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);
  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() { m_canvas = NULL; m_frame = 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     wxFrame *m_frame;
  83     MyCanvas *m_canvas;
  84
  85     DECLARE_EVENT_TABLE()
  86     DECLARE_DYNAMIC_CLASS(DrawingView)
  87 };
  88
  89 // ----------------------------------------------------------------------------
  90 // Text view classes
  91 // ----------------------------------------------------------------------------
  92
  93 // The view using a standard wxTextCtrl to show its contents
  94 class TextEditView : public wxView
  95 {
  96 public:
  97     TextEditView() : wxView() { m_frame = NULL; m_text = NULL; }
  98
  99     virtual bool OnCreate(wxDocument *doc, long flags);
 100     virtual void OnDraw(wxDC *dc);
 101     virtual bool OnClose(bool deleteWindow = true);
 102
 103     wxTextCtrl *GetText() const { return m_text; }
 104
 105 private:
 106     void OnCopy(wxCommandEvent& WXUNUSED(event)) { m_text->Copy(); }
 107     void OnPaste(wxCommandEvent& WXUNUSED(event)) { m_text->Paste(); }
 108     void OnSelectAll(wxCommandEvent& WXUNUSED(event)) { m_text->SelectAll(); }
 109
 110     wxFrame *m_frame;
 111     wxTextCtrl *m_text;
 112
 113     DECLARE_EVENT_TABLE()
 114     DECLARE_DYNAMIC_CLASS(TextEditView)
 115 };
 116
 117 // ----------------------------------------------------------------------------
 118 // ImageCanvas
 119 // ----------------------------------------------------------------------------
 120
 121 class ImageCanvas : public wxScrolledWindow
 122 {
 123 public:
 124     ImageCanvas(wxView*, wxWindow* parent);
 125
 126     virtual void OnDraw(wxDC& dc);
 127
 128     // in a normal multiple document application a canvas is associated with
 129     // one view from the beginning until the end, but to support the single
 130     // document mode in which all documents reuse the same MyApp::GetCanvas()
 131     // we need to allow switching the canvas from one view to another one
 132
 133     void SetView(wxView* view)
 134     {
 135         wxASSERT_MSG( !m_view, "shouldn't be already associated with a view" );
 136
 137         m_view = view;
 138     }
 139
 140     void ResetView()
 141     {
 142         wxASSERT_MSG( m_view, "should be associated with a view" );
 143
 144         m_view = NULL;
 145     }
 146
 147 private:
 148     wxView *m_view;
 149 };
 150
 151 // ----------------------------------------------------------------------------
 152 // ImageView
 153 // ----------------------------------------------------------------------------
 154
 155 class ImageView : public wxView
 156 {
 157 public:
 158     ImageView() : wxView(), m_frame(NULL) {}
 159
 160     virtual bool OnCreate(wxDocument*, long flags);
 161     virtual void OnDraw(wxDC*);
 162     virtual bool OnClose(bool deleteWindow = true);
 163     virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
 164
 165     ImageDocument* GetDocument();
 166
 167 private:
 168     wxFrame* m_frame;
 169     ImageCanvas* m_canvas;
 170
 171     DECLARE_DYNAMIC_CLASS(ImageView)
 172 };
 173
 174 #endif // _WX_SAMPLES_DOCVIEW_VIEW_H_