/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1995, by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*
 * vid_puts.c
 *
 * XCurses Library
 *
 * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
 *
 */

#ifdef M_RCSID
#ifndef lint
static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/vid_puts.c 1.5 1995/07/19 16:38:26 ant Exp $";
#endif
#endif

#include <private.h>
#include <limits.h>

STATIC attr_t turn_off(int (*)(int), attr_t);
STATIC attr_t turn_on(int (*)(int), attr_t);

/*
 * Return true if attribute X a member of the attribute set A.
 * no_color_video is the set of attributes that cannot be combined
 * with colours.
 */
#define ISATTR(a,x)     (((a) & ~no_color_video & (x)) == (x))

/*f
 * Set the desired attribute state for a terminal screen.
 *
 * Using set_attributes is the prefered method but requires some care
 * in writing the proper terminfo string.  Using exit_attribute_mode and
 * the assorted enter_ attribute mode capabilities is the next best method.
 * Finally using the assorted exit_ and enter_ attribute mode capabilities
 * is the last method available and is not necessarily efficent (or smart
 * because of the needs of ceol_standout_glitch support).
 */
int
vid_puts(attr_t attr, short pair, void *opts, int (*putout)(int))
{
#ifdef M_CURSES_TRACE
        __m_trace("vid_puts(%x, %d, %p, %p)", attr, pair, opts, putout);
#endif

        if (set_attributes != (char *) 0 && ATTR_STATE != attr) {
                /* Assume that <set_attributes> disables attributes
                 * then re-enables attributes that are to be on.
                 */
                (void) tputs(
                        tparm(
                                set_attributes,
                                (long) ISATTR(attr, WA_STANDOUT),
                                (long) ISATTR(attr, WA_UNDERLINE),
                                (long) ISATTR(attr, WA_REVERSE),
                                (long) ISATTR(attr, WA_BLINK),
                                (long) ISATTR(attr, WA_DIM),
                                (long) ISATTR(attr, WA_BOLD),
                                (long) ISATTR(attr, WA_INVIS),
                                (long) ISATTR(attr, WA_PROTECT),
                                (long) ISATTR(attr, WA_ALTCHARSET)
                        ),
                        1, putout
                );

                ATTR_STATE &= ~WA_SGR_MASK;
                ATTR_STATE |= attr & WA_SGR_MASK;

                /* Only use <set_a_attributes> when <set_attributes>
                 * is defined.  <set_a_attributes> should not disable
                 * attributes, as this will have been handled by
                 * <set_attributes>.
                 */
                if (set_a_attributes != (char *) 0 && (attr & WA_SGR1_MASK)) {
                        (void) tputs(
                                tparm(
                                        set_a_attributes,
                                        (long) ISATTR(attr, WA_HORIZONTAL),
                                        (long) ISATTR(attr, WA_LEFT),
                                        (long) ISATTR(attr, WA_LOW),
                                        (long) ISATTR(attr, WA_RIGHT),
                                        (long) ISATTR(attr, WA_TOP),
                                        (long) ISATTR(attr, WA_VERTICAL),
                                        0L, 0L, 0L
                                ),
                                1, putout
                        );

                        ATTR_STATE &= ~WA_SGR1_MASK;
                        ATTR_STATE |= attr & WA_SGR1_MASK;
                }
        } else if (ATTR_STATE != attr) {
                /* Turn off only those attributes that are on. */
                (void) turn_off(putout, ATTR_STATE);

                /* Turn on attributes regardless if they are already
                 * on, because terminals with ceol_standout_glitch, like
                 * HP terminals, will have to re-enforce the current
                 * attributes in order to change existing attribute
                 * cookies on the screen.
                 */
                ATTR_STATE = turn_on(putout, attr);
        }

        /* A_NORMAL equals 0, which is all attributes off and
         * COLOR_PAIR(0).  This implies that colour pair 0 is
         * the orig_pair.
         */
        if (attr == WA_NORMAL) {
                if (orig_pair != (char *) 0)
                        (void) tputs(orig_pair, 1, putout);

                pair = 0;
        } else if (pair != cur_term->_co && 0 < max_colors) {
                short fg, bg;

                if (set_color_pair != (char *) 0) {
                        (void) tputs(
                                tparm(
                                        set_color_pair, (long) pair,
                                        0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L
                                ),
                                1, putout
                        );
                } else if (pair_content(pair, &fg, &bg) == OK) {
                        if (set_foreground != (char *) 0) {
                                (void) tputs(
                                        tparm(set_foreground, (long) fg,
                                                0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L
                                        ),
                                        1, putout
                                );
                        } else if (set_a_foreground != (char *) 0) {
                                (void) tputs(
                                        tparm(
                                                set_a_foreground, (long) fg,
                                                0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L
                                        ),
                                        1, putout
                                );
                        }

                        if (set_background != (char *) 0) {
                                (void) tputs(
                                        tparm(set_background, (long) bg,
                                                0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L
                                        ),
                                        1, putout
                                );
                        } else if (set_a_background != (char *) 0) {
                                (void) tputs(
                                        tparm(
                                                set_a_background, (long) bg,
                                                0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L
                                        ),
                                        1, putout
                                );
                        }
                }
        }

        /* Remember the current attribute state for the terminal. */
        ATTR_STATE = attr;
        cur_term->_co = pair;

        return __m_return_code("vid_puts", OK);
}

STATIC attr_t
turn_off(int (*putout)(int), attr_t attr)
{
        attr_t new = attr;

        if (exit_attribute_mode != (char *) 0) {
                (void) tputs(exit_attribute_mode, 1, putout);
                new = WA_NORMAL;
        } else {
                if (ISATTR(attr, WA_UNDERLINE)
                && exit_underline_mode != (char *) 0) {
                        (void) tputs(exit_underline_mode, 1, putout);
                        new &= ~WA_UNDERLINE;
                }

                if (ISATTR(attr, WA_STANDOUT)
                && exit_standout_mode != (char *) 0) {
                        (void) tputs(exit_standout_mode, 1, putout);
                        new &= ~WA_STANDOUT;
                }

                if (ISATTR(attr, WA_ALTCHARSET)
                && exit_alt_charset_mode != (char *) 0) {
                        (void) tputs(exit_alt_charset_mode, 1, putout);
                        new &= ~WA_ALTCHARSET;
                }
        }

        return new;
}

STATIC attr_t
turn_on(int (*putout)(int), attr_t attr)
{
        attr_t new = attr;

        if (ISATTR(attr, WA_ALTCHARSET)
        && enter_alt_charset_mode != (char *) 0) {
                (void) tputs(enter_alt_charset_mode, 1, putout);
                new |= WA_ALTCHARSET;
        }

        if (ISATTR(attr, WA_BLINK) && enter_blink_mode != (char *) 0) {
                (void) tputs(enter_blink_mode, 1, putout);
                new |= WA_BLINK;
        }

        if (ISATTR(attr, WA_BOLD) && enter_bold_mode != (char *) 0) {
                (void) tputs(enter_bold_mode, 1, putout);
                new |= WA_BOLD;
        }

        if (ISATTR(attr, WA_INVIS) && enter_secure_mode != (char *) 0) {
                (void) tputs(enter_secure_mode, 1, putout);
                new |= WA_INVIS;
        }

        if (ISATTR(attr, WA_DIM) && enter_dim_mode != (char *) 0) {
                (void) tputs(enter_dim_mode, 1, putout);
                new |= WA_DIM;
        }

        if (ISATTR(attr, WA_PROTECT) && enter_protected_mode != (char *) 0) {
                (void) tputs(enter_protected_mode, 1, putout);
                new |= WA_PROTECT;
        }

        if (ISATTR(attr, WA_REVERSE) && enter_reverse_mode != (char *) 0) {
                (void) tputs(enter_reverse_mode, 1, putout);
                new |= WA_REVERSE;
        }

        if (ISATTR(attr, WA_STANDOUT) && enter_standout_mode != (char *) 0) {
                (void) tputs(enter_standout_mode, 1, putout);
                new |= WA_STANDOUT;
        }

        if (ISATTR(attr, WA_UNDERLINE) && enter_underline_mode != (char *) 0) {
                (void) tputs(enter_underline_mode, 1, putout);
                new |= WA_UNDERLINE;
        }

        if (ISATTR(attr, WA_HORIZONTAL)
        && enter_horizontal_hl_mode != (char *) 0) {
                (void) tputs(enter_horizontal_hl_mode, 1, putout);
                new |= WA_HORIZONTAL;
        }

        if (ISATTR(attr, WA_LEFT) && enter_left_hl_mode != (char *) 0) {
                (void) tputs(enter_left_hl_mode, 1, putout);
                new |= WA_LEFT;
        }

        if (ISATTR(attr, WA_LOW) && enter_low_hl_mode != (char *) 0) {
                (void) tputs(enter_low_hl_mode, 1, putout);
                new |= WA_LOW;
        }

        if (ISATTR(attr, WA_RIGHT) && enter_right_hl_mode != (char *) 0) {
                (void) tputs(enter_right_hl_mode, 1, putout);
                new |= WA_RIGHT;
        }

        if (ISATTR(attr, WA_TOP) && enter_top_hl_mode != (char *) 0) {
                (void) tputs(enter_top_hl_mode, 1, putout);
                new |= WA_TOP;
        }

        if (ISATTR(attr, WA_VERTICAL) && enter_vertical_hl_mode != (char *) 0) {
                (void) tputs(enter_vertical_hl_mode, 1, putout);
                new |= WA_VERTICAL;
        }

        return new;
}