X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/828c8f98d5346c58b8fa75b043fba7a2a007b337..bced985eb03eb774a1e5337ed8b1fa7d662d11a3:/samples/docview/doc.cpp

diff --git a/samples/docview/doc.cpp b/samples/docview/doc.cpp
index f43bbb1c13..4892856fe0 100644
--- a/samples/docview/doc.cpp
+++ b/samples/docview/doc.cpp
@@ -176,6 +176,24 @@ DocumentIstream& DoodleSegment::LoadObject(DocumentIstream& istream)
 
 IMPLEMENT_CLASS(wxTextDocument, wxDocument)
 
+bool wxTextDocument::OnCreate(const wxString& path, long flags)
+{
+    if ( !wxDocument::OnCreate(path, flags) )
+        return false;
+
+    // subscribe to changes in the text control to update the document state
+    // when it's modified
+    GetTextCtrl()->Connect
+    (
+        wxEVT_COMMAND_TEXT_UPDATED,
+        wxCommandEventHandler(wxTextDocument::OnTextChange),
+        NULL,
+        this
+    );
+
+    return true;
+}
+
 // Since text windows have their own method for saving to/loading from files,
 // we override DoSave/OpenDocument instead of Save/LoadObject
 bool wxTextDocument::DoSaveDocument(const wxString& filename)
@@ -185,7 +203,13 @@ bool wxTextDocument::DoSaveDocument(const wxString& filename)
 
 bool wxTextDocument::DoOpenDocument(const wxString& filename)
 {
-    return GetTextCtrl()->LoadFile(filename);
+    if ( !GetTextCtrl()->LoadFile(filename) )
+        return false;
+
+    // we're not modified by the user yet
+    Modify(false);
+
+    return true;
 }
 
 bool wxTextDocument::IsModified() const
@@ -205,6 +229,13 @@ void wxTextDocument::Modify(bool modified)
     }
 }
 
+void wxTextDocument::OnTextChange(wxCommandEvent& event)
+{
+    Modify(true);
+
+    event.Skip();
+}
+
 // ----------------------------------------------------------------------------
 // TextEditDocument implementation
 // ----------------------------------------------------------------------------