Changeset 846 for trunk/src/gui/styles/qstylehelper_p.h

Timestamp:

May 5, 2011, 5:36:53 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/styles/qstylehelper_p.h (modified) (3 diffs)

trunk/src/gui/styles/qstylehelper_p.h

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
@@ -42 +42 @@
 #include <QtCore/qglobal.h>
 #include <QtCore/qpoint.h>
+#include <QtCore/qstring.h>
 #include <QtGui/qpolygon.h>
+#include <QtCore/qstringbuilder.h>
 
 #ifndef QSTYLEHELPER_P_H
@@ -80 +82 @@
 }
 
+// internal helper. Converts an integer value to an unique string token
+template <typename T>
+        struct HexString
+{
+    inline HexString(const T t)
+        : val(t)
+    {}
+
+    inline void write(QChar *&dest) const
+    {
+        const ushort hexChars[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+        const char *c = reinterpret_cast<const char *>(&val);
+        for (uint i = 0; i < sizeof(T); ++i) {
+            *dest++ = hexChars[*c & 0xf];
+            *dest++ = hexChars[(*c & 0xf0) >> 4];
+            ++c;
+        }
+    }
+    const T val;
+};
+
+// specialization to enable fast concatenating of our string tokens to a string
+template <typename T>
+        struct QConcatenable<HexString<T> >
+{
+    typedef HexString<T> type;
+    enum { ExactSize = true };
+    static int size(const HexString<T> &) { return sizeof(T) * 2; }
+    static inline void appendTo(const HexString<T> &str, QChar *&out) { str.write(out); }
+};
+
 QT_END_NAMESPACE