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| -rw-r--r-- | examples/Makefile | 1 | ||||
| -rw-r--r-- | examples/nativefilechooser-simple-app.cxx | 144 |
2 files changed, 145 insertions, 0 deletions
diff --git a/examples/Makefile b/examples/Makefile index 776cc2ac6..c524d7e2f 100644 --- a/examples/Makefile +++ b/examples/Makefile @@ -4,6 +4,7 @@ ALL = howto-add_fd-and-popen$(EXEEXT) \ howto-parse-args$(EXEEXT) \ howto-text-over-image-button$(EXEEXT) \ menubar-add$(EXEEXT) \ + nativefilechooser-simple-app$(EXEEXT) \ table-as-container$(EXEEXT) \ table-simple$(EXEEXT) \ table-sort$(EXEEXT) \ diff --git a/examples/nativefilechooser-simple-app.cxx b/examples/nativefilechooser-simple-app.cxx new file mode 100644 index 000000000..0f1eb01dd --- /dev/null +++ b/examples/nativefilechooser-simple-app.cxx @@ -0,0 +1,144 @@ +// +// "$Id$" +// +// An example of how to use Fl_Native_File_Chooser to open & save files. +// +// Copyright 2010 Greg Ercolano. +// Copyright 1998-2010 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 on the following page: +// +// http://www.fltk.org/str.php +// +#include <stdio.h> // printf +#include <stdlib.h> // exit,malloc +#include <string.h> // strerror +#include <errno.h> // errno +#include <FL/Fl.H> +#include <FL/Fl_Window.H> +#include <FL/Fl_Menu_Bar.H> +#include <FL/Fl_Native_File_Chooser.H> +#include <FL/fl_ask.H> + +class Application : public Fl_Window { + Fl_Native_File_Chooser *fc; + // Does file exist? + int exist(const char *filename) { + FILE *fp = fopen(filename, "r"); + if (fp) { fclose(fp); return(1); } + else { return(0); } + } + // 'Open' the file + void open(const char *filename) { + printf("Open '%s'\n", filename); + } + // 'Save' the file + // Create the file if it doesn't exist + // and save something in it. + // + void save(const char *filename) { + printf("Saving '%s'\n", filename); + if ( !exist(filename) ) { + FILE *fp = fopen(filename, "w"); // create file if it doesn't exist + if ( fp ) { + fprintf(fp, "Hello world.\n"); + fclose(fp); + } else { + fl_message("Error: %s: %s", filename, strerror(errno)); + } + } + } + // Handle an 'Open' request from the menu + static void open_cb(Fl_Widget *w, void *v) { + Application *app = (Application*)v; + app->fc->title("Open"); + app->fc->type(Fl_Native_File_Chooser::BROWSE_FILE); // only picks files that exist + switch ( app->fc->show() ) { + case -1: break; // Error + case 1: break; // Cancel + default: // Choice + app->fc->preset_file(app->fc->filename()); + app->open(app->fc->filename()); + break; + } + } + // Handle a 'Save as' request from the menu + static void saveas_cb(Fl_Widget *w, void *v) { + Application *app = (Application*)v; + app->fc->title("Save As"); + app->fc->type(Fl_Native_File_Chooser::BROWSE_SAVE_FILE); // need this if file doesn't exist yet + switch ( app->fc->show() ) { + case -1: break; // Error + case 1: break; // Cancel + default: // Choice + app->fc->preset_file(app->fc->filename()); + app->save(app->fc->filename()); + break; + } + } + // Handle a 'Save' request from the menu + static void save_cb(Fl_Widget *w, void *v) { + Application *app = (Application*)v; + if ( strlen(app->fc->filename()) == 0 ) { + saveas_cb(w,v); + } else { + app->save(app->fc->filename()); + } + } + static void quit_cb(Fl_Widget *w, void *v) { + exit(0); + } + // Return an 'untitled' default pathname + const char* untitled_default() { + static char *filename = 0; + if ( !filename ) { + const char *home = + getenv("HOME") ? getenv("HOME") : // unix + getenv("HOME_PATH") ? getenv("HOME_PATH") : // windows + "."; // other + filename = (char*)malloc(strlen(home)+20); + sprintf(filename, "%s/untitled.txt", home); + } + return(filename); + } +public: + // CTOR + Application() : Fl_Window(400,200,"Native File Chooser Example") { + Fl_Menu_Bar *menu = new Fl_Menu_Bar(0,0,400,25); + menu->add("&File/&Open", "^o", open_cb, (void*)this); + menu->add("&File/&Save", "^s", save_cb, (void*)this); + menu->add("&File/&Save As", 0, saveas_cb, (void*)this); + menu->add("&File/&Quit", "^q", quit_cb); + // Initialize the file chooser + fc = new Fl_Native_File_Chooser(); + fc->filter("Text\t*.txt\n"); + fc->preset_file(untitled_default()); + end(); + } +}; + +int main(int argc, char *argv[]) { + Fl::scheme("gtk+"); + Application *app = new Application(); + app->show(argc,argv); + return(Fl::run()); +} + +// +// End of "$Id$". +// |