Merge branch '4.6'

Conflicts:
	src/corelib/io/qfsfileengine.cpp
	src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
	src/opengl/opengl.pro

4 files changed, 17 insertions, 7 deletions

diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 3ae14ca..7c320da 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -5230,6 +5230,8 @@ QInputContext *QApplication::inputContext() const
 {
     Q_D(const QApplication);
     Q_UNUSED(d);// only static members being used.
+    if (QApplicationPrivate::is_app_closing)
+        return d->inputContext;
 #ifdef Q_WS_X11
     if (!X11)
         return 0;
diff --git a/src/gui/kernel/qboxlayout.cpp b/src/gui/kernel/qboxlayout.cpp
index d965933..fd16861 100644
--- a/src/gui/kernel/qboxlayout.cpp
+++ b/src/gui/kernel/qboxlayout.cpp
@@ -830,9 +830,11 @@ void QBoxLayout::setGeometry(const QRect &r)
         if (d->hasHfw && !horz(d->dir)) {
             for (int i = 0; i < n; i++) {
                 QBoxLayoutItem *box = d->list.at(i);
-                if (box->item->hasHeightForWidth())
+                if (box->item->hasHeightForWidth()) {
+                    int width = qBound(box->item->minimumSize().width(), s.width(), box->item->maximumSize().width());
                     a[i].sizeHint = a[i].minimumSize =
-                                    box->item->heightForWidth(s.width());
+                                    box->item->heightForWidth(width);
+                }
             }
         }
 
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index cbc3fe1..d28aa7e 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -11879,16 +11879,20 @@ void QWidget::ungrabGesture(Qt::GestureType gesture)
     mouse when a mouse button is pressed and keeps it until the last
     button is released.
 
-    Note that only visible widgets can grab mouse input. If
-    isVisible() returns false for a widget, that widget cannot call
-    grabMouse().
+    \note Only visible widgets can grab mouse input. If isVisible()
+    returns false for a widget, that widget cannot call grabMouse().
+
+    \note \bold{(Mac OS X developers)} For \e Cocoa, calling
+    grabMouse() on a widget only works when the mouse is inside the
+    frame of that widget.  For \e Carbon, it works outside the widget's
+    frame as well, like for Windows and X11.
 
     \sa releaseMouse() grabKeyboard() releaseKeyboard()
 */
 
 /*!
     \fn void QWidget::grabMouse(const QCursor &cursor)
-    \overload
+    \overload grabMouse()
 
     Grabs the mouse input and changes the cursor shape.
 
@@ -11898,6 +11902,8 @@ void QWidget::ungrabGesture(Qt::GestureType gesture)
 
     \warning Grabbing the mouse might lock the terminal.
 
+    \note \bold{(Mac OS X developers)} See the note in QWidget::grabMouse().
+
     \sa releaseMouse(), grabKeyboard(), releaseKeyboard(), setCursor()
 */
 
diff --git a/src/gui/kernel/qwidget_x11.cpp b/src/gui/kernel/qwidget_x11.cpp
index 0bc9cbc..f9db485 100644
--- a/src/gui/kernel/qwidget_x11.cpp
+++ b/src/gui/kernel/qwidget_x11.cpp
@@ -1084,7 +1084,7 @@ void QWidget::destroy(bool destroyWindow, bool destroySubWindows)
         } else {
             // release previous focus information participating with
             // preedit preservation of qic
-            QInputContext *qic = inputContext();
+            QInputContext *qic = QApplicationPrivate::inputContext;
             if (qic)
                 qic->widgetDestroyed(this);
         }