Remove one hack of the QTipLabel hack.

This code used two hacks: it created a class with
metaObject()->className() == "QTipLabel" to fool the code in Qt into
applying the style properly to this class.

But it did that by creating a class called QTipLabel. This works as
long as the class in Qt is hidden by symbol visibility. When symbol
visibility is disabled (for whatever reason), then Creator simply
crashes due to size mismatches and memory corruptions (virtual tables,
etc.)

This patch makes the class be called TextEditor::Internal::QTipLabel,
but fools moc into thinking it isn't.

A proper solution would be to simply override the meta object.

Signed-off-by: Leandro Melo <leandro.melo@nokia.com>

src/plugins/texteditor/tooltip/tipfactory.cpp

@@ -40,7 +40,7 @@ TipFactory::TipFactory()
 TipFactory::~TipFactory()
 {}
 
-QTipLabel *TipFactory::createTip(const TipContent &content, QWidget *w)
+Internal::QTipLabel *TipFactory::createTip(const TipContent &content, QWidget *w)
 {
     QTipLabel *tip = 0;
     if (content.typeId() == TextContent::TEXT_CONTENT_ID)

src/plugins/texteditor/tooltip/tipfactory.h

@@ -32,15 +32,12 @@
 
 #include <QtGui/QWidget>
 
-QT_BEGIN_NAMESPACE
-class QTipLabel;
-QT_END_NAMESPACE
-
 namespace TextEditor {
 
 class TipContent;
 
 namespace Internal {
+class QTipLabel;
 
 class TipFactory
 {

src/plugins/texteditor/tooltip/tips.cpp

@@ -41,8 +41,8 @@
 #include <QtGui/QStylePainter>
 #include <QtGui/QStyleOptionFrame>
 
-using namespace TextEditor;
-using namespace Internal;
+namespace TextEditor {
+    namespace Internal {
 
 namespace {
     // @todo: Reuse...
@@ -59,8 +59,6 @@ namespace {
     }
 }
 
-QT_BEGIN_NAMESPACE
-
 QTipLabel::QTipLabel(QWidget *parent) :
     QLabel(parent, Qt::ToolTip | Qt::BypassGraphicsProxyWidget),
     m_tipContent(0)
@@ -83,8 +81,6 @@ void QTipLabel::setContent(const TipContent &content)
 const TipContent &QTipLabel::content() const
 { return *m_tipContent; }
 
-QT_END_NAMESPACE
-
 ColorTip::ColorTip(QWidget *parent) : QTipLabel(parent)
 {
     resize(QSize(40, 40));
@@ -183,3 +179,9 @@ void TextTip::resizeEvent(QResizeEvent *event)
 
     QLabel::resizeEvent(event);
 }
+
+// need to include it here to force it to be inside the namespaces
+#include "moc_tips.cpp"
+
+} // namespace Internal
+} // namespace TextEditor

src/plugins/texteditor/tooltip/tips.h

@@ -38,7 +38,10 @@ namespace TextEditor {
 class TipContent;
 }
 
-QT_BEGIN_NAMESPACE
+#ifndef Q_MOC_RUN
+namespace TextEditor {
+namespace Internal {
+#endif
 
 // Please do not change the name of this class. Detailed comments in tooltip.h.
 class QTipLabel : public QLabel
@@ -60,11 +63,6 @@ private:
     TextEditor::TipContent *m_tipContent;
 };
 
-QT_END_NAMESPACE
-
-namespace TextEditor {
-namespace Internal {
-
 class ColorTip : public QTipLabel
 {
     Q_OBJECT
@@ -96,7 +94,9 @@ private:
     virtual void resizeEvent(QResizeEvent *event);
 };
 
+#ifndef Q_MOC_RUN
 } // namespace Internal
 } // namespace TextEditor
+#endif
 
 #endif // TIPS_H

src/plugins/texteditor/tooltip/tooltip.h

@@ -49,13 +49,13 @@
 QT_BEGIN_NAMESPACE
 class QPoint;
 class QWidget;
-class QTipLabel;
 QT_END_NAMESPACE
 
 namespace TextEditor {
 
 namespace Internal {
 class TipFactory;
+class QTipLabel;
 }
 
 class TipContent;
@@ -93,7 +93,7 @@ private:
     void hideTipWithDelay();
 
     Internal::TipFactory *m_tipFactory;
-    QTipLabel *m_tip;
+    Internal::QTipLabel *m_tip;
     QWidget *m_widget;
     QRect m_rect;
     QTimer m_showTimer;