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((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginTop)),
 195                           (int) (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((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginTop)),
 216                           (int) (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
 270     if (ff == NULL)
 271     {
 272         wxLogError(htmlfile + _(": file does not exist!"));
 273         return;
 274     }
 275
 276     wxInputStream *st = ff -> GetStream();
 277     char *t = new char[st -> GetSize() + 1];
 278     st -> Read(t, st -> GetSize());
 279     t[st -> GetSize()] = 0;
 280
 281     wxString doc = wxString(t);
 282     delete t;
 283     delete ff;
 284
 285     SetHtmlText(doc, htmlfile, FALSE);
 286 }
 287
 288
 289
 290 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 291 {
 292     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 293         m_Headers[0] = header;
 294     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 295         m_Headers[1] = header;
 296 }
 297
 298
 299
 300 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 301 {
 302     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 303         m_Footers[0] = footer;
 304     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 305         m_Footers[1] = footer;
 306 }
 307
 308
 309
 310 void wxHtmlPrintout::CountPages()
 311 {
 312     wxBusyCursor wait;
 313     int pageWidth, pageHeight, mm_w, mm_h;
 314     float ppmm_h, ppmm_v;
 315
 316     GetPageSizePixels(&pageWidth, &pageHeight);
 317     GetPageSizeMM(&mm_w, &mm_h);
 318     ppmm_h = (float)pageWidth / mm_w;
 319     ppmm_v = (float)pageHeight / mm_h;
 320
 321     int pos = 0;
 322
 323     m_NumPages = 0;
 324
 325     m_PageBreaks[0] = 0;
 326     do {
 327         pos = m_Renderer -> Render((int)( ppmm_h * m_MarginLeft),
 328                                    (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 329                                    pos, TRUE);
 330         m_PageBreaks[++m_NumPages] = pos;
 331     } while (pos < m_Renderer -> GetTotalHeight());
 332 }
 333
 334
 335
 336 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 337 {
 338     wxBusyCursor wait;
 339
 340     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 341     float ppmm_h, ppmm_v;
 342
 343     GetPageSizePixels(&pageWidth, &pageHeight);
 344     GetPageSizeMM(&mm_w, &mm_h);
 345     ppmm_h = (float)pageWidth / mm_w;
 346     ppmm_v = (float)pageHeight / mm_h;
 347     wxDisplaySize(&scr_w, &scr_h);
 348     dc -> GetSize(&dc_w, &dc_h);
 349
 350     int ppiPrinterX, ppiPrinterY;
 351     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 352     int ppiScreenX, ppiScreenY;
 353     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 354
 355     dc -> SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
 356
 357     m_Renderer -> SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 358
 359     dc -> SetBackgroundMode(wxTRANSPARENT);
 360
 361     m_Renderer -> Render((int) (ppmm_h * m_MarginLeft),
 362                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 363                          m_PageBreaks[page-1]);
 364
 365     m_RendererHdr -> SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 366     if (m_Headers[page % 2] != wxEmptyString) {
 367         m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 368         m_RendererHdr -> Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop));
 369     }
 370     if (m_Footers[page % 2] != wxEmptyString) {
 371         m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 372         m_RendererHdr -> Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight));
 373     }
 374 }
 375
 376
 377
 378 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 379 {
 380     wxString r = instr;
 381     wxString num;
 382
 383     num.Printf(wxT("%i"), page);
 384     r.Replace(wxT("@PAGENUM@"), num);
 385
 386     num.Printf(wxT("%i"), m_NumPages);
 387     r.Replace(wxT("@PAGESCNT@"), num);
 388
 389     return r;
 390 }
 391
 392
 393
 394 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 395 {
 396     m_MarginTop = top;
 397     m_MarginBottom = bottom;
 398     m_MarginLeft = left;
 399     m_MarginRight = right;
 400     m_MarginSpace = spaces;
 401 }
 402
 403
 404
 405
 406
 407
 408 //--------------------------------------------------------------------------------
 409 // wxHtmlEasyPrinting
 410 //--------------------------------------------------------------------------------
 411
 412
 413 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxFrame *parent_frame)
 414 {
 415     m_Frame = parent_frame;
 416     m_Name = name;
 417     m_PrintData = new wxPrintData;
 418 #if (defined __WXGTK__) || (defined __WXMOTIF__)
 419     (*m_PrintData) = (*wxThePrintSetupData);
 420 #endif
 421     m_PageSetupData = new wxPageSetupDialogData;
 422     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 423
 424     m_PageSetupData -> EnableMargins(TRUE);
 425     m_PageSetupData -> SetMarginTopLeft(wxPoint(25, 25));
 426     m_PageSetupData -> SetMarginBottomRight(wxPoint(25, 25));
 427 }
 428
 429
 430
 431 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 432 {
 433     delete m_PrintData;
 434     delete m_PageSetupData;
 435 }
 436
 437
 438
 439 void wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 440 {
 441     wxHtmlPrintout *p1 = CreatePrintout();
 442     p1 -> SetHtmlFile(htmlfile);
 443     wxHtmlPrintout *p2 = CreatePrintout();
 444     p2 -> SetHtmlFile(htmlfile);
 445     DoPreview(p1, p2);
 446 }
 447
 448
 449
 450 void wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 451 {
 452     wxHtmlPrintout *p1 = CreatePrintout();
 453     p1 -> SetHtmlText(htmltext, basepath, TRUE);
 454     wxHtmlPrintout *p2 = CreatePrintout();
 455     p2 -> SetHtmlText(htmltext, basepath, TRUE);
 456     DoPreview(p1, p2);
 457 }
 458
 459
 460
 461 void wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 462 {
 463     wxHtmlPrintout *p = CreatePrintout();
 464     p -> SetHtmlFile(htmlfile);
 465     DoPrint(p);
 466 }
 467
 468
 469
 470 void wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 471 {
 472     wxHtmlPrintout *p = CreatePrintout();
 473     p -> SetHtmlText(htmltext, basepath, TRUE);
 474     DoPrint(p);
 475 }
 476
 477
 478
 479 void wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 480 {
 481     // Pass two printout objects: for preview, and possible printing.
 482     wxPrintDialogData printDialogData(*m_PrintData);
 483     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 484     if (!preview -> Ok()) {
 485         delete preview;
 486         wxMessageBox(_("There was a problem previewing.\nPerhaps your current printer is not set correctly?"), _("Previewing"), wxOK);
 487     }
 488
 489     else {
 490         wxPreviewFrame *frame = new wxPreviewFrame(preview, m_Frame,
 491                                                    m_Name + _(" Preview"),
 492                                                    wxPoint(100, 100), wxSize(650, 500));
 493         frame -> Centre(wxBOTH);
 494         frame -> Initialize();
 495         frame -> Show(TRUE);
 496     }
 497 }
 498
 499
 500
 501 void wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 502 {
 503     wxPrintDialogData printDialogData(*m_PrintData);
 504     wxPrinter printer(&printDialogData);
 505
 506     if (!printer.Print(m_Frame, printout, TRUE))
 507         wxMessageBox(_("There was a problem printing.\nPerhaps your current printer is not set correctly?"), _("Printing"), wxOK);
 508     else
 509         (*m_PrintData) = printer.GetPrintDialogData().GetPrintData();
 510 }
 511
 512
 513
 514 void wxHtmlEasyPrinting::PrinterSetup()
 515 {
 516     wxPrintDialogData printDialogData(*m_PrintData);
 517     wxPrintDialog printerDialog(m_Frame, &printDialogData);
 518
 519     printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
 520
 521     if (printerDialog.ShowModal() == wxID_OK)
 522         (*m_PrintData) = printerDialog.GetPrintDialogData().GetPrintData();
 523 }
 524
 525
 526
 527 void wxHtmlEasyPrinting::PageSetup()
 528 {
 529     m_PageSetupData -> SetPrintData(*m_PrintData);
 530     wxPageSetupDialog pageSetupDialog(m_Frame, m_PageSetupData);
 531
 532     if (pageSetupDialog.ShowModal() == wxID_OK) {
 533         (*m_PrintData) = pageSetupDialog.GetPageSetupData().GetPrintData();
 534         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 535     }
 536 }
 537
 538
 539
 540 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 541 {
 542     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 543         m_Headers[0] = header;
 544     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 545         m_Headers[1] = header;
 546 }
 547
 548
 549
 550 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 551 {
 552     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 553         m_Footers[0] = footer;
 554     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 555         m_Footers[1] = footer;
 556 }
 557
 558
 559
 560 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 561 {
 562     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 563
 564     p -> SetHeader(m_Headers[0], wxPAGE_EVEN);
 565     p -> SetHeader(m_Headers[1], wxPAGE_ODD);
 566     p -> SetFooter(m_Footers[0], wxPAGE_EVEN);
 567     p -> SetFooter(m_Footers[1], wxPAGE_ODD);
 568
 569     p -> SetMargins(m_PageSetupData -> GetMarginTopLeft().y,
 570                     m_PageSetupData -> GetMarginBottomRight().y,
 571                     m_PageSetupData -> GetMarginTopLeft().x,
 572                     m_PageSetupData -> GetMarginBottomRight().x);
 573
 574     return p;
 575 }
 576
 577
 578
 579 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE