X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/97c79de27c368de18afab3ca655bc48a4d53fc30..84bfc0d503636bd4f64699d7b1bf45e201d787ff:/include/wx/clipbrd.h

diff --git a/include/wx/clipbrd.h b/include/wx/clipbrd.h
index 47f0af66b5..e7ab30b41e 100644
--- a/include/wx/clipbrd.h
+++ b/include/wx/clipbrd.h
@@ -46,6 +46,9 @@ public:
     // close the clipboard after Add/SetData() and GetData()
     virtual void Close() = 0;
 
+    // query whether the clipboard is opened
+    virtual bool IsOpened() const = 0;
+
     // add to the clipboard data
     //
     // NB: the clipboard owns the pointer and will delete it, so data must be
@@ -102,6 +105,36 @@ public:
 // The global clipboard object
 WXDLLEXPORT_DATA(extern wxClipboard *) wxTheClipboard;
 
+// ----------------------------------------------------------------------------
+// helpful class for opening the clipboard and automatically closing it
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxClipboardLocker
+{
+public:
+    wxClipboardLocker(wxClipboard *clipboard = (wxClipboard *)NULL)
+    {
+        m_clipboard = clipboard ? clipboard : wxTheClipboard;
+        if ( m_clipboard )
+        {
+            m_clipboard->Open();
+        }
+    }
+
+    bool operator!() const { return !m_clipboard->IsOpened(); }
+
+    ~wxClipboardLocker()
+    {
+        if ( m_clipboard )
+        {
+            m_clipboard->Close();
+        }
+    }
+
+private:
+    wxClipboard *m_clipboard;
+};
+
 #endif // wxUSE_CLIPBOARD
 
 #endif // _WX_CLIPBRD_H_BASE_