macterm.c

远程登陆工具软件源码 用于远程登陆unix

		    break;
		  case 2:
		    s->term->attr_mask |= ~ATTR_COLOURS;
		    break;
		  default:
		    s->term->attr_mask = ~0;
		    return; /* No point checking more screens. */
		}
	    }
	}
    } else
	s->term->attr_mask = ~(ATTR_COLOURS |
			        (s->cfg.bold_colour ? ATTR_BOLD : 0));
}

Context get_ctx(void *frontend)
{
    Session *s = frontend;

    pre_paint(s);
    return s;
}

void free_ctx(Context ctx)
{

}

/*
 * Presumably this does something in Windows
 */
void post_paint(Session *s)
{

}

/*
 * Set the scroll bar position
 *
 * total is the line number of the bottom of the working screen
 * start is the line number of the top of the display
 * page is the length of the displayed page
 */
void set_sbar(void *frontend, int total, int start, int page)
{
    Session *s = frontend;

    /* We don't redraw until we've set everything up, to avoid glitches */
    SetControlMinimum(s->scrollbar, 0);
    SetControlMaximum(s->scrollbar, total - page);
    SetControlValue(s->scrollbar, start);
#if !TARGET_CPU_68K
    if (mac_gestalts.cntlattr & gestaltControlMgrPresent)
	SetControlViewSize(s->scrollbar, page);
#endif
}

void sys_cursor(void *frontend, int x, int y)
{
    /*
     * I think his is meaningless under Mac OS.
     */
}

/*
 * This is still called when mode==BELL_VISUAL, even though the
 * visual bell is handled entirely within terminal.c, because we
 * may want to perform additional actions on any kind of bell (for
 * example, taskbar flashing in Windows).
 */
void beep(void *frontend, int mode)
{
    if (mode != BELL_VISUAL)
	SysBeep(30);
    /*
     * XXX We should indicate the relevant window and/or use the
     * Notification Manager
     */
}

int char_width(Context ctx, int uc)
{
    /*
     * Until we support exciting character-set stuff, assume all chars are
     * single-width.
     */
    return 1;
}

/*
 * Set icon string -- a no-op here (Windowshade?)
 */
void set_icon(void *frontend, char *icon) {
    Session *s = frontend;

}

/*
 * Set the window title
 */
void set_title(void *frontend, char *title)
{
    Session *s = frontend;
    Str255 mactitle;

    c2pstrcpy(mactitle, title);
    SetWTitle(s->window, mactitle);
}

/*
 * set or clear the "raw mouse message" mode
 */
void set_raw_mouse_mode(void *frontend, int activate)
{
    Session *s = frontend;

    s->raw_mouse = activate;
    /* FIXME: Should call mac_updatetermcursor as appropriate. */
}

/*
 * Resize the window at the emulator's request
 */
void request_resize(void *frontend, int w, int h)
{
    Session *s = frontend;
    RgnHandle grayrgn;
    Rect graybox;
    int wlim, hlim;

    /* Arbitrarily clip to the size of the desktop. */
    grayrgn = GetGrayRgn();
#if TARGET_API_MAC_CARBON
    GetRegionBounds(grayrgn, &graybox);
#else
    graybox = (*grayrgn)->rgnBBox;
#endif
    wlim = (graybox.right - graybox.left) / s->font_width;
    hlim = (graybox.bottom - graybox.top) / s->font_height;
    if (w > wlim) w = wlim;
    if (h > hlim) h = hlim;
    term_size(s->term, h, w, s->cfg.savelines);
    mac_initfont(s);
}

/*
 * Iconify (actually collapse) the window at the emulator's request.
 */
void set_iconic(void *frontend, int iconic)
{
    Session *s = frontend;
    UInt32 features;

    if (mac_gestalts.apprvers >= 0x0100 &&
	GetWindowFeatures(s->window, &features) == noErr &&
	(features & kWindowCanCollapse))
	CollapseWindow(s->window, iconic);
}

/*
 * Move the window in response to a server-side request.
 */
void move_window(void *frontend, int x, int y)
{
    Session *s = frontend;

    MoveWindow(s->window, x, y, FALSE);
}

/*
 * Move the window to the top or bottom of the z-order in response
 * to a server-side request.
 */
void set_zorder(void *frontend, int top)
{
    Session *s = frontend;

    /* 
     * We also change the input focus to point to the topmost window,
     * since that's probably what the Human Interface Guidelines would
     * like us to do.
     */
    if (top)
	SelectWindow(s->window);
    else
	SendBehind(s->window, NULL);
}

/*
 * Refresh the window in response to a server-side request.
 */
void refresh_window(void *frontend)
{
    Session *s = frontend;

    term_invalidate(s->term);
}

/*
 * Maximise or restore the window in response to a server-side
 * request.
 */
void set_zoomed(void *frontend, int zoomed)
{
    Session *s = frontend;

    ZoomWindow(s->window, zoomed ? inZoomOut : inZoomIn, FALSE);
}

/*
 * Report whether the window is iconic, for terminal reports.
 */
int is_iconic(void *frontend)
{
    Session *s = frontend;
    UInt32 features;

    if (mac_gestalts.apprvers >= 0x0100 &&
	GetWindowFeatures(s->window, &features) == noErr &&
	(features & kWindowCanCollapse))
	return IsWindowCollapsed(s->window);
    return FALSE;
}

/*
 * Report the window's position, for terminal reports.
 */
void get_window_pos(void *frontend, int *x, int *y)
{
    Session *s = frontend;
    Rect rect;

#if TARGET_API_MAC_CARBON
    GetPortBounds(GetWindowPort(s->window), &rect);
#else
    rect = s->window->portRect;
#endif
    *x = rect.left;
    *y = rect.top;
}

/*
 * Report the window's pixel size, for terminal reports.
 */
void get_window_pixels(void *frontend, int *x, int *y)
{
    Session *s = frontend;
    Rect rect;

#if TARGET_API_MAC_CARBON
    GetPortBounds(GetWindowPort(s->window), &rect);
#else
    rect = s->window->portRect;
#endif
    *x = rect.right - rect.left;
    *y = rect.bottom - rect.top;
}

/*
 * Return the window or icon title.
 */
char *get_window_title(void *frontend, int icon)
{
    Session *s = frontend;
    Str255 ptitle;
    static char title[256];

    GetWTitle(s->window, ptitle);
    p2cstrcpy(title, ptitle);
    return title;
}

/*
 * real_palette_set(): This does the actual palette-changing work on behalf
 * of palette_set().  Does _not_ call ActivatePalette() in case the caller
 * is doing a batch of updates.
 */
static void real_palette_set(Session *s, int n, int r, int g, int b)
{
    RGBColor col;

    if (!HAVE_COLOR_QD())
	return;
    col.red   = r * 0x0101;
    col.green = g * 0x0101;
    col.blue  = b * 0x0101;
    SetEntryColor(s->palette, n, &col);
}

/*
 * Set the logical palette.  Called by the terminal emulator.
 */
void palette_set(void *frontend, int n, int r, int g, int b)
{
    Session *s = frontend;
    static const int first[21] = {
	0, 2, 4, 6, 8, 10, 12, 14,
	1, 3, 5, 7, 9, 11, 13, 15,
	16, 17, 18, 20, 21
    };
    
    if (!HAVE_COLOR_QD())
	return;
    real_palette_set(s, first[n], r, g, b);
    if (first[n] == 18)
	real_palette_set(s, first[n]+1, r, g, b);
    if (first[n] == DEFAULT_BG)
	mac_adjustwinbg(s);
    ActivatePalette(s->window);
}

/*
 * Reset to the default palette
 */
void palette_reset(void *frontend)
{
    Session *s = frontend;
    /* This maps colour indices in cfg to those used in our palette. */
    static const int ww[] = {
	6, 7, 8, 9, 10, 11, 12, 13,
        14, 15, 16, 17, 18, 19, 20, 21,
	0, 1, 2, 3, 4, 5
    };
    int i;

    if (!HAVE_COLOR_QD())
	return;

    assert(lenof(ww) == NCOLOURS);

    for (i = 0; i < NCOLOURS; i++) {
	real_palette_set(s, i,
			 s->cfg.colours[ww[i]][0],
			 s->cfg.colours[ww[i]][1],
			 s->cfg.colours[ww[i]][2]);
    }
    mac_adjustwinbg(s);
    ActivatePalette(s->window);
    /* Palette Manager will generate update events as required. */
}

/*
 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
 * for backward.)
 */
void do_scroll(Context ctx, int topline, int botline, int lines)
{
    Session *s = ctx;
    Rect r;
    RgnHandle scrollrgn = NewRgn();
    RgnHandle movedupdate = NewRgn();
    RgnHandle update = NewRgn();
    Point g2l = { 0, 0 };

    SetPort((GrafPtr)GetWindowPort(s->window));

    /*
     * Work out the part of the update region that will scrolled by
     * this operation.
     */
    if (lines > 0)
	SetRectRgn(scrollrgn, 0, (topline + lines) * s->font_height,
		   s->term->cols * s->font_width,
		   (botline + 1) * s->font_height);
    else
	SetRectRgn(scrollrgn, 0, topline * s->font_height,
		   s->term->cols * s->font_width,
		   (botline - lines + 1) * s->font_height);
#if TARGET_API_MAC_CARBON
    GetWindowRegion(s->window, kWindowUpdateRgn, movedupdate);
#else
    GetWindowUpdateRgn(s->window, movedupdate);
#endif
    GlobalToLocal(&g2l);
    OffsetRgn(movedupdate, g2l.h, g2l.v); /* Convert to local co-ords. */
    SectRgn(scrollrgn, movedupdate, movedupdate); /* Clip scrolled section. */
#if TARGET_API_MAC_CARBON
    ValidWindowRgn(s->window, movedupdate);
#else
    ValidRgn(movedupdate);
#endif
    OffsetRgn(movedupdate, 0, -lines * s->font_height); /* Scroll it. */

    PenNormal();
    if (HAVE_COLOR_QD())
	PmBackColor(DEFAULT_BG);
    else
	BackColor(blackColor); /* XXX make configurable */
    SetRect(&r, 0, topline * s->font_height,
	    s->term->cols * s->font_width, (botline + 1) * s->font_height);
    ScrollRect(&r, 0, - lines * s->font_height, update);

#if TARGET_API_MAC_CARBON
    InvalWindowRgn(s->window, update);
    InvalWindowRgn(s->window, movedupdate);
#else
    InvalRgn(update);
    InvalRgn(movedupdate);
#endif

    DisposeRgn(scrollrgn);
    DisposeRgn(movedupdate);
    DisposeRgn(update);
}

/* Dummy routine, only required in plink. */
void ldisc_update(void *frontend, int echo, int edit)
{
}

/*
 * Mac PuTTY doesn't support printing yet.
 */
printer_job *printer_start_job(char *printer)
{

    return NULL;
}

void printer_job_data(printer_job *pj, void *data, int len)
{
}

void printer_finish_job(printer_job *pj)
{
}

void frontend_keypress(void *handle)
{
    /*
     * Keypress termination in non-Close-On-Exit mode is not
     * currently supported in PuTTY proper, because the window
     * always has a perfectly good Close button anyway. So we do
     * nothing here.
     */
    return;
}

/*
 * Ask whether to wipe a session log file before writing to it.
 * Returns 2 for wipe, 1 for append, 0 for cancel (don't log).
 */
int askappend(void *frontend, Filename filename)
{

    /* FIXME: not implemented yet. */
    return 2;
}

int from_backend(void *frontend, int is_stderr, const char *data, int len)
{
    Session *s = frontend;

    return term_data(s->term, is_stderr, data, len);
}

/*
 * Emacs magic:
 * Local Variables:
 * c-file-style: "simon"
 * End:
 */