/////////////////////////////////////////////////////////////////////////////
-// Name: doc.h
+// Name: samples/docview/doc.h
// Purpose: Document classes
// 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
+// Copyright: (c) 1998 Julian Smart
+// (c) 2008 Vadim Zeitlin
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
-#ifndef __DOC_H__
-#define __DOC_H__
+#ifndef _WX_SAMPLES_DOCVIEW_DOC_H_
+#define _WX_SAMPLES_DOCVIEW_DOC_H_
#include "wx/docview.h"
#include "wx/cmdproc.h"
-
-// Plots a line from one point to the other
-class DoodleLine : public wxObject
+#include "wx/vector.h"
+
+// This sample is written to build both with wxUSE_STD_IOSTREAM==0 and 1, which
+// somewhat complicates its code but is necessary in order to support building
+// it under all platforms and in all build configurations
+//
+// In your own code you would normally use std::stream classes only and so
+// wouldn't need these typedefs
+#if wxUSE_STD_IOSTREAM
+ typedef wxSTD istream DocumentIstream;
+ typedef wxSTD ostream DocumentOstream;
+#else // !wxUSE_STD_IOSTREAM
+ typedef wxInputStream DocumentIstream;
+ typedef wxOutputStream DocumentOstream;
+#endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
+
+// ----------------------------------------------------------------------------
+// The document class and its helpers
+// ----------------------------------------------------------------------------
+
+// Represents a line from one point to the other
+struct DoodleLine
{
-public:
+ DoodleLine() { /* leave fields uninitialized */ }
+
+ DoodleLine(const wxPoint& pt1, const wxPoint& pt2)
+ : x1(pt1.x), y1(pt1.y), x2(pt2.x), y2(pt2.y)
+ {
+ }
+
wxInt32 x1;
wxInt32 y1;
wxInt32 x2;
wxInt32 y2;
};
+typedef wxVector<DoodleLine> DoodleLines;
+
// Contains a list of lines: represents a mouse-down doodle
-class DoodleSegment : public wxObject
+class DoodleSegment
{
public:
- wxList m_lines;
+ DocumentOstream& SaveObject(DocumentOstream& stream);
+ DocumentIstream& LoadObject(DocumentIstream& stream);
- DoodleSegment() : wxObject() {}
- DoodleSegment(const DoodleSegment& seg);
- virtual ~DoodleSegment();
-
- void Draw(wxDC *dc);
-#if wxUSE_STD_IOSTREAM
- wxSTD ostream& SaveObject(wxSTD ostream& text_stream);
- wxSTD istream& LoadObject(wxSTD istream& text_stream);
-#else
- wxOutputStream& SaveObject(wxOutputStream& stream);
- wxInputStream& LoadObject(wxInputStream& stream);
-#endif
+ bool IsEmpty() const { return m_lines.empty(); }
+ void AddLine(const wxPoint& pt1, const wxPoint& pt2)
+ {
+ m_lines.push_back(DoodleLine(pt1, pt2));
+ }
+ const DoodleLines& GetLines() const { return m_lines; }
+private:
+ DoodleLines m_lines;
};
+typedef wxVector<DoodleSegment> DoodleSegments;
+
+
+// The drawing document (model) class itself
class DrawingDocument : public wxDocument
{
- DECLARE_DYNAMIC_CLASS(DrawingDocument)
-private:
public:
- wxList m_doodleSegments;
+ DrawingDocument() : wxDocument() { }
- DrawingDocument() : wxDocument() {}
- virtual ~DrawingDocument();
+ DocumentOstream& SaveObject(DocumentOstream& stream);
+ DocumentIstream& LoadObject(DocumentIstream& stream);
-#if wxUSE_STD_IOSTREAM
- wxSTD ostream& SaveObject(wxSTD ostream& text_stream);
- wxSTD istream& LoadObject(wxSTD istream& text_stream);
-#else
- wxOutputStream& SaveObject(wxOutputStream& stream);
- wxInputStream& LoadObject(wxInputStream& stream);
-#endif
-
- inline wxList& GetDoodleSegments() const { return (wxList&) m_doodleSegments; };
+ // add a new segment to the document
+ void AddDoodleSegment(const DoodleSegment& segment);
+
+ // remove the last segment, if any, and copy it in the provided pointer if
+ // not NULL and return true or return false and do nothing if there are no
+ // segments
+ bool PopLastSegment(DoodleSegment *segment);
+
+ // get direct access to our segments (for DrawingView)
+ const DoodleSegments& GetSegments() const { return m_doodleSegments; }
+
+private:
+ void DoUpdate();
+
+ DoodleSegments m_doodleSegments;
+
+ DECLARE_DYNAMIC_CLASS(DrawingDocument)
};
-#define DOODLE_CUT 1
-#define DOODLE_ADD 2
+// ----------------------------------------------------------------------------
+// Some operations (which can be done and undone by the view) on the document:
+// ----------------------------------------------------------------------------
+
+// Base class for all operations on DrawingDocument
class DrawingCommand : public wxCommand
{
+public:
+ DrawingCommand(DrawingDocument *doc,
+ const wxString& name,
+ const DoodleSegment& segment = DoodleSegment())
+ : wxCommand(true, name),
+ m_doc(doc),
+ m_segment(segment)
+ {
+ }
+
protected:
- DoodleSegment* m_segment;
- DrawingDocument* m_doc;
- int m_cmd;
+ bool DoAdd() { m_doc->AddDoodleSegment(m_segment); return true; }
+ bool DoRemove() { return m_doc->PopLastSegment(&m_segment); }
+
+private:
+ DrawingDocument * const m_doc;
+ DoodleSegment m_segment;
+};
+
+// The command for adding a new segment
+class DrawingAddSegmentCommand : public DrawingCommand
+{
+public:
+ DrawingAddSegmentCommand(DrawingDocument *doc, const DoodleSegment& segment)
+ : DrawingCommand(doc, "Add new segment", segment)
+ {
+ }
+
+ virtual bool Do() { return DoAdd(); }
+ virtual bool Undo() { return DoRemove(); }
+};
+
+// The command for removing the last segment
+class DrawingRemoveSegmentCommand : public DrawingCommand
+{
public:
- DrawingCommand(const wxString& name, int cmd, DrawingDocument*, DoodleSegment*);
- virtual ~DrawingCommand();
+ DrawingRemoveSegmentCommand(DrawingDocument *doc)
+ : DrawingCommand(doc, "Remove last segment")
+ {
+ }
- bool Do(void);
- bool Undo(void);
+ virtual bool Do() { return DoRemove(); }
+ virtual bool Undo() { return DoAdd(); }
};
+
+// ----------------------------------------------------------------------------
+// A simple text document class
+// ----------------------------------------------------------------------------
+
class TextEditView;
class TextEditDocument : public wxDocument
{
- DECLARE_DYNAMIC_CLASS(TextEditDocument)
public:
- TextEditDocument() : wxDocument() {}
- virtual ~TextEditDocument() {}
-/*
- wxSTD ostream& SaveObject(wxSTD ostream&);
- wxSTD istream& LoadObject(wxSTD istream&);
-*/
- TextEditView* GetFirstView() const;
-
- virtual bool OnSaveDocument(const wxString& filename);
- virtual bool OnOpenDocument(const wxString& filename);
- virtual bool IsModified(void) const;
+ TextEditDocument() : wxDocument() { }
+ TextEditView *GetFirstView() const;
+
+ virtual bool DoSaveDocument(const wxString& filename);
+ virtual bool DoOpenDocument(const wxString& filename);
+ virtual bool IsModified() const;
virtual void Modify(bool mod);
-};
+ DECLARE_NO_COPY_CLASS(TextEditDocument)
+ DECLARE_DYNAMIC_CLASS(TextEditDocument)
+};
-#endif
+#endif // _WX_SAMPLES_DOCVIEW_DOC_H_
projects / wxWidgets.git / blobdiff