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/*
server/console.cc
This file is part of the Osirion project and is distributed under
the terms and conditions of the GNU General Public License version 2
*/
#include <iostream>
#include "server/console.h"
#include "core/core.h"
#include "sys/consoleinterface.h"
#ifdef HAVE_CURSES
#include <ncurses.h>
#endif
namespace server {
bool console_initialized = false;
bool console_updated = false;
Console server_console;
#ifdef HAVE_CURSES
WINDOW *stdwin;
#endif
Console *console()
{
return (&server_console);
}
void Console::init()
{
#ifdef HAVE_CURSES
stdwin = initscr(); // initialize the ncurses window
cbreak(); // disable input line buffering
noecho(); // don't show typed characters
keypad(stdwin, TRUE); // enable special keys
nodelay(stdwin, TRUE); // non-blocking input
curs_set(0); // disable cursor
console_initialized = true;
console_updated = true;
#endif // HAVE_CURSES
con_print << "Initializing console..." << std::endl;
#ifdef HAVE_CURSES
server_console.console_lastrefresh = 1;
server_console.draw();
#endif // HAVE_CURSES
}
void Console::shutdown()
{
con_print << "Shutting down console..." << std::endl;
#ifdef HAVE_CURSES
server_console.draw();
endwin();
console_initialized = false;
#endif
}
#ifdef HAVE_CURSES
void Console::resize()
{
if (!console_initialized)
return;
endwin();
refresh();
console_updated = true;
}
void Console::flush()
{
char line[MAXCMDSIZE];
while(consoleinterface_buffer.getline(line, MAXCMDSIZE-1)) {
while (consoleinterface_text.size() >= sys::MAXCONLINES) {
consoleinterface_text.pop_front();
}
consoleinterface_text.push_back(std::string(line));
console_updated = true;
}
consoleinterface_buffer.clear();
}
void Console::draw_background()
{
bkgdset(' ');
clear();
// draw version string
std::string versionstr("The Osirion Project ");
versionstr.append(core::version());
mvaddstr(0, stdwin->_maxx - 1 - versionstr.size(), versionstr.c_str());
}
void Console::draw_text()
{
int w = stdwin->_maxx;
int h = stdwin->_maxy;
if ((w < 3) || (h < 3))
return;
int y = h-1;
// draw console text
std::deque<std::string>::reverse_iterator rit = consoleinterface_text.rbegin();
while (rit != consoleinterface_text.rend() && y > 0) {
mvaddnstr(y, 0, (*rit).c_str(), w);
++rit;
y--;
}
}
void Console::draw()
{
flush();
if (console_lastrefresh < 0.1) {
return;
}
if (console_initialized && console_updated && stdwin->_maxx && stdwin->_maxy) {
draw_background();
draw_text();
wrefresh(stdwin);
console_updated = false;
console_lastrefresh = 0;
}
}
void Console::frame(float seconds)
{
if (!console_initialized)
return;
console_lastrefresh += seconds;
int key = wgetch(stdwin);
while (key != ERR) {
key = wgetch(stdwin);
}
draw();
}
#endif // HAVE_CURSES
}
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