windowagentbase.cpp

浏览该文件的文档.

 
#include "windowagentbase.h"
#include "windowkit_p.h"
#include "windowagentbase_p.h"
#include "windowcontext_p.h"
 
Q_LOGGING_CATEGORY(qWindowKitLog, "qwindowkit")
 
QX_WINDOW_BEGIN_NAMESPACE
 
WindowAgentBasePrivate::WindowAgentBasePrivate()
    : q_ptr(nullptr)
    , m_context(nullptr)
{
}
 
WindowAgentBasePrivate::~WindowAgentBasePrivate() = default;
 
void WindowAgentBasePrivate::init()
{
    // The context is created here rather than in setup(). Every accessor on
    // WindowAgentBase and its subclasses goes through m_context, and asking a
    // freshly constructed agent for its title bar is a perfectly reasonable
    // thing to do - the answer is "none", not a null pointer dereference.
    //
    // createContext() is virtual, but it is not overridden anywhere and only
    // depends on compile-time platform macros, so calling it this early is
    // well defined.
    m_context.reset(createContext());
}
 
WindowContext *WindowAgentBasePrivate::createContext() const
{
#if defined(Q_OS_WINDOWS) && defined(QX_WINDOW_NATIVE)
    return new WindowContextWin();
#elif defined(Q_OS_MAC) && defined(QX_WINDOW_NATIVE)
    return new WindowContextCocoa();
#else
    return new WindowContextQt();
#endif
}
 
void WindowAgentBasePrivate::setup(QObject *host, WindowItemDelegate *delegate)
{
    if (!m_context) {
        m_context.reset(createContext());
    }
    m_context->setup(host, delegate);
}
 
WindowAgentBase::~WindowAgentBase() = default;
 
QVariant WindowAgentBase::windowAttribute(const QString &key) const
{
    Q_D(const WindowAgentBase);
    return d->m_context->windowAttribute(key);
}
 
bool WindowAgentBase::setWindowAttribute(const QString &key, const QVariant &attribute)
{
    Q_D(WindowAgentBase);
    return d->m_context->setWindowAttribute(key, attribute);
}
 
void WindowAgentBase::showSystemMenu(const QPoint &pos)
{
    Q_D(WindowAgentBase);
    d->m_context->showSystemMenu(pos);
}
 
void WindowAgentBase::centralize()
{
    Q_D(WindowAgentBase);
    d->m_context->virtual_hook(WindowContext::CentralizeHook, nullptr);
}
 
void WindowAgentBase::raise()
{
    Q_D(WindowAgentBase);
    d->m_context->virtual_hook(WindowContext::RaiseWindowHook, nullptr);
}
 
WindowAgentBase::WindowAgentBase(WindowAgentBasePrivate &d, QObject *parent)
    : QObject(parent)
    , d_ptr(&d)
{
    d.q_ptr = this;
 
    d.init();
}
 
QX_WINDOW_END_NAMESPACE