Reference for the Mosaic class Steel::Switch

Steel::Switch
Active
OnChange
OnSwitchOff
OnSwitchOn
Outlet
enterLeaveSlot
onOkSlot
outletSlot
pressReleaseSlot
Core::Group
AlphaBlended
Buffered
Embedded
Enabled
Focus
Opacity
Visible
Add()
AddBehind()
BroadcastEvent()
BroadcastEventAtPosition()
CountViews()
DispatchEvent()
FindNextView()
FindPrevView()
FindSiblingView()
FindViewAtPosition()
FindViewInDirection()
FindViewWithinArea()
GetContentArea()
GetIndexOfView()
GetViewAtIndex()
GlobalPosition()
HasViewState()
Init()
InvalidateArea()
InvalidateViewState()
LocalPosition()
ObtainFocus()
Remove()
Restack()
RestackBack()
RestackBehind()
RestackTop()
UpdateLayout()
UpdateViewState()
Core::RectView
Bounds
Core::View
Layout
Owner
ArrangeView()
ChangeViewState()
CursorHitTest()
Draw()
GetExtent()
GetRoot()
HandleEvent()
MoveView()

Switch widget with a steel design. The widget is used to switch a boolean value on and off. The appearance is similar to a switch with on/off position.

property bool Active = false;

The property 'Active' stores the current state of the switch. As long as the property is 'false', the widget should appear in switched-off position. As long as the property is 'true', the widget should appear in switched-on position.

property slot OnChange = null;

The property 'OnChange' can refer to a slot method, which will receive a signal as soon the user has pressed the switch. Thereupon the method's logic will be executed.

property slot OnSwitchOff = null;

The property 'OnSwitchOff' can refer to a slot method, which will receive a signal as soon the widget has changed its state to 'switched-off'. Thereupon the method's logic will be executed.

property slot OnSwitchOn = null;

The property 'OnSwitchOn' can refer to a slot method, which will receive a signal as soon the widget has changed its state to 'switched-on'. Thereupon the method's logic will be executed.

property ^bool Outlet = null;

The property 'Outlet' provides an interface for the Model-View-Controller (MVC). In the MVC, the widgets (views, controllers) and the application logic (model) are always kept apart. An automatism behind this model ensures, that widgets are notified automatically as soon as the affected model has changed its state. On the other hand, user interactions on a widget cause the affected model to execute the application logic. Usually, a model is a simple Chora object containing several properties and the implementation of onget/onset method.

By assigning a property reference, Outlet establishes a connection between the widget and the model object, the affected property belongs to. After this, the widget is able to read and modify the referred property in response to the user interactions. It is also able to adapt the widget appearance, if the value of the referred property has been modified by another widget or by the application logic itself.

slot enterLeaveSlot;

This internal slot method is used to receive the corresponding signals form the touch handler.

slot onOkSlot;

This internal slot method is used to receive the corresponding signal form the keyboard handler.

slot outletSlot;

This slot method will receive a signal, if the value of the property assigned to Outlet has been changed by another widget or by the application logic. In response to this notification, the widget will update itself.

slot pressReleaseSlot;

This internal slot method is used to receive the corresponding signals form the touch handler.