samples/printing/printing.cpp

   1 /*
   2  * File:        printing.cc
   3  * Purpose:     Printing demo for wxWindows class library
   4  * Author:      Julian Smart
   5  * Created:     1995
   6  * Updated:
   7  * Copyright:   (c) 1995, AIAI, University of Edinburgh
   8  */
   9
  10 /* static const char sccsid[] = "%W% %G%"; */
  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 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/wx.h"
  25 #endif
  26
  27 #if !wxUSE_PRINTING_ARCHITECTURE
  28 #error You must set wxUSE_PRINTING_ARCHITECTURE to 1 in wx_setup.h to compile this demo.
  29 #endif
  30
  31 // Set this to 1 if you want to test PostScript printing under MSW.
  32 // However, you'll also need to edit src/msw/makefile.nt.
  33 #define wxTEST_POSTSCRIPT_IN_MSW 0
  34
  35 #include <ctype.h>
  36 #include "wx/metafile.h"
  37 #include "wx/print.h"
  38 #include "wx/printdlg.h"
  39
  40 #include "wx/accel.h"
  41
  42 #if wxTEST_POSTSCRIPT_IN_MSW
  43 #include "wx/generic/printps.h"
  44 #include "wx/generic/prntdlgg.h"
  45 #endif
  46
  47 #include "printing.h"
  48
  49 #ifndef __WXMSW__
  50 #include "mondrian.xpm"
  51 #endif
  52
  53 // Declare a frame
  54 MyFrame   *frame = (MyFrame *) NULL;
  55 int orientation = wxPORTRAIT;
  56
  57 // Main proc
  58 IMPLEMENT_APP(MyApp)
  59
  60 // Writes a header on a page. Margin units are in millimetres.
  61 bool WritePageHeader(wxPrintout *printout, wxDC *dc, char *text, float mmToLogical);
  62
  63 MyApp::MyApp()
  64 {
  65 }
  66
  67 // The `main program' equivalent, creating the windows and returning the
  68 // main frame
  69 bool MyApp::OnInit(void)
  70 {
  71   m_testFont = new wxFont(10, wxSWISS, wxNORMAL, wxNORMAL);
  72
  73   // Create the main frame window
  74   frame = new MyFrame((wxFrame *) NULL, (char *) "wxWindows Printing Demo", wxPoint(0, 0), wxSize(400, 400));
  75
  76   // Give it a status line
  77   frame->CreateStatusBar(2);
  78
  79   // Load icon and bitmap
  80   frame->SetIcon( wxICON( mondrian) );
  81
  82   // Make a menubar
  83   wxMenu *file_menu = new wxMenu;
  84
  85   file_menu->Append(WXPRINT_PRINT, "&Print...",              "Print");
  86   file_menu->Append(WXPRINT_PRINT_SETUP, "Print &Setup...",              "Setup printer properties");
  87   file_menu->Append(WXPRINT_PAGE_SETUP, "Page Set&up...",              "Page setup");
  88   file_menu->Append(WXPRINT_PREVIEW, "Print Pre&view",              "Preview");
  89
  90     // Accelerators
  91     wxAcceleratorEntry entries[1];
  92     entries[0].Set(wxACCEL_CTRL, (int) 'V', WXPRINT_PREVIEW);
  93     wxAcceleratorTable accel(1, entries);
  94     frame->SetAcceleratorTable(accel);
  95
  96 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
  97   file_menu->AppendSeparator();
  98   file_menu->Append(WXPRINT_PRINT_PS, "Print PostScript...",              "Print (PostScript)");
  99   file_menu->Append(WXPRINT_PRINT_SETUP_PS, "Print Setup PostScript...",              "Setup printer properties (PostScript)");
 100   file_menu->Append(WXPRINT_PAGE_SETUP_PS, "Page Setup PostScript...",              "Page setup (PostScript)");
 101   file_menu->Append(WXPRINT_PREVIEW_PS, "Print Preview PostScript",              "Preview (PostScript)");
 102 #endif
 103   file_menu->AppendSeparator();
 104   file_menu->Append(WXPRINT_QUIT, "E&xit",                "Exit program");
 105
 106   wxMenu *help_menu = new wxMenu;
 107   help_menu->Append(WXPRINT_ABOUT, "&About",              "About this demo");
 108
 109   wxMenuBar *menu_bar = new wxMenuBar;
 110
 111   menu_bar->Append(file_menu, "&File");
 112   menu_bar->Append(help_menu, "&Help");
 113
 114   // Associate the menu bar with the frame
 115   frame->SetMenuBar(menu_bar);
 116
 117   MyCanvas *canvas = new MyCanvas(frame, wxPoint(0, 0), wxSize(100, 100), wxRETAINED|wxHSCROLL|wxVSCROLL);
 118
 119   // Give it scrollbars: the virtual canvas is 20 * 50 = 1000 pixels in each direction
 120   canvas->SetScrollbars(20, 20, 50, 50);
 121
 122   frame->canvas = canvas;
 123
 124   frame->Centre(wxBOTH);
 125   frame->Show(TRUE);
 126
 127   frame->SetStatusText("Printing demo");
 128
 129   SetTopWindow(frame);
 130
 131   return TRUE;
 132 }
 133
 134 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 135     EVT_MENU(WXPRINT_QUIT, MyFrame::OnExit)
 136     EVT_MENU(WXPRINT_PRINT, MyFrame::OnPrint)
 137     EVT_MENU(WXPRINT_PREVIEW, MyFrame::OnPrintPreview)
 138     EVT_MENU(WXPRINT_PRINT_SETUP, MyFrame::OnPrintSetup)
 139     EVT_MENU(WXPRINT_PAGE_SETUP, MyFrame::OnPageSetup)
 140     EVT_MENU(WXPRINT_ABOUT, MyFrame::OnPrintAbout)
 141 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
 142     EVT_MENU(WXPRINT_PRINT_PS, MyFrame::OnPrintPS)
 143     EVT_MENU(WXPRINT_PREVIEW_PS, MyFrame::OnPrintPreviewPS)
 144     EVT_MENU(WXPRINT_PRINT_SETUP_PS, MyFrame::OnPrintSetupPS)
 145     EVT_MENU(WXPRINT_PAGE_SETUP_PS, MyFrame::OnPageSetupPS)
 146 #endif
 147 END_EVENT_TABLE()
 148
 149 // Define my frame constructor
 150 MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size):
 151   wxFrame(frame, -1, title, pos, size)
 152 {
 153   canvas = (MyCanvas *) NULL;
 154 }
 155
 156 void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event))
 157 {
 158       Close(TRUE);
 159 }
 160
 161 void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event))
 162 {
 163 #ifdef __WXMSW__
 164       wxGetApp().SetPrintMode(wxPRINT_WINDOWS);
 165 #else
 166       wxGetApp().SetPrintMode(wxPRINT_POSTSCRIPT);
 167 #endif
 168       wxPrinter printer;
 169       MyPrintout printout("My printout");
 170       if (!printer.Print(this, &printout, TRUE))
 171         wxMessageBox("There was a problem printing.\nPerhaps your current printer is not set correctly?", "Printing", wxOK);
 172 }
 173
 174 void MyFrame::OnPrintPreview(wxCommandEvent& WXUNUSED(event))
 175 {
 176 #ifdef __WXMSW__
 177       wxGetApp().SetPrintMode(wxPRINT_WINDOWS);
 178 #else
 179       wxGetApp().SetPrintMode(wxPRINT_POSTSCRIPT);
 180 #endif
 181       wxPrintData printData;
 182       printData.SetOrientation(orientation);
 183
 184       // Pass two printout objects: for preview, and possible printing.
 185       wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printData);
 186       if (!preview->Ok())
 187       {
 188         delete preview;
 189         wxMessageBox("There was a problem previewing.\nPerhaps your current printer is not set correctly?", "Previewing", wxOK);
 190         return;
 191       }
 192
 193       wxPreviewFrame *frame = new wxPreviewFrame(preview, this, "Demo Print Preview", wxPoint(100, 100), wxSize(600, 650));
 194       frame->Centre(wxBOTH);
 195       frame->Initialize();
 196       frame->Show(TRUE);
 197 }
 198
 199 void MyFrame::OnPrintSetup(wxCommandEvent& WXUNUSED(event))
 200 {
 201 #ifdef __WXMSW__
 202       wxGetApp().SetPrintMode(wxPRINT_WINDOWS);
 203 #else
 204       wxGetApp().SetPrintMode(wxPRINT_POSTSCRIPT);
 205 #endif
 206       wxPrintData data;
 207       data.SetOrientation(orientation);
 208
 209 #ifdef __WXMSW__
 210       wxPrintDialog printerDialog(this, & data);
 211 #else
 212       wxGenericPrintDialog printerDialog(this, & data);
 213 #endif
 214       printerDialog.GetPrintData().SetSetupDialog(TRUE);
 215       printerDialog.ShowModal();
 216
 217       orientation = printerDialog.GetPrintData().GetOrientation();
 218 }
 219
 220 void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event))
 221 {
 222 #ifdef __WXMSW__
 223       wxGetApp().SetPrintMode(wxPRINT_WINDOWS);
 224 #else
 225       wxGetApp().SetPrintMode(wxPRINT_POSTSCRIPT);
 226 #endif
 227       wxPageSetupData data;
 228       data.SetOrientation(orientation);
 229
 230 #ifdef __WXMSW__
 231       wxPageSetupDialog pageSetupDialog(this, & data);
 232 #else
 233       wxGenericPageSetupDialog pageSetupDialog(this, & data);
 234 #endif
 235       pageSetupDialog.ShowModal();
 236
 237       data = pageSetupDialog.GetPageSetupData();
 238       orientation = data.GetOrientation();
 239 }
 240
 241 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
 242 void MyFrame::OnPrintPS(wxCommandEvent& WXUNUSED(event))
 243 {
 244       wxGetApp().SetPrintMode(wxPRINT_POSTSCRIPT);
 245
 246       wxPostScriptPrinter printer;
 247       MyPrintout printout("My printout");
 248       printer.Print(this, &printout, TRUE);
 249 }
 250
 251 void MyFrame::OnPrintPreviewPS(wxCommandEvent& WXUNUSED(event))
 252 {
 253       wxGetApp().SetPrintMode(wxPRINT_POSTSCRIPT);
 254
 255       wxPrintData printData;
 256       printData.SetOrientation(orientation);
 257
 258       // Pass two printout objects: for preview, and possible printing.
 259       wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printData);
 260       wxPreviewFrame *frame = new wxPreviewFrame(preview, this, "Demo Print Preview", wxPoint(100, 100), wxSize(600, 650));
 261       frame->Centre(wxBOTH);
 262       frame->Initialize();
 263       frame->Show(TRUE);
 264 }
 265
 266 void MyFrame::OnPrintSetupPS(wxCommandEvent& WXUNUSED(event))
 267 {
 268       wxGetApp().SetPrintMode(wxPRINT_POSTSCRIPT);
 269
 270       wxPrintData data;
 271       data.SetOrientation(orientation);
 272
 273       wxGenericPrintDialog printerDialog(this, & data);
 274       printerDialog.GetPrintData().SetSetupDialog(TRUE);
 275       printerDialog.ShowModal();
 276
 277       orientation = printerDialog.GetPrintData().GetOrientation();
 278 }
 279
 280 void MyFrame::OnPageSetupPS(wxCommandEvent& WXUNUSED(event))
 281 {
 282       wxGetApp().SetPrintMode(wxPRINT_POSTSCRIPT);
 283
 284       wxPageSetupData data;
 285       data.SetOrientation(orientation);
 286
 287       wxGenericPageSetupDialog pageSetupDialog(this, & data);
 288       pageSetupDialog.ShowModal();
 289
 290       orientation = pageSetupDialog.GetPageSetupData().GetOrientation();
 291 }
 292 #endif
 293
 294
 295 void MyFrame::OnPrintAbout(wxCommandEvent& WXUNUSED(event))
 296 {
 297       (void)wxMessageBox("wxWindows printing demo\nAuthor: Julian Smart julian.smart@ukonline.co.uk",
 298             "About wxWindows printing demo", wxOK|wxCENTRE);
 299 }
 300
 301 void MyFrame::Draw(wxDC& dc)
 302 {
 303   dc.SetFont(* wxGetApp().m_testFont);
 304
 305   dc.SetBackgroundMode(wxTRANSPARENT);
 306
 307   dc.SetBrush(* wxCYAN_BRUSH);
 308   dc.SetPen(* wxRED_PEN);
 309
 310   dc.DrawRectangle(0, 30, 200, 100);
 311   dc.DrawText("Rectangle 200 by 100", 40, 40);
 312
 313   dc.DrawEllipse(50, 140, 100, 50);
 314
 315   dc.DrawText("Test message: this is in 10 point text", 10, 180);
 316
 317   dc.SetPen(* wxBLACK_PEN);
 318   dc.DrawLine(0, 0, 200, 200);
 319   dc.DrawLine(200, 0, 0, 200);
 320
 321   wxIcon my_icon = wxICON(mondrian) ;
 322
 323   dc.DrawIcon( my_icon, 100, 100);
 324 }
 325
 326 void MyFrame::OnSize(wxSizeEvent& event )
 327 {
 328     wxFrame::OnSize(event);
 329 }
 330
 331 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 332         EVT_MOUSE_EVENTS(MyCanvas::OnEvent)
 333 END_EVENT_TABLE()
 334
 335 // Define a constructor for my canvas
 336 MyCanvas::MyCanvas(wxFrame *frame, const wxPoint& pos, const wxSize& size, long style):
 337  wxScrolledWindow(frame, -1, pos, size, style)
 338 {
 339 }
 340
 341 MyCanvas::~MyCanvas(void)
 342 {
 343 }
 344
 345 // Define the repainting behaviour
 346 void MyCanvas::OnDraw(wxDC& dc)
 347 {
 348   frame->Draw(dc);
 349 }
 350
 351 void MyCanvas::OnEvent(wxMouseEvent& WXUNUSED(event))
 352 {
 353 }
 354
 355 bool MyFrame::OnClose(void)
 356 {
 357   Show(FALSE);
 358   delete wxGetApp().m_testFont;
 359
 360   return TRUE;
 361 }
 362
 363 bool MyPrintout::OnPrintPage(int page)
 364 {
 365   wxDC *dc = GetDC();
 366   if (dc)
 367   {
 368     if (page == 1)
 369       DrawPageOne(dc);
 370     else if (page == 2)
 371       DrawPageTwo(dc);
 372
 373     dc->SetDeviceOrigin(0, 0);
 374     dc->SetUserScale(1.0, 1.0);
 375
 376     char buf[200];
 377     sprintf(buf, "PAGE %d", page);
 378     dc->DrawText(buf, 10, 10);
 379
 380     return TRUE;
 381   }
 382   else
 383     return FALSE;
 384 }
 385
 386 bool MyPrintout::OnBeginDocument(int startPage, int endPage)
 387 {
 388   if (!wxPrintout::OnBeginDocument(startPage, endPage))
 389     return FALSE;
 390
 391   return TRUE;
 392 }
 393
 394 void MyPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 395 {
 396   *minPage = 1;
 397   *maxPage = 2;
 398   *selPageFrom = 1;
 399   *selPageTo = 2;
 400 }
 401
 402 bool MyPrintout::HasPage(int pageNum)
 403 {
 404   return (pageNum == 1 || pageNum == 2);
 405 }
 406
 407 void MyPrintout::DrawPageOne(wxDC *dc)
 408 {
 409 /* You might use THIS code if you were scaling
 410  * graphics of known size to fit on the page.
 411  */
 412   int w, h;
 413
 414   // We know the graphic is 200x200. If we didn't know this,
 415   // we'd need to calculate it.
 416   float maxX = 200;
 417   float maxY = 200;
 418
 419   // Let's have at least 50 device units margin
 420   float marginX = 50;
 421   float marginY = 50;
 422
 423   // Add the margin to the graphic size
 424   maxX += (2*marginX);
 425   maxY += (2*marginY);
 426
 427   // Get the size of the DC in pixels
 428   dc->GetSize(&w, &h);
 429
 430   // Calculate a suitable scaling factor
 431   float scaleX=(float)(w/maxX);
 432   float scaleY=(float)(h/maxY);
 433
 434   // Use x or y scaling factor, whichever fits on the DC
 435   float actualScale = wxMin(scaleX,scaleY);
 436
 437   // Calculate the position on the DC for centring the graphic
 438   float posX = (float)((w - (200*actualScale))/2.0);
 439   float posY = (float)((h - (200*actualScale))/2.0);
 440
 441   // Set the scale and origin
 442   dc->SetUserScale(actualScale, actualScale);
 443   dc->SetDeviceOrigin( (long)posX, (long)posY );
 444
 445   frame->Draw(*dc);
 446 }
 447
 448 void MyPrintout::DrawPageTwo(wxDC *dc)
 449 {
 450 /* You might use THIS code to set the printer DC to ROUGHLY reflect
 451  * the screen text size. This page also draws lines of actual length 5cm
 452  * on the page.
 453  */
 454   // Get the logical pixels per inch of screen and printer
 455   int ppiScreenX, ppiScreenY;
 456   GetPPIScreen(&ppiScreenX, &ppiScreenY);
 457   int ppiPrinterX, ppiPrinterY;
 458   GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 459
 460   // This scales the DC so that the printout roughly represents the
 461   // the screen scaling. The text point size _should_ be the right size
 462   // but in fact is too small for some reason. This is a detail that will
 463   // need to be addressed at some point but can be fudged for the
 464   // moment.
 465   float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
 466
 467   // Now we have to check in case our real page size is reduced
 468   // (e.g. because we're drawing to a print preview memory DC)
 469   int pageWidth, pageHeight;
 470   int w, h;
 471   dc->GetSize(&w, &h);
 472   GetPageSizePixels(&pageWidth, &pageHeight);
 473
 474   // If printer pageWidth == current DC width, then this doesn't
 475   // change. But w might be the preview bitmap width, so scale down.
 476   float overallScale = scale * (float)(w/(float)pageWidth);
 477   dc->SetUserScale(overallScale, overallScale);
 478
 479   // Calculate conversion factor for converting millimetres into
 480   // logical units.
 481   // There are approx. 25.1 mm to the inch. There are ppi
 482   // device units to the inch. Therefore 1 mm corresponds to
 483   // ppi/25.1 device units. We also divide by the
 484   // screen-to-printer scaling factor, because we need to
 485   // unscale to pass logical units to DrawLine.
 486
 487   // Draw 50 mm by 50 mm L shape
 488   float logUnitsFactor = (float)(ppiPrinterX/(scale*25.1));
 489   float logUnits = (float)(50*logUnitsFactor);
 490   dc->SetPen(* wxBLACK_PEN);
 491   dc->DrawLine(50, 250, (long)(50.0 + logUnits), 250);
 492   dc->DrawLine(50, 250, 50, (long)(250.0 + logUnits));
 493
 494   dc->SetFont(* wxGetApp().m_testFont);
 495   dc->SetBackgroundMode(wxTRANSPARENT);
 496
 497   dc->DrawText("Some test text", 200, 200 );
 498
 499   // TESTING
 500
 501   int leftMargin = 20;
 502   int rightMargin = 20;
 503   int topMargin = 20;
 504   int bottomMargin = 20;
 505
 506   int pageWidthMM, pageHeightMM;
 507   GetPageSizeMM(&pageWidthMM, &pageHeightMM);
 508
 509   float leftMarginLogical = (float)(logUnitsFactor*leftMargin);
 510   float topMarginLogical = (float)(logUnitsFactor*topMargin);
 511   float bottomMarginLogical = (float)(logUnitsFactor*(pageHeightMM - bottomMargin));
 512   float rightMarginLogical = (float)(logUnitsFactor*(pageWidthMM - rightMargin));
 513
 514   dc->SetPen(* wxRED_PEN);
 515   dc->DrawLine( (long)leftMarginLogical, (long)topMarginLogical,
 516                 (long)rightMarginLogical, (long)topMarginLogical);
 517   dc->DrawLine( (long)leftMarginLogical, (long)bottomMarginLogical,
 518                  (long)rightMarginLogical,  (long)bottomMarginLogical);
 519
 520   WritePageHeader(this, dc, "A header", logUnitsFactor);
 521 }
 522
 523 // Writes a header on a page. Margin units are in millimetres.
 524 bool WritePageHeader(wxPrintout *printout, wxDC *dc, char *text, float mmToLogical)
 525 {
 526 /*
 527   static wxFont *headerFont = (wxFont *) NULL;
 528   if (!headerFont)
 529   {
 530     headerFont = wxTheFontList->FindOrCreateFont(16, wxSWISS, wxNORMAL, wxBOLD);
 531   }
 532   dc->SetFont(headerFont);
 533 */
 534
 535   int pageWidthMM, pageHeightMM;
 536
 537   printout->GetPageSizeMM(&pageWidthMM, &pageHeightMM);
 538
 539   int leftMargin = 10;
 540   int topMargin = 10;
 541   int rightMargin = 10;
 542
 543   float leftMarginLogical = (float)(mmToLogical*leftMargin);
 544   float topMarginLogical = (float)(mmToLogical*topMargin);
 545   float rightMarginLogical = (float)(mmToLogical*(pageWidthMM - rightMargin));
 546
 547   long xExtent, yExtent;
 548   dc->GetTextExtent(text, &xExtent, &yExtent);
 549   float xPos = (float)(((((pageWidthMM - leftMargin - rightMargin)/2.0)+leftMargin)*mmToLogical) - (xExtent/2.0));
 550   dc->DrawText(text, (long)xPos, (long)topMarginLogical);
 551
 552   dc->SetPen(* wxBLACK_PEN);
 553   dc->DrawLine( (long)leftMarginLogical, (long)(topMarginLogical+yExtent),
 554                 (long)rightMarginLogical, (long)topMarginLogical+yExtent );
 555
 556   return TRUE;
 557 }