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 && wxUSE_STREAMS
  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     {
 106         m_DC->SetBrush(*wxWHITE_BRUSH);
 107
 108         m_DC->SetClippingRegion(x, y, m_Width, hght);
 109         m_Cells->Draw(*m_DC,
 110                         x, (y - from),
 111                         y, pbreak + (y /*- from*/));
 112         m_DC->DestroyClippingRegion();
 113     }
 114
 115     if (pbreak < m_Cells->GetHeight()) return pbreak;
 116     else return GetTotalHeight();
 117 }
 118
 119
 120
 121 int wxHtmlDCRenderer::GetTotalHeight()
 122 {
 123     if (m_Cells) return m_Cells->GetHeight();
 124     else return 0;
 125 }
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142 //--------------------------------------------------------------------------------
 143 // wxHtmlPrintout
 144 //--------------------------------------------------------------------------------
 145
 146
 147
 148 wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
 149 {
 150     m_Renderer = new wxHtmlDCRenderer;
 151     m_RendererHdr = new wxHtmlDCRenderer;
 152     m_NumPages = wxHTML_PRINT_MAX_PAGES;
 153     m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = TRUE;
 154     m_Headers[0] = m_Headers[1] = wxEmptyString;
 155     m_Footers[0] = m_Footers[1] = wxEmptyString;
 156     m_HeaderHeight = m_FooterHeight = 0;
 157     SetMargins(); // to default values
 158 }
 159
 160
 161
 162 wxHtmlPrintout::~wxHtmlPrintout()
 163 {
 164     delete m_Renderer;
 165     delete m_RendererHdr;
 166 }
 167
 168
 169
 170 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 171 {
 172     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 173     float ppmm_h, ppmm_v;
 174
 175     if (!wxPrintout::OnBeginDocument(startPage, endPage)) return FALSE;
 176
 177     GetPageSizePixels(&pageWidth, &pageHeight);
 178     GetPageSizeMM(&mm_w, &mm_h);
 179     ppmm_h = (float)pageWidth / mm_w;
 180     ppmm_v = (float)pageHeight / mm_h;
 181
 182     int ppiPrinterX, ppiPrinterY;
 183     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 184     int ppiScreenX, ppiScreenY;
 185     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 186
 187     wxDisplaySize(&scr_w, &scr_h);
 188     GetDC()->GetSize(&dc_w, &dc_h);
 189
 190     GetDC()->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
 191
 192     /* prepare headers/footers renderer: */
 193
 194     m_RendererHdr->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 195     m_RendererHdr->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 196                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom)));
 197     if (m_Headers[0] != wxEmptyString)
 198     {
 199         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[0], 1));
 200         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 201     }
 202     else if (m_Headers[1] != wxEmptyString)
 203     {
 204         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[1], 1));
 205         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 206     }
 207     if (m_Footers[0] != wxEmptyString)
 208     {
 209         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[0], 1));
 210         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 211     }
 212     else if (m_Footers[1] != wxEmptyString)
 213     {
 214         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[1], 1));
 215         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 216     }
 217
 218     /* prepare main renderer: */
 219     m_Renderer->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 220     m_Renderer->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 221                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom) -
 222                           m_FooterHeight - m_HeaderHeight -
 223                           ((m_HeaderHeight == 0) ? 0 : m_MarginSpace * ppmm_v) -
 224                           ((m_FooterHeight == 0) ? 0 : m_MarginSpace * ppmm_v)
 225                           ));
 226     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
 227     CountPages();
 228     return TRUE;
 229 }
 230
 231
 232 bool wxHtmlPrintout::OnPrintPage(int page)
 233 {
 234     wxDC *dc = GetDC();
 235     if (dc)
 236     {
 237         if (HasPage(page))
 238             RenderPage(dc, page);
 239         return TRUE;
 240     }
 241     else return FALSE;
 242 }
 243
 244
 245 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 246 {
 247     *minPage = 1;
 248     *maxPage = wxHTML_PRINT_MAX_PAGES;
 249     *selPageFrom = 1;
 250     *selPageTo = wxHTML_PRINT_MAX_PAGES;
 251 }
 252
 253
 254
 255 bool wxHtmlPrintout::HasPage(int pageNum)
 256 {
 257     return (pageNum >= 1 && pageNum <= m_NumPages);
 258 }
 259
 260
 261
 262 void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
 263 {
 264     m_Document = html;
 265     m_BasePath = basepath;
 266     m_BasePathIsDir = isdir;
 267 }
 268
 269
 270
 271 void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 272 {
 273     wxFileSystem fs;
 274     wxFSFile *ff = fs.OpenFile(htmlfile);
 275
 276     if (ff == NULL)
 277     {
 278         wxLogError(htmlfile + _(": file does not exist!"));
 279         return;
 280     }
 281
 282     wxInputStream *st = ff->GetStream();
 283     char *t = new char[st->GetSize() + 1];
 284     st->Read(t, st->GetSize());
 285     t[st->GetSize()] = 0;
 286
 287     wxString doc = wxString(t);
 288     delete t;
 289     delete ff;
 290
 291     SetHtmlText(doc, htmlfile, FALSE);
 292 }
 293
 294
 295
 296 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 297 {
 298     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 299         m_Headers[0] = header;
 300     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 301         m_Headers[1] = header;
 302 }
 303
 304
 305
 306 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 307 {
 308     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 309         m_Footers[0] = footer;
 310     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 311         m_Footers[1] = footer;
 312 }
 313
 314
 315
 316 void wxHtmlPrintout::CountPages()
 317 {
 318     wxBusyCursor wait;
 319     int pageWidth, pageHeight, mm_w, mm_h;
 320     float ppmm_h, ppmm_v;
 321
 322     GetPageSizePixels(&pageWidth, &pageHeight);
 323     GetPageSizeMM(&mm_w, &mm_h);
 324     ppmm_h = (float)pageWidth / mm_w;
 325     ppmm_v = (float)pageHeight / mm_h;
 326
 327     int pos = 0;
 328
 329     m_NumPages = 0;
 330
 331     m_PageBreaks[0] = 0;
 332     do
 333     {
 334         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),
 335                                    (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 336                                    pos, TRUE);
 337         m_PageBreaks[++m_NumPages] = pos;
 338     } while (pos < m_Renderer->GetTotalHeight());
 339 }
 340
 341
 342
 343 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 344 {
 345     wxBusyCursor wait;
 346
 347     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 348     float ppmm_h, ppmm_v;
 349
 350     GetPageSizePixels(&pageWidth, &pageHeight);
 351     GetPageSizeMM(&mm_w, &mm_h);
 352     ppmm_h = (float)pageWidth / mm_w;
 353     ppmm_v = (float)pageHeight / mm_h;
 354     wxDisplaySize(&scr_w, &scr_h);
 355     dc->GetSize(&dc_w, &dc_h);
 356
 357     int ppiPrinterX, ppiPrinterY;
 358     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 359     int ppiScreenX, ppiScreenY;
 360     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 361
 362     dc->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
 363
 364     m_Renderer->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 365
 366     dc->SetBackgroundMode(wxTRANSPARENT);
 367
 368     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 369                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 370                          m_PageBreaks[page-1]);
 371
 372     m_RendererHdr->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 373     if (m_Headers[page % 2] != wxEmptyString)
 374     {
 375         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 376         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop));
 377     }
 378     if (m_Footers[page % 2] != wxEmptyString)
 379     {
 380         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 381         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight));
 382     }
 383 }
 384
 385
 386
 387 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 388 {
 389     wxString r = instr;
 390     wxString num;
 391
 392     num.Printf(wxT("%i"), page);
 393     r.Replace(wxT("@PAGENUM@"), num);
 394
 395     num.Printf(wxT("%i"), m_NumPages);
 396     r.Replace(wxT("@PAGESCNT@"), num);
 397
 398     return r;
 399 }
 400
 401
 402
 403 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 404 {
 405     m_MarginTop = top;
 406     m_MarginBottom = bottom;
 407     m_MarginLeft = left;
 408     m_MarginRight = right;
 409     m_MarginSpace = spaces;
 410 }
 411
 412
 413
 414
 415
 416
 417 //--------------------------------------------------------------------------------
 418 // wxHtmlEasyPrinting
 419 //--------------------------------------------------------------------------------
 420
 421
 422 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxFrame *parent_frame)
 423 {
 424     m_Frame = parent_frame;
 425     m_Name = name;
 426     m_PrintData = new wxPrintData;
 427 #if (defined __WXGTK__) || (defined __WXMOTIF__)
 428     (*m_PrintData) = (*wxThePrintSetupData);
 429 #endif
 430     m_PageSetupData = new wxPageSetupDialogData;
 431     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 432
 433     m_PageSetupData->EnableMargins(TRUE);
 434     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
 435     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 436 }
 437
 438
 439
 440 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 441 {
 442     delete m_PrintData;
 443     delete m_PageSetupData;
 444 }
 445
 446
 447
 448 bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 449 {
 450     wxHtmlPrintout *p1 = CreatePrintout();
 451     p1->SetHtmlFile(htmlfile);
 452     wxHtmlPrintout *p2 = CreatePrintout();
 453     p2->SetHtmlFile(htmlfile);
 454     return DoPreview(p1, p2);
 455 }
 456
 457
 458
 459 bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 460 {
 461     wxHtmlPrintout *p1 = CreatePrintout();
 462     p1->SetHtmlText(htmltext, basepath, TRUE);
 463     wxHtmlPrintout *p2 = CreatePrintout();
 464     p2->SetHtmlText(htmltext, basepath, TRUE);
 465     return DoPreview(p1, p2);
 466 }
 467
 468
 469
 470 bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 471 {
 472     wxHtmlPrintout *p = CreatePrintout();
 473     p->SetHtmlFile(htmlfile);
 474     bool ret = DoPrint(p);
 475     delete p;
 476     return ret;
 477 }
 478
 479
 480
 481 bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 482 {
 483     wxHtmlPrintout *p = CreatePrintout();
 484     p->SetHtmlText(htmltext, basepath, TRUE);
 485     bool ret = DoPrint(p);
 486     delete p;
 487     return ret;
 488 }
 489
 490
 491
 492 bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 493 {
 494     // Pass two printout objects: for preview, and possible printing.
 495     wxPrintDialogData printDialogData(*m_PrintData);
 496     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 497     if (!preview->Ok())
 498     {
 499         delete preview;
 500         return FALSE;
 501     }
 502
 503     wxPreviewFrame *frame = new wxPreviewFrame(preview, m_Frame,
 504                                                m_Name + _(" Preview"),
 505                                                wxPoint(100, 100), wxSize(650, 500));
 506     frame->Centre(wxBOTH);
 507     frame->Initialize();
 508     frame->Show(TRUE);
 509     return TRUE;
 510 }
 511
 512
 513
 514 bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 515 {
 516     wxPrintDialogData printDialogData(*m_PrintData);
 517     wxPrinter printer(&printDialogData);
 518
 519     if (!printer.Print(m_Frame, printout, TRUE))
 520     {
 521         return FALSE;
 522     }
 523
 524     (*m_PrintData) = printer.GetPrintDialogData().GetPrintData();
 525     return TRUE;
 526 }
 527
 528
 529
 530 void wxHtmlEasyPrinting::PrinterSetup()
 531 {
 532     wxPrintDialogData printDialogData(*m_PrintData);
 533     wxPrintDialog printerDialog(m_Frame, &printDialogData);
 534
 535     printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
 536
 537     if (printerDialog.ShowModal() == wxID_OK)
 538         (*m_PrintData) = printerDialog.GetPrintDialogData().GetPrintData();
 539 }
 540
 541
 542
 543 void wxHtmlEasyPrinting::PageSetup()
 544 {
 545     m_PageSetupData->SetPrintData(*m_PrintData);
 546     wxPageSetupDialog pageSetupDialog(m_Frame, m_PageSetupData);
 547
 548     if (pageSetupDialog.ShowModal() == wxID_OK)
 549     {
 550         (*m_PrintData) = pageSetupDialog.GetPageSetupData().GetPrintData();
 551         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 552     }
 553 }
 554
 555
 556
 557 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 558 {
 559     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 560         m_Headers[0] = header;
 561     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 562         m_Headers[1] = header;
 563 }
 564
 565
 566
 567 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 568 {
 569     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 570         m_Footers[0] = footer;
 571     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 572         m_Footers[1] = footer;
 573 }
 574
 575
 576
 577 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 578 {
 579     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 580
 581     p->SetHeader(m_Headers[0], wxPAGE_EVEN);
 582     p->SetHeader(m_Headers[1], wxPAGE_ODD);
 583     p->SetFooter(m_Footers[0], wxPAGE_EVEN);
 584     p->SetFooter(m_Footers[1], wxPAGE_ODD);
 585
 586     p->SetMargins(m_PageSetupData->GetMarginTopLeft().y,
 587                     m_PageSetupData->GetMarginBottomRight().y,
 588                     m_PageSetupData->GetMarginTopLeft().x,
 589                     m_PageSetupData->GetMarginBottomRight().x);
 590
 591     return p;
 592 }
 593
 594
 595
 596 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE