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|
/***********************************************************************/
/* COLOUR.C - Colour related functions */
/* This file contains all commands that can be assigned to function */
/* keys or typed on the command line. */
/***********************************************************************/
/*
* THE - The Hessling Editor. A text editor similar to VM/CMS xedit.
* Copyright (C) 1991-1997 Mark Hessling
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to:
*
* The Free Software Foundation, Inc.
* 675 Mass Ave,
* Cambridge, MA 02139 USA.
*
*
* If you make modifications to this software that you feel increases
* it usefulness for the rest of the community, please email the
* changes, enhancements, bug fixes as well as any and all ideas to me.
* This software is going to be maintained and enhanced as deemed
* necessary by the community.
*
* Mark Hessling Email: M.Hessling@qut.edu.au
* PO Box 203 Phone: +617 3802 0800
* Bellara http://www.gu.edu.au/gext/the/markh.html
* QLD 4507 **** Maintainer PDCurses & REXX/SQL ****
* Australia ************* Author of THE ************
*/
/*
$Id: colour.c 2.1 1995/06/24 16:28:39 MH Rel MH $
*/
#include <the.h>
#include <proto.h>
/*
* attributes
* FILEAREA CURLINE BLOCK CBLOCK
* CMDLINE IDLINE MSGLINE ARROW
* PREFIX PENDING SCALE TOFEOF
* CTOFEOF TABLINE SHADOW STATAREA
* DIVIDER RESERVED NONDISP HIGHLIGHT
* CHIGHLIGHT SLK GAP
*/
#ifdef A_COLOR
static chtype the_fore[ATTR_MAX] =
{COLOR_WHITE,COLOR_WHITE,COLOR_BLUE,COLOR_RED,
COLOR_BLACK,COLOR_BLUE,COLOR_RED,COLOR_BLACK,
COLOR_BLACK,COLOR_RED,COLOR_YELLOW,COLOR_WHITE,
COLOR_WHITE,COLOR_YELLOW,COLOR_RED,COLOR_BLUE,
COLOR_RED,COLOR_WHITE,COLOR_MAGENTA,COLOR_WHITE,
COLOR_YELLOW,COLOR_BLACK,COLOR_BLACK};
static chtype the_back[ATTR_MAX] =
{COLOR_BLUE,COLOR_BLUE,COLOR_WHITE,COLOR_WHITE,
COLOR_CYAN,COLOR_WHITE,COLOR_WHITE,COLOR_CYAN,
COLOR_CYAN,COLOR_WHITE,COLOR_BLUE,COLOR_BLUE,
COLOR_BLUE,COLOR_BLUE,COLOR_WHITE,COLOR_WHITE,
COLOR_WHITE,COLOR_BLACK,COLOR_CYAN,COLOR_CYAN,
COLOR_CYAN,COLOR_CYAN,COLOR_CYAN};
static chtype the_mod[ATTR_MAX] =
{A_NORMAL,A_BOLD, A_NORMAL,A_NORMAL,
A_NORMAL,A_NORMAL,A_NORMAL,A_NORMAL,
A_NORMAL,A_NORMAL,A_BOLD, A_BOLD,
A_BOLD, A_BOLD, A_NORMAL,A_NORMAL,
A_NORMAL,A_NORMAL,A_BLINK, A_BOLD,
A_BOLD, A_BOLD, A_NORMAL};
static chtype kedit_fore[ATTR_MAX] =
{COLOR_CYAN,COLOR_YELLOW,COLOR_CYAN,COLOR_YELLOW,
COLOR_YELLOW,COLOR_YELLOW,COLOR_YELLOW,COLOR_YELLOW,
COLOR_YELLOW,COLOR_WHITE,COLOR_YELLOW,COLOR_CYAN,
COLOR_YELLOW,COLOR_YELLOW,COLOR_YELLOW,COLOR_YELLOW,
COLOR_CYAN,COLOR_YELLOW,COLOR_MAGENTA,COLOR_WHITE,
COLOR_YELLOW,COLOR_BLACK,COLOR_CYAN};
static chtype kedit_back[ATTR_MAX] =
{COLOR_BLUE,COLOR_BLUE,COLOR_WHITE,COLOR_WHITE,
COLOR_BLUE,COLOR_BLUE,COLOR_BLUE,COLOR_BLUE,
COLOR_BLUE,COLOR_BLUE,COLOR_BLUE,COLOR_BLUE,
COLOR_BLUE,COLOR_BLUE,COLOR_BLUE,COLOR_BLUE,
COLOR_BLUE,COLOR_BLUE,COLOR_CYAN,COLOR_CYAN,
COLOR_CYAN,COLOR_CYAN,COLOR_BLUE};
static chtype kedit_mod[ATTR_MAX] =
{A_BOLD, A_BOLD, A_BOLD, A_BOLD,
A_BOLD, A_BOLD, A_BOLD, A_BOLD,
A_NORMAL,A_BOLD, A_BOLD, A_BOLD,
A_BOLD, A_BOLD, A_NORMAL,A_BOLD,
A_BOLD, A_BOLD, A_BLINK, A_BOLD,
A_BOLD, A_BOLD, A_BOLD};
static chtype xedit_fore[ATTR_MAX] =
{COLOR_GREEN, COLOR_CYAN, COLOR_BLACK,COLOR_CYAN,
COLOR_YELLOW,COLOR_CYAN, COLOR_RED, COLOR_CYAN,
COLOR_GREEN, COLOR_GREEN,COLOR_CYAN, COLOR_GREEN,
COLOR_GREEN, COLOR_GREEN,COLOR_GREEN,COLOR_CYAN,
COLOR_GREEN, COLOR_GREEN,COLOR_MAGENTA,COLOR_WHITE,
COLOR_YELLOW,COLOR_BLACK,COLOR_GREEN};
static chtype xedit_back[ATTR_MAX] =
{COLOR_BLACK,COLOR_BLACK,COLOR_GREEN,COLOR_GREEN,
COLOR_BLACK,COLOR_BLACK,COLOR_BLACK,COLOR_BLACK,
COLOR_BLACK,COLOR_BLACK,COLOR_BLACK,COLOR_BLACK,
COLOR_BLACK,COLOR_BLACK,COLOR_BLACK,COLOR_BLACK,
COLOR_BLACK,COLOR_BLACK,COLOR_CYAN,COLOR_CYAN,
COLOR_CYAN,COLOR_GREEN,COLOR_BLACK};
static chtype xedit_mod[ATTR_MAX] =
{A_NORMAL,A_NORMAL,A_NORMAL,A_BOLD,
A_NORMAL,A_NORMAL,A_BOLD, A_NORMAL,
A_NORMAL,A_BOLD, A_NORMAL,A_NORMAL,
A_BOLD, A_BOLD, A_NORMAL,A_NORMAL,
A_BOLD, A_BOLD, A_BLINK, A_BOLD,
A_BOLD, A_BOLD, A_NORMAL};
#else
static chtype the_fore[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
static chtype the_back[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
static chtype the_mod[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
static chtype kedit_fore[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
static chtype kedit_back[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
static chtype kedit_mod[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
static chtype xedit_fore[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
static chtype xedit_back[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
static chtype xedit_mod[ATTR_MAX] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
#endif
static chtype the_mono[ATTR_MAX] =
{A_NORMAL,A_BOLD,A_REVERSE,A_BOLD|A_REVERSE,
A_BOLD,A_REVERSE,A_BLINK,A_BOLD,
A_REVERSE,A_BOLD|A_REVERSE,A_BOLD,A_BOLD,
A_BOLD,A_BOLD,A_BOLD,A_REVERSE,
A_BOLD,A_BOLD,A_BLINK|A_REVERSE,A_REVERSE,
A_BOLD|A_REVERSE,A_BOLD|A_REVERSE,A_REVERSE};
static chtype kedit_mono[ATTR_MAX] =
{A_NORMAL,A_BOLD, A_REVERSE,A_REVERSE|A_BOLD,
A_NORMAL,A_NORMAL,A_BOLD, A_BOLD,
A_NORMAL,A_BOLD, A_NORMAL,A_NORMAL,
A_BOLD, A_NORMAL,A_NORMAL,A_BOLD,
A_NORMAL,A_NORMAL,A_BLINK|A_REVERSE,A_REVERSE,
A_BOLD|A_REVERSE,A_BOLD|A_REVERSE,A_NORMAL};
static chtype xedit_mono[ATTR_MAX] =
{A_NORMAL,A_BOLD, A_REVERSE,A_BOLD|A_REVERSE,
A_NORMAL,A_BOLD, A_BOLD, A_BOLD,
A_NORMAL,A_BOLD, A_BOLD, A_NORMAL,
A_BOLD, A_BOLD, A_NORMAL,A_BOLD,
A_BOLD, A_BOLD, A_BLINK|A_REVERSE,A_REVERSE,
A_BOLD|A_REVERSE,A_BOLD|A_REVERSE,A_NORMAL};
struct attributes
{
CHARTYPE *attrib;
short attrib_min_len;
chtype actual_attrib;
chtype colour_modifier;
bool attrib_modifier;
bool attrib_allowed_on_mono;
};
typedef struct attributes ATTRIBS;
#define NO_ATTRIBS 21
static ATTRIBS valid_attribs[NO_ATTRIBS] =
{
{(CHARTYPE *)"black",3,COLOR_BLACK,0,FALSE,TRUE},
{(CHARTYPE *)"white",1,COLOR_WHITE,A_BOLD,FALSE,TRUE},
{(CHARTYPE *)"grey",3,COLOR_WHITE,0,FALSE,FALSE},
{(CHARTYPE *)"gray",3,COLOR_WHITE,0,FALSE,FALSE},
{(CHARTYPE *)"blue",3,COLOR_BLUE,0,FALSE,FALSE},
{(CHARTYPE *)"green",1,COLOR_GREEN,0,FALSE,FALSE},
{(CHARTYPE *)"cyan",1,COLOR_CYAN,0,FALSE,FALSE},
{(CHARTYPE *)"red",3,COLOR_RED,0,FALSE,FALSE},
{(CHARTYPE *)"magenta",1,COLOR_MAGENTA,0,FALSE,FALSE},
{(CHARTYPE *)"pink",1,COLOR_MAGENTA,A_BOLD,FALSE,FALSE},
{(CHARTYPE *)"brown",1,COLOR_YELLOW,0,FALSE,FALSE},
{(CHARTYPE *)"yellow",1,COLOR_YELLOW,A_BOLD,FALSE,FALSE},
{(CHARTYPE *)"turquoise",1,COLOR_CYAN,0,FALSE,FALSE},
{(CHARTYPE *)"normal",3,A_NORMAL,0,TRUE,TRUE},
{(CHARTYPE *)"blink",3,A_BLINK,0,TRUE,TRUE},
{(CHARTYPE *)"bold",2,A_BOLD,0,TRUE,TRUE},
{(CHARTYPE *)"bright",3,A_BOLD,0,TRUE,TRUE},
{(CHARTYPE *)"high",1,A_BOLD,0,TRUE,TRUE},
{(CHARTYPE *)"reverse",3,A_REVERSE,0,TRUE,TRUE},
{(CHARTYPE *)"underline",1,A_UNDERLINE,0,TRUE,TRUE},
{(CHARTYPE *)",",1,8,0,FALSE,TRUE},
};
/***********************************************************************/
#ifdef HAVE_PROTO
short parse_colours(CHARTYPE *attrib,COLOUR_ATTR *pattr,CHARTYPE **rem,bool spare,bool *any_colours)
#else
short parse_colours(attrib,pattr,rem,spare,any_colours)
CHARTYPE *attrib;
COLOUR_ATTR *pattr;
CHARTYPE **rem;
bool spare;
bool *any_colours;
#endif
/***********************************************************************/
{
/*------------------------- external data -----------------------------*/
extern bool colour_support;
/*--------------------------- local data ------------------------------*/
register short i=0;
short num_colours=0;
chtype mono=pattr->mono;
chtype specified_mod=0L;
chtype fg=FOREFROMPAIR(pattr->pair);
chtype bg=BACKFROMPAIR(pattr->pair);
CHARTYPE *string=NULL;
CHARTYPE *p=NULL,*oldp=NULL;
bool found=FALSE,any_found=FALSE;
bool spare_pos=FALSE;
int offset=0;
/*--------------------------- processing ------------------------------*/
#ifdef TRACE
trace_function("colour.c: parse_colours");
#endif
/*---------------------------------------------------------------------*/
/* Get a copy of the passed string and wreck it rather than the passed */
/* string. */
/*---------------------------------------------------------------------*/
if ((string = (CHARTYPE *)my_strdup(attrib)) == NULL)
{
display_error(30,(CHARTYPE *)"",FALSE);
#ifdef TRACE
trace_return();
#endif
return(RC_OUT_OF_MEMORY);
}
oldp = string;
p = (CHARTYPE *)strtok((DEFCHAR *)string," \t");
while(p != NULL)
{
found = FALSE;
for (i=0;i<NO_ATTRIBS;i++)
{
if (equal(valid_attribs[i].attrib,p,valid_attribs[i].attrib_min_len))
{
any_found = found = TRUE;
if (!valid_attribs[i].attrib_allowed_on_mono
&& !colour_support)
{
display_error(61,(CHARTYPE *)p,FALSE);
(*the_free)(string);
#ifdef TRACE
trace_return();
#endif
return(RC_INVALID_OPERAND);
}
if (valid_attribs[i].attrib_modifier)
{
if (colour_support)
specified_mod = (valid_attribs[i].actual_attrib==A_NORMAL)?A_NORMAL:specified_mod | valid_attribs[i].actual_attrib;
else
mono = (valid_attribs[i].actual_attrib==A_NORMAL)?A_NORMAL:mono | valid_attribs[i].actual_attrib;
offset = p-oldp+strlen((DEFCHAR *)p)+1;
break;
}
else
{
switch(num_colours)
{
case 0:
if (!colour_support
&& valid_attribs[i].actual_attrib != COLOR_WHITE)
{
display_error(61,(CHARTYPE *)p,FALSE);
(*the_free)(string);
#ifdef TRACE
trace_return();
#endif
return(RC_INVALID_OPERAND);
}
if (valid_attribs[i].actual_attrib != 8)
{
fg = valid_attribs[i].actual_attrib;
specified_mod |= valid_attribs[i].colour_modifier;
}
num_colours++;
offset = p-oldp+strlen((DEFCHAR *)p)+1;
break;
case 1:
if (!colour_support
&& valid_attribs[i].actual_attrib != COLOR_BLACK)
{
display_error(61,(CHARTYPE *)p,FALSE);
(*the_free)(string);
#ifdef TRACE
trace_return();
#endif
return(RC_INVALID_OPERAND);
}
if (valid_attribs[i].actual_attrib != 8)
{
bg = valid_attribs[i].actual_attrib;
}
num_colours++;
offset = p-oldp+strlen((DEFCHAR *)p)+1;
break;
default:
if (spare)
{
spare_pos = TRUE;
*rem = (CHARTYPE *)attrib+offset;
break;
}
display_error(1,(CHARTYPE *)p,FALSE);
(*the_free)(string);
#ifdef TRACE
trace_return();
#endif
return(RC_INVALID_OPERAND);
break;
}
if (spare_pos)
break;
}
break;
}
}
if (spare_pos && found)
break;
if (!found)
{
if (equal((CHARTYPE *)"on",p,2)
&& num_colours == 1)
;
else
{
if (spare)
{
*rem = (CHARTYPE *)attrib+offset;
break;
}
display_error(1,(CHARTYPE *)p,FALSE);
(*the_free)(string);
#ifdef TRACE
trace_return();
#endif
return(RC_INVALID_OPERAND);
}
}
p = (CHARTYPE *)strtok(NULL," \t");
}
if (num_colours == 0)
pattr->pair = ATTR2PAIR(COLOR_WHITE,COLOR_BLACK);
else
pattr->pair = ATTR2PAIR(fg,bg);
pattr->mod = specified_mod;
pattr->mono = mono;
*any_colours = any_found;
(*the_free)(string);
#ifdef TRACE
trace_return();
#endif
return(RC_OK);
}
/***********************************************************************/
#ifdef HAVE_PROTO
chtype set_colour(COLOUR_ATTR *attr)
#else
chtype set_colour(attr)
COLOUR_ATTR *attr;
#endif
/***********************************************************************/
{
/*------------------------- external data -----------------------------*/
extern bool colour_support;
/*--------------------------- local data ------------------------------*/
chtype color=0;
/*--------------------------- processing ------------------------------*/
#ifdef TRACE
trace_function("colour.c: set_colour");
#endif
color = attr->mono;
#ifdef A_COLOR
if (colour_support)
color = (attr->pair) ? COLOR_PAIR(attr->pair) | attr->mod : attr->mod;
#endif
#ifdef TRACE
trace_return();
#endif
return(color);
}
/***********************************************************************/
#ifdef HAVE_PROTO
void set_up_default_colours(FILE_DETAILS *fd,COLOUR_ATTR *attr,int colour_num)
#else
void set_up_default_colours(fd,attr,colour_num)
FILE_DETAILS *fd;
COLOUR_ATTR *attr;
int colour_num;
#endif
/***********************************************************************/
/* This function is called as part of reading in a new file. */
/***********************************************************************/
{
/*------------------------- external data -----------------------------*/
extern short compatible_look;
/*--------------------------- local data ------------------------------*/
register short i=0;
/*--------------------------- processing ------------------------------*/
#ifdef TRACE
trace_function("colour.c: set_up_default_colours");
#endif
/*---------------------------------------------------------------------*/
/* Set up default colours. */
/*---------------------------------------------------------------------*/
switch(compatible_look)
{
case COMPAT_THE:
if (colour_num == ATTR_MAX)
{
for (i=0;i<ATTR_MAX;i++)
{
fd->attr[i].pair = ATTR2PAIR(the_fore[i],the_back[i]);
fd->attr[i].mod = the_mod[i];
fd->attr[i].mono = the_mono[i];
}
}
else
{
attr->pair = ATTR2PAIR(the_fore[colour_num],the_back[colour_num]);
attr->mod = the_mod[colour_num];
attr->mono = the_mono[colour_num];
}
break;
case COMPAT_XEDIT:
if (colour_num == ATTR_MAX)
{
for (i=0;i<ATTR_MAX;i++)
{
fd->attr[i].pair = ATTR2PAIR(xedit_fore[i],xedit_back[i]);
fd->attr[i].mod = xedit_mod[i];
fd->attr[i].mono = xedit_mono[i];
}
}
else
{
attr->pair = ATTR2PAIR(xedit_fore[colour_num],xedit_back[colour_num]);
attr->mod = xedit_mod[colour_num];
attr->mono = xedit_mono[colour_num];
}
break;
case COMPAT_KEDIT:
if (colour_num == ATTR_MAX)
{
for (i=0;i<ATTR_MAX;i++)
{
fd->attr[i].pair = ATTR2PAIR(kedit_fore[i],kedit_back[i]);
fd->attr[i].mod = kedit_mod[i];
fd->attr[i].mono = kedit_mono[i];
}
}
else
{
attr->pair = ATTR2PAIR(kedit_fore[colour_num],kedit_back[colour_num]);
attr->mod = kedit_mod[colour_num];
attr->mono = kedit_mono[colour_num];
}
break;
}
#ifdef TRACE
trace_return();
#endif
return;
}
/***********************************************************************/
#ifdef HAVE_PROTO
CHARTYPE *get_colour_strings(COLOUR_ATTR *attr)
#else
CHARTYPE *get_colour_strings(attr)
COLOUR_ATTR *attr;
#endif
/***********************************************************************/
/* This function returns a pointer to an allocated block of memory with*/
/* textual descriptions of the colours associated with the attr. */
/* The caller is responsible for freeing up the allocated memory. */
/***********************************************************************/
{
#define GET_MOD 0
#define GET_FG 1
#define GET_BG 2
/*------------------------- external data -----------------------------*/
extern bool colour_support;
/*--------------------------- local data ------------------------------*/
register int i=0,j=0;
CHARTYPE *attr_string=NULL;
int fg=FOREFROMPAIR(attr->pair),bg=BACKFROMPAIR(attr->pair);
chtype mod=attr->mono;
int start_with=0;
bool colour_only=FALSE;
chtype match_value=0L;
/*--------------------------- processing ------------------------------*/
#ifdef TRACE
trace_function("colour.c: get_colour_strings");
#endif
start_with = GET_MOD;
#ifdef A_COLOR
if (colour_support)
{
start_with = GET_MOD;
mod = attr->mod;
}
#endif
attr_string = (CHARTYPE *)(*the_malloc)(sizeof(CHARTYPE)*70);
if (attr_string == (CHARTYPE *)NULL)
{
display_error(30,(CHARTYPE *)"",FALSE);
#ifdef TRACE
trace_return();
#endif
return(NULL);
}
strcpy((DEFCHAR *)attr_string,"");
for (j=start_with;j<3;j++)
{
switch(j)
{
case GET_FG:
colour_only = TRUE;
match_value = (chtype)fg;
break;
case GET_BG:
strcat((DEFCHAR *)attr_string,"on ");
colour_only = TRUE;
match_value = (chtype)bg;
break;
default:
colour_only = FALSE;
match_value = mod;
break;
}
for (i=0;i<NO_ATTRIBS;i++)
{
if (colour_only)
{
if (!valid_attribs[i].attrib_modifier
&& match_value == (chtype)valid_attribs[i].actual_attrib)
{
strcat((DEFCHAR *)attr_string,(DEFCHAR *)valid_attribs[i].attrib);
strcat((DEFCHAR *)attr_string," ");
break;
}
}
else
{
if (valid_attribs[i].attrib_modifier
&& (match_value & valid_attribs[i].actual_attrib))
{
strcat((DEFCHAR *)attr_string,(DEFCHAR *)valid_attribs[i].attrib);
strcat((DEFCHAR *)attr_string," ");
break;
}
}
}
}
#ifdef TRACE
trace_return();
#endif
return(attr_string);
}
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