Changeset 128 for trunk/src/gui/kernel/qwidget_pm.cpp

Timestamp:

Aug 26, 2009, 9:00:24 PM (16 years ago)

Author:

Dmitry A. Kuminov

Message:

gui: Implemented QWidget::setParent_sys(). Many examples started to launch now.

File:

• trunk/src/gui/kernel/qwidget_pm.cpp (modified) (1 diff)

trunk/src/gui/kernel/qwidget_pm.cpp

@@ -1254 +1254 @@
 }
 
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 void QWidgetPrivate::setParent_sys(QWidget *parent, Qt::WindowFlags f)
 {
-    // @todo implement
+    Q_Q(QWidget);
+    bool wasCreated = q->testAttribute(Qt::WA_WState_Created);
+    if (q->isVisible() && q->parentWidget() && parent != q->parentWidget())
+        q->parentWidget()->d_func()->invalidateBuffer(q->geometry());
+
+    WId old_fid = frameWinId();
+
+    // hide and reparent our own window away. Otherwise we might get
+    // destroyed when emitting the child remove event below. See QWorkspace.
+    if (q->isVisible() && old_fid != NULLHANDLE) {
+        qt_WinSetWindowPos(old_fid, 0, 0, 0, 0, 0, SWP_HIDE);
+        WinSetParent(old_fid, HWND_OBJECT, FALSE);
+        WinSetOwner(old_fid, NULLHANDLE);
+    }
+    bool dropSiteWasRegistered = false;
+    if (q->testAttribute(Qt::WA_DropSiteRegistered)) {
+        dropSiteWasRegistered = true;
+        q->setAttribute(Qt::WA_DropSiteRegistered, false); // ole dnd unregister (we will register again below)
+    }
+
+    if ((q->windowType() == Qt::Desktop))
+        old_fid = NULLHANDLE;
+    setWinId(0);
+
+    QObjectPrivate::setParent_helper(parent);
+    bool explicitlyHidden = q->testAttribute(Qt::WA_WState_Hidden) && q->testAttribute(Qt::WA_WState_ExplicitShowHide);
+
+    data.window_flags = f;
+    data.fstrut_dirty = true;
+    q->setAttribute(Qt::WA_WState_Created, false);
+    q->setAttribute(Qt::WA_WState_Visible, false);
+    q->setAttribute(Qt::WA_WState_Hidden, false);
+    adjustFlags(data.window_flags, q);
+    // keep compatibility with previous versions, we need to preserve the created state
+    // (but we recreate the winId for the widget being reparented, again for compatibility)
+    if (wasCreated || (!q->isWindow() && parent->testAttribute(Qt::WA_WState_Created)))
+        createWinId();
+    if (q->isWindow() || (!parent || parent->isVisible()) || explicitlyHidden)
+        q->setAttribute(Qt::WA_WState_Hidden);
+    q->setAttribute(Qt::WA_WState_ExplicitShowHide, explicitlyHidden);
+
+    if (wasCreated) {
+        reparentChildren();
+    }
+
+    if (extra && !extra->mask.isEmpty()) {
+        QRegion r = extra->mask;
+        extra->mask = QRegion();
+        q->setMask(r);
+    }
+    if (extra && extra->topextra && !extra->topextra->caption.isEmpty()) {
+        setWindowIcon_sys(true);
+        setWindowTitle_helper(extra->topextra->caption);
+    }
+    if (old_fid != NULLHANDLE)
+        qt_WinDestroyWindow(old_fid);
+
+    if (q->testAttribute(Qt::WA_AcceptDrops) || dropSiteWasRegistered
+        || (!q->isWindow() && q->parentWidget() && q->parentWidget()->testAttribute(Qt::WA_DropSiteRegistered)))
+        q->setAttribute(Qt::WA_DropSiteRegistered, true);
+
+    invalidateBuffer(q->rect());
 }