widget.cpp

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#include "widget.h"
#include "event.h"
#include "application.h"

namespace wit {

struct WidgetPrivate {
    unsigned char hasFocus : 4;
    bool autoFocus : 1;
};

Widget::Widget() : EventHandler(), Hotspot(), Renderer()
{
    d = new WidgetPrivate;
    d->autoFocus = true;
    d->hasFocus = 0;
    setEventHandler(this);
}

bool Widget::autoFocus() const
{
    return d->autoFocus;
}

void Widget::setAutoFocus(bool on)
{
    d->autoFocus = on;
}

bool Widget::hasPointer(int controllerID) const
{
    if(controllerID == -1)
        return d->hasFocus;
    return d->hasFocus & (1 << controllerID);
}

bool Widget::pointerEvent(PointerEvent* event)
{
    unsigned char bit = (1 << event->controllerNumber);
    if(d->autoFocus && !(d->hasFocus & bit)) {
        d->hasFocus |= bit;
        Application::instance()->pushFocus(this, event->controllerNumber);
        focusEvent(event);
    }
    return true;
}

void Widget::focusEvent(PointerEvent* event)
{
    // do nothing
    (void)event;
}

bool Widget::pointerLeaveEvent(PointerLeaveEvent* event)
{
    unsigned char bit = (1 << event->controllerNumber);
    if(d->autoFocus && (d->hasFocus & bit)) {
        d->hasFocus &= ~bit;
        Application::instance()->removeFromFocusStack(this, event->controllerNumber);
    }
    return true;
}

}