C++ (Cpp) GWindow::SetFocus示例

bool GView::Detach()
{
	ThreadCheck();
	
	// Detach view
	if (_Window)
	{
		GWindow *Wnd = dynamic_cast<GWindow*>(_Window);
		if (Wnd)
			Wnd->SetFocus(this, GWindow::ViewDelete);
		_Window = NULL;
	}

	GViewI *Par = GetParent();
	if (Par)
	{
		// Events
		Par->DelView(this);
		Par->OnChildrenChanged(this, false);
	}
	
	d->Parent = 0;
	d->ParentI = 0;

	{
		int Count = Children.Length();
		if (Count)
		{
			int Detached = 0;
			GViewI *c, *prev = NULL;

			while (c = Children.First())
			{
				LgiAssert(!prev || c != prev);
				if (c->GetParent())
					c->Detach();
				else
					Children.Delete(c);
				Detached++;
				prev = c;
			}
			LgiAssert(Count == Detached);
		}
	}

	if (_View)
	{
		LgiAssert(_View->object.parent_instance.g_type_instance.g_class);
		gtk_widget_destroy(_View);
		_View = 0;
	}

	return true;
}

示例#2

显示文件

文件： GView.cpp 项目： FEI17N/Lgi

void GView::_Delete()
{
	ThreadCheck();
	SetPulse();

	// Remove static references to myself
	if (_Over == this)
		_Over = 0;
	if (_Capturing == this)
		_Capturing = 0;
	
	GWindow *Wnd = GetWindow();
	if (Wnd && Wnd->GetFocus() == static_cast<GViewI*>(this))
		Wnd->SetFocus(this, GWindow::ViewDelete);

	if (LgiApp && LgiApp->AppWnd == this)
	{
		LgiApp->AppWnd = 0;
	}

	// Misc
	Pos.ZOff(-1, -1);

	// Heirarchy
	GViewI *c;
	while (c = Children.First())
	{
		if (c->GetParent() != (GViewI*)this)
		{
			printf("%s:%i - ~GView error, %s not attached correctly: %p(%s) Parent: %p(%s)\n",
				_FL, c->GetClass(), c, c->Name(), c->GetParent(), c->GetParent() ? c->GetParent()->Name() : "");
			Children.Delete(c);
		}

		DeleteObj(c);
	}

	Detach();
	LgiAssert(_View == NULL);
}