home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Language/OS - Multiplatform Resource Library
/
LANGUAGE OS.iso
/
gnu
/
emacs.lha
/
emacs-19.16
/
src
/
sunfns.c
< prev
next >
Wrap
C/C++ Source or Header
|
1993-06-09
|
14KB
|
502 lines
/* Functions for Sun Windows menus and selection buffer.
Copyright (C) 1987 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs 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 1, or (at your option)
any later version.
GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
Author: Jeff Peck, Sun Microsystems, Inc. <peck@sun.com>
Original ideas by David Kastan and Eric Negaard, SRI International
Major help from: Steve Greenbaum, Reasoning Systems, Inc.
<froud@kestrel.arpa>
who first discovered the Menu_Base_Kludge.
*/
/*
* Emacs Lisp-Callable functions for sunwindows
*/
#include "config.h"
#include <stdio.h>
#include <errno.h>
#include <signal.h>
#include <sunwindow/window_hs.h>
#include <suntool/selection.h>
#include <suntool/menu.h>
#include <suntool/walkmenu.h>
#include <suntool/frame.h>
#include <suntool/window.h>
#include <fcntl.h>
#undef NULL /* We don't need sunview's idea of NULL */
#include "lisp.h"
#include "window.h"
#include "buffer.h"
#include "termhooks.h"
/* conversion to/from character & frame coordinates */
/* From Gosling Emacs SunWindow driver by Chris Torek */
/* Chars to frame coords. Note that we speak in zero origin. */
#define CtoSX(cx) ((cx) * Sun_Font_Xsize)
#define CtoSY(cy) ((cy) * Sun_Font_Ysize)
/* Frame coords to chars */
#define StoCX(sx) ((sx) / Sun_Font_Xsize)
#define StoCY(sy) ((sy) / Sun_Font_Ysize)
#define CHECK_GFX(x) if((win_fd<0)&&(Fsun_window_init(),(win_fd<0)))return(x)
int win_fd = -1;
struct pixfont *Sun_Font; /* The font */
int Sun_Font_Xsize; /* Width of font */
int Sun_Font_Ysize; /* Height of font */
#define Menu_Base_Kludge /* until menu_show_using_fd gets fixed */
#ifdef Menu_Base_Kludge
static Frame Menu_Base_Frame;
static int Menu_Base_fd;
static Lisp_Object sm_kludge_string;
#endif
struct cursor CurrentCursor; /* The current cursor */
static short CursorData[16]; /* Build cursor here */
static mpr_static(CursorMpr, 16, 16, 1, CursorData);
static struct cursor NewCursor = {0, 0, PIX_SRC ^ PIX_DST, &CursorMpr};
#define RIGHT_ARROW_CURSOR /* if you want the right arrow */
#ifdef RIGHT_ARROW_CURSOR
/* The default right-arrow cursor, with XOR drawing. */
static short ArrowCursorData[16] = {
0x0001,0x0003,0x0007,0x000F,0x001F,0x003F,0x007F,0x000F,
0x001B,0x0019,0x0030,0x0030,0x0060,0x0060,0x00C0,0x00C0};
static mpr_static(ArrowCursorMpr, 16, 16, 1, ArrowCursorData);
struct cursor DefaultCursor = {15, 0, PIX_SRC ^ PIX_DST, &ArrowCursorMpr};
#else
/* The default left-arrow cursor, with XOR drawing. */
static short ArrowCursorData[16] = {
0x8000,0xC000,0xE000,0xF000,0xF800,0xFC00,0xFE00,0xF000,
0xD800,0x9800,0x0C00,0x0C00,0x0600,0x0600,0x0300,0x0300};
static mpr_static(ArrowCursorMpr, 16, 16, 1, ArrowCursorData);
struct cursor DefaultCursor = {0, 0, PIX_SRC ^ PIX_DST, &ArrowCursorMpr};
#endif
/*
* Initialize window
*/
DEFUN ("sun-window-init", Fsun_window_init, Ssun_window_init, 0, 1, 0,
"One time setup for using Sun Windows with mouse.\n\
Unless optional argument FORCE is non-nil, is a noop after its first call.\n\
Returns a number representing the file descriptor of the open Sun Window,\n\
or -1 if can not open it.")
(force)
Lisp_Object force;
{
char *cp;
static int already_initialized = 0;
if ((! already_initialized) || (!NILP(force))) {
cp = getenv("WINDOW_GFX");
if (cp != 0) win_fd = open(cp, 2);
if (win_fd > 0)
{
Sun_Font = pf_default();
Sun_Font_Xsize = Sun_Font->pf_defaultsize.x;
Sun_Font_Ysize = Sun_Font->pf_defaultsize.y;
Fsun_change_cursor_icon (Qnil); /* set up the default cursor */
already_initialized = 1;
#ifdef Menu_Base_Kludge
/* Make a frame to use for putting the menu on, and get its fd. */
Menu_Base_Frame = window_create(0, FRAME,
WIN_X, 0, WIN_Y, 0,
WIN_ROWS, 1, WIN_COLUMNS, 1,
WIN_SHOW, FALSE,
FRAME_NO_CONFIRM, 1,
0);
Menu_Base_fd = (int) window_get(Menu_Base_Frame, WIN_FD);
#endif
}
}
return(make_number(win_fd));
}
/*
* Mouse sit-for (allows a shorter interval than the regular sit-for
* and can be interrupted by the mouse)
*/
DEFUN ("sit-for-millisecs", Fsit_for_millisecs, Ssit_for_millisecs, 1, 1, 0,
"Like sit-for, but ARG is milliseconds. \n\
Perform redisplay, then wait for ARG milliseconds or until\n\
input is available. Returns t if wait completed with no input.\n\
Redisplay does not happen if input is available before it starts.")
(n)
Lisp_Object n;
{
struct timeval Timeout;
int waitmask = 1;
CHECK_NUMBER (n, 0);
Timeout.tv_sec = XINT(n) / 1000;
Timeout.tv_usec = (XINT(n) - (Timeout.tv_sec * 1000)) * 1000;
if (detect_input_pending()) return(Qnil);
redisplay_preserve_echo_area ();
/*
* Check for queued keyboard input/mouse hits again
* (A bit screen update can take some time!)
*/
if (detect_input_pending()) return(Qnil);
select(1,&waitmask,0,0,&Timeout);
if (detect_input_pending()) return(Qnil);
return(Qt);
}
/*
* Sun sleep-for (allows a shorter interval than the regular sleep-for)
*/
DEFUN ("sleep-for-millisecs",
Fsleep_for_millisecs,
Ssleep_for_millisecs, 1, 1, 0,
"Pause, without updating display, for ARG milliseconds.")
(n)
Lisp_Object n;
{
unsigned useconds;
CHECK_NUMBER (n, 0);
useconds = XINT(n) * 1000;
usleep(useconds);
return(Qt);
}
DEFUN ("update-display", Fupdate_display, Supdate_display, 0, 0, 0,
"Perform redisplay.")
()
{
redisplay_preserve_echo_area ();
return(Qt);
}
/*
* Change the Sun mouse icon
*/
DEFUN ("sun-change-cursor-icon",
Fsun_change_cursor_icon,
Ssun_change_cursor_icon, 1, 1, 0,
"Change the Sun mouse cursor icon. ICON is a lisp vector whose 1st element\n\
is the X offset of the cursor hot-point, whose 2nd element is the Y offset\n\
of the cursor hot-point and whose 3rd element is the cursor pixel data\n\
expressed as a string. If ICON is nil then the original arrow cursor is used")
(Icon)
Lisp_Object Icon;
{
register unsigned char *cp;
register short *p;
register int i;
Lisp_Object X_Hot, Y_Hot, Data;
CHECK_GFX (Qnil);
/*
* If the icon is null, we just restore the DefaultCursor
*/
if (NILP(Icon))
CurrentCursor = DefaultCursor;
else {
/*
* extract the data from the vector
*/
CHECK_VECTOR (Icon, 0);
if (XVECTOR(Icon)->size < 3) return(Qnil);
X_Hot = XVECTOR(Icon)->contents[0];
Y_Hot = XVECTOR(Icon)->contents[1];
Data = XVECTOR(Icon)->contents[2];
CHECK_NUMBER (X_Hot, 0);
CHECK_NUMBER (Y_Hot, 0);
CHECK_STRING (Data, 0);
if (XSTRING(Data)->size != 32) return(Qnil);
/*
* Setup the new cursor
*/
NewCursor.cur_xhot = X_Hot;
NewCursor.cur_yhot = Y_Hot;
cp = XSTRING(Data)->data;
p = CursorData;
i = 16;
while(--i >= 0)
*p++ = (cp[0] << 8) | cp[1], cp += 2;
CurrentCursor = NewCursor;
}
win_setcursor(win_fd, &CurrentCursor);
return(Qt);
}
/*
* Interface for sunwindows selection
*/
static Lisp_Object Current_Selection;
static
sel_write (sel, file)
struct selection *sel;
FILE *file;
{
fwrite (XSTRING (Current_Selection)->data, sizeof (char),
sel->sel_items, file);
}
static
sel_clear (sel, windowfd)
struct selection *sel;
int windowfd;
{
}
static
sel_read (sel, file)
struct selection *sel;
FILE *file;
{
register int i, n;
register char *cp;
Current_Selection = make_string ("", 0);
if (sel->sel_items <= 0)
return (0);
cp = (char *) malloc(sel->sel_items);
if (cp == (char *)0) {
error("malloc failed in sel_read");
return(-1);
}
n = fread(cp, sizeof(char), sel->sel_items, file);
if (n > sel->sel_items) {
error("fread botch in sel_read");
return(-1);
} else if (n < 0) {
error("Error reading selection.");
return(-1);
}
/*
* The shelltool select saves newlines as carriage returns,
* but emacs wants newlines.
*/
for (i = 0; i < n; i++)
if (cp[i] == '\r') cp[i] = '\n';
Current_Selection = make_string (cp, n);
free (cp);
return (0);
}
/*
* Set the window system "selection" to be the arg STRING
*/
DEFUN ("sun-set-selection", Fsun_set_selection, Ssun_set_selection, 1, 1,
"sSet selection to: ",
"Set the current sunwindow selection to STRING.")
(str)
Lisp_Object str;
{
struct selection selection;
CHECK_STRING (str, 0);
Current_Selection = str;
CHECK_GFX (Qnil);
selection.sel_type = SELTYPE_CHAR;
selection.sel_items = XSTRING (str)->size;
selection.sel_itembytes = 1;
selection.sel_pubflags = 1;
selection_set(&selection, sel_write, sel_clear, win_fd);
return (Qt);
}
/*
* Stuff the current window system selection into the current buffer
*/
DEFUN ("sun-get-selection", Fsun_get_selection, Ssun_get_selection, 0, 0, 0,
"Return the current sunwindows selection as a string.")
()
{
CHECK_GFX (Current_Selection);
selection_get (sel_read, win_fd);
return (Current_Selection);
}
Menu sun_menu_create();
Menu_item
sun_item_create (Pair)
Lisp_Object Pair;
{
/* In here, we depend on Lisp supplying zero terminated strings in the data*/
/* so we can just pass the pointers, and not recopy anything */
Menu_item menu_item;
Menu submenu;
Lisp_Object String;
Lisp_Object Value;
if (!CONSP(Pair)) wrong_type_argument(Qlistp, Pair);
String = Fcar(Pair);
CHECK_STRING(String, 0);
Value = Fcdr(Pair);
if(XTYPE(Value) == Lisp_Symbol)
Value = XSYMBOL(Value)->value;
if(XTYPE(Value) == Lisp_Vector) {
submenu = sun_menu_create (Value);
menu_item = menu_create_item
(MENU_RELEASE, MENU_PULLRIGHT_ITEM, XSTRING(String)->data, submenu, 0);
} else {
menu_item = menu_create_item
(MENU_RELEASE, MENU_STRING_ITEM, XSTRING(String)->data, Value, 0);
}
return menu_item;
}
Menu
sun_menu_create (Vector)
Lisp_Object Vector;
{
Menu menu;
int i;
CHECK_VECTOR(Vector,0);
menu=menu_create(0);
for(i = 0; i < XVECTOR(Vector)->size; i++) {
menu_set (menu, MENU_APPEND_ITEM,
sun_item_create(XVECTOR(Vector)->contents[i]), 0);
}
return menu;
}
/*
* If the first item of the menu has nil as its value, then make the
* item look like a label by inverting it and making it unselectable.
* Returns 1 if the label was made, 0 otherwise.
*/
int
make_menu_label (menu)
Menu menu;
{
int made_label_p = 0;
if (( menu_get(menu, MENU_NITEMS) > 0 ) && /* At least one item */
((Lisp_Object) menu_get(menu_get(menu, MENU_NTH_ITEM, 1),
MENU_VALUE) == Qnil )) {
menu_set(menu_get(menu, MENU_NTH_ITEM, 1),
MENU_INVERT, TRUE,
MENU_FEEDBACK, FALSE,
0);
made_label_p = 1;
}
return made_label_p;
}
/*
* Do a pop-up menu and return the selected value
*/
DEFUN ("sun-menu-internal",
Fsun_menu_internal,
Ssun_menu_internal, 5, 5, 0,
"Set up a SunView pop-up menu and return the user's choice.\n\
Arguments WINDOW, X, Y, BUTTON, and MENU.\n\
*** User code should generally use sun-menu-evaluate ***\n\
\n\
Arguments WINDOW, X, Y, BUTTON, and MENU.\n\
Put MENU up in WINDOW at position X, Y.\n\
The BUTTON argument specifies the button to be released that selects an item:\n\
1 = LEFT BUTTON\n\
2 = MIDDLE BUTTON\n\
4 = RIGHT BUTTON\n\
The MENU argument is a vector containing (STRING . VALUE) pairs.\n\
The VALUE of the selected item is returned.\n\
If the VALUE of the first pair is nil, then the first STRING will be used\n\
as a menu label.")
(window, X_Position, Y_Position, Button, MEnu)
Lisp_Object window, X_Position, Y_Position, Button, MEnu;
{
Menu menu;
int button, xpos, ypos;
Event event0;
Event *event = &event0;
Lisp_Object Value, Pair;
CHECK_NUMBER(X_Position, 0);
CHECK_NUMBER(Y_Position, 1);
CHECK_LIVE_WINDOW(window, 2);
CHECK_NUMBER(Button, 3);
CHECK_VECTOR(MEnu, 4);
CHECK_GFX (Qnil);
xpos = CtoSX (XWINDOW(window)->left + XINT(X_Position));
ypos = CtoSY (XWINDOW(window)->top + XINT(Y_Position));
#ifdef Menu_Base_Kludge
{static Lisp_Object symbol[2];
symbol[0] = Fintern (sm_kludge_string, Qnil);
Pair = Ffuncall (1, symbol);
xpos += XINT (XCONS (Pair)->cdr);
ypos += XINT (XCONS (Pair)->car);
}
#endif
button = XINT(Button);
if(button == 4) button = 3;
event_set_id (event, BUT(button));
event_set_down (event);
event_set_x (event, xpos);
event_set_y (event, ypos);
menu = sun_menu_create(MEnu);
make_menu_label(menu);
#ifdef Menu_Base_Kludge
Value = (Lisp_Object) menu_show(menu, Menu_Base_Frame, event, 0);
#else
/* This confuses the notifier or something: */
Value = (Lisp_Object) menu_show_using_fd(menu, win_fd, event, 0);
/*
* Right button gets lost, and event sequencing or delivery gets mixed up
* So, until that gets fixed, we use this <Menu_Base_Frame> kludge:
*/
#endif
menu_destroy (menu);
return ((int)Value ? Value : Qnil);
}
/*
* Define everything
*/
syms_of_sunfns()
{
#ifdef Menu_Base_Kludge
/* i'm just too lazy to re-write this into C code */
/* so we will call this elisp function from C */
sm_kludge_string = make_pure_string ("sm::menu-kludge", 15);
#endif /* Menu_Base_Kludge */
defsubr(&Ssun_window_init);
defsubr(&Ssit_for_millisecs);
defsubr(&Ssleep_for_millisecs);
defsubr(&Supdate_display);
defsubr(&Ssun_change_cursor_icon);
defsubr(&Ssun_set_selection);
defsubr(&Ssun_get_selection);
defsubr(&Ssun_menu_internal);
}