ctk-vncserver.c

一个小的RTOS具有UIP网络功能

/**
 * \file
 * The ctk-draw implementation for the CTK VNC server.
 * \author Adam Dunkels <[e-mail]>
 *
 *
 */

/*
 * Copyright (c) 2003, Adam Dunkels.
 * All rights reserved. 
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 * 1. Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution. 
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior
 *    written permission.  
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
 *
 * This file is part of the "ctk" console GUI toolkit for cc65
 *
 * $Id: ctk-vncserver.c,v 1.5 2003/09/02 21:47:27 adamdunkels Exp $
 *
 */

#include "ctk.h"
#include "ctk-draw.h"

#include "dispatcher.h"
#include "loader.h"
#include "vnc-server.h"
#include "vnc-out.h"

#include "ctk-vncserver.h"
#include "ctk-vncserver-conf.h"

static unsigned char sizex, sizey;

#define CH_ULCORNER 0x00
#define CH_TITLEBAR 0x01
#define CH_URCORNER 0x02
#define CH_WINDOWRBORDER 0x03
#define CH_LRCORNER 0x04
#define CH_WINDOWLOWERBORDER 0x05
#define CH_LLCORNER 0x06
#define CH_WINDOWLBORDER 0x07

#define CH_DIALOG_ULCORNER 0x12
#define CH_DIALOGUPPERBORDER 0x09
#define CH_DIALOG_URCORNER 0x0a
#define CH_DIALOGRBORDER 0x0b
#define CH_DIALOG_LRCORNER 0x0c
#define CH_DIALOGLOWERBORDER 0x0d
#define CH_DIALOG_LLCORNER 0x0e
#define CH_DIALOGLBORDER 0x0f

#define CH_BUTTONLEFT  0x10
#define CH_BUTTONRIGHT 0x11

#define CH_SEPARATOR   0x13

#include "libconio.h"

#define SCREENCOLOR         0
#define BORDERCOLOR         1

#define WIDGETCOLOR         2
#define WIDGETCOLOR_FWIN    3
#define WIDGETCOLOR_FOCUS   4
#define WIDGETCOLOR_DIALOG  5
#define WIDGETCOLOR_HLINK   6
#define WIDGETCOLOR_HLINK_FOCUS   7

#define WINDOWCOLOR         8
#define WINDOWCOLOR_FOCUS   9

#define WINDOWBORDER        10
#define WINDOWBORDER_FOCUS  11

#define DIALOGCOLOR         12

#define OPENMENUCOLOR       13

#define ACTIVEMENUITEMCOLOR 14

#define MENUCOLOR           15

static DISPATCHER_UIPCALL(ctk_vncserver_appcall, state);

static struct dispatcher_proc p =
  {DISPATCHER_PROC("CTK VNC server", NULL, NULL,
		   ctk_vncserver_appcall)};
static ek_id_t id;

static struct vnc_server_state conns[CTK_VNCSERVER_CONF_NUMCONNS];

#define PRINTF(x) 

#define revers(x)


/*-----------------------------------------------------------------------------------*/
/**
 * Add an update request from a client to the list of pending updates
 * for the connection.
 *
 * This function is called from the vnc-out module.
 *
 * \param vs The VNC connection state.
 * \param a The area that is requested to be updated.
 */
/*-----------------------------------------------------------------------------------*/
void
vnc_server_update_add(struct vnc_server_state *vs,
		      struct vnc_server_update *a)
{
  /* XXX: test both head and tail placement!*/
  a->next = vs->updates_pending;
  vs->updates_pending = a;
}
/*-----------------------------------------------------------------------------------*/
/**
 * Allocate an update request from the VNC connection state.
 *
 * This function is called from the vnc-out module.
 *
 * \param vs The VNC connection state.
 *
 * \return Memory for an update structure, or NULL if no update could
 * be allocated.
 */
/*-----------------------------------------------------------------------------------*/
struct vnc_server_update *
vnc_server_update_alloc(struct vnc_server_state *vs)
{
  struct vnc_server_update *a;

  a = vs->updates_free;
  if(a == NULL) {
    return NULL;
  }
  vs->updates_free = a->next;
  a->next = NULL;
  return a;
}
/*-----------------------------------------------------------------------------------*/
/**
 * Deallocate an update request from the VNC connection state.
 *
 * This function is called from the vnc-out module.
 *
 * \param vs The VNC connection state.
 *
 * \param a The update structure to be deallocated.
 */
/*-----------------------------------------------------------------------------------*/
void
vnc_server_update_free(struct vnc_server_state *vs,
		       struct vnc_server_update *a)
{
  a->next = vs->updates_free;
  vs->updates_free = a;
}
/*-----------------------------------------------------------------------------------*/
/**
 * Dequeue the first update on the queue of updates.
 *
 * This function is called from the vnc-out module.
 *
 * \param vs The VNC connection state.
 *
 * \return The first update on the queue, or NULL if the queue is empty.
 */
/*-----------------------------------------------------------------------------------*/
struct vnc_server_update *
vnc_server_update_dequeue(struct vnc_server_state *vs)
{
  struct vnc_server_update *a;

  a = vs->updates_pending;
  if(a == NULL) {
    return a;
  }
  vs->updates_pending = a->next;
  a->next = NULL;
  return a;
}
/*-----------------------------------------------------------------------------------*/
/**
 * Remove a specific update on the queue of updates.
 *
 * \param vs The VNC connection state.
 * \param a The update to be removed.
 */
/*-----------------------------------------------------------------------------------*/
void
vnc_server_update_remove(struct vnc_server_state *vs,
			 struct vnc_server_update *a)
{
  struct vnc_server_update *b, *c;

  if(a == vs->updates_pending) {
    vs->updates_pending = a->next;
  } else {
    b = vs->updates_pending;
    for(c = vs->updates_pending; c != a; b = c, c = c->next);

    b->next = a->next;
  }
}
/*-----------------------------------------------------------------------------------*/
/** \internal
 * Flag an area to be updated for all open VNC server connections.
 *
 */
/*-----------------------------------------------------------------------------------*/
static void
update_area(u8_t x, u8_t y, u8_t w, u8_t h)
{
  u8_t i;
  
  if(h == 0 || w == 0) {
    return;
  }
  
  /* Update for all active VNC connections. */
  for(i = 0; i < CTK_VNCSERVER_CONF_NUMCONNS; ++i) {
    if(conns[i].state != VNC_DEALLOCATED) {
      vnc_out_update_area(&conns[i],
			  x, y, w, h);
    }
  }

}
/*-----------------------------------------------------------------------------------*/
/** \internal
 * Allocate a VNC server connection state from the array of available
 * VNC connection states.
 */
/*-----------------------------------------------------------------------------------*/
static struct vnc_server_state *
alloc_state(void)
{
  u8_t i;
  for(i = 0; i < CTK_VNCSERVER_CONF_NUMCONNS; ++i) {
    if(conns[i].state == VNC_DEALLOCATED) {
      return &conns[i];
    }
  }

  /* We are overloaded! XXX: we'll just kick all other connections! */
  for(i = 0; i < CTK_VNCSERVER_CONF_NUMCONNS; ++i) {
    conns[i].state = VNC_DEALLOCATED;
  }
  
  return NULL;
}
/*-----------------------------------------------------------------------------------*/
/** \internal
 * Deallocate a VNC connection state.
 */
/*-----------------------------------------------------------------------------------*/
static void
dealloc_state(struct vnc_server_state *s)
{
  s->state = VNC_DEALLOCATED;
}
/*-----------------------------------------------------------------------------------*/
static char tmp[40];
static void
cputsn(char *str, unsigned char len)
{
  strncpy(tmp, str, len);
  tmp[len] = 0;
  cputs(tmp);
}
/*-----------------------------------------------------------------------------------*/
/** 
 * Initialize the VNC ctk-draw module. Called by the CTK module.
 *
 */
/*-----------------------------------------------------------------------------------*/
void
ctk_draw_init(void)
{
  bgcolor(SCREENCOLOR);
  bordercolor(BORDERCOLOR);
  screensize(&sizex, &sizey);
  ctk_draw_clear(0, sizey);
}
/*-----------------------------------------------------------------------------------*/
static void
draw_widget(struct ctk_widget *w,
	    unsigned char x, unsigned char y,
	    unsigned char clipx,
	    unsigned char clipy,
	    unsigned char clipy1, unsigned char clipy2,
	    unsigned char focus)
{
  unsigned char xpos, ypos, xscroll;
  unsigned char i, j;
  unsigned char iconnum;
  char c, *text;
  unsigned char len;

  /*
  if(focus & CTK_FOCUS_WINDOW) {    
    textcolor(WIDGETCOLOR_FWIN);
    if(focus & CTK_FOCUS_WIDGET) {
      textcolor(WIDGETCOLOR_FOCUS);
    }
  } else if(focus & CTK_FOCUS_DIALOG) {
    textcolor(WIDGETCOLOR_DIALOG);
    if(focus & CTK_FOCUS_WIDGET) {
      textcolor(WIDGETCOLOR_FOCUS);
    }
  } else {
    textcolor(WIDGETCOLOR);
  }
*/  
  xpos = x + w->x;
  ypos = y + w->y;
    
  switch(w->type) {
  case CTK_WIDGET_SEPARATOR:
    textcolor(VNC_OUT_SEPARATORCOLOR + focus);
    if(ypos >= clipy1 && ypos < clipy2) {
      /*      chlinexy(xpos, ypos, w->w);*/
      gotoxy(xpos, ypos);
      for(i = 0; i < w->w; ++i) {
	cputc(CH_SEPARATOR);
      }
    }
    break;
  case CTK_WIDGET_LABEL:
    textcolor(VNC_OUT_LABELCOLOR + focus);
    text = w->widget.label.text;
    for(i = 0; i < w->h; ++i) {
      if(ypos >= clipy1 && ypos < clipy2) {
	gotoxy(xpos, ypos);
	cputsn(text, w->w);
	if(w->w - (wherex() - xpos) > 0) {
	  cclear(w->w - (wherex() - xpos));
	}
      }
      ++ypos;
      text += w->w;
    }
    break;
  case CTK_WIDGET_BUTTON:
    textcolor(VNC_OUT_BUTTONCOLOR + focus);
    if(ypos >= clipy1 && ypos < clipy2) {
      if(focus & CTK_FOCUS_WIDGET) {
	revers(1);
      } else {
	revers(0);
      }
      cputcxy(xpos, ypos, CH_BUTTONLEFT);
      cputsn(w->widget.button.text, w->w);
      cputc(CH_BUTTONRIGHT);
      revers(0);
    }
    break;
  case CTK_WIDGET_HYPERLINK:
    textcolor(VNC_OUT_HYPERLINKCOLOR + focus);
    if(ypos >= clipy1 && ypos < clipy2) {
      /*      if(focus & CTK_FOCUS_WIDGET) {
	textcolor(WIDGETCOLOR_HLINK_FOCUS);
	revers(0);	
      } else {
	textcolor(WIDGETCOLOR_HLINK);
	revers(1);
	}*/
      gotoxy(xpos, ypos);
      cputsn(w->widget.button.text, w->w);
      revers(0);
    }
    break;
  case CTK_WIDGET_TEXTENTRY:
    textcolor(VNC_OUT_TEXTENTRYCOLOR + focus);
    text = w->widget.textentry.text;
    if(focus & CTK_FOCUS_WIDGET) {
      revers(1);
    } else {
      revers(0);
    }
    xscroll = 0;
    if(w->widget.textentry.xpos >= w->w - 1) {
      xscroll = w->widget.textentry.xpos - w->w + 1;
    }
    for(j = 0; j < w->h; ++j) {
      if(ypos >= clipy1 && ypos < clipy2) {
	if(w->widget.textentry.state == CTK_TEXTENTRY_EDIT &&
	   w->widget.textentry.ypos == j) {
	  revers(0);
	  cputcxy(xpos, ypos, '>');
	  for(i = 0; i < w->w; ++i) {
	    c = text[i + xscroll];
	    if(i == w->widget.textentry.xpos - xscroll) {
	      textcolor(VNC_OUT_TEXTENTRYCOLOR + (focus ^ 0x01));
	      revers(1);
	    } else {
	      revers(0);
	    }
	    if(c == 0) {
	      cputc(' ');
	    } else {
	      cputc(c);
	    }
	    revers(0);
	    textcolor(VNC_OUT_TEXTENTRYCOLOR + focus);
	  }
	  cputc('<');
	} else {
	  cvlinexy(xpos, ypos, 1);
	  gotoxy(xpos + 1, ypos);          
	  cputsn(text, w->w);
	  i = wherex();
	  if(i - xpos - 1 < w->w) {
	    cclear(w->w - (i - xpos) + 1);
	  }
	  cvline(1);
	}
      }
      ++ypos;
      text += w->w;
    }
    revers(0);
    break;
  case CTK_WIDGET_ICON:
    if(ypos >= clipy1 && ypos < clipy2) {
      textcolor(VNC_OUT_ICONCOLOR + focus);
      if(focus & 1) {
	revers(1);
      } else {
	revers(0);
      }

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

      gotoxy(x, ypos + 3);
      if(ypos >= clipy1 && ypos < clipy2) {
	cputs(w->widget.icon.title);
      }

      gotoxy(xpos, ypos);
      if(w->widget.icon.bitmap != NULL) {
	iconnum = vnc_out_add_icon((struct ctk_icon *)w);
	gotoxy(xpos, ypos);
	textcolor(iconnum | (focus << 6));
	cputc(0x80);
	cputc(0x81);
	cputc(0x82);
	cputc(0x83);
	++ypos;
	gotoxy(xpos, ypos);
	cputc(0x90);
	cputc(0x91);
	cputc(0x92);
	cputc(0x93);
	++ypos;
	gotoxy(xpos, ypos);
	cputc(0xa0);
	cputc(0xa1);
	cputc(0xa2);
	cputc(0xa3);
	++ypos;
	textcolor(0);
	/*	for(i = 0; i < 3; ++i) {

	  if(ypos >= clipy1 && ypos < clipy2) {
	    cputc(w->widget.icon.textmap[0 + 3 * i]);
	    cputc(w->widget.icon.textmap[1 + 3 * i]);
	    cputc(w->widget.icon.textmap[2 + 3 * i]);
	  }
	  ++ypos;
	  }*/
      }
      x = xpos;
  
      revers(0);
    }
    break;

  default:
    break;
  }
}
/*-----------------------------------------------------------------------------------*/
/** 
 * Draw a widget on the VNC screen. Called by the CTK module.
 *
 * \param w The widget to be drawn.
 * \param focus The focus of the widget.
 * \param clipy1 The lower y coordinate bound.
 * \param clipy2 The upper y coordinate bound.
 */
/*-----------------------------------------------------------------------------------*/
void
ctk_draw_widget(struct ctk_widget *w,
		unsigned char focus,
		unsigned char clipy1,
		unsigned char clipy2)
{
  struct ctk_window *win = w->window;
  struct ctk_icon *icon;
  unsigned char posx, posy, x, len;

  posx = win->x + 1;