Initial import of the ircii-pana-1.1-final source tree.
git-svn-id: svn://svn.code.sf.net/p/bitchx/code/tags/ircii-pana-1.1-final@1 13b04d17-f746-0410-82c6-800466cd88b0
This commit is contained in:
Kevin Easton
343
bx-conf/ds_cell.c
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343
bx-conf/ds_cell.c
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/*
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* Program source is Copyright 1993 Colten Edwards.
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* Central Data Services is granted the right to use this source
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* in thier product known as Quote Menu. They are also granted the right
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* to modify this source in the advent of problems and or new features
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* which they may want to add to the program.
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*/
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#include <stdlib.h>
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#include <ctype.h>
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#include <ncurses.h>
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#ifdef __EMX__
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#include <sys/types.h>
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#endif
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#include "ds_cell.h"
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#include "ds_keys.h"
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#include "func_pr.h"
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/*
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* This routine sets the stage for all menu actions except those that are
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* specific for a menu.
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* Home, PgUp, PgDn, End, Cursor up, Cursor Dn are defined within this source
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*/
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/* Get the current menu item.
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*
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* Save the current position, save the start of the list.
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* if key was not a enter key then
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* Convert character to uppercase
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* While double linked list is not NULL
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* if entered key is equal to stored key value
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* break loop
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* else
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* get next double linked list item
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* set current item equal
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*
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* if double linked list item is equal to NULL
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* restore current item to entry value.
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* return to caller with FALSE { didn't find the a valid key}
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* Set redraw = TRUE and
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* return TRUE to indicate found valid key
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*/
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int get_current(CELL *c) {
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dlistptr x = c->start;
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dlistptr y = c->current;
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if (c->key != ENTER) {
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c->key = toupper(c->key);
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while (x)
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if (c->key == x->datainfo.other) {
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break;
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} else
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x = x->nextlistptr;
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c->current = x;
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}
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if (x == NULL) {
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c->current = y;
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return FALSE;
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}
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if(c->ListPaintProc != NULL)
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(*c->ListPaintProc)(c);
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return TRUE;
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}
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/*
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* Purpose is set the list start and end values. Main use is for lists that
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* stretch longer then the window settings.
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*/
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int set_list_end(CELL *c) {
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register int x = 0;
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if (c->current == NULL)
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return x;
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c->list_end = c->list_start;
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while (x < (c->erow - c->srow)) {
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if (c->list_end->nextlistptr)
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c->list_end = c->list_end->nextlistptr;
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else
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break;
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x++;
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}
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return x;
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}
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/*
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Move the cursor up a line with wrapping
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*/
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int wrap_cursor_up (CELL * c)
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{
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if (!cursor_up (c))
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ls_end (c);
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return TRUE;
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}
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/*
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Move the cursor down a line with wrapping
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*/
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int wrap_cursor_dn (CELL * c)
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{
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if (!cursor_dn (c))
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ls_home (c);
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return TRUE;
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}
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/*
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Move the cursor up a line.
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Returns: TRUE if successful.
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FALSE if it fails. Fails because we are already at the
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first item of the list.
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*/
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int cursor_up (CELL * c)
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{
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c->redraw = TRUE;
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if (c->current == NULL)
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c->redraw = FALSE;
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else {
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if (c->current == c->list_start) {
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if (c->current->prevlistptr) {
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c->current = c->list_start = c->current->prevlistptr;
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set_list_end(c);
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} else
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c->redraw = FALSE;
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} else {
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if (c->current->prevlistptr)
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c->current = c->current->prevlistptr;
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else
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c->redraw = FALSE;
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}
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}
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c->desc_start = 0;
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c->cur_pos = CURCOL;
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return c->redraw;
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}
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/*
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Move the cursor down a line.
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Returns: TRUE if successful.
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FALSE if it fails. Fails because we are already at the
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first item of the list.
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*/
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int cursor_dn (CELL * c)
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{
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c->redraw = TRUE;
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if (c->current == NULL)
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c->redraw = FALSE;
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else {
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if (c->current == c->list_end) {
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if (c->list_end->nextlistptr) {
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c->list_end = c->current = c->list_end->nextlistptr;
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if (c->list_start->nextlistptr)
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c->list_start = c->list_start->nextlistptr;
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} else
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c->redraw = FALSE;
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} else {
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if (c->current->nextlistptr != NULL)
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c->current = c->current->nextlistptr;
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else
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c->redraw = FALSE;
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}
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}
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c->desc_start = 0;
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c->cur_pos = CURCOL;
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return c->redraw;
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}
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/*
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* Purpose to pgup through the list values
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*/
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int ls_pgup (CELL * c)
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{
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register int pagesize = c->erow - c->srow;
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if (c->current == NULL)
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return TRUE;
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while ((pagesize) && (c->current->prevlistptr != NULL)){
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c->current = c->current->prevlistptr;
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pagesize--;
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}
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c->list_start = c->current;
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set_list_end(c);
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c -> redraw = TRUE;
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c->desc_start = 0;
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c->cur_pos = CURCOL;
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return TRUE;
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}
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/*
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* Purpose to pgdn through the list values
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*/
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int ls_pgdn (CELL * c)
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{
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register int pagesize = c->erow - c->srow;
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if (c->current == NULL)
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return TRUE;
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while ((pagesize) && (c->current->nextlistptr != NULL)){
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c->current = c->current->nextlistptr;
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pagesize--;
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}
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if (pagesize == 0)
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c->list_start = c->current;
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set_list_end(c);
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c->redraw = TRUE;
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c->desc_start = 0;
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c->cur_pos = CURCOL;
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return TRUE;
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}
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/*
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* purpose to set the home the list.
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*/
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int ls_home (CELL * c)
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{
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c->current = c->list_start = c->start;
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set_list_end(c);
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c->redraw = TRUE;
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return TRUE;
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}
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/*
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* Purpose is to go to end of list.
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*/
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int ls_end (CELL * c)
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{
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int x = 0;
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if (c->current == NULL)
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return TRUE;
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c->current = c->list_end = c->list_start = c->end;
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while (x < (c->erow - c->srow)){
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if (c->list_start->prevlistptr)
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c->list_start = c->list_start->prevlistptr;
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else
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break;
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x++;
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}
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c -> redraw = TRUE;
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return TRUE;
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}
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/*
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* This is the main routine used throughout.
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* Purpose is to be a function despatcher.
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* On entry
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* set termkey = 0
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* if we have a list entry procedure then
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* exec that procedure. It usely draws the box and creates the list
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* Make sure the list start and end are set so we do not overstep boundries
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* While terminate key is equal to 0
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* set function hit = false
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* if list redraw is TRUE and we have a redraw procedure
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* exec redraw procedure. Usually draws only items in the list.
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* if we have a UpdateStatusProc
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* exec Updatestatusproc. Usually displays counts, Menus, etc.
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* if termkey is equal to 0
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* if othergetkey is TRUE and othergetkeyproc is not equal to NULL
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* exec othergetkeyproc. Used to provide edit functions
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* else
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* call get char function
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* Set special to 0. Indicates which function to call, iff found in list.
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* Check menu list until end of list (-1) for a matching key value.
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* if key and menu item key match and function is not NULL
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* set special equal to special number
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* exec function and save returned value in hit.
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* hit indicates whether or not we have exec'd a function for a key
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* break to end of loop
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* if hit is FALSE and current_event is not equal to NULL
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* exec current event. This allows us to check for both upper and lower
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* case keys.
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* loop to top and check termkey.
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*
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* if termkey was set then
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* we clear the list and exit function dispatch.
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* return terminate key
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*/
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int ls_dispatch (CELL * c)
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{
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long x;
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long hit;
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c -> termkey = 0;
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if ((*c -> ListEntryProc) != NULL)
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x = (*c -> ListEntryProc) (c);
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/*
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if (c->start == NULL) {
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return c->termkey;
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}
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*/
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set_list_end(c);
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while (c -> termkey == 0/* && c->start*/) {
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hit = FALSE;
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if (c->redraw && ((*c -> ListPaintProc) != NULL))
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(*c -> ListPaintProc) (c);
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if (*c -> UpdateStatusProc != NULL)
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(*c -> UpdateStatusProc) (c);
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if (c -> termkey == 0) {
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if ((*c -> OtherGetKeyProc) != NULL && c->other_getkey)
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c -> key = (*c->OtherGetKeyProc) (c);
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else
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c->key = getch();
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#if 0
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c->key = get_char (c, (int)c->menu_bar);
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#endif
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}
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c->special = 0;
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for (x = 0; c ->keytable[x].key != -1; x++)
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if ((c -> keytable[x].key == c->key) && ((*c->func_table[c->keytable[x].func_num].func) != NULL)) {
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c->special = c->keytable[x].func_num;
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hit = (*c->func_table[c->keytable[x].func_num].func)(c);
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break;
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}
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if (hit == FALSE && *c->current_event != NULL)
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(*c -> current_event) (c);
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}
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if (*c -> ListExitProc != NULL)
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(*c -> ListExitProc) (c);
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return c -> termkey;
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}
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/*
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* Terminate function. Set termkey to the keystroke entered.
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*/
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int ls_quit (CELL * c)
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{
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c->termkey = c->key;
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return TRUE;
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}
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