src/html/htmprint.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        htmprint.cpp
   3 // Purpose:     html printing classes
   4 // Author:      Vaclav Slavik
   5 // Created:     25/09/99
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Vaclav Slavik, 1999
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 #ifdef __GNUG__
  13 #pragma implementation
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx/wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #include "wx/defs.h"
  20
  21 #ifdef __BORLANDC__
  22 #pragma hdrstop
  23 #endif
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/wx.h"
  27 #endif
  28
  29 #if wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE
  30
  31 #include "wx/print.h"
  32 #include "wx/printdlg.h"
  33 #include "wx/html/htmprint.h"
  34 #include "wx/wxhtml.h"
  35 #include "wx/wfstream.h"
  36
  37
  38 //--------------------------------------------------------------------------------
  39 // wxHtmlDCRenderer
  40 //--------------------------------------------------------------------------------
  41
  42
  43 wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
  44 {
  45     m_DC = NULL;
  46     m_Width = m_Height = 0;
  47     m_Cells = NULL;
  48     m_Parser = new wxHtmlWinParser(NULL);
  49     m_FS = new wxFileSystem();
  50     m_Parser -> SetFS(m_FS);
  51 }
  52
  53
  54
  55 wxHtmlDCRenderer::~wxHtmlDCRenderer()
  56 {
  57     if (m_Cells) delete m_Cells;
  58     if (m_Parser) delete m_Parser;
  59     if (m_FS) delete m_FS;
  60 }
  61
  62
  63
  64 void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale)
  65 {
  66     m_DC = dc;
  67     m_Parser -> SetDC(m_DC, pixel_scale);
  68 }
  69
  70
  71
  72 void wxHtmlDCRenderer::SetSize(int width, int height)
  73 {
  74     m_Width = width;
  75     m_Height = height;
  76 }
  77
  78
  79
  80 void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
  81 {
  82     if (m_DC == NULL) return;
  83
  84     if (m_Cells != NULL) delete m_Cells;
  85
  86     m_FS -> ChangePathTo(basepath, isdir);
  87     m_Cells = (wxHtmlContainerCell*) m_Parser -> Parse(html);
  88     m_Cells -> SetIndent(0, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
  89     m_Cells -> Layout(m_Width);
  90 }
  91
  92
  93
  94 int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render)
  95 {
  96     int pbreak, hght;
  97
  98     if (m_Cells == NULL || m_DC == NULL) return 0;
  99
 100     pbreak = (int)(from + m_Height);
 101     while (m_Cells -> AdjustPagebreak(&pbreak)) {}
 102     hght = pbreak - from;
 103
 104     if (!dont_render) {
 105         m_DC -> SetBrush(*wxWHITE_BRUSH);
 106
 107         m_DC -> SetClippingRegion(x, y, m_Width, hght);
 108         m_Cells -> Draw(*m_DC,
 109                         x, (y - from),
 110                         y, pbreak + (y /*- from*/));
 111         m_DC -> DestroyClippingRegion();
 112     }
 113
 114     if (pbreak < m_Cells -> GetHeight()) return pbreak;
 115     else return GetTotalHeight();
 116 }
 117
 118
 119
 120 int wxHtmlDCRenderer::GetTotalHeight()
 121 {
 122     if (m_Cells) return m_Cells -> GetHeight();
 123     else return 0;
 124 }
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141 //--------------------------------------------------------------------------------
 142 // wxHtmlPrintout
 143 //--------------------------------------------------------------------------------
 144
 145
 146
 147 wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
 148 {
 149     m_Renderer = new wxHtmlDCRenderer;
 150     m_RendererHdr = new wxHtmlDCRenderer;
 151     m_NumPages = wxHTML_PRINT_MAX_PAGES;
 152     m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = TRUE;
 153     m_Headers[0] = m_Headers[1] = wxEmptyString;
 154     m_Footers[0] = m_Footers[1] = wxEmptyString;
 155     m_HeaderHeight = m_FooterHeight = 0;
 156     SetMargins(); // to default values
 157 }
 158
 159
 160
 161 wxHtmlPrintout::~wxHtmlPrintout()
 162 {
 163     delete m_Renderer;
 164     delete m_RendererHdr;
 165 }
 166
 167
 168
 169 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 170 {
 171     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 172     float ppmm_h, ppmm_v;
 173
 174     if (!wxPrintout::OnBeginDocument(startPage, endPage)) return FALSE;
 175
 176     GetPageSizePixels(&pageWidth, &pageHeight);
 177     GetPageSizeMM(&mm_w, &mm_h);
 178     ppmm_h = (float)pageWidth / mm_w;
 179     ppmm_v = (float)pageHeight / mm_h;
 180
 181     int ppiPrinterX, ppiPrinterY;
 182     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 183     int ppiScreenX, ppiScreenY;
 184     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 185
 186     wxDisplaySize(&scr_w, &scr_h);
 187     GetDC() -> GetSize(&dc_w, &dc_h);
 188
 189     GetDC() -> SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
 190
 191     /* prepare headers/footers renderer: */
 192
 193     m_RendererHdr -> SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 194     m_RendererHdr -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop),
 195                           ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
 196     if (m_Headers[0] != wxEmptyString) {
 197         m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[0], 1));
 198         m_HeaderHeight = m_RendererHdr -> GetTotalHeight();
 199     }
 200     else if (m_Headers[1] != wxEmptyString) {
 201         m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[1], 1));
 202         m_HeaderHeight = m_RendererHdr -> GetTotalHeight();
 203     }
 204     if (m_Footers[0] != wxEmptyString) {
 205         m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[0], 1));
 206         m_FooterHeight = m_RendererHdr -> GetTotalHeight();
 207     }
 208     else if (m_Footers[1] != wxEmptyString) {
 209         m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[1], 1));
 210         m_FooterHeight = m_RendererHdr -> GetTotalHeight();
 211     }
 212
 213     /* prepare main renderer: */
 214     m_Renderer -> SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 215     m_Renderer -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop),
 216                           ppmm_v * (mm_h - m_MarginTop - m_MarginBottom) -
 217                           m_FooterHeight - m_HeaderHeight -
 218                           ((m_HeaderHeight == 0) ? 0 : m_MarginSpace * ppmm_v) -
 219                           ((m_FooterHeight == 0) ? 0 : m_MarginSpace * ppmm_v)
 220                           );
 221     m_Renderer -> SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
 222     CountPages();
 223     return TRUE;
 224 }
 225
 226
 227 bool wxHtmlPrintout::OnPrintPage(int page)
 228 {
 229     wxDC *dc = GetDC();
 230     if (dc) {
 231         if (HasPage(page))
 232             RenderPage(dc, page);
 233         return TRUE;
 234     } else
 235         return FALSE;
 236 }
 237
 238
 239 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 240 {
 241     *minPage = 1;
 242     *maxPage = wxHTML_PRINT_MAX_PAGES;
 243     *selPageFrom = 1;
 244     *selPageTo = wxHTML_PRINT_MAX_PAGES;
 245 }
 246
 247
 248
 249 bool wxHtmlPrintout::HasPage(int pageNum)
 250 {
 251     return (pageNum >= 1 && pageNum <= m_NumPages);
 252 }
 253
 254
 255
 256 void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
 257 {
 258     m_Document = html;
 259     m_BasePath = basepath;
 260     m_BasePathIsDir = isdir;
 261 }
 262
 263
 264
 265 void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 266 {
 267     wxFileSystem fs;
 268     wxFSFile *ff = fs.OpenFile(htmlfile);
 269     wxInputStream *st = ff -> GetStream();
 270     char *t = new char[st -> GetSize() + 1];
 271     st -> Read(t, st -> GetSize());
 272     t[st -> GetSize()] = 0;
 273
 274     wxString doc = wxString(t);
 275     delete t;
 276     delete ff;
 277
 278     SetHtmlText(doc, htmlfile, FALSE);
 279 }
 280
 281
 282
 283 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 284 {
 285     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 286         m_Headers[0] = header;
 287     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 288         m_Headers[1] = header;
 289 }
 290
 291
 292
 293 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 294 {
 295     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 296         m_Footers[0] = footer;
 297     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 298         m_Footers[1] = footer;
 299 }
 300
 301
 302
 303 void wxHtmlPrintout::CountPages()
 304 {
 305     wxBusyCursor wait;
 306     int pageWidth, pageHeight, mm_w, mm_h;
 307     float ppmm_h, ppmm_v;
 308
 309     GetPageSizePixels(&pageWidth, &pageHeight);
 310     GetPageSizeMM(&mm_w, &mm_h);
 311     ppmm_h = (float)pageWidth / mm_w;
 312     ppmm_v = (float)pageHeight / mm_h;
 313
 314     int pos = 0;
 315
 316     m_NumPages = 0;
 317
 318     m_PageBreaks[0] = 0;
 319     do {
 320         pos = m_Renderer -> Render(ppmm_h * m_MarginLeft,
 321                                    ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
 322                                    pos, TRUE);
 323         m_PageBreaks[++m_NumPages] = pos;
 324     } while (pos < m_Renderer -> GetTotalHeight());
 325 }
 326
 327
 328
 329 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 330 {
 331     wxBusyCursor wait;
 332
 333     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 334     float ppmm_h, ppmm_v;
 335
 336     GetPageSizePixels(&pageWidth, &pageHeight);
 337     GetPageSizeMM(&mm_w, &mm_h);
 338     ppmm_h = (float)pageWidth / mm_w;
 339     ppmm_v = (float)pageHeight / mm_h;
 340     wxDisplaySize(&scr_w, &scr_h);
 341     dc -> GetSize(&dc_w, &dc_h);
 342
 343     int ppiPrinterX, ppiPrinterY;
 344     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 345     int ppiScreenX, ppiScreenY;
 346     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 347
 348     dc -> SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
 349
 350     m_Renderer -> SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 351
 352     dc -> SetBackgroundMode(wxTRANSPARENT);
 353
 354     m_Renderer -> Render(ppmm_h * m_MarginLeft,
 355                          ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
 356                          m_PageBreaks[page-1]);
 357
 358     m_RendererHdr -> SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 359     if (m_Headers[page % 2] != wxEmptyString) {
 360         m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 361         m_RendererHdr -> Render(ppmm_h * m_MarginLeft, ppmm_v * m_MarginTop);
 362     }
 363     if (m_Footers[page % 2] != wxEmptyString) {
 364         m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 365         m_RendererHdr -> Render(ppmm_h * m_MarginLeft, pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight);
 366     }
 367 }
 368
 369
 370
 371 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 372 {
 373     wxString r = instr;
 374     wxString num;
 375
 376     num.Printf(wxT("%i"), page);
 377     r.Replace(wxT("@PAGENUM@"), num);
 378
 379     num.Printf(wxT("%i"), m_NumPages);
 380     r.Replace(wxT("@PAGESCNT@"), num);
 381
 382     return r;
 383 }
 384
 385
 386
 387 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 388 {
 389     m_MarginTop = top;
 390     m_MarginBottom = bottom;
 391     m_MarginLeft = left;
 392     m_MarginRight = right;
 393     m_MarginSpace = spaces;
 394 }
 395
 396
 397
 398
 399
 400
 401 //--------------------------------------------------------------------------------
 402 // wxHtmlEasyPrinting
 403 //--------------------------------------------------------------------------------
 404
 405
 406 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxFrame *parent_frame)
 407 {
 408     m_Frame = parent_frame;
 409     m_Name = name;
 410     m_PrintData = new wxPrintData;
 411 #if (defined __WXGTK__) || (defined __WXMOTIF__)
 412     (*m_PrintData) = (*wxThePrintSetupData);
 413 #endif
 414     m_PageSetupData = new wxPageSetupDialogData;
 415     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 416
 417     m_PageSetupData -> EnableMargins(TRUE);
 418     m_PageSetupData -> SetMarginTopLeft(wxPoint(25, 25));
 419     m_PageSetupData -> SetMarginBottomRight(wxPoint(25, 25));
 420 }
 421
 422
 423
 424 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 425 {
 426     delete m_PrintData;
 427     delete m_PageSetupData;
 428 }
 429
 430
 431
 432 void wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 433 {
 434     wxHtmlPrintout *p1 = CreatePrintout();
 435     p1 -> SetHtmlFile(htmlfile);
 436     wxHtmlPrintout *p2 = CreatePrintout();
 437     p2 -> SetHtmlFile(htmlfile);
 438     DoPreview(p1, p2);
 439 }
 440
 441
 442
 443 void wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 444 {
 445     wxHtmlPrintout *p1 = CreatePrintout();
 446     p1 -> SetHtmlText(htmltext, basepath, TRUE);
 447     wxHtmlPrintout *p2 = CreatePrintout();
 448     p2 -> SetHtmlText(htmltext, basepath, TRUE);
 449     DoPreview(p1, p2);
 450 }
 451
 452
 453
 454 void wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 455 {
 456     wxHtmlPrintout *p = CreatePrintout();
 457     p -> SetHtmlFile(htmlfile);
 458     DoPrint(p);
 459 }
 460
 461
 462
 463 void wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 464 {
 465     wxHtmlPrintout *p = CreatePrintout();
 466     p -> SetHtmlText(htmltext, basepath, TRUE);
 467     DoPrint(p);
 468 }
 469
 470
 471
 472 void wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 473 {
 474     // Pass two printout objects: for preview, and possible printing.
 475     wxPrintDialogData printDialogData(*m_PrintData);
 476     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 477     if (!preview -> Ok()) {
 478         delete preview;
 479         wxMessageBox(_("There was a problem previewing.\nPerhaps your current printer is not set correctly?"), _("Previewing"), wxOK);
 480     }
 481
 482     else {
 483         wxPreviewFrame *frame = new wxPreviewFrame(preview, m_Frame,
 484                                                    m_Name + _(" Preview"),
 485                                                    wxPoint(100, 100), wxSize(650, 500));
 486         frame -> Centre(wxBOTH);
 487         frame -> Initialize();
 488         frame -> Show(TRUE);
 489     }
 490 }
 491
 492
 493
 494 void wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 495 {
 496     wxPrintDialogData printDialogData(*m_PrintData);
 497     wxPrinter printer(&printDialogData);
 498
 499     if (!printer.Print(m_Frame, printout, TRUE))
 500         wxMessageBox(_("There was a problem printing.\nPerhaps your current printer is not set correctly?"), _("Printing"), wxOK);
 501     else
 502         (*m_PrintData) = printer.GetPrintDialogData().GetPrintData();
 503 }
 504
 505
 506
 507 void wxHtmlEasyPrinting::PrinterSetup()
 508 {
 509     wxPrintDialogData printDialogData(*m_PrintData);
 510     wxPrintDialog printerDialog(m_Frame, &printDialogData);
 511
 512     printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
 513
 514     if (printerDialog.ShowModal() == wxID_OK)
 515         (*m_PrintData) = printerDialog.GetPrintDialogData().GetPrintData();
 516 }
 517
 518
 519
 520 void wxHtmlEasyPrinting::PageSetup()
 521 {
 522     m_PageSetupData -> SetPrintData(*m_PrintData);
 523     wxPageSetupDialog pageSetupDialog(m_Frame, m_PageSetupData);
 524
 525     if (pageSetupDialog.ShowModal() == wxID_OK) {
 526         (*m_PrintData) = pageSetupDialog.GetPageSetupData().GetPrintData();
 527         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 528     }
 529 }
 530
 531
 532
 533 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 534 {
 535     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 536         m_Headers[0] = header;
 537     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 538         m_Headers[1] = header;
 539 }
 540
 541
 542
 543 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 544 {
 545     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 546         m_Footers[0] = footer;
 547     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 548         m_Footers[1] = footer;
 549 }
 550
 551
 552
 553 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 554 {
 555     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 556
 557     p -> SetHeader(m_Headers[0], wxPAGE_EVEN);
 558     p -> SetHeader(m_Headers[1], wxPAGE_ODD);
 559     p -> SetFooter(m_Footers[0], wxPAGE_EVEN);
 560     p -> SetFooter(m_Footers[1], wxPAGE_ODD);
 561
 562     p -> SetMargins(m_PageSetupData -> GetMarginTopLeft().y,
 563                     m_PageSetupData -> GetMarginBottomRight().y,
 564                     m_PageSetupData -> GetMarginTopLeft().x,
 565                     m_PageSetupData -> GetMarginBottomRight().x);
 566
 567     return p;
 568 }
 569
 570
 571
 572 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE