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katie/src/gui/kernel/qwidget_p.h
Ivailo Monev bfbc380756 initial import 
Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
2015-12-10 05:06:13 +02:00

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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWIDGET_P_H
#define QWIDGET_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp. This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
#include "QtGui/qwidget.h"
#include "qobject_p.h"
#include "QtCore/qrect.h"
#include "QtCore/qlocale.h"
#include "QtCore/qset.h"
#include "QtGui/qregion.h"
#include "QtGui/qsizepolicy.h"
#include "QtGui/qstyle.h"
#include "QtGui/qapplication.h"
#include <qgraphicseffect_p.h>
#include "QtGui/qgraphicsproxywidget.h"
#include "QtGui/qgraphicsscene.h"
#include "QtGui/qgraphicsview.h"
#include <qgesture_p.h>
#ifdef Q_WS_WIN
#include "QtCore/qt_windows.h"
#include <qdnd_p.h>
#endif // Q_WS_WIN
#ifdef Q_WS_X11
#include "QtGui/qx11info_x11.h"
#endif
#ifdef Q_WS_MAC
#include <qt_mac_p.h>
#endif
#if defined(Q_WS_QWS)
#include "QtGui/qinputcontext.h"
#include "QtGui/qscreen_qws.h"
#endif
QT_BEGIN_NAMESPACE
// Extra QWidget data
// - to minimize memory usage for members that are seldom used.
// - top-level widgets have extra extra data to reduce cost further
#if defined(Q_WS_QWS)
class QWSManager;
#endif
#if defined(Q_WS_MAC)
class QCoreGraphicsPaintEnginePrivate;
#endif
#if defined(Q_WS_QPA)
class QPlatformWindow;
#endif
class QPaintEngine;
class QPixmap;
class QWidgetBackingStore;
class QGraphicsProxyWidget;
class QWidgetItemV2;
class QStyle;
class QUnifiedToolbarSurface;
class Q_AUTOTEST_EXPORT QWidgetBackingStoreTracker
{
public:
QWidgetBackingStoreTracker();
~QWidgetBackingStoreTracker();
void create(QWidget *tlw);
void destroy();
void registerWidget(QWidget *w);
void unregisterWidget(QWidget *w);
void unregisterWidgetSubtree(QWidget *w);
inline QWidgetBackingStore* data()
{
return m_ptr;
}
inline QWidgetBackingStore* operator->()
{
return m_ptr;
}
inline QWidgetBackingStore& operator*()
{
return *m_ptr;
}
inline operator bool() const
{
return (0 != m_ptr);
}
private:
Q_DISABLE_COPY(QWidgetBackingStoreTracker)
private:
QWidgetBackingStore* m_ptr;
QSet<QWidget *> m_widgets;
};
struct QTLWExtra {
// *************************** Cross-platform variables *****************************
// Regular pointers (keep them together to avoid gaps on 64 bits architectures).
QIcon *icon; // widget icon
QPixmap *iconPixmap;
QWidgetBackingStoreTracker backingStore;
QWindowSurface *windowSurface;
QPainter *sharedPainter;
// Implicit pointers (shared_null).
QString caption; // widget caption
QString iconText; // widget icon text
QString role; // widget role
QString filePath; // widget file path
// Other variables.
short incw, inch; // size increments
short basew, baseh; // base sizes
// frame strut, don't use these directly, use QWidgetPrivate::frameStrut() instead.
QRect frameStrut;
QRect normalGeometry; // used by showMin/maximized/FullScreen
Qt::WindowFlags savedFlags; // Save widget flags while showing fullscreen
// *************************** Cross-platform bit fields ****************************
uint opacity : 8;
uint posFromMove : 1;
uint sizeAdjusted : 1;
uint inTopLevelResize : 1;
uint inRepaint : 1;
uint embedded : 1;
// *************************** Platform specific values (bit fields first) **********
#if defined(Q_WS_X11) // <----------------------------------------------------------- X11
uint spont_unmapped: 1; // window was spontaneously unmapped
uint dnd : 1; // DND properties installed
uint validWMState : 1; // is WM_STATE valid?
uint waitingForMapNotify : 1; // show() has been called, haven't got the MapNotify yet
WId parentWinId; // parent window Id (valid after reparenting)
WId userTimeWindow; // window id that contains user-time timestamp when WM supports a _NET_WM_USER_TIME_WINDOW atom
QPoint fullScreenOffset;
#ifndef QT_NO_XSYNC
WId syncUpdateCounter;
ulong syncRequestTimestamp;
qint32 newCounterValueHi;
quint32 newCounterValueLo;
#endif
#elif defined(Q_WS_WIN) // <--------------------------------------------------------- WIN
uint hotkeyRegistered: 1; // Hot key from the STARTUPINFO has been registered.
HICON winIconBig; // internal big Windows icon
HICON winIconSmall; // internal small Windows icon
#elif defined(Q_WS_MAC) // <--------------------------------------------------------- MAC
uint resizer : 4;
uint isSetGeometry : 1;
uint isMove : 1;
quint32 wattr;
quint32 wclass;
WindowGroupRef group;
IconRef windowIcon; // the current window icon, if set with setWindowIcon_sys.
quint32 savedWindowAttributesFromMaximized; // Saved attributes from when the calling updateMaximizeButton_sys()
#ifdef QT_MAC_USE_COCOA
// This value is just to make sure we maximize and restore to the right location, yet we allow apps to be maximized and
// manually resized.
// The name is misleading, since this is set when maximizing the window. It is a hint to saveGeometry(..) to record the
// starting position as 0,0 instead of the normal starting position.
bool wasMaximized;
#endif // QT_MAC_USE_COCOA
#elif defined(Q_WS_QWS) // <--------------------------------------------------------- QWS
#ifndef QT_NO_QWS_MANAGER
QWSManager *qwsManager;
#endif
#elif defined(Q_WS_QPA)
QPlatformWindow *platformWindow;
QPlatformWindowFormat platformWindowFormat;
quint32 screenIndex; // index in qplatformscreenlist
#endif
};
struct QWExtra {
// *************************** Cross-platform variables *****************************
// Regular pointers (keep them together to avoid gaps on 64 bits architectures).
void *glContext; // if the widget is hijacked by QGLWindowSurface
QTLWExtra *topextra; // only useful for TLWs
#ifndef QT_NO_GRAPHICSVIEW
QGraphicsProxyWidget *proxyWidget; // if the widget is embedded
#endif
#ifndef QT_NO_CURSOR
QCursor *curs;
#endif
QPointer<QStyle> style;
QPointer<QWidget> focus_proxy;
// Implicit pointers (shared_empty/shared_null).
QRegion mask; // widget mask
QString styleSheet;
// Other variables.
qint32 minw;
qint32 minh; // minimum size
qint32 maxw;
qint32 maxh; // maximum size
quint16 customDpiX;
quint16 customDpiY;
QSize staticContentsSize;
// *************************** Cross-platform bit fields ****************************
uint explicitMinSize : 2;
uint explicitMaxSize : 2;
uint autoFillBackground : 1;
uint nativeChildrenForced : 1;
uint inRenderWithPainter : 1;
uint hasMask : 1;
// *************************** Platform specific values (bit fields first) **********
#if defined(Q_WS_WIN) // <----------------------------------------------------------- WIN
#ifndef QT_NO_DRAGANDDROP
QOleDropTarget *dropTarget; // drop target
QList<QPointer<QWidget> > oleDropWidgets;
#endif
#elif defined(Q_WS_X11) // <--------------------------------------------------------- X11
uint compress_events : 1;
WId xDndProxy; // XDND forwarding to embedded windows
#elif defined(Q_WS_MAC) // <------------------------------------------------------ MAC
#ifdef QT_MAC_USE_COCOA
// Cocoa Mask stuff
QImage maskBits;
CGImageRef imageMask;
#endif
#endif
};
/*!
\internal
Returns true if \a p or any of its parents enable the
Qt::BypassGraphicsProxyWidget window flag. Used in QWidget::show() and
QWidget::setParent() to determine whether it's necessary to embed the
widget into a QGraphicsProxyWidget or not.
*/
static inline bool bypassGraphicsProxyWidget(const QWidget *p)
{
while (p) {
if (p->windowFlags() & Qt::BypassGraphicsProxyWidget)
return true;
p = p->parentWidget();
}
return false;
}
class Q_GUI_EXPORT QWidgetPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QWidget)
public:
// *************************** Cross-platform ***************************************
enum DrawWidgetFlags {
DrawAsRoot = 0x01,
DrawPaintOnScreen = 0x02,
DrawRecursive = 0x04,
DrawInvisible = 0x08,
DontSubtractOpaqueChildren = 0x10,
DontSetCompositionMode = 0x20,
DontDrawOpaqueChildren = 0x40,
DontDrawNativeChildren = 0x80
};
enum CloseMode {
CloseNoEvent,
CloseWithEvent,
CloseWithSpontaneousEvent
};
enum Direction {
DirectionNorth = 0x01,
DirectionEast = 0x10,
DirectionSouth = 0x02,
DirectionWest = 0x20
};
// Functions.
explicit QWidgetPrivate(int version = QObjectPrivateVersion);
~QWidgetPrivate();
QWExtra *extraData() const;
QTLWExtra *topData() const;
QTLWExtra *maybeTopData() const;
QPainter *sharedPainter() const;
void setSharedPainter(QPainter *painter);
QWidgetBackingStore *maybeBackingStore() const;
void init(QWidget *desktopWidget, Qt::WindowFlags f);
void create_sys(WId window, bool initializeWindow, bool destroyOldWindow);
void createRecursively();
void createWinId(WId id = 0);
void createTLExtra();
void createExtra();
void deleteExtra();
void createSysExtra();
void deleteSysExtra();
void createTLSysExtra();
void deleteTLSysExtra();
void updateSystemBackground();
void propagatePaletteChange();
void setPalette_helper(const QPalette &);
void resolvePalette();
QPalette naturalWidgetPalette(uint inheritedMask) const;
void setMask_sys(const QRegion &);
void raise_sys();
void lower_sys();
void stackUnder_sys(QWidget *);
void setFocus_sys();
void updateFont(const QFont &);
inline void setFont_helper(const QFont &font) {
if (data.fnt == font && data.fnt.resolve() == font.resolve())
return;
updateFont(font);
}
void resolveFont();
QFont naturalWidgetFont(uint inheritedMask) const;
void setLayoutDirection_helper(Qt::LayoutDirection);
void resolveLayoutDirection();
void setLocale_helper(const QLocale &l, bool forceUpdate = false);
void resolveLocale();
void setStyle_helper(QStyle *newStyle, bool propagate, bool metalHack = false);
void inheritStyle();
void setUpdatesEnabled_helper(bool );
void paintBackground(QPainter *, const QRegion &, int flags = DrawAsRoot) const;
bool isAboutToShow() const;
QRegion prepareToRender(const QRegion &region, QWidget::RenderFlags renderFlags);
void render_helper(QPainter *painter, const QPoint &targetOffset, const QRegion &sourceRegion,
QWidget::RenderFlags renderFlags);
void render(QPaintDevice *target, const QPoint &targetOffset, const QRegion &sourceRegion,
QWidget::RenderFlags renderFlags, bool readyToRender);
void drawWidget(QPaintDevice *pdev, const QRegion &rgn, const QPoint &offset, int flags,
QPainter *sharedPainter = 0, QWidgetBackingStore *backingStore = 0);
void paintSiblingsRecursive(QPaintDevice *pdev, const QObjectList& children, int index,
const QRegion &rgn, const QPoint &offset, int flags
#ifdef Q_BACKINGSTORE_SUBSURFACES
, const QWindowSurface *currentSurface
#endif
, QPainter *sharedPainter, QWidgetBackingStore *backingStore);
QPainter *beginSharedPainter();
bool endSharedPainter();
#ifndef QT_NO_GRAPHICSVIEW
static QGraphicsProxyWidget * nearestGraphicsProxyWidget(const QWidget *origin);
#endif
QWindowSurface *createDefaultWindowSurface();
QWindowSurface *createDefaultWindowSurface_sys();
void repaint_sys(const QRegion &rgn);
QRect clipRect() const;
QRegion clipRegion() const;
void subtractOpaqueChildren(QRegion &rgn, const QRect &clipRect) const;
void subtractOpaqueSiblings(QRegion &source, bool *hasDirtySiblingsAbove = 0,
bool alsoNonOpaque = false) const;
void clipToEffectiveMask(QRegion &region) const;
void updateIsOpaque();
void setOpaque(bool opaque);
void updateIsTranslucent();
bool paintOnScreen() const;
#ifndef QT_NO_GRAPHICSEFFECT
void invalidateGraphicsEffectsRecursively();
#endif //QT_NO_GRAPHICSEFFECT
const QRegion &getOpaqueChildren() const;
void setDirtyOpaqueRegion();
bool close_helper(CloseMode mode);
void setWindowIcon_helper();
void setWindowIcon_sys(bool forceReset = false);
void setWindowOpacity_sys(qreal opacity);
void adjustQuitOnCloseAttribute();
void scrollChildren(int dx, int dy);
void moveRect(const QRect &, int dx, int dy);
void scrollRect(const QRect &, int dx, int dy);
void invalidateBuffer_resizeHelper(const QPoint &oldPos, const QSize &oldSize);
// ### Qt 4.6: Merge into a template function (after MSVC isn't supported anymore).
void invalidateBuffer(const QRegion &);
void invalidateBuffer(const QRect &);
bool isOverlapped(const QRect&) const;
void syncBackingStore();
void syncBackingStore(const QRegion &region);
void reparentFocusWidgets(QWidget *oldtlw);
static int pointToRect(const QPoint &p, const QRect &r);
void setWinId(WId);
void showChildren(bool spontaneous);
void hideChildren(bool spontaneous);
void setParent_sys(QWidget *parent, Qt::WindowFlags);
void scroll_sys(int dx, int dy);
void scroll_sys(int dx, int dy, const QRect &r);
void deactivateWidgetCleanup();
void setGeometry_sys(int, int, int, int, bool);
void sendPendingMoveAndResizeEvents(bool recursive = false, bool disableUpdates = false);
void activateChildLayoutsRecursively();
void show_recursive();
void show_helper();
void show_sys();
void hide_sys();
void hide_helper();
void _q_showIfNotHidden();
void setEnabled_helper(bool);
void registerDropSite(bool);
static void adjustFlags(Qt::WindowFlags &flags, QWidget *w = 0);
void updateFrameStrut();
QRect frameStrut() const;
#ifdef QT_KEYPAD_NAVIGATION
static bool navigateToDirection(Direction direction);
static QWidget *widgetInNavigationDirection(Direction direction);
static bool canKeypadNavigate(Qt::Orientation orientation);
static bool inTabWidget(QWidget *widget);
#endif
void setWindowIconText_sys(const QString &cap);
void setWindowIconText_helper(const QString &cap);
void setWindowTitle_sys(const QString &cap);
#ifndef QT_NO_CURSOR
void setCursor_sys(const QCursor &cursor);
void unsetCursor_sys();
#endif
void setWindowTitle_helper(const QString &cap);
void setWindowFilePath_helper(const QString &filePath);
bool setMinimumSize_helper(int &minw, int &minh);
bool setMaximumSize_helper(int &maxw, int &maxh);
virtual bool hasHeightForWidth() const;
void setConstraints_sys();
bool pointInsideRectAndMask(const QPoint &) const;
QWidget *childAt_helper(const QPoint &, bool) const;
QWidget *childAtRecursiveHelper(const QPoint &p, bool, bool includeFrame = false) const;
void updateGeometry_helper(bool forceUpdate);
void getLayoutItemMargins(int *left, int *top, int *right, int *bottom) const;
void setLayoutItemMargins(int left, int top, int right, int bottom);
void setLayoutItemMargins(QStyle::SubElement element, const QStyleOption *opt = 0);
// aboutToDestroy() is called just before the contents of
// QWidget::destroy() is executed. It's used to signal QWidget
// sub-classes that their internals are about to be released.
virtual void aboutToDestroy() {}
#ifndef QT_NO_IM
QInputContext *assignedInputContext() const;
QInputContext *inputContext() const;
#endif
inline QWidget *effectiveFocusWidget() {
QWidget *w = q_func();
while (w->focusProxy())
w = w->focusProxy();
return w;
}
void setModal_sys();
// This is an helper function that return the available geometry for
// a widget and takes care is this one is in QGraphicsView.
// If the widget is not embed in a scene then the geometry available is
// null, we let QDesktopWidget decide for us.
static QRect screenGeometry(const QWidget *widget)
{
QRect screen;
#ifndef QT_NO_GRAPHICSVIEW
QGraphicsProxyWidget *ancestorProxy = widget->d_func()->nearestGraphicsProxyWidget(widget);
//It's embedded if it has an ancestor
if (ancestorProxy) {
if (!bypassGraphicsProxyWidget(widget) && ancestorProxy->scene() != 0) {
// One view, let be smart and return the viewport rect then the popup is aligned
if (ancestorProxy->scene()->views().size() == 1) {
QGraphicsView *view = ancestorProxy->scene()->views().at(0);
screen = view->mapToScene(view->viewport()->rect()).boundingRect().toRect();
} else {
screen = ancestorProxy->scene()->sceneRect().toRect();
}
}
}
#endif
return screen;
}
inline void setRedirected(QPaintDevice *replacement, const QPoint &offset)
{
Q_ASSERT(q_func()->testAttribute(Qt::WA_WState_InPaintEvent));
redirectDev = replacement;
redirectOffset = offset;
}
inline QPaintDevice *redirected(QPoint *offset) const
{
if (offset)
*offset = redirectDev ? redirectOffset : QPoint();
return redirectDev;
}
inline void restoreRedirected()
{ redirectDev = 0; }
inline void enforceNativeChildren()
{
if (!extra)
createExtra();
if (extra->nativeChildrenForced)
return;
extra->nativeChildrenForced = 1;
for (int i = 0; i < children.size(); ++i) {
if (QWidget *child = qobject_cast<QWidget *>(children.at(i)))
child->setAttribute(Qt::WA_NativeWindow);
}
}
inline bool nativeChildrenForced() const
{
return extra ? extra->nativeChildrenForced : false;
}
inline QRect effectiveRectFor(const QRect &rect) const
{
#ifndef QT_NO_GRAPHICSEFFECT
if (graphicsEffect && graphicsEffect->isEnabled())
return graphicsEffect->boundingRectFor(rect).toAlignedRect();
#endif //QT_NO_GRAPHICSEFFECT
return rect;
}
QSize adjustedSize() const;
inline void handleSoftwareInputPanel(Qt::MouseButton button, bool clickCausedFocus)
{
Q_Q(QWidget);
if (button == Qt::LeftButton && qApp->autoSipEnabled()) {
QStyle::RequestSoftwareInputPanel behavior = QStyle::RequestSoftwareInputPanel(
q->style()->styleHint(QStyle::SH_RequestSoftwareInputPanel));
if (!clickCausedFocus || behavior == QStyle::RSIP_OnMouseClick) {
QEvent event(QEvent::RequestSoftwareInputPanel);
QApplication::sendEvent(q, &event);
}
}
}
#ifndef Q_WS_QWS // Almost cross-platform :-)
void setWSGeometry(bool dontShow=false, const QRect &oldRect = QRect());
inline QPoint mapToWS(const QPoint &p) const
{ return p - data.wrect.topLeft(); }
inline QPoint mapFromWS(const QPoint &p) const
{ return p + data.wrect.topLeft(); }
inline QRect mapToWS(const QRect &r) const
{ QRect rr(r); rr.translate(-data.wrect.topLeft()); return rr; }
inline QRect mapFromWS(const QRect &r) const
{ QRect rr(r); rr.translate(data.wrect.topLeft()); return rr; }
#endif
// Variables.
// Regular pointers (keep them together to avoid gaps on 64 bit architectures).
QWExtra *extra;
QWidget *focus_next;
QWidget *focus_prev;
QWidget *focus_child;
QLayout *layout;
QRegion *needsFlush;
QPaintDevice *redirectDev;
QWidgetItemV2 *widgetItem;
QPaintEngine *extraPaintEngine;
mutable const QMetaObject *polished;
QGraphicsEffect *graphicsEffect;
// All widgets are added into the allWidgets set. Once
// they receive a window id they are also added to the mapper.
// This should just ensure that all widgets are deleted by QApplication
static QWidgetMapper *mapper;
static QWidgetSet *allWidgets;
#if !defined(QT_NO_IM)
QPointer<QInputContext> ic;
Qt::InputMethodHints imHints;
#endif
#ifdef QT_KEYPAD_NAVIGATION
static QPointer<QWidget> editingWidget;
#endif
// Implicit pointers (shared_null/shared_empty).
QRegion opaqueChildren;
QRegion dirty;
#ifndef QT_NO_TOOLTIP
QString toolTip;
#endif
#ifndef QT_NO_STATUSTIP
QString statusTip;
#endif
#ifndef QT_NO_WHATSTHIS
QString whatsThis;
#endif
#ifndef QT_NO_ACCESSIBILITY
QString accessibleName;
QString accessibleDescription;
#endif
// Other variables.
uint inheritedFontResolveMask;
uint inheritedPaletteResolveMask;
short leftmargin;
short topmargin;
short rightmargin;
short bottommargin;
signed char leftLayoutItemMargin;
signed char topLayoutItemMargin;
signed char rightLayoutItemMargin;
signed char bottomLayoutItemMargin;
static int instanceCounter; // Current number of widget instances
static int maxInstances; // Maximum number of widget instances
Qt::HANDLE hd;
QWidgetData data;
QSizePolicy size_policy;
QLocale locale;
QPoint redirectOffset;
#ifndef QT_NO_ACTION
QList<QAction*> actions;
#endif
#ifndef QT_NO_GESTURES
QMap<Qt::GestureType, Qt::GestureFlags> gestureContext;
#endif
// Bit fields.
uint high_attributes[4]; // the low ones are in QWidget::widget_attributes
QPalette::ColorRole fg_role : 8;
QPalette::ColorRole bg_role : 8;
uint dirtyOpaqueChildren : 1;
uint isOpaque : 1;
uint inDirtyList : 1;
uint isScrolled : 1;
uint isMoved : 1;
uint isGLWidget : 1;
uint usesDoubleBufferedGLContext : 1;
#ifndef QT_NO_IM
uint inheritsInputMethodHints : 1;
#endif
uint inSetParent : 1;
// *************************** Platform specific ************************************
#if defined(Q_WS_X11) // <----------------------------------------------------------- X11
QX11Info xinfo;
Qt::HANDLE picture;
static QWidget *mouseGrabber;
static QWidget *keyboardGrabber;
void setWindowRole();
void sendStartupMessage(const char *message) const;
void setNetWmWindowTypes();
void x11UpdateIsOpaque();
bool isBackgroundInherited() const;
void updateX11AcceptFocus();
QPoint mapToGlobal(const QPoint &pos) const;
QPoint mapFromGlobal(const QPoint &pos) const;
#elif defined(Q_WS_WIN) // <--------------------------------------------------------- WIN
uint noPaintOnScreen : 1; // see qwidget_win.cpp ::paintEngine()
#ifndef QT_NO_GESTURES
uint nativeGesturePanEnabled : 1;
#endif
bool shouldShowMaximizeButton();
void winUpdateIsOpaque();
void reparentChildren();
#ifndef QT_NO_DRAGANDDROP
QOleDropTarget *registerOleDnd(QWidget *widget);
void unregisterOleDnd(QWidget *widget, QOleDropTarget *target);
#endif
void grabMouseWhileInWindow();
void registerTouchWindow();
void winSetupGestures();
#elif defined(Q_WS_MAC) // <--------------------------------------------------------- MAC
// This is new stuff
uint needWindowChange : 1;
// Each wiget keeps a list of all its child and grandchild OpenGL widgets.
// This list is used to update the gl context whenever a parent and a granparent
// moves, and also to check for intersections with gl widgets within the window
// when a widget moves.
struct GlWidgetInfo
{
GlWidgetInfo(QWidget *widget) : widget(widget), lastUpdateWidget(0) { }
bool operator==(const GlWidgetInfo &other) const { return (widget == other.widget); }
QWidget * widget;
QWidget * lastUpdateWidget;
};
// dirtyOnWidget contains the areas in the widget that needs to be repained,
// in the same way as dirtyOnScreen does for the window. Areas are added in
// dirtyWidget_sys and cleared in the paint event. In scroll_sys we then use
// this information repaint invalid areas when widgets are scrolled.
QRegion dirtyOnWidget;
EventHandlerRef window_event;
QList<GlWidgetInfo> glWidgets;
//these are here just for code compat (HIViews)
Qt::HANDLE qd_hd;
void macUpdateSizeAttribute();
void macUpdateHideOnSuspend();
void macUpdateOpaqueSizeGrip();
void macUpdateIgnoreMouseEvents();
void macUpdateMetalAttribute();
void macUpdateIsOpaque();
void macSetNeedsDisplay(QRegion region);
void setEnabled_helper_sys(bool enable);
bool isRealWindow() const;
void adjustWithinMaxAndMinSize(int &w, int &h);
void applyMaxAndMinSizeOnWindow();
void update_sys(const QRect &rect);
void update_sys(const QRegion &rgn);
void setGeometry_sys_helper(int, int, int, int, bool);
void setWindowModified_sys(bool b);
void updateMaximizeButton_sys();
void setWindowFilePath_sys(const QString &filePath);
void createWindow_sys();
void recreateMacWindow();
#ifndef QT_MAC_USE_COCOA
void initWindowPtr();
void finishCreateWindow_sys_Carbon(OSWindowRef windowRef);
#else
void setSubWindowStacking(bool set);
void setWindowLevel();
void finishCreateWindow_sys_Cocoa(void * /*NSWindow * */ windowRef);
void syncCocoaMask();
void finishCocoaMaskSetup();
void syncUnifiedMode();
// Did we add the drawRectOriginal method?
bool drawRectOriginalAdded;
// Is the original drawRect method available?
bool originalDrawMethod;
// Do we need to change the methods?
bool changeMethods;
// Unified toolbar variables
bool isInUnifiedToolbar;
QUnifiedToolbarSurface *unifiedSurface;
QPoint toolbar_offset;
QWidget *toolbar_ancestor;
bool flushRequested;
bool touchEventsEnabled;
#endif // QT_MAC_USE_COCOA
void determineWindowClass();
void transferChildren();
bool qt_mac_dnd_event(uint, DragRef);
void toggleDrawers(bool);
//mac event functions
static bool qt_create_root_win();
static void qt_clean_root_win();
static bool qt_mac_update_sizer(QWidget *, int up = 0);
static OSStatus qt_window_event(EventHandlerCallRef er, EventRef event, void *);
static OSStatus qt_widget_event(EventHandlerCallRef er, EventRef event, void *);
static bool qt_widget_rgn(QWidget *, short, RgnHandle, bool);
void registerTouchWindow(bool enable = true);
#elif defined(Q_WS_QWS) // <--------------------------------------------------------- QWS
void setMaxWindowState_helper();
void setFullScreenSize_helper();
void moveSurface(QWindowSurface *surface, const QPoint &offset);
QRegion localRequestedRegion() const;
QRegion localAllocatedRegion() const;
friend class QWSManager;
friend class QWSManagerPrivate;
friend class QDecoration;
#ifndef QT_NO_CURSOR
void updateCursor() const;
#endif
QScreen* getScreen() const;
#elif defined(Q_WS_QPA) // <--------------------------------------------------------- QPA
void setMaxWindowState_helper();
void setFullScreenSize_helper();
#ifndef QT_NO_CURSOR
void updateCursor() const;
#endif
#endif
};
struct QWidgetPaintContext
{
inline QWidgetPaintContext(QPaintDevice *d, const QRegion &r, const QPoint &o, int f,
QPainter *p, QWidgetBackingStore *b)
: pdev(d), rgn(r), offset(o), flags(f), sharedPainter(p), backingStore(b), painter(0) {}
QPaintDevice *pdev;
QRegion rgn;
QPoint offset;
int flags;
QPainter *sharedPainter;
QWidgetBackingStore *backingStore;
QPainter *painter;
};
#ifndef QT_NO_GRAPHICSEFFECT
class QWidgetEffectSourcePrivate : public QGraphicsEffectSourcePrivate
{
public:
QWidgetEffectSourcePrivate(QWidget *widget)
: QGraphicsEffectSourcePrivate(), m_widget(widget), context(0), updateDueToGraphicsEffect(false)
{}
inline void detach()
{ m_widget->d_func()->graphicsEffect = 0; }
inline const QGraphicsItem *graphicsItem() const
{ return 0; }
inline const QWidget *widget() const
{ return m_widget; }
inline void update()
{
updateDueToGraphicsEffect = true;
m_widget->update();
updateDueToGraphicsEffect = false;
}
inline bool isPixmap() const
{ return false; }
inline void effectBoundingRectChanged()
{
// ### This function should take a rect parameter; then we can avoid
// updating too much on the parent widget.
if (QWidget *parent = m_widget->parentWidget())
parent->update();
else
update();
}
inline const QStyleOption *styleOption() const
{ return 0; }
inline QRect deviceRect() const
{ return m_widget->window()->rect(); }
QRectF boundingRect(Qt::CoordinateSystem system) const;
void draw(QPainter *p);
QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset,
QGraphicsEffect::PixmapPadMode mode) const;
QWidget *m_widget;
QWidgetPaintContext *context;
QTransform lastEffectTransform;
bool updateDueToGraphicsEffect;
};
#endif //QT_NO_GRAPHICSEFFECT
inline QWExtra *QWidgetPrivate::extraData() const
{
return extra;
}
inline QTLWExtra *QWidgetPrivate::topData() const
{
const_cast<QWidgetPrivate *>(this)->createTLExtra();
return extra->topextra;
}
inline QTLWExtra *QWidgetPrivate::maybeTopData() const
{
return extra ? extra->topextra : 0;
}
inline QPainter *QWidgetPrivate::sharedPainter() const
{
Q_Q(const QWidget);
QTLWExtra *x = q->window()->d_func()->maybeTopData();
return x ? x->sharedPainter : 0;
}
inline void QWidgetPrivate::setSharedPainter(QPainter *painter)
{
Q_Q(QWidget);
QTLWExtra *x = q->window()->d_func()->topData();
x->sharedPainter = painter;
}
inline bool QWidgetPrivate::pointInsideRectAndMask(const QPoint &p) const
{
Q_Q(const QWidget);
return q->rect().contains(p) && (!extra || !extra->hasMask || q->testAttribute(Qt::WA_MouseNoMask)
|| extra->mask.contains(p));
}
inline QWidgetBackingStore *QWidgetPrivate::maybeBackingStore() const
{
Q_Q(const QWidget);
QTLWExtra *x = q->window()->d_func()->maybeTopData();
return x ? x->backingStore.data() : 0;
}
QT_END_NAMESPACE
#endif // QWIDGET_P_H
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