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(wxADJUST_MINSIZE);
  80     XRC_ADD_STYLE(wxFIXED_MINSIZE);
  81 }
  82
  83
  84
  85 bool wxSizerXmlHandler::CanHandle(wxXmlNode *node)
  86 {
  87     return ( (!m_isInside && IsSizerNode(node)) ||
  88              (m_isInside && IsOfClass(node, wxT("sizeritem"))) ||
  89              (m_isInside && IsOfClass(node, wxT("spacer")))
  90         );
  91 }
  92
  93
  94 wxObject* wxSizerXmlHandler::DoCreateResource()
  95 {
  96     if (m_class == wxT("sizeritem"))
  97         return Handle_sizeritem();
  98
  99     else if (m_class == wxT("spacer"))
 100         return Handle_spacer();
 101
 102     else
 103         return Handle_sizer();
 104 }
 105
 106
 107
 108
 109 bool wxSizerXmlHandler::IsSizerNode(wxXmlNode *node)
 110 {
 111     return (IsOfClass(node, wxT("wxBoxSizer"))) ||
 112            (IsOfClass(node, wxT("wxStaticBoxSizer"))) ||
 113            (IsOfClass(node, wxT("wxGridSizer"))) ||
 114            (IsOfClass(node, wxT("wxFlexGridSizer"))) ||
 115            (IsOfClass(node, wxT("wxGridBagSizer")));
 116 }
 117
 118
 119 wxObject* wxSizerXmlHandler::Handle_sizeritem()
 120 {
 121     // find the item to be managed by this sizeritem
 122     wxXmlNode *n = GetParamNode(wxT("object"));
 123     if ( !n )
 124         n = GetParamNode(wxT("object_ref"));
 125
 126     // did we find one?
 127     if (n)
 128     {
 129         // create a sizer item for it
 130         wxSizerItem* sitem = MakeSizerItem();
 131
 132         // now fetch the item to be managed
 133         bool old_gbs = m_isGBS;
 134         bool old_ins = m_isInside;
 135         wxSizer *old_par = m_parentSizer;
 136         m_isInside = false;
 137         if (!IsSizerNode(n)) m_parentSizer = NULL;
 138         wxObject *item = CreateResFromNode(n, m_parent, NULL);
 139         m_isInside = old_ins;
 140         m_parentSizer = old_par;
 141         m_isGBS = old_gbs;
 142
 143         // and figure out what type it is
 144         wxSizer *sizer = wxDynamicCast(item, wxSizer);
 145         wxWindow *wnd = wxDynamicCast(item, wxWindow);
 146
 147         if (sizer)
 148             sitem->SetSizer(sizer);
 149         else if (wnd)
 150             sitem->SetWindow(wnd);
 151         else
 152             wxLogError(wxT("Error in resource."));
 153
 154         // finally, set other wxSizerItem attributes
 155         SetSizerItemAttributes(sitem);
 156
 157         AddSizerItem(sitem);
 158         return item;
 159     }
 160     else /*n == NULL*/
 161     {
 162         wxLogError(wxT("Error in resource: no window/sizer/spacer within sizeritem object."));
 163         return NULL;
 164     }
 165 }
 166
 167
 168 wxObject* wxSizerXmlHandler::Handle_spacer()
 169 {
 170     wxCHECK_MSG(m_parentSizer, NULL, wxT("Incorrect syntax of XRC resource: spacer not within sizer!"));
 171
 172     wxSizerItem* sitem = MakeSizerItem();
 173     SetSizerItemAttributes(sitem);
 174     sitem->SetSpacer(GetSize());
 175     AddSizerItem(sitem);
 176     return NULL;
 177 }
 178
 179
 180 wxObject* wxSizerXmlHandler::Handle_sizer()
 181 {
 182     wxSizer *sizer = NULL;
 183
 184     wxXmlNode *parentNode = m_node->GetParent();
 185
 186     wxCHECK_MSG(m_parentSizer != NULL ||
 187                 (parentNode && parentNode->GetType() == wxXML_ELEMENT_NODE &&
 188                  m_parentAsWindow != NULL &&
 189                  (m_parentAsWindow->IsKindOf(CLASSINFO(wxWindow)))
 190                     ), NULL,
 191                 wxT("Incorrect use of sizer: parent is not a 'wxWindow'."));
 192
 193     if (m_class == wxT("wxBoxSizer"))
 194         sizer = Handle_wxBoxSizer();
 195
 196     else if (m_class == wxT("wxStaticBoxSizer"))
 197         sizer = Handle_wxStaticBoxSizer();
 198
 199     else if (m_class == wxT("wxGridSizer"))
 200         sizer = Handle_wxGridSizer();
 201
 202     else if (m_class == wxT("wxFlexGridSizer"))
 203         sizer = Handle_wxFlexGridSizer();
 204
 205     else if (m_class == wxT("wxGridBagSizer"))
 206         sizer = Handle_wxGridBagSizer();
 207
 208     if ( !sizer )
 209     {
 210         wxLogError(_T("Failed to create size of class \"%s\""), m_class.c_str());
 211         return NULL;
 212     }
 213
 214     wxSize minsize = GetSize(wxT("minsize"));
 215     if (!(minsize == wxDefaultSize))
 216         sizer->SetMinSize(minsize);
 217
 218     // save state
 219     wxSizer *old_par = m_parentSizer;
 220     bool old_ins = m_isInside;
 221
 222     // set new state
 223     m_parentSizer = sizer;
 224     m_isInside = true;
 225     m_isGBS = (m_class == wxT("wxGridBagSizer"));
 226
 227     CreateChildren(m_parent, true/*only this handler*/);
 228
 229     // restore state
 230     m_isInside = old_ins;
 231     m_parentSizer = old_par;
 232
 233     if (m_parentSizer == NULL) // setup window:
 234     {
 235         m_parentAsWindow->SetSizer(sizer);
 236
 237         wxXmlNode *nd = m_node;
 238         m_node = parentNode;
 239         if (GetSize() == wxDefaultSize)
 240             sizer->Fit(m_parentAsWindow);
 241         m_node = nd;
 242
 243         if (m_parentAsWindow->GetWindowStyle() & (wxMAXIMIZE_BOX | wxRESIZE_BORDER))
 244             sizer->SetSizeHints(m_parentAsWindow);
 245     }
 246
 247     return sizer;
 248 }
 249
 250
 251 wxSizer*  wxSizerXmlHandler::Handle_wxBoxSizer()
 252 {
 253     return new wxBoxSizer(GetStyle(wxT("orient"), wxHORIZONTAL));
 254 }
 255
 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
 268 wxSizer*  wxSizerXmlHandler::Handle_wxGridSizer()
 269 {
 270     return new wxGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 271                            GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 272 }
 273
 274
 275 wxSizer*  wxSizerXmlHandler::Handle_wxFlexGridSizer()
 276 {
 277     wxFlexGridSizer *sizer =
 278         new wxFlexGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 279                             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 wxSizer*  wxSizerXmlHandler::Handle_wxGridBagSizer()
 287 {
 288     wxGridBagSizer *sizer =
 289         new wxGridBagSizer(GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 290     SetGrowables(sizer, wxT("growablerows"), true);
 291     SetGrowables(sizer, wxT("growablecols"), false);
 292     return sizer;
 293 }
 294
 295
 296
 297
 298 void wxSizerXmlHandler::SetGrowables(wxFlexGridSizer* sizer,
 299                                      const wxChar* param,
 300                                      bool rows)
 301 {
 302     wxStringTokenizer tkn;
 303     unsigned long l;
 304     tkn.SetString(GetParamValue(param), wxT(","));
 305     while (tkn.HasMoreTokens())
 306     {
 307         if (!tkn.GetNextToken().ToULong(&l))
 308             wxLogError(wxT("growable[rows|cols] must be comma-separated list of row numbers"));
 309         else {
 310             if (rows)
 311                 sizer->AddGrowableRow(l);
 312             else
 313                 sizer->AddGrowableCol(l);
 314         }
 315     }
 316 }
 317
 318
 319 wxGBPosition wxSizerXmlHandler::GetGBPos(const wxString& param)
 320 {
 321     wxSize sz = GetSize(param);
 322     if (sz.x < 0) sz.x = 0;
 323     if (sz.y < 0) sz.y = 0;
 324     return wxGBPosition(sz.x, sz.y);
 325 }
 326
 327 wxGBSpan wxSizerXmlHandler::GetGBSpan(const wxString& param)
 328 {
 329     wxSize sz = GetSize(param);
 330     if (sz.x < 1) sz.x = 1;
 331     if (sz.y < 1) sz.y = 1;
 332     return wxGBSpan(sz.x, sz.y);
 333 }
 334
 335
 336
 337 wxSizerItem* wxSizerXmlHandler::MakeSizerItem()
 338 {
 339     if (m_isGBS)
 340         return new wxGBSizerItem();
 341     else
 342         return new wxSizerItem();
 343 }
 344
 345 void wxSizerXmlHandler::SetSizerItemAttributes(wxSizerItem* sitem)
 346 {
 347     sitem->SetProportion(GetLong(wxT("option")));  // Should this check for "proportion" too?
 348     sitem->SetFlag(GetStyle(wxT("flag")));
 349     sitem->SetBorder(GetDimension(wxT("border")));
 350     wxSize sz = GetSize(wxT("minsize"));
 351     if (!(sz == wxDefaultSize))
 352         sitem->SetMinSize(sz);
 353     sz = GetSize(wxT("ratio"));
 354     if (!(sz == wxDefaultSize))
 355         sitem->SetRatio(sz);
 356
 357     if (m_isGBS)
 358     {
 359         wxGBSizerItem* gbsitem = (wxGBSizerItem*)sitem;
 360         gbsitem->SetPos(GetGBPos(wxT("cellpos")));
 361         gbsitem->SetSpan(GetGBSpan(wxT("cellspan")));
 362     }
 363 }
 364
 365 void wxSizerXmlHandler::AddSizerItem(wxSizerItem* sitem)
 366 {
 367     if (m_isGBS)
 368         ((wxGridBagSizer*)m_parentSizer)->Add((wxGBSizerItem*)sitem);
 369     else
 370         m_parentSizer->Add(sitem);
 371 }
 372
 373
 374
 375 //-----------------------------------------------------------------------------
 376 // wxStdDialogButtonSizerXmlHandler
 377 //-----------------------------------------------------------------------------
 378 #if wxUSE_BUTTON
 379
 380 IMPLEMENT_DYNAMIC_CLASS(wxStdDialogButtonSizerXmlHandler, wxXmlResourceHandler)
 381
 382 wxStdDialogButtonSizerXmlHandler::wxStdDialogButtonSizerXmlHandler()
 383     : m_isInside(false), m_parentSizer(NULL)
 384 {
 385 }
 386
 387 wxObject *wxStdDialogButtonSizerXmlHandler::DoCreateResource()
 388 {
 389     if (m_class == wxT("wxStdDialogButtonSizer"))
 390     {
 391         wxASSERT( !m_parentSizer );
 392
 393         wxSizer *s = m_parentSizer = new wxStdDialogButtonSizer;
 394         m_isInside = true;
 395
 396         CreateChildren(m_parent, true/*only this handler*/);
 397
 398         m_parentSizer->Realize();
 399
 400         m_isInside = false;
 401         m_parentSizer = NULL;
 402
 403         return s;
 404     }
 405     else // m_class == "button"
 406     {
 407         wxASSERT( m_parentSizer );
 408
 409         // find the item to be managed by this sizeritem
 410         wxXmlNode *n = GetParamNode(wxT("object"));
 411         if ( !n )
 412             n = GetParamNode(wxT("object_ref"));
 413
 414         // did we find one?
 415         if (n)
 416         {
 417             wxObject *item = CreateResFromNode(n, m_parent, NULL);
 418             wxButton *button = wxDynamicCast(item, wxButton);
 419
 420             if (button)
 421                 m_parentSizer->AddButton(button);
 422             else
 423                 wxLogError(wxT("Error in resource - expected button."));
 424
 425             return item;
 426         }
 427         else /*n == NULL*/
 428         {
 429             wxLogError(wxT("Error in resource: no button within wxStdDialogButtonSizer."));
 430             return NULL;
 431         }
 432     }
 433 }
 434
 435 bool wxStdDialogButtonSizerXmlHandler::CanHandle(wxXmlNode *node)
 436 {
 437     return (!m_isInside && IsOfClass(node, wxT("wxStdDialogButtonSizer"))) ||
 438            (m_isInside && IsOfClass(node, wxT("button")));
 439 }
 440 #endif // wxUSE_BUTTON
 441
 442 #endif // wxUSE_XRC