1 files changed, 31 insertions, 14 deletions

diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 250cc35..5e2dfb6 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -843,8 +843,7 @@ OSStatus QWidgetPrivate::qt_window_event(EventHandlerCallRef er, EventRef event,
             extern QPointer<QWidget> qt_button_down; //qapplication_mac.cpp
             qt_button_down = 0;
         } else if(ekind == kEventWindowToolbarSwitchMode) {
-            QToolBarChangeEvent ev(!(GetCurrentKeyModifiers() & cmdKey));
-            QApplication::sendSpontaneousEvent(widget, &ev);
+            macSendToolbarChangeEvent(widget);
             HIToolbarRef toolbar;
             if (GetWindowToolbar(wid, &toolbar) == noErr) {
                 if (toolbar) {
@@ -1369,6 +1368,14 @@ OSStatus QWidgetPrivate::qt_widget_event(EventHandlerCallRef er, EventRef event,
                         // Set dropWidget to zero, so qt_mac_dnd_event
                         // doesn't get called a second time below:
                         dropWidget = 0;
+                    } else if (ekind == kEventControlDragLeave) {
+                        dropWidget = QDragManager::self()->currentTarget();
+                        if (dropWidget) {
+                            dropWidget->d_func()->qt_mac_dnd_event(kEventControlDragLeave, drag);
+                        }
+                        // Set dropWidget to zero, so qt_mac_dnd_event
+                        // doesn't get called a second time below:
+                        dropWidget = 0;
                     }
                 }
             }
@@ -1513,12 +1520,16 @@ void QWidgetPrivate::toggleDrawers(bool visible)
  *****************************************************************************/
 bool QWidgetPrivate::qt_mac_update_sizer(QWidget *w, int up)
 {
+    // I'm not sure what "up" is
     if(!w || !w->isWindow())
         return false;
 
     QTLWExtra *topData = w->d_func()->topData();
     QWExtra *extraData = w->d_func()->extraData();
-    topData->resizer += up;
+    // topData->resizer is only 4 bits, so subtracting -1 from zero causes bad stuff
+    // to happen, prevent that here (you really want the thing hidden).
+    if (up >= 0 || topData->resizer != 0)
+        topData->resizer += up;
     OSWindowRef windowRef = qt_mac_window_for(OSViewRef(w->winId()));
     {
 #ifndef QT_MAC_USE_COCOA
@@ -1531,7 +1542,6 @@ bool QWidgetPrivate::qt_mac_update_sizer(QWidget *w, int up)
     bool remove_grip = (topData->resizer || (w->windowFlags() & Qt::FramelessWindowHint)
                         || (extraData->maxw && extraData->maxh &&
                             extraData->maxw == extraData->minw && extraData->maxh == extraData->minh));
-
 #ifndef QT_MAC_USE_COCOA
     WindowAttributes attr;
     GetWindowAttributes(windowRef, &attr);
@@ -3815,8 +3825,6 @@ void QWidgetPrivate::setWSGeometry(bool dontShow, const QRect &oldRect)
       Qt coordinate system for parent
       X coordinate system for parent (relative to parent's wrect).
     */
-    QRect validRange(-XCOORD_MAX,-XCOORD_MAX, 2*XCOORD_MAX, 2*XCOORD_MAX);
-    QRect wrectRange(-WRECT_MAX,-WRECT_MAX, 2*WRECT_MAX, 2*WRECT_MAX);
     QRect wrect;
     //xrect is the X geometry of my X widget. (starts out in  parent's Qt coord sys, and ends up in parent's X coord sys)
     QRect xrect = data.crect;
@@ -3838,6 +3846,7 @@ void QWidgetPrivate::setWSGeometry(bool dontShow, const QRect &oldRect)
             parentWRect = QRect(tmpRect.origin.x, tmpRect.origin.y,
                                 tmpRect.size.width, tmpRect.size.height);
         } else {
+            const QRect wrectRange(-WRECT_MAX,-WRECT_MAX, 2*WRECT_MAX, 2*WRECT_MAX);
             parentWRect = wrectRange;
         }
     } else {
@@ -3893,15 +3902,24 @@ void QWidgetPrivate::setWSGeometry(bool dontShow, const QRect &oldRect)
             }
         }
 
+        const QRect validRange(-XCOORD_MAX,-XCOORD_MAX, 2*XCOORD_MAX, 2*XCOORD_MAX);
         if (!validRange.contains(xrect)) {
             // we are too big, and must clip
-            xrect &=wrectRange;
+            QPoint screenOffset(0, 0); // offset of the part being on screen
+            const QWidget *parentWidget = q->parentWidget();
+            while (parentWidget && !parentWidget->isWindow()) {
+                screenOffset -= parentWidget->data->crect.topLeft();
+                parentWidget = parentWidget->parentWidget();
+            }
+            QRect cropRect(screenOffset.x() - WRECT_MAX,
+                           screenOffset.y() - WRECT_MAX,
+                           2*WRECT_MAX,
+                           2*WRECT_MAX);
+
+            xrect &=cropRect;
             wrect = xrect;
-            wrect.translate(-data.crect.topLeft());
-            //parent's X coord system is equal to parent's Qt coord
-            //sys, so we don't need to map xrect.
+            wrect.translate(-data.crect.topLeft()); // translate wrect in my Qt coordinates
         }
-
     }
 
     // unmap if we are outside the valid window system coord system
@@ -3941,10 +3959,9 @@ void QWidgetPrivate::setWSGeometry(bool dontShow, const QRect &oldRect)
 
     qt_mac_update_widget_posisiton(q, oldRect, xrect);
 
-    if  (jump) {
-        updateSystemBackground();
+    if  (jump)
         q->update();
-    }
+
     if (mapWindow && !dontShow) {
         q->setAttribute(Qt::WA_Mapped);
 #ifndef QT_MAC_USE_COCOA