fltk/test/editor.cxx
Michael R Sweet f87393aaa1 OK, now version 1.0.9
Updated email addresses to point to fltk.org domain...

Updated README and CHANGES files accordingly.

Updated makeinclude and Makefile files to put -L../lib before the
LDFLAGS/GLDFLAGS to avoid problem reported by Alexander.

documentation/Makefile wasn't including makeinclude.

Updated FLUID about window to show version 1.0.9.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.0@1168 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2000-06-05 21:21:24 +00:00

390 lines
9.4 KiB
C++

//
// "$Id: editor.cxx,v 1.2.2.2 2000/06/05 21:21:18 mike Exp $"
//
// A simple text editor program for the Fast Light Tool Kit (FLTK).
//
// This program is described in Chapter 4 of the FLTK Programmer's Guide.
//
// Copyright 1998-2000 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
//
//
// Include necessary headers...
//
#include <stdio.h> // Standard library files
#include <stdlib.h>
#include <string.h>
#include <FL/Fl.H> // Main FLTK header file
#include <FL/Fl_Group.H> // Fl_Group header file
#include <FL/Fl_Window.H> // Fl_Window header file
#include <FL/fl_ask.H> // FLTK convenience functions
#include <FL/fl_file_chooser.H> // FLTK file chooser
#include <FL/Fl_Menu_Bar.H> // Fl_Menu_Bar header file
#include <FL/Fl_Input.H> // Fl_Input header file
#include <FL/Fl_Multiline_Input.H> // Fl_Multiline_Input header file
#include <FL/Fl_Button.H> // Fl_Button header file
#include <FL/Fl_Return_Button.H> // Fl_Return_Button header file
Fl_Window *window;
Fl_Menu_Bar *menubar;
Fl_Multiline_Input *input;
Fl_Window *replace_dlg;
Fl_Input *replace_find;
Fl_Input *replace_with;
Fl_Button *replace_all;
Fl_Return_Button *replace_next;
Fl_Button *replace_cancel;
int changed = 0;
char filename[1024] = "";
char search[256] = "";
void set_changed(int);
void save_cb(void);
void saveas_cb(void);
void find2_cb(void);
int check_save(void) {
if (!changed) return 1;
if (fl_ask("The current file has not been saved.\n"
"Would you like to save it now?")) {
// Save the file...
save_cb();
return !changed;
}
else return (1);
}
void load_file(char *newfile) {
FILE *fp;
char buffer[8192];
int nbytes;
int pos;
input->value("");
fp = fopen(newfile, "r");
if (fp != NULL) {
// Was able to open file; let's read from it...
strcpy(filename, newfile);
pos = 0;
while ((nbytes = fread(buffer, 1, sizeof(buffer), fp)) > 0) {
input->replace(pos, pos, buffer, nbytes);
pos += nbytes;
}
fclose(fp);
input->position(0);
set_changed(0);
} else {
// Couldn't open file - say so...
fl_alert("Unable to open \'%s\' for reading!");
}
}
void save_file(char *newfile) {
FILE *fp;
fp = fopen(newfile, "w");
if (fp != NULL) {
// Was able to create file; let's write to it...
strcpy(filename, newfile);
if (fwrite(input->value(), 1, input->size(), fp) < 1) {
fl_alert("Unable to write file!");
fclose(fp);
return;
}
fclose(fp);
changed = 1;
set_changed(0);
} else {
// Couldn't open file - say so...
fl_alert("Unable to create \'%s\' for writing!");
}
}
void set_changed(int c) {
if (c != changed) {
char title[1024];
char *slash;
changed = c;
if (filename[0] == '\0') strcpy(title, "Untitled");
else {
slash = strrchr(filename, '/');
if (slash == NULL) slash = strrchr(filename, '\\');
if (slash != NULL) strcpy(title, slash + 1);
else strcpy(title, filename);
}
if (changed) strcat(title, " (modified)");
window->label(title);
}
}
void changed_cb(void) {
set_changed(1);
}
void copy_cb(void) {
input->copy();
}
void cut_cb(void) {
input->copy();
input->cut();
}
void delete_cb(void) {
input->cut();
}
void find_cb(void) {
const char *val;
val = fl_input("Search String:", search);
if (val != NULL) {
// User entered a string - go find it!
strcpy(search, val);
find2_cb();
}
}
void find2_cb(void) {
const char *val, *found;
int pos;
if (search[0] == '\0') {
// Search string is blank; get a new one...
find_cb();
return;
}
val = input->value() + input->mark();
found = strstr(val, search);
if (found != NULL) {
// Found a match; update the position and mark...
pos = input->mark() + found - val;
input->position(pos, pos + strlen(search));
}
else fl_alert("No occurrences of \'%s\' found!", search);
}
void new_cb(void) {
if (changed)
if (!check_save()) return;
filename[0] = '\0';
input->value("");
set_changed(0);
}
void open_cb(void) {
char *newfile;
if (changed)
if (!check_save()) return;
newfile = fl_file_chooser("Open File?", "*", filename);
if (newfile != NULL) load_file(newfile);
}
void paste_cb(void) {
Fl::paste(*input);
}
void quit_cb(void) {
if (changed)
if (!check_save())
return;
window->hide();
}
void replace_cb(void) {
replace_dlg->show();
}
void replace2_cb() {
const char *find, *val, *found;
int pos;
find = replace_find->value();
if (find[0] == '\0') {
// Search string is blank; get a new one...
replace_dlg->show();
return;
}
replace_dlg->hide();
val = input->value() + input->position();
found = strstr(val, find);
if (found != NULL) {
// Found a match; update the position and replace text...
pos = input->position() + found - val;
input->replace(pos, pos + strlen(find), replace_with->value());
input->position(pos + strlen(replace_with->value()));
}
else fl_alert("No occurrences of \'%s\' found!", find);
}
void replall_cb() {
const char *find, *val, *found;
int pos;
int times;
find = replace_find->value();
if (find[0] == '\0') {
// Search string is blank; get a new one...
replace_dlg->show();
return;
}
replace_dlg->hide();
input->position(0);
times = 0;
// Loop through the whole string
do {
val = input->value() + input->position();
found = strstr(val, find);
if (found != NULL) {
// Found a match; update the position and replace text...
times ++;
pos = input->position() + found - val;
input->replace(pos, pos + strlen(find), replace_with->value());
input->position(pos + strlen(replace_with->value()));
}
} while (found != NULL);
if (times > 0) fl_message("Replaced %d occurrences.", times);
else fl_alert("No occurrences of \'%s\' found!", find);
}
void replcan_cb() {
replace_dlg->hide();
}
void save_cb(void) {
if (filename[0] == '\0') {
// No filename - get one!
saveas_cb();
return;
}
else save_file(filename);
}
void saveas_cb(void) {
char *newfile;
newfile = fl_file_chooser("Save File As?", "*", filename);
if (newfile != NULL) save_file(newfile);
}
void undo_cb(void) {
input->undo();
}
Fl_Menu_Item menuitems[] = {
{ "&File", 0, 0, 0, FL_SUBMENU },
{ "&New", FL_ALT + 'n', (Fl_Callback *)new_cb },
{ "&Open...", FL_ALT + 'o', (Fl_Callback *)open_cb, 0, FL_MENU_DIVIDER },
{ "&Save", FL_ALT + 's', (Fl_Callback *)save_cb },
{ "Save &As...", FL_ALT + FL_SHIFT + 's', (Fl_Callback *)saveas_cb, 0, FL_MENU_DIVIDER },
{ "&Quit", FL_ALT + 'q', (Fl_Callback *)quit_cb },
{ 0 },
{ "&Edit", 0, 0, 0, FL_SUBMENU },
{ "&Undo", FL_ALT + 'z', (Fl_Callback *)undo_cb, 0, FL_MENU_DIVIDER },
{ "Cu&t", FL_ALT + 'x', (Fl_Callback *)cut_cb },
{ "&Copy", FL_ALT + 'c', (Fl_Callback *)copy_cb },
{ "&Paste", FL_ALT + 'v', (Fl_Callback *)paste_cb },
{ "&Delete", 0, (Fl_Callback *)delete_cb },
{ 0 },
{ "&Search", 0, 0, 0, FL_SUBMENU },
{ "&Find...", FL_ALT + 'f', (Fl_Callback *)find_cb },
{ "F&ind Again", FL_ALT + 'g', (Fl_Callback *)find2_cb },
{ "&Replace...", FL_ALT + 'r', (Fl_Callback *)replace_cb },
{ "Re&place Again", FL_ALT + 't', (Fl_Callback *)replace2_cb },
{ 0 },
{ 0 }
};
int main(int argc, char **argv) {
window = new Fl_Window(640, 480, "Untitled");
menubar = new Fl_Menu_Bar(0, 0, 640, 30);
menubar->menu(menuitems);
input = new Fl_Multiline_Input(0, 30, 640, 450);
input->callback((Fl_Callback *)changed_cb);
input->when(FL_WHEN_CHANGED);
input->textfont(FL_COURIER);
window->end();
window->resizable(input);
window->callback((Fl_Callback *)quit_cb);
replace_dlg = new Fl_Window(300, 105, "Replace");
replace_find = new Fl_Input(70, 10, 210, 25, "Find:");
replace_find->align(FL_ALIGN_LEFT);
replace_with = new Fl_Input(70, 40, 210, 25, "Replace:");
replace_with->align(FL_ALIGN_LEFT);
replace_all = new Fl_Button(10, 70, 90, 25, "Replace All");
replace_all->callback((Fl_Callback *)replall_cb);
replace_next = new Fl_Return_Button(105, 70, 120, 25, "Replace Next");
replace_next->callback((Fl_Callback *)replace2_cb);
replace_cancel = new Fl_Button(230, 70, 60, 25, "Cancel");
replace_cancel->callback((Fl_Callback *)replcan_cb);
replace_dlg->end();
replace_dlg->set_modal();
window->show(1, argv);
if (argc > 1) load_file(argv[1]);
return Fl::run();
}
//
// End of "$Id: editor.cxx,v 1.2.2.2 2000/06/05 21:21:18 mike Exp $".
//