Random cleanup
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bc631570c3
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958cb6e912
GPG Key ID:
B715679E3A361BE6
188
hex.c
188
hex.c
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@ -353,59 +353,61 @@ app_visible_rows (void)
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}
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static void
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app_draw_view (void)
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app_make_row (struct row_buffer *buf, int64_t addr, int attrs)
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{
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int64_t end_addr = g_ctx.data_offset + g_ctx.data_len;
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for (int y = 0; y < app_visible_rows (); y++)
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{
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int64_t row_addr = g_ctx.view_top + y * ROW_SIZE;
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if (row_addr >= end_addr)
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break;
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int row_attrs = (row_addr / ROW_SIZE & 1)
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? APP_ATTR (ODD) : APP_ATTR (EVEN);
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struct row_buffer buf;
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row_buffer_init (&buf);
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char *row_addr_str = xstrdup_printf ("%08" PRIx64, row_addr);
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row_buffer_append (&buf, row_addr_str, row_attrs);
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char *row_addr_str = xstrdup_printf ("%08" PRIx64, addr);
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row_buffer_append (buf, row_addr_str, attrs);
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free (row_addr_str);
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struct str ascii;
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str_init (&ascii);
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str_append (&ascii, " ");
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int64_t end_addr = g_ctx.data_offset + g_ctx.data_len;
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for (int x = 0; x < ROW_SIZE; x++)
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{
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if (x % 8 == 0) row_buffer_append (&buf, " ", row_attrs);
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if (x % 2 == 0) row_buffer_append (&buf, " ", row_attrs);
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if (x % 8 == 0) row_buffer_append (buf, " ", attrs);
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if (x % 2 == 0) row_buffer_append (buf, " ", attrs);
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int64_t cell_addr = row_addr + x;
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int64_t cell_addr = addr + x;
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if (cell_addr < g_ctx.data_offset
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|| cell_addr >= end_addr)
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{
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row_buffer_append (&buf, " ", row_attrs);
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row_buffer_append (buf, " ", attrs);
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str_append_c (&ascii, ' ');
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}
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else
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{
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uint8_t cell = g_ctx.data[cell_addr - g_ctx.data_offset];
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char *hex = xstrdup_printf ("%02x", cell);
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row_buffer_append (&buf, hex, row_attrs);
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row_buffer_append (buf, hex, attrs);
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free (hex);
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if (cell >= 32 && cell < 127)
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str_append_c (&ascii, cell);
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else
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str_append_c (&ascii, '.');
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str_append_c (&ascii, (cell >= 32 && cell < 127) ? cell : '.');
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}
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}
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row_buffer_append (&buf, ascii.str, row_attrs);
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row_buffer_append (buf, ascii.str, attrs);
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str_free (&ascii);
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}
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move (y, 0);
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app_flush_buffer (&buf, COLS, row_attrs);
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static void
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app_draw_view (void)
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{
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move (0, 0);
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int64_t end_addr = g_ctx.data_offset + g_ctx.data_len;
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for (int y = 0; y < app_visible_rows (); y++)
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{
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int64_t addr = g_ctx.view_top + y * ROW_SIZE;
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if (addr >= end_addr)
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break;
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int attrs = (addr / ROW_SIZE & 1) ? APP_ATTR (ODD) : APP_ATTR (EVEN);
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struct row_buffer buf;
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row_buffer_init (&buf);
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app_make_row (&buf, addr, attrs);
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app_flush_buffer (&buf, COLS, attrs);
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}
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}
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@ -460,28 +462,22 @@ app_draw_footer (void)
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{
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move (app_visible_rows (), 0);
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// XXX: can we get rid of this and still make it look acceptable?
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chtype a_normal = APP_ATTR (BAR);
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chtype a_active = APP_ATTR (BAR_HL);
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struct row_buffer buf;
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row_buffer_init (&buf);
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row_buffer_append (&buf, APP_TITLE, a_normal);
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row_buffer_append (&buf, APP_TITLE, APP_ATTR (BAR));
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if (g_ctx.filename)
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{
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row_buffer_append (&buf, " ", a_normal);
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row_buffer_append (&buf, " ", APP_ATTR (BAR));
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char *filename = (char *) u8_strconv_from_locale (g_ctx.filename);
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row_buffer_append (&buf, filename, a_active);
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row_buffer_append (&buf, filename, APP_ATTR (BAR_HL));
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free (filename);
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}
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struct str right;
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str_init (&right);
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str_append_printf (&right, "%08" PRIx64 " ", g_ctx.view_cursor);
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str_append_printf (&right,
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"%s ", g_ctx.endianity == ENDIANITY_LE ? "LE" : "BE");
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str_append_printf (&right, " %08" PRIx64, g_ctx.view_cursor);
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str_append (&right, g_ctx.endianity == ENDIANITY_LE ? " LE " : " BE ");
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int64_t top = g_ctx.view_top;
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int64_t bot = g_ctx.view_top + app_visible_rows () * ROW_SIZE;
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@ -503,9 +499,9 @@ app_draw_footer (void)
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str_append_printf (&right, "%2d%%", (int) (100 * cur / max));
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}
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row_buffer_align (&buf, COLS - right.len, a_normal);
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row_buffer_append (&buf, right.str, a_normal);
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app_flush_buffer (&buf, COLS, a_normal);
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row_buffer_align (&buf, COLS - right.len, APP_ATTR (BAR));
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row_buffer_append (&buf, right.str, APP_ATTR (BAR));
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app_flush_buffer (&buf, COLS, APP_ATTR (BAR));
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int64_t end_addr = g_ctx.data_offset + g_ctx.data_len;
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if (g_ctx.view_cursor < g_ctx.data_offset
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@ -585,16 +581,18 @@ app_on_refresh (void *user_data)
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static bool
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app_fix_view_range (void)
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{
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if (g_ctx.view_top < g_ctx.data_offset / ROW_SIZE * ROW_SIZE)
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int64_t data_view_start = g_ctx.data_offset / ROW_SIZE * ROW_SIZE;
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if (g_ctx.view_top < data_view_start)
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{
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g_ctx.view_top = g_ctx.data_offset / ROW_SIZE * ROW_SIZE;
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g_ctx.view_top = data_view_start;
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app_invalidate ();
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return false;
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}
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// If the contents are at least as long as the screen, always fill it
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int64_t max_view_top = ((g_ctx.data_offset + g_ctx.data_len - 1)
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/ ROW_SIZE - app_visible_rows () + 1) * ROW_SIZE;
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int64_t last_byte = g_ctx.data_offset + g_ctx.data_len - 1;
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int64_t max_view_top =
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(last_byte / ROW_SIZE - app_visible_rows () + 1) * ROW_SIZE;
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// But don't let that suggest a negative offset
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max_view_top = MAX (max_view_top, 0);
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@ -623,14 +621,14 @@ app_ensure_selection_visible (void)
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if (too_high > 0)
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app_scroll (-too_high);
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int too_low = g_ctx.view_cursor / ROW_SIZE
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- (g_ctx.view_top / ROW_SIZE + app_visible_rows () - 1);
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int too_low = g_ctx.view_cursor / ROW_SIZE - g_ctx.view_top / ROW_SIZE
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- app_visible_rows () + 1;
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if (too_low > 0)
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app_scroll (too_low);
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}
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static bool
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app_move_selection (int diff)
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app_move_cursor_by_rows (int diff)
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{
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// TODO: disallow partial up/down movement
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int64_t fixed = g_ctx.view_cursor += diff * ROW_SIZE;
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@ -649,23 +647,12 @@ app_move_selection (int diff)
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enum action
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{
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ACTION_NONE,
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ACTION_QUIT,
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ACTION_REDRAW,
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ACTION_NONE, ACTION_QUIT, ACTION_REDRAW, ACTION_TOGGLE_ENDIANITY,
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ACTION_TOGGLE_ENDIANITY,
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ACTION_SCROLL_UP, ACTION_GOTO_TOP, ACTION_GOTO_PAGE_PREVIOUS,
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ACTION_SCROLL_DOWN, ACTION_GOTO_BOTTOM, ACTION_GOTO_PAGE_NEXT,
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ACTION_SCROLL_UP,
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ACTION_SCROLL_DOWN,
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ACTION_GOTO_TOP,
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ACTION_GOTO_BOTTOM,
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ACTION_GOTO_PAGE_PREVIOUS,
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ACTION_GOTO_PAGE_NEXT,
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ACTION_UP,
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ACTION_DOWN,
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ACTION_LEFT,
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ACTION_RIGHT,
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ACTION_UP, ACTION_DOWN, ACTION_LEFT, ACTION_RIGHT,
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ACTION_COUNT
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};
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@ -677,31 +664,9 @@ app_process_action (enum action action)
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{
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switch (action)
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{
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case ACTION_QUIT:
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app_quit ();
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break;
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case ACTION_REDRAW:
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clear ();
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app_invalidate ();
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break;
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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case ACTION_TOGGLE_ENDIANITY:
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g_ctx.endianity = (g_ctx.endianity == ENDIANITY_LE)
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? ENDIANITY_BE : ENDIANITY_LE;
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app_invalidate ();
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break;
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// XXX: these should rather be parametrized
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case ACTION_SCROLL_UP:
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app_scroll (-1);
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break;
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case ACTION_SCROLL_DOWN:
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app_scroll (1);
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break;
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case ACTION_SCROLL_UP: app_scroll (-1); break;
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case ACTION_SCROLL_DOWN: app_scroll (1); break;
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case ACTION_GOTO_TOP:
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g_ctx.view_cursor = g_ctx.data_offset;
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@ -711,7 +676,7 @@ app_process_action (enum action action)
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break;
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case ACTION_GOTO_BOTTOM:
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if (!g_ctx.data_len)
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break;
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return false;
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g_ctx.view_cursor = g_ctx.data_offset + g_ctx.data_len - 1;
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g_ctx.view_skip_nibble = false;
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@ -721,19 +686,16 @@ app_process_action (enum action action)
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case ACTION_GOTO_PAGE_PREVIOUS:
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app_scroll (-app_visible_rows ());
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app_move_selection (-app_visible_rows ());
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app_move_cursor_by_rows (-app_visible_rows ());
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break;
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case ACTION_GOTO_PAGE_NEXT:
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app_scroll (app_visible_rows ());
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app_move_selection (app_visible_rows ());
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app_move_cursor_by_rows (app_visible_rows ());
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break;
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case ACTION_UP:
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app_move_selection (-1);
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break;
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case ACTION_DOWN:
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app_move_selection (1);
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break;
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case ACTION_UP: app_move_cursor_by_rows (-1); break;
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case ACTION_DOWN: app_move_cursor_by_rows (1); break;
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case ACTION_LEFT:
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if (g_ctx.view_skip_nibble)
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g_ctx.view_skip_nibble = false;
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@ -744,8 +706,8 @@ app_process_action (enum action action)
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g_ctx.view_skip_nibble = true;
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g_ctx.view_cursor--;
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}
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app_ensure_selection_visible ();
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}
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app_invalidate ();
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break;
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case ACTION_RIGHT:
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@ -758,17 +720,26 @@ app_process_action (enum action action)
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g_ctx.view_skip_nibble = false;
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g_ctx.view_cursor++;
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}
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app_ensure_selection_visible ();
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}
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app_invalidate ();
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break;
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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case ACTION_QUIT:
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app_quit ();
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case ACTION_NONE:
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break;
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case ACTION_REDRAW:
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clear ();
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app_invalidate ();
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break;
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case ACTION_TOGGLE_ENDIANITY:
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g_ctx.endianity = (g_ctx.endianity == ENDIANITY_LE)
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? ENDIANITY_BE : ENDIANITY_LE;
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app_invalidate ();
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break;
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default:
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beep ();
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return false;
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}
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return true;
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@ -809,7 +780,7 @@ app_process_left_mouse_click (int line, int column)
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return false;
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g_ctx.view_cursor = g_ctx.view_top + line * ROW_SIZE + offset;
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return app_move_selection (0);
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return app_move_cursor_by_rows (0);
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}
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return true;
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}
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@ -986,12 +957,13 @@ app_on_tty_readable (const struct pollfd *fd, void *user_data)
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{
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int y, x, button;
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termo_mouse_event_t type;
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bool success;
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if (termo_interpret_mouse (g_ctx.tk, &event, &type, &button, &y, &x))
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{
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if (!app_process_mouse (type, y, x, button))
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beep ();
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}
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else if (!app_process_termo_event (&event))
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success = app_process_mouse (type, y, x, button);
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else
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success = app_process_termo_event (&event);
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if (!success)
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beep ();
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}
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