wxWidgets/samples/docview/view.h

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/////////////////////////////////////////////////////////////////////////////
// Name: samples/docview/view.h
// Purpose: View classes
// Author: Julian Smart
// Modified by: Vadim Zeitlin: merge with the MDI version and general cleanup
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Julian Smart
// (c) 2008 Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_SAMPLES_DOCVIEW_VIEW_H_
#define _WX_SAMPLES_DOCVIEW_VIEW_H_
#include "wx/docview.h"
// ----------------------------------------------------------------------------
// Drawing view classes
// ----------------------------------------------------------------------------
// The window showing the drawing itself
class MyCanvas : public wxScrolledWindow
{
public:
// view may be NULL if we're not associated with one yet, but parent must
// be a valid pointer
MyCanvas(wxView *view, wxWindow *parent);
virtual ~MyCanvas();
virtual void OnDraw(wxDC& dc);
// in a normal multiple document application a canvas is associated with
// one view from the beginning until the end, but to support the single
// document mode in which all documents reuse the same MyApp::GetCanvas()
// we need to allow switching the canvas from one view to another one
void SetView(wxView *view)
{
wxASSERT_MSG( !m_view, "shouldn't be already associated with a view" );
m_view = view;
}
void ResetView()
{
wxASSERT_MSG( m_view, "should be associated with a view" );
m_view = NULL;
}
private:
void OnMouseEvent(wxMouseEvent& event);
wxView *m_view;
// the segment being currently drawn or NULL if none
DoodleSegment *m_currentSegment;
// the last mouse press position
wxPoint m_lastMousePos;
DECLARE_EVENT_TABLE()
};
// The view using MyCanvas to show its contents
class DrawingView : public wxView
{
public:
DrawingView() { m_canvas = NULL; m_frame = NULL; }
virtual bool OnCreate(wxDocument *doc, long flags);
virtual void OnDraw(wxDC *dc);
virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
virtual bool OnClose(bool deleteWindow = true);
DrawingDocument* GetDocument();
private:
void OnCut(wxCommandEvent& event);
wxFrame *m_frame;
MyCanvas *m_canvas;
DECLARE_EVENT_TABLE()
DECLARE_DYNAMIC_CLASS(DrawingView)
};
// ----------------------------------------------------------------------------
// Text view classes
// ----------------------------------------------------------------------------
// The view using a standard wxTextCtrl to show its contents
class TextEditView : public wxView
{
public:
TextEditView() : wxView() { m_frame = NULL; m_text = NULL; }
virtual bool OnCreate(wxDocument *doc, long flags);
virtual void OnDraw(wxDC *dc);
virtual bool OnClose(bool deleteWindow = true);
wxTextCtrl *GetText() const { return m_text; }
private:
void OnCopy(wxCommandEvent& WXUNUSED(event)) { m_text->Copy(); }
void OnPaste(wxCommandEvent& WXUNUSED(event)) { m_text->Paste(); }
void OnSelectAll(wxCommandEvent& WXUNUSED(event)) { m_text->SelectAll(); }
wxFrame *m_frame;
wxTextCtrl *m_text;
DECLARE_EVENT_TABLE()
DECLARE_DYNAMIC_CLASS(TextEditView)
};
// ----------------------------------------------------------------------------
// ImageCanvas
// ----------------------------------------------------------------------------
class ImageCanvas : public wxScrolledWindow
{
public:
ImageCanvas(wxView*, wxWindow* parent);
virtual void OnDraw(wxDC& dc);
// in a normal multiple document application a canvas is associated with
// one view from the beginning until the end, but to support the single
// document mode in which all documents reuse the same MyApp::GetCanvas()
// we need to allow switching the canvas from one view to another one
void SetView(wxView* view)
{
wxASSERT_MSG( !m_view, "shouldn't be already associated with a view" );
m_view = view;
}
void ResetView()
{
wxASSERT_MSG( m_view, "should be associated with a view" );
m_view = NULL;
}
private:
wxView *m_view;
};
// ----------------------------------------------------------------------------
// ImageView
// ----------------------------------------------------------------------------
class ImageView : public wxView
{
public:
ImageView() : wxView(), m_frame(NULL) {}
virtual bool OnCreate(wxDocument*, long flags);
virtual void OnDraw(wxDC*);
virtual bool OnClose(bool deleteWindow = true);
virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
ImageDocument* GetDocument();
private:
wxFrame* m_frame;
ImageCanvas* m_canvas;
DECLARE_DYNAMIC_CLASS(ImageView)
};
#endif // _WX_SAMPLES_DOCVIEW_VIEW_H_