src/html/winpars.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        winpars.cpp
   3 // Purpose:     wxHtmlParser class (generic parser)
   4 // Author:      Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1999 Vaclav Slavik
   7 // Licence:     wxWindows Licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation
  13 #endif
  14
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/defs.h"
  18 #if wxUSE_HTML
  19
  20 #ifdef __BORDLANDC__
  21 #pragma hdrstop
  22 #endif
  23
  24 #ifndef WXPRECOMP
  25 #include "wx/wx.h"
  26 #endif
  27
  28 #include "wx/html/htmldefs.h"
  29 #include "wx/html/winpars.h"
  30 #include "wx/html/htmlwin.h"
  31
  32
  33 //-----------------------------------------------------------------------------
  34 // wxHtmlWinParser
  35 //-----------------------------------------------------------------------------
  36
  37
  38 wxList wxHtmlWinParser::m_Modules;
  39
  40 wxHtmlWinParser::wxHtmlWinParser(wxWindow *wnd) : wxHtmlParser()
  41 {
  42     m_Window = wnd;
  43     m_Container = NULL;
  44     m_DC = NULL;
  45     m_CharHeight = m_CharWidth = 0;
  46     m_UseLink = FALSE;
  47
  48     {
  49         int i, j, k, l, m;
  50         for (i = 0; i < 2; i++)
  51             for (j = 0; j < 2; j++)
  52                 for (k = 0; k < 2; k++)
  53                     for (l = 0; l < 2; l++)
  54                         for (m = 0; m < 7; m++)
  55                             m_FontsTable[i][j][k][l][m] = NULL;
  56 #ifdef __WXMSW__
  57         static int default_sizes[7] = {7, 8, 10, 12, 16, 22, 30};
  58 #else
  59         static int default_sizes[7] = {10, 12, 14, 16, 19, 24, 32};
  60 #endif
  61         SetFonts("", wxSLANT, "", wxSLANT, default_sizes);
  62     }
  63
  64     // fill in wxHtmlParser's tables:
  65     wxNode *node = m_Modules.GetFirst();
  66     while (node) {
  67         wxHtmlTagsModule *mod = (wxHtmlTagsModule*) node -> GetData();
  68         mod -> FillHandlersTable(this);
  69         node = node -> GetNext();
  70     }
  71 }
  72
  73
  74
  75 void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module)
  76 {
  77     m_Modules.Append(module);
  78 }
  79
  80
  81
  82 void wxHtmlWinParser::SetFonts(wxString normal_face, int normal_italic_mode, wxString fixed_face, int fixed_italic_mode, const int *sizes)
  83 {
  84     int i, j, k, l, m;
  85
  86     for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
  87     m_FontFaceFixed = fixed_face;
  88     m_FontFaceNormal = normal_face;
  89     m_ItalicModeFixed = fixed_italic_mode;
  90     m_ItalicModeNormal = normal_italic_mode;
  91
  92     for (i = 0; i < 2; i++)
  93         for (j = 0; j < 2; j++)
  94             for (k = 0; k < 2; k++)
  95                 for (l = 0; l < 2; l++)
  96                     for (m = 0; m < 7; m++) {
  97                         if (m_FontsTable[i][j][k][l][m] != NULL) {
  98                             delete m_FontsTable[i][j][k][l][m];
  99                             m_FontsTable[i][j][k][l][m] = NULL;
 100                         }
 101                     }
 102 }
 103
 104
 105
 106 void wxHtmlWinParser::InitParser(const wxString& source)
 107 {
 108     wxHtmlParser::InitParser(source);
 109     wxASSERT_MSG(m_DC != NULL, _("no DC assigned to wxHtmlWinParser!!"));
 110
 111     m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE;
 112     m_FontSize = 0;
 113     CreateCurrentFont();           // we're selecting default font into
 114     m_DC -> GetTextExtent("H", &m_CharWidth, &m_CharHeight);
 115                 /* NOTE : we're not using GetCharWidth/Height() because
 116                    of differences under X and win
 117                  */
 118
 119     m_Link = "";
 120     m_LinkColor.Set(0, 0, 0xFF);
 121     m_ActualColor.Set(0, 0, 0);
 122     m_Align = wxHTML_ALIGN_LEFT;
 123     m_tmpLastWasSpace = FALSE;
 124
 125     OpenContainer();
 126
 127     OpenContainer();
 128     m_Container -> InsertCell(new wxHtmlColourCell(m_ActualColor));
 129     m_Container -> InsertCell(new wxHtmlFontCell(CreateCurrentFont()));
 130 }
 131
 132
 133
 134 void wxHtmlWinParser::DoneParser()
 135 {
 136     m_Container = NULL;
 137     wxHtmlParser::DoneParser();
 138 }
 139
 140
 141
 142 wxObject* wxHtmlWinParser::GetProduct()
 143 {
 144     wxHtmlContainerCell *top;
 145
 146     CloseContainer();
 147     OpenContainer();
 148     GetContainer() -> SetIndent(m_CharHeight, wxHTML_INDENT_TOP);
 149     top = m_Container;
 150     while (top -> GetParent()) top = top -> GetParent();
 151     return top;
 152 }
 153
 154
 155
 156 wxList* wxHtmlWinParser::GetTempData()
 157 {
 158     int i, j, k, l, m;
 159     wxFont *f;
 160     wxList *lst = wxHtmlParser::GetTempData();
 161
 162     if (lst == NULL) lst = new wxList;
 163     lst -> DeleteContents(TRUE);
 164
 165     for (i = 0; i < 2; i++)
 166         for (j = 0; j < 2; j++)
 167             for (k = 0; k < 2; k++)
 168                 for (l = 0; l < 2; l++)
 169                     for (m = 0; m < 7; m++) {
 170                         f = m_FontsTable[i][j][k][l][m];
 171                         if (f) lst -> Append(f);
 172                     }
 173     return lst;
 174 }
 175
 176
 177
 178 void wxHtmlWinParser::AddText(const char* txt)
 179 {
 180     wxHtmlCell *c;
 181     int i = 0, x, lng = strlen(txt);
 182     char temp[wxHTML_BUFLEN];
 183     register char d;
 184     int templen = 0;
 185
 186     if (m_tmpLastWasSpace) {
 187         while ((i < lng) && ((txt[i] == '\n') || (txt[i] == '\r') || (txt[i] == ' ') || (txt[i] == '\t'))) i++;
 188     }
 189
 190     while (i < lng) {
 191         x = 0;
 192         d = temp[templen++] = txt[i];
 193         if ((d == '\n') || (d == '\r') || (d == ' ') || (d == '\t')) {
 194             i++, x++;
 195             while ((i < lng) && ((txt[i] == '\n') || (txt[i] == '\r') || (txt[i] == ' ') || (txt[i] == '\t'))) i++, x++;
 196         }
 197         else i++;
 198
 199         if (x) {
 200             temp[templen-1] = ' ';
 201             temp[templen] = 0;
 202             templen = 0;
 203             c = new wxHtmlWordCell(temp, *(GetDC()));
 204             if (m_UseLink) c -> SetLink(m_Link);
 205             m_Container -> InsertCell(c);
 206             m_tmpLastWasSpace = TRUE;
 207         }
 208     }
 209     if (templen) {
 210         temp[templen] = 0;
 211         c = new wxHtmlWordCell(temp, *(GetDC()));
 212         if (m_UseLink) c -> SetLink(m_Link);
 213         m_Container -> InsertCell(c);
 214         m_tmpLastWasSpace = FALSE;
 215     }
 216 }
 217
 218
 219
 220 wxHtmlContainerCell* wxHtmlWinParser::OpenContainer()
 221 {
 222     m_Container = new wxHtmlContainerCell(m_Container);
 223     m_Container -> SetAlignHor(m_Align);
 224     m_tmpLastWasSpace = TRUE;
 225         /* to avoid space being first character in paragraph */
 226     return m_Container;
 227 }
 228
 229
 230
 231 wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c)
 232 {
 233     m_tmpLastWasSpace = TRUE;
 234         /* to avoid space being first character in paragraph */
 235     return m_Container = c;
 236 }
 237
 238
 239
 240 wxHtmlContainerCell* wxHtmlWinParser::CloseContainer()
 241 {
 242     m_Container = m_Container -> GetParent();
 243     return m_Container;
 244 }
 245
 246
 247 wxFont* wxHtmlWinParser::CreateCurrentFont()
 248 {
 249     int fb = GetFontBold(),
 250         fi = GetFontItalic(),
 251         fu = GetFontUnderlined(),
 252         ff = GetFontFixed(),
 253         fs = GetFontSize() + 2 /*remap from <-2;4> to <0;7>*/ ;
 254
 255     if (m_FontsTable[fb][fi][fu][ff][fs] == NULL) {
 256         m_FontsTable[fb][fi][fu][ff][fs] =
 257             new wxFont(
 258                 m_FontsSizes[fs] * m_PixelScale,
 259                 ff ? wxMODERN : wxSWISS,
 260                 fi ? (ff ? m_ItalicModeFixed : m_ItalicModeNormal) : wxNORMAL,
 261                 fb ? wxBOLD : wxNORMAL,
 262                 fu ? TRUE : FALSE, ff ? m_FontFaceFixed : m_FontFaceNormal);
 263     }
 264     m_DC -> SetFont(*(m_FontsTable[fb][fi][fu][ff][fs]));
 265     return (m_FontsTable[fb][fi][fu][ff][fs]);
 266 }
 267
 268
 269
 270
 271 //-----------------------------------------------------------------------------
 272 // wxHtmlWinTagHandler
 273 //-----------------------------------------------------------------------------
 274
 275 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler)
 276
 277
 278
 279 //-----------------------------------------------------------------------------
 280 // wxHtmlTagsModule
 281 //-----------------------------------------------------------------------------
 282
 283
 284 IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule)
 285
 286
 287 bool wxHtmlTagsModule::OnInit()
 288 {
 289     wxHtmlWinParser::AddModule(this);
 290     return TRUE;
 291 }
 292
 293
 294
 295 void wxHtmlTagsModule::OnExit()
 296 {
 297 }
 298 #endif
 299