From 112d941fe1e012b646386ae9ce734eaf2b403663 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Fri, 22 May 2009 22:52:31 +0000
Subject: [PATCH] mark the document as modified when its text control is
 (closes #10826)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60720 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 samples/docview/doc.cpp | 25 +++++++++++++++++++++++++
 samples/docview/doc.h   |  5 +++++
 2 files changed, 30 insertions(+)

diff --git a/samples/docview/doc.cpp b/samples/docview/doc.cpp
index f43bbb1c13..d6f77344e5 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)
@@ -205,6 +223,13 @@ void wxTextDocument::Modify(bool modified)
     }
 }
 
+void wxTextDocument::OnTextChange(wxCommandEvent& event)
+{
+    Modify(true);
+
+    event.Skip();
+}
+
 // ----------------------------------------------------------------------------
 // TextEditDocument implementation
 // ----------------------------------------------------------------------------
diff --git a/samples/docview/doc.h b/samples/docview/doc.h
index 8365009d5c..dc6dc5e2a3 100644
--- a/samples/docview/doc.h
+++ b/samples/docview/doc.h
@@ -164,6 +164,9 @@ class wxTextDocument : public wxDocument
 {
 public:
     wxTextDocument() : wxDocument() { }
+
+    virtual bool OnCreate(const wxString& path, long flags); 
+
     virtual wxTextCtrl* GetTextCtrl() const = 0;
 
     virtual bool IsModified() const;
@@ -173,6 +176,8 @@ protected:
     virtual bool DoSaveDocument(const wxString& filename);
     virtual bool DoOpenDocument(const wxString& filename);
 
+    void OnTextChange(wxCommandEvent& event);
+
     wxDECLARE_NO_COPY_CLASS(wxTextDocument);
     DECLARE_CLASS(wxTextDocument)
 };
-- 
2.47.2