ctk-vncserver.c

一个小的RTOS具有UIP网络功能

  posy = win->y + 2;

  if(w == win->focused) {
    focus |= CTK_FOCUS_WIDGET;
  }
  
  draw_widget(w, posx, posy,
	      posx + win->w,
	      posy + win->h,
	      clipy1, clipy2,
	      focus);

  if(w->type != CTK_WIDGET_ICON) {
    update_area(posx + w->x,
		posy + w->y, w->w + 2, w->h);
  } else {
    icon = (struct ctk_icon *)w;

    len = strlen(icon->title);
    x = posx + w->x;
    if(x + len >= sizex) {
      x = sizex - len;
    }

    update_area(x, posy + w->y, len > 4? len: 4, w->h);    
  }
  
#ifdef CTK_CONIO_CONF_UPDATE
  CTK_CONIO_CONF_UPDATE();
#endif /* CTK_CONIO_CONF_UPDATE */
}
/*-----------------------------------------------------------------------------------*/
/** 
 * Clear a window on the VNC screen. Called by the CTK module.
 *
 * \param window The window to be cleared.
 * \param focus The focus of the window.
 * \param clipy1 The lower y coordinate bound.
 * \param clipy2 The upper y coordinate bound.
 */
/*-----------------------------------------------------------------------------------*/
void
ctk_draw_clear_window(struct ctk_window *window,
		      unsigned char focus,
		      unsigned char clipy1,
		      unsigned char clipy2)
{
  unsigned char i;
  unsigned char h;
  /*
  if(focus & CTK_FOCUS_WINDOW){
    textcolor(WINDOWCOLOR_FOCUS);
  } else {
    textcolor(WINDOWCOLOR);
    }*/
  textcolor(VNC_OUT_WINDOWCOLOR + focus);
  
  h = window->y + 2 + window->h;
  /* Clear window contents. */
  for(i = window->y + 2; i < h; ++i) {
    if(i >= clipy1 && i < clipy2) {
      cclearxy(window->x + 1, i, window->w);
    }
  }

  update_area(window->x + 1, window->y + 2, window->w, window->h);
}
/*-----------------------------------------------------------------------------------*/
static void
draw_window_contents(struct ctk_window *window, unsigned char focus,
		     unsigned char clipy1, unsigned char clipy2,
		     unsigned char x1, unsigned char x2,
		     unsigned char y1, unsigned char y2)
{
  struct ctk_widget *w;
  unsigned char wfocus;
  
  /* Draw inactive widgets. */
  for(w = window->inactive; w != NULL; w = w->next) {
    draw_widget(w, x1, y1, x2, y2,
		clipy1, clipy2,
		focus);
  }
  
  /* Draw active widgets. */
  for(w = window->active; w != NULL; w = w->next) {  
    wfocus = focus;
    if(w == window->focused) {
      wfocus |= CTK_FOCUS_WIDGET;
    }

   draw_widget(w, x1, y1, x2, y2, 
	       clipy1, clipy2,
	       wfocus);
  }

#ifdef CTK_CONIO_CONF_UPDATE
  CTK_CONIO_CONF_UPDATE();
#endif /* CTK_CONIO_CONF_UPDATE */

}
/*-----------------------------------------------------------------------------------*/
/** 
 * Draw a window on the VNC screen. Called by the CTK module.
 *
 * \param window The window to be drawn.
 * \param focus The focus of the window.
 * \param clipy1 The lower y coordinate bound.
 * \param clipy2 The upper y coordinate bound.
 */
/*-----------------------------------------------------------------------------------*/
void
ctk_draw_window(struct ctk_window *window, unsigned char focus,
		unsigned char clipy1, unsigned char clipy2)
{
  unsigned char x, y;
  unsigned char h;
  unsigned char x1, y1, x2, y2;
  unsigned char i;
  

  if(window->y + 1 >= clipy2) {
    return;
  }
    
  x = window->x;
  y = window->y + 1;

  textcolor(VNC_OUT_WINDOWCOLOR + focus);
  /*  if(focus & CTK_FOCUS_WINDOW) {
    textcolor(WINDOWCOLOR_FOCUS);
  } else {
    textcolor(WINDOWCOLOR);
    }*/

  x1 = x + 1;
  y1 = y + 1;
  x2 = x1 + window->w;
  y2 = y1 + window->h;

  /* Draw window frame. */  
  if(y >= clipy1) {
    cputcxy(x, y, CH_ULCORNER);
    for(i = wherex() + window->titlelen + 2; i < x2; ++i) {
      cputcxy(i, y, CH_TITLEBAR);
    }
    cputcxy(x2, y, CH_URCORNER);
  }

  h = window->h;
  
  if(clipy1 > y1) {
    if(clipy1 - y1 < h) {
      h = clipy1 - y1;
            y1 = clipy1;
    } else {
      h = 0;
    }
  }

  if(clipy2 < y1 + h) {
    if(y1 >= clipy2) {
      h = 0;
    } else {
      h = clipy2 - y1;
    }
  }
  
  for(i = y1; i < y1 + h; ++i) {
    cputcxy(x, i, CH_WINDOWLBORDER);
    cputcxy(x2, i, CH_WINDOWRBORDER);
  }

  /*  cvlinexy(x, y1, h);
      cvlinexy(x2, y1, h);  */

  if(y + window->h >= clipy1 &&
     y + window->h < clipy2) {
    cputcxy(x, y2, CH_LLCORNER);
    for(i = x1; i < x2; ++i) {
      cputcxy(i, y2, CH_WINDOWLOWERBORDER);
    }
    /*    chlinexy(x1, y2, window->w);*/
    cputcxy(x2, y2, CH_LRCORNER);
  }

  draw_window_contents(window, focus & CTK_FOCUS_WINDOW, clipy1, clipy2,
		       x1, x2, y + 1, y2);

  update_area(window->x, window->y, window->w + 2, window->h + 2);
}
/*-----------------------------------------------------------------------------------*/
/** 
 * Draw a dialog on the VNC screen. Called by the CTK module.
 *
 * \param dialog The dialog to be drawn.
 */
/*-----------------------------------------------------------------------------------*/
void
ctk_draw_dialog(struct ctk_window *dialog)
{
  unsigned char x, y;
  unsigned char i;
  unsigned char x1, y1, x2, y2;

  /*  textcolor(DIALOGCOLOR);*/
  textcolor(VNC_OUT_WINDOWCOLOR + CTK_FOCUS_DIALOG);

  x = dialog->x;
  y = dialog->y + 1;


  x1 = x + 1;
  y1 = y + 1;
  x2 = x1 + dialog->w;
  y2 = y1 + dialog->h;


  /* Draw dialog frame. */
  
  for(i = y1; i < y1 + dialog->h; ++i) {
    cputcxy(x, i, CH_DIALOGLBORDER);
    cputcxy(x2, i, CH_DIALOGRBORDER);
  }
  /*  cvlinexy(x, y1,
	   dialog->h);
  cvlinexy(x2, y1,
  dialog->h);*/

  
  for(i = x1; i < x2; ++i) {
    cputcxy(i, y, CH_DIALOGUPPERBORDER);
    cputcxy(i, y2, CH_DIALOGLOWERBORDER);
  }
    /*  chlinexy(x1, y,
	   dialog->w);
  chlinexy(x1, y2,
  dialog->w);*/

  cputcxy(x, y, CH_DIALOG_ULCORNER);
  cputcxy(x, y2, CH_DIALOG_LLCORNER);
  cputcxy(x2, y, CH_DIALOG_URCORNER);
  cputcxy(x2, y2, CH_DIALOG_LRCORNER);
  
  
  /* Clear dialog contents. */
  for(i = y1; i < y2; ++i) {
    cclearxy(x1, i, dialog->w);
  }

  draw_window_contents(dialog, CTK_FOCUS_DIALOG, 0, sizey,
		       x1, x2, y1, y2);

  update_area(dialog->x, dialog->y, dialog->w + 4, dialog->h + 4);
}
/*-----------------------------------------------------------------------------------*/
/** 
 * Clear parts of the VNC desktop. Called by the CTK module.
 *
 * \param y1 The lower y coordinate bound.
 * \param y2 The upped y coordinate bound.
 */
/*-----------------------------------------------------------------------------------*/
void
ctk_draw_clear(unsigned char y1, unsigned char y2)
{
  unsigned char i;

  textcolor(VNC_OUT_BACKGROUNDCOLOR);
  for(i = y1; i < y2; ++i) {
    cclearxy(0, i, sizex);
  }

  update_area(0, y1, sizex, y2 - y1);
}
/*-----------------------------------------------------------------------------------*/
/** \internal
 * Draw one menu on the VNC desktop.
 *
 * \param m The CTK menu to be drawn.
 */
/*-----------------------------------------------------------------------------------*/
static void
draw_menu(struct ctk_menu *m)
{
  unsigned char x, x2, y;

  textcolor(VNC_OUT_MENUCOLOR);
  x = wherex();
  cputs(m->title);
  cputc(' ');
  x2 = wherex();
  if(x + CTK_CONF_MENUWIDTH > sizex) {
    x = sizex - CTK_CONF_MENUWIDTH;
  }
  
  
  for(y = 0; y < m->nitems; ++y) {
    if(y == m->active) {
      textcolor(VNC_OUT_ACTIVEMENUCOLOR);
      revers(0);
    } else {
      textcolor(VNC_OUT_MENUCOLOR);	  
    }
    gotoxy(x, y + 1);
    if(m->items[y].title[0] == '-') {
      chline(CTK_CONF_MENUWIDTH);
    } else {
      cputs(m->items[y].title);
    }
    if(x + CTK_CONF_MENUWIDTH > wherex()) {
      cclear(x + CTK_CONF_MENUWIDTH - wherex());
    }
    revers(1);
  }
  
  gotoxy(x2, 0);
  textcolor(VNC_OUT_MENUCOLOR);  

  update_area(x, 0, CTK_CONF_MENUWIDTH, m->nitems + 1);
}
/*-----------------------------------------------------------------------------------*/
/** 
 * Draw the menus on the virtual VNC desktop. Called by the CTK module.
 *
 * \param menus The CTK menubar.
 */
/*-----------------------------------------------------------------------------------*/
void
ctk_draw_menus(struct ctk_menus *menus)
{
  struct ctk_menu *m;  

  
  /* Draw menus */
  textcolor(VNC_OUT_MENUCOLOR);
  gotoxy(0, 0);
  revers(1);
  cputc(' ');
  for(m = menus->menus->next; m != NULL; m = m->next) {
    if(m != menus->open) {
      update_area(wherex(), 0, strlen(m->title) + 1, 1);
      cputs(m->title);
      cputc(' ');
    } else {
      draw_menu(m);
    }
  }


  if(wherex() + strlen(menus->desktopmenu->title) + 1>= sizex) {
    gotoxy(sizex - strlen(menus->desktopmenu->title) - 1, 0);
  } else {
    cclear(sizex - wherex() -
	   strlen(menus->desktopmenu->title) - 1);
    update_area(wherex(), 0, sizex - wherex() -
		strlen(menus->desktopmenu->title) - 1, 1);
  }
  
  /* Draw desktopmenu */
  if(menus->desktopmenu != menus->open) {
    update_area(wherex(), 0, strlen(menus->desktopmenu->title) + 1, 1);
    cputs(menus->desktopmenu->title);
    cputc(' ');
  } else {
    draw_menu(menus->desktopmenu);
  }

  revers(0);



}
/*-----------------------------------------------------------------------------------*/
/** 
 * Obtain the height of the VNC desktop. Called by the CTK module.
 *
 * \return The height of the VNC desktop, in characters.
 */
/*-----------------------------------------------------------------------------------*/
unsigned char
ctk_draw_height(void)
{
  return sizey;
}
/*-----------------------------------------------------------------------------------*/
/** 
 * Obtain the height of the VNC desktop. Called by the CTK module.
 *
 * \return The height of the VNC desktop, in characters.
 */
/*-----------------------------------------------------------------------------------*/
unsigned char
ctk_draw_width(void)
{
  return sizex;
}
/*-----------------------------------------------------------------------------------*/
/** \internal
 * Converts between ASCII and the VNC screen character encoding.
 */
/*-----------------------------------------------------------------------------------*/
static unsigned char
ascii2screen(unsigned char c)
{
  if(c == '|') {
    return 0x68;
  }
  if(c < 0x20) {
    return c + 0x60;
  }
  if(c > 0x20 && c < 0x40) {
    return c;
  }
  if(c >= 0x40 && c < 0x60) {
    return c;
  }
  if(c >= 0x60 && c < 0x80) {
    return c - 0x60;
  }
  if(c >= 0x80) {
    return c;
  }

  return 32;
}
/*-----------------------------------------------------------------------------------*/
/**
 * Draws a character on the virtual VNC screen. Called by the libconio module.
 *
 * \param c The character to be drawn.
 * \param xpos The x position of the character.
 * \param ypos The y position of the character.
 * \param reversedflag Determines if the character should be reversed or not.
 * \param color The color of the character.
 */
/*-----------------------------------------------------------------------------------*/
void
ctk_arch_draw_char(char c,
		   unsigned char xpos,
		   unsigned char ypos,
		   unsigned char reversedflag,
		   unsigned char color)
{

  vnc_out_update_screen(xpos, ypos, ascii2screen(c),
			color);
  /*  vnc_out_update_screen(xpos, ypos, c |
      (reversedflag? 0x80: 0));*/
}
/*-----------------------------------------------------------------------------------*/
/**
 * Checks the key press input queue to see if there are pending
 * keys. Called by the CTK module.
 *
 * \return Zero if no key presses are in buffer, non-zero if there are
 * key presses in input buffer.
 */
/*-----------------------------------------------------------------------------------*/
unsigned char
ctk_arch_keyavail(void)
{
  return vnc_out_keyavail();
}
/*-----------------------------------------------------------------------------------*/
/**
 * Retrieves key presses from the VNC client. Called by the CTK
 * module.
 *
 * \return The next key in the input queue.
 */
/*-----------------------------------------------------------------------------------*/
ctk_arch_key_t
ctk_arch_getkey(void)
{
  return vnc_out_getkey() & 0x7f;
}
/*-----------------------------------------------------------------------------------*/
/** \internal
 * The uIP event handler.
 */
/*-----------------------------------------------------------------------------------*/
static
DISPATCHER_UIPCALL(ctk_vncserver_appcall, state)
{
  static struct vnc_server_state *vs;
  DISPATCHER_UIPCALL_ARG(state);

  vs = (struct vnc_server_state *)(state);

  if(uip_connected()) {

    /* Since we've just been connected, the state pointer should be
       NULL and we need to allocate a new state object. If we have run
       out of memory for state objects, we'll have to abort the
       connection and return. */
    if(vs == NULL) {
      vs = alloc_state();
      if(vs == NULL) {
	uip_close();
	return;
      }
      dispatcher_markconn(uip_conn, (void *)vs);
    }
  } else if(uip_closed() || uip_aborted()) {
    if(vs != NULL) {
      dealloc_state(vs);
    }
    return;
  }
  vnc_server_appcall(vs);
}
/*-----------------------------------------------------------------------------------*/
LOADER_INIT_FUNC(ctk_vncserver_init, arg)
{
  u8_t i;

  arg_free(arg);
  
  if(id == EK_ID_NONE) {
    id = dispatcher_start(&p);
    dispatcher_uiplisten(HTONS(5900));

    for(i = 0; i < CTK_VNCSERVER_CONF_NUMCONNS; ++i) {
      conns[i].state = VNC_DEALLOCATED;
    }
  }
}
/*-----------------------------------------------------------------------------------*/