275 lines
7.1 KiB
C
275 lines
7.1 KiB
C
/*
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* Copyright (c) 2001 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the XFree86 Project shall
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* not be used in advertising or otherwise to promote the sale, use or other
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* dealings in this Software without prior written authorization from the
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* XFree86 Project.
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*
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* Author: Paulo César Pereira de Andrade
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*/
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/* $XFree86: xc/programs/xedit/lisp.c,v 1.20tsi Exp $ */
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#include "xedit.h"
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#include "lisp/lisp.h"
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#include "lisp/xedit.h"
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#include <unistd.h>
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#include <locale.h>
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#include <ctype.h>
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#include <X11/Xaw/SmeBSB.h>
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#include <X11/Xaw/SimpleMenu.h>
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/*
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* Prototypes
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*/
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static void XeditDoLispEval(Widget);
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static void EditModeCallback(Widget, XtPointer, XtPointer);
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/*
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* Initialization
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*/
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static int lisp_initialized;
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extern Widget scratch;
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static Widget edit_mode_menu, edit_mode_entry, edit_mode_none;
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/*
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* Implementation
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*/
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void
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XeditLispInitialize(void)
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{
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setlocale(LC_NUMERIC, "C");
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lisp_initialized = 1;
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LispBegin();
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LispXeditInitialize();
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}
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void
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XeditLispCleanUp(void)
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{
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LispEnd();
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}
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void
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XeditLispEval(Widget w, XEvent *event, String *params, Cardinal *num_params)
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{
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XeditDoLispEval(messwidget);
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}
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void
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XeditPrintLispEval(Widget w, XEvent *event, String *params, Cardinal *num_params)
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{
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if (XawTextGetSource(w) == scratch) {
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XtCallActionProc(w, "newline", event, params, *num_params);
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XeditDoLispEval(w);
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}
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else
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XtCallActionProc(w, "newline-and-indent", event, params, *num_params);
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}
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void
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XeditKeyboardReset(Widget w, XEvent *event, String *params, Cardinal *num_params)
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{
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XtCallActionProc(w, "keyboard-reset", event, params, *num_params);
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}
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void
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SetTextProperties(xedit_flist_item *item)
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{
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if (lisp_initialized) {
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Widget source = XawTextGetSource(textwindow);
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XawTextPosition top = XawTextTopPosition(textwindow);
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if (source != item->source)
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XawTextSetSource(textwindow, item->source, 0);
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XeditLispSetEditMode(item, NULL);
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if (source != item->source)
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XawTextSetSource(textwindow, source, top);
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}
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}
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void
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UnsetTextProperties(xedit_flist_item *item)
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{
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XeditLispUnsetEditMode(item);
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}
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static void
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XeditDoLispEval(Widget output)
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{
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Widget src;
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XawTextBlock block;
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XawTextPosition position, end;
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/* get lisp expression */
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src = XawTextGetSource(textwindow);
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position = XawTextGetInsertionPoint(textwindow);
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--position;
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while (position >= 0) {
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(void)XawTextSourceRead(src, position, &block, 1);
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if (!isspace(block.ptr[0]))
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break;
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--position;
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}
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end = position + 1;
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if (block.ptr[0] != ')') {
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while (position >= 0) {
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(void)XawTextSourceRead(src, position, &block, 1);
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if (isspace(block.ptr[0]) ||
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block.ptr[0] == '(' ||
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block.ptr[0] == ')' ||
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block.ptr[0] == '"' ||
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block.ptr[0] == '|')
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break;
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--position;
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}
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if (!isspace(block.ptr[0]))
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++position;
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}
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else {
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/* XXX note that embedded '(' and ')' will confuse this code */
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XawTextPosition last, tmp;
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int level = 0;
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char ptr[2];
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last = position;
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ptr[1] = '\0';
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block.ptr = ptr;
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do {
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block.ptr[0] = '(';
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position = XawTextSourceSearch(src, last, XawsdLeft, &block);
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if (position == XawTextSearchError) {
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Feep();
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return;
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}
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block.ptr[0] = ')';
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tmp = position;
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do {
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tmp = XawTextSourceSearch(src, tmp, XawsdRight, &block);
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if (tmp == XawTextSearchError) {
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Feep();
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return;
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}
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if (tmp <= last)
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++level;
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} while (++tmp <= last);
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--level;
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last = position;
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} while (level);
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/* check for extra characters */
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while (position > 0) {
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(void)XawTextSourceRead(src, position - 1, &block, 1);
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if (block.length != 1 ||
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isspace(block.ptr[0]) ||
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block.ptr[0] == ')' ||
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block.ptr[0] == '"' ||
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block.ptr[0] == '|')
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break;
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--position;
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}
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}
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if (position < 0 || position >= end)
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Feep();
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else
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XeditLispExecute(output, position, end);
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}
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void
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CreateEditModePopup(Widget parent)
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{
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int i;
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Widget sme;
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static char *editModes = "editModes";
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XtVaCreateManagedWidget("modeMenuItem", smeBSBObjectClass, parent,
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XtNmenuName, editModes, NULL);
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edit_mode_menu = XtCreatePopupShell(editModes, simpleMenuWidgetClass,
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parent, NULL, 0);
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XtRealizeWidget(edit_mode_menu);
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edit_mode_none = XtCreateManagedWidget("none", smeBSBObjectClass,
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edit_mode_menu, NULL, 0);
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XtAddCallback(edit_mode_none, XtNcallback, EditModeCallback, NULL);
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for (i = 0; i < num_mode_infos; i++) {
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sme = XtVaCreateManagedWidget("mode", smeBSBObjectClass, edit_mode_menu,
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XtNlabel, mode_infos[i].desc, NULL);
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XtAddCallback(sme, XtNcallback, EditModeCallback,
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(XtPointer)(mode_infos + i));
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mode_infos[i].sme = sme;
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}
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}
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void
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SetEditModeMenu(void)
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{
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int i;
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Widget old_entry = edit_mode_entry, new_entry = edit_mode_none;
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xedit_flist_item *item = FindTextSource(XawTextGetSource(textwindow), NULL);
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for (i = 0; i < num_mode_infos; i++) {
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if (item->xldata && item->xldata->syntax &&
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mode_infos[i].syntax == item->xldata->syntax) {
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new_entry = mode_infos[i].sme;
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break;
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}
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}
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if (old_entry != new_entry) {
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if (old_entry)
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XtVaSetValues(old_entry, XtNleftBitmap, None, NULL);
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XtVaSetValues(new_entry, XtNleftBitmap, flist.pixmap, NULL);
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edit_mode_entry = new_entry;
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}
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}
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static void
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EditModeCallback(Widget w, XtPointer client_data, XtPointer call_data)
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{
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Widget source = XawTextGetSource(textwindow);
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EditModeInfo *info = (EditModeInfo*)client_data;
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xedit_flist_item *item = FindTextSource(source, NULL);
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/* If no edit mode selected and selecting the plain/none mode */
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if ((info == NULL &&
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(item->xldata == NULL || item->xldata->syntax == NULL)) ||
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/* if selecting the current mode */
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(info && item && item->xldata && info->syntax &&
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info->syntax == item->xldata->syntax))
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return;
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XawTextSourceClearEntities(source,
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XawTextSourceScan(source, 0, XawstAll,
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XawsdLeft, 1, True),
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XawTextSourceScan(source, 0, XawstAll,
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XawsdRight, 1, True));
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XeditLispUnsetEditMode(item);
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if (info)
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XeditLispSetEditMode(item, info->symbol);
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else
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item->properties = NULL;
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UpdateTextProperties(1);
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}
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