X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/35f5a520e2e918dc53baa8c65468fc12416ca219..64ea838d8f4d1853b7d850db93ee565e901d099a:/src/common/cmdproc.cpp

diff --git a/src/common/cmdproc.cpp b/src/common/cmdproc.cpp
index f59886d0a5..5e8a253ccb 100644
--- a/src/common/cmdproc.cpp
+++ b/src/common/cmdproc.cpp
@@ -62,8 +62,8 @@ wxCommandProcessor::wxCommandProcessor(int maxCommands)
 #endif // wxUSE_MENUS
 
 #if wxUSE_ACCEL
-    m_undoAccelerator = '\t' + wxAcceleratorEntry(wxACCEL_CMD, 'Z').ToString();
-    m_redoAccelerator = '\t' + wxAcceleratorEntry(wxACCEL_CMD, 'Y').ToString();
+    m_undoAccelerator = '\t' + wxAcceleratorEntry(wxACCEL_CTRL, 'Z').ToString();
+    m_redoAccelerator = '\t' + wxAcceleratorEntry(wxACCEL_CTRL, 'Y').ToString();
 #endif // wxUSE_ACCEL
 
     m_lastSavedCommand =
@@ -328,4 +328,28 @@ void wxCommandProcessor::ClearCommands()
     m_lastSavedCommand = wxList::compatibility_iterator();
 }
 
+bool wxCommandProcessor::IsDirty() const
+{
+    if ( m_commands.empty() )
+    {
+        // If we have never been modified, we can't be dirty.
+        return false;
+    }
+
+    if ( !m_lastSavedCommand )
+    {
+        // If we have been modified but have never been saved, we're dirty.
+        return true;
+    }
+
+    if ( !m_currentCommand )
+    {
+        // This only happens if all commands were undone after saving the
+        // document: we're dirty then.
+        return true;
+    }
+
+    // Finally if both iterators are valid, we may just compare them.
+    return m_currentCommand != m_lastSavedCommand;
+}