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osd-contiki/core/ctk/ctk-vncserver.c

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Import of the contiki-2.x development code from the SICS internal CVS server
2006-06-18 00:41:10 +02:00
/**
* \file
* The ctk-draw implementation for the CTK VNC server.
* \author Adam Dunkels <adam@dunkels.com>
*
*/
/**
* \defgroup CTKVNCServer The CTK VNC server
* @{
*/
/*
* 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 1.1 2006/06/17 22:41:16 adamdunkels Exp $
*
*/
#include <string.h> /* For strlen() */
#include "ctk/ctk.h"
#include "ctk/ctk-draw.h"
#include "contiki-net.h"
#include "ctk/vnc-server.h"
#include "ctk/vnc-out.h"
#include "ctk/ctk-vncfont.h"
#include "ctk/ctk-vncserver.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 "lib/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
PROCESS(ctk_vncserver_process, "CTK VNC server");
static struct vnc_server_state conns[CTK_VNCSERVER_CONF_NUMCONNS];
#define PRINTF(x)
#define revers(x)
unsigned char ctk_draw_windowborder_height = 1;
unsigned char ctk_draw_windowborder_width = 1;
unsigned char ctk_draw_windowtitle_height = 1;
/*-----------------------------------------------------------------------------------*/
/**
* 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 void
cputsn(char *str, unsigned char len)
{
char c;
while(len > 0) {
--len;
c = *str;
if(c == 0) {
break;
}
cputc(c);
++str;
}
}
/*-----------------------------------------------------------------------------------*/
/**
* 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;
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 {
if(focus & CTK_FOCUS_WIDGET && j == w->widget.textentry.ypos) {
revers(1);
} else {
revers(0);
}
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->widget.textentry.len + 1;
}
revers(0);
break;
#if CTK_CONF_ICONS
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);
}
#if CTK_CONF_ICON_BITMAPS
if(w->widget.icon.bitmap != NULL) {
iconnum = vnc_out_add_icon((struct ctk_icon *)w);
textcolor(iconnum | (focus << 6));
gotoxy(xpos, ypos);
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;
}*/
}
#endif /* CTK_CONF_ICON_BITMAPS */
revers(0);
}
break;
#endif /* CTK_CONF_ICONS */
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;
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.
* \param draw_borders The flag for border drawing.
*/
/*-----------------------------------------------------------------------------------*/
void
ctk_draw_window(struct ctk_window *window, unsigned char focus,
unsigned char clipy1, unsigned char clipy2,
unsigned char draw_borders)
{
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;
x1 = x + 1;
y1 = y + 1;
x2 = x1 + window->w;
y2 = y1 + window->h;
if(draw_borders) {
/* Draw window frame. */
textcolor(VNC_OUT_WINDOWCOLOR + focus);
/* if(focus & CTK_FOCUS_WINDOW) {
textcolor(WINDOWCOLOR_FOCUS);
} else {
textcolor(WINDOWCOLOR);
}*/
if(y >= clipy1) {
cputcxy(x, y, CH_ULCORNER);
for(i = wherex() + window->titlelen + CTK_CONF_WINDOWMOVE * 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, 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;
}
/*-----------------------------------------------------------------------------------*/
unsigned char
ctk_mouse_xtoc(unsigned short x)
{
return x / CTK_VNCFONT_WIDTH;
}
/*-----------------------------------------------------------------------------------*/
unsigned char
ctk_mouse_ytoc(unsigned short y)
{
return y / CTK_VNCFONT_HEIGHT;
}
/*-----------------------------------------------------------------------------------*/
/** \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.
*/
/*-----------------------------------------------------------------------------------*/
void
ctk_vncserver_appcall(void *state)
{
static struct vnc_server_state *vs;
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;
}
tcp_markconn(uip_conn, (void *)vs);
}
} else if(uip_closed() || uip_aborted()) {
if(vs != NULL) {
dealloc_state(vs);
}
return;
}
vnc_server_appcall(vs);
}
/*-----------------------------------------------------------------------------------*/
PROCESS_THREAD(ctk_vncserver_process, ev, data)
{
int i;
PROCESS_BEGIN();
tcp_listen(HTONS(5900));
for(i = 0; i < CTK_VNCSERVER_CONF_NUMCONNS; ++i) {
conns[i].state = VNC_DEALLOCATED;
}
while(1) {
PROCESS_WAIT_EVENT();
if(ev == tcpip_event) {
ctk_vncserver_appcall(data);
}
}
PROCESS_END();
}
/*-----------------------------------------------------------------------------------*/
/** @} */
Reference in a new issue Copy permalink