1 files changed, 359 insertions, 0 deletions

diff --git a/scripts/lxdialog/util.c b/scripts/lxdialog/util.c
new file mode 100644
index 000000000000..e7bce9be69c3
--- /dev/null
+++ b/scripts/lxdialog/util.c
@@ -0,0 +1,359 @@
+/*
+ *  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 > 0) --in_paren;
+
+                if ((! in_paren) && isalpha(c) && 
+                     strchr(exempt, c) == 0)
+                        return i;
+        }
+
+        return 0;
+}