samples/printing/printing.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        printing.cpp
   3 // Purpose:     Printing demo for wxWindows
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     1995
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  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 #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 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 // Global print data, to remember settings during the session
  58 wxPrintData *g_printData = (wxPrintData*) NULL ;
  59
  60 // Global page setup data
  61 wxPageSetupData* g_pageSetupData = (wxPageSetupData*) NULL;
  62
  63 // Main proc
  64 IMPLEMENT_APP(MyApp)
  65
  66 // Writes a header on a page. Margin units are in millimetres.
  67 bool WritePageHeader(wxPrintout *printout, wxDC *dc, char *text, float mmToLogical);
  68
  69 MyApp::MyApp()
  70 {
  71 }
  72
  73 // The `main program' equivalent, creating the windows and returning the
  74 // main frame
  75 bool MyApp::OnInit(void)
  76 {
  77     m_testFont = new wxFont(10, wxSWISS, wxNORMAL, wxNORMAL);
  78
  79     g_printData = new wxPrintData;
  80     g_pageSetupData = new wxPageSetupDialogData;
  81
  82     // Create the main frame window
  83     frame = new MyFrame((wxFrame *) NULL, (char *) "wxWindows Printing Demo", wxPoint(0, 0), wxSize(400, 400));
  84
  85     // Give it a status line
  86     frame->CreateStatusBar(2);
  87
  88     // Load icon and bitmap
  89     frame->SetIcon( wxICON( mondrian) );
  90
  91     // Make a menubar
  92     wxMenu *file_menu = new wxMenu;
  93
  94     file_menu->Append(WXPRINT_PRINT, "&Print...",              "Print");
  95     file_menu->Append(WXPRINT_PRINT_SETUP, "Print &Setup...",              "Setup printer properties");
  96     file_menu->Append(WXPRINT_PAGE_SETUP, "Page Set&up...",              "Page setup");
  97     file_menu->Append(WXPRINT_PREVIEW, "Print Pre&view",              "Preview");
  98
  99 #if wxUSE_ACCEL
 100     // Accelerators
 101     wxAcceleratorEntry entries[1];
 102     entries[0].Set(wxACCEL_CTRL, (int) 'V', WXPRINT_PREVIEW);
 103     wxAcceleratorTable accel(1, entries);
 104     frame->SetAcceleratorTable(accel);
 105 #endif
 106
 107 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
 108     file_menu->AppendSeparator();
 109     file_menu->Append(WXPRINT_PRINT_PS, "Print PostScript...",              "Print (PostScript)");
 110     file_menu->Append(WXPRINT_PRINT_SETUP_PS, "Print Setup PostScript...",              "Setup printer properties (PostScript)");
 111     file_menu->Append(WXPRINT_PAGE_SETUP_PS, "Page Setup PostScript...",              "Page setup (PostScript)");
 112     file_menu->Append(WXPRINT_PREVIEW_PS, "Print Preview PostScript",              "Preview (PostScript)");
 113 #endif
 114     file_menu->AppendSeparator();
 115     file_menu->Append(WXPRINT_QUIT, "E&xit",                "Exit program");
 116
 117     wxMenu *help_menu = new wxMenu;
 118     help_menu->Append(WXPRINT_ABOUT, "&About",              "About this demo");
 119
 120     wxMenuBar *menu_bar = new wxMenuBar;
 121
 122     menu_bar->Append(file_menu, "&File");
 123     menu_bar->Append(help_menu, "&Help");
 124
 125     // Associate the menu bar with the frame
 126     frame->SetMenuBar(menu_bar);
 127
 128     MyCanvas *canvas = new MyCanvas(frame, wxPoint(0, 0), wxSize(100, 100), wxRETAINED|wxHSCROLL|wxVSCROLL);
 129
 130     // Give it scrollbars: the virtual canvas is 20 * 50 = 1000 pixels in each direction
 131     canvas->SetScrollbars(20, 20, 50, 50);
 132
 133     frame->canvas = canvas;
 134
 135     frame->Centre(wxBOTH);
 136     frame->Show(TRUE);
 137
 138     frame->SetStatusText("Printing demo");
 139
 140     SetTopWindow(frame);
 141
 142     return TRUE;
 143 }
 144
 145 int MyApp::OnExit()
 146 {
 147     delete wxGetApp().m_testFont;
 148     delete g_printData;
 149     delete g_pageSetupData;
 150     return 1;
 151 }
 152
 153 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 154 EVT_MENU(WXPRINT_QUIT, MyFrame::OnExit)
 155 EVT_MENU(WXPRINT_PRINT, MyFrame::OnPrint)
 156 EVT_MENU(WXPRINT_PREVIEW, MyFrame::OnPrintPreview)
 157 EVT_MENU(WXPRINT_PRINT_SETUP, MyFrame::OnPrintSetup)
 158 EVT_MENU(WXPRINT_PAGE_SETUP, MyFrame::OnPageSetup)
 159 EVT_MENU(WXPRINT_ABOUT, MyFrame::OnPrintAbout)
 160 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
 161 EVT_MENU(WXPRINT_PRINT_PS, MyFrame::OnPrintPS)
 162 EVT_MENU(WXPRINT_PREVIEW_PS, MyFrame::OnPrintPreviewPS)
 163 EVT_MENU(WXPRINT_PRINT_SETUP_PS, MyFrame::OnPrintSetupPS)
 164 EVT_MENU(WXPRINT_PAGE_SETUP_PS, MyFrame::OnPageSetupPS)
 165 #endif
 166 END_EVENT_TABLE()
 167
 168 // Define my frame constructor
 169 MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size):
 170 wxFrame(frame, -1, title, pos, size)
 171 {
 172     canvas = (MyCanvas *) NULL;
 173 }
 174
 175 void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event))
 176 {
 177     Close(TRUE);
 178 }
 179
 180 void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event))
 181 {
 182     wxPrintDialogData printDialogData(* g_printData);
 183
 184     wxPrinter printer(& printDialogData);
 185     MyPrintout printout("My printout");
 186     if (!printer.Print(this, &printout, TRUE))
 187     {
 188         if (wxPrinter::GetLastError() == wxPRINTER_ERROR)
 189             wxMessageBox("There was a problem printing.\nPerhaps your current printer is not set correctly?", "Printing", wxOK);
 190         else
 191             wxMessageBox("You canceled printing", "Printing", wxOK);
 192     }
 193     else
 194     {
 195         (*g_printData) = printer.GetPrintDialogData().GetPrintData();
 196     }
 197 }
 198
 199 void MyFrame::OnPrintPreview(wxCommandEvent& WXUNUSED(event))
 200 {
 201     // Pass two printout objects: for preview, and possible printing.
 202     wxPrintDialogData printDialogData(* g_printData);
 203     wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printDialogData);
 204     if (!preview->Ok())
 205     {
 206         delete preview;
 207         wxMessageBox("There was a problem previewing.\nPerhaps your current printer is not set correctly?", "Previewing", wxOK);
 208         return;
 209     }
 210
 211     wxPreviewFrame *frame = new wxPreviewFrame(preview, this, "Demo Print Preview", wxPoint(100, 100), wxSize(600, 650));
 212     frame->Centre(wxBOTH);
 213     frame->Initialize();
 214     frame->Show(TRUE);
 215 }
 216
 217 void MyFrame::OnPrintSetup(wxCommandEvent& WXUNUSED(event))
 218 {
 219     wxPrintDialogData printDialogData(* g_printData);
 220     wxPrintDialog printerDialog(this, & printDialogData);
 221
 222     printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
 223     printerDialog.ShowModal();
 224
 225     (*g_printData) = printerDialog.GetPrintDialogData().GetPrintData();
 226 }
 227
 228 void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event))
 229 {
 230     (*g_pageSetupData) = * g_printData;
 231
 232     wxPageSetupDialog pageSetupDialog(this, g_pageSetupData);
 233     pageSetupDialog.ShowModal();
 234
 235     (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData();
 236     (*g_pageSetupData) = pageSetupDialog.GetPageSetupData();
 237 }
 238
 239 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
 240 void MyFrame::OnPrintPS(wxCommandEvent& WXUNUSED(event))
 241 {
 242     wxPostScriptPrinter printer(g_printData);
 243     MyPrintout printout("My printout");
 244     printer.Print(this, &printout, TRUE);
 245
 246     (*g_printData) = printer.GetPrintData();
 247 }
 248
 249 void MyFrame::OnPrintPreviewPS(wxCommandEvent& WXUNUSED(event))
 250 {
 251     // Pass two printout objects: for preview, and possible printing.
 252     wxPrintDialogData printDialogData(* g_printData);
 253     wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printDialogData);
 254     wxPreviewFrame *frame = new wxPreviewFrame(preview, this, "Demo Print Preview", wxPoint(100, 100), wxSize(600, 650));
 255     frame->Centre(wxBOTH);
 256     frame->Initialize();
 257     frame->Show(TRUE);
 258 }
 259
 260 void MyFrame::OnPrintSetupPS(wxCommandEvent& WXUNUSED(event))
 261 {
 262     wxPrintDialogData printDialogData(* g_printData);
 263     wxGenericPrintDialog printerDialog(this, & printDialogData);
 264
 265     printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
 266     printerDialog.ShowModal();
 267
 268     (*g_printData) = printerDialog.GetPrintDialogData().GetPrintData();
 269 }
 270
 271 void MyFrame::OnPageSetupPS(wxCommandEvent& WXUNUSED(event))
 272 {
 273     (*g_pageSetupData) = * g_printData;
 274
 275     wxGenericPageSetupDialog pageSetupDialog(this, g_pageSetupData);
 276     pageSetupDialog.ShowModal();
 277
 278     (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData();
 279     (*g_pageSetupData) = pageSetupDialog.GetPageSetupData();
 280 }
 281 #endif
 282
 283
 284 void MyFrame::OnPrintAbout(wxCommandEvent& WXUNUSED(event))
 285 {
 286     (void)wxMessageBox("wxWindows printing demo\nAuthor: Julian Smart",
 287         "About wxWindows printing demo", wxOK|wxCENTRE);
 288 }
 289
 290 void MyFrame::Draw(wxDC& dc)
 291 {
 292     dc.SetBackground(*wxWHITE_BRUSH);
 293     dc.Clear();
 294     dc.SetFont(* wxGetApp().m_testFont);
 295
 296     dc.SetBackgroundMode(wxTRANSPARENT);
 297
 298     dc.SetBrush(* wxCYAN_BRUSH);
 299     dc.SetPen(* wxRED_PEN);
 300
 301     dc.DrawRectangle(0, 30, 200, 100);
 302
 303     dc.DrawText( wxT("Rectangle 200 by 100"), 40, 40);
 304
 305     dc.DrawEllipse(50, 140, 100, 50);
 306
 307     dc.DrawText( wxT("Test message: this is in 10 point text"), 10, 180);
 308
 309 #if wxUSE_UNICODE
 310     char *test = "Greek (Ελληνικά) Γειά σας -- Hebrew    שלום -- Japanese (日本語)";
 311     wxString tmp = wxConvUTF8.cMB2WC( test );
 312     dc.DrawText( tmp, 10, 200 );
 313 #endif
 314
 315     dc.SetPen(* wxBLACK_PEN);
 316     dc.DrawLine(0, 0, 200, 200);
 317     dc.DrawLine(200, 0, 0, 200);
 318
 319     wxIcon my_icon = wxICON(mondrian) ;
 320
 321     dc.DrawIcon( my_icon, 100, 100);
 322 }
 323
 324 void MyFrame::OnSize(wxSizeEvent& event )
 325 {
 326     wxFrame::OnSize(event);
 327 }
 328
 329 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 330 EVT_MOUSE_EVENTS(MyCanvas::OnEvent)
 331 END_EVENT_TABLE()
 332
 333 // Define a constructor for my canvas
 334 MyCanvas::MyCanvas(wxFrame *frame, const wxPoint& pos, const wxSize& size, long style):
 335     wxScrolledWindow(frame, -1, pos, size, style)
 336 {
 337     SetBackgroundColour(* wxWHITE);
 338 }
 339
 340 MyCanvas::~MyCanvas(void)
 341 {
 342 }
 343
 344 // Define the repainting behaviour
 345 void MyCanvas::OnDraw(wxDC& dc)
 346 {
 347     frame->Draw(dc);
 348 }
 349
 350 void MyCanvas::OnEvent(wxMouseEvent& WXUNUSED(event))
 351 {
 352 }
 353
 354 bool MyPrintout::OnPrintPage(int page)
 355 {
 356     wxDC *dc = GetDC();
 357     if (dc)
 358     {
 359         if (page == 1)
 360             DrawPageOne(dc);
 361         else if (page == 2)
 362             DrawPageTwo(dc);
 363
 364         dc->SetDeviceOrigin(0, 0);
 365         dc->SetUserScale(1.0, 1.0);
 366
 367         wxChar buf[200];
 368         wxSprintf(buf, wxT("PAGE %d"), page);
 369         dc->DrawText(buf, 10, 10);
 370
 371         return TRUE;
 372     }
 373     else
 374         return FALSE;
 375 }
 376
 377 bool MyPrintout::OnBeginDocument(int startPage, int endPage)
 378 {
 379     if (!wxPrintout::OnBeginDocument(startPage, endPage))
 380         return FALSE;
 381
 382     return TRUE;
 383 }
 384
 385 void MyPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 386 {
 387     *minPage = 1;
 388     *maxPage = 2;
 389     *selPageFrom = 1;
 390     *selPageTo = 2;
 391 }
 392
 393 bool MyPrintout::HasPage(int pageNum)
 394 {
 395     return (pageNum == 1 || pageNum == 2);
 396 }
 397
 398 void MyPrintout::DrawPageOne(wxDC *dc)
 399 {
 400 /* You might use THIS code if you were scaling
 401 * graphics of known size to fit on the page.
 402     */
 403     int w, h;
 404
 405     // We know the graphic is 200x200. If we didn't know this,
 406     // we'd need to calculate it.
 407     float maxX = 200;
 408     float maxY = 200;
 409
 410     // Let's have at least 50 device units margin
 411     float marginX = 50;
 412     float marginY = 50;
 413
 414     // Add the margin to the graphic size
 415     maxX += (2*marginX);
 416     maxY += (2*marginY);
 417
 418     // Get the size of the DC in pixels
 419     dc->GetSize(&w, &h);
 420
 421     // Calculate a suitable scaling factor
 422     float scaleX=(float)(w/maxX);
 423     float scaleY=(float)(h/maxY);
 424
 425     // Use x or y scaling factor, whichever fits on the DC
 426     float actualScale = wxMin(scaleX,scaleY);
 427
 428     // Calculate the position on the DC for centring the graphic
 429     float posX = (float)((w - (200*actualScale))/2.0);
 430     float posY = (float)((h - (200*actualScale))/2.0);
 431
 432     // Set the scale and origin
 433     dc->SetUserScale(actualScale, actualScale);
 434     dc->SetDeviceOrigin( (long)posX, (long)posY );
 435
 436     frame->Draw(*dc);
 437 }
 438
 439 void MyPrintout::DrawPageTwo(wxDC *dc)
 440 {
 441 /* You might use THIS code to set the printer DC to ROUGHLY reflect
 442 * the screen text size. This page also draws lines of actual length 5cm
 443 * on the page.
 444     */
 445     // Get the logical pixels per inch of screen and printer
 446     int ppiScreenX, ppiScreenY;
 447     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 448     int ppiPrinterX, ppiPrinterY;
 449     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 450
 451     // This scales the DC so that the printout roughly represents the
 452     // the screen scaling. The text point size _should_ be the right size
 453     // but in fact is too small for some reason. This is a detail that will
 454     // need to be addressed at some point but can be fudged for the
 455     // moment.
 456     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
 457
 458     // Now we have to check in case our real page size is reduced
 459     // (e.g. because we're drawing to a print preview memory DC)
 460     int pageWidth, pageHeight;
 461     int w, h;
 462     dc->GetSize(&w, &h);
 463     GetPageSizePixels(&pageWidth, &pageHeight);
 464
 465     // If printer pageWidth == current DC width, then this doesn't
 466     // change. But w might be the preview bitmap width, so scale down.
 467     float overallScale = scale * (float)(w/(float)pageWidth);
 468     dc->SetUserScale(overallScale, overallScale);
 469
 470     // Calculate conversion factor for converting millimetres into
 471     // logical units.
 472     // There are approx. 25.1 mm to the inch. There are ppi
 473     // device units to the inch. Therefore 1 mm corresponds to
 474     // ppi/25.1 device units. We also divide by the
 475     // screen-to-printer scaling factor, because we need to
 476     // unscale to pass logical units to DrawLine.
 477
 478     // Draw 50 mm by 50 mm L shape
 479     float logUnitsFactor = (float)(ppiPrinterX/(scale*25.1));
 480     float logUnits = (float)(50*logUnitsFactor);
 481     dc->SetPen(* wxBLACK_PEN);
 482     dc->DrawLine(50, 250, (long)(50.0 + logUnits), 250);
 483     dc->DrawLine(50, 250, 50, (long)(250.0 + logUnits));
 484
 485     dc->SetFont(* wxGetApp().m_testFont);
 486     dc->SetBackgroundMode(wxTRANSPARENT);
 487
 488
 489     { // GetTextExtent demo:
 490         wxString words[7] = {"This ", "is ", "GetTextExtent ", "testing ", "string. ", "Enjoy ", "it!"};
 491         long w, h;
 492         long x = 200, y= 250;
 493         wxFont fnt(15, wxSWISS, wxNORMAL, wxNORMAL);
 494
 495         dc->SetFont(fnt);
 496         for (int i = 0; i < 7; i++) {
 497             dc->GetTextExtent(words[i], &w, &h);
 498             dc->DrawRectangle(x, y, w, h);
 499             dc->DrawText(words[i], x, y);
 500             x += w;
 501         }
 502         dc->SetFont(* wxGetApp().m_testFont);
 503     }
 504
 505     dc->DrawText("Some test text", 200, 300 );
 506
 507     // TESTING
 508
 509     int leftMargin = 20;
 510     int rightMargin = 20;
 511     int topMargin = 20;
 512     int bottomMargin = 20;
 513
 514     int pageWidthMM, pageHeightMM;
 515     GetPageSizeMM(&pageWidthMM, &pageHeightMM);
 516
 517     float leftMarginLogical = (float)(logUnitsFactor*leftMargin);
 518     float topMarginLogical = (float)(logUnitsFactor*topMargin);
 519     float bottomMarginLogical = (float)(logUnitsFactor*(pageHeightMM - bottomMargin));
 520     float rightMarginLogical = (float)(logUnitsFactor*(pageWidthMM - rightMargin));
 521
 522     dc->SetPen(* wxRED_PEN);
 523     dc->DrawLine( (long)leftMarginLogical, (long)topMarginLogical,
 524         (long)rightMarginLogical, (long)topMarginLogical);
 525     dc->DrawLine( (long)leftMarginLogical, (long)bottomMarginLogical,
 526         (long)rightMarginLogical,  (long)bottomMarginLogical);
 527
 528     WritePageHeader(this, dc, "A header", logUnitsFactor);
 529 }
 530
 531 // Writes a header on a page. Margin units are in millimetres.
 532 bool WritePageHeader(wxPrintout *printout, wxDC *dc, char *text, float mmToLogical)
 533 {
 534 /*
 535 static wxFont *headerFont = (wxFont *) NULL;
 536 if (!headerFont)
 537 {
 538 headerFont = wxTheFontList->FindOrCreateFont(16, wxSWISS, wxNORMAL, wxBOLD);
 539 }
 540 dc->SetFont(headerFont);
 541     */
 542
 543     int pageWidthMM, pageHeightMM;
 544
 545     printout->GetPageSizeMM(&pageWidthMM, &pageHeightMM);
 546
 547     int leftMargin = 10;
 548     int topMargin = 10;
 549     int rightMargin = 10;
 550
 551     float leftMarginLogical = (float)(mmToLogical*leftMargin);
 552     float topMarginLogical = (float)(mmToLogical*topMargin);
 553     float rightMarginLogical = (float)(mmToLogical*(pageWidthMM - rightMargin));
 554
 555     long xExtent, yExtent;
 556     dc->GetTextExtent(text, &xExtent, &yExtent);
 557     float xPos = (float)(((((pageWidthMM - leftMargin - rightMargin)/2.0)+leftMargin)*mmToLogical) - (xExtent/2.0));
 558     dc->DrawText(text, (long)xPos, (long)topMarginLogical);
 559
 560     dc->SetPen(* wxBLACK_PEN);
 561     dc->DrawLine( (long)leftMarginLogical, (long)(topMarginLogical+yExtent),
 562         (long)rightMarginLogical, (long)topMarginLogical+yExtent );
 563
 564     return TRUE;
 565 }