src/xrc/xh_sizer.cpp

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