Esempio n. 1
0
func cutLines(c *xgb.Conn, w uint32, font xproto.Font, text string) []string {
	wds := strings.Split(text, " ")
	var words []_word = make([]_word, len(wds))
	for i, word := range wds {
		words[i].wd = word + " "
		words[i].length = 0
		ch2dstr, ln := prepString(words[i].wd)
		words[i].cookie = xproto.QueryTextExtents(c, xproto.Fontable(font), ch2dstr, ln)
	}

	var lines []string = make([]string, 0, 10)
	var line string = ""
	var ln uint32 = 0
	for i := 0; i < len(words); i++ {
		rep, _ := words[i].cookie.Reply()
		words[i].length = uint32(rep.OverallWidth)
		ln += words[i].length
		if ln >= w {
			lines = append(lines, line)
			line = ""
			ln = words[i].length
		}
		line += words[i].wd
	}
	if ln != 0 {
		lines = append(lines, line)
	}

	return lines
}
Esempio n. 2
0
func loadGC(name string, c *xgb.Conn, scr *xproto.ScreenInfo) error {
	var gc gcontext

	/* Foreground GC */
	id, err := xproto.NewGcontextId(c)
	if err != nil {
		return err
	}
	var mask uint32 = xproto.GcForeground | xproto.GcBackground |
		xproto.GcLineWidth | xproto.GcFont
	values := defaultGCValues(c)
	{
		cl, e := config.String(name + ".gc.fg")
		if e == nil {
			values[0], e = openColor(c, scr, readColor(cl))
			if e != nil {
				return e
			}
		}
		cl, e = config.String(name + ".gc.bg")
		if e == nil {
			values[1], e = openColor(c, scr, readColor(cl))
			if e != nil {
				return e
			}
		}
		wd, e := config.Int(name + ".gc.width")
		if e == nil {
			values[2] = uint32(wd)
		}
		cl, e = config.String(name + ".gc.font")
		if e == nil {
			fn, e := openFont(c, cl)
			if e != nil {
				return e
			}
			values[3] = uint32(fn)
		}
	}
	err = xproto.CreateGCChecked(c, id, xproto.Drawable(scr.Root), mask, values).Check()
	if err != nil {
		return err
	}
	gc.fg = id
	gc.font = xproto.Font(values[3])
	gc.border = values[2]

	/* Query the font height */
	{
		rep, e := xproto.QueryFont(c, xproto.Fontable(gc.font)).Reply()
		if e != nil {
			return e
		}
		gc.fontHeight = uint32(rep.FontAscent) + uint32(rep.FontDescent)
		gc.fontUp = uint32(rep.FontAscent)
	}

	/* Background GC */
	id, err = xproto.NewGcontextId(c)
	if err != nil {
		return err
	}
	mask = xproto.GcForeground | xproto.GcBackground | xproto.GcLineWidth
	values[0], values[1] = values[1], values[0]
	err = xproto.CreateGCChecked(c, id, xproto.Drawable(scr.Root), mask, values).Check()
	if err != nil {
		return err
	}
	gc.bg = id

	/* Border GC */
	id, err = xproto.NewGcontextId(c)
	if err != nil {
		return err
	}
	{
		cl, e := config.String(name + ".gc.bc")
		if e == nil {
			values[0], e = openColor(c, scr, readColor(cl))
			if e != nil {
				return e
			}
		} else {
			values[0] = defaultgc.bc
		}
	}
	values[1] = values[0]
	err = xproto.CreateGCChecked(c, id, xproto.Drawable(scr.Root), mask, values).Check()
	if err != nil {
		return err
	}
	gc.bc = id

	/* Width */
	{
		wd, e := config.Int(name + ".width")
		if e == nil {
			gc.width = uint32(wd)
		} else {
			gc.width = defaultgc.width
		}
	}

	ctxs[name] = &gc
	return nil
}