Vala: hello.vala

vala/hello/hello.vala

@@ -0,0 +1,5 @@
+int main ()
+{
+  print ("Hello World\n");
+  return 0;
+}

vala/hello/hello_gtk.vala

@@ -0,0 +1,20 @@
+using Gtk;
+
+int main (string[] args) {
+    Gtk.init (ref args);
+
+    var window = new Window ();
+    window.title = "Hello, World!";
+    window.border_width = 10;
+    window.window_position = WindowPosition.CENTER;
+    window.set_default_size (350, 70);
+    window.destroy.connect (Gtk.main_quit);
+
+    var label = new Label ("Hello, World!");
+
+    window.add (label);
+    window.show_all();
+
+    Gtk.main();
+    return 0;
+}

vala/hello/hello_oop.vala

@@ -0,0 +1,16 @@
+using GLib;
+
+class Sample : Object
+{
+         void run ()
+         {
+                 stdout.printf ("Hello World\n");
+         }
+
+         static int main (string[] args)
+         {
+                 var sample = new Sample ();
+                 sample.run ();
+                 return 0;
+         }
+ }

vala/hello/textviewer.vala

@@ -0,0 +1,68 @@
+using Gtk;
+
+public class TextFileViewer : Window
+{
+  private TextView text_view;
+
+  public TextFileViewer() 
+  {
+    this.title = "Просмотр текстового файла";
+    //this.position = WindowPosition.CENTER;
+    this.set_default_size( 500, 400 );
+
+    var toolbar = new Toolbar();
+    var open_button = new ToolButton.from_stock( STOCK_OPEN );
+    toolbar.add( open_button );
+    open_button.clicked.connect( on_open_clicked );
+
+    this.text_view = new TextView();
+    this.text_view.editable = false;
+    this.text_view.cursor_visible = false;
+
+    var scroll = new ScrolledWindow( null, null );
+    scroll.set_policy( PolicyType.AUTOMATIC, PolicyType.AUTOMATIC );
+    scroll.add( this.text_view );
+
+    var vbox = new VBox( false, 0 );
+    vbox.pack_start( toolbar, false, true, 0 );
+    vbox.pack_start( scroll, true, true, 0 );
+    this.add( vbox );
+  }
+
+  private void on_open_clicked() 
+  {
+    var file_chooser = new FileChooserDialog( "Открыть файл", this,
+                             FileChooserAction.OPEN,
+                             STOCK_CANCEL, ResponseType.CANCEL,
+                             STOCK_OPEN, ResponseType.ACCEPT, null );
+    if( file_chooser.run() == ResponseType.ACCEPT ) 
+    {
+      open_file( file_chooser.get_filename() );
+    }
+    file_chooser.destroy();
+  }
+
+  private void open_file( string filename ) 
+  {
+    try 
+    {
+      string text;
+      size_t size;
+      FileUtils.get_contents( filename, out text, out size );
+      this.text_view.buffer.set_text( text, (int) size );
+    } catch( Error e ) 
+      {
+        stderr.printf( "Ошибка: %s\n", e.message );
+      }
+  }
+
+  public static int main( string[] args ) 
+  {
+    Gtk.init( ref args );
+    var window = new TextFileViewer();
+    window.destroy.connect( Gtk.main_quit );
+    window.show_all();
+    Gtk.main();
+    return 0;
+  }
+}