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334 lines
10 KiB
334 lines
10 KiB
// -----------------------------------------------------------------------------------
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// Large chunks of this file are taken straight from the qwidget_p.h file in Qt4
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//
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// Specifically, these structures and classes must be kept in sync with Qt4:
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// QWidgetBackingStoreTracker
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// QTLWExtra
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// QWExtra
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// The same applies to the implementations defined in tqwidget.cpp
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//
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// Enjoy!
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// -----------------------------------------------------------------------------------
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#ifndef QWIDGET_P_H
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#define QWIDGET_P_H
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#include <Qt/qpointer.h>
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#include <Qt/qset.h>
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// Extra QWidget data
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// - to minimize memory usage for members that are seldom used.
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// - top-level widgets have extra extra data to reduce cost further
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#if defined(Q_WS_QWS)
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class QWSManager;
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#endif
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#if defined(Q_WS_MAC)
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class QCoreGraphicsPaintEnginePrivate;
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#endif
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class QPaintEngine;
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class QPixmap;
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class QWidgetBackingStore;
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class QGraphicsProxyWidget;
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class QWidgetItemV2;
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class Q_AUTOTEST_EXPORT QWidgetBackingStoreTracker
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{
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public:
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QWidgetBackingStoreTracker();
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~QWidgetBackingStoreTracker();
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void create(QWidget *tlw);
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void destroy();
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void registerWidget(QWidget *w);
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void unregisterWidget(QWidget *w);
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inline QWidgetBackingStore* data()
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{
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return m_ptr;
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}
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inline QWidgetBackingStore* operator->()
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{
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return m_ptr;
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}
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inline QWidgetBackingStore& operator*()
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{
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return *m_ptr;
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}
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inline operator bool() const
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{
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return (0 != m_ptr);
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}
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private:
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Q_DISABLE_COPY(QWidgetBackingStoreTracker)
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private:
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QWidgetBackingStore* m_ptr;
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QSet<QWidget *> m_widgets;
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};
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struct QTLWExtra {
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// *************************** Cross-platform variables *****************************
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// Regular pointers (keep them together to avoid gaps on 64 bits architectures).
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QIcon *icon; // widget icon
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QPixmap *iconPixmap;
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QWidgetBackingStoreTracker backingStore;
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QWindowSurface *windowSurface;
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QPainter *sharedPainter;
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// Implicit pointers (shared_null).
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QString caption; // widget caption
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QString iconText; // widget icon text
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QString role; // widget role
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QString filePath; // widget file path
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// Other variables.
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short incw, inch; // size increments
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short basew, baseh; // base sizes
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// frame strut, don't use these directly, use QWidgetPrivate::frameStrut() instead.
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QRect frameStrut;
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QRect normalGeometry; // used by showMin/maximized/FullScreen
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Qt::WindowFlags savedFlags; // Save widget flags while showing fullscreen
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// *************************** Cross-platform bit fields ****************************
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uint opacity : 8;
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uint posFromMove : 1;
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uint sizeAdjusted : 1;
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uint inTopLevelResize : 1;
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uint inRepaint : 1;
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uint embedded : 1;
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// *************************** Platform specific values (bit fields first) **********
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#if defined(Q_WS_X11) // <----------------------------------------------------------- X11
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uint spont_unmapped: 1; // window was spontaneously unmapped
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uint dnd : 1; // DND properties installed
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uint validWMState : 1; // is WM_STATE valid?
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uint waitingForMapNotify : 1; // show() has been called, haven't got the MapNotify yet
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WId parentWinId; // tqparent window Id (valid after reparenting)
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WId userTimeWindow; // window id that tqcontains user-time timestamp when WM supports a _NET_WM_USER_TIME_WINDOW atom
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QPoint fullScreenOffset;
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#ifndef QT_NO_XSYNC
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WId syncUpdateCounter;
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ulong syncRequestTimestamp;
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qint32 newCounterValueHi;
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quint32 newCounterValueLo;
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#endif
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#elif defined(Q_WS_WIN) // <--------------------------------------------------------- WIN
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uint hotkeyRegistered: 1; // Hot key from the STARTUPINFO has been registered.
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HICON winIconBig; // internal big Windows icon
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HICON winIconSmall; // internal small Windows icon
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#elif defined(Q_WS_MAC) // <--------------------------------------------------------- MAC
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uint resizer : 4;
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uint isSetGeometry : 1;
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uint isMove : 1;
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quint32 wattr;
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quint32 wclass;
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WindowGroupRef group;
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IconRef windowIcon; // the current window icon, if set with setWindowIcon_sys.
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quint32 savedWindowAttributesFromMaximized; // Saved attributes from when the calling updateMaximizeButton_sys()
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#ifdef QT_MAC_USE_COCOA
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// This value is just to make sure we maximize and restore to the right location, yet we allow apps to be maximized and
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// manually resized.
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// The name is misleading, since this is set when maximizing the window. It is a hint to saveGeometry(..) to record the
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// starting position as 0,0 instead of the normal starting position.
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bool wasMaximized;
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#endif // QT_MAC_USE_COCOA
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#elif defined(Q_WS_QWS) // <--------------------------------------------------------- QWS
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#ifndef QT_NO_QWS_MANAGER
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QWSManager *qwsManager;
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#endif
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#elif defined(Q_OS_SYMBIAN)
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uint inExpose : 1; // Prevents drawing recursion
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#endif
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};
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struct QWExtra {
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// *************************** Cross-platform variables *****************************
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// Regular pointers (keep them together to avoid gaps on 64 bits architectures).
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void *glContext; // if the widget is hijacked by QGLWindowSurface
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QTLWExtra *topextra; // only useful for TLWs
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#ifndef QT_NO_GRAPHICSVIEW
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QGraphicsProxyWidget *proxyWidget; // if the widget is embedded
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#endif
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#ifndef QT_NO_CURSOR
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QCursor *curs;
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#endif
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QPointer<QStyle> style;
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QPointer<QWidget> focus_proxy;
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// Implicit pointers (shared_empty/shared_null).
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QRegion tqmask; // widget tqmask
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QString styleSheet;
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// Other variables.
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qint32 minw;
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qint32 minh; // minimum size
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qint32 maxw;
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qint32 maxh; // maximum size
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quint16 customDpiX;
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quint16 customDpiY;
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QSize staticContentsSize;
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// *************************** Cross-platform bit fields ****************************
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uint explicitMinSize : 2;
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uint explicitMaxSize : 2;
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uint autoFillBackground : 1;
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uint nativeChildrenForced : 1;
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uint inRenderWithPainter : 1;
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uint hasMask : 1;
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// *************************** Platform specific values (bit fields first) **********
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#if defined(Q_WS_WIN) // <----------------------------------------------------------- WIN
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#ifndef QT_NO_DRAGANDDROP
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QOleDropTarget *dropTarget; // drop target
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QList<QPointer<QWidget> > oleDropWidgets;
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#endif
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#elif defined(Q_WS_X11) // <--------------------------------------------------------- X11
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uint compress_events : 1;
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WId xDndProxy; // XDND forwarding to embedded windows
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#elif defined(Q_WS_MAC) // <------------------------------------------------------ MAC
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#ifdef QT_MAC_USE_COCOA
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// Cocoa Mask stuff
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QImage maskBits;
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CGImageRef imageMask;
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#endif
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#elif defined(Q_OS_SYMBIAN) // <----------------------------------------------------- Symbian
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uint activated : 1; // RWindowBase::Activated has been called
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/**
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* If this bit is set, each native widget receives the Q_SIGNALS from the
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* Symbian control immediately before and immediately after draw ops are
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* sent to the window server for this control:
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* void beginNativePaintEvent(const QRect &paintRect);
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* void endNativePaintEvent(const QRect &paintRect);
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*/
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uint receiveNativePaintEvents : 1;
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/**
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* Defines the behaviour of QSymbianControl::Draw.
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*/
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enum NativePaintMode {
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/**
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* Normal drawing mode: blits the required region of the backing store
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* via WSERV.
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*/
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Blit,
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/**
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* Disable drawing for this widget.
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*/
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Disable,
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/**
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* Paint zeros into the WSERV framebuffer, using BitGDI APIs. For windows
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* with an EColor16MU display mode, zero is written only into the R, G and B
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* channels of the pixel.
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*/
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ZeroFill,
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Default = Blit
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};
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NativePaintMode nativePaintMode;
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#endif
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};
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class Q_GUI_EXPORT QWidgetPrivate
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{
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// Q_DECLARE_PUBLIC(QWidget)
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public:
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// *************************** Cross-platform ***************************************
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enum DrawWidgetFlags {
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DrawAsRoot = 0x01,
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DrawPaintOnScreen = 0x02,
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DrawRecursive = 0x04,
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DrawInvisible = 0x08,
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DontSubtractOpaqueChildren = 0x10,
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DontSetCompositionMode = 0x20,
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DontDrawOpaqueChildren = 0x40
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};
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enum CloseMode {
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CloseNoEvent,
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CloseWithEvent,
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CloseWithSpontaneousEvent
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};
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enum Direction {
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DirectionNorth = 0x01,
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DirectionEast = 0x10,
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DirectionSouth = 0x02,
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DirectionWest = 0x20
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};
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// Functions.
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explicit QWidgetPrivate(int version);
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~QWidgetPrivate();
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QWExtra *extraData() const;
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QTLWExtra *topData() const;
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QTLWExtra *maybeTopData() const;
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QPainter *sharedPainter() const;
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void setSharedPainter(QPainter *painter);
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QWidgetBackingStore *maybeBackingStore() const;
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void init(QWidget *desktopWidget, Qt::WindowFlags f);
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void create_sys(WId window, bool initializeWindow, bool destroyOldWindow);
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void createRecursively();
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void createWinId(WId id = 0);
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void createTLExtra();
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void createExtra();
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void deleteExtra();
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void createSysExtra();
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void deleteSysExtra();
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void createTLSysExtra();
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void deleteTLSysExtra();
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void updateSystemBackground();
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void propagatePaletteChange();
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// Variables.
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// Regular pointers (keep them together to avoid gaps on 64 bit architectures).
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QWExtra *extra;
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QWidget *focus_next;
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QWidget *focus_prev;
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QWidget *focus_child;
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QLayout *layout;
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QRegion *needsFlush;
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QPaintDevice *redirectDev;
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QWidgetItemV2 *widgetItem;
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QPaintEngine *extraPaintEngine;
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mutable const QMetaObject *polished;
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QGraphicsEffect *graphicsEffect;
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// All widgets are added into the allWidgets set. Once
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// they receive a window id they are also added to the mapper.
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// This should just ensure that all widgets are deleted by QApplication
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static QWidgetMapper *mapper;
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};
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inline QWExtra *QWidgetPrivate::extraData() const
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{
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return extra;
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}
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inline QTLWExtra *QWidgetPrivate::topData() const
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{
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const_cast<QWidgetPrivate *>(this)->createTLExtra();
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return extra->topextra;
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}
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inline QTLWExtra *QWidgetPrivate::maybeTopData() const
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{
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return extra ? extra->topextra : 0;
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}
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#endif // QWIDGET_P_H
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