Function buildDropDown

gui/builder_panel.go:321–358

buildDropDown builds a gui object of type: DropDown

(b *Builder, am map[string]interface{})

// buildDropDown builds a gui object of type: DropDown
func buildDropDown(b *Builder, am map[string]interface{}) (IPanel, error) {

	// If image label attribute defined use it, otherwise
	// uses default value.
	var imglabel *ImageLabel
	if iv := am[AttribImageLabel]; iv != nil {
		imgl := iv.(map[string]interface{})
		imgl[AttribType] = TypeImageLabel
		ipan, err := b.build(imgl, nil)
		if err != nil {
			return nil, err
		}
		imglabel = ipan.(*ImageLabel)
	} else {
		imglabel = NewImageLabel("")
	}

	// Builds drop down and set common attributes
	dd := NewDropDown(0, imglabel)
	err := b.SetAttribs(am, dd)
	if err != nil {
		return nil, err
	}

	// Builds children
	if am[AttribItems] != nil {
		items := am[AttribItems].([]map[string]interface{})
		for i := 0; i < len(items); i++ {
			item := items[i]
			child, err := b.build(item, dd)
			if err != nil {
				return nil, err
			}
			dd.Add(child.(*ImageLabel))
		}
	}
	return dd, nil
}

// buildMenu builds a gui object of type: Menu or MenuBar from the
// specified panel descriptor.