src/generic/printps.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        printps.cpp
   3 // Purpose:     Postscript print/preview framework
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "printps.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #include "wx/defs.h"
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/utils.h"
  27 #include "wx/dc.h"
  28 #include "wx/app.h"
  29 #include "wx/msgdlg.h"
  30 #include <wx/intl.h>
  31 #endif
  32
  33 #include "wx/generic/printps.h"
  34 #include "wx/dcprint.h"
  35 #include "wx/printdlg.h"
  36 #include "wx/generic/prntdlgg.h"
  37
  38 #include <stdlib.h>
  39
  40 #if !USE_SHARED_LIBRARY
  41 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptPrinter, wxPrinterBase)
  42 IMPLEMENT_CLASS(wxPostScriptPrintPreview, wxPrintPreviewBase)
  43 #endif
  44
  45 /*
  46  * Printer
  47  */
  48
  49 wxPostScriptPrinter::wxPostScriptPrinter(wxPrintData *data):
  50     wxPrinterBase(data)
  51 {
  52 }
  53
  54 wxPostScriptPrinter::~wxPostScriptPrinter(void)
  55 {
  56 }
  57
  58 bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
  59 {
  60   abortIt = FALSE;
  61   abortWindow = NULL;
  62
  63   if (!printout)
  64     return FALSE;
  65
  66   printout->SetIsPreview(FALSE);
  67   printout->OnPreparePrinting();
  68
  69   // Get some parameters from the printout, if defined
  70   int fromPage, toPage;
  71   int minPage, maxPage;
  72   printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage);
  73
  74   if (maxPage == 0)
  75     return FALSE;
  76
  77   printData.SetMinPage(minPage);
  78   printData.SetMaxPage(maxPage);
  79   if (fromPage != 0)
  80     printData.SetFromPage(fromPage);
  81   if (toPage != 0)
  82     printData.SetToPage(toPage);
  83
  84   if (minPage != 0)
  85   {
  86     printData.EnablePageNumbers(TRUE);
  87     if (printData.GetFromPage() < printData.GetMinPage())
  88       printData.SetFromPage(printData.GetMinPage());
  89     else if (printData.GetFromPage() > printData.GetMaxPage())
  90       printData.SetFromPage(printData.GetMaxPage());
  91     if (printData.GetToPage() > printData.GetMaxPage())
  92       printData.SetToPage(printData.GetMaxPage());
  93     else if (printData.GetToPage() < printData.GetMinPage())
  94       printData.SetToPage(printData.GetMinPage());
  95   }
  96   else
  97     printData.EnablePageNumbers(FALSE);
  98
  99   // Create a suitable device context
 100   wxDC *dc = NULL;
 101   if (prompt)
 102   {
 103      wxGenericPrintDialog dialog(parent, & printData);
 104      if (dialog.ShowModal() == wxID_OK)
 105      {
 106        dc = dialog.GetPrintDC();
 107        printData = dialog.GetPrintData();
 108      }
 109   }
 110   else
 111   {
 112      dc = new wxPostScriptDC(wxThePrintSetupData->GetPrinterFile(), FALSE, NULL);
 113   }
 114
 115   // May have pressed cancel.
 116   if (!dc || !dc->Ok())
 117   {
 118     if (dc) delete dc;
 119     return FALSE;
 120   }
 121
 122   int logPPIScreenX = 0;
 123   int logPPIScreenY = 0;
 124   int logPPIPrinterX = 0;
 125   int logPPIPrinterY = 0;
 126
 127   // Correct values for X/PostScript?
 128   logPPIScreenX = 100;
 129   logPPIScreenY = 100;
 130   logPPIPrinterX = 100;
 131   logPPIPrinterY = 100;
 132
 133   printout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
 134   printout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
 135
 136   // Set printout parameters
 137   printout->SetDC(dc);
 138
 139   int w, h;
 140   long ww, hh;
 141   dc->GetSize(&w, &h);
 142   printout->SetPageSizePixels((int)w, (int)h);
 143   dc->GetSizeMM(&ww, &hh);
 144   printout->SetPageSizeMM((int)ww, (int)hh);
 145
 146   // Create an abort window
 147   wxBeginBusyCursor();
 148
 149   printout->OnBeginPrinting();
 150
 151   bool keepGoing = TRUE;
 152
 153   int copyCount;
 154   for (copyCount = 1; copyCount <= printData.GetNoCopies(); copyCount ++)
 155   {
 156     if (!printout->OnBeginDocument(printData.GetFromPage(), printData.GetToPage()))
 157     {
 158       wxEndBusyCursor();
 159       wxMessageBox(_("Could not start printing."), _("Print Error"), wxOK, parent);
 160       break;
 161     }
 162     if (abortIt)
 163       break;
 164
 165     int pn;
 166     for (pn = printData.GetFromPage(); keepGoing && (pn <= printData.GetToPage()) && printout->HasPage(pn);
 167          pn++)
 168     {
 169       if (abortIt)
 170       {
 171         keepGoing = FALSE;
 172         break;
 173       }
 174       else
 175       {
 176         dc->StartPage();
 177         printout->OnPrintPage(pn);
 178         dc->EndPage();
 179       }
 180     }
 181     printout->OnEndDocument();
 182   }
 183
 184   printout->OnEndPrinting();
 185
 186   wxEndBusyCursor();
 187
 188   delete dc;
 189
 190   return TRUE;
 191 }
 192
 193 bool wxPostScriptPrinter::PrintDialog(wxWindow *parent)
 194 {
 195     wxGenericPrintDialog dialog(parent, & printData);
 196     return (dialog.ShowModal() == wxID_OK);
 197 }
 198
 199 bool wxPostScriptPrinter::Setup(wxWindow *parent)
 200 {
 201     wxGenericPrintDialog dialog(parent, & printData);
 202     dialog.GetPrintData().SetSetupDialog(TRUE);
 203     return (dialog.ShowModal() == wxID_OK);
 204 }
 205
 206 /*
 207  * Print preview
 208  */
 209
 210 wxPostScriptPrintPreview::wxPostScriptPrintPreview(wxPrintout *printout, wxPrintout *printoutForPrinting, wxPrintData *data):
 211   wxPrintPreviewBase(printout, printoutForPrinting, data)
 212 {
 213   // Have to call it here since base constructor can't call it
 214   DetermineScaling();
 215 }
 216
 217 wxPostScriptPrintPreview::~wxPostScriptPrintPreview(void)
 218 {
 219 }
 220
 221 bool wxPostScriptPrintPreview::Print(bool interactive)
 222 {
 223   if (!printPrintout)
 224     return FALSE;
 225   wxPostScriptPrinter printer(&printData);
 226   return printer.Print(previewFrame, printPrintout, interactive);
 227 }
 228
 229 void wxPostScriptPrintPreview::DetermineScaling(void)
 230 {
 231     const char *paperType = wxThePrintSetupData->GetPaperName();
 232     if (!paperType)
 233       paperType = _("A4 210 x 297 mm");
 234
 235     wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(paperType);
 236     if (!paper)
 237       paper = wxThePrintPaperDatabase->FindPaperType(_("A4 210 x 297 mm"));
 238     if (paper)
 239     {
 240       previewPrintout->SetPPIScreen(100, 100);
 241       previewPrintout->SetPPIPrinter(100, 100);
 242
 243       // If in landscape mode, we need to swap the width and height.
 244       if ( printData.GetOrientation() == wxLANDSCAPE )
 245       {
 246         pageWidth = paper->heightPixels;
 247         pageHeight = paper->widthPixels;
 248         previewPrintout->SetPageSizeMM(paper->heightMM, paper->widthMM);
 249         previewPrintout->SetPageSizePixels(paper->heightPixels, paper->widthPixels);
 250       }
 251       else
 252       {
 253         pageWidth = paper->widthPixels;
 254         pageHeight = paper->heightPixels;
 255         previewPrintout->SetPageSizeMM(paper->widthMM, paper->heightMM);
 256         previewPrintout->SetPageSizePixels(paper->widthPixels, paper->heightPixels);
 257       }
 258
 259       // At 100%, the page should look about page-size on the screen.
 260       previewScale = (float)0.8;
 261 //      previewScale = (float)((float)screenWidth/(float)printerWidth);
 262 //      previewScale = previewScale * (float)((float)screenXRes/(float)printerYRes);
 263     }
 264 }
 265