diff options
Diffstat (limited to 'ncurses-5.2/menu/m_driver.c')
| -rw-r--r-- | ncurses-5.2/menu/m_driver.c | 540 |
1 files changed, 0 insertions, 540 deletions
diff --git a/ncurses-5.2/menu/m_driver.c b/ncurses-5.2/menu/m_driver.c deleted file mode 100644 index e796728..0000000 --- a/ncurses-5.2/menu/m_driver.c +++ /dev/null @@ -1,540 +0,0 @@ -/**************************************************************************** - * Copyright (c) 1998 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 * - * "Software"), to deal in the Software without restriction, including * - * without limitation the rights to use, copy, modify, merge, publish, * - * distribute, distribute with modifications, sublicense, and/or sell * - * copies of the Software, and to permit persons to whom the Software is * - * furnished to do so, subject to the following conditions: * - * * - * The above copyright notice and this permission notice shall be included * - * in all copies or substantial portions of the Software. * - * * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * - * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * - * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * - * * - * Except as contained in this notice, the name(s) of the above copyright * - * holders shall not be used in advertising or otherwise to promote the * - * sale, use or other dealings in this Software without prior written * - * authorization. * - ****************************************************************************/ - -/**************************************************************************** - * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 * - ****************************************************************************/ - -/*************************************************************************** -* Module m_driver * -* Central dispatching routine * -***************************************************************************/ - -#include "menu.priv.h" - -MODULE_ID("$Id$") - -/* Macros */ - -/* Remove the last character from the match pattern buffer */ -#define Remove_Character_From_Pattern(menu) \ - (menu)->pattern[--((menu)->pindex)] = '\0' - -/* Add a new character to the match pattern buffer */ -#define Add_Character_To_Pattern(menu,ch) \ - { (menu)->pattern[((menu)->pindex)++] = (ch);\ - (menu)->pattern[(menu)->pindex] = '\0'; } - -/*--------------------------------------------------------------------------- -| Facility : libnmenu -| Function : static bool Is_Sub_String( -| bool IgnoreCaseFlag, -| const char *part, -| const char *string) -| -| Description : Checks whether or not part is a substring of string. -| -| Return Values : TRUE - if it is a substring -| FALSE - if it is not a substring -+--------------------------------------------------------------------------*/ -static bool Is_Sub_String( - bool IgnoreCaseFlag, - const char *part, - const char *string - ) -{ - assert( part && string ); - if ( IgnoreCaseFlag ) - { - while(*string && *part) - { - if (toupper(*string++)!=toupper(*part)) break; - part++; - } - } - else - { - while( *string && *part ) - if (*part != *string++) break; - part++; - } - return ( (*part) ? FALSE : TRUE ); -} - -/*--------------------------------------------------------------------------- -| Facility : libnmenu -| Function : int _nc_Match_Next_Character_In_Item_Name( -| MENU *menu, -| int ch, -| ITEM **item) -| -| Description : This internal routine is called for a menu positioned -| at an item with three different classes of characters: -| - a printable character; the character is added to -| the current pattern and the next item matching -| this pattern is searched. -| - NUL; the pattern stays as it is and the next item -| matching the pattern is searched -| - BS; the pattern stays as it is and the previous -| item matching the pattern is searched -| -| The item parameter contains on call a pointer to -| the item where the search starts. On return - if -| a match was found - it contains a pointer to the -| matching item. -| -| Return Values : E_OK - an item matching the pattern was found -| E_NO_MATCH - nothing found -+--------------------------------------------------------------------------*/ -int _nc_Match_Next_Character_In_Item_Name(MENU *menu, int ch, ITEM **item) -{ - bool found = FALSE, passed = FALSE; - int idx, last; - - assert( menu && item && *item); - idx = (*item)->index; - - if (ch && ch!=BS) - { - /* if we become to long, we need no further checking : there can't be - a match ! */ - if ((menu->pindex+1) > menu->namelen) - RETURN(E_NO_MATCH); - - Add_Character_To_Pattern(menu,ch); - /* we artificially position one item back, because in the do...while - loop we start with the next item. This means, that with a new - pattern search we always start the scan with the actual item. If - we do a NEXT_PATTERN oder PREV_PATTERN search, we start with the - one after or before the actual item. */ - if (--idx < 0) - idx = menu->nitems-1; - } - - last = idx; /* this closes the cycle */ - - do{ - if (ch==BS) - { /* we have to go backward */ - if (--idx < 0) - idx = menu->nitems-1; - } - else - { /* otherwise we always go forward */ - if (++idx >= menu->nitems) - idx = 0; - } - if (Is_Sub_String((menu->opt & O_IGNORECASE) != 0, - menu->pattern, - menu->items[idx]->name.str) - ) - found = TRUE; - else - passed = TRUE; - } while (!found && (idx != last)); - - if (found) - { - if (!((idx==(*item)->index) && passed)) - { - *item = menu->items[idx]; - RETURN(E_OK); - } - /* This point is reached, if we fully cycled through the item list - and the only match we found is the starting item. With a NEXT_PATTERN - or PREV_PATTERN scan this means, that there was no additional match. - If we searched with an expanded new pattern, we should never reach - this point, because if the expanded pattern matches also the actual - item we will find it in the first attempt (passed==FALSE) and we - will never cycle through the whole item array. - */ - assert( ch==0 || ch==BS ); - } - else - { - if (ch && ch!=BS && menu->pindex>0) - { - /* if we had no match with a new pattern, we have to restore it */ - Remove_Character_From_Pattern(menu); - } - } - RETURN(E_NO_MATCH); -} - -/*--------------------------------------------------------------------------- -| Facility : libnmenu -| Function : int menu_driver(MENU *menu, int c) -| -| Description : Central dispatcher for the menu. Translates the logical -| request 'c' into a menu action. -| -| Return Values : E_OK - success -| E_BAD_ARGUMENT - invalid menu pointer -| E_BAD_STATE - menu is in user hook routine -| E_NOT_POSTED - menu is not posted -+--------------------------------------------------------------------------*/ -int menu_driver(MENU * menu, int c) -{ -#define NAVIGATE(dir) \ - if (!item->dir)\ - result = E_REQUEST_DENIED;\ - else\ - item = item->dir - - int result = E_OK; - ITEM *item; - int my_top_row, rdiff; - - if (!menu) - RETURN(E_BAD_ARGUMENT); - - if ( menu->status & _IN_DRIVER ) - RETURN(E_BAD_STATE); - if ( !( menu->status & _POSTED ) ) - RETURN(E_NOT_POSTED); - - item = menu->curitem; - - my_top_row = menu->toprow; - assert(item); - - if ((c > KEY_MAX) && (c<=MAX_MENU_COMMAND)) - { - if (!((c==REQ_BACK_PATTERN) - || (c==REQ_NEXT_MATCH) || (c==REQ_PREV_MATCH))) - { - assert( menu->pattern ); - Reset_Pattern(menu); - } - - switch(c) - { - case REQ_LEFT_ITEM: - /*=================*/ - NAVIGATE(left); - break; - - case REQ_RIGHT_ITEM: - /*==================*/ - NAVIGATE(right); - break; - - case REQ_UP_ITEM: - /*===============*/ - NAVIGATE(up); - break; - - case REQ_DOWN_ITEM: - /*=================*/ - NAVIGATE(down); - break; - - case REQ_SCR_ULINE: - /*=================*/ - if (my_top_row == 0 || !(item->up)) - result = E_REQUEST_DENIED; - else - { - --my_top_row; - item = item->up; - } - break; - - case REQ_SCR_DLINE: - /*=================*/ - if ((my_top_row + menu->arows >= menu->rows) || !(item->down)) - { - /* only if the menu has less items than rows, we can deny the - request. Otherwise the epilogue of this routine adjusts the - top row if necessary */ - result = E_REQUEST_DENIED; - } - else { - my_top_row++; - item = item->down; - } - break; - - case REQ_SCR_DPAGE: - /*=================*/ - rdiff = menu->rows - (menu->arows + my_top_row); - if (rdiff > menu->arows) - rdiff = menu->arows; - if (rdiff<=0) - result = E_REQUEST_DENIED; - else - { - my_top_row += rdiff; - while(rdiff-- > 0 && item!=(ITEM*)0) - item = item->down; - } - break; - - case REQ_SCR_UPAGE: - /*=================*/ - rdiff = (menu->arows < my_top_row) ? menu->arows : my_top_row; - if (rdiff<=0) - result = E_REQUEST_DENIED; - else - { - my_top_row -= rdiff; - while(rdiff-- && item!=(ITEM*)0) - item = item->up; - } - break; - - case REQ_FIRST_ITEM: - /*==================*/ - item = menu->items[0]; - break; - - case REQ_LAST_ITEM: - /*=================*/ - item = menu->items[menu->nitems-1]; - break; - - case REQ_NEXT_ITEM: - /*=================*/ - if ((item->index+1)>=menu->nitems) - { - if (menu->opt & O_NONCYCLIC) - result = E_REQUEST_DENIED; - else - item = menu->items[0]; - } - else - item = menu->items[item->index + 1]; - break; - - case REQ_PREV_ITEM: - /*=================*/ - if (item->index<=0) - { - if (menu->opt & O_NONCYCLIC) - result = E_REQUEST_DENIED; - else - item = menu->items[menu->nitems-1]; - } - else - item = menu->items[item->index - 1]; - break; - - case REQ_TOGGLE_ITEM: - /*===================*/ - if (menu->opt & O_ONEVALUE) - { - result = E_REQUEST_DENIED; - } - else - { - if (menu->curitem->opt & O_SELECTABLE) - { - menu->curitem->value = !menu->curitem->value; - Move_And_Post_Item(menu,menu->curitem); - _nc_Show_Menu(menu); - } - else - result = E_NOT_SELECTABLE; - } - break; - - case REQ_CLEAR_PATTERN: - /*=====================*/ - /* already cleared in prologue */ - break; - - case REQ_BACK_PATTERN: - /*====================*/ - if (menu->pindex>0) - { - assert(menu->pattern); - Remove_Character_From_Pattern(menu); - pos_menu_cursor( menu ); - } - else - result = E_REQUEST_DENIED; - break; - - case REQ_NEXT_MATCH: - /*==================*/ - assert(menu->pattern); - if (menu->pattern[0]) - result = _nc_Match_Next_Character_In_Item_Name(menu,0,&item); - else - { - if ((item->index+1)<menu->nitems) - item=menu->items[item->index+1]; - else - { - if (menu->opt & O_NONCYCLIC) - result = E_REQUEST_DENIED; - else - item = menu->items[0]; - } - } - break; - - case REQ_PREV_MATCH: - /*==================*/ - assert(menu->pattern); - if (menu->pattern[0]) - result = _nc_Match_Next_Character_In_Item_Name(menu,BS,&item); - else - { - if (item->index) - item = menu->items[item->index-1]; - else - { - if (menu->opt & O_NONCYCLIC) - result = E_REQUEST_DENIED; - else - item = menu->items[menu->nitems-1]; - } - } - break; - - default: - /*======*/ - result = E_UNKNOWN_COMMAND; - break; - } - } - else - { /* not a command */ - if ( !(c & ~((int)MAX_REGULAR_CHARACTER)) && isprint(c) ) - result = _nc_Match_Next_Character_In_Item_Name( menu, c, &item ); -#ifdef NCURSES_MOUSE_VERSION - else if (KEY_MOUSE == c) - { - MEVENT event; - WINDOW* uwin = Get_Menu_UserWin(menu); - - getmouse(&event); - if ((event.bstate & (BUTTON1_CLICKED | - BUTTON1_DOUBLE_CLICKED | - BUTTON1_TRIPLE_CLICKED )) - && wenclose(uwin,event.y, event.x)) - { /* we react only if the click was in the userwin, that means - * inside the menu display area or at the decoration window. - */ - WINDOW* sub = Get_Menu_Window(menu); - int ry = event.y, rx = event.x; /* screen coordinates */ - - result = E_REQUEST_DENIED; - if (mouse_trafo(&ry,&rx,FALSE)) - { /* rx, ry are now "curses" coordinates */ - if (ry < sub->_begy) - { /* we clicked above the display region; this is - * interpreted as "scroll up" request - */ - if (event.bstate & BUTTON1_CLICKED) - result = menu_driver(menu,REQ_SCR_ULINE); - else if (event.bstate & BUTTON1_DOUBLE_CLICKED) - result = menu_driver(menu,REQ_SCR_UPAGE); - else if (event.bstate & BUTTON1_TRIPLE_CLICKED) - result = menu_driver(menu,REQ_FIRST_ITEM); - RETURN(result); - } - else if (ry >= sub->_begy + sub->_maxy) - { /* we clicked below the display region; this is - * interpreted as "scroll down" request - */ - if (event.bstate & BUTTON1_CLICKED) - result = menu_driver(menu,REQ_SCR_DLINE); - else if (event.bstate & BUTTON1_DOUBLE_CLICKED) - result = menu_driver(menu,REQ_SCR_DPAGE); - else if (event.bstate & BUTTON1_TRIPLE_CLICKED) - result = menu_driver(menu,REQ_LAST_ITEM); - RETURN(result); - } - else if (wenclose(sub,event.y,event.x)) - { /* Inside the area we try to find the hit item */ - int i,x,y,err; - ry = event.y; rx = event.x; - if (wmouse_trafo(sub,&ry,&rx,FALSE)) - { - for(i=0;i<menu->nitems;i++) - { - err = _nc_menu_cursor_pos(menu,menu->items[i], - &y, &x); - if (E_OK==err) - { - if ((ry==y) && - (rx>=x) && - (rx < x + menu->itemlen)) - { - item = menu->items[i]; - result = E_OK; - break; - } - } - } - if (E_OK==result) - { /* We found an item, now we can handle the click. - * A single click just positions the menu cursor - * to the clicked item. A double click toggles - * the item. - */ - if (event.bstate & BUTTON1_DOUBLE_CLICKED) - { - _nc_New_TopRow_and_CurrentItem(menu, - my_top_row, - item); - menu_driver(menu,REQ_TOGGLE_ITEM); - result = E_UNKNOWN_COMMAND; - } - } - } - } - } - } - else - result = E_REQUEST_DENIED; - } -#endif /* NCURSES_MOUSE_VERSION */ - else - result = E_UNKNOWN_COMMAND; - } - - if (E_OK==result) - { - /* Adjust the top row if it turns out that the current item unfortunately - doesn't appear in the menu window */ - if ( item->y < my_top_row ) - my_top_row = item->y; - else if ( item->y >= (my_top_row + menu->arows) ) - my_top_row = item->y - menu->arows + 1; - - _nc_New_TopRow_and_CurrentItem( menu, my_top_row, item ); - - } - - RETURN(result); -} - -/* m_driver.c ends here */ |