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#if !defined(lint) && !defined(DOS)
static char rcsid[] = "$Id: margin.c 1032 2008-04-11 00:30:04Z hubert@u.washington.edu $";
#endif
/*
* ========================================================================
* Copyright 2006-2008 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
/*======================================================================
margin.c
Implements message data gathering and formatting
====*/
#include "../pith/headers.h"
#include "../pith/string.h"
#include "../pith/state.h"
#include "../pith/conf.h"
/*
* Internal prototypes
*/
/*
* format_view_margin - return sane value for vertical margins
*/
int *
format_view_margin(void)
{
static int margin[2];
char tmp[100], e[200], *err, lastchar = 0;
int left = 0, right = 0, leftm = 0, rightm = 0;
size_t l;
memset(margin, 0, sizeof(margin));
/*
* We initially tried to make sure that the user didn't shoot themselves
* in the foot by setting this too small. People seem to want to do some
* strange stuff, so we're going to relax the wild shot detection and
* let people set what they want, until we get to the point of totally
* absurd. We've also added the possibility of appending the letter c
* onto the width. That means treat the value as an absolute column
* instead of a width. That is, a right margin of 76c means wrap at
* column 76, whereas right margin of 4 means to wrap at column
* screen width - 4.
*/
if(ps_global->VAR_VIEW_MARGIN_LEFT){
strncpy(tmp, ps_global->VAR_VIEW_MARGIN_LEFT, sizeof(tmp)-1);
tmp[sizeof(tmp)-1] = '\0';
removing_leading_and_trailing_white_space(tmp);
if(tmp[0]){
l = strlen(tmp);
if(l > 0)
lastchar = tmp[l-1];
if(lastchar == 'c')
tmp[l-1] = '\0';
if((err = strtoval(tmp, &left, 0, 0, 0, e, sizeof(e), "Viewer-margin-left")) != NULL){
leftm = 0;
dprint((2, "%s\n", err));
}
else{
if(lastchar == 'c')
leftm = left-1;
else
leftm = left;
leftm = MIN(MAX(0, leftm), ps_global->ttyo->screen_cols);
}
}
}
if(ps_global->VAR_VIEW_MARGIN_RIGHT){
strncpy(tmp, ps_global->VAR_VIEW_MARGIN_RIGHT, sizeof(tmp)-1);
tmp[sizeof(tmp)-1] = '\0';
removing_leading_and_trailing_white_space(tmp);
if(tmp[0]){
l = strlen(tmp);
if(l > 0)
lastchar = tmp[l-1];
if(lastchar == 'c')
tmp[l-1] = '\0';
if((err = strtoval(tmp, &right, 0, 0, 0, e, sizeof(e), "Viewer-margin-right")) != NULL){
rightm = 0;
dprint((2, "%s\n", err));
}
else{
if(lastchar == 'c')
rightm = ps_global->ttyo->screen_cols - right;
else
rightm = right;
rightm = MIN(MAX(0, rightm), ps_global->ttyo->screen_cols);
}
}
}
if((rightm > 0 || leftm > 0) && rightm >= 0 && leftm >= 0
&& ps_global->ttyo->screen_cols - rightm - leftm >= 8){
margin[0] = leftm;
margin[1] = rightm;
}
return(margin);
}
/*
* Give a margin for help and such
*/
int *
non_messageview_margin(void)
{
static int margin[2];
margin[0] = 0;
margin[1] = 4;
return(margin);
}
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