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