State QML Type▲
-
Import Statement: import QtQml.StateMachine 1.12
-
Since: Qt 5.4
-
Inherited By:: StateMachine
-
Inherits: QAbstractState
-
Group: State is part of statemachine-qmltypes
Detailed Description▲
State objects can have child states as well as transitions to other states. State is part of The Declarative State Machine Framework.
States with Child States▲
The childMode property determines how child states are treated. For non-parallel state groups, the initialState property must be used to set the initial state. The child states are mutually exclusive states, and the state machine needs to know which child state to enter when the parent state is the target of a transition.
The state emits the State::finished() signal when a final child state (FinalState) is entered.
The errorState sets the state's error state. The error state is the state that the state machine will transition to if an error is detected when attempting to enter the state (e.g. because no initial state has been set).
Example Usage▲
import QtQuick 2.0
import QtQml.StateMachine 1.0 as DSM
Rectangle {
DSM.StateMachine {
id: stateMachine
initialState: state
running: true
DSM.State {
id: state
}
}
}See Also▲
See also StateMachine, FinalState
Property Documentation▲
childMode : enumeration▲
The child mode of this state
The default value of this property is QState.ExclusiveStates.
This enum specifies how a state's child states are treated:
-
QState.ExclusiveStates The child states are mutually exclusive and an initial state must be set by setting initialState property.
-
QState.ParallelStates The child states are parallel. When the parent state is entered, all its child states are entered in parallel.
errorState : QAbstractState▲
The error state of this state.
initialState : QAbstractState▲
The initial state of this state (one of its child states).