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                 wxT("Sizer must have a window parent node"));
 190
 191     if (m_class == wxT("wxBoxSizer"))
 192         sizer = Handle_wxBoxSizer();
 193
 194     else if (m_class == wxT("wxStaticBoxSizer"))
 195         sizer = Handle_wxStaticBoxSizer();
 196
 197     else if (m_class == wxT("wxGridSizer"))
 198         sizer = Handle_wxGridSizer();
 199
 200     else if (m_class == wxT("wxFlexGridSizer"))
 201         sizer = Handle_wxFlexGridSizer();
 202
 203     else if (m_class == wxT("wxGridBagSizer"))
 204         sizer = Handle_wxGridBagSizer();
 205
 206     if ( !sizer )
 207     {
 208         wxLogError(_T("Failed to create size of class \"%s\""), m_class.c_str());
 209         return NULL;
 210     }
 211
 212     wxSize minsize = GetSize(wxT("minsize"));
 213     if (!(minsize == wxDefaultSize))
 214         sizer->SetMinSize(minsize);
 215
 216     // save state
 217     wxSizer *old_par = m_parentSizer;
 218     bool old_ins = m_isInside;
 219
 220     // set new state
 221     m_parentSizer = sizer;
 222     m_isInside = true;
 223     m_isGBS = (m_class == wxT("wxGridBagSizer"));
 224
 225     CreateChildren(m_parent, true/*only this handler*/);
 226
 227     // restore state
 228     m_isInside = old_ins;
 229     m_parentSizer = old_par;
 230
 231     if (m_parentSizer == NULL) // setup window:
 232     {
 233         m_parentAsWindow->SetSizer(sizer);
 234
 235         wxXmlNode *nd = m_node;
 236         m_node = parentNode;
 237         if (GetSize() == wxDefaultSize)
 238             sizer->Fit(m_parentAsWindow);
 239         m_node = nd;
 240
 241         if (m_parentAsWindow->GetWindowStyle() & (wxMAXIMIZE_BOX | wxRESIZE_BORDER))
 242             sizer->SetSizeHints(m_parentAsWindow);
 243     }
 244
 245     return sizer;
 246 }
 247
 248
 249 wxSizer*  wxSizerXmlHandler::Handle_wxBoxSizer()
 250 {
 251     return new wxBoxSizer(GetStyle(wxT("orient"), wxHORIZONTAL));
 252 }
 253
 254 wxSizer*  wxSizerXmlHandler::Handle_wxStaticBoxSizer()
 255 {
 256     return new wxStaticBoxSizer(
 257             new wxStaticBox(m_parentAsWindow,
 258                             GetID(),
 259                             GetText(wxT("label")),
 260                             wxDefaultPosition, wxDefaultSize,
 261                             0/*style*/,
 262                             GetName()),
 263             GetStyle(wxT("orient"), wxHORIZONTAL));
 264 }
 265
 266 wxSizer*  wxSizerXmlHandler::Handle_wxGridSizer()
 267 {
 268     return new wxGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 269                            GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 270 }
 271
 272
 273 wxSizer*  wxSizerXmlHandler::Handle_wxFlexGridSizer()
 274 {
 275     wxFlexGridSizer *sizer =
 276         new wxFlexGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 277                             GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 278     SetGrowables(sizer, wxT("growablerows"), true);
 279     SetGrowables(sizer, wxT("growablecols"), false);
 280     return sizer;
 281 }
 282
 283
 284 wxSizer*  wxSizerXmlHandler::Handle_wxGridBagSizer()
 285 {
 286     wxGridBagSizer *sizer =
 287         new wxGridBagSizer(GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 288     SetGrowables(sizer, wxT("growablerows"), true);
 289     SetGrowables(sizer, wxT("growablecols"), false);
 290     return sizer;
 291 }
 292
 293
 294
 295
 296 void wxSizerXmlHandler::SetGrowables(wxFlexGridSizer* sizer,
 297                                      const wxChar* param,
 298                                      bool rows)
 299 {
 300     wxStringTokenizer tkn;
 301     unsigned long l;
 302     tkn.SetString(GetParamValue(param), wxT(","));
 303     while (tkn.HasMoreTokens())
 304     {
 305         if (!tkn.GetNextToken().ToULong(&l))
 306             wxLogError(wxT("growable[rows|cols] must be comma-separated list of row numbers"));
 307         else {
 308             if (rows)
 309                 sizer->AddGrowableRow(l);
 310             else
 311                 sizer->AddGrowableCol(l);
 312         }
 313     }
 314 }
 315
 316
 317 wxGBPosition wxSizerXmlHandler::GetGBPos(const wxString& param)
 318 {
 319     wxSize sz = GetSize(param);
 320     if (sz.x < 0) sz.x = 0;
 321     if (sz.y < 0) sz.y = 0;
 322     return wxGBPosition(sz.x, sz.y);
 323 }
 324
 325 wxGBSpan wxSizerXmlHandler::GetGBSpan(const wxString& param)
 326 {
 327     wxSize sz = GetSize(param);
 328     if (sz.x < 1) sz.x = 1;
 329     if (sz.y < 1) sz.y = 1;
 330     return wxGBSpan(sz.x, sz.y);
 331 }
 332
 333
 334
 335 wxSizerItem* wxSizerXmlHandler::MakeSizerItem()
 336 {
 337     if (m_isGBS)
 338         return new wxGBSizerItem();
 339     else
 340         return new wxSizerItem();
 341 }
 342
 343 void wxSizerXmlHandler::SetSizerItemAttributes(wxSizerItem* sitem)
 344 {
 345     sitem->SetProportion(GetLong(wxT("option")));  // Should this check for "proportion" too?
 346     sitem->SetFlag(GetStyle(wxT("flag")));
 347     sitem->SetBorder(GetDimension(wxT("border")));
 348     wxSize sz = GetSize(wxT("minsize"));
 349     if (!(sz == wxDefaultSize))
 350         sitem->SetMinSize(sz);
 351     sz = GetSize(wxT("ratio"));
 352     if (!(sz == wxDefaultSize))
 353         sitem->SetRatio(sz);
 354
 355     if (m_isGBS)
 356     {
 357         wxGBSizerItem* gbsitem = (wxGBSizerItem*)sitem;
 358         gbsitem->SetPos(GetGBPos(wxT("cellpos")));
 359         gbsitem->SetSpan(GetGBSpan(wxT("cellspan")));
 360     }
 361 }
 362
 363 void wxSizerXmlHandler::AddSizerItem(wxSizerItem* sitem)
 364 {
 365     if (m_isGBS)
 366         ((wxGridBagSizer*)m_parentSizer)->Add((wxGBSizerItem*)sitem);
 367     else
 368         m_parentSizer->Add(sitem);
 369 }
 370
 371
 372
 373 //-----------------------------------------------------------------------------
 374 // wxStdDialogButtonSizerXmlHandler
 375 //-----------------------------------------------------------------------------
 376 #if wxUSE_BUTTON
 377
 378 IMPLEMENT_DYNAMIC_CLASS(wxStdDialogButtonSizerXmlHandler, wxXmlResourceHandler)
 379
 380 wxStdDialogButtonSizerXmlHandler::wxStdDialogButtonSizerXmlHandler()
 381     : m_isInside(false), m_parentSizer(NULL)
 382 {
 383 }
 384
 385 wxObject *wxStdDialogButtonSizerXmlHandler::DoCreateResource()
 386 {
 387     if (m_class == wxT("wxStdDialogButtonSizer"))
 388     {
 389         wxASSERT( !m_parentSizer );
 390
 391         wxSizer *s = m_parentSizer = new wxStdDialogButtonSizer;
 392         m_isInside = true;
 393
 394         CreateChildren(m_parent, true/*only this handler*/);
 395
 396         m_parentSizer->Realize();
 397
 398         m_isInside = false;
 399         m_parentSizer = NULL;
 400
 401         return s;
 402     }
 403     else // m_class == "button"
 404     {
 405         wxASSERT( m_parentSizer );
 406
 407         // find the item to be managed by this sizeritem
 408         wxXmlNode *n = GetParamNode(wxT("object"));
 409         if ( !n )
 410             n = GetParamNode(wxT("object_ref"));
 411
 412         // did we find one?
 413         if (n)
 414         {
 415             wxObject *item = CreateResFromNode(n, m_parent, NULL);
 416             wxButton *button = wxDynamicCast(item, wxButton);
 417
 418             if (button)
 419                 m_parentSizer->AddButton(button);
 420             else
 421                 wxLogError(wxT("Error in resource - expected button."));
 422
 423             return item;
 424         }
 425         else /*n == NULL*/
 426         {
 427             wxLogError(wxT("Error in resource: no button within wxStdDialogButtonSizer."));
 428             return NULL;
 429         }
 430     }
 431 }
 432
 433 bool wxStdDialogButtonSizerXmlHandler::CanHandle(wxXmlNode *node)
 434 {
 435     return (!m_isInside && IsOfClass(node, wxT("wxStdDialogButtonSizer"))) ||
 436            (m_isInside && IsOfClass(node, wxT("button")));
 437 }
 438 #endif // wxUSE_BUTTON
 439
 440 #endif // wxUSE_XRC