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authorJoseph Arceneaux <[email protected]>1989-01-13 06:21:24 +0000
committerJoseph Arceneaux <[email protected]>1989-01-13 06:21:24 +0000
commit497d1817d9f8fc369c8227835764dc50484e4c36 (patch)
tree5215b6df020837c87c11b7836a0e99b9ff40d4a1 /src
parent6b3ee98ab2a8328ea48734410e76b2d753fe55ae (diff)
Initial revision
Diffstat (limited to 'src')
-rw-r--r--src/sunfns.c501
1 files changed, 501 insertions, 0 deletions
diff --git a/src/sunfns.c b/src/sunfns.c
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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 distributed in the hope that it will be useful,
+but without any warranty. No author or distributor
+accepts responsibility to anyone for the consequences of using it
+or for whether it serves any particular purpose or works at all,
+unless he says so in writing.
+
+Everyone is granted permission to copy, modify and redistribute
+GNU Emacs, but only under the conditions described in the
+document "GNU Emacs copying permission notice". An exact copy
+of the document is supposed to have been given to you along with
+GNU Emacs so that you can know how you may redistribute it all.
+It should be in a file named COPYING. Among other things, the
+copyright notice and this notice must be preserved on all copies.
+
+Author: Jeff Peck, Sun Microsystems, Inc. <[email protected]>
+Original ideas by David Kastan and Eric Negaard, SRI International
+Major help from: Steve Greenbaum, Reasoning Systems, Inc.
+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 & 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)
+
+#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-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
+
+/*
+ * 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) || (!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
+ }
+ }
+ 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);
+ DoDsp(1);
+ /*
+ * 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.")
+ ()
+{
+ DoDsp(1);
+ 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 (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
+
+ 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);
+}