mirror of
https://github.com/ibm-s390-linux/s390-tools.git
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b627b8d8e1
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
125 lines
2.6 KiB
C
125 lines
2.6 KiB
C
/*
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* hyptop - Show hypervisor performance data on System z
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*
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* Window "help": Show online help text.
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*
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* Copyright IBM Corp. 2010, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#include "helper.h"
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#include "hyptop.h"
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#include "sd.h"
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#include "table.h"
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#include "win_help.h"
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/*
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* Print help text to screen
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*/
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static void l_update_term(struct hyptop_win *win)
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{
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struct win_help *win_help = (struct win_help *) win;
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tbox_print(win_help->tb);
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}
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/*
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* Process input and switch window if necessary
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*/
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static enum hyptop_win_action l_process_input(struct hyptop_win *win, int c)
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{
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struct win_help *win_help = (struct win_help *) win;
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switch (c) {
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case 'h':
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case KEY_RETURN:
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case KEY_ENTER:
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case KEY_LEFT:
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case '?':
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case 'q':
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return win_back();
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case 'G':
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tbox_scroll_down(win_help->tb, TBOX_SCROLL_LAST);
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break;
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case 'g':
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tbox_scroll_up(win_help->tb, TBOX_SCROLL_LAST);
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break;
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case KEY_NPAGE:
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tbox_scroll_down(win_help->tb, TBOX_SCROLL_PAGE);
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break;
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case KEY_PPAGE:
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tbox_scroll_up(win_help->tb, TBOX_SCROLL_PAGE);
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break;
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case 'k':
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case KEY_UP:
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tbox_scroll_up(win_help->tb, TBOX_SCROLL_LINE);
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break;
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case 'j':
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case KEY_DOWN:
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tbox_scroll_down(win_help->tb, TBOX_SCROLL_LINE);
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break;
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case ERR:
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return WIN_KEEP;
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default:
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break;
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}
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hyptop_update_term();
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return WIN_KEEP;
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}
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/*
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* Event loop: wait for input and print help text
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*/
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static void l_run(struct hyptop_win *win)
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{
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(void) win;
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while (1) {
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hyptop_update_term();
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if (hyptop_process_input() == WIN_SWITCH)
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return;
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}
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}
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/*
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* Add text to text box
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*/
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static void l_add_text(struct tbox *tb, const char *str)
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{
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char *line, *line_end, *str_cpy;
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str_cpy = line_end = ht_strdup(str);
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for (line = str_cpy; line_end != NULL; line = line_end + 1) {
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line_end = strchr(line, '\n');
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if (line_end)
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*line_end = 0;
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tbox_line_add(tb, line);
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}
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ht_free(str_cpy);
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}
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/*
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* Create new help window for "win" and init window description
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*/
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struct hyptop_win *win_help_new(struct hyptop_win *win)
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{
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struct win_help *win_help;
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win_help = ht_zalloc(sizeof(*win_help));
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win_help->tb = tbox_new();
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tbox_printf(win_help->tb, "\\BWindow: %s\\B", win->id);
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tbox_printf(win_help->tb, " ");
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l_add_text(win_help->tb, win->desc);
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nav_desc_add(win_help->tb, win->desc_normal_vec, win->desc_select_vec,
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win->desc_general_vec);
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tbox_finish(win_help->tb);
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win_help->win.process_input = l_process_input;
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win_help->win.update_term = l_update_term;
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win_help->win.run = l_run;
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return (struct hyptop_win *) win_help;
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}
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