libs/gtkutil/filechooser.cpp

   1 /*
   2    Copyright (C) 2001-2006, William Joseph.
   3    All Rights Reserved.
   4
   5    This file is part of GtkRadiant.
   6
   7    GtkRadiant is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    GtkRadiant is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GtkRadiant; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22 #include "filechooser.h"
  23
  24 #include "ifiletypes.h"
  25
  26 #include <list>
  27 #include <vector>
  28 #include <gtk/gtk.h>
  29 #include <uilib/uilib.h>
  30
  31 #include "string/string.h"
  32 #include "stream/stringstream.h"
  33 #include "container/array.h"
  34 #include "os/path.h"
  35 #include "os/file.h"
  36
  37 #include "messagebox.h"
  38
  39
  40 struct filetype_pair_t
  41 {
  42         filetype_pair_t()
  43                 : m_moduleName( "" ){
  44         }
  45         filetype_pair_t( const char* moduleName, filetype_t type )
  46                 : m_moduleName( moduleName ), m_type( type ){
  47         }
  48         const char* m_moduleName;
  49         filetype_t m_type;
  50 };
  51
  52 class FileTypeList : public IFileTypeList
  53 {
  54 struct filetype_copy_t
  55 {
  56         filetype_copy_t( const filetype_pair_t& other )
  57                 : m_moduleName( other.m_moduleName ), m_name( other.m_type.name ), m_pattern( other.m_type.pattern ){
  58         }
  59         CopiedString m_moduleName;
  60         CopiedString m_name;
  61         CopiedString m_pattern;
  62 };
  63
  64 typedef std::list<filetype_copy_t> Types;
  65 Types m_types;
  66 public:
  67
  68 typedef Types::const_iterator const_iterator;
  69 const_iterator begin() const {
  70         return m_types.begin();
  71 }
  72 const_iterator end() const {
  73         return m_types.end();
  74 }
  75
  76 std::size_t size() const {
  77         return m_types.size();
  78 }
  79
  80 void addType( const char* moduleName, filetype_t type ){
  81         m_types.push_back( filetype_pair_t( moduleName, type ) );
  82 }
  83 };
  84
  85
  86 class GTKMasks
  87 {
  88 const FileTypeList& m_types;
  89 public:
  90 std::vector<CopiedString> m_filters;
  91 std::vector<CopiedString> m_masks;
  92
  93 GTKMasks( const FileTypeList& types ) : m_types( types ){
  94         m_masks.reserve( m_types.size() );
  95         for ( FileTypeList::const_iterator i = m_types.begin(); i != m_types.end(); ++i )
  96         {
  97                 std::size_t len = strlen( ( *i ).m_name.c_str() ) + strlen( ( *i ).m_pattern.c_str() ) + 3;
  98                 StringOutputStream buffer( len + 1 ); // length + null char
  99
 100                 buffer << ( *i ).m_name.c_str() << " <" << ( *i ).m_pattern.c_str() << ">";
 101
 102                 m_masks.push_back( buffer.c_str() );
 103         }
 104
 105         m_filters.reserve( m_types.size() );
 106         for ( FileTypeList::const_iterator i = m_types.begin(); i != m_types.end(); ++i )
 107         {
 108                 m_filters.push_back( ( *i ).m_pattern );
 109         }
 110 }
 111
 112 filetype_pair_t GetTypeForGTKMask( const char *mask ) const {
 113         std::vector<CopiedString>::const_iterator j = m_masks.begin();
 114         for ( FileTypeList::const_iterator i = m_types.begin(); i != m_types.end(); ++i, ++j )
 115         {
 116                 if ( string_equal( ( *j ).c_str(), mask ) ) {
 117                         return filetype_pair_t( ( *i ).m_moduleName.c_str(), filetype_t( ( *i ).m_name.c_str(), ( *i ).m_pattern.c_str() ) );
 118                 }
 119         }
 120         return filetype_pair_t();
 121 }
 122
 123 };
 124
 125 static char g_file_dialog_file[1024];
 126
 127 const char* file_dialog_show( GtkWidget* parent, bool open, const char* title, const char* path, const char* pattern, bool want_load, bool want_import, bool want_save ){
 128         filetype_t type;
 129
 130         if ( pattern == 0 ) {
 131                 pattern = "*";
 132         }
 133
 134         FileTypeList typelist;
 135         GlobalFiletypes().getTypeList( pattern, &typelist, want_load, want_import, want_save );
 136
 137         GTKMasks masks( typelist );
 138
 139         if ( title == 0 ) {
 140                 title = open ? "Open File" : "Save File";
 141         }
 142
 143         GtkWidget* dialog;
 144         if ( open ) {
 145                 dialog = gtk_file_chooser_dialog_new( title,
 146                                                                                           GTK_WINDOW( parent ),
 147                                                                                           GTK_FILE_CHOOSER_ACTION_OPEN,
 148                                                                                           GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 149                                                                                           GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 150                                                                                           NULL );
 151         }
 152         else
 153         {
 154                 dialog = gtk_file_chooser_dialog_new( title,
 155                                                                                           GTK_WINDOW( parent ),
 156                                                                                           GTK_FILE_CHOOSER_ACTION_SAVE,
 157                                                                                           GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 158                                                                                           GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
 159                                                                                           NULL );
 160                 gtk_file_chooser_set_current_name( GTK_FILE_CHOOSER( dialog ), "unnamed" );
 161         }
 162
 163         gtk_window_set_modal( GTK_WINDOW( dialog ), TRUE );
 164         gtk_window_set_position( GTK_WINDOW( dialog ), GTK_WIN_POS_CENTER_ON_PARENT );
 165
 166         // we expect an actual path below, if the path is 0 we might crash
 167         if ( path != 0 && !string_empty( path ) ) {
 168                 ASSERT_MESSAGE( path_is_absolute( path ), "file_dialog_show: path not absolute: " << makeQuoted( path ) );
 169
 170                 Array<char> new_path( strlen( path ) + 1 );
 171
 172                 // copy path, replacing dir separators as appropriate
 173                 Array<char>::iterator w = new_path.begin();
 174                 for ( const char* r = path; *r != '\0'; ++r )
 175                 {
 176                         *w++ = ( *r == '/' ) ? G_DIR_SEPARATOR : *r;
 177                 }
 178                 // remove separator from end of path if required
 179                 if ( *( w - 1 ) == G_DIR_SEPARATOR ) {
 180                         --w;
 181                 }
 182                 // terminate string
 183                 *w = '\0';
 184
 185                 gtk_file_chooser_set_current_folder( GTK_FILE_CHOOSER( dialog ), new_path.data() );
 186         }
 187
 188         // we should add all important paths as shortcut folder...
 189         // gtk_file_chooser_add_shortcut_folder(GTK_FILE_CHOOSER(dialog), "/tmp/", NULL);
 190
 191
 192         for ( std::size_t i = 0; i < masks.m_filters.size(); ++i )
 193         {
 194                 GtkFileFilter* filter = gtk_file_filter_new();
 195                 gtk_file_filter_add_pattern( filter, masks.m_filters[i].c_str() );
 196                 gtk_file_filter_set_name( filter, masks.m_masks[i].c_str() );
 197                 gtk_file_chooser_add_filter( GTK_FILE_CHOOSER( dialog ), filter );
 198         }
 199
 200         if ( gtk_dialog_run( GTK_DIALOG( dialog ) ) == GTK_RESPONSE_ACCEPT ) {
 201                 strcpy( g_file_dialog_file, gtk_file_chooser_get_filename( GTK_FILE_CHOOSER( dialog ) ) );
 202
 203                 if ( !string_equal( pattern, "*" ) ) {
 204                         GtkFileFilter* filter = gtk_file_chooser_get_filter( GTK_FILE_CHOOSER( dialog ) );
 205                         if ( filter != 0 ) { // no filter set? some file-chooser implementations may allow the user to set no filter, which we treat as 'all files'
 206                                 type = masks.GetTypeForGTKMask( gtk_file_filter_get_name( filter ) ).m_type;
 207                                 // last ext separator
 208                                 const char* extension = path_get_extension( g_file_dialog_file );
 209                                 // no extension
 210                                 if ( string_empty( extension ) ) {
 211                                         strcat( g_file_dialog_file, type.pattern + 1 );
 212                                 }
 213                                 else
 214                                 {
 215                                         strcpy( g_file_dialog_file + ( extension - g_file_dialog_file ), type.pattern + 2 );
 216                                 }
 217                         }
 218                 }
 219
 220                 // convert back to unix format
 221                 for ( char* w = g_file_dialog_file; *w != '\0'; w++ )
 222                 {
 223                         if ( *w == '\\' ) {
 224                                 *w = '/';
 225                         }
 226                 }
 227         }
 228         else
 229         {
 230                 g_file_dialog_file[0] = '\0';
 231         }
 232
 233         gtk_widget_destroy( dialog );
 234
 235         // don't return an empty filename
 236         if ( g_file_dialog_file[0] == '\0' ) {
 237                 return NULL;
 238         }
 239
 240         return g_file_dialog_file;
 241 }
 242
 243 char* dir_dialog( ui::Widget parent, const char* title, const char* path ){
 244         GtkWidget* dialog = gtk_file_chooser_dialog_new( title,
 245                                                                                                          GTK_WINDOW( parent ),
 246                                                                                                          GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER,
 247                                                                                                          GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 248                                                                                                          GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 249                                                                                                          NULL );
 250
 251         gtk_window_set_modal( GTK_WINDOW( dialog ), TRUE );
 252         gtk_window_set_position( GTK_WINDOW( dialog ), GTK_WIN_POS_CENTER_ON_PARENT );
 253
 254         if ( !string_empty( path ) ) {
 255                 gtk_file_chooser_set_current_folder( GTK_FILE_CHOOSER( dialog ), path );
 256         }
 257
 258         char* filename = 0;
 259         if ( gtk_dialog_run( GTK_DIALOG( dialog ) ) == GTK_RESPONSE_ACCEPT ) {
 260                 filename = gtk_file_chooser_get_filename( GTK_FILE_CHOOSER( dialog ) );
 261         }
 262
 263         gtk_widget_destroy( dialog );
 264
 265         return filename;
 266 }
 267
 268 const char* file_dialog( ui::Widget parent, bool open, const char* title, const char* path, const char* pattern, bool want_load, bool want_import, bool want_save ){
 269         for (;; )
 270         {
 271                 const char* file = file_dialog_show( parent, open, title, path, pattern, want_load, want_import, want_save );
 272
 273                 if ( open
 274                          || file == 0
 275                          || !file_exists( file )
 276                          || parent.alert("The file specified already exists.\nDo you want to replace it?", title, ui::alert_type::NOYES, ui::alert_icon::Question ) == ui::alert_response::YES ) {
 277                         return file;
 278                 }
 279         }
 280 }