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 }
  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         SetSizerItemAttributes(sitem);
 125
 126         // now fetch the item to be managed
 127         bool old_gbs = m_isGBS;
 128         bool old_ins = m_isInside;
 129         wxSizer *old_par = m_parentSizer;
 130         m_isInside = FALSE;
 131         if (!IsSizerNode(n)) m_parentSizer = NULL;
 132         wxObject *item = CreateResFromNode(n, m_parent, NULL);
 133         m_isInside = old_ins;
 134         m_parentSizer = old_par;
 135         m_isGBS = old_gbs;
 136
 137         // and figure out what type it is
 138         wxSizer *sizer = wxDynamicCast(item, wxSizer);
 139         wxWindow *wnd = wxDynamicCast(item, wxWindow);
 140
 141         if (sizer)
 142             sitem->SetSizer(sizer);
 143         else if (wnd)
 144             sitem->SetWindow(wnd);
 145         else
 146             wxLogError(wxT("Error in resource."));
 147
 148         AddSizerItem(sitem);
 149         return item;
 150     }
 151     else /*n == NULL*/
 152     {
 153         wxLogError(wxT("Error in resource: no window/sizer/spacer within sizeritem object."));
 154         return NULL;
 155     }
 156 }
 157
 158
 159 wxObject* wxSizerXmlHandler::Handle_spacer()
 160 {
 161     wxCHECK_MSG(m_parentSizer, NULL, wxT("Incorrect syntax of XRC resource: spacer not within sizer!"));
 162
 163     wxSizerItem* sitem = MakeSizerItem();
 164     SetSizerItemAttributes(sitem);
 165     sitem->SetSpacer(GetSize());
 166     AddSizerItem(sitem);
 167     return NULL;
 168 }
 169
 170
 171 wxObject* wxSizerXmlHandler::Handle_sizer()
 172 {
 173     wxSizer *sizer = NULL;
 174
 175     wxXmlNode *parentNode = m_node->GetParent();
 176
 177     wxCHECK_MSG(m_parentSizer != NULL ||
 178                 (parentNode->GetType() == wxXML_ELEMENT_NODE &&
 179                  m_parentAsWindow != NULL &&
 180                  (m_parentAsWindow->IsKindOf(CLASSINFO(wxPanel)) ||
 181                   m_parentAsWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 182                   m_parentAsWindow->IsKindOf(CLASSINFO(wxDialog)))
 183                     ), NULL,
 184                 wxT("Incorrect use of sizer: parent is not 'wxDialog', 'wxFrame' or 'wxPanel'."));
 185
 186     if (m_class == wxT("wxBoxSizer"))
 187         sizer = Handle_wxBoxSizer();
 188
 189     else if (m_class == wxT("wxStaticBoxSizer"))
 190         sizer = Handle_wxStaticBoxSizer();
 191
 192     else if (m_class == wxT("wxGridSizer"))
 193         sizer = Handle_wxGridSizer();
 194
 195     else if (m_class == wxT("wxFlexGridSizer"))
 196         sizer = Handle_wxFlexGridSizer();
 197
 198     else if (m_class == wxT("wxGridBagSizer"))
 199         sizer = Handle_wxGridBagSizer();
 200
 201
 202     wxSize minsize = GetSize(wxT("minsize"));
 203     if (!(minsize == wxDefaultSize))
 204         sizer->SetMinSize(minsize);
 205
 206     // save state
 207     wxSizer *old_par = m_parentSizer;
 208     bool old_ins = m_isInside;
 209     bool old_gbs = m_isGBS;
 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     old_gbs = m_isGBS;
 220     m_isInside = old_ins;
 221     m_parentSizer = old_par;
 222
 223     if (m_parentSizer == NULL) // setup window:
 224     {
 225         m_parentAsWindow->SetAutoLayout(TRUE);
 226         m_parentAsWindow->SetSizer(sizer);
 227
 228         wxXmlNode *nd = m_node;
 229         m_node = parentNode;
 230         if (GetSize() == wxDefaultSize)
 231             sizer->Fit(m_parentAsWindow);
 232         m_node = nd;
 233
 234         if (m_parentAsWindow->GetWindowStyle() & (wxRESIZE_BOX | wxRESIZE_BORDER))
 235             sizer->SetSizeHints(m_parentAsWindow);
 236     }
 237
 238     return sizer;
 239 }
 240
 241
 242 wxSizer*  wxSizerXmlHandler::Handle_wxBoxSizer()
 243 {
 244     return new wxBoxSizer(GetStyle(wxT("orient"), wxHORIZONTAL));
 245 }
 246
 247 wxSizer*  wxSizerXmlHandler::Handle_wxStaticBoxSizer()
 248 {
 249     return new wxStaticBoxSizer(
 250             new wxStaticBox(m_parentAsWindow,
 251                             GetID(),
 252                             GetText(wxT("label")),
 253                             wxDefaultPosition, wxDefaultSize,
 254                             0/*style*/,
 255                             GetName()),
 256             GetStyle(wxT("orient"), wxHORIZONTAL));
 257 }
 258
 259 wxSizer*  wxSizerXmlHandler::Handle_wxGridSizer()
 260 {
 261     return new wxGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 262                            GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 263 }
 264
 265
 266 wxSizer*  wxSizerXmlHandler::Handle_wxFlexGridSizer()
 267 {
 268     wxFlexGridSizer *sizer =
 269         new wxFlexGridSizer(GetLong(wxT("rows")), GetLong(wxT("cols")),
 270                             GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 271     SetGrowables(sizer, wxT("growablerows"), true);
 272     SetGrowables(sizer, wxT("growablecols"), false);
 273     return sizer;
 274 }
 275
 276
 277 wxSizer*  wxSizerXmlHandler::Handle_wxGridBagSizer()
 278 {
 279     wxGridBagSizer *sizer =
 280         new wxGridBagSizer(GetDimension(wxT("vgap")), GetDimension(wxT("hgap")));
 281     SetGrowables(sizer, wxT("growablerows"), true);
 282     SetGrowables(sizer, wxT("growablecols"), false);
 283     return sizer;
 284 }
 285
 286
 287
 288
 289 void wxSizerXmlHandler::SetGrowables(wxFlexGridSizer* sizer,
 290                                      const wxChar* param,
 291                                      bool rows)
 292 {
 293     wxStringTokenizer tkn;
 294     unsigned long l;
 295     tkn.SetString(GetParamValue(param), wxT(","));
 296     while (tkn.HasMoreTokens())
 297     {
 298         if (!tkn.GetNextToken().ToULong(&l))
 299             wxLogError(wxT("growable[rows|cols] must be comma-separated list of row numbers"));
 300         else {
 301             if (rows)
 302                 sizer->AddGrowableRow(l);
 303             else
 304                 sizer->AddGrowableCol(l);
 305         }
 306     }
 307 }
 308
 309
 310 wxGBPosition wxSizerXmlHandler::GetGBPos(const wxString& param)
 311 {
 312     wxSize sz = GetSize(param);
 313     if (sz.x < 0) sz.x = 0;
 314     if (sz.y < 0) sz.y = 0;
 315     return wxGBPosition(sz.x, sz.y);
 316 }
 317
 318 wxGBSpan wxSizerXmlHandler::GetGBSpan(const wxString& param)
 319 {
 320     wxSize sz = GetSize(param);
 321     if (sz.x < 1) sz.x = 1;
 322     if (sz.y < 1) sz.y = 1;
 323     return wxGBSpan(sz.x, sz.y);
 324 }
 325
 326
 327
 328 wxSizerItem* wxSizerXmlHandler::MakeSizerItem()
 329 {
 330     if (m_isGBS)
 331         return new wxGBSizerItem();
 332     else
 333         return new wxSizerItem();
 334 }
 335
 336 void wxSizerXmlHandler::SetSizerItemAttributes(wxSizerItem* sitem)
 337 {
 338     sitem->SetProportion(GetLong(wxT("option")));  // Should this check for "proportion" too?
 339     sitem->SetFlag(GetStyle(wxT("flag")));
 340     sitem->SetBorder(GetDimension(wxT("border")));
 341     wxSize sz = GetSize(wxT("minsize"));
 342     if (!(sz == wxDefaultSize))
 343         sitem->SetInitSize(sz.x, sz.y);
 344     sz = GetSize(wxT("ratio"));
 345     if (!(sz == wxDefaultSize))
 346         sitem->SetRatio(sz);
 347
 348     if (m_isGBS)
 349     {
 350         wxGBSizerItem* gbsitem = (wxGBSizerItem*)sitem;
 351         gbsitem->SetPos(GetGBPos(wxT("cellpos")));
 352         gbsitem->SetSpan(GetGBSpan(wxT("cellspan")));
 353     }
 354 }
 355
 356 void wxSizerXmlHandler::AddSizerItem(wxSizerItem* sitem)
 357 {
 358     if (m_isGBS)
 359         ((wxGridBagSizer*)m_parentSizer)->Add((wxGBSizerItem*)sitem);
 360     else
 361         m_parentSizer->Add(sitem);
 362 }
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