kNCurses/Window.hpp

91 lines
3.4 KiB
C++

/**
* @brief `ncurses` window displaying contents of a pseudo terminal
* @author Christian Burger (christian@krikkel.de)
*/
#ifndef __WINDOW_H__
#define __WINDOW_H__
#include "SingleUserInput.hpp"
#include <cursesw.h>
#include <pty.h>
#include <vterm.h>
#include <string>
#include <thread>
#include <mutex>
#ifdef add_wch
inline void UNDEF(add_wch)(const cchar_t *character) { add_wch(character); }
#undef add_wch
#define add_wch UNDEF(add_wch)
#endif
#ifdef get_wch
inline void UNDEF(get_wch)(wint_t *character) { get_wch(character); }
#undef get_wch
#define get_wch UNDEF(get_wch)
#endif
namespace krikkel::NCursesPtyWindow
{
class Window : public NCursesWindow
{
public:
Window(std::mutex *writeToNCursesMutex, int lines, int columns, int y, int x);
~Window();
int getFdPtyClient() const;
void writeToClient(const char * string, size_t length);
void writeUnicodeCharToClient(wint_t character);
void writeKeyToClient(VTermKey key);
SingleUserInput readSingleUserInput();
int add_wch(const cchar_t *character);
int get_wch(wint_t *character);
int refresh() override;
int wresize(int rows, int cols);
private:
int fdPtyHost, fdPtyClient;
struct termios terminalParameters;
VTerm *pseudoTerminal;
std::mutex writeToPseudoTerminalMutex;
std::mutex *writeToNCursesMutex;
VTermScreen *pseudoTerminalScreen;
static VTermScreenCallbacks screenCallbacks;
/// @todo one line is at most 4096 chars long
static const uint16_t PTY_CLIENT_OUTPUT_BUFFER_SIZE = 2 * 4096;
char ptyClientOutputBuffer[PTY_CLIENT_OUTPUT_BUFFER_SIZE];
uint16_t cursorX, cursorY;
std::thread readPtyClientThread;
void readFromPtyClientThreadMethod();
void readFromPtyClient();
int handlerDamage(VTermRect rect);
int handlerMoveRect(VTermRect dest, VTermRect src);
int handlerMoveCursor(VTermPos pos, VTermPos oldpos, int visible);
int handlerSetTermProp(VTermProp prop, VTermValue *val);
int handlerBell();
int handlerResize(int rows, int cols);
int handlerPushLine(int cols, const VTermScreenCell *cells);
int handlerPopLine(int cols, VTermScreenCell *cells);
attr_t extractAttributesFromVTermCell(VTermScreenCell cell);
short extractColorFromVTermCell(VTermScreenCell cell);
void copyPtyCellToNCursesWindow(int x, int y);
static int staticHandlerDamage(VTermRect rect, void *user);
static int staticHandlerMoveRect(VTermRect dest, VTermRect src, void *user);
static int staticHandlerMoveCursor(VTermPos pos, VTermPos oldpos, int visible, void *user);
static int staticHandlerSetTermProp(VTermProp prop, VTermValue *val, void *user);
static int staticHandlerBell(void *user);
static int staticHandlerResize(int rows, int cols, void *user);
static int staticHandlerPushLine(int cols, const VTermScreenCell *cells, void *user);
static int staticHandlerPopLine(int cols, VTermScreenCell *cells, void *user);
static void staticHandlerOutput(const char *s, size_t len, void *user);
};
}
#endif // __WINDOW_H__