Gtk.FileChooserDialog¶
- Subclasses:
None
Methods¶
Virtual Methods¶
Properties¶
Style Properties¶
- Inherited:
Signals¶
Fields¶
- Inherited:
Gtk.Dialog (2), Gtk.Window (5), Gtk.Container (4), Gtk.Widget (69), GObject.Object (1), Gtk.FileChooser (5)
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Description |
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parent_instance |
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Class Details¶
- class Gtk.FileChooserDialog(*args, **kwargs)¶
- Bases:
- Abstract:
No
- Structure:
Gtk.FileChooserDialog
is a dialog box suitable for use with “File/Open” or “File/Save as” commands. This widget works by putting aGtk.FileChooserWidget
inside aGtk.Dialog
. It exposes theGtk.FileChooser
interface, so you can use all of theGtk.FileChooser
functions on the file chooser dialog as well as those forGtk.Dialog
.Note that
Gtk.FileChooserDialog
does not have any methods of its own. Instead, you should use the functions that work on aGtk.FileChooser
.If you want to integrate well with the platform you should use the
Gtk.FileChooserNative
API, which will use a platform-specific dialog if available and fall back toGtk.FileChooserDialog
otherwise.- Typical usage
In the simplest of cases, you can the following code to use
Gtk.FileChooserDialog
to select a file for opening:GtkWidget *dialog; GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_OPEN; gint res; dialog = gtk_file_chooser_dialog_new ("Open File", parent_window, action, _("_Cancel"), GTK_RESPONSE_CANCEL, _("_Open"), GTK_RESPONSE_ACCEPT, NULL); res = gtk_dialog_run (GTK_DIALOG (dialog)); if (res == GTK_RESPONSE_ACCEPT) { char *filename; GtkFileChooser *chooser = GTK_FILE_CHOOSER (dialog); filename = gtk_file_chooser_get_filename (chooser); open_file (filename); g_free (filename); } gtk_widget_destroy (dialog);
To use a dialog for saving, you can use this:
GtkWidget *dialog; GtkFileChooser *chooser; GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_SAVE; gint res; dialog = gtk_file_chooser_dialog_new ("Save File", parent_window, action, _("_Cancel"), GTK_RESPONSE_CANCEL, _("_Save"), GTK_RESPONSE_ACCEPT, NULL); chooser = GTK_FILE_CHOOSER (dialog); gtk_file_chooser_set_do_overwrite_confirmation (chooser, TRUE); if (user_edited_a_new_document) gtk_file_chooser_set_current_name (chooser, _("Untitled document")); else gtk_file_chooser_set_filename (chooser, existing_filename); res = gtk_dialog_run (GTK_DIALOG (dialog)); if (res == GTK_RESPONSE_ACCEPT) { char *filename; filename = gtk_file_chooser_get_filename (chooser); save_to_file (filename); g_free (filename); } gtk_widget_destroy (dialog);
- Setting up a file chooser dialog
There are various cases in which you may need to use a
Gtk.FileChooserDialog
:To select a file for opening. Use
Gtk.FileChooserAction.OPEN
.To save a file for the first time. Use
Gtk.FileChooserAction.SAVE
, and suggest a name such as “Untitled” withGtk.FileChooser.set_current_name
().To save a file under a different name. Use
Gtk.FileChooserAction.SAVE
, and set the existing filename withGtk.FileChooser.set_filename
().To choose a folder instead of a file. Use
Gtk.FileChooserAction.SELECT_FOLDER
.
Note that old versions of the file chooser’s documentation suggested using
Gtk.FileChooser.set_current_folder
() in various situations, with the intention of letting the application suggest a reasonable default folder. This is no longer considered to be a good policy, as now the file chooser is able to make good suggestions on its own. In general, you should only cause the file chooser to show a specific folder when it is appropriate to useGtk.FileChooser.set_filename
(), i.e. when you are doing a Save As command and you already have a file saved somewhere.- Response Codes
Gtk.FileChooserDialog
inherits fromGtk.Dialog
, so buttons that go in its action area have response codes such asGtk.ResponseType.ACCEPT
andGtk.ResponseType.CANCEL
. For example, you could call gtk_file_chooser_dialog_new() as follows:GtkWidget *dialog; GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_OPEN; dialog = gtk_file_chooser_dialog_new ("Open File", parent_window, action, _("_Cancel"), GTK_RESPONSE_CANCEL, _("_Open"), GTK_RESPONSE_ACCEPT, NULL);
This will create buttons for “Cancel” and “Open” that use stock response identifiers from
Gtk.ResponseType
. For most dialog boxes you can use your own custom response codes rather than the ones inGtk.ResponseType
, butGtk.FileChooserDialog
assumes that its “accept”-type action, e.g. an “Open” or “Save” button, will have one of the following response codes:This is because
Gtk.FileChooserDialog
must intercept responses and switch to folders if appropriate, rather than letting the dialog terminate — the implementation uses these known response codes to know which responses can be blocked if appropriate.To summarize, make sure you use a stock response code when you use
Gtk.FileChooserDialog
to ensure proper operation.