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 #ifdef __GNUG__
  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 #include "wx/xrc/xh_sizer.h"
  23 #include "wx/sizer.h"
  24 #include "wx/gbsizer.h"
  25 #include "wx/log.h"
  26 #include "wx/statbox.h"
  27 #include "wx/notebook.h"
  28 #include "wx/panel.h"
  29 #include "wx/tokenzr.h"
  30
  31
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxSizerXmlHandler, wxXmlResourceHandler)
  34
  35
  36
  37 wxSizerXmlHandler::wxSizerXmlHandler()
  38     : wxXmlResourceHandler(),
  39       m_isInside(FALSE),
  40       m_isGBS(FALSE),
  41       m_parentSizer(NULL)
  42 {
  43     XRC_ADD_STYLE(wxHORIZONTAL);
  44     XRC_ADD_STYLE(wxVERTICAL);
  45
  46     // and flags
  47     XRC_ADD_STYLE(wxLEFT);
  48     XRC_ADD_STYLE(wxRIGHT);
  49     XRC_ADD_STYLE(wxTOP);
  50     XRC_ADD_STYLE(wxBOTTOM);
  51     XRC_ADD_STYLE(wxNORTH);
  52     XRC_ADD_STYLE(wxSOUTH);
  53     XRC_ADD_STYLE(wxEAST);
  54     XRC_ADD_STYLE(wxWEST);
  55     XRC_ADD_STYLE(wxALL);
  56
  57     XRC_ADD_STYLE(wxGROW);
  58     XRC_ADD_STYLE(wxEXPAND);
  59     XRC_ADD_STYLE(wxSHAPED);
  60     XRC_ADD_STYLE(wxSTRETCH_NOT);
  61
  62     XRC_ADD_STYLE(wxALIGN_CENTER);
  63     XRC_ADD_STYLE(wxALIGN_CENTRE);
  64     XRC_ADD_STYLE(wxALIGN_LEFT);
  65     XRC_ADD_STYLE(wxALIGN_TOP);
  66     XRC_ADD_STYLE(wxALIGN_RIGHT);
  67     XRC_ADD_STYLE(wxALIGN_BOTTOM);
  68     XRC_ADD_STYLE(wxALIGN_CENTER_HORIZONTAL);
  69     XRC_ADD_STYLE(wxALIGN_CENTRE_HORIZONTAL);
  70     XRC_ADD_STYLE(wxALIGN_CENTER_VERTICAL);
  71     XRC_ADD_STYLE(wxALIGN_CENTRE_VERTICAL);
  72
  73     XRC_ADD_STYLE(wxADJUST_MINSIZE);
  74     XRC_ADD_STYLE(wxFIXED_MINSIZE);
  75 }
  76
  77
  78
  79 bool wxSizerXmlHandler::CanHandle(wxXmlNode *node)
  80 {
  81     return ( (!m_isInside && IsSizerNode(node)) ||
  82              (m_isInside && IsOfClass(node, wxT("sizeritem"))) ||
  83              (m_isInside && IsOfClass(node, wxT("spacer")))
  84         );
  85 }
  86
  87
  88 wxObject* wxSizerXmlHandler::DoCreateResource()
  89 {
  90     if (m_class == wxT("sizeritem"))
  91         return Handle_sizeritem();
  92
  93     else if (m_class == wxT("spacer"))
  94         return Handle_spacer();
  95
  96     else
  97         return Handle_sizer();
  98 }
  99
 100
 101
 102
 103 bool wxSizerXmlHandler::IsSizerNode(wxXmlNode *node)
 104 {
 105     return (IsOfClass(node, wxT("wxBoxSizer"))) ||
 106            (IsOfClass(node, wxT("wxStaticBoxSizer"))) ||
 107            (IsOfClass(node, wxT("wxGridSizer"))) ||
 108            (IsOfClass(node, wxT("wxFlexGridSizer"))) ||
 109            (IsOfClass(node, wxT("wxGridBagSizer")));
 110 }
 111
 112
 113 wxObject* wxSizerXmlHandler::Handle_sizeritem()
 114 {
 115     // find the item to be managed by this sizeritem
 116     wxXmlNode *n = GetParamNode(wxT("object"));
 117     if ( !n )
 118         n = GetParamNode(wxT("object_ref"));
 119
 120     // did we find one?
 121     if (n)
 122     {
 123         // create a sizer item for it
 124         wxSizerItem* sitem = MakeSizerItem();
 125         SetSizerItemAttributes(sitem);
 126
 127         // now fetch the item to be managed
 128         bool old_gbs = m_isGBS;
 129         bool old_ins = m_isInside;
 130         wxSizer *old_par = m_parentSizer;
 131         m_isInside = FALSE;
 132         if (!IsSizerNode(n)) m_parentSizer = NULL;
 133         wxObject *item = CreateResFromNode(n, m_parent, NULL);
 134         m_isInside = old_ins;
 135         m_parentSizer = old_par;
 136         m_isGBS = old_gbs;
 137
 138         // and figure out what type it is
 139         wxSizer *sizer = wxDynamicCast(item, wxSizer);
 140         wxWindow *wnd = wxDynamicCast(item, wxWindow);
 141
 142         if (sizer)
 143             sitem->SetSizer(sizer);
 144         else if (wnd)
 145             sitem->SetWindow(wnd);
 146         else
 147             wxLogError(wxT("Error in resource."));
 148
 149         AddSizerItem(sitem);
 150         return item;
 151     }
 152     else /*n == NULL*/
 153     {
 154         wxLogError(wxT("Error in resource: no window/sizer/spacer within sizeritem object."));
 155         return NULL;
 156     }
 157 }
 158
 159
 160 wxObject* wxSizerXmlHandler::Handle_spacer()
 161 {
 162     wxCHECK_MSG(m_parentSizer, NULL, wxT("Incorrect syntax of XRC resource: spacer not within sizer!"));
 163
 164     wxSizerItem* sitem = MakeSizerItem();
 165     SetSizerItemAttributes(sitem);
 166     sitem->SetSpacer(GetSize());
 167     AddSizerItem(sitem);
 168     return NULL;
 169 }
 170
 171
 172 wxObject* wxSizerXmlHandler::Handle_sizer()
 173 {
 174     wxSizer *sizer = NULL;
 175
 176     wxXmlNode *parentNode = m_node->GetParent();
 177
 178     wxCHECK_MSG(m_parentSizer != NULL ||
 179                 (parentNode && parentNode->GetType() == wxXML_ELEMENT_NODE &&
 180                  m_parentAsWindow != NULL &&
 181                  (m_parentAsWindow->IsKindOf(CLASSINFO(wxPanel)) ||
 182                   m_parentAsWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 183                   m_parentAsWindow->IsKindOf(CLASSINFO(wxDialog)))
 184                     ), NULL,
 185                 wxT("Incorrect use of sizer: parent is not 'wxDialog', 'wxFrame' or 'wxPanel'."));
 186
 187     if (m_class == wxT("wxBoxSizer"))
 188         sizer = Handle_wxBoxSizer();
 189
 190     else if (m_class == wxT("wxStaticBoxSizer"))
 191         sizer = Handle_wxStaticBoxSizer();
 192
 193     else if (m_class == wxT("wxGridSizer"))
 194         sizer = Handle_wxGridSizer();
 195
 196     else if (m_class == wxT("wxFlexGridSizer"))
 197         sizer = Handle_wxFlexGridSizer();
 198
 199     else if (m_class == wxT("wxGridBagSizer"))
 200         sizer = Handle_wxGridBagSizer();
 201
 202
 203     wxSize minsize = GetSize(wxT("minsize"));
 204     if (!(minsize == wxDefaultSize))
 205         sizer->SetMinSize(minsize);
 206
 207     // save state
 208     wxSizer *old_par = m_parentSizer;
 209     bool old_ins = m_isInside;
 210
 211     // set new state
 212     m_parentSizer = sizer;
 213     m_isInside = TRUE;
 214     m_isGBS = (m_class == wxT("wxGridBagSizer"));
 215
 216     CreateChildren(m_parent, TRUE/*only this handler*/);
 217
 218     // restore state
 219     m_isInside = old_ins;
 220     m_parentSizer = old_par;
 221
 222     if (m_parentSizer == NULL) // setup window:
 223     {
 224         m_parentAsWindow->SetAutoLayout(TRUE);
 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->SetInitSize(sz.x, sz.y);
 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 }
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