static const QScreen *parentScreen
(const QScreen *current, const QScreen *lookingFor)
{
if (!current)
return 0;
switch (current->classId()) {
case QScreen::ProxyClass:
case QScreen::TransformedClass: {
const QScreen *child =
static_cast<const QProxyScreen *>(current)->screen();
if (child == lookingFor)
return current;
else
return parentScreen(child, lookingFor);
}
// Not reached.
case QScreen::MultiClass: {
QList<QScreen *> screens = current->subScreens();
foreach (QScreen *screen, screens) {
if (screen == lookingFor)
return current;
const QScreen *parent = parentScreen(screen, lookingFor);
if (parent)
return parent;
}
}
break;
default: break;
}
return 0;
}
void PWidget::draw(PPortingAbstract *disp) const
{
passert(parScreen, "no parent screen yet");
#ifdef DRAWING_MODE_CHANGESONLY
//draw root widget first
pixel_t w=0,h=0,x=0,y=0;
x = xGlobal(); y = yGlobal();
w = p.w; h = p.h;
//delegate color from parent widget or screen
PColor tmp = backgroundColorDelegated();
disp->putRectangle(x,x+w,y,y+h, tmp,true);
#endif
if (!visible())
return;
#ifndef DRAWING_MODE_CHANGESONLY
//draw root widget first
pixel_t w=0,h=0,x=0,y=0;
x = xGlobal(); y = yGlobal();
w = p.w; h = p.h;
//delegate color from parent widget or screen
PColor tmp = backgroundColorDelegated();
disp->putRectangle(x,x+w,y,y+h, tmp,true);
#endif
//draw all children
PWidget * temp = child;
while(temp != NULL)
{
temp->draw(disp);
temp = temp->next;
}
if (hasFocus())
{
disp->putRectangle(x,x+w,y,y+h,parentScreen()->focusColor());
disp->putRectangle(x+1,x+w-1,y+1,y+h-1,parentScreen()->focusColor());
}
}
PColor PWidget::backgroundColorDelegated() const
{
if (color().isValid())
return color();
//delegate up to screen
PWidget * wid = parent();
while(wid)
{
if (wid->color().isValid())
{
return wid->color();
}
wid = wid->parent();
}
//no widget has valid font so take font from screen
passert(parentScreen(),"screen is null");
return parentScreen()->color();
}
/**
* @brief PWidget::fontDelegated
* @return return delegated font up to screen
*/
PFont * PWidget::fontDelegated() const
{
if (p.font)
return p.font;
//delegate up to screen
PWidget * wid = parent();
while(wid)
{
if (wid->font())
{
return wid->font();
}
wid = wid->parent();
}
//no widget has valid font so take font from screen
passert(parentScreen(),"screen is null");
return parentScreen()->font();
}
int PvrEglScreen::transformation() const
{
// We need to search for our parent screen, which is assumed to be
// "Transformed". If it isn't, then there is no transformation.
// There is no direct method to get the parent screen so we need
// to search every screen until we find ourselves.
if (!parent && qt_screen != this)
parent = parentScreen(qt_screen, this);
if (!parent)
return 0;
if (parent->classId() != QScreen::TransformedClass)
return 0;
return 90 * static_cast<const QTransformedScreen *>(parent)
->transformation();
}
/**
* @brief PWidget::standardNextPrev
* standard selecting previous/next widget by up/down key
* @param key
*/
void PWidget::standardNextPrev(const PKeyEvent * key)
{
PWidget * p = 0;
bool b = parentScreen()->inCircles();
typedef PWidget* (PWidget::*f)() const;
f fc = NULL;
if (key->event == PRESSED)
{
if (key->key == kUP)
{
if (b)
fc = &PWidget::prevSiblingCircle;
else
fc = &PWidget::prevSibling;
}
if (key->key == kDOWN)
{
if (b)
fc = &PWidget::nextSiblingCircle;
else
fc = &PWidget::nextSibling;
}
if (!fc)
return;
p = (this->*fc)();
while(p != NULL && !(p->visible() && p->selectable() && p->enabled()))
p = (p->*fc)();
if (p)
{
p->setFocus();
#ifdef DRAWING_MODE_CHANGESONLY
dirty = true;
p->dirty = true;
#endif
}
}
}
PWidget * PWidget::prevSibling() const
{
PWidget * temp = 0;
if (paren)
{
temp = paren->firstChild();
}
else
{
passert(parScreen, "no parent screen");
temp = parentScreen()->firstChild();
}
while(temp->nextSibling() != this)
{
temp = temp->nextSibling();
if (temp == 0)
return temp;
}
return temp;
}
