( current_window ) ; } /* @@ -526,8 +701,8 @@ void fghCalculateMenuBoxSize( void ) /* * The menu's box size depends on the menu entries: */ - for( menuEntry = fgStructure.Menu->Entries.First; menuEntry; - menuEntry = menuEntry->Node.Next) + for( menuEntry = (SFG_MenuEntry *)fgStructure.Menu->Entries.First; menuEntry; + menuEntry = (SFG_MenuEntry *)menuEntry->Node.Next) { /* * Update the menu entry's width value @@ -535,6 +710,13 @@ void fghCalculateMenuBoxSize( void ) menuEntry->Width = glutBitmapLength( FREEGLUT_MENU_FONT, menuEntry->Text ); /* + * If the entry is a submenu, then it needs to be wider to accomodate the arrow. JCJ 31 July 2003 + */ + + if (menuEntry->SubMenu != NULL) + menuEntry->Width += glutBitmapLength( FREEGLUT_MENU_FONT, "_" ); + + /* * Check if it's the biggest we've found */ if( menuEntry->Width > width ) @@ -546,8 +728,8 @@ void fghCalculateMenuBoxSize( void ) /* * Store the menu's box size now: */ - fgStructure.Menu->Height = height; - fgStructure.Menu->Width = width + 2 * FREEGLUT_MENU_BORDER ; + fgStructure.Menu->Height = height + 2 * FREEGLUT_MENU_BORDER ; + fgStructure.Menu->Width = width + 4 * FREEGLUT_MENU_BORDER ; } @@ -585,21 +767,8 @@ void FGAPIENTRY glutDestroyMenu( int menuID ) int FGAPIENTRY glutGetMenu( void ) { freeglut_assert_ready; - - /* - * Is there a current menu set? - */ if( fgStructure.Menu != NULL ) - { - /* - * Yes, there is indeed... - */ return( fgStructure.Menu->ID ); - } - - /* - * No, there is no current menu at all - */ return( 0 ); } @@ -610,11 +779,8 @@ void FGAPIENTRY glutSetMenu( int menuID ) { SFG_Menu* menu = fgMenuByID( menuID ); - freeglut_assert_ready; freeglut_return_if_fail( menu != NULL ); - - /* - * The current menu pointer is stored in fgStructure.Menu - */ + freeglut_assert_ready; + freeglut_return_if_fail( menu != NULL ); fgStructure.Menu = menu; } @@ -623,16 +789,10 @@ void FGAPIENTRY glutSetMenu( int menuID ) */ void FGAPIENTRY glutAddMenuEntry( const char* label, int value ) { - SFG_MenuEntry* menuEntry = calloc( sizeof(SFG_MenuEntry), 1 ); + SFG_MenuEntry* menuEntry = (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 ); - /* - * Make sure there is a current menu set - */ - freeglut_assert_ready; freeglut_return_if_fail( fgStructure.Menu != NULL ); - - /* - * Fill in the appropriate values... - */ + freeglut_assert_ready; + freeglut_return_if_fail( fgStructure.Menu != NULL ); menuEntry->Text = strdup( label ); menuEntry->ID = value; @@ -640,10 +800,6 @@ void FGAPIENTRY glutAddMenuEntry( const char* label, int value ) * Have the new menu entry attached to the current menu */ fgListAppend( &fgStructure.Menu->Entries, &menuEntry->Node ); - - /* - * Update the menu's dimensions now - */ fghCalculateMenuBoxSize(); } @@ -652,31 +808,22 @@ void FGAPIENTRY glutAddMenuEntry( const char* label, int value ) */ void FGAPIENTRY glutAddSubMenu( const char* label, int subMenuID ) { - SFG_MenuEntry* menuEntry = calloc( sizeof(SFG_MenuEntry), 1 ); + SFG_MenuEntry* menuEntry = (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 ); SFG_Menu* subMenu = fgMenuByID( subMenuID ); - /* - * Make sure there is a current menu and the sub menu - * we want to attach actually exists... - */ - freeglut_assert_ready; freeglut_return_if_fail( fgStructure.Menu != NULL ); + freeglut_assert_ready; + freeglut_return_if_fail( fgStructure.Menu != NULL ); freeglut_return_if_fail( subMenu != NULL ); - /* - * Fill in the appropriate values - */ menuEntry->Text = strdup( label ); menuEntry->SubMenu = subMenu; menuEntry->ID = -1; /* - * Have the new menu entry attached to the current menu + * Make the submenu's parent window be the menu's parent window */ + fghSetSubmenuParentWindow ( fgStructure.Menu->ParentWindow, subMenu ) ; fgListAppend( &fgStructure.Menu->Entries, &menuEntry->Node ); - - /* - * Update the menu's dimensions now - */ fghCalculateMenuBoxSize(); } @@ -687,19 +834,9 @@ void FGAPIENTRY glutChangeToMenuEntry( int item, const char* label, int value ) { SFG_MenuEntry* menuEntry = NULL; - /* - * Make sure there is a current menu set... - */ - freeglut_assert_ready; freeglut_return_if_fail( fgStructure.Menu != NULL ); - - /* - * Get n-th menu entry in the current menu, starting from one: - */ + freeglut_assert_ready; + freeglut_return_if_fail( fgStructure.Menu != NULL ); menuEntry = fghFindMenuEntry( fgStructure.Menu, item ); - - /* - * Make sure the menu entry exists - */ freeglut_return_if_fail( menuEntry != NULL ); /* @@ -712,9 +849,6 @@ void FGAPIENTRY glutChangeToMenuEntry( int item, const char* label, int value ) menuEntry->ID = value; menuEntry->SubMenu = NULL; - /* - * Update the menu's dimensions now - */ fghCalculateMenuBoxSize(); } @@ -726,35 +860,22 @@ void FGAPIENTRY glutChangeToSubMenu( int item, const char* label, int subMenuID SFG_Menu* subMenu = fgMenuByID( subMenuID ); SFG_MenuEntry* menuEntry = NULL; - /* - * Make sure there is a current menu set and the sub menu exists... - */ - freeglut_assert_ready; freeglut_return_if_fail( fgStructure.Menu != NULL ); - freeglut_return_if_fail( subMenu != NULL ); - - /* - * Get n-th menu entry in the current menu, starting from one: - */ + freeglut_assert_ready; + freeglut_return_if_fail( fgStructure.Menu ); + freeglut_return_if_fail( subMenu ); menuEntry = fghFindMenuEntry( fgStructure.Menu, item ); - - /* - * Make sure the menu entry exists - */ - freeglut_return_if_fail( menuEntry != NULL ); + freeglut_return_if_fail( menuEntry ); /* * We want it to become a sub menu entry, so: */ - if( menuEntry->Text != NULL ) + if( menuEntry->Text ) free( menuEntry->Text ); menuEntry->Text = strdup( label ); menuEntry->SubMenu = subMenu; menuEntry->ID = -1; - /* - * Update the menu's dimensions now - */ fghCalculateMenuBoxSize(); } @@ -765,36 +886,13 @@ void FGAPIENTRY glutRemoveMenuItem( int item ) { SFG_MenuEntry* menuEntry; - /* - * Make sure there is a current menu set - */ - freeglut_assert_ready; freeglut_return_if_fail( fgStructure.Menu != NULL ); - - /* - * Get n-th menu entry in the current menu, starting from one: - */ + freeglut_assert_ready; + freeglut_return_if_fail( fgStructure.Menu ); menuEntry = fghFindMenuEntry( fgStructure.Menu, item ); - - /* - * Make sure the menu entry exists - */ - freeglut_return_if_fail( menuEntry != NULL ); - - /* - * Removing a menu entry is quite simple... - */ + freeglut_return_if_fail( menuEntry ); fgListRemove( &fgStructure.Menu->Entries, &menuEntry->Node ); - - /* - * Free the entry label string, too - */ free( menuEntry->Text ); - free( menuEntry ); - - /* - * Update the menu's dimensions now - */ fghCalculateMenuBoxSize(); } @@ -804,21 +902,16 @@ void FGAPIENTRY glutRemoveMenuItem( int item ) void FGAPIENTRY glutAttachMenu( int button ) { freeglut_assert_ready; + freeglut_return_if_fail( fgStructure.Window ); + freeglut_return_if_fail( fgStructure.Menu ); + freeglut_return_if_fail( button >= 0 ); + freeglut_return_if_fail( button < FREEGLUT_MAX_MENUS ); + fgStructure.Window->Menu[ button ] = fgStructure.Menu; /* - * There must be a current window and a current menu set: - */ - freeglut_return_if_fail( fgStructure.Window != NULL || fgStructure.Menu != NULL ); - - /* - * Make sure the button value is valid (0, 1 or 2, see freeglut.h) - */ - freeglut_return_if_fail( button == GLUT_LEFT_BUTTON || button == GLUT_MIDDLE_BUTTON || button == GLUT_RIGHT_BUTTON ); - - /* - * It is safe now to attach the menu + * Make the parent window of the menu (and all submenus) the current window */ - fgStructure.Window->Menu[ button ] = fgStructure.Menu; + fghSetSubmenuParentWindow ( fgStructure.Window, fgStructure.Menu ) ; } /* @@ -827,20 +920,10 @@ void FGAPIENTRY glutAttachMenu( int button ) void FGAPIENTRY glutDetachMenu( int button ) { freeglut_assert_ready; - - /* - * There must be a current window set: - */ - freeglut_return_if_fail( fgStructure.Window != NULL ); - - /* - * Make sure the button value is valid (0, 1 or 2, see freeglut.h) - */ - freeglut_return_if_fail( button != 0 && button != 1 && button != 2 ); - - /* - * It is safe now to detach the menu - */ + freeglut_return_if_fail( fgStructure.Window ); + freeglut_return_if_fail( fgStructure.Menu ); + freeglut_return_if_fail( button >= 0 ); + freeglut_return_if_fail( button < FREEGLUT_MAX_MENUS ); fgStructure.Window->Menu[ button ] = NULL; }