void QGraphicsWidgetPrivate::updatePalette(const QPalette &palette)
{
Q_Q(QGraphicsWidget);
// Update local palette setting.
this->palette = palette;
// Calculate new mask.
if (q->isWindow() && !q->testAttribute(Qt::WA_WindowPropagation))
inheritedPaletteResolveMask = 0;
int mask = palette.resolve() | inheritedPaletteResolveMask;
// Propagate to children.
for (int i = 0; i < children.size(); ++i) {
QGraphicsItem *item = children.at(i);
if (item->isWidget()) {
QGraphicsWidget *w = static_cast<QGraphicsWidget *>(item);
if (!w->isWindow() || w->testAttribute(Qt::WA_WindowPropagation))
w->d_func()->resolvePalette(mask);
} else {
item->d_ptr->resolvePalette(mask);
}
}
// Notify change.
QEvent event(QEvent::PaletteChange);
QApplication::sendEvent(q, &event);
}
void PPort::showClickFeedback()
{
QPalette p;
p.resolve(palette());
p.setColor(QPalette::Button, Qt::yellow);
setPalette(p);
}
QPalette QGraphicsWidgetPrivate::naturalWidgetPalette() const
{
Q_Q(const QGraphicsWidget);
QPalette palette;
if (QGraphicsWidget *parent = q->parentWidget()) {
palette = parent->palette();
} else if (scene) {
palette = scene->palette();
}
palette.resolve(0);
return palette;
}
QPalette PaletteEditor::getPalette(QDesignerFormEditorInterface *core, QWidget* parent, const QPalette &init,
const QPalette &parentPal, int *ok)
{
PaletteEditor dlg(core, parent);
QPalette parentPalette(parentPal);
uint mask = init.resolve();
for (int i = 0; i < (int)QPalette::NColorRoles; i++) {
if (!(mask & (1 << i))) {
parentPalette.setBrush(QPalette::Active, static_cast<QPalette::ColorRole>(i),
init.brush(QPalette::Active, static_cast<QPalette::ColorRole>(i)));
parentPalette.setBrush(QPalette::Inactive, static_cast<QPalette::ColorRole>(i),
init.brush(QPalette::Inactive, static_cast<QPalette::ColorRole>(i)));
parentPalette.setBrush(QPalette::Disabled, static_cast<QPalette::ColorRole>(i),
init.brush(QPalette::Disabled, static_cast<QPalette::ColorRole>(i)));
}
}
dlg.setPalette(init, parentPalette);
const int result = dlg.exec();
if (ok) *ok = result;
return result == QDialog::Accepted ? dlg.palette() : init;
}
void QGraphicsWidgetPrivate::setPalette_helper(const QPalette &palette)
{
if (this->palette == palette && this->palette.resolve() == palette.resolve())
return;
updatePalette(palette);
}