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(wxPanel)) ||
 190                   m_parentAsWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 191                   m_parentAsWindow->IsKindOf(CLASSINFO(wxDialog)))
 192                     ), NULL,
 193                 wxT("Incorrect use of sizer: parent is not 'wxDialog', 'wxFrame' or 'wxPanel'."));
 194
 195     if (m_class == wxT("wxBoxSizer"))
 196         sizer = Handle_wxBoxSizer();
 197
 198     else if (m_class == wxT("wxStaticBoxSizer"))
 199         sizer = Handle_wxStaticBoxSizer();
 200
 201     else if (m_class == wxT("wxGridSizer"))
 202         sizer = Handle_wxGridSizer();
 203
 204     else if (m_class == wxT("wxFlexGridSizer"))
 205         sizer = Handle_wxFlexGridSizer();
 206
 207     else if (m_class == wxT("wxGridBagSizer"))
 208         sizer = Handle_wxGridBagSizer();
 209
 210     if ( !sizer )
 211     {
 212         wxLogError(_T("Failed to create size of class \"%s\""), m_class.c_str());
 213         return NULL;
 214     }
 215
 216     wxSize minsize = GetSize(wxT("minsize"));
 217     if (!(minsize == wxDefaultSize))
 218         sizer->SetMinSize(minsize);
 219
 220     // save state
 221     wxSizer *old_par = m_parentSizer;
 222     bool old_ins = m_isInside;
 223
 224     // set new state
 225     m_parentSizer = sizer;
 226     m_isInside = true;
 227     m_isGBS = (m_class == wxT("wxGridBagSizer"));
 228
 229     CreateChildren(m_parent, true/*only this handler*/);
 230
 231     // restore state
 232     m_isInside = old_ins;
 233     m_parentSizer = old_par;
 234
 235     if (m_parentSizer == NULL) // setup window:
 236     {
 237         m_parentAsWindow->SetSizer(sizer);
 238
 239         wxXmlNode *nd = m_node;
 240         m_node = parentNode;
 241         if (GetSize() == wxDefaultSize)
 242             sizer->Fit(m_parentAsWindow);
 243         m_node = nd;
 244
 245         if (m_parentAsWindow->GetWindowStyle() & (wxMAXIMIZE_BOX | wxRESIZE_BORDER))
 246             sizer->SetSizeHints(m_parentAsWindow);
 247     }
 248
 249     return sizer;
 250 }
 251
 252
 253 wxSizer*  wxSizerXmlHandler::Handle_wxBoxSizer()
 254 {
 255     return new wxBoxSizer(GetStyle(wxT("orient"), wxHORIZONTAL));
 256 }
 257
 258 wxSizer*  wxSizerXmlHandler::Handle_wxStaticBoxSizer()
 259 {
 260     return new wxStaticBoxSizer(
 261             new wxStaticBox(m_parentAsWindow,
 262                             GetID(),
 263                             GetText(wxT("label")),
 264                             wxDefaultPosition, wxDefaultSize,
 265                             0/*style*/,
 266                             GetName()),
 267             GetStyle(wxT("orient"), wxHORIZONTAL));
 268 }
 269
 270 wxSizer*  wxSizerXmlHandler::Handle_wxGridSizer()
 271 {
 272     return new wxGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 273                            GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 274 }
 275
 276
 277 wxSizer*  wxSizerXmlHandler::Handle_wxFlexGridSizer()
 278 {
 279     wxFlexGridSizer *sizer =
 280         new wxFlexGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 281                             GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 282     SetGrowables(sizer, wxT("growablerows"), true);
 283     SetGrowables(sizer, wxT("growablecols"), false);
 284     return sizer;
 285 }
 286
 287
 288 wxSizer*  wxSizerXmlHandler::Handle_wxGridBagSizer()
 289 {
 290     wxGridBagSizer *sizer =
 291         new wxGridBagSizer(GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 292     SetGrowables(sizer, wxT("growablerows"), true);
 293     SetGrowables(sizer, wxT("growablecols"), false);
 294     return sizer;
 295 }
 296
 297
 298
 299
 300 void wxSizerXmlHandler::SetGrowables(wxFlexGridSizer* sizer,
 301                                      const wxChar* param,
 302                                      bool rows)
 303 {
 304     wxStringTokenizer tkn;
 305     unsigned long l;
 306     tkn.SetString(GetParamValue(param), wxT(","));
 307     while (tkn.HasMoreTokens())
 308     {
 309         if (!tkn.GetNextToken().ToULong(&l))
 310             wxLogError(wxT("growable[rows|cols] must be comma-separated list of row numbers"));
 311         else {
 312             if (rows)
 313                 sizer->AddGrowableRow(l);
 314             else
 315                 sizer->AddGrowableCol(l);
 316         }
 317     }
 318 }
 319
 320
 321 wxGBPosition wxSizerXmlHandler::GetGBPos(const wxString& param)
 322 {
 323     wxSize sz = GetSize(param);
 324     if (sz.x < 0) sz.x = 0;
 325     if (sz.y < 0) sz.y = 0;
 326     return wxGBPosition(sz.x, sz.y);
 327 }
 328
 329 wxGBSpan wxSizerXmlHandler::GetGBSpan(const wxString& param)
 330 {
 331     wxSize sz = GetSize(param);
 332     if (sz.x < 1) sz.x = 1;
 333     if (sz.y < 1) sz.y = 1;
 334     return wxGBSpan(sz.x, sz.y);
 335 }
 336
 337
 338
 339 wxSizerItem* wxSizerXmlHandler::MakeSizerItem()
 340 {
 341     if (m_isGBS)
 342         return new wxGBSizerItem();
 343     else
 344         return new wxSizerItem();
 345 }
 346
 347 void wxSizerXmlHandler::SetSizerItemAttributes(wxSizerItem* sitem)
 348 {
 349     sitem->SetProportion(GetLong(wxT("option")));  // Should this check for "proportion" too?
 350     sitem->SetFlag(GetStyle(wxT("flag")));
 351     sitem->SetBorder(GetDimension(wxT("border")));
 352     wxSize sz = GetSize(wxT("minsize"));
 353     if (!(sz == wxDefaultSize))
 354         sitem->SetMinSize(sz);
 355     sz = GetSize(wxT("ratio"));
 356     if (!(sz == wxDefaultSize))
 357         sitem->SetRatio(sz);
 358
 359     if (m_isGBS)
 360     {
 361         wxGBSizerItem* gbsitem = (wxGBSizerItem*)sitem;
 362         gbsitem->SetPos(GetGBPos(wxT("cellpos")));
 363         gbsitem->SetSpan(GetGBSpan(wxT("cellspan")));
 364     }
 365 }
 366
 367 void wxSizerXmlHandler::AddSizerItem(wxSizerItem* sitem)
 368 {
 369     if (m_isGBS)
 370         ((wxGridBagSizer*)m_parentSizer)->Add((wxGBSizerItem*)sitem);
 371     else
 372         m_parentSizer->Add(sitem);
 373 }
 374
 375
 376
 377 //-----------------------------------------------------------------------------
 378 // wxStdDialogButtonSizerXmlHandler
 379 //-----------------------------------------------------------------------------
 380 #if wxUSE_BUTTON
 381
 382 IMPLEMENT_DYNAMIC_CLASS(wxStdDialogButtonSizerXmlHandler, wxXmlResourceHandler)
 383
 384 wxStdDialogButtonSizerXmlHandler::wxStdDialogButtonSizerXmlHandler()
 385     : m_isInside(false), m_parentSizer(NULL)
 386 {
 387 }
 388
 389 wxObject *wxStdDialogButtonSizerXmlHandler::DoCreateResource()
 390 {
 391     if (m_class == wxT("wxStdDialogButtonSizer"))
 392     {
 393         wxASSERT( !m_parentSizer );
 394
 395         wxSizer *s = m_parentSizer = new wxStdDialogButtonSizer;
 396         m_isInside = true;
 397
 398         CreateChildren(m_parent, true/*only this handler*/);
 399
 400         m_parentSizer->Realize();
 401
 402         m_isInside = false;
 403         m_parentSizer = NULL;
 404
 405         return s;
 406     }
 407     else // m_class == "button"
 408     {
 409         wxASSERT( m_parentSizer );
 410
 411         // find the item to be managed by this sizeritem
 412         wxXmlNode *n = GetParamNode(wxT("object"));
 413         if ( !n )
 414             n = GetParamNode(wxT("object_ref"));
 415
 416         // did we find one?
 417         if (n)
 418         {
 419             wxObject *item = CreateResFromNode(n, m_parent, NULL);
 420             wxButton *button = wxDynamicCast(item, wxButton);
 421
 422             if (button)
 423                 m_parentSizer->AddButton(button);
 424             else
 425                 wxLogError(wxT("Error in resource - expected button."));
 426
 427             return item;
 428         }
 429         else /*n == NULL*/
 430         {
 431             wxLogError(wxT("Error in resource: no button within wxStdDialogButtonSizer."));
 432             return NULL;
 433         }
 434     }
 435 }
 436
 437 bool wxStdDialogButtonSizerXmlHandler::CanHandle(wxXmlNode *node)
 438 {
 439     return (!m_isInside && IsOfClass(node, wxT("wxStdDialogButtonSizer"))) ||
 440            (m_isInside && IsOfClass(node, wxT("button")));
 441 }
 442 #endif // wxUSE_BUTTON
 443
 444 #endif // wxUSE_XRC