Well I was working on simple application for starting/stopping and restarting my LAMP in mono (just to get knowing the GUI development with mono bit more), so to have less buttons I decided to have one button for starting and stopping the servers. In the GUI designer I added a start button with icon, the problem is that updating the button label is easy, but changing the image to Stock.MediaStop is a bit of a problem. So How to change the stock image in a button on click event (it doesn't meter on what kind of event it is actually). Here some code: The GUI XML for a button:
<widget class="Gtk.Button" id="button1">
<property name="MemberName" />
<property name="CanFocus">True</property>
<property name="Type">TextAndIcon</property>
<property name="Icon">stock:gtk-media-play Menu</property>
<property name="Label" translatable="yes">Start</property>
<property name="UseUnderline">True</property>
<signal name="Clicked" handler="OnMysqlServerStartStop" />
</widget>
And here how MediaDevelop made the Stock button with custom text:
// Container child hbox1.Gtk.Box+BoxChild
this.hbuttonbox1 = new Gtk.HButtonBox();
this.hbuttonbox1.Name = "hbuttonbox1";
// Container child hbuttonbox1.Gtk.ButtonBox+ButtonBoxChild
this.but开发者_如何转开发ton1 = new Gtk.Button();
this.button1.CanFocus = true;
this.button1.Name = "button1";
this.button1.UseUnderline = true;
// Container child button1.Gtk.Container+ContainerChild
Gtk.Alignment w2 = new Gtk.Alignment(0.5F, 0.5F, 0F, 0F);
// Container child GtkAlignment.Gtk.Container+ContainerChild
Gtk.HBox w3 = new Gtk.HBox();
w3.Spacing = 2;
// Container child GtkHBox.Gtk.Container+ContainerChild
Gtk.Image w4 = new Gtk.Image();
w4.Pixbuf = Stetic.IconLoader.LoadIcon(this, "gtk-media-play", Gtk.IconSize.Menu, 16);
w3.Add(w4);
// Container child GtkHBox.Gtk.Container+ContainerChild
Gtk.Label w6 = new Gtk.Label();
w6.LabelProp = Mono.Unix.Catalog.GetString("Start");
w6.UseUnderline = true;
w3.Add(w6);
w2.Add(w3);
this.button1.Add(w2);
this.hbuttonbox1.Add(this.button1);
I can see why you are having so much trouble here. I thought you could just set the image and text properties of the button, but it seems you can have a label showing or a image showing, but not both. The label overwrites the image. I think the image will show only if the theme settings request it to. The same applies to the label. You can have a combination of the both, only a label or only a image. All set by the theme your using.
You are on the right track here, this sample code should answer your query.
using System;
using Gtk;
namespace TogglePlay
{
public class MainClass
{
private bool stop = false;
private Image image;
private Label label;
public MainClass ()
{
Button button = new Button();
VBox box = new VBox();
image = new Image(Stock.MediaPlay, IconSize.Button);
box.PackStart(image, true, true, 0);
label = new Label("Start");
box.PackStart(label, true, true, 0);
button.Add(box);
button.Clicked += OnButtonClicked;
Window window = new Window("LAMP light");
window.Add(button);
window.DeleteEvent += DeleteWindow;
window.ShowAll();
}
private void DeleteWindow(object obj, DeleteEventArgs args)
{
Gtk.Application.Quit();
}
public void OnButtonClicked(object widget, EventArgs args)
{
if (!stop) {
stop = true;
image.Stock = Stock.MediaStop;
label.Text = "Stop";
} else {
stop = false;
image.Stock = Stock.MediaPlay;
label.Text = "Start";
}
}
public static void Main(String[] args)
{
Gtk.Application.Init ();
MainClass mainClass = new MainClass();
Gtk.Application.Run ();
}
}
}
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