[Vala] [VALA] Problem with textview (it resize automatically...)

[raum no-log org]

Hi,

I've got a problem with Gtk 3 / Glade... When I add too much lines in my
textview, it gets bigger and recovers the other widgets of my window !


Below, you could see my code... Where am I wrong ? Any advice ??

thanks

Regards

------------------------------ TEST4.VALA ---------------------------

using Gtk;

class TestApp  : Gtk.ApplicationWindow {
    const string UI = "test.ui";
    public Window main_window;
        public TextView tview;
        public TextBuffer buffer;

    public TestApp() {
        Builder builder = new Builder();
        builder.add_from_file(UI);
        main_window = builder.get_object("window1") as Window;
        main_window.destroy.connect(Gtk.main_quit);
        builder.connect_signals(this);

        tview = builder.get_object("textview1") as Gtk.TextView;
                buffer = tview.get_buffer();
                for (int i = 0; i < 25; i++)
                        buffer.text += "test " + i.to_string() + "\n";
    }

        [CCode (cname = "G_MODULE_EXPORT on_start")]
        public void on_start(Button source){
                var messagedialog = new Gtk.MessageDialog (main_window,
                            Gtk.DialogFlags.MODAL,
                            Gtk.MessageType.WARNING,
                            Gtk.ButtonsType.OK_CANCEL,
                            "This action will cause the universe to stop
existing.");

                if (messagedialog.run() == ResponseType.OK) {
                        stdout.printf ("tata\r\n");
                        messagedialog.destroy();
                }
        }

}

void main(string[] args) {
    Gtk.init (ref args);
        TestApp h = new TestApp();
    h.main_window.show_all();
    Gtk.main();
}

---------------------------- TEST.UI ----------------------------
<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <!-- interface-requires gtk+ 3.0 -->
  <object class="GtkWindow" id="window1">
    <property name="width_request">600</property>
    <property name="height_request">400</property>
    <property name="can_focus">False</property>
    <property name="resizable">False</property>
    <child>
      <object class="GtkLayout" id="layout1">
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <child>
          <object class="GtkButton" id="start">
            <property name="label" translatable="yes">button</property>
            <property name="width_request">119</property>
            <property name="height_request">32</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">True</property>
            <property name="image_position">top</property>
            <signal name="clicked" handler="on_start" swapped="no"/>
          </object>
          <packing>
            <property name="x">15</property>
            <property name="y">360</property>
          </packing>
        </child>
        <child>
          <object class="GtkTextView" id="textview1">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
                        <property name="resizable">False</property>
                        <property name="width_request">450</property>
                        <property name="height_request">300</property>

          </object>
          <packing>
            <property name="x">15</property>
            <property name="y">16</property>
          </packing>
        </child>
      </object>
    </child>
  </object>
</interface>