C++ (Cpp) BScreenSaver::StartSaver示例

示例#1

void
ModulesView::_OpenSaver()
{
	// create new screen saver preview & config

	BView* view = fPreviewView->AddPreview();
	fCurrentName = fSettings.ModuleName();
	fSaverRunner = new ScreenSaverRunner(view->Window(), view, fSettings);

#ifdef __HAIKU__
	BRect rect = fSettingsBox->InnerFrame().InsetByCopy(4, 4);
#else
	BRect rect = fSettingsBox->Bounds().InsetByCopy(4, 4);
	rect.top += 14;
#endif
	fSettingsView = new BView(rect, "SettingsView", B_FOLLOW_ALL, B_WILL_DRAW);

	fSettingsView->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
	fSettingsBox->AddChild(fSettingsView);

	BScreenSaver* saver = ScreenSaver();
	if (saver != NULL && fSettingsView != NULL) {
		saver->StartConfig(fSettingsView);
		if (saver->StartSaver(view, true) == B_OK) {
			fPreviewView->HideNoPreview();
			fSaverRunner->Run();
		} else
			fPreviewView->ShowNoPreview();
	} else {
		// Failed to load OR this is the "Darkness" screensaver. Show a black
		// preview (this is what will happen in both cases when screen_blanker
		// runs).
		fPreviewView->HideNoPreview();
	}

	if (fSettingsView->ChildAt(0) == NULL) {
		// There are no settings at all, we add the module name here to
		// let it look a bit better at least.
		BPrivate::BuildScreenSaverDefaultSettingsView(fSettingsView,
			fSettings.ModuleName()[0] ? fSettings.ModuleName()
				: B_TRANSLATE("Blackness"),
				saver != NULL || !fSettings.ModuleName()[0]
					? B_TRANSLATE("No options available")
					: B_TRANSLATE("Could not load screen saver"));
	}
}