X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/828c8f98d5346c58b8fa75b043fba7a2a007b337..1d8cdcf2e39810b8e6128ac8a504cc206068f58c:/samples/docview/doc.cpp

diff --git a/samples/docview/doc.cpp b/samples/docview/doc.cpp
index f43bbb1c13..cf53892ea2 100644
--- a/samples/docview/doc.cpp
+++ b/samples/docview/doc.cpp
@@ -34,6 +34,7 @@
 #else
     #include "wx/txtstrm.h"
 #endif
+#include "wx/wfstream.h"
 
 #include "doc.h"
 #include "view.h"
@@ -176,6 +177,24 @@ 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 +204,13 @@ 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 +230,13 @@ void wxTextDocument::Modify(bool modified)
     }
 }
 
+void wxTextDocument::OnTextChange(wxCommandEvent& event)
+{
+    Modify(true);
+
+    event.Skip();
+}
+
 // ----------------------------------------------------------------------------
 // TextEditDocument implementation
 // ----------------------------------------------------------------------------
@@ -216,3 +248,58 @@ wxTextCtrl* TextEditDocument::GetTextCtrl() const
     wxView* view = GetFirstView();
     return view ? wxStaticCast(view, TextEditView)->GetText() : NULL;
 }
+
+// ----------------------------------------------------------------------------
+// wxImageDocument implementation
+// ----------------------------------------------------------------------------
+
+/////////////////////////////////////////////////////////////////////////////
+// wxImageDocument
+
+IMPLEMENT_DYNAMIC_CLASS(wxImageDocument, wxDocument)
+
+wxImageDocument::wxImageDocument() : wxDocument()
+{
+}
+
+wxImageDocument::~wxImageDocument()
+{
+}
+
+bool wxImageDocument::DeleteContents()
+{
+    bool ok = wxDocument::DeleteContents();
+    if (ok && m_image.IsOk())
+    {
+        m_image.Destroy();
+    }
+    return ok;
+}
+
+bool wxImageDocument::SaveFile(wxOutputStream* stream, wxBitmapType type) const
+{
+    return m_image.IsOk() && m_image.SaveFile(*stream, type);
+}
+
+bool wxImageDocument::DoOpenDocument(const wxString& file)
+{
+    wxFileInputStream stream(file);
+    return stream.IsOk() && DoOpenDocument(&stream);
+}
+
+bool wxImageDocument::DoSaveDocument(const wxString& file)
+{
+    wxFileOutputStream stream(file);
+    return stream.IsOk() && DoSaveDocument(&stream);
+}
+
+bool wxImageDocument::DoOpenDocument(wxInputStream* stream)
+{
+    return m_image.LoadFile(*stream);
+}
+
+bool wxImageDocument::DoSaveDocument(wxOutputStream* stream) const
+{
+    return m_image.IsOk() && SaveFile(stream, m_image.GetType());
+}
+