uiuiui - fixed a bug which let running applications crash if switched style

from phase to any other. Reason was that in phase-style a special menubaritem-
drawroutine was set but not RESET to qte default if this style was removed
I'd implemented the unPolish routine and just set this callback to 0 (qt-default)
and now it works nice.

2 files changed, 21 insertions, 9 deletions

diff --git a/noncore/styles/phase/phasestyle.cpp b/noncore/styles/phase/phasestyle.cpp
index ba8c460..906ccee 100644
--- a/noncore/styles/phase/phasestyle.cpp
+++ b/noncore/styles/phase/phasestyle.cpp
@@ -315,12 +315,17 @@ void PhaseStyle::polish( QWidget* widget ) {
 //    else if (widget->inherits("QFrame") ) {
 //        widget->installEventFilter(this);
 //    }
 #endif
 }
 
+void PhaseStyle::unPolish( QWidget *w )
+{
+    QWindowsStyle::unPolish( w );
+}
+
 void PhaseStyle::polish( QPalette &pal ) {
     QWindowsStyle::polish( pal );
     // lighten up a bit, so the look is not so "crisp"
     if (QPixmap::defaultDepth() > 8) { // but not on low color displays
         pal.setColor(QPalette::Disabled, QColorGroup::Dark,
                      pal.color(QPalette::Disabled, QColorGroup::Dark).light(contrast));
@@ -334,12 +339,17 @@ void PhaseStyle::polish( QPalette &pal ) {
 void PhaseStyle::polish( QApplication* app ) {
     QWindowsStyle::polish( app );
 
     qt_set_draw_menu_bar_impl((QDrawMenuBarItemImpl)&PhaseStyle::drawMenuBarItem);
 }
 
+void PhaseStyle::unPolish( QApplication* app ) {
+    QWindowsStyle::unPolish(app);
+    qt_set_draw_menu_bar_impl ( 0 );
+}
+
 void PhaseStyle::drawPushButtonLabel (QPushButton *button, QPainter *painter) {
     bool active = button->isOn() || button->isDown();
     QRect r = pushButtonContentsRect( button );
     QColorGroup group = button->colorGroup();
     int x, y, w, h;
     r.rect( &x, &y, &w, &h );
@@ -628,21 +638,21 @@ void PhaseStyle::drawPopupMenuItem ( QPainter * p, bool checkable,
         p->fillRect(x, y, w, h, g.highlight() );
     else
         p->fillRect(x, y, w, h, g.background() );
 
     // draw seperator
     if (mi->isSeparator() ) {
-	p->setPen( g.dark() );
-	p->drawLine( x+8, y+1, x+w-8, y+1 );
+    p->setPen( g.dark() );
+    p->drawLine( x+8, y+1, x+w-8, y+1 );
 
         p->setPen( g.mid() );
         p->drawLine( x+8,   y, x+w-8, y );
         p->drawPoint(x+w,y+1);
 
-	p->setPen( g.midlight() );
-	p->drawLine( x+8, y-1, x+w-8, y-1 );
+    p->setPen( g.midlight() );
+    p->drawLine( x+8, y-1, x+w-8, y-1 );
         p->drawPoint(x+8, y );
         return;
     }
 
     // draw icon
     QIconSet::Mode mode;
@@ -773,15 +783,15 @@ void PhaseStyle::drawTab(QPainter* painter, const QTabBar* bar, QTab* tab,
 
 
     painter->save();
 
     // what position is the tab?
     if ((bar->count() == 1 ))
-	edge = true;
+    edge = true;
     else
-	edge = false;
+    edge = false;
 
     switch (QTabBar::Shape(bar->shape())) {
     case QTabBar::RoundedAbove:
     case QTabBar::TriangularAbove: {
         if (!selected) { // shorten
             y += 2; h -= 2;
diff --git a/noncore/styles/phase/phasestyle.h b/noncore/styles/phase/phasestyle.h
index cbaa534..ae53efe 100644
--- a/noncore/styles/phase/phasestyle.h
+++ b/noncore/styles/phase/phasestyle.h
@@ -37,15 +37,17 @@ class PhaseStyle : public QWindowsStyle
 {
     Q_OBJECT
 public:
     PhaseStyle();
     virtual ~PhaseStyle();
 
-    void polish( QWidget * );
-    void polish( QPalette& );
-    void polish( QApplication* );
+    virtual void polish( QWidget * );
+    virtual void polish( QPalette& );
+    virtual void polish( QApplication* a);
+    virtual void unPolish( QWidget * );
+    virtual void unPolish(QApplication *a);
 
 
     void drawCheckMark ( QPainter * p, int x, int y, int w,
                          int h, const QColorGroup & g,
                          bool act, bool dis );
     void drawArrow(QPainter *p, Qt::ArrowType type, bool down,