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-rw-r--r--com32/lib/sys/libansi.c207
1 files changed, 207 insertions, 0 deletions
diff --git a/com32/lib/sys/libansi.c b/com32/lib/sys/libansi.c
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+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2009 Erwan Velu - All Rights Reserved
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall
+ * be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * -----------------------------------------------------------------------
+ * Ansi Sequences can be found here :
+ * http://ascii-table.com/ansi-escape-sequences-vt-100.php
+ * http://en.wikipedia.org/wiki/ANSI_escape_code
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "libansi.h"
+
+void display_cursor(bool status)
+{
+ if (status == true) {
+ fputs(CSI "?25h", stdout);
+ } else {
+ fputs(CSI "?25l", stdout);
+ }
+}
+
+void clear_end_of_line() {
+ fputs(CSI "0K", stdout);
+}
+
+void move_cursor_left(int count) {
+ char buffer[10];
+ memset(buffer,0,sizeof(buffer));
+ sprintf(buffer,CSI "%dD",count);
+ fputs(buffer, stdout);
+}
+
+void move_cursor_right(int count) {
+ char buffer[10];
+ memset(buffer,0,sizeof(buffer));
+ sprintf(buffer, CSI "%dC", count);
+ fputs(buffer, stdout);
+}
+
+void set_cursor_blink(bool status) {
+ if (status == true)
+ fputs("\033[05m",stdout);
+ else
+ fputs("\033[0m",stdout);
+}
+
+void clear_line() {
+ fputs(CSI "2K", stdout);
+}
+
+void clear_beginning_of_line() {
+ fputs(CSI "1K", stdout);
+}
+
+void move_cursor_to_column(int count) {
+ char buffer[10];
+ memset(buffer,0,sizeof(buffer));
+ sprintf(buffer, CSI "%dG", count);
+ fputs(buffer, stdout);
+}
+
+void move_cursor_to_next_line() {
+ fputs("\033e", stdout);
+}
+
+void disable_utf8() {
+ fputs("\033%@", stdout);
+}
+
+void set_g1_special_char(){
+ fputs("\033)0", stdout);
+}
+
+void set_us_g0_charset() {
+ fputs("\033(B\1#0", stdout);
+}
+
+void clear_entire_screen() {
+ fputs(CSI "2J", stdout);
+}
+
+/**
+ * cprint_vga2ansi - given a VGA attribute, print a character
+ * @chr: character to print
+ * @attr: vga attribute
+ *
+ * Convert the VGA attribute @attr to an ANSI escape sequence and
+ * print it.
+ **/
+static void cprint_vga2ansi(const char chr, const char attr)
+{
+ static const char ansi_char[8] = "04261537";
+ static uint16_t last_attr = 0x300;
+ char buf[16], *p;
+
+ if (attr != last_attr) {
+ p = buf;
+ *p++ = '\033';
+ *p++ = '[';
+
+ if (last_attr & ~attr & 0x88) {
+ *p++ = '0';
+ *p++ = ';';
+ /* Reset last_attr to unknown to handle
+ * background/foreground attributes correctly */
+ last_attr = 0x300;
+ }
+ if (attr & 0x08) {
+ *p++ = '1';
+ *p++ = ';';
+ }
+ if (attr & 0x80) {
+ *p++ = '4';
+ *p++ = ';';
+ }
+ if ((attr ^ last_attr) & 0x07) {
+ *p++ = '3';
+ *p++ = ansi_char[attr & 7];
+ *p++ = ';';
+ }
+ if ((attr ^ last_attr) & 0x70) {
+ *p++ = '4';
+ *p++ = ansi_char[(attr >> 4) & 7];
+ *p++ = ';';
+ }
+ p[-1] = 'm'; /* We'll have generated at least one semicolon */
+ p[0] = '\0';
+
+ last_attr = attr;
+
+ fputs(buf, stdout);
+ }
+
+ putchar(chr);
+}
+
+/**
+ * cprint - given a VGA attribute, print a single character at cursor
+ * @chr: character to print
+ * @attr: VGA attribute
+ * @times: number of times to print @chr
+ *
+ * Note: @attr is a VGA attribute.
+ **/
+void cprint(const char chr, const char attr, unsigned int times)
+{
+ while (times--)
+ cprint_vga2ansi(chr, attr);
+}
+
+/**
+ * csprint - given a VGA attribute, print a NULL-terminated string
+ * @str: string to print
+ * @attr: VGA attribute
+ **/
+void csprint(const char *str, const char attr)
+{
+ while (*str) {
+ cprint(*str, attr, 1);
+ str++;
+ }
+}
+
+/**
+ * clearwindow - fill a given a region on the screen
+ * @top, @left, @bot, @right: coordinates to fill
+ * @fillchar: character to use to fill the region
+ * @fillattr: character attribute (VGA)
+ **/
+void clearwindow(const char top, const char left, const char bot,
+ const char right, const char fillchar, const char fillattr)
+{
+ char x;
+ for (x = top; x < bot + 1; x++) {
+ gotoxy(x, left);
+ cprint(fillchar, fillattr, right - left + 1);
+ }
+}
+
+