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Diffstat (limited to 'lib/widget/hline.c')
| -rw-r--r-- | lib/widget/hline.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/lib/widget/hline.c b/lib/widget/hline.c new file mode 100644 index 0000000..73e261a --- /dev/null +++ b/lib/widget/hline.c @@ -0,0 +1,194 @@ +/* + Widgets for the Midnight Commander + + Copyright (C) 1994-2023 + Free Software Foundation, Inc. + + Authors: + Radek Doulik, 1994, 1995 + Miguel de Icaza, 1994, 1995 + Jakub Jelinek, 1995 + Andrej Borsenkow, 1996 + Norbert Warmuth, 1997 + Andrew Borodin <aborodin@vmail.ru>, 2009-2022 + + This file is part of the Midnight Commander. + + The Midnight Commander 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 3 of the License, + or (at your option) any later version. + + The Midnight Commander 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, see <http://www.gnu.org/licenses/>. + */ + +/** \file hline.c + * \brief Source: WHLine widget (horizontal line) + */ + +#include <config.h> + +#include <stdarg.h> +#include <stdlib.h> + +#include "lib/global.h" +#include "lib/tty/tty.h" +#include "lib/tty/color.h" +#include "lib/skin.h" +#include "lib/strutil.h" +#include "lib/widget.h" + +/*** global variables ****************************************************************************/ + +/*** file scope macro definitions ****************************************************************/ + +/*** file scope type declarations ****************************************************************/ + +/*** forward declarations (file scope functions) *************************************************/ + +/*** file scope variables ************************************************************************/ + +/* --------------------------------------------------------------------------------------------- */ +/*** file scope functions ************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +static void +hline_adjust_cols (WHLine * l) +{ + if (l->auto_adjust_cols) + { + Widget *wl = WIDGET (l); + const Widget *o = CONST_WIDGET (wl->owner); + WRect *w = &wl->rect; + const WRect *wo = &o->rect; + + if (CONST_DIALOG (o)->compact) + { + w->x = wo->x; + w->cols = wo->cols; + } + else + { + w->x = wo->x + 1; + w->cols = wo->cols - 2; + } + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static cb_ret_t +hline_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data) +{ + WHLine *l = HLINE (w); + + switch (msg) + { + case MSG_INIT: + hline_adjust_cols (l); + return MSG_HANDLED; + + case MSG_RESIZE: + hline_adjust_cols (l); + w->rect.y = RECT (data)->y; + return MSG_HANDLED; + + case MSG_DRAW: + if (l->transparent) + tty_setcolor (DEFAULT_COLOR); + else + { + const int *colors; + + colors = widget_get_colors (w); + tty_setcolor (colors[DLG_COLOR_NORMAL]); + } + + tty_draw_hline (w->rect.y, w->rect.x + 1, ACS_HLINE, w->rect.cols - 2); + + if (l->auto_adjust_cols) + { + widget_gotoyx (w, 0, 0); + tty_print_alt_char (ACS_LTEE, FALSE); + widget_gotoyx (w, 0, w->rect.cols - 1); + tty_print_alt_char (ACS_RTEE, FALSE); + } + + if (l->text != NULL) + { + int text_width; + + text_width = str_term_width1 (l->text); + widget_gotoyx (w, 0, (w->rect.cols - text_width) / 2); + tty_print_string (l->text); + } + return MSG_HANDLED; + + case MSG_DESTROY: + g_free (l->text); + return MSG_HANDLED; + + default: + return widget_default_callback (w, sender, msg, parm, data); + } +} + +/* --------------------------------------------------------------------------------------------- */ +/*** public functions ****************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +WHLine * +hline_new (int y, int x, int width) +{ + WRect r = { y, x, 1, width }; + WHLine *l; + Widget *w; + + l = g_new (WHLine, 1); + w = WIDGET (l); + r.cols = width < 0 ? 1 : width; + widget_init (w, &r, hline_callback, NULL); + l->text = NULL; + l->auto_adjust_cols = (width < 0); + l->transparent = FALSE; + + return l; +} + +/* --------------------------------------------------------------------------------------------- */ + +void +hline_set_text (WHLine * l, const char *text) +{ + g_free (l->text); + + if (text == NULL || *text == '\0') + l->text = NULL; + else + l->text = g_strdup (text); + + widget_draw (WIDGET (l)); +} + +/* --------------------------------------------------------------------------------------------- */ + +void +hline_set_textv (WHLine * l, const char *format, ...) +{ + va_list args; + char buf[BUF_1K]; /* FIXME: is it enough? */ + + va_start (args, format); + g_vsnprintf (buf, sizeof (buf), format, args); + va_end (args); + + hline_set_text (l, buf); +} + +/* --------------------------------------------------------------------------------------------- */ |