如何连接GtkModelButton

Question

Helo，

我有以下.ui文件：

<child>
<object class="GtkModelButton" id="button_neworder">
<property name="can_focus">True</property>
<property name="text" translatable="yes">Neuer Auftrag</property>
<property name="action-name">?</property>
<property name="visible">True</property>
</object>
</child>

以及以下应用程序窗口：

public class Window : Gtk.ApplicationWindow {
[GtkChild]
private unowned Gtk.ListBox listbox_jobs;
private unowned Gtk.Button button_neworder;
public Window (Gtk.Application app) {
Object (application: app, title: "Auftragsverwaltung");
this.button_neworder.clicked.connect(this.method);
}
public void method() {
}
}

如何使用GtkModelButton创建点击信号？

代码

this.button_neworder.clicked.connect(this.method);

不起作用。

Answer 1

您需要使用<signal/>:将信号添加到.ui文件中

...
<child>
<object class="GtkModelButton" id="button_neworder">
<property name="can_focus">True</property>
<property name="text" translatable="yes">Neuer Auftrag</property>
<property name="action-name">?</property>
<property name="visible">True</property>
<signal name="clicked" handler="button_neworder_clicked" />
</object>
</child>
...

并将该方法识别为具有[GtkCallback]:的回调

[GtkTemplate(ui = "/template/window.ui")]
public class Window : Gtk.ApplicationWindow {
[GtkChild]
private unowned Gtk.ListBox listbox_jobs;
private unowned Gtk.Button button_neworder;
public Window (Gtk.Application app) {
Object (application: app, title: "Auftragsverwaltung");
this.button_neworder.clicked.connect(this.method);
}
[GtkCallback]
public void button_neworder_clicked(Gtk.ModelButton button) {
}
}