inputmethods/xim: fix incorrect fontset ref counting

- rename fontsetRefCount -> fontsetCacheRefCount
- move fontsetCacheRefCount to constructor as setHolderWidget() could be
  called more than once

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>
(cherry picked from commit e1bb179fde)

plugins/src/inputmethods/xim/qximinputcontext_x11.cpp

@@ -116,7 +116,7 @@ extern "C" {
    much as possible
 */
 static XFontSet fontsetCache[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
-static int fontsetRefCount = 0;
+static int fontsetCacheRefCount = 0;
 
 static const char * const fontsetnames[] = {
     "-*-fixed-medium-r-*-*-16-*,-*-*-medium-r-*-*-16-*",
@@ -345,6 +345,8 @@ TQXIMInputContext::TQXIMInputContext()
 	TQXIMInputContext::init_xim();
 
 #if !defined(TQT_NO_XIM)
+    fontsetCacheRefCount++;
+
     if( ! ximContextList )
 	ximContextList = new TQPtrList<TQXIMInputContext>;
     ximContextList->append( this );
@@ -360,7 +362,6 @@ void TQXIMInputContext::setHolderWidget( TQWidget *widget )
     TQInputContext::setHolderWidget( widget );
 
 #if !defined(TQT_NO_XIM)
-    fontsetRefCount++;
     if (! qt_xim) {
 	tqWarning("TQInputContext: no input method context available");
 	return;
@@ -441,7 +442,7 @@ TQXIMInputContext::~TQXIMInputContext()
     if (ic)
 	XDestroyIC((XIC) ic);
 
-    if ( --fontsetRefCount == 0 ) {
+    if ( --fontsetCacheRefCount == 0 ) {
 	Display *dpy = TQPaintDevice::x11AppDisplay();
 	for ( int i = 0; i < 8; i++ ) {
 	    if ( fontsetCache[i] && fontsetCache[i] != (XFontSet)-1 ) {