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// 7 july 2014
package ui
// Control represents a control.
// All Controls have event handlers that take a single argument (the Doer active during the event) and return nothing.
type Control interface {
controlParent // platform-specific
// TODO enable/disable (public)
// TODO show/hide (public)
containerShow() // for Windows, where all controls need ot belong to an overlapped window, not to a container control; these respect programmer settings
containerHide()
controlSizing
}
// Button is a clickable button that performs some task.
type Button interface {
Control
// OnClicked sets the event handler for when the Button is clicked.
OnClicked(func())
// Text and SetText get and set the Button's label text.
Text() string
SetText(text string)
}
// NewButton creates a new Button with the given label text.
func NewButton(text string) Button {
return newButton(text)
}
// Checkbox is a clickable box that indicates some Boolean value.
type Checkbox interface {
Control
// OnClicked sets the event handler for when the Checkbox is clicked (to change its toggle state).
// TODO change to OnToggled() or OnChecked()?
OnClicked(func())
// Text and SetText are Requests that get and set the Checkbox's label text.
Text() string
SetText(text string)
// Checked and SetChecked get and set the Checkbox's check state.
Checked() bool
SetChecked(checked bool)
}
// NewCheckbox creates a new Checkbox with the given label text.
// The Checkbox will be initially unchecked.
func NewCheckbox(text string) Checkbox {
return newCheckbox(text)
}
// LineEdit blah blah blah TODO write this
// TODO change name
type LineEdit interface {
Control
// TODO figure out what events are appropriate
// Text and SetText are Requests that get and set the Checkbox's label text.
Text() string
SetText(text string)
}
// TODO NewLineEdit, NewPasswordEdit, ...
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