Fix ARGB mode stippled focus rectangle showing underlying window contents

Fix TQColor not processing alpha channel in ARGB mode
(cherry picked from commit 2a85fcbb5c)

src/kernel/qcolor_x11.cpp

@@ -407,8 +407,14 @@ uint QColor::alloc( int screen )
 	b = sd->blue_shift  > 0 ? b << sd->blue_shift  : b >> -sd->blue_shift;
 	pix = (b & sd->blue_mask) | (g & sd->green_mask) | (r & sd->red_mask)
 	      | ~(sd->blue_mask | sd->green_mask | sd->red_mask);
-	if ( screen == QPaintDevice::x11AppScreen() )
+	if (QPaintDevice::x11AppDepth(screen) == 32) {
+	    int a = qAlpha(d.argb);
+	    pix = pix & 0x00ffffff;
+	    pix = pix | (a << 24);
+	}
+	if ( screen == QPaintDevice::x11AppScreen() ) {
 	    d.d32.pix = pix;
+	}
 	return pix;
     }
     QColorData *c = sd->colorDict->find( (long)(d.argb) );

src/kernel/qpainter_x11.cpp

@@ -1842,16 +1842,24 @@ void QPainter::drawWinFocusRect( int x, int y, int w, int h,
     RasterOp old_rop = (RasterOp)rop;
 
     if ( xorPaint ) {
-        if ( QColor::numBitPlanes() <= 8 )
+        if ( QColor::numBitPlanes() <= 8 ) {
             setPen( QPen(color1, 0, Qt::FineDotLine) );
-        else
+        }
+        else if ( QColor::numBitPlanes() <= 8 ) {
             setPen( QPen(white, 0, Qt::FineDotLine) );
+        }
+        else {
+            setPen( QPen(QColor(qRgba(255,255,255,0)), 0, Qt::FineDotLine) );
+        }
         setRasterOp( XorROP );
-    } else {
-        if ( qGray( bgColor.rgb() ) < 128 )
+    }
+    else {
+        if ( qGray( bgColor.rgb() ) < 128 ) {
             setPen( QPen(white, 0, Qt::FineDotLine) );
-        else
+        }
+        else {
             setPen( QPen(black, 0, Qt::FineDotLine) );
+        }
     }
 
     if ( testf(ExtDev|VxF|WxF) ) {
@@ -1876,6 +1884,7 @@ void QPainter::drawWinFocusRect( int x, int y, int w, int h,
     XSetLineAttributes( dpy, gc, 1, LineOnOffDash, CapButt, JoinMiter );
 
     XDrawRectangle( dpy, hd, gc, x, y, w-1, h-1 );
+
     XSetLineAttributes( dpy, gc, 0, LineSolid, CapButt, JoinMiter );
     setRasterOp( old_rop );
     setPen( old_pen );