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