mc/lib/widget/frame.c
Andrew Borodin 8b4386df83 Ticket #4120: draw shadows for dialog boxes and menus.
Thanks Aleš Janda <ales.janda@kyblsoft.cz> for the original patch.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
2020-08-02 16:13:26 +03:00

166 lines
4.7 KiB
C

/*
Widgets for the Midnight Commander
Copyright (C) 2020
The Free Software Foundation, Inc.
Authors:
Andrew Borodin <aborodin@vmail.ru>, 2020
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 frame.c
* \brief Source: WFrame widget (frame of dialogs)
*/
#include <config.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/util.h" /* MC_PTR_FREE */
#include "lib/widget.h"
/*** global variables ****************************************************************************/
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** file scope variables ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
static void
frame_adjust (WFrame * f)
{
Widget *w = WIDGET (f);
Widget *wo = WIDGET (w->owner);
w->y = wo->y;
w->x = wo->x;
w->lines = wo->lines;
w->cols = wo->cols;
w->pos_flags |= WPOS_KEEP_ALL;
}
/* --------------------------------------------------------------------------------------------- */
static void
frame_draw (const WFrame * f)
{
const Widget *w = CONST_WIDGET (f);
int d = f->compact ? 0 : 1;
const int *colors;
colors = widget_get_colors (w);
if (mc_global.tty.shadows)
tty_draw_box_shadow (w->y, w->x, w->lines, w->cols, SHADOW_COLOR);
tty_setcolor (colors[FRAME_COLOR_NORMAL]);
tty_fill_region (w->y, w->x, w->lines, w->cols, ' ');
tty_draw_box (w->y + d, w->x + d, w->lines - 2 * d, w->cols - 2 * d, f->single);
if (f->title != NULL)
{
/* TODO: truncate long title */
tty_setcolor (colors[FRAME_COLOR_TITLE]);
widget_gotoyx (w, d, (w->cols - str_term_width1 (f->title)) / 2);
tty_print_string (f->title);
}
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
WFrame *
frame_new (int y, int x, int lines, int cols, const char *title, gboolean single, gboolean compact)
{
WFrame *f;
Widget *w;
f = g_new (WFrame, 1);
w = WIDGET (f);
widget_init (w, y, x, lines, cols, frame_callback, NULL);
f->single = single;
f->compact = compact;
f->title = NULL;
frame_set_title (f, title);
return f;
}
/* --------------------------------------------------------------------------------------------- */
cb_ret_t
frame_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
{
WFrame *f = FRAME (w);
switch (msg)
{
case MSG_INIT:
frame_adjust (f);
return MSG_HANDLED;
case MSG_DRAW:
frame_draw (f);
return MSG_HANDLED;
case MSG_DESTROY:
g_free (f->title);
return MSG_HANDLED;
default:
return widget_default_callback (w, sender, msg, parm, data);
}
}
/* --------------------------------------------------------------------------------------------- */
void
frame_set_title (WFrame * f, const char *title)
{
MC_PTR_FREE (f->title);
/* Strip existing spaces, add one space before and after the title */
if (title != NULL && *title != '\0')
{
char *t;
t = g_strstrip (g_strdup (title));
if (*t != '\0')
f->title = g_strdup_printf (" %s ", t);
g_free (t);
}
widget_draw (WIDGET (f));
}
/* --------------------------------------------------------------------------------------------- */