include/wx/sizer.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/sizer.h
   3 // Purpose:     provide wxSizer class for layout
   4 // Author:      Robert Roebling and Robin Dunn
   5 // Modified by: Ron Lee, Vadim Zeitlin (wxSizerFlags)
   6 // Created:
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Robin Dunn, Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __WXSIZER_H__
  13 #define __WXSIZER_H__
  14
  15 #include "wx/defs.h"
  16
  17 #include "wx/window.h"
  18
  19 //---------------------------------------------------------------------------
  20 // classes
  21 //---------------------------------------------------------------------------
  22
  23 class WXDLLEXPORT wxButton;
  24 class WXDLLEXPORT wxBoxSizer;
  25 class WXDLLEXPORT wxSizerItem;
  26 class WXDLLEXPORT wxSizer;
  27
  28 #ifndef wxUSE_BORDER_BY_DEFAULT
  29     #ifdef __SMARTPHONE__
  30         // no borders by default on limited size screen
  31         #define wxUSE_BORDER_BY_DEFAULT 0
  32     #else
  33         #define wxUSE_BORDER_BY_DEFAULT 1
  34     #endif
  35 #endif
  36
  37 // ----------------------------------------------------------------------------
  38 // wxSizerFlags: flags used for an item in the sizer
  39 // ----------------------------------------------------------------------------
  40
  41 class WXDLLEXPORT wxSizerFlags
  42 {
  43 public:
  44     // construct the flags object initialized with the given proportion (0 by
  45     // default)
  46     wxSizerFlags(int proportion = 0) : m_proportion(proportion)
  47     {
  48         m_flags = 0;
  49         m_borderInPixels = 0;
  50     }
  51
  52     // setters for all sizer flags, they all return the object itself so that
  53     // calls to them can be chained
  54
  55     wxSizerFlags& Proportion(int proportion)
  56     {
  57         m_proportion = proportion;
  58         return *this;
  59     }
  60
  61     wxSizerFlags& Align(int alignment) // combination of wxAlignment values
  62     {
  63         m_flags &= ~wxALIGN_MASK;
  64         m_flags |= alignment;
  65
  66         return *this;
  67     }
  68
  69     wxSizerFlags& Expand()
  70     {
  71         m_flags |= wxEXPAND;
  72         return *this;
  73     }
  74
  75     // some shortcuts for Align()
  76     wxSizerFlags& Centre() { return Align(wxALIGN_CENTRE); }
  77     wxSizerFlags& Center() { return Centre(); }
  78     wxSizerFlags& Top() { return Align(wxALIGN_TOP); }
  79     wxSizerFlags& Left() { return Align(wxALIGN_LEFT); }
  80     wxSizerFlags& Right() { return Align(wxALIGN_RIGHT); }
  81     wxSizerFlags& Bottom() { return Align(wxALIGN_BOTTOM); }
  82
  83     // default border size used by Border() below
  84     static int GetDefaultBorder()
  85     {
  86 #if wxUSE_BORDER_BY_DEFAULT
  87         // FIXME: default border size shouldn't be hardcoded and at the very
  88         //        least they should depend on the current font size
  89         return 5;
  90 #else
  91         return 0;
  92 #endif
  93     }
  94
  95
  96     wxSizerFlags& Border(int direction, int borderInPixels)
  97     {
  98         m_flags &= ~wxALL;
  99         m_flags |= direction;
 100
 101         m_borderInPixels = borderInPixels;
 102
 103         return *this;
 104     }
 105
 106     wxSizerFlags& Border(int direction = wxALL)
 107     {
 108 #if wxUSE_BORDER_BY_DEFAULT
 109         return Border(direction, GetDefaultBorder());
 110 #else
 111         // no borders by default on limited size screen
 112         wxUnusedVar(direction);
 113
 114         return *this;
 115 #endif
 116     }
 117
 118     wxSizerFlags& DoubleBorder(int direction = wxALL)
 119     {
 120 #if wxUSE_BORDER_BY_DEFAULT
 121         return Border(direction, 2*GetDefaultBorder());
 122 #else
 123         wxUnusedVar(direction);
 124
 125         return *this;
 126 #endif
 127     }
 128
 129     wxSizerFlags& TripleBorder(int direction = wxALL)
 130     {
 131 #if wxUSE_BORDER_BY_DEFAULT
 132         return Border(direction, 3*GetDefaultBorder());
 133 #else
 134         wxUnusedVar(direction);
 135
 136         return *this;
 137 #endif
 138     }
 139
 140     wxSizerFlags& HorzBorder()
 141     {
 142 #if wxUSE_BORDER_BY_DEFAULT
 143         return Border(wxLEFT | wxRIGHT, GetDefaultBorder());
 144 #else
 145         return *this;
 146 #endif
 147     }
 148
 149     wxSizerFlags& DoubleHorzBorder()
 150     {
 151 #if wxUSE_BORDER_BY_DEFAULT
 152         return Border(wxLEFT | wxRIGHT, 2*GetDefaultBorder());
 153 #else
 154         return *this;
 155 #endif
 156     }
 157
 158     // setters for the others flags
 159     wxSizerFlags& Shaped()
 160     {
 161         m_flags |= wxSHAPED;
 162
 163         return *this;
 164     }
 165
 166     wxSizerFlags& FixedMinSize()
 167     {
 168         m_flags |= wxFIXED_MINSIZE;
 169
 170         return *this;
 171     }
 172
 173     // accessors for wxSizer only
 174     int GetProportion() const { return m_proportion; }
 175     int GetFlags() const { return m_flags; }
 176     int GetBorderInPixels() const { return m_borderInPixels; }
 177
 178 private:
 179     int m_proportion;
 180     int m_flags;
 181     int m_borderInPixels;
 182 };
 183
 184
 185 // ----------------------------------------------------------------------------
 186 // wxSizerSpacer: used by wxSizerItem to represent a spacer
 187 // ----------------------------------------------------------------------------
 188
 189 class WXDLLEXPORT wxSizerSpacer
 190 {
 191 public:
 192     wxSizerSpacer(const wxSize& size) : m_size(size), m_isShown(true) { }
 193
 194     void SetSize(const wxSize& size) { m_size = size; }
 195     const wxSize& GetSize() const { return m_size; }
 196
 197     void Show(bool show) { m_isShown = show; }
 198     bool IsShown() const { return m_isShown; }
 199
 200 private:
 201     // the size, in pixel
 202     wxSize m_size;
 203
 204     // is the spacer currently shown?
 205     bool m_isShown;
 206 };
 207
 208 // ----------------------------------------------------------------------------
 209 // wxSizerItem
 210 // ----------------------------------------------------------------------------
 211
 212 class WXDLLEXPORT wxSizerItem : public wxObject
 213 {
 214 public:
 215     // window
 216     wxSizerItem( wxWindow *window,
 217                  int proportion,
 218                  int flag,
 219                  int border,
 220                  wxObject* userData );
 221
 222     // window with flags
 223     wxSizerItem(wxWindow *window, const wxSizerFlags& flags)
 224     {
 225         Init(flags);
 226
 227         DoSetWindow(window);
 228     }
 229
 230     // subsizer
 231     wxSizerItem( wxSizer *sizer,
 232                  int proportion,
 233                  int flag,
 234                  int border,
 235                  wxObject* userData );
 236
 237     // sizer with flags
 238     wxSizerItem(wxSizer *sizer, const wxSizerFlags& flags)
 239     {
 240         Init(flags);
 241
 242         DoSetSizer(sizer);
 243     }
 244
 245     // spacer
 246     wxSizerItem( int width,
 247                  int height,
 248                  int proportion,
 249                  int flag,
 250                  int border,
 251                  wxObject* userData);
 252
 253     // spacer with flags
 254     wxSizerItem(int width, int height, const wxSizerFlags& flags)
 255     {
 256         Init(flags);
 257
 258         DoSetSpacer(wxSize(width, height));
 259     }
 260
 261     wxSizerItem();
 262     virtual ~wxSizerItem();
 263
 264     virtual void DeleteWindows();
 265
 266     // Enable deleting the SizerItem without destroying the contained sizer.
 267     void DetachSizer() { m_sizer = NULL; }
 268
 269     virtual wxSize GetSize() const;
 270     virtual wxSize CalcMin();
 271     virtual void SetDimension( const wxPoint& pos, const wxSize& size );
 272
 273     wxSize GetMinSize() const
 274         { return m_minSize; }
 275     wxSize GetMinSizeWithBorder() const;
 276
 277     void SetMinSize(const wxSize& size)
 278     {
 279         if ( IsWindow() )
 280             m_window->SetMinSize(size);
 281         m_minSize = size;
 282     }
 283     void SetMinSize( int x, int y )
 284         { SetMinSize(wxSize(x, y)); }
 285     void SetInitSize( int x, int y )
 286         { SetMinSize(wxSize(x, y)); }
 287
 288     // if either of dimensions is zero, ratio is assumed to be 1
 289     // to avoid "divide by zero" errors
 290     void SetRatio(int width, int height)
 291         { m_ratio = (width && height) ? ((float) width / (float) height) : 1; }
 292     void SetRatio(const wxSize& size)
 293         { SetRatio(size.x, size.y); }
 294     void SetRatio(float ratio)
 295         { m_ratio = ratio; }
 296     float GetRatio() const
 297         { return m_ratio; }
 298
 299     virtual wxRect GetRect() { return m_rect; }
 300
 301     bool IsWindow() const { return m_kind == Item_Window; }
 302     bool IsSizer() const { return m_kind == Item_Sizer; }
 303     bool IsSpacer() const { return m_kind == Item_Spacer; }
 304
 305 #if WXWIN_COMPATIBILITY_2_6
 306     // Deprecated in 2.6, use {G,S}etProportion instead.
 307     wxDEPRECATED( void SetOption( int option ) );
 308     wxDEPRECATED( int GetOption() const );
 309 #endif // WXWIN_COMPATIBILITY_2_6
 310
 311     void SetProportion( int proportion )
 312         { m_proportion = proportion; }
 313     int GetProportion() const
 314         { return m_proportion; }
 315     void SetFlag( int flag )
 316         { m_flag = flag; }
 317     int GetFlag() const
 318         { return m_flag; }
 319     void SetBorder( int border )
 320         { m_border = border; }
 321     int GetBorder() const
 322         { return m_border; }
 323
 324     wxWindow *GetWindow() const
 325         { return m_kind == Item_Window ? m_window : NULL; }
 326     wxSizer *GetSizer() const
 327         { return m_kind == Item_Sizer ? m_sizer : NULL; }
 328     wxSize GetSpacer() const;
 329
 330     // this function behaves obviously for the windows and spacers but for the
 331     // sizers it returns true if any sizer element is shown and only returns
 332     // false if all of them are hidden
 333     bool IsShown() const;
 334     void Show(bool show);
 335
 336     void SetUserData(wxObject* userData)
 337         { delete m_userData; m_userData = userData; }
 338     wxObject* GetUserData() const
 339         { return m_userData; }
 340     wxPoint GetPosition() const
 341         { return m_pos; }
 342
 343     // these functions delete the current contents of the item if it's a sizer
 344     // or a spacer but not if it is a window
 345     void AssignWindow(wxWindow *window)
 346     {
 347         Free();
 348         DoSetWindow(window);
 349     }
 350
 351     void AssignSizer(wxSizer *sizer)
 352     {
 353         Free();
 354         DoSetSizer(sizer);
 355     }
 356
 357     void AssignSpacer(const wxSize& size)
 358     {
 359         Free();
 360         DoSetSpacer(size);
 361     }
 362
 363     void AssignSpacer(int w, int h) { AssignSpacer(wxSize(w, h)); }
 364
 365 #if WXWIN_COMPATIBILITY_2_8
 366     // these functions do not free the old sizer/spacer and so can easily
 367     // provoke the memory leaks and so shouldn't be used, use Assign() instead
 368     wxDEPRECATED( void SetWindow(wxWindow *window) );
 369     wxDEPRECATED( void SetSizer(wxSizer *sizer) );
 370     wxDEPRECATED( void SetSpacer(const wxSize& size) );
 371     wxDEPRECATED( void SetSpacer(int width, int height) );
 372 #endif // WXWIN_COMPATIBILITY_2_8
 373
 374 protected:
 375     // common part of several ctors
 376     void Init() { m_userData = NULL; m_kind = Item_None; }
 377
 378     // common part of ctors taking wxSizerFlags
 379     void Init(const wxSizerFlags& flags);
 380
 381     // free current contents
 382     void Free();
 383
 384     // common parts of Set/AssignXXX()
 385     void DoSetWindow(wxWindow *window);
 386     void DoSetSizer(wxSizer *sizer);
 387     void DoSetSpacer(const wxSize& size);
 388
 389     // discriminated union: depending on m_kind one of the fields is valid
 390     enum
 391     {
 392         Item_None,
 393         Item_Window,
 394         Item_Sizer,
 395         Item_Spacer,
 396         Item_Max
 397     } m_kind;
 398     union
 399     {
 400         wxWindow      *m_window;
 401         wxSizer       *m_sizer;
 402         wxSizerSpacer *m_spacer;
 403     };
 404
 405     wxPoint      m_pos;
 406     wxSize       m_minSize;
 407     int          m_proportion;
 408     int          m_border;
 409     int          m_flag;
 410
 411     // on screen rectangle of this item (not including borders)
 412     wxRect       m_rect;
 413
 414     // Aspect ratio can always be calculated from m_size,
 415     // but this would cause precision loss when the window
 416     // is shrunk.  It is safer to preserve the initial value.
 417     float        m_ratio;
 418
 419     wxObject    *m_userData;
 420
 421 private:
 422     DECLARE_CLASS(wxSizerItem)
 423     DECLARE_NO_COPY_CLASS(wxSizerItem)
 424 };
 425
 426 WX_DECLARE_EXPORTED_LIST( wxSizerItem, wxSizerItemList );
 427
 428
 429 //---------------------------------------------------------------------------
 430 // wxSizer
 431 //---------------------------------------------------------------------------
 432
 433 class WXDLLEXPORT wxSizer: public wxObject, public wxClientDataContainer
 434 {
 435 public:
 436     wxSizer() { m_containingWindow = NULL; }
 437     virtual ~wxSizer();
 438
 439     // methods for adding elements to the sizer: there are Add/Insert/Prepend
 440     // overloads for each of window/sizer/spacer/wxSizerItem
 441     wxSizerItem* Add(wxWindow *window,
 442                      int proportion = 0,
 443                      int flag = 0,
 444                      int border = 0,
 445                      wxObject* userData = NULL);
 446     wxSizerItem* Add(wxSizer *sizer,
 447                      int proportion = 0,
 448                      int flag = 0,
 449                      int border = 0,
 450                      wxObject* userData = NULL);
 451     wxSizerItem* Add(int width,
 452                      int height,
 453                      int proportion = 0,
 454                      int flag = 0,
 455                      int border = 0,
 456                      wxObject* userData = NULL);
 457     wxSizerItem* Add( wxWindow *window, const wxSizerFlags& flags);
 458     wxSizerItem* Add( wxSizer *sizer, const wxSizerFlags& flags);
 459     wxSizerItem* Add( wxSizerItem *item);
 460
 461     wxSizerItem* AddSpacer(int size);
 462     wxSizerItem* AddStretchSpacer(int prop = 1);
 463
 464     wxSizerItem* Insert(size_t index,
 465                         wxWindow *window,
 466                         int proportion = 0,
 467                         int flag = 0,
 468                         int border = 0,
 469                         wxObject* userData = NULL);
 470     wxSizerItem* Insert(size_t index,
 471                         wxSizer *sizer,
 472                         int proportion = 0,
 473                         int flag = 0,
 474                         int border = 0,
 475                         wxObject* userData = NULL);
 476     wxSizerItem* Insert(size_t index,
 477                         int width,
 478                         int height,
 479                         int proportion = 0,
 480                         int flag = 0,
 481                         int border = 0,
 482                         wxObject* userData = NULL);
 483     wxSizerItem* Insert(size_t index,
 484                         wxWindow *window,
 485                         const wxSizerFlags& flags);
 486     wxSizerItem* Insert(size_t index,
 487                         wxSizer *sizer,
 488                         const wxSizerFlags& flags);
 489     virtual wxSizerItem* Insert( size_t index, wxSizerItem *item);
 490
 491     wxSizerItem* InsertSpacer(size_t index, int size);
 492     wxSizerItem* InsertStretchSpacer(size_t index, int prop = 1);
 493
 494     wxSizerItem* Prepend(wxWindow *window,
 495                          int proportion = 0,
 496                          int flag = 0,
 497                          int border = 0,
 498                          wxObject* userData = NULL);
 499     wxSizerItem* Prepend(wxSizer *sizer,
 500                          int proportion = 0,
 501                          int flag = 0,
 502                          int border = 0,
 503                          wxObject* userData = NULL);
 504     wxSizerItem* Prepend(int width,
 505                          int height,
 506                          int proportion = 0,
 507                          int flag = 0,
 508                          int border = 0,
 509                          wxObject* userData = NULL);
 510     wxSizerItem* Prepend(wxWindow *window, const wxSizerFlags& flags);
 511     wxSizerItem* Prepend(wxSizer *sizer, const wxSizerFlags& flags);
 512     wxSizerItem* Prepend(wxSizerItem *item);
 513
 514     wxSizerItem* PrependSpacer(int size);
 515     wxSizerItem* PrependStretchSpacer(int prop = 1);
 516
 517     // set (or possibly unset if window is NULL) or get the window this sizer
 518     // is used in
 519     void SetContainingWindow(wxWindow *window);
 520     wxWindow *GetContainingWindow() const { return m_containingWindow; }
 521
 522 #if WXWIN_COMPATIBILITY_2_6
 523     // Deprecated in 2.6 since historically it does not delete the window,
 524     // use Detach instead.
 525     wxDEPRECATED( virtual bool Remove( wxWindow *window ) );
 526 #endif // WXWIN_COMPATIBILITY_2_6
 527
 528     virtual bool Remove( wxSizer *sizer );
 529     virtual bool Remove( int index );
 530
 531     virtual bool Detach( wxWindow *window );
 532     virtual bool Detach( wxSizer *sizer );
 533     virtual bool Detach( int index );
 534
 535     virtual bool Replace( wxWindow *oldwin, wxWindow *newwin, bool recursive = false );
 536     virtual bool Replace( wxSizer *oldsz, wxSizer *newsz, bool recursive = false );
 537     virtual bool Replace( size_t index, wxSizerItem *newitem );
 538
 539     virtual void Clear( bool delete_windows = false );
 540     virtual void DeleteWindows();
 541
 542     void SetMinSize( int width, int height )
 543         { DoSetMinSize( width, height ); }
 544     void SetMinSize( const wxSize& size )
 545         { DoSetMinSize( size.x, size.y ); }
 546
 547     // Searches recursively
 548     bool SetItemMinSize( wxWindow *window, int width, int height )
 549         { return DoSetItemMinSize( window, width, height ); }
 550     bool SetItemMinSize( wxWindow *window, const wxSize& size )
 551         { return DoSetItemMinSize( window, size.x, size.y ); }
 552
 553     // Searches recursively
 554     bool SetItemMinSize( wxSizer *sizer, int width, int height )
 555         { return DoSetItemMinSize( sizer, width, height ); }
 556     bool SetItemMinSize( wxSizer *sizer, const wxSize& size )
 557         { return DoSetItemMinSize( sizer, size.x, size.y ); }
 558
 559     bool SetItemMinSize( size_t index, int width, int height )
 560         { return DoSetItemMinSize( index, width, height ); }
 561     bool SetItemMinSize( size_t index, const wxSize& size )
 562         { return DoSetItemMinSize( index, size.x, size.y ); }
 563
 564     wxSize GetSize() const
 565         { return m_size; }
 566     wxPoint GetPosition() const
 567         { return m_position; }
 568
 569     // Calculate the minimal size or return m_minSize if bigger.
 570     wxSize GetMinSize();
 571
 572     // These virtual functions are used by the layout algorithm: first
 573     // CalcMin() is called to calculate the minimal size of the sizer and
 574     // prepare for laying it out and then RecalcSizes() is called to really
 575     // update all the sizer items
 576     virtual wxSize CalcMin() = 0;
 577     virtual void RecalcSizes() = 0;
 578
 579     virtual void Layout();
 580
 581     wxSize Fit( wxWindow *window );
 582     void FitInside( wxWindow *window );
 583     void SetSizeHints( wxWindow *window );
 584     void SetVirtualSizeHints( wxWindow *window );
 585
 586     wxSizerItemList& GetChildren()
 587         { return m_children; }
 588     const wxSizerItemList& GetChildren() const
 589         { return m_children; }
 590
 591     void SetDimension( int x, int y, int width, int height );
 592
 593     wxSizerItem* GetItem( wxWindow *window, bool recursive = false );
 594     wxSizerItem* GetItem( wxSizer *sizer, bool recursive = false );
 595     wxSizerItem* GetItem( size_t index );
 596
 597     // Manage whether individual scene items are considered
 598     // in the layout calculations or not.
 599     bool Show( wxWindow *window, bool show = true, bool recursive = false );
 600     bool Show( wxSizer *sizer, bool show = true, bool recursive = false );
 601     bool Show( size_t index, bool show = true );
 602
 603     bool Hide( wxSizer *sizer, bool recursive = false )
 604         { return Show( sizer, false, recursive ); }
 605     bool Hide( wxWindow *window, bool recursive = false )
 606         { return Show( window, false, recursive ); }
 607     bool Hide( size_t index )
 608         { return Show( index, false ); }
 609
 610     bool IsShown( wxWindow *window ) const;
 611     bool IsShown( wxSizer *sizer ) const;
 612     bool IsShown( size_t index ) const;
 613
 614     // Recursively call wxWindow::Show () on all sizer items.
 615     virtual void ShowItems (bool show);
 616
 617     void Show(bool show) { ShowItems(show); }
 618
 619 protected:
 620     wxSize              m_size;
 621     wxSize              m_minSize;
 622     wxPoint             m_position;
 623     wxSizerItemList     m_children;
 624
 625     // the window this sizer is used in, can be NULL
 626     wxWindow *m_containingWindow;
 627
 628     wxSize GetMaxWindowSize( wxWindow *window ) const;
 629     wxSize GetMinWindowSize( wxWindow *window );
 630     wxSize GetMaxClientSize( wxWindow *window ) const;
 631     wxSize GetMinClientSize( wxWindow *window );
 632     wxSize VirtualFitSize( wxWindow *window );
 633
 634     virtual void DoSetMinSize( int width, int height );
 635     virtual bool DoSetItemMinSize( wxWindow *window, int width, int height );
 636     virtual bool DoSetItemMinSize( wxSizer *sizer, int width, int height );
 637     virtual bool DoSetItemMinSize( size_t index, int width, int height );
 638
 639 private:
 640     DECLARE_CLASS(wxSizer)
 641 };
 642
 643 //---------------------------------------------------------------------------
 644 // wxGridSizer
 645 //---------------------------------------------------------------------------
 646
 647 class WXDLLEXPORT wxGridSizer: public wxSizer
 648 {
 649 public:
 650     wxGridSizer( int rows, int cols, int vgap, int hgap );
 651     wxGridSizer( int cols, int vgap = 0, int hgap = 0 );
 652
 653     virtual void RecalcSizes();
 654     virtual wxSize CalcMin();
 655
 656     void SetCols( int cols )    { m_cols = cols; }
 657     void SetRows( int rows )    { m_rows = rows; }
 658     void SetVGap( int gap )     { m_vgap = gap; }
 659     void SetHGap( int gap )     { m_hgap = gap; }
 660     int GetCols() const         { return m_cols; }
 661     int GetRows() const         { return m_rows; }
 662     int GetVGap() const         { return m_vgap; }
 663     int GetHGap() const         { return m_hgap; }
 664
 665 protected:
 666     int    m_rows;
 667     int    m_cols;
 668     int    m_vgap;
 669     int    m_hgap;
 670
 671     // return the number of total items and the number of columns and rows
 672     int CalcRowsCols(int& rows, int& cols) const;
 673
 674     void SetItemBounds( wxSizerItem *item, int x, int y, int w, int h );
 675
 676 private:
 677     DECLARE_CLASS(wxGridSizer)
 678 };
 679
 680 //---------------------------------------------------------------------------
 681 // wxFlexGridSizer
 682 //---------------------------------------------------------------------------
 683
 684 // the bevaiour for resizing wxFlexGridSizer cells in the "non-flexible"
 685 // direction
 686 enum wxFlexSizerGrowMode
 687 {
 688     // don't resize the cells in non-flexible direction at all
 689     wxFLEX_GROWMODE_NONE,
 690
 691     // uniformly resize only the specified ones (default)
 692     wxFLEX_GROWMODE_SPECIFIED,
 693
 694     // uniformly resize all cells
 695     wxFLEX_GROWMODE_ALL
 696 };
 697
 698 class WXDLLEXPORT wxFlexGridSizer: public wxGridSizer
 699 {
 700 public:
 701     // ctors/dtor
 702     wxFlexGridSizer( int rows, int cols, int vgap, int hgap );
 703     wxFlexGridSizer( int cols, int vgap = 0, int hgap = 0 );
 704     virtual ~wxFlexGridSizer();
 705
 706
 707     // set the rows/columns which will grow (the others will remain of the
 708     // constant initial size)
 709     void AddGrowableRow( size_t idx, int proportion = 0 );
 710     void RemoveGrowableRow( size_t idx );
 711     void AddGrowableCol( size_t idx, int proportion = 0 );
 712     void RemoveGrowableCol( size_t idx );
 713
 714
 715     // the sizer cells may grow in both directions, not grow at all or only
 716     // grow in one direction but not the other
 717
 718     // the direction may be wxVERTICAL, wxHORIZONTAL or wxBOTH (default)
 719     void SetFlexibleDirection(int direction) { m_flexDirection = direction; }
 720     int GetFlexibleDirection() const { return m_flexDirection; }
 721
 722     // note that the grow mode only applies to the direction which is not
 723     // flexible
 724     void SetNonFlexibleGrowMode(wxFlexSizerGrowMode mode) { m_growMode = mode; }
 725     wxFlexSizerGrowMode GetNonFlexibleGrowMode() const { return m_growMode; }
 726
 727     // Read-only access to the row heights and col widths arrays
 728     const wxArrayInt& GetRowHeights() const { return m_rowHeights; }
 729     const wxArrayInt& GetColWidths() const  { return m_colWidths; }
 730
 731     // implementation
 732     virtual void RecalcSizes();
 733     virtual wxSize CalcMin();
 734
 735 protected:
 736     void AdjustForFlexDirection();
 737     void AdjustForGrowables(const wxSize& sz);
 738
 739     // the heights/widths of all rows/columns
 740     wxArrayInt  m_rowHeights,
 741                 m_colWidths;
 742
 743     // indices of the growable columns and rows
 744     wxArrayInt  m_growableRows,
 745                 m_growableCols;
 746
 747     // proportion values of the corresponding growable rows and columns
 748     wxArrayInt  m_growableRowsProportions,
 749                 m_growableColsProportions;
 750
 751     // parameters describing whether the growable cells should be resized in
 752     // both directions or only one
 753     int m_flexDirection;
 754     wxFlexSizerGrowMode m_growMode;
 755
 756     // saves CalcMin result to optimize RecalcSizes
 757     wxSize m_calculatedMinSize;
 758
 759 private:
 760     DECLARE_CLASS(wxFlexGridSizer)
 761     DECLARE_NO_COPY_CLASS(wxFlexGridSizer)
 762 };
 763
 764 //---------------------------------------------------------------------------
 765 // wxBoxSizer
 766 //---------------------------------------------------------------------------
 767
 768 class WXDLLEXPORT wxBoxSizer: public wxSizer
 769 {
 770 public:
 771     wxBoxSizer(int orient)
 772     {
 773         m_orient = orient;
 774
 775         wxASSERT_MSG( m_orient == wxHORIZONTAL || m_orient == wxVERTICAL,
 776                       _T("invalid value for wxBoxSizer orientation") );
 777     }
 778
 779     int GetOrientation() const { return m_orient; }
 780
 781     bool IsVertical() const { return m_orient == wxVERTICAL; }
 782
 783     void SetOrientation(int orient) { m_orient = orient; }
 784
 785     // implementation of our resizing logic
 786     virtual wxSize CalcMin();
 787     virtual void RecalcSizes();
 788
 789 protected:
 790     // helpers for our code: this returns the component of the given wxSize in
 791     // the direction of the sizer and in the other direction, respectively
 792     int SizeInMajorDir(const wxSize& sz) const
 793     {
 794         return m_orient == wxHORIZONTAL ? sz.x : sz.y;
 795     }
 796
 797     int& SizeInMajorDir(wxSize& sz)
 798     {
 799         return m_orient == wxHORIZONTAL ? sz.x : sz.y;
 800     }
 801
 802     int& PosInMajorDir(wxPoint& pt)
 803     {
 804         return m_orient == wxHORIZONTAL ? pt.x : pt.y;
 805     }
 806
 807     int SizeInMinorDir(const wxSize& sz) const
 808     {
 809         return m_orient == wxHORIZONTAL ? sz.y : sz.x;
 810     }
 811
 812     int& SizeInMinorDir(wxSize& sz)
 813     {
 814         return m_orient == wxHORIZONTAL ? sz.y : sz.x;
 815     }
 816
 817     int& PosInMinorDir(wxPoint& pt)
 818     {
 819         return m_orient == wxHORIZONTAL ? pt.y : pt.x;
 820     }
 821
 822     // another helper: creates wxSize from major and minor components
 823     wxSize SizeFromMajorMinor(int major, int minor) const
 824     {
 825         if ( m_orient == wxHORIZONTAL )
 826         {
 827             return wxSize(major, minor);
 828         }
 829         else // wxVERTICAL
 830         {
 831             return wxSize(minor, major);
 832         }
 833     }
 834
 835
 836     // either wxHORIZONTAL or wxVERTICAL
 837     int m_orient;
 838
 839     // the sum of proportion of all of our elements
 840     int m_totalProportion;
 841
 842     // the minimal size needed for this sizer as calculated by the last call to
 843     // our CalcMin()
 844     wxSize m_minSize;
 845
 846 private:
 847     DECLARE_CLASS(wxBoxSizer)
 848 };
 849
 850 //---------------------------------------------------------------------------
 851 // wxStaticBoxSizer
 852 //---------------------------------------------------------------------------
 853
 854 #if wxUSE_STATBOX
 855
 856 class WXDLLEXPORT wxStaticBox;
 857
 858 class WXDLLEXPORT wxStaticBoxSizer: public wxBoxSizer
 859 {
 860 public:
 861     wxStaticBoxSizer(wxStaticBox *box, int orient);
 862     wxStaticBoxSizer(int orient, wxWindow *win, const wxString& label = wxEmptyString);
 863     virtual ~wxStaticBoxSizer();
 864
 865     void RecalcSizes();
 866     wxSize CalcMin();
 867
 868     wxStaticBox *GetStaticBox() const
 869         { return m_staticBox; }
 870
 871     // override to hide/show the static box as well
 872     virtual void ShowItems (bool show);
 873
 874     virtual bool Detach( wxWindow *window );
 875     virtual bool Detach( wxSizer *sizer ) { return wxBoxSizer::Detach(sizer); }
 876     virtual bool Detach( int index ) { return wxBoxSizer::Detach(index); }
 877
 878 protected:
 879     wxStaticBox   *m_staticBox;
 880
 881 private:
 882     DECLARE_CLASS(wxStaticBoxSizer)
 883     DECLARE_NO_COPY_CLASS(wxStaticBoxSizer)
 884 };
 885
 886 #endif // wxUSE_STATBOX
 887
 888 #if wxUSE_BUTTON
 889
 890 class WXDLLEXPORT wxStdDialogButtonSizer: public wxBoxSizer
 891 {
 892 public:
 893     // Constructor just creates a new wxBoxSizer, not much else.
 894     // Box sizer orientation is automatically determined here:
 895     // vertical for PDAs, horizontal for everything else?
 896     wxStdDialogButtonSizer();
 897
 898     // Checks button ID against system IDs and sets one of the pointers below
 899     // to this button. Does not do any sizer-related things here.
 900     void AddButton(wxButton *button);
 901
 902     // Use these if no standard ID can/should be used
 903     void SetAffirmativeButton( wxButton *button );
 904     void SetNegativeButton( wxButton *button );
 905     void SetCancelButton( wxButton *button );
 906
 907     // All platform-specific code here, checks which buttons exist and add
 908     // them to the sizer accordingly.
 909     // Note - one potential hack on Mac we could use here,
 910     // if m_buttonAffirmative is wxID_SAVE then ensure wxID_SAVE
 911     // is set to _("Save") and m_buttonNegative is set to _("Don't Save")
 912     // I wouldn't add any other hacks like that into here,
 913     // but this one I can see being useful.
 914     void Realize();
 915
 916     wxButton *GetAffirmativeButton() const { return m_buttonAffirmative; }
 917     wxButton *GetApplyButton() const { return m_buttonApply; }
 918     wxButton *GetNegativeButton() const { return m_buttonNegative; }
 919     wxButton *GetCancelButton() const { return m_buttonCancel; }
 920     wxButton *GetHelpButton() const { return m_buttonHelp; }
 921
 922 protected:
 923     wxButton *m_buttonAffirmative;  // wxID_OK, wxID_YES, wxID_SAVE go here
 924     wxButton *m_buttonApply;        // wxID_APPLY
 925     wxButton *m_buttonNegative;     // wxID_NO
 926     wxButton *m_buttonCancel;       // wxID_CANCEL, wxID_CLOSE
 927     wxButton *m_buttonHelp;         // wxID_HELP, wxID_CONTEXT_HELP
 928
 929 private:
 930     DECLARE_CLASS(wxStdDialogButtonSizer)
 931     DECLARE_NO_COPY_CLASS(wxStdDialogButtonSizer)
 932 };
 933
 934 #endif // wxUSE_BUTTON
 935
 936
 937 // ----------------------------------------------------------------------------
 938 // inline functions implementation
 939 // ----------------------------------------------------------------------------
 940
 941 #if WXWIN_COMPATIBILITY_2_8
 942
 943 inline void wxSizerItem::SetWindow(wxWindow *window)
 944 {
 945     DoSetWindow(window);
 946 }
 947
 948 inline void wxSizerItem::SetSizer(wxSizer *sizer)
 949 {
 950     DoSetSizer(sizer);
 951 }
 952
 953 inline void wxSizerItem::SetSpacer(const wxSize& size)
 954 {
 955     DoSetSpacer(size);
 956 }
 957
 958 inline void wxSizerItem::SetSpacer(int width, int height)
 959 {
 960     DoSetSpacer(wxSize(width, height));
 961 }
 962
 963 #endif // WXWIN_COMPATIBILITY_2_8
 964
 965
 966 inline wxSizerItem*
 967 wxSizer::Add( wxSizerItem *item )
 968 {
 969     return Insert( m_children.GetCount(), item );
 970 }
 971
 972 inline wxSizerItem*
 973 wxSizer::Add( wxWindow *window, int proportion, int flag, int border, wxObject* userData )
 974 {
 975     return Add( new wxSizerItem( window, proportion, flag, border, userData ) );
 976 }
 977
 978 inline wxSizerItem*
 979 wxSizer::Add( wxSizer *sizer, int proportion, int flag, int border, wxObject* userData )
 980 {
 981     return Add( new wxSizerItem( sizer, proportion, flag, border, userData ) );
 982 }
 983
 984 inline wxSizerItem*
 985 wxSizer::Add( int width, int height, int proportion, int flag, int border, wxObject* userData )
 986 {
 987     return Add( new wxSizerItem( width, height, proportion, flag, border, userData ) );
 988 }
 989
 990 inline wxSizerItem*
 991 wxSizer::Add( wxWindow *window, const wxSizerFlags& flags )
 992 {
 993     return Add( new wxSizerItem(window, flags) );
 994 }
 995
 996 inline wxSizerItem*
 997 wxSizer::Add( wxSizer *sizer, const wxSizerFlags& flags )
 998 {
 999     return Add( new wxSizerItem(sizer, flags) );
1000 }
1001
1002 inline wxSizerItem*
1003 wxSizer::AddSpacer(int size)
1004 {
1005     return Add(size, size);
1006 }
1007
1008 inline wxSizerItem*
1009 wxSizer::AddStretchSpacer(int prop)
1010 {
1011     return Add(0, 0, prop);
1012 }
1013
1014 inline wxSizerItem*
1015 wxSizer::Prepend( wxSizerItem *item )
1016 {
1017     return Insert( 0, item );
1018 }
1019
1020 inline wxSizerItem*
1021 wxSizer::Prepend( wxWindow *window, int proportion, int flag, int border, wxObject* userData )
1022 {
1023     return Prepend( new wxSizerItem( window, proportion, flag, border, userData ) );
1024 }
1025
1026 inline wxSizerItem*
1027 wxSizer::Prepend( wxSizer *sizer, int proportion, int flag, int border, wxObject* userData )
1028 {
1029     return Prepend( new wxSizerItem( sizer, proportion, flag, border, userData ) );
1030 }
1031
1032 inline wxSizerItem*
1033 wxSizer::Prepend( int width, int height, int proportion, int flag, int border, wxObject* userData )
1034 {
1035     return Prepend( new wxSizerItem( width, height, proportion, flag, border, userData ) );
1036 }
1037
1038 inline wxSizerItem*
1039 wxSizer::PrependSpacer(int size)
1040 {
1041     return Prepend(size, size);
1042 }
1043
1044 inline wxSizerItem*
1045 wxSizer::PrependStretchSpacer(int prop)
1046 {
1047     return Prepend(0, 0, prop);
1048 }
1049
1050 inline wxSizerItem*
1051 wxSizer::Prepend( wxWindow *window, const wxSizerFlags& flags )
1052 {
1053     return Prepend( new wxSizerItem(window, flags) );
1054 }
1055
1056 inline wxSizerItem*
1057 wxSizer::Prepend( wxSizer *sizer, const wxSizerFlags& flags )
1058 {
1059     return Prepend( new wxSizerItem(sizer, flags) );
1060 }
1061
1062 inline wxSizerItem*
1063 wxSizer::Insert( size_t index,
1064                  wxWindow *window,
1065                  int proportion,
1066                  int flag,
1067                  int border,
1068                  wxObject* userData )
1069 {
1070     return Insert( index, new wxSizerItem( window, proportion, flag, border, userData ) );
1071 }
1072
1073 inline wxSizerItem*
1074 wxSizer::Insert( size_t index,
1075                  wxSizer *sizer,
1076                  int proportion,
1077                  int flag,
1078                  int border,
1079                  wxObject* userData )
1080 {
1081     return Insert( index, new wxSizerItem( sizer, proportion, flag, border, userData ) );
1082 }
1083
1084 inline wxSizerItem*
1085 wxSizer::Insert( size_t index,
1086                  int width,
1087                  int height,
1088                  int proportion,
1089                  int flag,
1090                  int border,
1091                  wxObject* userData )
1092 {
1093     return Insert( index, new wxSizerItem( width, height, proportion, flag, border, userData ) );
1094 }
1095
1096 inline wxSizerItem*
1097 wxSizer::Insert( size_t index, wxWindow *window, const wxSizerFlags& flags )
1098 {
1099     return Insert( index, new wxSizerItem(window, flags) );
1100 }
1101
1102 inline wxSizerItem*
1103 wxSizer::Insert( size_t index, wxSizer *sizer, const wxSizerFlags& flags )
1104 {
1105     return Insert( index, new wxSizerItem(sizer, flags) );
1106 }
1107
1108 inline wxSizerItem*
1109 wxSizer::InsertSpacer(size_t index, int size)
1110 {
1111     return Insert(index, size, size);
1112 }
1113
1114 inline wxSizerItem*
1115 wxSizer::InsertStretchSpacer(size_t index, int prop)
1116 {
1117     return Insert(index, 0, 0, prop);
1118 }
1119
1120 #endif // __WXSIZER_H__