include/wx/sizer.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        sizer.h
   3 // Purpose:     provide wxSizer class for layouting
   4 // Author:      Robert Roebling and Robin Dunn
   5 // Modified by:
   6 // Created:
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Robin Dunn, Dirk Holtwick and Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __WXSIZER_H__
  13 #define __WXSIZER_H__
  14
  15 #ifdef __GNUG__
  16 #pragma interface "sizer.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20
  21 #include "wx/window.h"
  22 #include "wx/frame.h"
  23 #include "wx/dialog.h"
  24
  25 //---------------------------------------------------------------------------
  26 // classes
  27 //---------------------------------------------------------------------------
  28
  29 class wxStaticBox;
  30 class wxNotebook;
  31
  32 class wxSizerItem;
  33 class wxSizer;
  34 class wxBoxSizer;
  35 class wxStaticBoxSizer;
  36
  37 //---------------------------------------------------------------------------
  38 // wxSizerItem
  39 //---------------------------------------------------------------------------
  40
  41 class WXDLLEXPORT wxSizerItem: public wxObject
  42 {
  43     DECLARE_CLASS(wxSizerItem);
  44 public:
  45   // spacer
  46   wxSizerItem( int width, int height, int option, int flag, int border, wxObject* userData);
  47
  48   // window
  49   wxSizerItem( wxWindow *window, int option, int flag, int border, wxObject* userData );
  50
  51   // subsizer
  52   wxSizerItem( wxSizer *sizer, int option, int flag, int border, wxObject* userData );
  53
  54   ~wxSizerItem();
  55
  56   virtual wxSize GetSize();
  57   virtual wxSize CalcMin();
  58   virtual void SetDimension( wxPoint pos, wxSize size );
  59
  60   void SetRatio( int width, int height )
  61     // if either of dimensions is zero, ratio is assumed to be 1
  62     // to avoid "divide by zero" errors
  63     { m_ratio = (width && height) ? ((float) width / (float) height) : 1; }
  64   void SetRatio( wxSize size )
  65     { m_ratio = (size.x && size.y) ? ((float) size.x / (float) size.y) : 1; }
  66   void SetRatio( float ratio ) { m_ratio = ratio; }
  67   float GetRatio() const { return m_ratio; }
  68
  69   bool IsWindow();
  70   bool IsSizer();
  71   bool IsSpacer();
  72
  73   wxWindow *GetWindow() const
  74     { return m_window; }
  75   wxSizer *GetSizer() const
  76     { return m_sizer; }
  77   int GetOption() const
  78     { return m_option; }
  79   int GetFlag() const
  80     { return m_flag; }
  81   int GetBorder() const
  82     { return m_border; }
  83   wxObject* GetUserData()
  84     { return m_userData; }
  85
  86 protected:
  87   wxWindow    *m_window;
  88   wxSizer     *m_sizer;
  89   wxSize       m_size;
  90   wxSize       m_minSize;
  91   int          m_option;
  92   int          m_border;
  93   int          m_flag;
  94   // als: aspect ratio can always be calculated from m_size,
  95   //      but this would cause precision loss when the window
  96   //      is shrinked.  it is safer to preserve initial value.
  97   float        m_ratio;
  98   wxObject    *m_userData;
  99 };
 100
 101 //---------------------------------------------------------------------------
 102 // wxSizer
 103 //---------------------------------------------------------------------------
 104
 105 class WXDLLEXPORT wxSizer: public wxObject
 106 {
 107     DECLARE_CLASS(wxSizer);
 108 public:
 109    wxSizer();
 110    ~wxSizer();
 111
 112    virtual void Add( wxWindow *window, int option = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
 113    virtual void Add( wxSizer *sizer, int option = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
 114    virtual void Add( int width, int height, int option = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
 115
 116    virtual void Prepend( wxWindow *window, int option = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
 117    virtual void Prepend( wxSizer *sizer, int option = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
 118    virtual void Prepend( int width, int height, int option = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
 119
 120    virtual bool Remove( wxWindow *window );
 121    virtual bool Remove( wxSizer *sizer );
 122    virtual bool Remove( int pos );
 123
 124    void SetDimension( int x, int y, int width, int height );
 125
 126    wxSize GetSize()
 127      { return m_size; }
 128    wxPoint GetPosition()
 129      { return m_position; }
 130    wxSize GetMinSize()
 131      { return CalcMin(); }
 132
 133    virtual void RecalcSizes() = 0;
 134    virtual wxSize CalcMin() = 0;
 135
 136    virtual void Layout();
 137
 138    void Fit( wxWindow *window );
 139    void SetSizeHints( wxWindow *window );
 140
 141   wxList& GetChildren()
 142     { return m_children; }
 143
 144 protected:
 145    wxSize  m_size;
 146    wxPoint m_position;
 147    wxList  m_children;
 148
 149    wxSize GetMinWindowSize( wxWindow *window );
 150 };
 151
 152 //---------------------------------------------------------------------------
 153 // wxBoxSizer
 154 //---------------------------------------------------------------------------
 155
 156 class WXDLLEXPORT wxBoxSizer: public wxSizer
 157 {
 158     DECLARE_CLASS(wxBoxSizer);
 159 public:
 160    wxBoxSizer( int orient );
 161
 162    void RecalcSizes();
 163    wxSize CalcMin();
 164
 165    int GetOrientation()
 166      { return m_orient; }
 167
 168 protected:
 169     int m_orient;
 170     int m_stretchable;
 171     int m_minWidth;
 172     int m_minHeight;
 173     int m_fixedWidth;
 174     int m_fixedHeight;
 175 };
 176
 177 //---------------------------------------------------------------------------
 178 // wxStaticBoxSizer
 179 //---------------------------------------------------------------------------
 180
 181 class WXDLLEXPORT wxStaticBoxSizer: public wxBoxSizer
 182 {
 183     DECLARE_CLASS(wxStaticBoxSizer);
 184 public:
 185    wxStaticBoxSizer( wxStaticBox *box, int orient );
 186
 187    void RecalcSizes();
 188    wxSize CalcMin();
 189
 190    wxStaticBox *GetStaticBox()
 191      { return m_staticBox; }
 192
 193 protected:
 194    wxStaticBox   *m_staticBox;
 195 };
 196
 197 //---------------------------------------------------------------------------
 198 // wxNotebookSizer
 199 //---------------------------------------------------------------------------
 200
 201 class WXDLLEXPORT wxNotebookSizer: public wxSizer
 202 {
 203     DECLARE_CLASS(wxNotebookSizer);
 204 public:
 205    wxNotebookSizer( wxNotebook *nb );
 206
 207    void RecalcSizes();
 208    wxSize CalcMin();
 209
 210    wxNotebook *GetNotebook()
 211      { return m_notebook; }
 212
 213 protected:
 214    wxNotebook   *m_notebook;
 215 };
 216
 217 #endif
 218   // __WXSIZER_H__