/*
Copyright (c) 1997 Douglas Keller
This file is part of XEmacs.
XEmacs is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
XEmacs is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with XEmacs. If not, see . */
/* Synched up with: Not in FSF. */
#include
#include "lisp.h"
#include "device-impl.h"
#include "console-x-impl.h"
#include "balloon_help.h"
/* #### start of hack */
static unsigned long
alloc_color (Display* dpy, const char* colorname, int light)
{
Colormap cmap = DEVICE_X_COLORMAP (XDEVICE (get_default_device (Qx)));
unsigned long pixel = 0;
XColor color;
if (XParseColor(dpy, cmap, colorname, &color) && XAllocColor(dpy, cmap, &color))
{
pixel = color.pixel;
}
else
{
if (light)
{
printf ("Warning: could not allocate color \"%s\", using \"white\"\n",
colorname);
pixel = alloc_color (dpy, "white", True);
}
else
{
printf ("Warning: could not allocate color \"%s\", using \"black\"\n",
colorname);
pixel = alloc_color (dpy, "black", True);
}
}
return pixel;
}
static XFontStruct *
open_font (Display* dpy, const char* font_name)
{
XFontStruct* fontStruct = NULL;
fontStruct = XLoadQueryFont (dpy, font_name ? font_name : "fixed");
if (fontStruct == NULL)
{
printf ("Warning: could not load font \"%s\", using \"fixed\".\n", font_name);
fontStruct = XLoadQueryFont (dpy, "fixed");
assert (fontStruct != NULL);
}
return fontStruct;
}
static void
init (void)
{
static int init_p = 0;
if (!init_p)
{
Pixel fg, bg, shine, shadow;
XFontStruct* font;
Display *dpy = DEVICE_X_DISPLAY (XDEVICE (get_default_device (Qx)));
fg = alloc_color (dpy, "grey60", 1);
bg = alloc_color (dpy, "black", 0);
shine = alloc_color (dpy, "grey80", 1);
shadow = alloc_color (dpy, "grey40", 0);
font = open_font (dpy, "-adobe-helvetica-medium-r-normal--12-*");
balloon_help_create (dpy, bg, fg, shine, shadow, font);
init_p = 1;
}
}
/* #### end of hack */
DEFUN ("show-balloon-help", Fshow_balloon_help, 1, 1, 0, /*
Show balloon help.
*/
(string))
{
char *p;
CHECK_STRING (string);
p = (char *) XSTRING_DATA (string);
init ();
balloon_help_show (p);
return Qnil;
}
DEFUN ("hide-balloon-help", Fhide_balloon_help, 0, 0, 0, /*
Hide balloon help.
*/
())
{
init ();
balloon_help_hide ();
return Qnil;
}
DEFUN ("balloon-help-move-to-pointer", Fballoon_help_move_to_pointer, 0, 0, 0, /*
Move the balloon help to the place where the pointer currently resides.
*/
())
{
init ();
balloon_help_move_to_pointer ();
return Qnil;
}
/************************************************************************/
/* initialization */
/************************************************************************/
void
syms_of_balloon_x (void)
{
DEFSUBR (Fshow_balloon_help);
DEFSUBR (Fhide_balloon_help);
DEFSUBR (Fballoon_help_move_to_pointer);
}
void
vars_of_balloon_x (void)
{
Fprovide (intern ("c-balloon-help"));
}