Add FileChooserDialog to samples app

This shows the original issue on macOS/arm64 (if the rest of the PR is
not applied)

```
GLib.GException: Invalid byte sequence in conversion input
   at GLib.Marshaller.FilenamePtrToString(IntPtr ptr) in /Users/poupou/git/external/GtkSharp/Source/Libs/GLibSharp/Marshaller.cs:line 62
   at GLib.Marshaller.FilenamePtrToStringGFree(IntPtr ptr) in /Users/poupou/git/external/GtkSharp/Source/Libs/GLibSharp/Marshaller.cs:line 68
   at Gtk.FileChooserDialog.get_Filename() in /Users/poupou/git/external/GtkSharp/Source/Libs/GtkSharp/Generated/Gtk/FileChooserDialog.cs:line 222
   at Samples.FileChooserDialogDemo.OnPressed() in /Users/poupou/git/external/GtkSharp/Source/Samples/Sections/Dialogs/FileChooserDialogSection.cs:line 28
   at Gtk.Button.Pressed_cb(IntPtr inst) in /Users/poupou/git/external/GtkSharp/Source/Libs/GtkSharp/Generated/Gtk/Button.cs:line 388
   at GLib.ExceptionManager.RaiseUnhandledException(Exception e, Boolean is_terminal) in /Users/poupou/git/external/GtkSharp/Source/Libs/GLibSharp/ExceptionManager.cs:line 58
   at Gtk.Button.Pressed_cb(IntPtr inst) in /Users/poupou/git/external/GtkSharp/Source/Libs/GtkSharp/Generated/Gtk/Button.cs:line 388
   at Gtk.Application.Run() in /Users/poupou/git/external/GtkSharp/Source/Libs/GtkSharp/Application.cs:line 115
   at Samples.Program.Main(String[] args) in /Users/poupou/git/external/GtkSharp/Source/Samples/Program.cs:line 44
```
This commit is contained in:
Sebastien Pouliot 2022-04-24 11:18:36 -04:00
parent 7391aac88d
commit fd3eb0c839

View file

@ -0,0 +1,32 @@
using Gtk;
namespace Samples
{
[Section(ContentType = typeof(FileChooserDialog), Category = Category.Dialogs)]
class FileChooserDialogSection : ListSection
{
public FileChooserDialogSection ()
{
AddItem ($"Press button to open {nameof(FileChooserDialog)} :", new FileChooserDialogDemo ("Press me"));
}
}
class FileChooserDialogDemo : Button
{
public FileChooserDialogDemo (string text) : base (text) { }
protected override void OnPressed ()
{
var fcd = new FileChooserDialog ("Open File", null, FileChooserAction.Open);
fcd.AddButton (Stock.Cancel, ResponseType.Cancel);
fcd.AddButton (Stock.Open, ResponseType.Ok);
fcd.DefaultResponse = ResponseType.Ok;
fcd.SelectMultiple = false;
ResponseType response = (ResponseType) fcd.Run ();
if (response == ResponseType.Ok)
ApplicationOutput.WriteLine (fcd.Filename);
fcd.Destroy ();
}
}
}