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 bool IsHit( int x, int y, int margin = 0 );
  38
  39     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
  40     virtual void WriteSVG( wxTextOutputStream &stream );
  41
  42     wxCanvas   *GetOwner()              { return m_owner; }
  43     void SetOwner( wxCanvas *owner )    { m_owner = owner; }
  44
  45     bool        IsControl()     { return m_isControl; }
  46     bool        IsVector()      { return m_isVector; }
  47     bool        IsImage()       { return m_isImage; }
  48     inline int  GetX()          { return m_area.x; }
  49     inline int  GetY()          { return m_area.y; }
  50     inline int  GetWidth()      { return m_area.width; }
  51     inline int  GetHeight()     { return m_area.height; }
  52
  53 protected:
  54     wxCanvas   *m_owner;
  55     bool        m_isControl;
  56     bool        m_isVector;
  57     bool        m_isImage;
  58     wxRect      m_area;
  59
  60     friend class wxCanvas;
  61 };
  62
  63 //----------------------------------------------------------------------------
  64 // wxCanvasRect
  65 //----------------------------------------------------------------------------
  66
  67 class wxCanvasRect: public wxCanvasObject
  68 {
  69 public:
  70     wxCanvasRect( int x, int y, int w, int h, unsigned char red, unsigned char green, unsigned char blue );
  71
  72     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
  73     virtual void WriteSVG( wxTextOutputStream &stream );
  74
  75 private:
  76     unsigned char m_red;
  77     unsigned char m_green;
  78     unsigned char m_blue;
  79 };
  80
  81 //----------------------------------------------------------------------------
  82 // wxCanvasLine
  83 //----------------------------------------------------------------------------
  84
  85 class wxCanvasLine: public wxCanvasObject
  86 {
  87 public:
  88     wxCanvasLine( int x, int y, int w, int h, unsigned char red, unsigned char green, unsigned char blue );
  89
  90     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
  91     virtual void WriteSVG( wxTextOutputStream &stream );
  92
  93 private:
  94     unsigned char m_red;
  95     unsigned char m_green;
  96     unsigned char m_blue;
  97 };
  98
  99 //----------------------------------------------------------------------------
 100 // wxCanvasImage
 101 //----------------------------------------------------------------------------
 102
 103 class wxCanvasImage: public wxCanvasObject
 104 {
 105 public:
 106     wxCanvasImage( const wxImage &image, int x, int y );
 107
 108     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
 109     virtual void WriteSVG( wxTextOutputStream &stream );
 110
 111 private:
 112     wxImage     m_image;
 113 };
 114
 115 //----------------------------------------------------------------------------
 116 // wxCanvasControl
 117 //----------------------------------------------------------------------------
 118
 119 class wxCanvasControl: public wxCanvasObject
 120 {
 121 public:
 122     wxCanvasControl( wxWindow *control );
 123     ~wxCanvasControl();
 124
 125     virtual void Move( int x, int y );
 126     void UpdateSize();
 127
 128 private:
 129     wxWindow     *m_control;
 130 };
 131
 132 //----------------------------------------------------------------------------
 133 // wxCanvasText
 134 //----------------------------------------------------------------------------
 135
 136 class wxCanvasText: public wxCanvasObject
 137 {
 138 public:
 139     wxCanvasText( const wxString &text, int x, int y, const wxString &foneFile, int size );
 140     ~wxCanvasText();
 141
 142     virtual void Render( int clip_x, int clip_y, int clip_width, int clip_height );
 143     virtual void WriteSVG( wxTextOutputStream &stream );
 144
 145     void CreateBuffer();
 146     void SetRGB( unsigned char red, unsigned char green, unsigned char blue );
 147     void SetFlag( int flag );
 148     int GetFlag()              { return m_flag; }
 149
 150 private:
 151     wxString        m_text;
 152     unsigned char  *m_alpha;
 153     void           *m_faceData;
 154     int             m_flag;
 155     int             m_red;
 156     int             m_green;
 157     int             m_blue;
 158     wxString        m_fontFileName;
 159     int             m_size;
 160 };
 161
 162 //----------------------------------------------------------------------------
 163 // wxCanvas
 164 //----------------------------------------------------------------------------
 165
 166 class wxCanvas: public wxScrolledWindow
 167 {
 168 public:
 169     // constructors and destructors
 170     wxCanvas( wxWindow *parent, wxWindowID id = -1,
 171         const wxPoint& pos = wxDefaultPosition,
 172         const wxSize& size = wxDefaultSize,
 173         long style = wxScrolledWindowStyle );
 174     virtual ~wxCanvas();
 175
 176     virtual void SetArea( int width, int height );
 177     virtual void SetColour( unsigned char red, unsigned char green, unsigned char blue );
 178     virtual void Update( int x, int y, int width, int height );
 179     virtual void UpdateNow();
 180
 181     virtual void Freeze();
 182     virtual void Thaw();
 183
 184     virtual void Prepend( wxCanvasObject* obj );
 185     virtual void Append( wxCanvasObject* obj );
 186     virtual void Insert( size_t before, wxCanvasObject* obj );
 187     virtual void Remove( wxCanvasObject* obj );
 188
 189     wxImage *GetBuffer()         { return &m_buffer; }
 190     bool NeedUpdate()            { return m_needUpdate; }
 191
 192     void BlitBuffer( wxDC &dc );
 193
 194 private:
 195     wxImage          m_buffer;
 196     bool             m_needUpdate;
 197     wxList           m_updateRects;
 198     wxList           m_objects;
 199     unsigned char    m_green,m_red,m_blue;
 200     bool             m_frozen;
 201     wxCanvasObject  *m_lastMouse;
 202
 203
 204     friend class wxCanvasObject;
 205
 206 private:
 207     void OnChar( wxKeyEvent &event );
 208     void OnPaint( wxPaintEvent &event );
 209     void OnMouse( wxMouseEvent &event );
 210     void OnSize( wxSizeEvent &event );
 211     void OnIdle( wxIdleEvent &event );
 212     void OnSetFocus( wxFocusEvent &event );
 213     void OnKillFocus( wxFocusEvent &event );
 214
 215 private:
 216     DECLARE_CLASS(wxCanvas)
 217     DECLARE_EVENT_TABLE()
 218 };
 219
 220
 221 #endif
 222     // WXCANVAS
 223