scx/c/xlib/util.c

#include "xlib.h"

static s48_value P_Get_Default (d, program, option) s48_value d, program, option; {
    register char *ret;

    Check_Type (d, T_Display);
    if (ret = XGetDefault (DISPLAY(d)->dpy, Get_Strsym (program),
	    Get_Strsym (option)))
	return Make_String (ret, strlen (ret));
    return S48_FALSE;
}

static s48_value P_Resource_Manager_String (d) s48_value d; {
    register char *ret;

    Check_Type (d, T_Display);
    ret = XResourceManagerString (DISPLAY(d)->dpy);
    return ret ? Make_String (ret, strlen (ret)) : S48_FALSE;
}

static s48_value P_Parse_Geometry (string) s48_value string; {
    s48_value ret, t;
    register mask;
    int x, y;
    unsigned w, h;

    mask = XParseGeometry (Get_Strsym (string), &x, &y, &w, &h);
    t = ret = P_Make_List (s48_enter_integer (6), S48_FALSE);
    if (mask & XNegative) S48_CAR (t) = S48_TRUE; t = S48_CDR (t);
    if (mask & YNegative) S48_CAR (t) = S48_TRUE; t = S48_CDR (t);
    if (mask & XValue) S48_CAR (t) = s48_enter_integer (x); t = S48_CDR (t);
    if (mask & YValue) S48_CAR (t) = s48_enter_integer (y); t = S48_CDR (t);
    if (mask & WidthValue) S48_CAR (t) = s48_enter_integer (w); t = S48_CDR (t);
    if (mask & HeightValue) S48_CAR (t) = s48_enter_integer (h);
    return ret;
}

static s48_value P_Parse_Color (d, cmap, spec) s48_value d, cmap, spec; {
    XColor ret;

    Check_Type (d, T_Display);
    if (XParseColor (DISPLAY(d)->dpy, Get_Colormap (cmap), Get_Strsym (spec),
	    &ret))
	return Make_Color (ret.red, ret.green, ret.blue);
    return S48_FALSE;
}

elk_init_xlib_util () {
    Define_Primitive (P_Get_Default,       "get-default",         3, 3, EVAL);
    Define_Primitive (P_Resource_Manager_String,
			"resource-manager-string",                1, 1, EVAL);
    Define_Primitive (P_Parse_Geometry,    "parse-geometry",      1, 1, EVAL);
    Define_Primitive (P_Parse_Color,       "parse-color",         3, 3, EVAL);
}