Changeset 561 for trunk/src/gui/graphicsview/qgraphicswidget.cpp

Timestamp:

Feb 11, 2010, 11:19:06 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.1 sources.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/graphicsview/qgraphicswidget.cpp (modified) (42 diffs)

trunk/src/gui/graphicsview/qgraphicswidget.cpp

@@ -2 +2 @@
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtGui module of the Qt Toolkit.
@@ -21 +22 @@
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
@@ -34 +34 @@
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
@@ -75 +75 @@
     items in a QGraphicsScene.
     \since 4.4
-    \ingroup multimedia
     \ingroup graphicsview-api
 
@@ -171 +170 @@
 
 /*!
-    \property QGraphicsWidget::enabled
-    \brief whether the item is enabled or not
-
-    This property is declared in QGraphicsItem.
-
-    By default, this property is true.
-
-    \sa QGraphicsItem::isEnabled(), QGraphicsItem::setEnabled()
-*/
-
-/*!
-    \property QGraphicsWidget::visible
-    \brief whether the item is visible or not
-
-    This property is declared in QGraphicsItem.
-
-    By default, this property is true.
-
-    \sa QGraphicsItem::isVisible(), QGraphicsItem::setVisible(), show(),
-    hide()
-*/
-
-/*!
-    \property QGraphicsWidget::opacity
-    \brief the opacity of the widget
-*/    
-
-/*!
-    \property QGraphicsWidget::pos
-    \brief the position of the widget
-*/    
-
-/*!
     Constructs a QGraphicsWidget instance. The optional \a parent argument is
     passed to QGraphicsItem's constructor. The optional \a wFlags argument
@@ -210 +176 @@
 */
 QGraphicsWidget::QGraphicsWidget(QGraphicsItem *parent, Qt::WindowFlags wFlags)
-    : QGraphicsItem(*new QGraphicsWidgetPrivate, 0, 0), QGraphicsLayoutItem(0, false)
+    : QGraphicsObject(*new QGraphicsWidgetPrivate, 0, 0), QGraphicsLayoutItem(0, false)
 {
     Q_D(QGraphicsWidget);
@@ -222 +188 @@
 */
 QGraphicsWidget::QGraphicsWidget(QGraphicsWidgetPrivate &dd, QGraphicsItem *parent, QGraphicsScene *scene, Qt::WindowFlags wFlags)
-    : QGraphicsItem(dd, 0, scene), QGraphicsLayoutItem(0, false)
+    : QGraphicsObject(dd, 0, scene), QGraphicsLayoutItem(0, false)
 {
     Q_D(QGraphicsWidget);
@@ -292 +258 @@
     //we check if we have a layout previously
     if (d->layout) {
-        delete d->layout;
+        QGraphicsLayout *temp = d->layout;
         foreach (QGraphicsItem * item, childItems()) {
             // In case of a custom layout which doesn't remove and delete items, we ensure that
@@ -303 +269 @@
             }
         }
+        d->layout = 0;
+        delete temp;
     }
 
@@ -351 +319 @@
 
 /*!
+    \property QGraphicsWidget::sizePolicy
+    \brief the size policy for the widget
+    \sa sizePolicy(), setSizePolicy(), QWidget::sizePolicy()
+*/
+
+/*!
     \property QGraphicsWidget::geometry
     \brief the geometry of the widget
@@ -367 +341 @@
 {
     QGraphicsWidgetPrivate *wd = QGraphicsWidget::d_func();
-    QGraphicsLayoutItemPrivate *d = QGraphicsLayoutItem::d_ptr;
+    QGraphicsLayoutItemPrivate *d = QGraphicsLayoutItem::d_ptr.data();
     QRectF newGeom;
     QPointF oldPos = d->geom.topLeft();
@@ -380 +354 @@
         // setPos triggers ItemPositionChange, which can adjust position
         wd->inSetGeometry = 1;
-        wd->setPosHelper(newGeom.topLeft());
+        setPos(newGeom.topLeft());
         wd->inSetGeometry = 0;
         newGeom.moveTopLeft(pos());
@@ -441 +415 @@
 
 /*!
+    \property QGraphicsWidget::minimumSize
+    \brief the minimum size of the widget
+
+    \sa setMinimumSize(), minimumSize(), preferredSize, maximumSize
+*/
+
+/*!
+    \property QGraphicsWidget::preferredSize
+    \brief the preferred size of the widget
+
+    \sa setPreferredSize(), preferredSize(), minimumSize, maximumSize
+*/
+
+/*!
+    \property QGraphicsWidget::maximumSize
+    \brief the maximum size of the widget
+
+    \sa setMaximumSize(), maximumSize(), minimumSize, preferredSize
+*/
+
+/*!
     Sets the widget's contents margins to \a left, \a top, \a right and \a
     bottom.
@@ -460 +455 @@
     Q_D(QGraphicsWidget);
 
-    if (left == d->leftMargin
-        && top == d->topMargin
-        && right == d->rightMargin
-        && bottom == d->bottomMargin) {
+    if (!d->margins && left == 0 && top == 0 && right == 0 && bottom == 0)
         return;
-    }
-
-    d->leftMargin = left;
-    d->topMargin = top;
-    d->rightMargin = right;
-    d->bottomMargin = bottom;
+    d->ensureMargins();
+    if (left == d->margins[d->Left]
+        && top == d->margins[d->Top]
+        && right == d->margins[d->Right]
+        && bottom == d->margins[d->Bottom])
+        return;
+
+    d->margins[d->Left] = left;
+    d->margins[d->Top] = top;
+    d->margins[d->Right] = right;
+    d->margins[d->Bottom] = bottom;
 
     if (QGraphicsLayout *l = d->layout)
@@ -491 +488 @@
 {
     Q_D(const QGraphicsWidget);
+    if (left || top || right || bottom)
+        d->ensureMargins();
     if (left)
-        *left = d->leftMargin;
+        *left = d->margins[d->Left];
     if (top)
-        *top = d->topMargin;
+        *top = d->margins[d->Top];
     if (right)
-        *right = d->rightMargin;
+        *right = d->margins[d->Right];
     if (bottom)
-        *bottom = d->bottomMargin;
+        *bottom = d->margins[d->Bottom];
 }
 
@@ -514 +513 @@
 {
     Q_D(QGraphicsWidget);
-    bool unchanged = left == d->leftWindowFrameMargin && top == d->topWindowFrameMargin
-                     && right == d->rightWindowFrameMargin && bottom == d->bottomWindowFrameMargin;
+
+    if (!d->windowFrameMargins && left == 0 && top == 0 && right == 0 && bottom == 0)
+        return;
+    d->ensureWindowFrameMargins();
+    bool unchanged =
+        d->windowFrameMargins[d->Left] == left
+        && d->windowFrameMargins[d->Top] == top
+        && d->windowFrameMargins[d->Right] == right
+        && d->windowFrameMargins[d->Bottom] == bottom;
     if (d->setWindowFrameMargins && unchanged)
         return;
     if (!unchanged)
         prepareGeometryChange();
-    d->leftWindowFrameMargin = left;
-    d->topWindowFrameMargin = top;
-    d->rightWindowFrameMargin = right;
-    d->bottomWindowFrameMargin = bottom;
+    d->windowFrameMargins[d->Left] = left;
+    d->windowFrameMargins[d->Top] = top;
+    d->windowFrameMargins[d->Right] = right;
+    d->windowFrameMargins[d->Bottom] = bottom;
     d->setWindowFrameMargins = true;
 }
@@ -537 +543 @@
 {
     Q_D(const QGraphicsWidget);
+    if (left || top || right || bottom)
+        d->ensureWindowFrameMargins();
     if (left)
-        *left = d->leftWindowFrameMargin;
+        *left = d->windowFrameMargins[d->Left];
     if (top)
-        *top = d->topWindowFrameMargin;
+        *top = d->windowFrameMargins[d->Top];
     if (right)
-        *right = d->rightWindowFrameMargin;
+        *right = d->windowFrameMargins[d->Right];
     if (bottom)
-        *bottom = d->bottomWindowFrameMargin;
+        *bottom = d->windowFrameMargins[d->Bottom];
 }
 
@@ -578 +586 @@
 {
     Q_D(const QGraphicsWidget);
-    return geometry().adjusted(-d->leftWindowFrameMargin, -d->topWindowFrameMargin,
-                               d->rightWindowFrameMargin, d->bottomWindowFrameMargin);
+    return d->windowFrameMargins
+        ? geometry().adjusted(-d->windowFrameMargins[d->Left], -d->windowFrameMargins[d->Top],
+                              d->windowFrameMargins[d->Right], d->windowFrameMargins[d->Bottom])
+        : geometry();
 }
 
@@ -590 +600 @@
 {
     Q_D(const QGraphicsWidget);
-    return rect().adjusted(-d->leftWindowFrameMargin, -d->topWindowFrameMargin,
-                           d->rightWindowFrameMargin, d->bottomWindowFrameMargin);
+    return d->windowFrameMargins
+        ? rect().adjusted(-d->windowFrameMargins[d->Left], -d->windowFrameMargins[d->Top],
+                          d->windowFrameMargins[d->Right], d->windowFrameMargins[d->Bottom])
+        : rect();
 }
 
@@ -699 +711 @@
     QSizeF sh;
     if (d->layout) {
-        sh = d->layout->effectiveSizeHint(which, constraint);
-        sh += QSizeF(d->leftMargin + d->rightMargin, d->topMargin + d->bottomMargin);
+        QSizeF marginSize(0,0);
+        if (d->margins) {
+            marginSize = QSizeF(d->margins[d->Left] + d->margins[d->Right],
+                         d->margins[d->Top] + d->margins[d->Bottom]);
+        }
+        sh = d->layout->effectiveSizeHint(which, constraint - marginSize);
+        sh += marginSize;
     } else {
         switch (which) {
@@ -985 +1002 @@
     very important that subclasses call the base implementation.
 
-    For example, QGraphicsWidget uses ItemVisibleChange to deliver \l Show and
-    \l Hide events, ItemPositionHasChanged to deliver \l Move events, and
-    ItemParentChange both to deliver \l ParentChange events, and for managing
-    the focus chain.
-
-    \sa propertyChange()
+    \a change specifies the type of change, and \a value is the new value.
+
+    For example, QGraphicsWidget uses ItemVisibleChange to deliver
+    \l{QEvent::Show} {Show} and \l{QEvent::Hide}{Hide} events,
+    ItemPositionHasChanged to deliver \l{QEvent::Move}{Move} events,
+    and ItemParentChange both to deliver \l{QEvent::ParentChange}
+    {ParentChange} events, and for managing the focus chain.
+
+    QGraphicsWidget enables the ItemSendsGeometryChanges flag by default in
+    order to track position changes.
+
+    \sa QGraphicsItem::itemChange()
 */
 QVariant QGraphicsWidget::itemChange(GraphicsItemChange change, const QVariant &value)
@@ -1032 +1055 @@
     case ItemParentChange: {
         QGraphicsItem *parent = qVariantValue<QGraphicsItem *>(value);
-        d->fixFocusChainBeforeReparenting((parent && parent->isWidget()) ? static_cast<QGraphicsWidget *>(parent) : 0);
+        d->fixFocusChainBeforeReparenting((parent && parent->isWidget()) ? static_cast<QGraphicsWidget *>(parent) : 0, scene());
 
         // Deliver ParentAboutToChange.
@@ -1040 +1063 @@
     }
     case ItemParentHasChanged: {
-        // reset window type on parent change in order to automagically remove decorations etc.
-        Qt::WindowFlags wflags = d->windowFlags & ~Qt::WindowType_Mask;
-        d->adjustWindowFlags(&wflags);
-        setWindowFlags(wflags);
         // Deliver ParentChange.
         QEvent event(QEvent::ParentChange);
@@ -1108 +1127 @@
 bool QGraphicsWidget::sceneEvent(QEvent *event)
 {
-    return QCoreApplication::sendEvent(this, event) || QGraphicsItem::sceneEvent(event);
+    return QGraphicsItem::sceneEvent(event);
 }
 
@@ -1132 +1151 @@
         break;
     case QEvent::GraphicsSceneMouseMove:
-        if (d->grabbedSection != Qt::NoSection) {
+        d->ensureWindowData();
+        if (d->windowData->grabbedSection != Qt::NoSection) {
             d->windowFrameMouseMoveEvent(static_cast<QGraphicsSceneMouseEvent *>(event));
             event->accept();
@@ -1187 +1207 @@
     const qreal cornerMargin = 20;
     //### Not sure of this one, it should be the same value for all edges.
-    const qreal windowFrameWidth = d->leftWindowFrameMargin;
+    const qreal windowFrameWidth = d->windowFrameMargins
+        ? d->windowFrameMargins[d->Left] : 0;
 
     Qt::WindowFrameSection s = Qt::NoSection;
@@ -1213 +1234 @@
     if (s == Qt::NoSection) {
         QRectF r1 = r;
-        r1.setHeight(d->topWindowFrameMargin);
+        r1.setHeight(d->windowFrameMargins
+                     ? d->windowFrameMargins[d->Top] : 0);
         if (r1.contains(pos))
             s = Qt::TitleBarArea;
@@ -1223 +1245 @@
     \reimp
 
-    QGraphicsWidget handles the following events:
+    Handles the \a event.  QGraphicsWidget handles the following
+    events:
 
     \table   \o Event                 \o Usage
@@ -1279 +1302 @@
         polishEvent();
         d->polished = true;
-        d->updateFont(d->font);
+        if (!d->font.isCopyOf(QApplication::font()))
+            d->updateFont(d->font);
         break;
     case QEvent::WindowActivate:
     case QEvent::WindowDeactivate:
         update();
-        foreach (QGraphicsItem *child, childItems()) {
-            if (child->isWidget())
-                QApplication::sendEvent(static_cast<QGraphicsWidget *>(child), event);
-        }
         break;
         // Taken from QWidget::event
@@ -1321 +1341 @@
     case QEvent::GraphicsSceneMouseRelease:
     case QEvent::GraphicsSceneMouseDoubleClick:
-        if (d->hasDecoration() && d->grabbedSection != Qt::NoSection)
+        d->ensureWindowData();
+        if (d->hasDecoration() && d->windowData->grabbedSection != Qt::NoSection)
             return windowFrameEvent(event);
         break;
@@ -1358 +1379 @@
         // ### Don't unset if the margins are explicitly set.
         unsetWindowFrameMargins();
+        if (d->layout)
+            d->layout->invalidate();
     case QEvent::FontChange:
         update();
@@ -1596 +1619 @@
 /*!
     Returns the widgets window type.
+
+    \sa windowFlags(), isWindow(), isPanel()
 */
 Qt::WindowType QGraphicsWidget::windowType() const
@@ -1611 +1636 @@
 
     By default, this property contains no window flags.
+
+    Windows are panels. If you set the Qt::Window flag, the ItemIsPanel flag
+    will be set automatically. If you clear the Qt::Window flag, the
+    ItemIsPanel flag is also cleared. Note that the ItemIsPanel flag can be
+    set independently of Qt::Window.
+
+    \sa isWindow(), isPanel()
 */
 Qt::WindowFlags QGraphicsWidget::windowFlags() const
@@ -1624 +1656 @@
     bool wasPopup = (d->windowFlags & Qt::WindowType_Mask) == Qt::Popup;
 
+    d->adjustWindowFlags(&wFlags);
     d->windowFlags = wFlags;
     if (!d->setWindowFrameMargins)
         unsetWindowFrameMargins();
+
+    setFlag(ItemIsPanel, d->windowFlags & Qt::Window);
 
     bool isPopup = (d->windowFlags & Qt::WindowType_Mask) == Qt::Popup;
@@ -1636 +1671 @@
             d->scene->d_func()->addPopup(this);
     }
+
+    if (d->scene && d->scene->d_func()->allItemsIgnoreHoverEvents && d->hasDecoration()) {
+        d->scene->d_func()->allItemsIgnoreHoverEvents = false;
+        d->scene->d_func()->enableMouseTrackingOnViews();
+    }
 }
 
@@ -1646 +1686 @@
     currently has input focus, or that itself has input focus.
 
-    \sa QGraphicsScene::activeWindow(), QGraphicsScene::setActiveWindow()
+    \sa QGraphicsScene::activeWindow(), QGraphicsScene::setActiveWindow(), isActive()
 */
 bool QGraphicsWidget::isActiveWindow() const
 {
-    Q_D(const QGraphicsWidget);
-    if (!d->scene)
-        return false;
-    const QGraphicsWidget *w = window();
-    return (!w && d->scene->d_func()->activationRefCount) || (w && d->scene->activeWindow() == w);
+    return isActive();
 }
 
@@ -1663 +1699 @@
     This property is only used for windows.
 
-    By default, if no title has been set, this property contains an empty string.
+    By default, if no title has been set, this property contains an
+    empty string.
 */
 void QGraphicsWidget::setWindowTitle(const QString &title)
 {
     Q_D(QGraphicsWidget);
-    d->windowTitle = title;
+    d->ensureWindowData();
+    d->windowData->windowTitle = title;
 }
 QString QGraphicsWidget::windowTitle() const
 {
     Q_D(const QGraphicsWidget);
-    return d->windowTitle;
+    return d->windowData ? d->windowData->windowTitle : QString();
 }
 
@@ -1715 +1753 @@
     If this widget, a child or descendant of this widget currently has input
     focus, this function will return a pointer to that widget. If
-    no descendant has input focus, 0 is returned.
-
-    \sa QWidget::focusWidget()
+    no descendant widget has input focus, 0 is returned.
+
+    \sa QGraphicsItem::focusItem(), QWidget::focusWidget()
 */
 QGraphicsWidget *QGraphicsWidget::focusWidget() const
 {
     Q_D(const QGraphicsWidget);
-    return d->focusChild;
-}
-
+    if (d->subFocusItem && d->subFocusItem->d_ptr->isWidget)
+        return static_cast<QGraphicsWidget *>(d->subFocusItem);
+    return 0;
+}
 
 #ifndef QT_NO_SHORTCUT
@@ -1888 +1927 @@
     d->actions.insert(pos, action);
 
-    QActionPrivate *apriv = action->d_func();
-    apriv->graphicsWidgets.append(this);
+    if (index == -1) {
+        QActionPrivate *apriv = action->d_func();
+        apriv->graphicsWidgets.append(this);
+    }
 
     QActionEvent e(QEvent::ActionAdded, action, before);
@@ -2109 +2150 @@
     bar.QStyleOption::operator=(*option);
     d->initStyleOptionTitleBar(&bar);   // this clear flags in bar.state
-    if (d->buttonMouseOver)
+    d->ensureWindowData();
+    if (d->windowData->buttonMouseOver)
         bar.state |= QStyle::State_MouseOver;
     else
         bar.state &= ~QStyle::State_MouseOver;
-    if (d->buttonSunken)
+    if (d->windowData->buttonSunken)
         bar.state |= QStyle::State_Sunken;
     else
@@ -2248 +2290 @@
 /*!
     \fn const QObjectList &QGraphicsWidget::children() const
+    \internal
 
     This function returns the same value as QObject::children(). It's
@@ -2268 +2311 @@
             break;
         }
-        qDebug() << i++ << QString::number(uint(next), 16) << next->className() << next->data(0) << QString::fromAscii("focusItem:%1").arg(next->hasFocus() ? "1" : "0") << QLatin1String("next:") << next->d_func()->focusNext->data(0) << QLatin1String("prev:") << next->d_func()->focusPrev->data(0);
+        qDebug() << i++ << QString::number(uint(next), 16) << next->className() << next->data(0) << QString::fromAscii("focusItem:%1").arg(next->hasFocus() ? '1' : '0') << QLatin1String("next:") << next->d_func()->focusNext->data(0) << QLatin1String("prev:") << next->d_func()->focusPrev->data(0);
         if (visited.contains(next)) {
             qWarning("Already visited this node. However, I expected to dump until I found myself.");