mouse.sj

mouse_captureElement := empty'heap #element

mouse_capture(element : 'heap #element) {
    mouse_captureElement = valid(element)
    --c--
    SDL_CaptureMouse(true);
    --c--
}

mouse_hasCapture(element : 'heap #element) {
    ifValid mouse_captureElement {
        mouse_captureElement === element
    } elseEmpty {
        false
    }
}

mouse_release(element : 'heap #element) {
    console.writeLine("release")
    ifValid m : mouse_captureElement {
        if m === element {
            console.writeLine("release done")
            mouse_captureElement = empty'#element
            --c--
            SDL_CaptureMouse(false);
            --c--
        }
    }
    void
}

enum mouseEventType (
    move
    up
    down
)

mouseEvent(
    eventType : 'mouseEventType
    point : 'point
    isCaptured : 'bool
    isLeftDown : 'bool

    fireChildren(children : 'array!heap #element) {
        shouldContinue := true
        for i : 0 toReverse children.count {
            if shouldContinue {
                child : children[i]
                shouldContinue = child.fireMouseEvent(parent)
            }
        }   
        shouldContinue
    }

    asString() {
        "point : " + point.asString() + " isCaptured : " + isCaptured.asString() + " isLeftDown : " + isLeftDown.asString()
    }
) { this }