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authorRob Landley <rob@landley.net>2021-05-16 20:21:14 -0500
committerRob Landley <rob@landley.net>2021-05-16 20:21:14 -0500
commit495bedd37f60064a0b67e6a481ea6e7576555e58 (patch)
treeda8f7038c4bd065e3ba3b17e1bbdb3560f3c17e1
parenta4430f2fbe5339c256b595c79be00e043ea0458a (diff)
downloadtoybox-495bedd37f60064a0b67e6a481ea6e7576555e58.tar.gz
Add black and white mode (x to toggle)
-rw-r--r--toys/other/hexedit.c52
1 files changed, 34 insertions, 18 deletions
diff --git a/toys/other/hexedit.c b/toys/other/hexedit.c
index 398ec15d..4124c779 100644
--- a/toys/other/hexedit.c
+++ b/toys/other/hexedit.c
@@ -24,6 +24,7 @@ config HEXEDIT
^J or : Jump (+/- for relative offset, otherwise absolute address)
^F or / Find string (^G/n: next, ^D/p: previous match)
u Undo
+ x Toggle bw/color display
q/^C/^Q/Esc Quit
*/
@@ -31,14 +32,10 @@ config HEXEDIT
#include "toys.h"
GLOBALS(
- char *data;
- long long len, base;
- int numlen, undo, undolen;
+ char *data, *search, keybuf[16], input[80];
+ long long len, base, pos;
+ int numlen, undo, undolen, mode;
unsigned rows, cols;
- long long pos;
- char keybuf[16];
- char input[80];
- char *search;
)
#define UNDO_LEN (sizeof(toybuf)/(sizeof(long long)+1))
@@ -71,13 +68,10 @@ static int prompt(char *prompt, char *initial_value)
break;
}
- if (key == 0x7f) {
- if (len > 0) TT.input[--len] = 0;
- } else if (key == 'U'-'@') {
- while (len > 0) TT.input[--len] = 0;
- } else if (key >= ' ' && key < 0x7f && len < sizeof(TT.input)) {
+ if (key == 0x7f && (len > 0)) TT.input[--len] = 0;
+ else if (key == 'U'-'@') while (len > 0) TT.input[--len] = 0;
+ else if (key >= ' ' && key < 0x7f && len < sizeof(TT.input))
TT.input[len++] = key;
- }
}
tty_esc("?25l");
@@ -87,12 +81,27 @@ static int prompt(char *prompt, char *initial_value)
// Render all characters printable, using color to distinguish.
static void draw_char(int ch)
{
- if (ch >= ' ' && ch < 0x7f) putchar(ch);
- else {
+ if (ch >= ' ' && ch < 0x7f) {
+ putchar(ch);
+ return;
+ }
+
+ if (TT.mode) {
+ if (ch>127) {
+ tty_esc("2m");
+ ch &= 127;
+ }
+ if (ch<32 || ch==127) {
+ tty_esc("7m");
+ if (ch==127) ch = 32;
+ else ch += 64;
+ }
+ xputc(ch);
+ } else {
if (ch < ' ') printf("\e[31m%c", ch + '@');
- else printf("\e[35m?");
+ else tty_esc("35m?");
}
- printf("\e[0m");
+ tty_esc("0m");
}
static void draw_status(void)
@@ -121,7 +130,7 @@ static void draw_line(long long yy)
if (yy+xx>=TT.len) xx = TT.len-yy;
if (yy<TT.len) {
- printf("\r\e[33m%0*llx\e[0m ", TT.numlen, yy);
+ printf("\r\e[%dm%0*llx\e[0m ", 33*!TT.mode, TT.numlen, yy);
for (x=0; x<xx; x++) {
putchar(' ');
draw_byte(TT.data[yy+x]);
@@ -267,6 +276,13 @@ void hexedit_main(void)
continue;
}
+ if (key == 'x') {
+ TT.mode = !TT.mode;
+ tty_esc("0m");
+ draw_page();
+ continue;
+ }
+
// Various popular ways to quit...
if (key==-1||key==('C'-'@')||key==('Q'-'@')||key==27||key=='q') break;
highlight(x, y, 2);