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screen.c
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screen.c
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#include "screen.h"
#include <unistd.h>
#include <string.h>
#include <time.h>
#define STATUS_LINE_COUNT 2
#define MAX_LINE_LEN 256
static size_t filename_len = 0;
static char *filename = NULL;
void display_infobox(haywire_state *app);
void display_logs(haywire_state *app, int maxrows);
void display_statusline(haywire_state *app, int maxrows);
void print_to_status(char *msg, short color);
int str_linecount(char *str, int linelen, int *x);
void time_status_print();
void bell_status_print(haywire_state *app);
void order_status_print(haywire_state *app);
/****************************
* Utility functions *
****************************/
void init_screen(haywire_state *app) {
app->screen.screen = initscr();
noecho();
nonl();
halfdelay(app->update_delay);
keypad(app->screen.screen, TRUE);
clear();
curs_set(0);
if(has_colors() == FALSE) {
endwin();
exit_with_error("Your terminal does not support color");
}
start_color();
use_default_colors();
init_pair(LOG_RED,COLOR_RED,-1);
init_pair(LOG_YELLOW,COLOR_YELLOW,-1);
init_pair(LOG_GREEN,COLOR_GREEN,-1);
refresh();
}
int str_linecount(char *str, int linelen, int *x) {
int lines = 1;
while(*str != '\0') {
if (*str == '\n') {
++lines;
*x = 0;
} else {
++(*x);
if (*x >= linelen) {
++lines;
*x = 0;
}
}
++str;
}
return lines;
}
int list_row_count(haywire_state *app) {
int x = 0;
int maxrows = 0;
getmaxyx(app->screen.screen, maxrows, x);
if (app->screen.show_info) maxrows -= app->screen.infobox_size;
return maxrows - STATUS_LINE_COUNT;
}
/****************************
* Main rendering functions *
****************************/
static const char location_text[] = "Location:";
static const char referer_text[] = "Referer:";
static const char stack_trace_text[] = "Stack Trace:";
void refresh_screen(haywire_state *app) {
display_infobox(app);
int maxrows = list_row_count(app);
display_logs(app, maxrows);
display_statusline(app, maxrows);
}
void display_logs(haywire_state *app, int maxrows) {
move(1, 0);
standout();
hline(' ', getmaxx(app->screen.screen));
printw(" TIME CNT MSG");
standend();
int skip = app->scroll;
int i = 0;
logerror *err = app->log->errors;
while(err != NULL) {
if (skip > 0) {
--skip;
} else if (i < maxrows) {
print_error(app, err, app->screen.show_info && err == app->selected, i+2);
++i;
} else {
break;
}
err = err->next;
}
refresh();
}
/* Displays the infobox and updates into the app state the size of it in rows */
void display_infobox(haywire_state *app) {
int infobox_size = 0;
if (!app->screen.show_info || app->selected == NULL) return;
int cols,rows;
cols=rows=0;
getmaxyx(app->screen.screen, rows, cols);
int x = 0;
size_t msg_lines = str_linecount(app->selected->msg, cols, &x);
x = sizeof(location_text);
size_t filename_lines = str_linecount(app->selected->filename, cols, &x);
size_t linenr_length = 1;
int i = app->selected->linenr;
while(i > 10) { i /= 10; ++linenr_length; }
if (x + linenr_length + 1 > cols) ++filename_lines;
size_t referer_lines = 0;
if (app->selected->latest_occurrence->referer != NULL) {
x = 0; //sizeof(referer_text);
referer_lines = str_linecount(app->selected->latest_occurrence->referer, cols, &x) + 1;
}
size_t stack_trace_lines = 0;
if (app->selected->latest_occurrence->stack_trace != NULL) {
x = 0; //sizeof(stack_trace_text);
stack_trace_lines = str_linecount(app->selected->latest_occurrence->stack_trace, cols, &x) + 1;
}
infobox_size = 1+msg_lines+filename_lines+referer_lines+stack_trace_lines;
int y = rows-infobox_size;
move(y, 0);
standout();
hline(' ', cols);
mvprintw(y, 0, " Selected message:");
mvprintw(y, cols-23, " (Toggle info using i)");
standend();
mvprintw(++y, 0, "%s", app->selected->msg);
y += msg_lines;
if (referer_lines) {
attron(A_BOLD);
mvprintw(y, 0, "%s ", referer_text);
attroff(A_BOLD);
mvprintw(y+1, 0, "%s", app->selected->latest_occurrence->referer);
y += referer_lines;
}
if (stack_trace_lines) {
attron(A_BOLD);
mvprintw(y, 0, "%s ", stack_trace_text);
attroff(A_BOLD);
mvprintw(y+1, 0, "%s", app->selected->latest_occurrence->stack_trace);
y += stack_trace_lines;
}
attron(A_BOLD);
mvprintw(y, 0, "%s ", location_text);
attroff(A_BOLD);
printw("%s:%d", app->selected->filename, app->selected->linenr);
//printw("%d", infobox_size);
app->screen.infobox_size = infobox_size;
}
/****************************
* Status line drawing *
****************************/
int status_x = 0;
void display_statusline(haywire_state *app, int maxrows) {
status_x = getmaxx(app->screen.screen);
bell_status_print(app);
print_to_status(" - ", 0);
order_status_print(app);
print_to_status(" - ", 0);
time_status_print();
int bottomitem = app->scroll + maxrows;
int itemcount = errorlist_count(app->log);
if (bottomitem > itemcount) bottomitem = itemcount;
int scroll = app->scroll + 1;
if (itemcount == 0) scroll = 0;
move(0,0);
printw("%d-%d of %d", scroll, bottomitem, itemcount);
if (app->screen.status_line_printer != NULL) {
(*app->screen.status_line_printer)(app, getcury(app->screen.screen), getcurx(app->screen.screen));
}
}
void print_to_status(char *msg, short color) {
if (msg == NULL) return;
status_x -= strlen(msg);
if (color) attron(COLOR_PAIR(color));
mvprintw(0,status_x, msg);
if (color) attroff(COLOR_PAIR(color));
}
void time_status_print() {
char timestr[40] = "";
time_t t = time(NULL);
struct tm now;
localtime_r(&t, &now);
strftime(timestr, sizeof(timestr), "%H:%M %d %b %Y", &now);
print_to_status(timestr, 0);
}
void order_status_print(haywire_state *app) {
print_to_status(" ", 0);
int sort = app->log->sorting;
if (sort < 0) {
print_to_status(" REVERSED", 0);
sort = -sort;
}
switch(sort) {
case SORT_TYPE:
print_to_status("ERRORTYPE", 0); break;
case SORT_DATE:
print_to_status("DATE", 0); break;
case SORT_COUNT:
print_to_status("COUNT", 0); break;
}
print_to_status("SORT: ", 0);
}
void bell_status_print(haywire_state *app) {
char *errtype = NULL;
short color = 0;
if (app->bell_type != NO_BELL) {
switch(app->bell_level) {
case E_PARSE:
color = LOG_RED;
errtype = "FATAL ERRORS";
break;
case E_NOTICE:
color = LOG_YELLOW;
errtype = "PHP ERRORS";
break;
case E_MISSING_FILE:
color = LOG_GREEN;
errtype = "ERRORS AND 404's";
break;
}
print_to_status(errtype, color);
if (app->bell_type == BELL_ON_NEW_ERRORTYPE) {
print_to_status("NEW ", color);
} else {
print_to_status("ALL ", color);
}
print_to_status("BELL: ", 0);
} else {
print_to_status("BELL: NONE", 0);
}
}
/* Ring the terminal bell according to app settings */
void ring_bells(haywire_state *app) {
logfile *log = app->log;
if (app->bell_type == BELL_ON_NEW_ERROR && log->worstNewLine && log->worstNewLine <= app->bell_level) {
beep();
} else if (app->bell_type == BELL_ON_NEW_ERRORTYPE && log->worstNewType && log->worstNewType <= app->bell_level) {
beep();
}
log->worstNewLine = 0;
log->worstNewType = 0;
}
/****************************
* Log file printing *
****************************/
void print_error(haywire_state *app, logerror *err, int selected, int row) {
logerror_nicepath(err, app->relative_path, &filename, &filename_len);
short color = 0;
char linebuffer[MAX_LINE_LEN] = "";
switch(err->type) {
case E_ERROR:
case E_PARSE:
color = LOG_RED;
break;
case E_WARNING:
case E_NOTICE:
color = LOG_YELLOW;
break;
default:
color = LOG_GREEN;
}
attron(COLOR_PAIR(color));
if (selected) standout();
snprintf(linebuffer, sizeof(linebuffer), "%s %3d %s: %s:%d %*s", get_log_time(err->latest_occurrence), err->count, err->msg, filename, err->linenr, (int)(sizeof(linebuffer)), "");
move(row, 0);
addnstr(linebuffer, getmaxx(app->screen.screen));
if (selected) standend();
attroff(COLOR_PAIR(color));
}