Data proxy implementation for bars.

Old QDataSet can be used with custom QOldDataProxy. This will be
removed entirely once we have a viable variant based proxy to use,
as it provides no real additional value over just using default
proxy directly.

Change-Id: Iee492152eec5d33b7a488053447fae6027409d71
Reviewed-by: Mika Salmela <mika.salmela@digia.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/src/datavis3d/data/labelitem_p.h b/src/datavis3d/data/labelitem_p.h
index 7a5f5f11..4d80642a 100644
--- a/src/datavis3d/data/labelitem_p.h
+++ b/src/datavis3d/data/labelitem_p.h
@@ -65,12 +65,16 @@ public:
     ~LabelItem();
 
     void setSize(const QSize &size);
-    QSize size();
+    QSize size() const;
     void setTextureId(GLuint textureId);
-    GLuint textureId();
+    GLuint textureId() const;
     void clear();
 
 private:
+    // LabelItem owns a global texture id resource, and deletes it at destructor,
+    // so we disable assignment operator as a safety measure. We don't use Q_DISABLE_COPY
+    // macro, because that also disables the default constructor, which we need.
+    LabelItem &operator=(const LabelItem &);
     QSize m_size;
     GLuint m_textureId;
 };