samples/docview/view.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        samples/docview/view.h
   3 // Purpose:     View classes
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin: merge with the MDI version and general cleanup
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 //              (c) 2008 Vadim Zeitlin
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_SAMPLES_DOCVIEW_VIEW_H_
  14 #define _WX_SAMPLES_DOCVIEW_VIEW_H_
  15
  16 #include "wx/docview.h"
  17
  18 // ----------------------------------------------------------------------------
  19 // Drawing view classes
  20 // ----------------------------------------------------------------------------
  21
  22 // The window showing the drawing itself
  23 class MyCanvas : public wxScrolledWindow
  24 {
  25 public:
  26     // view may be NULL if we're not associated with one yet, but parent must
  27     // be a valid pointer
  28     MyCanvas(wxView *view, wxWindow *parent = NULL);
  29     virtual ~MyCanvas();
  30
  31     virtual void OnDraw(wxDC& dc);
  32
  33     // in a normal multiple document application a canvas is associated with
  34     // one view from the beginning until the end, but to support the single
  35     // document mode in which all documents reuse the same MyApp::GetCanvas()
  36     // we need to allow switching the canvas from one view to another one
  37
  38     void SetView(wxView *view)
  39     {
  40         wxASSERT_MSG( !m_view, "shouldn't be already associated with a view" );
  41
  42         m_view = view;
  43     }
  44
  45     void ResetView()
  46     {
  47         wxASSERT_MSG( m_view, "should be associated with a view" );
  48
  49         m_view = NULL;
  50     }
  51
  52 private:
  53     void OnMouseEvent(wxMouseEvent& event);
  54
  55     wxView *m_view;
  56
  57     // the segment being currently drawn or NULL if none
  58     DoodleSegment *m_currentSegment;
  59
  60     // the last mouse press position
  61     wxPoint m_lastMousePos;
  62
  63     DECLARE_EVENT_TABLE()
  64 };
  65
  66 // The view using MyCanvas to show its contents
  67 class DrawingView : public wxView
  68 {
  69 public:
  70     DrawingView() : wxView(), m_canvas(NULL) {}
  71
  72     virtual bool OnCreate(wxDocument *doc, long flags);
  73     virtual void OnDraw(wxDC *dc);
  74     virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
  75     virtual bool OnClose(bool deleteWindow = true);
  76
  77     DrawingDocument* GetDocument();
  78
  79 private:
  80     void OnCut(wxCommandEvent& event);
  81
  82     MyCanvas *m_canvas;
  83
  84     DECLARE_EVENT_TABLE()
  85     DECLARE_DYNAMIC_CLASS(DrawingView)
  86 };
  87
  88 // ----------------------------------------------------------------------------
  89 // Text view classes
  90 // ----------------------------------------------------------------------------
  91
  92 // The view using a standard wxTextCtrl to show its contents
  93 class TextEditView : public wxView
  94 {
  95 public:
  96     TextEditView() : wxView(), m_text(NULL) {}
  97
  98     virtual bool OnCreate(wxDocument *doc, long flags);
  99     virtual void OnDraw(wxDC *dc);
 100     virtual bool OnClose(bool deleteWindow = true);
 101
 102     wxTextCtrl *GetText() const { return m_text; }
 103
 104 private:
 105     void OnCopy(wxCommandEvent& WXUNUSED(event)) { m_text->Copy(); }
 106     void OnPaste(wxCommandEvent& WXUNUSED(event)) { m_text->Paste(); }
 107     void OnSelectAll(wxCommandEvent& WXUNUSED(event)) { m_text->SelectAll(); }
 108
 109     wxTextCtrl *m_text;
 110
 111     DECLARE_EVENT_TABLE()
 112     DECLARE_DYNAMIC_CLASS(TextEditView)
 113 };
 114
 115 // ----------------------------------------------------------------------------
 116 // ImageCanvas
 117 // ----------------------------------------------------------------------------
 118
 119 class ImageCanvas : public wxScrolledWindow
 120 {
 121 public:
 122     ImageCanvas(wxView*);
 123
 124     virtual void OnDraw(wxDC& dc);
 125 private:
 126     wxView *m_view;
 127 };
 128
 129 // ----------------------------------------------------------------------------
 130 // ImageView
 131 // ----------------------------------------------------------------------------
 132
 133 class ImageView : public wxView
 134 {
 135 public:
 136     ImageView() : wxView() {}
 137
 138     virtual bool OnCreate(wxDocument*, long flags);
 139     virtual void OnDraw(wxDC*);
 140     virtual bool OnClose(bool deleteWindow = true);
 141     virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
 142
 143     ImageDocument* GetDocument();
 144
 145 private:
 146     ImageCanvas* m_canvas;
 147
 148     DECLARE_DYNAMIC_CLASS(ImageView)
 149 };
 150
 151 #endif // _WX_SAMPLES_DOCVIEW_VIEW_H_