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client: add display functions

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This commit is contained in:
Tim Kourt 2017-03-23 11:05:33 -07:00 committed by Denis Kenzior
parent 32315338ae
commit 52b878c24f
2 changed files with 109 additions and 0 deletions
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104
client/display.c
View File

@ -39,6 +39,110 @@ static struct l_io *io;
static char dashed_line[LINE_LEN];
static char empty_line[LINE_LEN];
struct saved_input {
char *line;
int point;
};
static struct saved_input *save_input(void)
{
struct saved_input *input;
if (RL_ISSTATE(RL_STATE_DONE))
return NULL;
input = l_new(struct saved_input, 1);
input->point = rl_point;
input->line = rl_copy_text(0, rl_end);
rl_save_prompt();
rl_replace_line("", 0);
rl_redisplay();
return input;
}
static void restore_input(struct saved_input *input)
{
if (!input)
return;
rl_restore_prompt();
rl_replace_line(input->line, 0);
rl_point = input->point;
rl_forced_update_display();
l_free(input->line);
l_free(input);
}
static void display_text(const char *text)
{
struct saved_input *input = save_input();
printf("%s", text);
restore_input(input);
}
void display(const char *fmt, ...)
{
va_list args;
char *text;
va_start(args, fmt);
text = l_strdup_vprintf(fmt, args);
va_end(args);
display_text(text);
l_free(text);
}
void display_error(const char *error)
{
char *text = l_strdup_printf(COLOR_RED "%s\n" COLOR_OFF, error);
display_text(text);
l_free(text);
}
void display_table_header(const char *caption, const char *fmt, ...)
{
va_list args;
char *text;
char *body;
int caption_pos =
(int) ((sizeof(dashed_line) - 1) / 2 + strlen(caption) / 2);
text = l_strdup_printf("%*s\n", caption_pos, caption);
display_text(text);
l_free(text);
text = l_strdup_printf("%s%s%s\n", COLOR_GRAY, dashed_line, COLOR_OFF);
display_text(text);
l_free(text);
va_start(args, fmt);
text = l_strdup_vprintf(fmt, args);
va_end(args);
body = l_strdup_printf("%s%s%s\n", COLOR_BOLDGRAY, text, COLOR_OFF);
display_text(body);
l_free(body);
l_free(text);
text = l_strdup_printf("%s%s%s\n", COLOR_GRAY, dashed_line, COLOR_OFF);
display_text(text);
l_free(text);
}
void display_table_footer(void)
{
display_text("\n");
}
static void readline_callback(char *prompt)
{
l_free(prompt);

5
client/display.h
View File

@ -29,6 +29,11 @@
#define CLEAR_SCREEN "\033[2J"
#define MARGIN " "
void display(const char *format, ...);
void display_table_header(const char *caption, const char *fmt, ...);
void display_table_footer(void);
void display_error(const char *error);
void display_enable_cmd_prompt(void);
void display_disable_cmd_prompt(void);