X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=menu%2Fm_global.c;h=489987febaa161c3e2de483c06221fbf9af2fd99;hp=d85f207ed57e44e67340b699f786a341bef73ad8;hb=7503e8d82292a2a0a4d8bb55bdf3f8a203159f68;hpb=b6d0d9ad9e372e856f01a4c283cf784a15993903 diff --git a/menu/m_global.c b/menu/m_global.c index d85f207e..489987fe 100644 --- a/menu/m_global.c +++ b/menu/m_global.c @@ -1,5 +1,6 @@ /**************************************************************************** - * Copyright (c) 1998-2010,2012 Free Software Foundation, Inc. * + * Copyright 2020 Thomas E. Dickey * + * Copyright 1998-2012,2014 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -37,7 +38,7 @@ #include "menu.priv.h" -MODULE_ID("$Id: m_global.c,v 1.27 2012/06/10 00:09:15 tom Exp $") +MODULE_ID("$Id: m_global.c,v 1.30 2020/02/02 23:34:34 tom Exp $") static char mark[] = "-"; /* *INDENT-OFF* */ @@ -53,7 +54,7 @@ NCURSES_EXPORT_VAR(MENU) _nc_Default_Menu = { 0, /* length of widest description */ 1, /* length of mark */ 1, /* length of one item */ - 1, /* Spacing for descriptor */ + 1, /* Spacing for descriptor */ 1, /* Spacing for columns */ 1, /* Spacing for rows */ (char *)0, /* buffer used to store match chars */ @@ -68,7 +69,7 @@ NCURSES_EXPORT_VAR(MENU) _nc_Default_Menu = { 0, /* Top row of menu */ (chtype)A_REVERSE, /* Attribute for selection */ (chtype)A_NORMAL, /* Attribute for nonselection */ - (chtype)A_UNDERLINE, /* Attribute for inactive */ + (chtype)A_UNDERLINE, /* Attribute for inactive */ ' ', /* Pad character */ (Menu_Hook)0, /* Menu init */ (Menu_Hook)0, /* Menu term */ @@ -77,7 +78,7 @@ NCURSES_EXPORT_VAR(MENU) _nc_Default_Menu = { (void *)0, /* userptr */ mark, /* mark */ ALL_MENU_OPTS, /* options */ - 0 /* status */ + 0 /* status */ }; NCURSES_EXPORT_VAR(ITEM) _nc_Default_Item = { @@ -98,9 +99,9 @@ NCURSES_EXPORT_VAR(ITEM) _nc_Default_Item = { /* *INDENT-ON* */ /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : static void ComputeMaximum_NameDesc_Lenths(MENU *menu) -| +| | Description : Calculates the maximum name and description lengths | of the items connected to the menu | @@ -132,10 +133,10 @@ ComputeMaximum_NameDesc_Lengths(MENU * menu) } /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : static void ResetConnectionInfo(MENU *, ITEM **) -| -| Description : Reset all informations in the menu and the items in +| +| Description : Reset all information in the menu and the items in | the item array that indicates a connection | | Return Values : - @@ -160,7 +161,7 @@ ResetConnectionInfo(MENU * menu, ITEM ** items) } /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : bool _nc_Connect_Items(MENU *menu, ITEM **items) | | Description : Connect the items in the item array to the menu. @@ -218,16 +219,16 @@ _nc_Connect_Items(MENU * menu, ITEM ** items) } } - /* If we fall through to this point, we have to reset all items connection + /* If we fall through to this point, we have to reset all items connection and inform about a reject connection */ ResetConnectionInfo(menu, items); return (FALSE); } /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : void _nc_Disconnect_Items(MENU *menu) -| +| | Description : Disconnect the menus item array from the menu | | Return Values : - @@ -240,9 +241,9 @@ _nc_Disconnect_Items(MENU * menu) } /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : int _nc_Calculate_Text_Width(const TEXT * item) -| +| | Description : Calculate the number of columns for a TEXT. | | Return Values : the width @@ -328,9 +329,9 @@ calculate_actual_width(MENU * menu, bool name) #endif /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : void _nc_Calculate_Item_Length_and_Width(MENU *menu) -| +| | Description : Calculate the length of an item and the width of the | whole menu. | @@ -366,9 +367,9 @@ _nc_Calculate_Item_Length_and_Width(MENU * menu) } /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : void _nc_Link_Item(MENU *menu) -| +| | Description : Statically calculate for every item its four neighbors. | This depends on the orientation of the menu. This | static approach simplifies navigation in the menu a lot. @@ -495,9 +496,9 @@ _nc_Link_Items(MENU * menu) } /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : void _nc_Show_Menu(const MENU* menu) -| +| | Description : Update the window that is associated with the menu | | Return Values : - @@ -530,12 +531,12 @@ _nc_Show_Menu(const MENU * menu) } /*--------------------------------------------------------------------------- -| Facility : libnmenu +| Facility : libnmenu | Function : void _nc_New_TopRow_and_CurrentItem( -| MENU *menu, -| int new_toprow, +| MENU *menu, +| int new_toprow, | ITEM *new_current_item) -| +| | Description : Redisplay the menu so that the given row becomes the | top row and the given item becomes the new current | item. @@ -568,7 +569,9 @@ _nc_New_TopRow_and_CurrentItem( cur_item = menu->curitem; assert(cur_item); - menu->toprow = (short)new_toprow; + menu->toprow = (short)(((menu->rows - menu->frows) >= 0) + ? min(menu->rows - menu->frows, new_toprow) + : 0); menu->curitem = new_current_item; if (mterm_called) @@ -590,7 +593,9 @@ _nc_New_TopRow_and_CurrentItem( } else { /* if we are not posted, this is quite simple */ - menu->toprow = (short)new_toprow; + menu->toprow = (short)(((menu->rows - menu->frows) >= 0) + ? min(menu->rows - menu->frows, new_toprow) + : 0); menu->curitem = new_current_item; } }