/////////////////////////////////////////////////////////////////////////////
-// 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 license
/////////////////////////////////////////////////////////////////////////////
-#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
-#if !USE_DOC_VIEW_ARCHITECTURE
-#error You must set USE_DOC_VIEW_ARCHITECTURE to 1 in wx_setup.h!
+#if wxUSE_STD_IOSTREAM
+ #include "wx/ioswrap.h"
+#else
+ #include "wx/txtstrm.h"
#endif
#include "doc.h"
#include "view.h"
+// ----------------------------------------------------------------------------
+// DrawingDocument implementation
+// ----------------------------------------------------------------------------
+
IMPLEMENT_DYNAMIC_CLASS(DrawingDocument, wxDocument)
-DrawingDocument::DrawingDocument(void)
+DocumentOstream& DrawingDocument::SaveObject(DocumentOstream& ostream)
{
-}
+#if wxUSE_STD_IOSTREAM
+ DocumentOstream& stream = ostream;
+#else
+ wxTextOutputStream stream(ostream);
+#endif
-DrawingDocument::~DrawingDocument(void)
-{
- doodleSegments.DeleteContents(TRUE);
-}
+ wxDocument::SaveObject(ostream);
-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;
+ const wxInt32 count = m_doodleSegments.size();
+ stream << count << '\n';
+
+ for ( int n = 0; n < count; n++ )
+ {
+ m_doodleSegments[n].SaveObject(ostream);
+ stream << '\n';
+ }
+
+ return ostream;
}
-istream& DrawingDocument::LoadObject(istream& stream)
+DocumentIstream& DrawingDocument::LoadObject(DocumentIstream& istream)
{
- wxDocument::LoadObject(stream);
+#if wxUSE_STD_IOSTREAM
+ DocumentIstream& stream = istream;
+#else
+ wxTextInputStream stream(istream);
+#endif
- int n = 0;
- 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;
- return stream;
-}
+ for ( int n = 0; n < count; n++ )
+ {
+ DoodleSegment segment;
+ segment.LoadObject(istream);
+ m_doodleSegments.push_back(segment);
+ }
-DoodleSegment::DoodleSegment(void)
-{
+ return istream;
}
-DoodleSegment::DoodleSegment(DoodleSegment& seg)
+void DrawingDocument::DoUpdate()
{
- 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();
- }
+ Modify(true);
+ UpdateAllViews();
}
-DoodleSegment::~DoodleSegment(void)
+void DrawingDocument::AddDoodleSegment(const DoodleSegment& segment)
{
- lines.DeleteContents(TRUE);
-}
+ m_doodleSegments.push_back(segment);
-ostream& DoodleSegment::SaveObject(ostream& stream)
-{
- 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;
+ DoUpdate();
}
-istream& DoodleSegment::LoadObject(istream& stream)
+bool DrawingDocument::PopLastSegment(DoodleSegment *segment)
{
- 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;
-}
+ if ( m_doodleSegments.empty() )
+ return false;
-void DoodleSegment::Draw(wxDC *dc)
-{
- 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 ( segment )
+ *segment = m_doodleSegments.back();
-/*
- * Implementation of drawing command
- */
+ m_doodleSegments.pop_back();
-DrawingCommand::DrawingCommand(const wxString& name, int command, DrawingDocument *ddoc, DoodleSegment *seg):
- wxCommand(TRUE, name)
-{
- doc = ddoc;
- segment = seg;
- cmd = command;
-}
+ DoUpdate();
-DrawingCommand::~DrawingCommand(void)
-{
- if (segment)
- delete segment;
+ return true;
}
-bool DrawingCommand::Do(void)
+// ----------------------------------------------------------------------------
+// DoodleSegment implementation
+// ----------------------------------------------------------------------------
+
+DocumentOstream& DoodleSegment::SaveObject(DocumentOstream& ostream)
{
- 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:
+#if wxUSE_STD_IOSTREAM
+ DocumentOstream& stream = ostream;
+#else
+ wxTextOutputStream stream(ostream);
+#endif
+
+ const wxInt32 count = m_lines.size();
+ stream << count << '\n';
+
+ for ( int n = 0; n < count; n++ )
{
- doc->GetDoodleSegments().Append(new DoodleSegment(*segment));
- doc->Modify(TRUE);
- doc->UpdateAllViews();
- break;
+ const DoodleLine& line = m_lines[n];
+ stream
+ << line.x1 << ' '
+ << line.y1 << ' '
+ << line.x2 << ' '
+ << line.y2 << '\n';
}
- }
- return TRUE;
+
+ return ostream;
}
-bool DrawingCommand::Undo(void)
+DocumentIstream& DoodleSegment::LoadObject(DocumentIstream& istream)
{
- switch (cmd)
- {
- case DOODLE_CUT:
- {
- // Paste the segment
- if (segment)
- {
- doc->GetDoodleSegments().Append(segment);
- doc->Modify(TRUE);
- doc->UpdateAllViews();
- segment = NULL;
- }
- doc->Modify(TRUE);
- doc->UpdateAllViews();
- break;
- }
- case DOODLE_ADD:
+#if wxUSE_STD_IOSTREAM
+ DocumentIstream& stream = istream;
+#else
+ wxTextInputStream stream(istream);
+#endif
+
+ wxInt32 count = 0;
+ stream >> count;
+
+ for ( int n = 0; n < count; n++ )
{
- // 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();
- }
+ DoodleLine line;
+ stream
+ >> line.x1
+ >> line.y1
+ >> line.x2
+ >> line.y2;
+ m_lines.push_back(line);
}
- }
- return TRUE;
+
+ return istream;
}
-IMPLEMENT_DYNAMIC_CLASS(TextEditDocument, wxDocument)
+// ----------------------------------------------------------------------------
+// wxTextDocument: wxDocument and wxTextCtrl married
+// ----------------------------------------------------------------------------
-// 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)
+IMPLEMENT_CLASS(wxTextDocument, wxDocument)
+
+bool wxTextDocument::OnCreate(const wxString& path, long flags)
{
- TextEditView *view = (TextEditView *)GetFirstView();
+ 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;
+}
- if (!view->textsw->SaveFile(filename))
- return FALSE;
- Modify(FALSE);
- 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)
+{
+ return GetTextCtrl()->SaveFile(filename);
}
-bool TextEditDocument::OnOpenDocument(const wxString& filename)
+bool wxTextDocument::DoOpenDocument(const wxString& filename)
{
- TextEditView *view = (TextEditView *)GetFirstView();
- if (!view->textsw->LoadFile(filename))
- return FALSE;
+ if ( !GetTextCtrl()->LoadFile(filename) )
+ return false;
- SetFilename(filename, TRUE);
- Modify(FALSE);
- UpdateAllViews();
- return TRUE;
+ // we're not modified by the user yet
+ Modify(false);
+
+ return true;
}
-bool TextEditDocument::IsModified(void) const
+bool wxTextDocument::IsModified() const
{
- TextEditView *view = (TextEditView *)GetFirstView();
- if (view)
- {
- return (wxDocument::IsModified() || view->textsw->Modified());
- }
- else
- return wxDocument::IsModified();
+ wxTextCtrl* wnd = GetTextCtrl();
+ return wxDocument::IsModified() || (wnd && wnd->IsModified());
}
-void TextEditDocument::Modify(bool mod)
+void wxTextDocument::Modify(bool modified)
{
- TextEditView *view = (TextEditView *)GetFirstView();
+ wxDocument::Modify(modified);
- wxDocument::Modify(mod);
+ wxTextCtrl* wnd = GetTextCtrl();
+ if (wnd && !modified)
+ {
+ wnd->DiscardEdits();
+ }
+}
- if (!mod && view && view->textsw)
- view->textsw->DiscardEdits();
+void wxTextDocument::OnTextChange(wxCommandEvent& event)
+{
+ Modify(true);
+
+ event.Skip();
+}
+
+// ----------------------------------------------------------------------------
+// TextEditDocument implementation
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(TextEditDocument, wxDocument)
+
+wxTextCtrl* TextEditDocument::GetTextCtrl() const
+{
+ wxView* view = GetFirstView();
+ return view ? wxStaticCast(view, TextEditView)->GetText() : NULL;
}
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