void IHandler <Start> .Handle(FrameArgs frame, Start e)
{
_cam = new Camera2D(e.Size, 1000f, Camera2DOrigin.LowerLeft);
_sprites = new Atlas("sprites.atlas");
_font = new BitmapFont("helvetica.font");
// create our UI root. adding it to the scene allows events
// like touch and resize to filter through the UI hierarchy.
// it also automatically disposes the hierarchy.
_root = new RootView(e.Size, 0f);
this.Add(_root);
// we'll create two side-by-side panels that will automatically
// resize properly if the window size changes (more relevant with
// orientation changes but also on desktop if you enable window
// resize).
var left = new ImageView(_sprites["box"], new LayoutSpec {
Left = p => 20,
Top = p => 20,
Width = p => Mathf.Floor((p.Width - 60f) / 2f),
Height = p => p.Height - 40
});
var right = new ImageView(_sprites["box"], new LayoutSpec {
Right = p => 20,
Top = p => 20,
Bottom = p => 20,
Width = p => Mathf.Floor((p.Width - 60f) / 2f),
});
_root.AddView(left);
_root.AddView(right);
// we'll set the text on this label when then button is clicked
var label = new Label("", _font, new LayoutSpec {
Top = p => 60,
Height = p => 50,
Left = p => 15,
Right = p => 15
});
left.AddView(label);
// create a button and hook up a click handler to set the label
var button = new Button(new LayoutSpec {
Top = p => 10,
Left = p => 10,
Right = p => 10,
Height = p => 50
})
{
NormalSprite = _sprites["button-normal"],
PressedSprite = _sprites["button-pressed"]
};
button.SetLabel("Click Me!", _font,
HorizontalAlignment.Center, VerticalAlignment.Middle);
button.Clicked += (sender, arg) =>
label.Text = "Thanks for clicking!";
left.AddView(button);
// create radio buttons to play with
var rgroup = new RadioGroup();
for (var i = 0; i < 3; i++)
{
var ii = i;
var radio = new Button(rgroup, new LayoutSpec {
Top = p => 10 + 65 * ii,
Left = p => 10,
Right = p => 10,
Height = p => 50
})
{
NormalSprite = _sprites["button-normal"],
PressedSprite = _sprites["button-pressed"],
ActiveSprite = _sprites["button-active"]
};
radio.SetLabel("Radio " + i, _font);
radio.Tag = i;
if (i == 0)
{
radio.IsActive = true;
}
right.AddView(radio);
}
rgroup.Changed += (sender, args) =>
label.Text = "Radio "
+ ((RadioGroup)sender).Active.Tag.ToString();
// create a toggle button that does nothing much
var toggle = new Button(new LayoutSpec {
Left = p => 10,
Right = p => 10,
Bottom = p => 10,
Height = p => 50
})
{
NormalSprite = _sprites["button-normal"],
PressedSprite = _sprites["button-pressed"],
ActiveSprite = _sprites["button-active"],
IsToggle = true
};
toggle.SetLabel("Toggle Me!", _font);
toggle.Clicked += (sender, args) =>
label.Text = toggle.IsActive ? "Toggled ON" : "Toggled OFF";
right.AddView(toggle);
}