window.c

putty

	    tm.tmHeight, tm.tmAveCharWidth, tm.tmMaxCharWidth);
#endif

    {
	CHARSETINFO info;
	DWORD cset = tm.tmCharSet;
	memset(&info, 0xFF, sizeof(info));

	/* !!! Yes the next line is right */
	if (cset == OEM_CHARSET)
	    ucsdata.font_codepage = GetOEMCP();
	else
	    if (TranslateCharsetInfo ((DWORD *) cset, &info, TCI_SRCCHARSET))
		ucsdata.font_codepage = info.ciACP;
	else
	    ucsdata.font_codepage = -1;

	GetCPInfo(ucsdata.font_codepage, &cpinfo);
	ucsdata.dbcs_screenfont = (cpinfo.MaxCharSize > 1);
    }

    f(FONT_UNDERLINE, cfg.font.charset, fw_dontcare, TRUE);

    /*
     * Some fonts, e.g. 9-pt Courier, draw their underlines
     * outside their character cell. We successfully prevent
     * screen corruption by clipping the text output, but then
     * we lose the underline completely. Here we try to work
     * out whether this is such a font, and if it is, we set a
     * flag that causes underlines to be drawn by hand.
     *
     * Having tried other more sophisticated approaches (such
     * as examining the TEXTMETRIC structure or requesting the
     * height of a string), I think we'll do this the brute
     * force way: we create a small bitmap, draw an underlined
     * space on it, and test to see whether any pixels are
     * foreground-coloured. (Since we expect the underline to
     * go all the way across the character cell, we only search
     * down a single column of the bitmap, half way across.)
     */
    {
	HDC und_dc;
	HBITMAP und_bm, und_oldbm;
	int i, gotit;
	COLORREF c;

	und_dc = CreateCompatibleDC(hdc);
	und_bm = CreateCompatibleBitmap(hdc, font_width, font_height);
	und_oldbm = SelectObject(und_dc, und_bm);
	SelectObject(und_dc, fonts[FONT_UNDERLINE]);
	SetTextAlign(und_dc, TA_TOP | TA_LEFT | TA_NOUPDATECP);
	SetTextColor(und_dc, RGB(255, 255, 255));
	SetBkColor(und_dc, RGB(0, 0, 0));
	SetBkMode(und_dc, OPAQUE);
	ExtTextOut(und_dc, 0, 0, ETO_OPAQUE, NULL, " ", 1, NULL);
	gotit = FALSE;
	for (i = 0; i < font_height; i++) {
	    c = GetPixel(und_dc, font_width / 2, i);
	    if (c != RGB(0, 0, 0))
		gotit = TRUE;
	}
	SelectObject(und_dc, und_oldbm);
	DeleteObject(und_bm);
	DeleteDC(und_dc);
	if (!gotit) {
	    und_mode = UND_LINE;
	    DeleteObject(fonts[FONT_UNDERLINE]);
	    fonts[FONT_UNDERLINE] = 0;
	}
    }

    if (bold_mode == BOLD_FONT) {
	f(FONT_BOLD, cfg.font.charset, fw_bold, FALSE);
    }
#undef f

    descent = tm.tmAscent + 1;
    if (descent >= font_height)
	descent = font_height - 1;

    for (i = 0; i < 3; i++) {
	if (fonts[i]) {
	    if (SelectObject(hdc, fonts[i]) && GetTextMetrics(hdc, &tm))
		fontsize[i] = tm.tmAveCharWidth + 256 * tm.tmHeight;
	    else
		fontsize[i] = -i;
	} else
	    fontsize[i] = -i;
    }

    ReleaseDC(hwnd, hdc);

    if (fontsize[FONT_UNDERLINE] != fontsize[FONT_NORMAL]) {
	und_mode = UND_LINE;
	DeleteObject(fonts[FONT_UNDERLINE]);
	fonts[FONT_UNDERLINE] = 0;
    }

    if (bold_mode == BOLD_FONT &&
	fontsize[FONT_BOLD] != fontsize[FONT_NORMAL]) {
	bold_mode = BOLD_SHADOW;
	DeleteObject(fonts[FONT_BOLD]);
	fonts[FONT_BOLD] = 0;
    }
    fontflag[0] = fontflag[1] = fontflag[2] = 1;

    init_ucs(&cfg, &ucsdata);
}

static void another_font(int fontno)
{
    int basefont;
    int fw_dontcare, fw_bold;
    int c, u, w, x;
    char *s;

    if (fontno < 0 || fontno >= FONT_MAXNO || fontflag[fontno])
	return;

    basefont = (fontno & ~(FONT_BOLDUND));
    if (basefont != fontno && !fontflag[basefont])
	another_font(basefont);

    if (cfg.font.isbold) {
	fw_dontcare = FW_BOLD;
	fw_bold = FW_HEAVY;
    } else {
	fw_dontcare = FW_DONTCARE;
	fw_bold = FW_BOLD;
    }

    c = cfg.font.charset;
    w = fw_dontcare;
    u = FALSE;
    s = cfg.font.name;
    x = font_width;

    if (fontno & FONT_WIDE)
	x *= 2;
    if (fontno & FONT_NARROW)
	x = (x+1)/2;
    if (fontno & FONT_OEM)
	c = OEM_CHARSET;
    if (fontno & FONT_BOLD)
	w = fw_bold;
    if (fontno & FONT_UNDERLINE)
	u = TRUE;

    fonts[fontno] =
	CreateFont(font_height * (1 + !!(fontno & FONT_HIGH)), x, 0, 0, w,
		   FALSE, u, FALSE, c, OUT_DEFAULT_PRECIS,
		   CLIP_DEFAULT_PRECIS, FONT_QUALITY(cfg.font_quality),
		   FIXED_PITCH | FF_DONTCARE, s);

    fontflag[fontno] = 1;
}

static void deinit_fonts(void)
{
    int i;
    for (i = 0; i < FONT_MAXNO; i++) {
	if (fonts[i])
	    DeleteObject(fonts[i]);
	fonts[i] = 0;
	fontflag[i] = 0;
    }
}

void request_resize(void *frontend, int w, int h)
{
    int width, height;

    /* If the window is maximized supress resizing attempts */
    if (IsZoomed(hwnd)) {
	if (cfg.resize_action == RESIZE_TERM)
	    return;
    }

    if (cfg.resize_action == RESIZE_DISABLED) return;
    if (h == term->rows && w == term->cols) return;

    /* Sanity checks ... */
    {
	static int first_time = 1;
	static RECT ss;

	switch (first_time) {
	  case 1:
	    /* Get the size of the screen */
	    if (get_fullscreen_rect(&ss))
		/* first_time = 0 */ ;
	    else {
		first_time = 2;
		break;
	    }
	  case 0:
	    /* Make sure the values are sane */
	    width = (ss.right - ss.left - extra_width) / 4;
	    height = (ss.bottom - ss.top - extra_height) / 6;

	    if (w > width || h > height)
		return;
	    if (w < 15)
		w = 15;
	    if (h < 1)
		h = 1;
	}
    }

    term_size(term, h, w, cfg.savelines);

    if (cfg.resize_action != RESIZE_FONT && !IsZoomed(hwnd)) {
	width = extra_width + font_width * w;
	height = extra_height + font_height * h;

	SetWindowPos(hwnd, NULL, 0, 0, width, height,
	    SWP_NOACTIVATE | SWP_NOCOPYBITS |
	    SWP_NOMOVE | SWP_NOZORDER);
    } else
	reset_window(0);

    InvalidateRect(hwnd, NULL, TRUE);
}

static void reset_window(int reinit) {
    /*
     * This function decides how to resize or redraw when the 
     * user changes something. 
     *
     * This function doesn't like to change the terminal size but if the
     * font size is locked that may be it's only soluion.
     */
    int win_width, win_height;
    RECT cr, wr;

#ifdef RDB_DEBUG_PATCH
    debug((27, "reset_window()"));
#endif

    /* Current window sizes ... */
    GetWindowRect(hwnd, &wr);
    GetClientRect(hwnd, &cr);

    win_width  = cr.right - cr.left;
    win_height = cr.bottom - cr.top;

    if (cfg.resize_action == RESIZE_DISABLED) reinit = 2;

    /* Are we being forced to reload the fonts ? */
    if (reinit>1) {
#ifdef RDB_DEBUG_PATCH
	debug((27, "reset_window() -- Forced deinit"));
#endif
	deinit_fonts();
	init_fonts(0,0);
    }

    /* Oh, looks like we're minimised */
    if (win_width == 0 || win_height == 0)
	return;

    /* Is the window out of position ? */
    if ( !reinit && 
	    (offset_width != (win_width-font_width*term->cols)/2 ||
	     offset_height != (win_height-font_height*term->rows)/2) ){
	offset_width = (win_width-font_width*term->cols)/2;
	offset_height = (win_height-font_height*term->rows)/2;
	InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
	debug((27, "reset_window() -> Reposition terminal"));
#endif
    }

    if (IsZoomed(hwnd)) {
	/* We're fullscreen, this means we must not change the size of
	 * the window so it's the font size or the terminal itself.
	 */

	extra_width = wr.right - wr.left - cr.right + cr.left;
	extra_height = wr.bottom - wr.top - cr.bottom + cr.top;

	if (cfg.resize_action != RESIZE_TERM) {
	    if (  font_width != win_width/term->cols || 
		  font_height != win_height/term->rows) {
		deinit_fonts();
		init_fonts(win_width/term->cols, win_height/term->rows);
		offset_width = (win_width-font_width*term->cols)/2;
		offset_height = (win_height-font_height*term->rows)/2;
		InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
		debug((25, "reset_window() -> Z font resize to (%d, %d)",
			font_width, font_height));
#endif
	    }
	} else {
	    if (  font_width * term->cols != win_width || 
		  font_height * term->rows != win_height) {
		/* Our only choice at this point is to change the 
		 * size of the terminal; Oh well.
		 */
		term_size(term, win_height/font_height, win_width/font_width,
			  cfg.savelines);
		offset_width = (win_width-font_width*term->cols)/2;
		offset_height = (win_height-font_height*term->rows)/2;
		InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
		debug((27, "reset_window() -> Zoomed term_size"));
#endif
	    }
	}
	return;
    }

    /* Hmm, a force re-init means we should ignore the current window
     * so we resize to the default font size.
     */
    if (reinit>0) {
#ifdef RDB_DEBUG_PATCH
	debug((27, "reset_window() -> Forced re-init"));
#endif

	offset_width = offset_height = cfg.window_border;
	extra_width = wr.right - wr.left - cr.right + cr.left + offset_width*2;
	extra_height = wr.bottom - wr.top - cr.bottom + cr.top +offset_height*2;

	if (win_width != font_width*term->cols + offset_width*2 ||
	    win_height != font_height*term->rows + offset_height*2) {

	    /* If this is too large windows will resize it to the maximum
	     * allowed window size, we will then be back in here and resize
	     * the font or terminal to fit.
	     */
	    SetWindowPos(hwnd, NULL, 0, 0, 
		         font_width*term->cols + extra_width, 
			 font_height*term->rows + extra_height,
			 SWP_NOMOVE | SWP_NOZORDER);
	}

	InvalidateRect(hwnd, NULL, TRUE);
	return;
    }

    /* Okay the user doesn't want us to change the font so we try the 
     * window. But that may be too big for the screen which forces us
     * to change the terminal.
     */
    if ((cfg.resize_action == RESIZE_TERM && reinit<=0) ||
        (cfg.resize_action == RESIZE_EITHER && reinit<0) ||
	    reinit>0) {
	offset_width = offset_height = cfg.window_border;
	extra_width = wr.right - wr.left - cr.right + cr.left + offset_width*2;
	extra_height = wr.bottom - wr.top - cr.bottom + cr.top +offset_height*2;

	if (win_width != font_width*term->cols + offset_width*2 ||
	    win_height != font_height*term->rows + offset_height*2) {

	    static RECT ss;
	    int width, height;
		
		get_fullscreen_rect(&ss);

	    width = (ss.right - ss.left - extra_width) / font_width;
	    height = (ss.bottom - ss.top - extra_height) / font_height;

	    /* Grrr too big */
	    if ( term->rows > height || term->cols > width ) {
		if (cfg.resize_action == RESIZE_EITHER) {
		    /* Make the font the biggest we can */
		    if (term->cols > width)
			font_width = (ss.right - ss.left - extra_width)
			    / term->cols;
		    if (term->rows > height)
			font_height = (ss.bottom - ss.top - extra_height)
			    / term->rows;

		    deinit_fonts();
		    init_fonts(font_width, font_height);

		    width = (ss.right - ss.left - extra_width) / font_width;
		    height = (ss.bottom - ss.top - extra_height) / font_height;
		} else {
		    if ( height > term->rows ) height = term->rows;
		    if ( width > term->cols )  width = term->cols;
		    term_size(term, height, width, cfg.savelines);
#ifdef RDB_DEBUG_PATCH
		    debug((27, "reset_window() -> term resize to (%d,%d)",
			       height, width));
#endif
		}
	    }
	    
	    SetWindowPos(hwnd, NULL, 0, 0, 
		         font_width*term->cols + extra_width, 
			 font_height*term->rows + extra_height,
			 SWP_NOMOVE | SWP_NOZORDER);

	    InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
	    debug((27, "reset_window() -> window resize to (%d,%d)",
			font_width*term->cols + extra_width,
			font_height*term->rows + extra_height));
#endif
	}
	return;
    }

    /* We're allowed to or must change the font but do we want to ?  */

    if (font_width != (win_width-cfg.window_border*2)/term->cols || 
	font_height != (win_height-cfg.window_border*2)/term->rows) {

	deinit_fonts();
	init_fonts((win_width-cfg.window_border*2)/term->cols, 
		   (win_height-cfg.window_border*2)/term->rows);
	offset_width = (win_width-font_width*term->cols)/2;
	offset_height = (win_height-font_height*term->rows)/2;

	extra_width = wr.right - wr.left - cr.right + cr.left +offset_width*2;
	extra_height = wr.bottom - wr.top - cr.bottom + cr.top+offset_height*2;

	InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
	debug((25, "reset_window() -> font resize to (%d,%d)", 
		   font_width, font_height));
#endif
    }
}

static void set_input_locale(HKL kl)
{
    char lbuf[20];

    GetLocaleInfo(LOWORD(kl), LOCALE_IDEFAULTANSICODEPAGE,
		  lbuf, sizeof(lbuf));

    kbd_codepage = atoi(lbuf);
}

static void click(Mouse_Button b, int x, int y, int shift, int ctrl, int alt)
{
    int thistime = GetMessageTime();

    if (send_raw_mouse && !(cfg.mouse_override && shift)) {
	lastbtn = MBT_NOTHING;
	term_mouse(term, b, translate_button(b), MA_CLICK,
		   x, y, shift, ctrl, alt);
	return;
    }

    if (lastbtn == b && thistime - lasttime < dbltime) {
	lastact = (lastact == MA_CLICK ? MA_2CLK :
		   lastact == MA_2CLK ? MA_3CLK :
		   lastact == MA_3CLK ? MA_CLICK : MA_NOTHING);
    } else {
	lastbtn = b;
	lastact = MA_CLICK;
    }
    if (lastact != MA_NOTHING)
	term_mouse(term, b, translate_button(b), lastact,
		   x, y, shift, ctrl, alt);
    lasttime = thistime;
}

/*
 * Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT)
 * into a cooked one (SELECT, EXTEND, PASTE).
 */
static Mouse_Button translate_button(Mouse_Button button)
{
    if (button == MBT_LEFT)
	return MBT_SELECT;
    if (button == MBT_MIDDLE)