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// "$Id: Fl_Native_File_Chooser_MAC.cxx 7354 2010-03-29 11:07:29Z matt $"
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// FLTK native OS file chooser widget
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// Copyright 1998-2005 by Bill Spitzak and others.
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// Copyright 2004 Greg Ercolano.
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// Please report all bugs and problems to:
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// http://www.fltk.org/str.php
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// o When doing 'open file', only dir is preset, not filename.
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// Possibly 'preset_file' could be used to select the filename.
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#ifndef FL_DOXYGEN // PREVENT DOXYGEN'S USE OF THIS FILE
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#include "Fl_Native_File_Chooser_common.cxx" // strnew/strfree/strapp/chrcat
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#include <libgen.h> // dirname(3)
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#include <sys/types.h> // stat(2)
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#include <sys/stat.h> // stat(2)
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#include <FL/Fl_Native_File_Chooser.H>
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#include <FL/filename.H>
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// FREE PATHNAMES ARRAY, IF IT HAS ANY CONTENTS
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void Fl_Native_File_Chooser::clear_pathnames() {
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while ( --_tpathnames >= 0 ) {
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_pathnames[_tpathnames] = strfree(_pathnames[_tpathnames]);
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// SET A SINGLE PATHNAME
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void Fl_Native_File_Chooser::set_single_pathname(const char *s) {
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_pathnames = new char*[1];
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_pathnames[0] = strnew(s);
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Fl_Native_File_Chooser::Fl_Native_File_Chooser(int val) {
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_options = NO_OPTIONS;
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memset(_filt_patt, 0, sizeof(char*) * MAXFILTERS);
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Fl_Native_File_Chooser::~Fl_Native_File_Chooser() {
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// _opts // nothing to manage
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// _options // nothing to manage
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// _keepstate // nothing to manage
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// _tempitem // nothing to manage
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_directory = strfree(_directory);
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_title = strfree(_title);
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_preset_file = strfree(_preset_file);
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_filter = strfree(_filter);
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//_filt_names // managed by clear_filters()
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//_filt_patt[i] // managed by clear_filters()
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//_filt_total // managed by clear_filters()
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//_filt_value // nothing to manage
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_errmsg = strfree(_errmsg);
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// GET TYPE OF BROWSER
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int Fl_Native_File_Chooser::type() const {
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void Fl_Native_File_Chooser::options(int val) {
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int Fl_Native_File_Chooser::options() const {
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// SHOW THE BROWSER WINDOW
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// 0 - user picked a file
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// 1 - user cancelled
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// -1 - failed; errmsg() has reason
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int Fl_Native_File_Chooser::show() {
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// Make sure fltk interface updates before posting our dialog
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// Internal use only.
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void Fl_Native_File_Chooser::errmsg(const char *msg) {
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_errmsg = strfree(_errmsg);
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_errmsg = strnew(msg);
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// RETURN ERROR MESSAGE
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const char *Fl_Native_File_Chooser::errmsg() const {
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return(_errmsg ? _errmsg : "No error");
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const char* Fl_Native_File_Chooser::filename() const {
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if ( _pathnames && _tpathnames > 0 ) return(_pathnames[0]);
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// GET FILENAME FROM LIST OF FILENAMES
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const char* Fl_Native_File_Chooser::filename(int i) const {
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if ( _pathnames && i < _tpathnames ) return(_pathnames[i]);
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// GET TOTAL FILENAMES CHOSEN
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int Fl_Native_File_Chooser::count() const {
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// Value can be NULL for none.
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void Fl_Native_File_Chooser::directory(const char *val) {
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_directory = strfree(_directory);
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_directory = strnew(val);
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// GET PRESET PATHNAME
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// Returned value can be NULL if none set.
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const char* Fl_Native_File_Chooser::directory() const {
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// Value can be NULL if no title desired.
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void Fl_Native_File_Chooser::title(const char *val) {
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_title = strfree(_title);
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_title = strnew(val);
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// Returned value can be NULL if none set.
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const char *Fl_Native_File_Chooser::title() const {
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// Can be NULL if no filter needed
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void Fl_Native_File_Chooser::filter(const char *val) {
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_filter = strfree(_filter);
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_filter = strnew(val);
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// Parse filter user specified
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// IN: _filter = "C Files\t*.{cxx,h}\nText Files\t*.txt"
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// OUT: _filt_names = "C Files\tText Files"
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// _filt_patt[0] = "*.{cxx,h}"
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// _filt_patt[1] = "*.txt"
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parse_filter(_filter);
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// Returned value can be NULL if none set.
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const char *Fl_Native_File_Chooser::filter() const {
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// Internal use only.
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void Fl_Native_File_Chooser::clear_filters() {
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_filt_names = strfree(_filt_names);
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for (int i=0; i<_filt_total; i++) {
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_filt_patt[i] = strfree(_filt_patt[i]);
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// PARSE USER'S FILTER SPEC
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// Parses user specified filter ('in'),
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// breaks out into _filt_patt[], _filt_names, and _filt_total.
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// IN: OUT:_filt_names OUT: _filt_patt
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// ------------------------------------ ------------------ ---------------
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// "*.{ma,mb}" "*.{ma,mb} Files" "*.{ma,mb}"
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// "*.[abc]" "*.[abc] Files" "*.[abc]"
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// "*.txt" "*.txt Files" "*.c"
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// "C Files\t*.[ch]" "C Files" "*.[ch]"
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// "C Files\t*.[ch]\nText Files\t*.cxx" "C Files" "*.[ch]"
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// IN:"C Files\t*.{cxx,h}"
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// mode: nnnnnnn wwwwwwwww
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void Fl_Native_File_Chooser::parse_filter(const char *in) {
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int has_name = strchr(in, '\t') ? 1 : 0;
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char mode = has_name ? 'n' : 'w'; // parse mode: n=title, w=wildcard
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char wildcard[1024] = ""; // parsed wildcard
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char name[1024] = "";
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// Parse filter user specified
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//// printf("WORKING ON '%c': mode=<%c> name=<%s> wildcard=<%s>\n",
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//// *in, mode, name, wildcard);
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// FINISHED PARSING NAME?
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if ( mode != 'n' ) goto regchar;
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// FINISHED PARSING ONE OF POSSIBLY SEVERAL FILTERS?
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// If user didn't specify a name, make one
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if ( name[0] == '\0' ) {
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sprintf(name, "%.*s Files", (int)sizeof(name)-10, wildcard);
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// APPEND NEW FILTER TO LIST
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// Add to filtername list
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// Tab delimit if more than one. We later break
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// tab delimited string into CFArray with
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// CFStringCreateArrayBySeparatingStrings()
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_filt_names = strapp(_filt_names, "\t");
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_filt_names = strapp(_filt_names, name);
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// Add filter to the pattern array
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_filt_patt[_filt_total++] = strnew(wildcard);
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wildcard[0] = name[0] = '\0';
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mode = strchr(in, '\t') ? 'n' : 'w';
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if ( *in == '\0' ) return; // done
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else continue; // not done yet, more filters
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// Parse all other chars
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default: // handle all non-special chars
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regchar: // handle regular char
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case 'n': chrcat(name, *in); continue;
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case 'w': chrcat(wildcard, *in); continue;
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// Value can be NULL for none.
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void Fl_Native_File_Chooser::preset_file(const char* val) {
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_preset_file = strfree(_preset_file);
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_preset_file = strnew(val);
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// Returned value can be NULL if none set.
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const char* Fl_Native_File_Chooser::preset_file() {
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return(_preset_file);
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#import <Cocoa/Cocoa.h>
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#define UNLIKELYPREFIX "___fl_very_unlikely_prefix_"
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#ifndef MAC_OS_X_VERSION_10_6
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#define MAC_OS_X_VERSION_10_6 1060
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int Fl_Native_File_Chooser::get_saveas_basename(void) {
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char *q = strdup( [[(NSSavePanel*)_panel filename] fileSystemRepresentation] );
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id delegate = [(NSSavePanel*)_panel delegate];
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if (delegate != nil) {
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const char *d = [[(NSSavePanel*)_panel directory] fileSystemRepresentation];
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int l = strlen(d) + 1;
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int lu = strlen(UNLIKELYPREFIX);
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// Remove UNLIKELYPREFIX between directory and filename parts
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memmove(q + l, q + l + lu, strlen(q + l + lu) + 1);
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set_single_pathname( q );
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// SET THE TYPE OF BROWSER
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void Fl_Native_File_Chooser::type(int val) {
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case BROWSE_MULTI_FILE:
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case BROWSE_DIRECTORY:
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case BROWSE_MULTI_DIRECTORY:
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_panel = [NSOpenPanel openPanel];
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case BROWSE_SAVE_DIRECTORY:
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case BROWSE_SAVE_FILE:
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_panel = [NSSavePanel savePanel];
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@interface FLopenDelegate : NSObject
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#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
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<NSOpenSavePanelDelegate>
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NSPopUpButton *nspopup;
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char **filter_pattern;
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- (FLopenDelegate*)setPopup:(NSPopUpButton*)popup filter_pattern:(char**)pattern;
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- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename;
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@implementation FLopenDelegate
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- (FLopenDelegate*)setPopup:(NSPopUpButton*)popup filter_pattern:(char**)pattern
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filter_pattern = pattern;
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- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename
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if ( [nspopup indexOfSelectedItem] == [nspopup numberOfItems] - 1) return YES;
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const char *pathname = [filename fileSystemRepresentation];
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if ( fl_filename_isdir(pathname) ) return YES;
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if ( fl_filename_match(pathname, filter_pattern[ [nspopup indexOfSelectedItem] ]) ) return YES;
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@interface FLsaveDelegate : NSObject
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#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
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<NSOpenSavePanelDelegate>
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- (NSString *)panel:(id)sender userEnteredFilename:(NSString *)filename confirmed:(BOOL)okFlag;
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@implementation FLsaveDelegate
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- (NSString *)panel:(id)sender userEnteredFilename:(NSString *)filename confirmed:(BOOL)okFlag
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if (! okFlag) return filename;
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// User has clicked save, and no overwrite confirmation should occur.
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// To get the latter, we need to change the name we return (hence the prefix):
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return [@ UNLIKELYPREFIX stringByAppendingString:filename];
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static NSPopUpButton *createPopupAccessory(NSSavePanel *panel, const char *filter, const char *title, int rank)
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NSPopUpButton *popup;
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NSRect rectview = NSMakeRect(5, 5, 350, 30 );
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NSView *view = [[[NSView alloc] initWithFrame:rectview] autorelease];
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NSRect rectbox = NSMakeRect(0, 3, 50, 1 );
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NSBox *box = [[[NSBox alloc] initWithFrame:rectbox] autorelease];
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NSRect rectpop = NSMakeRect(60, 0, 250, 30 );
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popup = [[[NSPopUpButton alloc ] initWithFrame:rectpop pullsDown:NO] autorelease];
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[view addSubview:box];
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[view addSubview:popup];
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[box setBorderType:NSNoBorder];
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NSString *nstitle = [[NSString alloc] initWithUTF8String:title];
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[box setTitle:nstitle];
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NSFont *font = [NSFont controlContentFontOfSize:NSRegularControlSize];
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[box setTitleFont:font];
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CFStringRef tab = CFSTR("\n");
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tmp_cfs = CFStringCreateWithCString(NULL, filter, kCFStringEncodingASCII);
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CFArrayRef array = CFStringCreateArrayBySeparatingStrings(NULL, tmp_cfs, tab);
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[popup addItemsWithTitles:(NSArray*)array];
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NSMenuItem *item = [popup itemWithTitle:@""];
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if (item) [popup removeItemWithTitle:@""];
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[popup selectItemAtIndex:rank];
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[panel setAccessoryView:view];
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// Internal use only.
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// Assumes '_opts' has been initialized.
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// 0 - user picked a file
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// 1 - user cancelled
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// -1 - failed; errmsg() has reason
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int Fl_Native_File_Chooser::post() {
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// INITIALIZE BROWSER
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if ( _filt_total == 0 ) { // Make sure they match
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_filt_value = 0; // TBD: move to someplace more logical?
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NSAutoreleasePool *localPool;
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localPool = [[NSAutoreleasePool alloc] init];
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NSString *nstitle = [NSString stringWithUTF8String: (_title ? _title : "No Title")];
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[(NSSavePanel*)_panel setTitle:nstitle];
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case BROWSE_MULTI_FILE:
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[(NSOpenPanel*)_panel setAllowsMultipleSelection:YES];
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case BROWSE_MULTI_DIRECTORY:
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[(NSOpenPanel*)_panel setAllowsMultipleSelection:YES];
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case BROWSE_DIRECTORY:
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[(NSOpenPanel*)_panel setCanChooseDirectories:YES];
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case BROWSE_SAVE_DIRECTORY:
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[(NSSavePanel*)_panel setCanCreateDirectories:YES];
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if ( [(NSSavePanel*)_panel isKindOfClass:[NSOpenPanel class]] ) {
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NSPopUpButton *popup = nil;
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char *p; p = _filter;
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char *q; q = new char[strlen(p) + 1];
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do { // copy to t what is in _filter removing what is between \t and \n, if any
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if (!r) r = p + strlen(p) - 1;
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if (s && s < r) { memcpy(q, p, s - p); q += s - p; *(q++) = '\n'; }
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else { memcpy(q, p, r - p + 1); q += r - p + 1; }
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popup = createPopupAccessory((NSSavePanel*)_panel, t, "Enable:", 0);
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[[popup menu] addItem:[NSMenuItem separatorItem]];
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[popup addItemWithTitle:@"All Documents"];
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[popup setAction:@selector(validateVisibleColumns)];
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[popup setTarget:(NSObject*)_panel];
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static FLopenDelegate *openDelegate = nil;
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if (openDelegate == nil) {
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// not to be ever freed
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openDelegate = [[FLopenDelegate alloc] init];
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[openDelegate setPopup:popup filter_pattern:_filt_patt];
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[(NSOpenPanel*)_panel setDelegate:openDelegate];
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NSString *fname = nil;
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NSString *preset = nil;
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preset = [[NSString alloc] initWithUTF8String:_preset_file];
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if (strchr(_preset_file, '/') != NULL)
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dir = [[NSString alloc] initWithString:[preset stringByDeletingLastPathComponent]];
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fname = [preset lastPathComponent];
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if (_directory && !dir) dir = [[NSString alloc] initWithUTF8String:_directory];
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retval = [(NSOpenPanel*)_panel runModalForDirectory:dir file:fname types:nil];
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_filt_value = [popup indexOfSelectedItem];
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if ( retval == NSOKButton ) {
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NSArray *array = [(NSOpenPanel*)_panel filenames];
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_tpathnames = [array count];
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_pathnames = new char*[_tpathnames];
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for(int i = 0; i < _tpathnames; i++) {
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_pathnames[i] = strnew([(NSString*)[array objectAtIndex:i] fileSystemRepresentation]);
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NSString *fname = nil;
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NSString *preset = nil;
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NSPopUpButton *popup = nil;
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if ( !(_options & SAVEAS_CONFIRM) ) {
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static FLsaveDelegate *saveDelegate = nil;
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if (saveDelegate == nil)saveDelegate = [[FLsaveDelegate alloc] init]; // not to be ever freed
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[(NSSavePanel*)_panel setDelegate:saveDelegate];
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preset = [[NSString alloc] initWithUTF8String:_preset_file];
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if (strchr(_preset_file, '/') != NULL) {
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dir = [[NSString alloc] initWithString:[preset stringByDeletingLastPathComponent]];
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fname = [preset lastPathComponent];
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if (_directory && !dir) dir = [[NSString alloc] initWithUTF8String:_directory];
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popup = createPopupAccessory((NSSavePanel*)_panel, _filter, "Format:", _filt_value);
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retval = [(NSSavePanel*)_panel runModalForDirectory:dir file:fname];
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_filt_value = [popup indexOfSelectedItem];
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if ( retval == NSOKButton ) get_saveas_basename();
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return (retval == NSOKButton ? 0 : 1);
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#endif /*!FL_DOXYGEN*/
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// End of "$Id: Fl_Native_File_Chooser_MAC.cxx 7354 2010-03-29 11:07:29Z matt $".
added
removed
plugins/zynaddsubfx/fltk/src/Fl_Native_File_Chooser_MAC.cxx
