FindFocusBoxAction

This branch action tracks and reports position of the current focus box.

@safe

class FindFocusBoxAction : BranchAction , Publisher!(Optional!Rectangle) {

import fluid.node;;

FocusIO focusIO;

Optional!Rectangle focusBox;

this(FocusIO focusIO);

alias then = typeof(super).then;

alias then = Publisher!(Optional!Rectangle).then;

alias subscribe = typeof(super).subscribe;

void subscribe(Subscriber!(Optional!Rectangle) subscriber);

void started();

void beforeDraw(Node node, Rectangle , Rectangle , Rectangle inner);

void stopped();

}

Constructors

this this(FocusIO focusIO): Prepare the action. To work, it needs to know the FocusIO it will search in. At this point it can be omitted, but it has to be set before the action launches.

Members

Aliases

subscribe alias subscribe = typeof(super).subscribe: Undocumented in source.
then alias then = typeof(super).then: Undocumented in source.
then alias then = Publisher!(Optional!Rectangle).then: Undocumented in source.

Functions

beforeDraw void beforeDraw(Node node, Rectangle , Rectangle , Rectangle inner): Undocumented in source. Be warned that the author may not have intended to support it.
started void started(): Undocumented in source. Be warned that the author may not have intended to support it.
stopped void stopped(): Undocumented in source. Be warned that the author may not have intended to support it.
subscribe void subscribe(Subscriber!(Optional!Rectangle) subscriber): Undocumented in source. Be warned that the author may not have intended to support it.

Variables

focusBox Optional!Rectangle focusBox;: Focus box reported by the node, if any. Use .then((Rectangle) { ... }) to get the focus box the moment it is found.
focusIO FocusIO focusIO;: System holding the focused node in question.

Inherited Members

From BranchAction

beforeTree void beforeTree(Node , Rectangle )
beforeResize void beforeResize(Node , Vector2 )
afterTree void afterTree()
afterInput void afterInput(bool ): A branch action can only hook to draw calls of specific nodes. It cannot bind into these hooks.
filterBeforeDraw bool filterBeforeDraw(Node node): Branch action excludes the start node from results.
filterAfterDraw bool filterAfterDraw(Node node): Branch action excludes the start node from results.
stopped void stopped(): Undocumented in source. Be warned that the author may not have intended to support it.

Examples

Using FindFocusBoxAction.

import fluid.node;
import fluid.space;

class MyNode : Space {

    FocusIO focusIO;
    FindFocusBoxAction findFocusBoxAction;

    this(Node[] nodes...) {
        super(nodes);
        this.findFocusBoxAction = new FindFocusBoxAction;
    }

    override void resizeImpl(Vector2 space) {

        require(focusIO);
        findFocusBoxAction.focusIO = focusIO;

        super.resizeImpl(space);

    }

    override void drawImpl(Rectangle outer, Rectangle inner) {

        // Start the action before drawing nodes
        auto frame = startBranchAction(findFocusBoxAction);
        super.drawImpl(outer, inner);

        // Inspect the result
        auto result = findFocusBoxAction.focusBox;

    }

}

FindFocusBoxAction

Constructors

Members

Aliases

Functions

Variables

Inherited Members

From BranchAction

Examples

Meta

Source