X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/606b005fb2b535b34d1ca45d2d06ee86718e8b1c..2a45803fc3877afd0ae3ce356dfe216505165882:/samples/docview/doc.h diff --git a/samples/docview/doc.h b/samples/docview/doc.h index a843fc2f78..c654398222 100644 --- a/samples/docview/doc.h +++ b/samples/docview/doc.h @@ -1,110 +1,250 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 and Markus Holzem -// Licence: wxWindows license +// Copyright: (c) 1998 Julian Smart +// (c) 2008 Vadim Zeitlin +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -// #pragma interface -#endif - -#ifndef __DOCSAMPLEH__ -#define __DOCSAMPLEH__ +#ifndef _WX_SAMPLES_DOCVIEW_DOC_H_ +#define _WX_SAMPLES_DOCVIEW_DOC_H_ #include "wx/docview.h" #include "wx/cmdproc.h" +#include "wx/vector.h" +#include "wx/image.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 -// Plots a line from one point to the other -class DoodleLine: public wxObject +// ---------------------------------------------------------------------------- +// 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 DoodleLines; + // Contains a list of lines: represents a mouse-down doodle -class DoodleSegment: public wxObject +class DoodleSegment { public: - wxList lines; - - DoodleSegment(void); - DoodleSegment(DoodleSegment& seg); - ~DoodleSegment(void); - - 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 - + DocumentOstream& SaveObject(DocumentOstream& stream); + DocumentIstream& LoadObject(DocumentIstream& stream); + + 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; }; -class DrawingDocument: public wxDocument +typedef wxVector DoodleSegments; + + +// The drawing document (model) class itself +class DrawingDocument : public wxDocument { +public: + DrawingDocument() : wxDocument() { } + + DocumentOstream& SaveObject(DocumentOstream& stream); + DocumentIstream& LoadObject(DocumentIstream& stream); + + // 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) +}; + + +// ---------------------------------------------------------------------------- +// 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: + 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: - wxList doodleSegments; - - DrawingDocument(void); - ~DrawingDocument(void); - -#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(void) const { return (wxList&) doodleSegments; }; + DrawingAddSegmentCommand(DrawingDocument *doc, const DoodleSegment& segment) + : DrawingCommand(doc, "Add new segment", segment) + { + } + + virtual bool Do() { return DoAdd(); } + virtual bool Undo() { return DoRemove(); } }; -#define DOODLE_CUT 1 -#define DOODLE_ADD 2 +// The command for removing the last segment +class DrawingRemoveSegmentCommand : public DrawingCommand +{ +public: + DrawingRemoveSegmentCommand(DrawingDocument *doc) + : DrawingCommand(doc, "Remove last segment") + { + } + + virtual bool Do() { return DoRemove(); } + virtual bool Undo() { return DoAdd(); } +}; + + +// ---------------------------------------------------------------------------- +// wxTextDocument: wxDocument and wxTextCtrl married +// ---------------------------------------------------------------------------- -class DrawingCommand: public wxCommand +class wxTextDocument : public wxDocument { -protected: - DoodleSegment *segment; - DrawingDocument *doc; - int cmd; public: - DrawingCommand(const wxString& name, int cmd, DrawingDocument *ddoc, DoodleSegment *seg); - ~DrawingCommand(void); - - bool Do(void); - bool Undo(void); + wxTextDocument() : wxDocument() { } + + virtual bool OnCreate(const wxString& path, long flags); + + virtual wxTextCtrl* GetTextCtrl() const = 0; + + virtual bool IsModified() const; + virtual void Modify(bool mod); + +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) }; -class TextEditDocument: public wxDocument +// ---------------------------------------------------------------------------- +// A very simple text document class +// ---------------------------------------------------------------------------- + +class TextEditDocument : public wxTextDocument { +public: + TextEditDocument() : wxTextDocument() { } + virtual wxTextCtrl* GetTextCtrl() const; + + wxDECLARE_NO_COPY_CLASS(TextEditDocument); DECLARE_DYNAMIC_CLASS(TextEditDocument) -private: +}; + +// ---------------------------------------------------------------------------- +// Image and image details document classes (both are read-only for simplicity) +// ---------------------------------------------------------------------------- + +// This is a normal document containing an image, just like TextEditDocument +// above contains some text. It can be created from an image file on disk as +// usual. +class ImageDocument : public wxDocument +{ public: -/* -wxSTD ostream& SaveObject(wxSTD ostream& stream); -wxSTD istream& LoadObject(wxSTD istream& stream); - */ - virtual bool OnSaveDocument(const wxString& filename); - virtual bool OnOpenDocument(const wxString& filename); - virtual bool IsModified(void) const; - virtual void Modify(bool mod); - - TextEditDocument(void) {} - ~TextEditDocument(void) {} + ImageDocument() : wxDocument() { } + + virtual bool OnOpenDocument(const wxString& file); + + wxImage GetImage() const { return m_image; } + +protected: + virtual bool DoOpenDocument(const wxString& file); + +private: + wxImage m_image; + + wxDECLARE_NO_COPY_CLASS(ImageDocument); + DECLARE_DYNAMIC_CLASS(ImageDocument) }; +// This is a child document of ImageDocument: this document doesn't +// correspond to any file on disk, it's part of ImageDocument and can't be +// instantiated independently of it. +class ImageDetailsDocument : public wxDocument +{ +public: + ImageDetailsDocument(ImageDocument *parent); + + // accessors for ImageDetailsView + wxSize GetSize() const { return m_size; } + unsigned long GetNumColours() const { return m_numColours; } + wxBitmapType GetType() const { return m_type; } + bool HasAlpha() const { return m_hasAlpha; } + +private: + // some information about the image we choose to show to the user + wxSize m_size; + unsigned long m_numColours; + wxBitmapType m_type; + bool m_hasAlpha; + + wxDECLARE_NO_COPY_CLASS(ImageDetailsDocument); +}; -#endif +#endif // _WX_SAMPLES_DOCVIEW_DOC_H_