X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/56d7679d3ef0bf4d761d791df00ce17ecd662014..c29c95fe24973b94fd724db767193171ca7c513d:/samples/docview/doc.cpp

diff --git a/samples/docview/doc.cpp b/samples/docview/doc.cpp
index fb915e6465..e093d82ae3 100644
--- a/samples/docview/doc.cpp
+++ b/samples/docview/doc.cpp
@@ -1,363 +1,298 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        doc.cpp
+// Name:        samples/docview/doc.cpp
 // Purpose:     Implements document functionality
 // Author:      Julian Smart
-// Modified by:
+// Modified by: Vadim Zeitlin: merge with the MDI version and general cleanup
 // Created:     04/01/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:   	wxWindows license
+// Copyright:   (c) 1998 Julian Smart
+//              (c) 2008 Vadim Zeitlin
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-// #pragma implementation
-#endif
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
 
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
+#endif
+
+#if !wxUSE_DOC_VIEW_ARCHITECTURE
+    #error You must set wxUSE_DOC_VIEW_ARCHITECTURE to 1 in setup.h!
 #endif
 
 #ifndef WX_PRECOMP
-#include "wx/wx.h"
+    #include "wx/wx.h"
 #endif
-#include "wx/txtstrm.h"
 
-#if !wxUSE_DOC_VIEW_ARCHITECTURE
-#error You must set wxUSE_DOC_VIEW_ARCHITECTURE to 1 in setup.h!
+#if wxUSE_STD_IOSTREAM
+    #include "wx/ioswrap.h"
+#else
+    #include "wx/txtstrm.h"
 #endif
+#include "wx/wfstream.h"
 
 #include "doc.h"
 #include "view.h"
 
-IMPLEMENT_DYNAMIC_CLASS(DrawingDocument, wxDocument)
+// ----------------------------------------------------------------------------
+// DrawingDocument implementation
+// ----------------------------------------------------------------------------
 
-DrawingDocument::DrawingDocument(void)
-{
-}
+IMPLEMENT_DYNAMIC_CLASS(DrawingDocument, wxDocument)
 
-DrawingDocument::~DrawingDocument(void)
+DocumentOstream& DrawingDocument::SaveObject(DocumentOstream& ostream)
 {
-  doodleSegments.DeleteContents(TRUE);
-}
-
 #if wxUSE_STD_IOSTREAM
-ostream& DrawingDocument::SaveObject(ostream& stream)
-{
-  wxDocument::SaveObject(stream);
-
-  stream << doodleSegments.Number() << '\n';
-  wxNode *node = doodleSegments.First();
-  while (node)
-  {
-    DoodleSegment *segment = (DoodleSegment *)node->Data();
-    segment->SaveObject(stream);
-    stream << '\n';
-    
-    node = node->Next();
-  }
-  return stream;
-}
+    DocumentOstream& stream = ostream;
 #else
-bool DrawingDocument::SaveObject(wxOutputStream &stream)
-{
-  wxDocument::SaveObject(stream);
-  
-  wxTextOutputStream text_stream( stream );
-
-  wxInt32 n = doodleSegments.Number();
-  text_stream << n << "\n";
-  
-  wxNode *node = doodleSegments.First();
-  while (node)
-  {
-    DoodleSegment *segment = (DoodleSegment *)node->Data();
-    segment->SaveObject(stream);
-    text_stream << "\n";
-    
-    node = node->Next();
-  }
-  return TRUE;
-}
+    wxTextOutputStream stream(ostream);
 #endif
 
-#if wxUSE_STD_IOSTREAM
-istream& DrawingDocument::LoadObject(istream& stream)
-{
-  wxDocument::LoadObject(stream);
+    wxDocument::SaveObject(ostream);
 
-  int n = 0;
-  stream >> n;
+    const wxInt32 count = m_doodleSegments.size();
+    stream << count << '\n';
 
-  for (int i = 0; i < n; i++)
-  {
-    DoodleSegment *segment = new DoodleSegment;
-    segment->LoadObject(stream);
-    doodleSegments.Append(segment);
-  }
+    for ( int n = 0; n < count; n++ )
+    {
+        m_doodleSegments[n].SaveObject(ostream);
+        stream << '\n';
+    }
 
-  return stream;
+    return ostream;
 }
-#else
-bool DrawingDocument::LoadObject(wxInputStream& stream)
+
+DocumentIstream& DrawingDocument::LoadObject(DocumentIstream& istream)
 {
-  wxDocument::LoadObject(stream);
+#if wxUSE_STD_IOSTREAM
+    DocumentIstream& stream = istream;
+#else
+    wxTextInputStream stream(istream);
+#endif
 
-  wxTextInputStream text_stream( stream );
-  
-  wxInt32 n = 0;
-  text_stream >> n;
+    wxDocument::LoadObject(istream);
 
-  for (int i = 0; i < n; i++)
-  {
-    DoodleSegment *segment = new DoodleSegment;
-    segment->LoadObject(stream);
-    doodleSegments.Append(segment);
-  }
+    wxInt32 count = 0;
+    stream >> count;
+    if ( count < 0 )
+    {
+        wxLogWarning("Drawing document corrupted: invalid segments count.");
+#if wxUSE_STD_IOSTREAM
+        istream.clear(std::ios::badbit);
+#else
+        istream.Reset(wxSTREAM_READ_ERROR);
+#endif
+        return istream;
+    }
+
+    for ( int n = 0; n < count; n++ )
+    {
+        DoodleSegment segment;
+        segment.LoadObject(istream);
+        m_doodleSegments.push_back(segment);
+    }
 
-  return TRUE;
+    return istream;
 }
-#endif
 
-DoodleSegment::DoodleSegment(void)
+void DrawingDocument::DoUpdate()
 {
+    Modify(true);
+    UpdateAllViews();
 }
 
-DoodleSegment::DoodleSegment(DoodleSegment& seg)
+void DrawingDocument::AddDoodleSegment(const DoodleSegment& segment)
 {
-  wxNode *node = seg.lines.First();
-  while (node)
-  {
-    DoodleLine *line = (DoodleLine *)node->Data();
-    DoodleLine *newLine = new DoodleLine;
-    newLine->x1 = line->x1;
-    newLine->y1 = line->y1;
-    newLine->x2 = line->x2;
-    newLine->y2 = line->y2;
-
-    lines.Append(newLine);
-
-    node = node->Next();
-  }
+    m_doodleSegments.push_back(segment);
+
+    DoUpdate();
 }
 
-DoodleSegment::~DoodleSegment(void)
+bool DrawingDocument::PopLastSegment(DoodleSegment *segment)
 {
-  lines.DeleteContents(TRUE);
+    if ( m_doodleSegments.empty() )
+        return false;
+
+    if ( segment )
+        *segment = m_doodleSegments.back();
+
+    m_doodleSegments.pop_back();
+
+    DoUpdate();
+
+    return true;
 }
 
-#if wxUSE_STD_IOSTREAM
-ostream& DoodleSegment::SaveObject(ostream& stream)
+// ----------------------------------------------------------------------------
+// DoodleSegment implementation
+// ----------------------------------------------------------------------------
+
+DocumentOstream& DoodleSegment::SaveObject(DocumentOstream& ostream)
 {
-  stream << lines.Number() << '\n';
-  wxNode *node = lines.First();
-  while (node)
-  {
-    DoodleLine *line = (DoodleLine *)node->Data();
-    stream << line->x1 << " " << line->y1 << " " << line->x2 << " " << line->y2 << "\n";
-    node = node->Next();
-  }
-  return stream;
-}
+#if wxUSE_STD_IOSTREAM
+    DocumentOstream& stream = ostream;
 #else
-bool DoodleSegment::SaveObject(wxOutputStream& stream)
-{
-  wxTextOutputStream text_stream( stream );
-
-  wxInt32 n = lines.Number();
-  text_stream << n << "\n";
-  
-  wxNode *node = lines.First();
-  while (node)
-  {
-    DoodleLine *line = (DoodleLine *)node->Data();
-    text_stream << line->x1 << " " << 
-                   line->y1 << " " << 
-		   line->x2 << " " << 
-		   line->y2 << "\n";
-    node = node->Next();
-  }
-  return TRUE;
-}
+    wxTextOutputStream stream(ostream);
 #endif
 
-#if wxUSE_STD_IOSTREAM
-istream& DoodleSegment::LoadObject(istream& stream)
-{
-  int n = 0;
-  stream >> n;
-
-  for (int i = 0; i < n; i++)
-  {
-    DoodleLine *line = new DoodleLine;
-    stream >> line->x1 >> line->y1 >> line->x2 >> line->y2;
-    lines.Append(line);
-  }
-  return stream;
+    const wxInt32 count = m_lines.size();
+    stream << count << '\n';
+
+    for ( int n = 0; n < count; n++ )
+    {
+        const DoodleLine& line = m_lines[n];
+        stream
+            << line.x1 << ' '
+            << line.y1 << ' '
+            << line.x2 << ' '
+            << line.y2 << '\n';
+    }
+
+    return ostream;
 }
-#else
-bool DoodleSegment::LoadObject(wxInputStream& stream)
+
+DocumentIstream& DoodleSegment::LoadObject(DocumentIstream& istream)
 {
-  wxTextInputStream text_stream( stream );
-  
-  wxInt32 n = 0;
-  text_stream >> n;
-
-  for (int i = 0; i < n; i++)
-  {
-    DoodleLine *line = new DoodleLine;
-    text_stream >> line->x1 >> 
-                   line->y1 >> 
-		   line->x2 >> 
-		   line->y2;
-    lines.Append(line);
-  }
-  return TRUE;
-}
+#if wxUSE_STD_IOSTREAM
+    DocumentIstream& stream = istream;
+#else
+    wxTextInputStream stream(istream);
 #endif
 
-void DoodleSegment::Draw(wxDC *dc)
+    wxInt32 count = 0;
+    stream >> count;
+
+    for ( int n = 0; n < count; n++ )
+    {
+        DoodleLine line;
+        stream
+            >> line.x1
+            >> line.y1
+            >> line.x2
+            >> line.y2;
+        m_lines.push_back(line);
+    }
+
+    return istream;
+}
+
+// ----------------------------------------------------------------------------
+// wxTextDocument: wxDocument and wxTextCtrl married
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_CLASS(wxTextDocument, wxDocument)
+
+bool wxTextDocument::OnCreate(const wxString& path, long flags)
 {
-  wxNode *node = lines.First();
-  while (node)
-  {
-    DoodleLine *line = (DoodleLine *)node->Data();
-    dc->DrawLine(line->x1, line->y1, line->x2, line->y2);
-    node = node->Next();
-  }
+    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;
 }
 
-/*
- * Implementation of drawing command
- */
+// 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)
+{
+    return GetTextCtrl()->SaveFile(filename);
+}
 
-DrawingCommand::DrawingCommand(const wxString& name, int command, DrawingDocument *ddoc, DoodleSegment *seg):
-  wxCommand(TRUE, name)
+bool wxTextDocument::DoOpenDocument(const wxString& filename)
 {
-  doc = ddoc;
-  segment = seg;
-  cmd = command;
+    if ( !GetTextCtrl()->LoadFile(filename) )
+        return false;
+
+    // we're not modified by the user yet
+    Modify(false);
+
+    return true;
 }
 
-DrawingCommand::~DrawingCommand(void)
+bool wxTextDocument::IsModified() const
 {
-  if (segment)
-    delete segment;
+    wxTextCtrl* wnd = GetTextCtrl();
+    return wxDocument::IsModified() || (wnd && wnd->IsModified());
 }
 
-bool DrawingCommand::Do(void)
+void wxTextDocument::Modify(bool modified)
 {
-  switch (cmd)
-  {
-    case DOODLE_CUT:
-    {
-      // Cut the last segment
-      if (doc->GetDoodleSegments().Number() > 0)
-      {
-        wxNode *node = doc->GetDoodleSegments().Last();
-        if (segment)
-          delete segment;
-          
-        segment = (DoodleSegment *)node->Data();
-        delete node;
-
-        doc->Modify(TRUE);
-        doc->UpdateAllViews();
-      }
-      break;
-    }
-    case DOODLE_ADD:
+    wxDocument::Modify(modified);
+
+    wxTextCtrl* wnd = GetTextCtrl();
+    if (wnd && !modified)
     {
-      doc->GetDoodleSegments().Append(new DoodleSegment(*segment));
-      doc->Modify(TRUE);
-      doc->UpdateAllViews();
-      break;
+        wnd->DiscardEdits();
     }
-  }
-  return TRUE;
 }
 
-bool DrawingCommand::Undo(void)
+void wxTextDocument::OnTextChange(wxCommandEvent& event)
 {
-  switch (cmd)
-  {
-    case DOODLE_CUT:
-    {
-      // Paste the segment
-      if (segment)
-      {
-        doc->GetDoodleSegments().Append(segment);
-        doc->Modify(TRUE);
-        doc->UpdateAllViews();
-        segment = (DoodleSegment *) NULL;
-      }
-      doc->Modify(TRUE);
-      doc->UpdateAllViews();
-      break;
-    }
-    case DOODLE_ADD:
-    {
-      // Cut the last segment
-      if (doc->GetDoodleSegments().Number() > 0)
-      {
-        wxNode *node = doc->GetDoodleSegments().Last();
-        DoodleSegment *seg = (DoodleSegment *)node->Data();
-        delete seg;
-        delete node;
-
-        doc->Modify(TRUE);
-        doc->UpdateAllViews();
-      }
-    }
-  }
-  return TRUE;
+    Modify(true);
+
+    event.Skip();
 }
 
+// ----------------------------------------------------------------------------
+// TextEditDocument implementation
+// ----------------------------------------------------------------------------
+
 IMPLEMENT_DYNAMIC_CLASS(TextEditDocument, wxDocument)
 
-// Since text windows have their own method for saving to/loading from files,
-// we override OnSave/OpenDocument instead of Save/LoadObject
-bool TextEditDocument::OnSaveDocument(const wxString& filename)
+wxTextCtrl* TextEditDocument::GetTextCtrl() const
 {
-    TextEditView *view = (TextEditView *)GetFirstView();
-
-    if (!view->textsw->SaveFile(filename))
-        return FALSE;
-    Modify(FALSE);
-    return TRUE;
+    wxView* view = GetFirstView();
+    return view ? wxStaticCast(view, TextEditView)->GetText() : NULL;
 }
 
-bool TextEditDocument::OnOpenDocument(const wxString& filename)
-{
-    TextEditView *view = (TextEditView *)GetFirstView();
-    if (!view->textsw->LoadFile(filename))
-        return FALSE;
+// ----------------------------------------------------------------------------
+// ImageDocument and ImageDetailsDocument implementation
+// ----------------------------------------------------------------------------
 
-    SetFilename(filename, TRUE);
-    Modify(FALSE);
-    UpdateAllViews();
-    return TRUE;
-}
+IMPLEMENT_DYNAMIC_CLASS(ImageDocument, wxDocument)
 
-bool TextEditDocument::IsModified(void) const
+bool ImageDocument::DoOpenDocument(const wxString& file)
 {
-  TextEditView *view = (TextEditView *)GetFirstView();
-  if (view)
-  {
-    return (wxDocument::IsModified() || view->textsw->IsModified());
-  }
-  else
-    return wxDocument::IsModified();
+    return m_image.LoadFile(file);
 }
 
-void TextEditDocument::Modify(bool mod)
+bool ImageDocument::OnOpenDocument(const wxString& filename)
 {
-  TextEditView *view = (TextEditView *)GetFirstView();
+    if ( !wxDocument::OnOpenDocument(filename) )
+        return false;
 
-  wxDocument::Modify(mod);
+    // we don't have a wxDocTemplate for the image details document as it's
+    // never created by wxWidgets automatically, instead just do it manually
+    ImageDetailsDocument * const docDetails = new ImageDetailsDocument(this);
+    docDetails->SetFilename(filename);
+
+    new ImageDetailsView(docDetails);
+
+    return true;
+}
+
+ImageDetailsDocument::ImageDetailsDocument(ImageDocument *parent)
+    : wxDocument(parent)
+{
+    const wxImage image = parent->GetImage();
 
-  if (!mod && view && view->textsw)
-    view->textsw->DiscardEdits();
+    m_size.x = image.GetWidth();
+    m_size.y = image.GetHeight();
+    m_numColours = image.CountColours();
+    m_type = image.GetType();
+    m_hasAlpha = image.HasAlpha();
 }