src/xrc/xh_sizer.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/xrc/xh_sizer.cpp
   3 // Purpose:     XRC resource for wxBoxSizer
   4 // Author:      Vaclav Slavik
   5 // Created:     2000/03/21
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2000 Vaclav Slavik
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_XRC
  19
  20 #include "wx/xrc/xh_sizer.h"
  21
  22 #ifndef WX_PRECOMP
  23     #include "wx/log.h"
  24     #include "wx/panel.h"
  25     #include "wx/statbox.h"
  26     #include "wx/sizer.h"
  27     #include "wx/frame.h"
  28     #include "wx/dialog.h"
  29     #include "wx/button.h"
  30 #endif
  31
  32 #include "wx/gbsizer.h"
  33 #include "wx/notebook.h"
  34 #include "wx/tokenzr.h"
  35
  36
  37 //-----------------------------------------------------------------------------
  38 // wxSizerXmlHandler
  39 //-----------------------------------------------------------------------------
  40
  41 IMPLEMENT_DYNAMIC_CLASS(wxSizerXmlHandler, wxXmlResourceHandler)
  42
  43 wxSizerXmlHandler::wxSizerXmlHandler()
  44                   :wxXmlResourceHandler(),
  45                    m_isInside(false),
  46                    m_isGBS(false),
  47                    m_parentSizer(NULL)
  48 {
  49     XRC_ADD_STYLE(wxHORIZONTAL);
  50     XRC_ADD_STYLE(wxVERTICAL);
  51
  52     // and flags
  53     XRC_ADD_STYLE(wxLEFT);
  54     XRC_ADD_STYLE(wxRIGHT);
  55     XRC_ADD_STYLE(wxTOP);
  56     XRC_ADD_STYLE(wxBOTTOM);
  57     XRC_ADD_STYLE(wxNORTH);
  58     XRC_ADD_STYLE(wxSOUTH);
  59     XRC_ADD_STYLE(wxEAST);
  60     XRC_ADD_STYLE(wxWEST);
  61     XRC_ADD_STYLE(wxALL);
  62
  63     XRC_ADD_STYLE(wxGROW);
  64     XRC_ADD_STYLE(wxEXPAND);
  65     XRC_ADD_STYLE(wxSHAPED);
  66     XRC_ADD_STYLE(wxSTRETCH_NOT);
  67
  68     XRC_ADD_STYLE(wxALIGN_CENTER);
  69     XRC_ADD_STYLE(wxALIGN_CENTRE);
  70     XRC_ADD_STYLE(wxALIGN_LEFT);
  71     XRC_ADD_STYLE(wxALIGN_TOP);
  72     XRC_ADD_STYLE(wxALIGN_RIGHT);
  73     XRC_ADD_STYLE(wxALIGN_BOTTOM);
  74     XRC_ADD_STYLE(wxALIGN_CENTER_HORIZONTAL);
  75     XRC_ADD_STYLE(wxALIGN_CENTRE_HORIZONTAL);
  76     XRC_ADD_STYLE(wxALIGN_CENTER_VERTICAL);
  77     XRC_ADD_STYLE(wxALIGN_CENTRE_VERTICAL);
  78
  79     XRC_ADD_STYLE(wxFIXED_MINSIZE);
  80 }
  81
  82
  83
  84 bool wxSizerXmlHandler::CanHandle(wxXmlNode *node)
  85 {
  86     return ( (!m_isInside && IsSizerNode(node)) ||
  87              (m_isInside && IsOfClass(node, wxT("sizeritem"))) ||
  88              (m_isInside && IsOfClass(node, wxT("spacer")))
  89         );
  90 }
  91
  92
  93 wxObject* wxSizerXmlHandler::DoCreateResource()
  94 {
  95     if (m_class == wxT("sizeritem"))
  96         return Handle_sizeritem();
  97
  98     else if (m_class == wxT("spacer"))
  99         return Handle_spacer();
 100
 101     else
 102         return Handle_sizer();
 103 }
 104
 105
 106
 107
 108 bool wxSizerXmlHandler::IsSizerNode(wxXmlNode *node)
 109 {
 110     return (IsOfClass(node, wxT("wxBoxSizer"))) ||
 111            (IsOfClass(node, wxT("wxStaticBoxSizer"))) ||
 112            (IsOfClass(node, wxT("wxGridSizer"))) ||
 113            (IsOfClass(node, wxT("wxFlexGridSizer"))) ||
 114            (IsOfClass(node, wxT("wxGridBagSizer")));
 115 }
 116
 117
 118 wxObject* wxSizerXmlHandler::Handle_sizeritem()
 119 {
 120     // find the item to be managed by this sizeritem
 121     wxXmlNode *n = GetParamNode(wxT("object"));
 122     if ( !n )
 123         n = GetParamNode(wxT("object_ref"));
 124
 125     // did we find one?
 126     if (n)
 127     {
 128         // create a sizer item for it
 129         wxSizerItem* sitem = MakeSizerItem();
 130
 131         // now fetch the item to be managed
 132         bool old_gbs = m_isGBS;
 133         bool old_ins = m_isInside;
 134         wxSizer *old_par = m_parentSizer;
 135         m_isInside = false;
 136         if (!IsSizerNode(n)) m_parentSizer = NULL;
 137         wxObject *item = CreateResFromNode(n, m_parent, NULL);
 138         m_isInside = old_ins;
 139         m_parentSizer = old_par;
 140         m_isGBS = old_gbs;
 141
 142         // and figure out what type it is
 143         wxSizer *sizer = wxDynamicCast(item, wxSizer);
 144         wxWindow *wnd = wxDynamicCast(item, wxWindow);
 145
 146         if (sizer)
 147             sitem->AssignSizer(sizer);
 148         else if (wnd)
 149             sitem->AssignWindow(wnd);
 150         else
 151             wxLogError(wxT("Error in resource."));
 152
 153         // finally, set other wxSizerItem attributes
 154         SetSizerItemAttributes(sitem);
 155
 156         AddSizerItem(sitem);
 157         return item;
 158     }
 159     else /*n == NULL*/
 160     {
 161         wxLogError(wxT("Error in resource: no window/sizer/spacer within sizeritem object."));
 162         return NULL;
 163     }
 164 }
 165
 166
 167 wxObject* wxSizerXmlHandler::Handle_spacer()
 168 {
 169     wxCHECK_MSG(m_parentSizer, NULL, wxT("Incorrect syntax of XRC resource: spacer not within sizer!"));
 170
 171     wxSizerItem* sitem = MakeSizerItem();
 172     SetSizerItemAttributes(sitem);
 173     sitem->AssignSpacer(GetSize());
 174     AddSizerItem(sitem);
 175     return NULL;
 176 }
 177
 178
 179 wxObject* wxSizerXmlHandler::Handle_sizer()
 180 {
 181     wxSizer *sizer = NULL;
 182
 183     wxXmlNode *parentNode = m_node->GetParent();
 184
 185     wxCHECK_MSG(m_parentSizer != NULL ||
 186                 (parentNode && parentNode->GetType() == wxXML_ELEMENT_NODE &&
 187                  m_parentAsWindow), NULL,
 188                 wxT("Sizer must have a window parent node"));
 189
 190     if (m_class == wxT("wxBoxSizer"))
 191         sizer = Handle_wxBoxSizer();
 192
 193 #if wxUSE_STATBOX
 194     else if (m_class == wxT("wxStaticBoxSizer"))
 195         sizer = Handle_wxStaticBoxSizer();
 196 #endif
 197
 198     else if (m_class == wxT("wxGridSizer"))
 199         sizer = Handle_wxGridSizer();
 200
 201     else if (m_class == wxT("wxFlexGridSizer"))
 202         sizer = Handle_wxFlexGridSizer();
 203
 204     else if (m_class == wxT("wxGridBagSizer"))
 205         sizer = Handle_wxGridBagSizer();
 206
 207     if ( !sizer )
 208     {
 209         wxLogError(_T("Failed to create size of class \"%s\""), m_class.c_str());
 210         return NULL;
 211     }
 212
 213     wxSize minsize = GetSize(wxT("minsize"));
 214     if (!(minsize == wxDefaultSize))
 215         sizer->SetMinSize(minsize);
 216
 217     // save state
 218     wxSizer *old_par = m_parentSizer;
 219     bool old_ins = m_isInside;
 220
 221     // set new state
 222     m_parentSizer = sizer;
 223     m_isInside = true;
 224     m_isGBS = (m_class == wxT("wxGridBagSizer"));
 225
 226     CreateChildren(m_parent, true/*only this handler*/);
 227
 228     // restore state
 229     m_isInside = old_ins;
 230     m_parentSizer = old_par;
 231
 232     if (m_parentSizer == NULL) // setup window:
 233     {
 234         m_parentAsWindow->SetSizer(sizer);
 235
 236         wxXmlNode *nd = m_node;
 237         m_node = parentNode;
 238         if (GetSize() == wxDefaultSize)
 239             sizer->Fit(m_parentAsWindow);
 240         m_node = nd;
 241
 242         if (m_parentAsWindow->GetWindowStyle() & (wxMAXIMIZE_BOX | wxRESIZE_BORDER))
 243             sizer->SetSizeHints(m_parentAsWindow);
 244     }
 245
 246     return sizer;
 247 }
 248
 249
 250 wxSizer*  wxSizerXmlHandler::Handle_wxBoxSizer()
 251 {
 252     return new wxBoxSizer(GetStyle(wxT("orient"), wxHORIZONTAL));
 253 }
 254
 255 #if wxUSE_STATBOX
 256 wxSizer*  wxSizerXmlHandler::Handle_wxStaticBoxSizer()
 257 {
 258     return new wxStaticBoxSizer(
 259             new wxStaticBox(m_parentAsWindow,
 260                             GetID(),
 261                             GetText(wxT("label")),
 262                             wxDefaultPosition, wxDefaultSize,
 263                             0/*style*/,
 264                             GetName()),
 265             GetStyle(wxT("orient"), wxHORIZONTAL));
 266 }
 267 #endif // wxUSE_STATBOX
 268
 269 wxSizer*  wxSizerXmlHandler::Handle_wxGridSizer()
 270 {
 271     return new wxGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 272                            GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 273 }
 274
 275
 276 wxSizer*  wxSizerXmlHandler::Handle_wxFlexGridSizer()
 277 {
 278     wxFlexGridSizer *sizer =
 279         new wxFlexGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 280                             GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 281     SetGrowables(sizer, wxT("growablerows"), true);
 282     SetGrowables(sizer, wxT("growablecols"), false);
 283     return sizer;
 284 }
 285
 286
 287 wxSizer*  wxSizerXmlHandler::Handle_wxGridBagSizer()
 288 {
 289     wxGridBagSizer *sizer =
 290         new wxGridBagSizer(GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 291     SetGrowables(sizer, wxT("growablerows"), true);
 292     SetGrowables(sizer, wxT("growablecols"), false);
 293     return sizer;
 294 }
 295
 296
 297
 298
 299 void wxSizerXmlHandler::SetGrowables(wxFlexGridSizer* sizer,
 300                                      const wxChar* param,
 301                                      bool rows)
 302 {
 303     wxStringTokenizer tkn;
 304     unsigned long l;
 305     tkn.SetString(GetParamValue(param), wxT(","));
 306     while (tkn.HasMoreTokens())
 307     {
 308         if (!tkn.GetNextToken().ToULong(&l))
 309             wxLogError(wxT("growable[rows|cols] must be comma-separated list of row numbers"));
 310         else {
 311             if (rows)
 312                 sizer->AddGrowableRow(l);
 313             else
 314                 sizer->AddGrowableCol(l);
 315         }
 316     }
 317 }
 318
 319
 320 wxGBPosition wxSizerXmlHandler::GetGBPos(const wxString& param)
 321 {
 322     wxSize sz = GetSize(param);
 323     if (sz.x < 0) sz.x = 0;
 324     if (sz.y < 0) sz.y = 0;
 325     return wxGBPosition(sz.x, sz.y);
 326 }
 327
 328 wxGBSpan wxSizerXmlHandler::GetGBSpan(const wxString& param)
 329 {
 330     wxSize sz = GetSize(param);
 331     if (sz.x < 1) sz.x = 1;
 332     if (sz.y < 1) sz.y = 1;
 333     return wxGBSpan(sz.x, sz.y);
 334 }
 335
 336
 337
 338 wxSizerItem* wxSizerXmlHandler::MakeSizerItem()
 339 {
 340     if (m_isGBS)
 341         return new wxGBSizerItem();
 342     else
 343         return new wxSizerItem();
 344 }
 345
 346 void wxSizerXmlHandler::SetSizerItemAttributes(wxSizerItem* sitem)
 347 {
 348     sitem->SetProportion(GetLong(wxT("option")));  // Should this check for "proportion" too?
 349     sitem->SetFlag(GetStyle(wxT("flag")));
 350     sitem->SetBorder(GetDimension(wxT("border")));
 351     wxSize sz = GetSize(wxT("minsize"));
 352     if (!(sz == wxDefaultSize))
 353         sitem->SetMinSize(sz);
 354     sz = GetSize(wxT("ratio"));
 355     if (!(sz == wxDefaultSize))
 356         sitem->SetRatio(sz);
 357
 358     if (m_isGBS)
 359     {
 360         wxGBSizerItem* gbsitem = (wxGBSizerItem*)sitem;
 361         gbsitem->SetPos(GetGBPos(wxT("cellpos")));
 362         gbsitem->SetSpan(GetGBSpan(wxT("cellspan")));
 363     }
 364
 365     // record the id of the item, if any, for use by XRCSIZERITEM()
 366     sitem->SetId(GetID());
 367 }
 368
 369 void wxSizerXmlHandler::AddSizerItem(wxSizerItem* sitem)
 370 {
 371     if (m_isGBS)
 372         ((wxGridBagSizer*)m_parentSizer)->Add((wxGBSizerItem*)sitem);
 373     else
 374         m_parentSizer->Add(sitem);
 375 }
 376
 377
 378
 379 //-----------------------------------------------------------------------------
 380 // wxStdDialogButtonSizerXmlHandler
 381 //-----------------------------------------------------------------------------
 382 #if wxUSE_BUTTON
 383
 384 IMPLEMENT_DYNAMIC_CLASS(wxStdDialogButtonSizerXmlHandler, wxXmlResourceHandler)
 385
 386 wxStdDialogButtonSizerXmlHandler::wxStdDialogButtonSizerXmlHandler()
 387     : m_isInside(false), m_parentSizer(NULL)
 388 {
 389 }
 390
 391 wxObject *wxStdDialogButtonSizerXmlHandler::DoCreateResource()
 392 {
 393     if (m_class == wxT("wxStdDialogButtonSizer"))
 394     {
 395         wxASSERT( !m_parentSizer );
 396
 397         wxSizer *s = m_parentSizer = new wxStdDialogButtonSizer;
 398         m_isInside = true;
 399
 400         CreateChildren(m_parent, true/*only this handler*/);
 401
 402         m_parentSizer->Realize();
 403
 404         m_isInside = false;
 405         m_parentSizer = NULL;
 406
 407         return s;
 408     }
 409     else // m_class == "button"
 410     {
 411         wxASSERT( m_parentSizer );
 412
 413         // find the item to be managed by this sizeritem
 414         wxXmlNode *n = GetParamNode(wxT("object"));
 415         if ( !n )
 416             n = GetParamNode(wxT("object_ref"));
 417
 418         // did we find one?
 419         if (n)
 420         {
 421             wxObject *item = CreateResFromNode(n, m_parent, NULL);
 422             wxButton *button = wxDynamicCast(item, wxButton);
 423
 424             if (button)
 425                 m_parentSizer->AddButton(button);
 426             else
 427                 wxLogError(wxT("Error in resource - expected button."));
 428
 429             return item;
 430         }
 431         else /*n == NULL*/
 432         {
 433             wxLogError(wxT("Error in resource: no button within wxStdDialogButtonSizer."));
 434             return NULL;
 435         }
 436     }
 437 }
 438
 439 bool wxStdDialogButtonSizerXmlHandler::CanHandle(wxXmlNode *node)
 440 {
 441     return (!m_isInside && IsOfClass(node, wxT("wxStdDialogButtonSizer"))) ||
 442            (m_isInside && IsOfClass(node, wxT("button")));
 443 }
 444 #endif // wxUSE_BUTTON
 445
 446 #endif // wxUSE_XRC