360 lines
9.4 KiB
C
360 lines
9.4 KiB
C
/*
|
|
* util.c
|
|
*
|
|
* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
|
|
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
|
|
*
|
|
* 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 (at your option) 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.
|
|
*/
|
|
|
|
#include "dialog.h"
|
|
|
|
|
|
/* use colors by default? */
|
|
bool use_colors = 1;
|
|
|
|
const char *backtitle = NULL;
|
|
|
|
const char *dialog_result;
|
|
|
|
/*
|
|
* Attribute values, default is for mono display
|
|
*/
|
|
chtype attributes[] =
|
|
{
|
|
A_NORMAL, /* screen_attr */
|
|
A_NORMAL, /* shadow_attr */
|
|
A_NORMAL, /* dialog_attr */
|
|
A_BOLD, /* title_attr */
|
|
A_NORMAL, /* border_attr */
|
|
A_REVERSE, /* button_active_attr */
|
|
A_DIM, /* button_inactive_attr */
|
|
A_REVERSE, /* button_key_active_attr */
|
|
A_BOLD, /* button_key_inactive_attr */
|
|
A_REVERSE, /* button_label_active_attr */
|
|
A_NORMAL, /* button_label_inactive_attr */
|
|
A_NORMAL, /* inputbox_attr */
|
|
A_NORMAL, /* inputbox_border_attr */
|
|
A_NORMAL, /* searchbox_attr */
|
|
A_BOLD, /* searchbox_title_attr */
|
|
A_NORMAL, /* searchbox_border_attr */
|
|
A_BOLD, /* position_indicator_attr */
|
|
A_NORMAL, /* menubox_attr */
|
|
A_NORMAL, /* menubox_border_attr */
|
|
A_NORMAL, /* item_attr */
|
|
A_REVERSE, /* item_selected_attr */
|
|
A_BOLD, /* tag_attr */
|
|
A_REVERSE, /* tag_selected_attr */
|
|
A_BOLD, /* tag_key_attr */
|
|
A_REVERSE, /* tag_key_selected_attr */
|
|
A_BOLD, /* check_attr */
|
|
A_REVERSE, /* check_selected_attr */
|
|
A_BOLD, /* uarrow_attr */
|
|
A_BOLD /* darrow_attr */
|
|
};
|
|
|
|
|
|
#include "colors.h"
|
|
|
|
/*
|
|
* Table of color values
|
|
*/
|
|
int color_table[][3] =
|
|
{
|
|
{SCREEN_FG, SCREEN_BG, SCREEN_HL},
|
|
{SHADOW_FG, SHADOW_BG, SHADOW_HL},
|
|
{DIALOG_FG, DIALOG_BG, DIALOG_HL},
|
|
{TITLE_FG, TITLE_BG, TITLE_HL},
|
|
{BORDER_FG, BORDER_BG, BORDER_HL},
|
|
{BUTTON_ACTIVE_FG, BUTTON_ACTIVE_BG, BUTTON_ACTIVE_HL},
|
|
{BUTTON_INACTIVE_FG, BUTTON_INACTIVE_BG, BUTTON_INACTIVE_HL},
|
|
{BUTTON_KEY_ACTIVE_FG, BUTTON_KEY_ACTIVE_BG, BUTTON_KEY_ACTIVE_HL},
|
|
{BUTTON_KEY_INACTIVE_FG, BUTTON_KEY_INACTIVE_BG, BUTTON_KEY_INACTIVE_HL},
|
|
{BUTTON_LABEL_ACTIVE_FG, BUTTON_LABEL_ACTIVE_BG, BUTTON_LABEL_ACTIVE_HL},
|
|
{BUTTON_LABEL_INACTIVE_FG, BUTTON_LABEL_INACTIVE_BG,
|
|
BUTTON_LABEL_INACTIVE_HL},
|
|
{INPUTBOX_FG, INPUTBOX_BG, INPUTBOX_HL},
|
|
{INPUTBOX_BORDER_FG, INPUTBOX_BORDER_BG, INPUTBOX_BORDER_HL},
|
|
{SEARCHBOX_FG, SEARCHBOX_BG, SEARCHBOX_HL},
|
|
{SEARCHBOX_TITLE_FG, SEARCHBOX_TITLE_BG, SEARCHBOX_TITLE_HL},
|
|
{SEARCHBOX_BORDER_FG, SEARCHBOX_BORDER_BG, SEARCHBOX_BORDER_HL},
|
|
{POSITION_INDICATOR_FG, POSITION_INDICATOR_BG, POSITION_INDICATOR_HL},
|
|
{MENUBOX_FG, MENUBOX_BG, MENUBOX_HL},
|
|
{MENUBOX_BORDER_FG, MENUBOX_BORDER_BG, MENUBOX_BORDER_HL},
|
|
{ITEM_FG, ITEM_BG, ITEM_HL},
|
|
{ITEM_SELECTED_FG, ITEM_SELECTED_BG, ITEM_SELECTED_HL},
|
|
{TAG_FG, TAG_BG, TAG_HL},
|
|
{TAG_SELECTED_FG, TAG_SELECTED_BG, TAG_SELECTED_HL},
|
|
{TAG_KEY_FG, TAG_KEY_BG, TAG_KEY_HL},
|
|
{TAG_KEY_SELECTED_FG, TAG_KEY_SELECTED_BG, TAG_KEY_SELECTED_HL},
|
|
{CHECK_FG, CHECK_BG, CHECK_HL},
|
|
{CHECK_SELECTED_FG, CHECK_SELECTED_BG, CHECK_SELECTED_HL},
|
|
{UARROW_FG, UARROW_BG, UARROW_HL},
|
|
{DARROW_FG, DARROW_BG, DARROW_HL},
|
|
}; /* color_table */
|
|
|
|
/*
|
|
* Set window to attribute 'attr'
|
|
*/
|
|
void
|
|
attr_clear (WINDOW * win, int height, int width, chtype attr)
|
|
{
|
|
int i, j;
|
|
|
|
wattrset (win, attr);
|
|
for (i = 0; i < height; i++) {
|
|
wmove (win, i, 0);
|
|
for (j = 0; j < width; j++)
|
|
waddch (win, ' ');
|
|
}
|
|
touchwin (win);
|
|
}
|
|
|
|
void dialog_clear (void)
|
|
{
|
|
attr_clear (stdscr, LINES, COLS, screen_attr);
|
|
/* Display background title if it exists ... - SLH */
|
|
if (backtitle != NULL) {
|
|
int i;
|
|
|
|
wattrset (stdscr, screen_attr);
|
|
mvwaddstr (stdscr, 0, 1, (char *)backtitle);
|
|
wmove (stdscr, 1, 1);
|
|
for (i = 1; i < COLS - 1; i++)
|
|
waddch (stdscr, ACS_HLINE);
|
|
}
|
|
wnoutrefresh (stdscr);
|
|
}
|
|
|
|
/*
|
|
* Do some initialization for dialog
|
|
*/
|
|
void
|
|
init_dialog (void)
|
|
{
|
|
initscr (); /* Init curses */
|
|
keypad (stdscr, TRUE);
|
|
cbreak ();
|
|
noecho ();
|
|
|
|
|
|
if (use_colors) /* Set up colors */
|
|
color_setup ();
|
|
|
|
|
|
dialog_clear ();
|
|
}
|
|
|
|
/*
|
|
* Setup for color display
|
|
*/
|
|
void
|
|
color_setup (void)
|
|
{
|
|
int i;
|
|
|
|
if (has_colors ()) { /* Terminal supports color? */
|
|
start_color ();
|
|
|
|
/* Initialize color pairs */
|
|
for (i = 0; i < ATTRIBUTE_COUNT; i++)
|
|
init_pair (i + 1, color_table[i][0], color_table[i][1]);
|
|
|
|
/* Setup color attributes */
|
|
for (i = 0; i < ATTRIBUTE_COUNT; i++)
|
|
attributes[i] = C_ATTR (color_table[i][2], i + 1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* End using dialog functions.
|
|
*/
|
|
void
|
|
end_dialog (void)
|
|
{
|
|
endwin ();
|
|
}
|
|
|
|
|
|
/*
|
|
* Print a string of text in a window, automatically wrap around to the
|
|
* next line if the string is too long to fit on one line. Newline
|
|
* characters '\n' are replaced by spaces. We start on a new line
|
|
* if there is no room for at least 4 nonblanks following a double-space.
|
|
*/
|
|
void
|
|
print_autowrap (WINDOW * win, const char *prompt, int width, int y, int x)
|
|
{
|
|
int newl, cur_x, cur_y;
|
|
int i, prompt_len, room, wlen;
|
|
char tempstr[MAX_LEN + 1], *word, *sp, *sp2;
|
|
|
|
strcpy (tempstr, prompt);
|
|
|
|
prompt_len = strlen(tempstr);
|
|
|
|
/*
|
|
* Remove newlines
|
|
*/
|
|
for(i=0; i<prompt_len; i++) {
|
|
if(tempstr[i] == '\n') tempstr[i] = ' ';
|
|
}
|
|
|
|
if (prompt_len <= width - x * 2) { /* If prompt is short */
|
|
wmove (win, y, (width - prompt_len) / 2);
|
|
waddstr (win, tempstr);
|
|
} else {
|
|
cur_x = x;
|
|
cur_y = y;
|
|
newl = 1;
|
|
word = tempstr;
|
|
while (word && *word) {
|
|
sp = index(word, ' ');
|
|
if (sp)
|
|
*sp++ = 0;
|
|
|
|
/* Wrap to next line if either the word does not fit,
|
|
or it is the first word of a new sentence, and it is
|
|
short, and the next word does not fit. */
|
|
room = width - cur_x;
|
|
wlen = strlen(word);
|
|
if (wlen > room ||
|
|
(newl && wlen < 4 && sp && wlen+1+strlen(sp) > room
|
|
&& (!(sp2 = index(sp, ' ')) || wlen+1+(sp2-sp) > room))) {
|
|
cur_y++;
|
|
cur_x = x;
|
|
}
|
|
wmove (win, cur_y, cur_x);
|
|
waddstr (win, word);
|
|
getyx (win, cur_y, cur_x);
|
|
cur_x++;
|
|
if (sp && *sp == ' ') {
|
|
cur_x++; /* double space */
|
|
while (*++sp == ' ');
|
|
newl = 1;
|
|
} else
|
|
newl = 0;
|
|
word = sp;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Print a button
|
|
*/
|
|
void
|
|
print_button (WINDOW * win, const char *label, int y, int x, int selected)
|
|
{
|
|
int i, temp;
|
|
|
|
wmove (win, y, x);
|
|
wattrset (win, selected ? button_active_attr : button_inactive_attr);
|
|
waddstr (win, "<");
|
|
temp = strspn (label, " ");
|
|
label += temp;
|
|
wattrset (win, selected ? button_label_active_attr
|
|
: button_label_inactive_attr);
|
|
for (i = 0; i < temp; i++)
|
|
waddch (win, ' ');
|
|
wattrset (win, selected ? button_key_active_attr
|
|
: button_key_inactive_attr);
|
|
waddch (win, label[0]);
|
|
wattrset (win, selected ? button_label_active_attr
|
|
: button_label_inactive_attr);
|
|
waddstr (win, (char *)label + 1);
|
|
wattrset (win, selected ? button_active_attr : button_inactive_attr);
|
|
waddstr (win, ">");
|
|
wmove (win, y, x + temp + 1);
|
|
}
|
|
|
|
/*
|
|
* Draw a rectangular box with line drawing characters
|
|
*/
|
|
void
|
|
draw_box (WINDOW * win, int y, int x, int height, int width,
|
|
chtype box, chtype border)
|
|
{
|
|
int i, j;
|
|
|
|
wattrset (win, 0);
|
|
for (i = 0; i < height; i++) {
|
|
wmove (win, y + i, x);
|
|
for (j = 0; j < width; j++)
|
|
if (!i && !j)
|
|
waddch (win, border | ACS_ULCORNER);
|
|
else if (i == height - 1 && !j)
|
|
waddch (win, border | ACS_LLCORNER);
|
|
else if (!i && j == width - 1)
|
|
waddch (win, box | ACS_URCORNER);
|
|
else if (i == height - 1 && j == width - 1)
|
|
waddch (win, box | ACS_LRCORNER);
|
|
else if (!i)
|
|
waddch (win, border | ACS_HLINE);
|
|
else if (i == height - 1)
|
|
waddch (win, box | ACS_HLINE);
|
|
else if (!j)
|
|
waddch (win, border | ACS_VLINE);
|
|
else if (j == width - 1)
|
|
waddch (win, box | ACS_VLINE);
|
|
else
|
|
waddch (win, box | ' ');
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Draw shadows along the right and bottom edge to give a more 3D look
|
|
* to the boxes
|
|
*/
|
|
void
|
|
draw_shadow (WINDOW * win, int y, int x, int height, int width)
|
|
{
|
|
int i;
|
|
|
|
if (has_colors ()) { /* Whether terminal supports color? */
|
|
wattrset (win, shadow_attr);
|
|
wmove (win, y + height, x + 2);
|
|
for (i = 0; i < width; i++)
|
|
waddch (win, winch (win) & A_CHARTEXT);
|
|
for (i = y + 1; i < y + height + 1; i++) {
|
|
wmove (win, i, x + width);
|
|
waddch (win, winch (win) & A_CHARTEXT);
|
|
waddch (win, winch (win) & A_CHARTEXT);
|
|
}
|
|
wnoutrefresh (win);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return the position of the first alphabetic character in a string.
|
|
*/
|
|
int
|
|
first_alpha(const char *string, const char *exempt)
|
|
{
|
|
int i, in_paren=0, c;
|
|
|
|
for (i = 0; i < strlen(string); i++) {
|
|
c = tolower(string[i]);
|
|
|
|
if (strchr("<[(", c)) ++in_paren;
|
|
if (strchr(">])", c)) --in_paren;
|
|
|
|
if ((! in_paren) && isalpha(c) &&
|
|
strchr(exempt, c) == 0)
|
|
return i;
|
|
}
|
|
|
|
return 0;
|
|
}
|