public void SetContent(string label, bool useMnemonic, ImageDescription image, ContentPosition position)
{
Widget.UseUnderline = useMnemonic;
this.image = image;
if (label != null && label.Length == 0)
{
label = null;
}
Button b = (Button)Frontend;
if (label != null && image.Backend == null && b.Type == ButtonType.Normal)
{
Widget.Label = label;
return;
}
if (b.Type == ButtonType.Disclosure)
{
Widget.Label = null;
Widget.Image = new Gtk.Arrow(Gtk.ArrowType.Down, Gtk.ShadowType.Out);
Widget.Image.ShowAll();
return;
}
Gtk.Widget contentWidget = null;
Gtk.Widget imageWidget = null;
if (image.Backend != null)
{
imageWidget = new ImageBox(ApplicationContext, image.WithDefaultSize(Gtk.IconSize.Button));
}
labelWidget = null;
if (label != null && imageWidget == null)
{
contentWidget = labelWidget = new Gtk.Label(label);
}
else if (label == null && imageWidget != null)
{
contentWidget = imageWidget;
}
else if (label != null && imageWidget != null)
{
Gtk.Box box = position == ContentPosition.Left || position == ContentPosition.Right ? (Gtk.Box) new Gtk.HBox(false, 3) : (Gtk.Box) new Gtk.VBox(false, 3);
labelWidget = new Gtk.Label(label)
{
UseUnderline = useMnemonic
};
if (position == ContentPosition.Left || position == ContentPosition.Top)
{
box.PackStart(imageWidget, false, false, 0);
box.PackStart(labelWidget, false, false, 0);
}
else
{
box.PackStart(labelWidget, false, false, 0);
box.PackStart(imageWidget, false, false, 0);
}
contentWidget = box;
}
var expandButtonContent = false;
if (b.Type == ButtonType.DropDown)
{
if (contentWidget != null)
{
Gtk.HBox box = new Gtk.HBox(false, 3);
box.PackStart(contentWidget, true, true, 3);
box.PackStart(new Gtk.Arrow(Gtk.ArrowType.Down, Gtk.ShadowType.Out), false, false, 0);
contentWidget = box;
expandButtonContent = true;
}
else
{
contentWidget = new Gtk.Arrow(Gtk.ArrowType.Down, Gtk.ShadowType.Out);
}
}
if (contentWidget != null)
{
contentWidget.ShowAll();
Widget.Label = null;
Widget.Image = contentWidget;
var alignment = Widget.Child as Gtk.Alignment;
if (alignment != null)
{
if (expandButtonContent)
{
var box = alignment.Child as Gtk.Box;
if (box != null)
{
alignment.Xscale = 1;
box.SetChildPacking(box.Children [0], true, true, 0, Gtk.PackType.Start);
if (labelWidget != null)
{
labelWidget.Xalign = 0;
}
}
}
else if (position == ContentPosition.Left && (contentWidget is Gtk.Box))
{
// in case the button is wider than its natural size and has text and an image on the left,
// optimize its alignment to make the text more centered.
// FIXME: more sophisticated size calculation
alignment.Xalign = 0.475f;
}
}
if (labelWidget != null)
{
labelWidget.UseUnderline = useMnemonic;
if (customFont != null)
{
labelWidget.ModifyFont(customFont);
}
if (customLabelColor.HasValue)
{
labelWidget.SetForegroundColor(customLabelColor.Value);
labelWidget.SetForegroundColor(Gtk.StateType.Prelight, customLabelColor.Value);
}
}
}
else
{
Widget.Label = null;
}
}
