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从Gtk.ComboBox获取元素VALA

2014-05-01 43 views
1

我没有这个代码在林间空地：从Gtk.ComboBox获取元素VALA

<?xml version="1.0" encoding="UTF-8"?> 
<!-- Generated with glade 3.16.0 on Wed Apr 30 19:25:13 2014 --> 
<interface> 
<!-- interface-requires gtk+ 3.10 --> 
    <object class="GtkListStore" id="dinero"> 
    <columns> 
    <!-- column-name extraer --> 
    <column type="gint"/> 
    </columns> 
<data> 
    <row> 
    <col id="0">20</col> 
    </row> 
    <row> 
    <col id="0">50</col> 
    </row> 
    <row> 
    <col id="0">100</col> 
    </row> 
    <row> 
    <col id="0">200</col> 
    </row> 
    <row> 
    <col id="0">300</col> 
    </row> 
    <row> 
    <col id="0">500</col> 
    </row> 
</data> 
</object> 
<object class="GtkListStore" id="tipo_cuenta"> 
<columns> 
    <!-- column-name cuenta --> 
    <column type="gchararray"/> 
</columns> 
<data> 
    <row> 
    <col id="0" translatable="yes">Cuenta Corriente</col> 
    </row> 
    <row> 
    <col id="0" translatable="yes">Cuenta de Ahorro</col> 
    </row> 
</data> 
</object> 
<object class="GtkWindow" id="window1"> 
<property name="can_focus">False</property> 
<child> 
    <object class="GtkBox" id="box1"> 
    <property name="visible">True</property> 
    <property name="can_focus">False</property> 
    <property name="halign">center</property> 
    <property name="valign">start</property> 
    <property name="hexpand">True</property> 
    <property name="vexpand">True</property> 
    <property name="orientation">vertical</property> 
    <property name="homogeneous">True</property> 
    <child> 
     <object class="GtkBox" id="box2"> 
     <property name="visible">True</property> 
     <property name="can_focus">False</property> 
     <child> 
      <object class="GtkBox" id="box3"> 
      <property name="visible">True</property> 
      <property name="can_focus">False</property> 
      <property name="orientation">vertical</property> 
      <child> 
       <object class="GtkLabel" id="label1"> 
       <property name="visible">True</property> 
       <property name="can_focus">False</property> 
       <property name="xpad">80</property> 
       <property name="label" translatable="yes">Extraer</property> 
       </object> 
       <packing> 
       <property name="expand">False</property> 
       <property name="fill">True</property> 
       <property name="position">0</property> 
       </packing> 
      </child> 
      <child> 
       <object class="GtkComboBox" id="comboextraer"> 
       <property name="visible">True</property> 
       <property name="can_focus">False</property> 
       <property name="halign">center</property> 
       <property name="valign">center</property> 
       <property name="model">dinero</property> 
       <property name="wrap_width">3</property> 
       <property name="row_span_column">3</property> 
       <property name="column_span_column">3</property> 
       <property name="active">0</property> 
       <property name="button_sensitivity">on</property> 
       <property name="id_column">0</property> 
       <property name="active_id">extraer</property> 
       <child> 
        <object class="GtkCellRendererText" id="lista_extraer"/> 
        <attributes> 
        <attribute name="visible">0</attribute> 
        <attribute name="text">0</attribute> 
        <attribute name="wrap-width">2</attribute> 
        </attributes> 
       </child> 
       </object> 
       <packing> 
       <property name="expand">True</property> 
       <property name="fill">True</property> 
       <property name="position">1</property> 
       </packing> 
      </child> 
      </object> 
      <packing> 
      <property name="expand">False</property> 
      <property name="fill">True</property> 
      <property name="position">0</property> 
      </packing> 
     </child> 
     <child> 
      <object class="GtkBox" id="box4"> 
      <property name="visible">True</property> 
      <property name="can_focus">False</property> 
      <property name="orientation">vertical</property> 
      <child> 
       <object class="GtkLabel" id="label2"> 
       <property name="visible">True</property> 
       <property name="can_focus">False</property> 
       <property name="xpad">76</property> 
       <property name="label" translatable="yes">Tipo de cuenta</property> 
       <attributes> 
        <attribute name="font-desc" value="&lt;Introducir valor&gt; 10"/> 
        <attribute name="scale" value="1"/> 
       </attributes> 
       </object> 
       <packing> 
       <property name="expand">False</property> 
       <property name="fill">True</property> 
       <property name="position">0</property> 
       </packing> 
      </child> 
      <child> 
       <object class="GtkComboBox" id="comboextraer1"> 
       <property name="visible">True</property> 
       <property name="can_focus">False</property> 
       <property name="halign">center</property> 
       <property name="valign">center</property> 
       <property name="model">tipo_cuenta</property> 
       <property name="wrap_width">3</property> 
       <property name="row_span_column">3</property> 
       <property name="column_span_column">3</property> 
       <property name="active">0</property> 
       <property name="button_sensitivity">on</property> 
       <property name="id_column">0</property> 
       <property name="active_id">extraer</property> 
       <child> 
        <object class="GtkCellRendererText" id="lista_extraer1"/> 
        <attributes> 
        <attribute name="visible">0</attribute> 
        <attribute name="text">0</attribute> 
        <attribute name="wrap-width">2</attribute> 
        </attributes> 
       </child> 
       </object> 
       <packing> 
       <property name="expand">True</property> 
       <property name="fill">True</property> 
       <property name="position">1</property> 
       </packing> 
      </child> 
      </object> 
      <packing> 
      <property name="expand">False</property> 
      <property name="fill">True</property> 
      <property name="position">1</property> 
      </packing> 
     </child> 
     </object> 
     <packing> 
     <property name="expand">True</property> 
     <property name="fill">False</property> 
     <property name="position">0</property> 
     </packing> 
    </child> 
    <child> 
     <object class="GtkBox" id="box5"> 
     <property name="visible">True</property> 
     <property name="can_focus">False</property> 
     <child> 
      <object class="GtkButton" id="boton"> 
      <property name="label" translatable="yes">Sacar dinero</property> 
      <property name="visible">True</property> 
      <property name="can_focus">True</property> 
      <property name="receives_default">True</property> 
      <property name="margin_left">3</property> 
      <property name="margin_right">6</property> 
      <property name="margin_top">9</property> 
      <property name="margin_bottom">6</property> 
      <property name="relief">half</property> 
      <property name="image_position">bottom</property> 
      </object> 
      <packing> 
      <property name="expand">False</property> 
      <property name="fill">True</property> 
      <property name="position">0</property> 
      </packing> 
     </child> 
     <child> 
      <object class="GtkLabel" id="verificar"> 
      <property name="visible">True</property> 
      <property name="can_focus">False</property> 
      <property name="margin_left">33</property> 
      <property name="margin_right">40</property> 
      <property name="label" translatable="yes">Verificar</property> 
      <attributes> 
       <attribute name="scale" value="1"/> 
      </attributes> 
      </object> 
      <packing> 
      <property name="expand">False</property> 
      <property name="fill">True</property> 
      <property name="position">1</property> 
      </packing> 
     </child> 
     <child> 
      <object class="GtkLabel" id="Deposito"> 
      <property name="visible">True</property> 
      <property name="can_focus">False</property> 
      <property name="margin_left">74</property> 
      <property name="margin_right">64</property> 
      <property name="label" translatable="yes">Deposito</property> 
      </object> 
      <packing> 
      <property name="expand">False</property> 
      <property name="fill">True</property> 
      <property name="position">2</property> 
      </packing> 
     </child> 
     </object> 
     <packing> 
     <property name="expand">False</property> 
     <property name="fill">True</property> 
     <property name="position">1</property> 
     </packing> 
    </child> 
    </object> 
</child> 
</object>

而且我做这个代码在瓦拉语言：

using Gtk; 

class Cajero : GLib.Object { 

public Cajero(){ 
    int deposito = 3000; 
    var builder = new Builder(); 
    builder.add_from_file("cajero.ui"); 
    builder.connect_signals(null); 
    var ventana = builder.get_object("window1") as Window; 
    ventana.title = "Cajero Automático"; 
    ventana.destroy.connect(Gtk.main_quit); 
    var contenedor = builder.get_object("box1") as Box; 
    var caja1 = builder.get_object("box2") as Box; 
    var caja2 = builder.get_object("box3") as Box; 
    var label1 = builder.get_object("label1") as Label; 
    var combo_extraer = builder.get_object("comboextraer") as ComboBox; 
    var lista_extraer = builder.get_object("lista_extraer") as CellRendererText; 
    var caja3 = builder.get_object("box4") as Box; 
    var label2 = builder.get_object("label2") as Label; 
    var combo_cuenta = builder.get_object("comboextraer1") as ComboBox; 
    var lista_cuenta = builder.get_object("lista_extraer1") as CellRendererText; 
    var caja4 = builder.get_object("box5") as Box; 
    var boton = builder.get_object("boton") as Button; 
    var label3 = builder.get_object("verificar") as Label; 
    var label4 = builder.get_object("Deposito") as Label; 
    boton.clicked.connect(() => { 
     int extraer = combo_extraer.get_active(); 
     int cuenta = combo_cuenta.get_active(); 
     if(cuenta == 1){ 
      if(extraer > 200){ 
       label3.set_label("Incorrecto"); 
      }else{ 
       label3.set_label("Correcto"); 
       deposito = deposito - extraer; 
       if(deposito < 0){ 
        ventana.title = "Fuera de servicio"; 
        deposito = deposito + extraer; 
        label4.set_label(deposito.to_string()); 
       }else{ 
        label4.set_label(deposito.to_string()); 
       } 
      } 
     }else{ 
      if(extraer > 400){ 
       label3.set_label("Incorrecto"); 
      }else{ 
       label3.set_label("Correcto"); 
       deposito = deposito - extraer; 
       if(deposito < 0){ 
        ventana.title = "Fuera de servicio"; 
        deposito = deposito + extraer; 
        label4.set_label(deposito.to_string()); 
       }else{ 
        label4.set_label(deposito.to_string()); 
       } 
      } 
     } 
    }); 
    ventana.show_all(); 
} 

public static int main(string[] args) { 
    Gtk.init(ref args); 
    Cajero cajero = new Cajero(); 
    Gtk.main(); 
    return 0; 
} 
}

我不知道我如何获得combo_extraer的元素值。我只得到这个瓦拉代码的有源元件的位置，但我不能得到它的价值。

来源

2014-05-01 Dominuskernel

回答

1

你必须得到来自用于由CombobBox的ListStore值。

基本上你叫get_active_iter在ComboBox得到一个迭代活动条目，然后调用get_value与迭代器，你想从列表中储存检索列。

你的列表存储器被称为dinero，你必须从制造商得到它，因为你已经对其他元件做。

的example in valadoc展示它是如何在做一般：

public class Application : Gtk.Window { 
    public Application() { 
     // Prepare Gtk.Window: 
     this.title = "My Gtk.ComboBox"; 
     this.window_position = Gtk.WindowPosition.CENTER; 
     this.destroy.connect (Gtk.main_quit); 

     // Create & fill a ListStore: 
     Gtk.ListStore list_store = new Gtk.ListStore (2, typeof (string), typeof (int)); 
     Gtk.TreeIter iter; 

     list_store.append (out iter); 
     list_store.set (iter, 0, "Burgenland", 1, 13); 
     list_store.append (out iter); 
     list_store.set (iter, 0, "Carinthia", 1, 17); 

     // The Box: 
     Gtk.ComboBox box = new Gtk.ComboBox.with_model (list_store); 
     this.add (box); 

     Gtk.CellRendererText renderer = new Gtk.CellRendererText(); 
     box.pack_start (renderer, true); 
     box.add_attribute (renderer, "text", 0); 
     box.active = 0; 

     renderer = new Gtk.CellRendererText(); 
     box.pack_start (renderer, true); 
     box.add_attribute (renderer, "text", 1); 
     box.active = 0; 

     box.changed.connect (() => { 
      Value val1; 
      Value val2; 

      box.get_active_iter (out iter); 
      list_store.get_value (iter, 0, out val1); 
      list_store.get_value (iter, 1, out val2); 

      stdout.printf ("Selection: %s, %d\n", (string) val1, (int) val2); 
     }); 
    } 

    public static int main (string[] args) { 
     Gtk.init (ref args); 

     Application app = new Application(); 
     app.show_all(); 
     Gtk.main(); 
     return 0; 
    } 
}

来源

2014-05-02 09:41:57

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