contrib/include/wx/canvas/canvas.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        canvas.h
   3 // Author:      Robert Roebling
   4 // Created:     XX/XX/XX
   5 // Copyright:   2000 (c) Robert Roebling
   6 // Licence:     wxWindows Licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 #ifndef __WXCANVAS_H__
  10 #define __WXCANVAS_H__
  11
  12 #ifdef __GNUG__
  13     #pragma interface "canvas.cpp"
  14 #endif
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/wx.h"
  18 #endif
  19
  20 #include "wx/image.h"
  21 #include "wx/txtstrm.h"
  22
  23 class wxCanvas;
  24
  25 // WDR: class declarations
  26
  27 //----------------------------------------------------------------------------
  28 // wxCanvasObject
  29 //----------------------------------------------------------------------------
  30
  31 class wxCanvasObject: public wxEvtHandler
  32 {
  33 public:
  34     wxCanvasObject( int x, int y, int width, int height );
  35
  36     virtual void Move( int x, int y );
  37     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
  38     virtual void WriteSVG( wxTextOutputStream &stream );
  39
  40     wxCanvas   *GetOwner()              { return m_owner; }
  41     void SetOwner( wxCanvas *owner )    { m_owner = owner; }
  42
  43     bool        IsControl()     { return m_isControl; }
  44     bool        IsVector()      { return m_isVector; }
  45     bool        IsImage()       { return m_isImage; }
  46     inline int  GetX()          { return m_area.x; }
  47     inline int  GetY()          { return m_area.y; }
  48     inline int  GetWidth()      { return m_area.width; }
  49     inline int  GetHeight()     { return m_area.height; }
  50
  51 protected:
  52     wxCanvas   *m_owner;
  53     bool        m_isControl;
  54     bool        m_isVector;
  55     bool        m_isImage;
  56     wxRect      m_area;
  57
  58     friend class wxCanvas;
  59 };
  60
  61 //----------------------------------------------------------------------------
  62 // wxCanvasRect
  63 //----------------------------------------------------------------------------
  64
  65 class wxCanvasRect: public wxCanvasObject
  66 {
  67 public:
  68     wxCanvasRect( int x, int y, int w, int h, unsigned char red, unsigned char green, unsigned char blue );
  69
  70     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
  71     virtual void WriteSVG( wxTextOutputStream &stream );
  72
  73 private:
  74     unsigned char m_red;
  75     unsigned char m_green;
  76     unsigned char m_blue;
  77 };
  78
  79 //----------------------------------------------------------------------------
  80 // wxCanvasImage
  81 //----------------------------------------------------------------------------
  82
  83 class wxCanvasImage: public wxCanvasObject
  84 {
  85 public:
  86     wxCanvasImage( const wxImage &image, int x, int y );
  87
  88     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
  89     virtual void WriteSVG( wxTextOutputStream &stream );
  90
  91 private:
  92     wxImage     m_image;
  93 };
  94
  95 //----------------------------------------------------------------------------
  96 // wxCanvasControl
  97 //----------------------------------------------------------------------------
  98
  99 class wxCanvasControl: public wxCanvasObject
 100 {
 101 public:
 102     wxCanvasControl( wxWindow *control );
 103     ~wxCanvasControl();
 104
 105     virtual void Move( int x, int y );
 106     void UpdateSize();
 107
 108 private:
 109     wxWindow     *m_control;
 110 };
 111
 112 //----------------------------------------------------------------------------
 113 // wxCanvasText
 114 //----------------------------------------------------------------------------
 115
 116 class wxCanvasText: public wxCanvasObject
 117 {
 118 public:
 119     wxCanvasText( const wxString &text, int x, int y, const wxString &foneFile, int size );
 120     ~wxCanvasText();
 121
 122     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
 123     virtual void WriteSVG( wxTextOutputStream &stream );
 124
 125     void CreateBuffer();
 126     void SetRGB( unsigned char red, unsigned char green, unsigned char blue );
 127     void SetFlag( int flag );
 128
 129 private:
 130     wxString        m_text;
 131     unsigned char  *m_alpha;
 132     void           *m_faceData;
 133     int             m_flag;
 134     int             m_red;
 135     int             m_green;
 136     int             m_blue;
 137     wxString        m_fontFileName;
 138     int             m_size;
 139 };
 140
 141 //----------------------------------------------------------------------------
 142 // wxCanvas
 143 //----------------------------------------------------------------------------
 144
 145 class wxCanvas: public wxScrolledWindow
 146 {
 147 public:
 148     // constructors and destructors
 149     wxCanvas( wxWindow *parent, wxWindowID id = -1,
 150         const wxPoint& pos = wxDefaultPosition,
 151         const wxSize& size = wxDefaultSize,
 152         long style = wxScrolledWindowStyle );
 153     virtual ~wxCanvas();
 154
 155     virtual void SetArea( int width, int height );
 156     virtual void SetColour( unsigned char red, unsigned char green, unsigned char blue );
 157     virtual void Update( int x, int y, int width, int height );
 158     virtual void UpdateNow();
 159
 160     virtual void Prepend( wxCanvasObject* obj );
 161     virtual void Append( wxCanvasObject* obj );
 162     virtual void Insert( size_t before, wxCanvasObject* obj );
 163     virtual void Remove( wxCanvasObject* obj );
 164
 165     wxImage *GetBuffer()         { return &m_buffer; }
 166     bool NeedUpdate()            { return m_needUpdate; }
 167
 168     void BlitBuffer( wxDC &dc );
 169
 170 private:
 171     wxImage        m_buffer;
 172     bool           m_needUpdate;
 173     wxList         m_updateRects;
 174     wxList         m_objects;
 175     unsigned char  m_green,m_red,m_blue;
 176
 177     friend class wxCanvasObject;
 178
 179 private:
 180     void OnChar( wxKeyEvent &event );
 181     void OnPaint( wxPaintEvent &event );
 182     void OnMouse( wxMouseEvent &event );
 183     void OnSize( wxSizeEvent &event );
 184     void OnIdle( wxIdleEvent &event );
 185     void OnSetFocus( wxFocusEvent &event );
 186     void OnKillFocus( wxFocusEvent &event );
 187
 188 private:
 189     DECLARE_CLASS(wxCanvas)
 190     DECLARE_EVENT_TABLE()
 191 };
 192
 193
 194 #endif
 195     // WXCANVAS
 196