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/log.h"
  27     #include "wx/intl.h"
  28     #include "wx/dc.h"
  29 #endif
  30
  31 #if wxUSE_HTML && wxUSE_PRINTING_ARCHITECTURE && wxUSE_STREAMS
  32
  33 #include "wx/print.h"
  34 #include "wx/printdlg.h"
  35 #include "wx/html/htmprint.h"
  36 #include "wx/wxhtml.h"
  37 #include "wx/wfstream.h"
  38
  39
  40 //--------------------------------------------------------------------------------
  41 // wxHtmlDCRenderer
  42 //--------------------------------------------------------------------------------
  43
  44
  45 wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
  46 {
  47     m_DC = NULL;
  48     m_Width = m_Height = 0;
  49     m_Cells = NULL;
  50     m_Parser = new wxHtmlWinParser(NULL);
  51     m_FS = new wxFileSystem();
  52     m_Parser->SetFS(m_FS);
  53 }
  54
  55
  56
  57 wxHtmlDCRenderer::~wxHtmlDCRenderer()
  58 {
  59     if (m_Cells) delete m_Cells;
  60     if (m_Parser) delete m_Parser;
  61     if (m_FS) delete m_FS;
  62 }
  63
  64
  65
  66 void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale)
  67 {
  68     m_DC = dc;
  69     m_Parser->SetDC(m_DC, pixel_scale);
  70 }
  71
  72
  73
  74 void wxHtmlDCRenderer::SetSize(int width, int height)
  75 {
  76     m_Width = width;
  77     m_Height = height;
  78 }
  79
  80
  81
  82 void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
  83 {
  84     if (m_DC == NULL) return;
  85
  86     if (m_Cells != NULL) delete m_Cells;
  87
  88     m_FS->ChangePathTo(basepath, isdir);
  89     m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html);
  90     m_Cells->SetIndent(0, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
  91     m_Cells->Layout(m_Width);
  92 }
  93
  94
  95
  96 int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render)
  97 {
  98     int pbreak, hght;
  99
 100     if (m_Cells == NULL || m_DC == NULL) return 0;
 101
 102     pbreak = (int)(from + m_Height);
 103     while (m_Cells->AdjustPagebreak(&pbreak)) {}
 104     hght = pbreak - from;
 105
 106     if (!dont_render)
 107     {
 108         m_DC->SetBrush(*wxWHITE_BRUSH);
 109
 110         m_DC->SetClippingRegion(x, y, m_Width, hght);
 111         m_Cells->Draw(*m_DC,
 112                         x, (y - from),
 113                         y, pbreak + (y /*- from*/));
 114         m_DC->DestroyClippingRegion();
 115     }
 116
 117     if (pbreak < m_Cells->GetHeight()) return pbreak;
 118     else return GetTotalHeight();
 119 }
 120
 121
 122
 123 int wxHtmlDCRenderer::GetTotalHeight()
 124 {
 125     if (m_Cells) return m_Cells->GetHeight();
 126     else return 0;
 127 }
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144 //--------------------------------------------------------------------------------
 145 // wxHtmlPrintout
 146 //--------------------------------------------------------------------------------
 147
 148
 149
 150 wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
 151 {
 152     m_Renderer = new wxHtmlDCRenderer;
 153     m_RendererHdr = new wxHtmlDCRenderer;
 154     m_NumPages = wxHTML_PRINT_MAX_PAGES;
 155     m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = TRUE;
 156     m_Headers[0] = m_Headers[1] = wxEmptyString;
 157     m_Footers[0] = m_Footers[1] = wxEmptyString;
 158     m_HeaderHeight = m_FooterHeight = 0;
 159     SetMargins(); // to default values
 160 }
 161
 162
 163
 164 wxHtmlPrintout::~wxHtmlPrintout()
 165 {
 166     delete m_Renderer;
 167     delete m_RendererHdr;
 168 }
 169
 170
 171
 172 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 173 {
 174     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 175     float ppmm_h, ppmm_v;
 176
 177     if (!wxPrintout::OnBeginDocument(startPage, endPage)) return FALSE;
 178
 179     GetPageSizePixels(&pageWidth, &pageHeight);
 180     GetPageSizeMM(&mm_w, &mm_h);
 181     ppmm_h = (float)pageWidth / mm_w;
 182     ppmm_v = (float)pageHeight / mm_h;
 183
 184     int ppiPrinterX, ppiPrinterY;
 185     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 186     int ppiScreenX, ppiScreenY;
 187     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 188
 189     wxDisplaySize(&scr_w, &scr_h);
 190     GetDC()->GetSize(&dc_w, &dc_h);
 191
 192     GetDC()->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
 193
 194     /* prepare headers/footers renderer: */
 195
 196     m_RendererHdr->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 197     m_RendererHdr->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 198                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom)));
 199     if (m_Headers[0] != wxEmptyString)
 200     {
 201         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[0], 1));
 202         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 203     }
 204     else if (m_Headers[1] != wxEmptyString)
 205     {
 206         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[1], 1));
 207         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 208     }
 209     if (m_Footers[0] != wxEmptyString)
 210     {
 211         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[0], 1));
 212         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 213     }
 214     else if (m_Footers[1] != wxEmptyString)
 215     {
 216         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[1], 1));
 217         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 218     }
 219
 220     /* prepare main renderer: */
 221     m_Renderer->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 222     m_Renderer->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 223                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom) -
 224                           m_FooterHeight - m_HeaderHeight -
 225                           ((m_HeaderHeight == 0) ? 0 : m_MarginSpace * ppmm_v) -
 226                           ((m_FooterHeight == 0) ? 0 : m_MarginSpace * ppmm_v)
 227                           ));
 228     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
 229     CountPages();
 230     return TRUE;
 231 }
 232
 233
 234 bool wxHtmlPrintout::OnPrintPage(int page)
 235 {
 236     wxDC *dc = GetDC();
 237     if (dc)
 238     {
 239         if (HasPage(page))
 240             RenderPage(dc, page);
 241         return TRUE;
 242     }
 243     else return FALSE;
 244 }
 245
 246
 247 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 248 {
 249     *minPage = 1;
 250     *maxPage = wxHTML_PRINT_MAX_PAGES;
 251     *selPageFrom = 1;
 252     *selPageTo = wxHTML_PRINT_MAX_PAGES;
 253 }
 254
 255
 256
 257 bool wxHtmlPrintout::HasPage(int pageNum)
 258 {
 259     return (pageNum >= 1 && pageNum <= m_NumPages);
 260 }
 261
 262
 263
 264 void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
 265 {
 266     m_Document = html;
 267     m_BasePath = basepath;
 268     m_BasePathIsDir = isdir;
 269 }
 270
 271
 272
 273 void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 274 {
 275     wxFileSystem fs;
 276     wxFSFile *ff = fs.OpenFile(htmlfile);
 277
 278     if (ff == NULL)
 279     {
 280         wxLogError(htmlfile + _(": file does not exist!"));
 281         return;
 282     }
 283
 284     wxInputStream *st = ff->GetStream();
 285     char *t = new char[st->GetSize() + 1];
 286     st->Read(t, st->GetSize());
 287     t[st->GetSize()] = 0;
 288
 289     wxString doc = wxString(t);
 290     delete t;
 291     delete ff;
 292
 293     SetHtmlText(doc, htmlfile, FALSE);
 294 }
 295
 296
 297
 298 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 299 {
 300     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 301         m_Headers[0] = header;
 302     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 303         m_Headers[1] = header;
 304 }
 305
 306
 307
 308 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 309 {
 310     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 311         m_Footers[0] = footer;
 312     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 313         m_Footers[1] = footer;
 314 }
 315
 316
 317
 318 void wxHtmlPrintout::CountPages()
 319 {
 320     wxBusyCursor wait;
 321     int pageWidth, pageHeight, mm_w, mm_h;
 322     float ppmm_h, ppmm_v;
 323
 324     GetPageSizePixels(&pageWidth, &pageHeight);
 325     GetPageSizeMM(&mm_w, &mm_h);
 326     ppmm_h = (float)pageWidth / mm_w;
 327     ppmm_v = (float)pageHeight / mm_h;
 328
 329     int pos = 0;
 330
 331     m_NumPages = 0;
 332
 333     m_PageBreaks[0] = 0;
 334     do
 335     {
 336         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),
 337                                    (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 338                                    pos, TRUE);
 339         m_PageBreaks[++m_NumPages] = pos;
 340     } while (pos < m_Renderer->GetTotalHeight());
 341 }
 342
 343
 344
 345 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 346 {
 347     wxBusyCursor wait;
 348
 349     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 350     float ppmm_h, ppmm_v;
 351
 352     GetPageSizePixels(&pageWidth, &pageHeight);
 353     GetPageSizeMM(&mm_w, &mm_h);
 354     ppmm_h = (float)pageWidth / mm_w;
 355     ppmm_v = (float)pageHeight / mm_h;
 356     wxDisplaySize(&scr_w, &scr_h);
 357     dc->GetSize(&dc_w, &dc_h);
 358
 359     int ppiPrinterX, ppiPrinterY;
 360     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 361     int ppiScreenX, ppiScreenY;
 362     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 363
 364     dc->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
 365
 366     m_Renderer->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 367
 368     dc->SetBackgroundMode(wxTRANSPARENT);
 369
 370     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 371                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 372                          m_PageBreaks[page-1]);
 373
 374     m_RendererHdr->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 375     if (m_Headers[page % 2] != wxEmptyString)
 376     {
 377         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 378         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop));
 379     }
 380     if (m_Footers[page % 2] != wxEmptyString)
 381     {
 382         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 383         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight));
 384     }
 385 }
 386
 387
 388
 389 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 390 {
 391     wxString r = instr;
 392     wxString num;
 393
 394     num.Printf(wxT("%i"), page);
 395     r.Replace(wxT("@PAGENUM@"), num);
 396
 397     num.Printf(wxT("%i"), m_NumPages);
 398     r.Replace(wxT("@PAGESCNT@"), num);
 399
 400     return r;
 401 }
 402
 403
 404
 405 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 406 {
 407     m_MarginTop = top;
 408     m_MarginBottom = bottom;
 409     m_MarginLeft = left;
 410     m_MarginRight = right;
 411     m_MarginSpace = spaces;
 412 }
 413
 414
 415
 416
 417
 418
 419 //--------------------------------------------------------------------------------
 420 // wxHtmlEasyPrinting
 421 //--------------------------------------------------------------------------------
 422
 423
 424 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxFrame *parent_frame)
 425 {
 426     m_Frame = parent_frame;
 427     m_Name = name;
 428     m_PrintData = new wxPrintData;
 429 #if (defined __WXGTK__) || (defined __WXMOTIF__)
 430     (*m_PrintData) = (*wxThePrintSetupData);
 431 #endif
 432     m_PageSetupData = new wxPageSetupDialogData;
 433     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 434
 435     m_PageSetupData->EnableMargins(TRUE);
 436     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
 437     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 438 }
 439
 440
 441
 442 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 443 {
 444     delete m_PrintData;
 445     delete m_PageSetupData;
 446 }
 447
 448
 449
 450 bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 451 {
 452     wxHtmlPrintout *p1 = CreatePrintout();
 453     p1->SetHtmlFile(htmlfile);
 454     wxHtmlPrintout *p2 = CreatePrintout();
 455     p2->SetHtmlFile(htmlfile);
 456     return DoPreview(p1, p2);
 457 }
 458
 459
 460
 461 bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 462 {
 463     wxHtmlPrintout *p1 = CreatePrintout();
 464     p1->SetHtmlText(htmltext, basepath, TRUE);
 465     wxHtmlPrintout *p2 = CreatePrintout();
 466     p2->SetHtmlText(htmltext, basepath, TRUE);
 467     return DoPreview(p1, p2);
 468 }
 469
 470
 471
 472 bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 473 {
 474     wxHtmlPrintout *p = CreatePrintout();
 475     p->SetHtmlFile(htmlfile);
 476     bool ret = DoPrint(p);
 477     delete p;
 478     return ret;
 479 }
 480
 481
 482
 483 bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 484 {
 485     wxHtmlPrintout *p = CreatePrintout();
 486     p->SetHtmlText(htmltext, basepath, TRUE);
 487     bool ret = DoPrint(p);
 488     delete p;
 489     return ret;
 490 }
 491
 492
 493
 494 bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 495 {
 496     // Pass two printout objects: for preview, and possible printing.
 497     wxPrintDialogData printDialogData(*m_PrintData);
 498     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 499     if (!preview->Ok())
 500     {
 501         delete preview;
 502         return FALSE;
 503     }
 504
 505     wxPreviewFrame *frame = new wxPreviewFrame(preview, m_Frame,
 506                                                m_Name + _(" Preview"),
 507                                                wxPoint(100, 100), wxSize(650, 500));
 508     frame->Centre(wxBOTH);
 509     frame->Initialize();
 510     frame->Show(TRUE);
 511     return TRUE;
 512 }
 513
 514
 515
 516 bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 517 {
 518     wxPrintDialogData printDialogData(*m_PrintData);
 519     wxPrinter printer(&printDialogData);
 520
 521     if (!printer.Print(m_Frame, printout, TRUE))
 522     {
 523         return FALSE;
 524     }
 525
 526     (*m_PrintData) = printer.GetPrintDialogData().GetPrintData();
 527     return TRUE;
 528 }
 529
 530
 531
 532 void wxHtmlEasyPrinting::PrinterSetup()
 533 {
 534     wxPrintDialogData printDialogData(*m_PrintData);
 535     wxPrintDialog printerDialog(m_Frame, &printDialogData);
 536
 537     printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
 538
 539     if (printerDialog.ShowModal() == wxID_OK)
 540         (*m_PrintData) = printerDialog.GetPrintDialogData().GetPrintData();
 541 }
 542
 543
 544
 545 void wxHtmlEasyPrinting::PageSetup()
 546 {
 547     m_PageSetupData->SetPrintData(*m_PrintData);
 548     wxPageSetupDialog pageSetupDialog(m_Frame, m_PageSetupData);
 549
 550     if (pageSetupDialog.ShowModal() == wxID_OK)
 551     {
 552         (*m_PrintData) = pageSetupDialog.GetPageSetupData().GetPrintData();
 553         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 554     }
 555 }
 556
 557
 558
 559 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 560 {
 561     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 562         m_Headers[0] = header;
 563     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 564         m_Headers[1] = header;
 565 }
 566
 567
 568
 569 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 570 {
 571     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 572         m_Footers[0] = footer;
 573     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 574         m_Footers[1] = footer;
 575 }
 576
 577
 578
 579 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 580 {
 581     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 582
 583     p->SetHeader(m_Headers[0], wxPAGE_EVEN);
 584     p->SetHeader(m_Headers[1], wxPAGE_ODD);
 585     p->SetFooter(m_Footers[0], wxPAGE_EVEN);
 586     p->SetFooter(m_Footers[1], wxPAGE_ODD);
 587
 588     p->SetMargins(m_PageSetupData->GetMarginTopLeft().y,
 589                     m_PageSetupData->GetMarginBottomRight().y,
 590                     m_PageSetupData->GetMarginTopLeft().x,
 591                     m_PageSetupData->GetMarginBottomRight().x);
 592
 593     return p;
 594 }
 595
 596
 597
 598 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE