Qt3 compilation fix

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/dependencies/tqtinterface@1162810 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 106 insertions, 0 deletions

diff --git a/qtinterface/tqvariant.cpp b/qtinterface/tqvariant.cpp
index 3672da7..981922e 100644
--- a/qtinterface/tqvariant.cpp
+++ b/qtinterface/tqvariant.cpp
@@ -21,3 +21,109 @@ Boston, MA 02110-1301, USA.
 
 #include <tqt.h>
 #include <tqvariant.h>
+
+#include <Qt/qbitmap.h>
+
+#ifdef USE_QT4
+
+// This is taken straight from <private/qvariant_p.h>
+#ifdef Q_CC_SUN // Sun CC picks the wrong overload, so introduce awful hack
+
+template <typename T>
+inline T *v_cast(const QVariant::Private *nd, T * = 0)
+{
+    QVariant::Private *d = const_cast<QVariant::Private *>(nd);
+    return ((sizeof(T) > sizeof(QVariant::Private::Data))
+            ? static_cast<T *>(d->data.shared->ptr)
+            : static_cast<T *>(static_cast<void *>(&d->data.c)));
+}
+
+#else // every other compiler in this world
+
+template <typename T>
+inline const T *v_cast(const QVariant::Private *d, T * = 0)
+{
+    return ((sizeof(T) > sizeof(QVariant::Private::Data))
+            ? static_cast<const T *>(d->data.shared->ptr)
+            : static_cast<const T *>(static_cast<const void *>(&d->data.c)));
+}
+
+template <typename T>
+inline T *v_cast(QVariant::Private *d, T * = 0)
+{
+    return ((sizeof(T) > sizeof(QVariant::Private::Data))
+            ? static_cast<T *>(d->data.shared->ptr)
+            : static_cast<T *>(static_cast<void *>(&d->data.c)));
+}
+
+#endif
+
+template <typename T>
+inline T qVariantToHelper(const QVariant::Private &d, QVariant::Type t,
+                          const QVariant::Handler *handler, T * = 0)
+{
+    if (d.type == t)
+        return *v_cast<T>(&d);
+
+    T ret;
+    handler->convert(&d, t, &ret, 0);
+    return ret;
+}
+
+QFont QVariant::toFont() const {
+	return qVariantToHelper<QFont>(d, Font, handler);
+}
+
+QColor QVariant::toColor() const {
+	return qVariantToHelper<QColor>(d, Color, handler);
+}
+
+QCursor QVariant::toCursor() const {
+	return qVariantToHelper<QCursor>(d, Cursor, handler);
+}
+
+QBitmap QVariant::toBitmap() const {
+	return qVariantToHelper<QBitmap>(d, Bitmap, handler);
+}
+
+Q3PointArray QVariant::toPointArray() const {
+	return qVariantToHelper<Q3PointArray>(d, PointArray, handler);
+}
+
+QRegion QVariant::toRegion() const {
+	return qVariantToHelper<QRegion>(d, Region, handler);
+}
+
+QPixmap QVariant::toPixmap() const {
+	return qVariantToHelper<QPixmap>(d, Pixmap, handler);
+}
+
+QImage QVariant::toImage() const {
+	return qVariantToHelper<QImage>(d, Image, handler);
+}
+
+QBrush QVariant::toBrush() const {
+	return qVariantToHelper<QBrush>(d, Brush, handler);
+}
+
+QPalette QVariant::toPalette() const {
+	return qVariantToHelper<QPalette>(d, Palette, handler);
+}
+
+QColorGroup QVariant::toColorGroup() const {
+	return qVariantToHelper<QColorGroup>(d, ColorGroup, handler);
+}
+
+QIconSet QVariant::toIconSet() const {
+	return qVariantToHelper<QIconSet>(d, IconSet, handler);
+}
+
+QFont QVariant::asFont() {
+	return toFont();
+}
+
+QColor QVariant::asColor() {
+	return toColor();
+}
+
+#endif // USE_QT4
\ No newline at end of file