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/* cursor.c
*
* $Id$
*
* Copyright 1990, 1991, 1992, 1993, 1994, 1995, Oliver Laumann, Berlin
* Copyright 2002, 2003 Sam Hocevar <sam@hocevar.net>, Paris
*
* This software was derived from Elk 1.2, which was Copyright 1987, 1988,
* 1989, Nixdorf Computer AG and TELES GmbH, Berlin (Elk 1.2 has been written
* by Oliver Laumann for TELES Telematic Services, Berlin, in a joint project
* between TELES and Nixdorf Microprocessor Engineering, Berlin).
*
* Oliver Laumann, TELES GmbH, Nixdorf Computer AG and Sam Hocevar, as co-
* owners or individual owners of copyright in this software, grant to any
* person or company a worldwide, royalty free, license to
*
* i) copy this software,
* ii) prepare derivative works based on this software,
* iii) distribute copies of this software or derivative works,
* iv) perform this software, or
* v) display this software,
*
* provided that this notice is not removed and that neither Oliver Laumann
* nor Teles nor Nixdorf are deemed to have made any representations as to
* the suitability of this software for any purpose nor are held responsible
* for any defects of this software.
*
* THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
*/
#include "xlib.h"
Generic_Predicate (Cursor)
Generic_Equal_Dpy (Cursor, CURSOR, cursor)
Generic_Print (Cursor, "#[cursor %lu]", CURSOR(x)->cursor)
Generic_Get_Display (Cursor, CURSOR)
static Object Internal_Make_Cursor (int finalize, Display *dpy, Cursor cursor) {
Object c;
if (cursor == None)
return Sym_None;
c = Find_Object (T_Cursor, (GENERIC)dpy, Match_X_Obj, cursor);
if (Nullp (c)) {
c = Alloc_Object (sizeof (struct S_Cursor), T_Cursor, 0);
CURSOR(c)->tag = Null;
CURSOR(c)->cursor = cursor;
CURSOR(c)->dpy = dpy;
CURSOR(c)->free = 0;
Register_Object (c, (GENERIC)dpy,
finalize ? P_Free_Cursor : (PFO)0, 0);
}
return c;
}
/* Backwards compatibility: */
Object Make_Cursor (Display *dpy, Cursor cursor) {
return Internal_Make_Cursor (1, dpy, cursor);
}
Object Make_Cursor_Foreign (Display *dpy, Cursor cursor) {
return Internal_Make_Cursor (0, dpy, cursor);
}
Cursor Get_Cursor (Object c) {
if (EQ(c, Sym_None))
return None;
Check_Type (c, T_Cursor);
return CURSOR(c)->cursor;
}
Object P_Free_Cursor (Object c) {
Check_Type (c, T_Cursor);
if (!CURSOR(c)->free)
XFreeCursor (CURSOR(c)->dpy, CURSOR(c)->cursor);
Deregister_Object (c);
CURSOR(c)->free = 1;
return Void;
}
static Object P_Create_Cursor (Object srcp, Object maskp, Object x, Object y,
Object f, Object b) {
Pixmap sp = Get_Pixmap (srcp), mp;
Display *d = PIXMAP(srcp)->dpy;
mp = EQ(maskp, Sym_None) ? None : Get_Pixmap (maskp);
return Make_Cursor (d, XCreatePixmapCursor (d, sp, mp,
Get_Color (f), Get_Color (b), Get_Integer (x), Get_Integer (y)));
}
static Object P_Create_Glyph_Cursor (Object srcf, Object srcc, Object maskf,
Object maskc, Object f, Object b) {
Font sf = Get_Font (srcf), mf;
Display *d = FONT(srcf)->dpy;
mf = EQ(maskf, Sym_None) ? None : Get_Font (maskf);
return Make_Cursor (d, XCreateGlyphCursor (d, sf, mf,
Get_Integer (srcc), mf == None ? 0 : Get_Integer (maskc),
Get_Color (f), Get_Color (b)));
}
static Object P_Recolor_Cursor (Object c, Object f, Object b) {
Check_Type (c, T_Cursor);
XRecolorCursor (CURSOR(c)->dpy, CURSOR(c)->cursor, Get_Color (f),
Get_Color (b));
return Void;
}
void elk_init_xlib_cursor () {
Generic_Define (Cursor, "cursor", "cursor?");
Define_Primitive (P_Cursor_Display, "cursor-display", 1, 1, EVAL);
Define_Primitive (P_Free_Cursor, "free-cursor", 1, 1, EVAL);
Define_Primitive (P_Create_Cursor, "create-cursor", 6, 6, EVAL);
Define_Primitive (P_Create_Glyph_Cursor, "create-glyph-cursor",
6, 6, EVAL);
Define_Primitive (P_Recolor_Cursor, "recolor-cursor", 3, 3, EVAL);
}
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