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- /* 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>
- This file provides selection and menu support in SunView
- [also a function to change the sunview cursor]
-
- 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.
- Modified 12/91 Jeff Peck to compile without sunview libraries:
- #define NO_SUNVIEW
- disables SunView support leaving just sit-for-millisecs, sleep-for-millisecs
- */
-
- /*
- * Emacs Lisp-Callable functions for sunwindows
- */
- #include "config.h"
-
- #include <stdio.h>
- #include <errno.h>
- #include <signal.h>
-
- #ifndef NO_SUNVIEW
- #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>
- #endif /* NO_SUNVIEW */
-
- #include <sys/time.h> /* for tv_sec, tv_usec */
- #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"
-
- #ifndef NO_SUNVIEW
- /* conversion to/from character & screen coordinates */
- /* From Gosling Emacs SunWindow driver by Chris Torek */
-
- /* Chars to screen coords. Note that we speak in zero origin. */
- #define CtoSX(cx) ((cx) * Sun_Font_Xsize)
- #define CtoSY(cy) ((cy) * Sun_Font_Ysize)
-
- /* Screen coords to chars */
- #define StoCX(sx) ((sx) / Sun_Font_Xsize)
- #define StoCY(sy) ((sy) / Sun_Font_Ysize)
-
- #endif /* NO_SUNVIEW */
- #define CHECK_GFX(x) if((win_fd<0)&&(Fsun_window_init(),(win_fd<0)))return(x)
- int win_fd = -1;
- #ifndef NO_SUNVIEW
- 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 /* Menu_Base_Kludge */
- 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-arror 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 /* RIGHT_ARROW_CURSOR */
- #endif /* NO_SUNVIEW */
-
- /*
- * Initialize window
- */
- DEFUN ("sun-window-init", Fsun_window_init, Ssun_window_init, 0, 1, 0,
- #ifndef NO_SUNVIEW
- "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."
- #else
- "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\
- Dummy version, compiled with NO_SUNWINDOW, returns -1."
- #endif /* NO_SUNVIEW */
- )
- (force)
- Lisp_Object force;
- {
- char *cp;
- static int already_initialized = 0;
- #ifndef NO_SUNVIEW
- if ((! already_initialized) || (!NULL(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 /* Menu_Base_Kludge */
- }
- }
- #endif /* NO_SUNVIEW */
- 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 ();
- /*
- * 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);
- }
-
- #ifndef NO_SUNVIEW
- /*
- * 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 (NULL(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 carrige 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_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 /* Menu_Base_Kludge */
-
- 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_Base_Kludge */
- menu_destroy (menu);
-
- return ((int)Value ? Value : Qnil);
- }
- #endif /* NO_SUNVIEW */
-
- /*
- * Define everything
- */
- syms_of_sunfns()
- {
- #ifndef NO_SUNVIEW
- #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 */
-
- #endif /* NO_SUNVIEW */
- defsubr(&Ssun_window_init);
- defsubr(&Ssit_for_millisecs);
- defsubr(&Ssleep_for_millisecs);
- defsubr(&Supdate_display);
- #ifndef NO_SUNVIEW
- defsubr(&Ssun_change_cursor_icon);
- defsubr(&Ssun_set_selection);
- defsubr(&Ssun_get_selection);
- defsubr(&Ssun_menu_internal);
- #endif /* NO_SUNVIEW */
- }
-