src/common/prntbase.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        prntbase.cpp
   3 // Purpose:     Printing framework base class implementation
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "prntbase.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 #if wxUSE_PRINTING_ARCHITECTURE
  26
  27 #ifndef WX_PRECOMP
  28 #include "wx/utils.h"
  29 #include "wx/dc.h"
  30 #include "wx/app.h"
  31 #include "wx/msgdlg.h"
  32 #include "wx/layout.h"
  33 #include "wx/choice.h"
  34 #include "wx/button.h"
  35 #include "wx/settings.h"
  36 #include "wx/dcmemory.h"
  37 #include "wx/stattext.h"
  38 #include "wx/intl.h"
  39 #include "wx/textdlg.h"
  40 #include "wx/sizer.h"
  41 #endif // !WX_PRECOMP
  42
  43 #include "wx/prntbase.h"
  44 #include "wx/dcprint.h"
  45 #include "wx/printdlg.h"
  46 #include "wx/module.h"
  47
  48 #include <stdlib.h>
  49 #include <string.h>
  50
  51 #ifdef __WXMSW__
  52     #include "wx/msw/private.h"
  53     #include <commdlg.h>
  54
  55     #ifndef __WIN32__
  56         #include <print.h>
  57     #endif
  58 #endif // __WXMSW__
  59
  60 IMPLEMENT_CLASS(wxPrinterBase, wxObject)
  61 IMPLEMENT_ABSTRACT_CLASS(wxPrintout, wxObject)
  62 IMPLEMENT_CLASS(wxPreviewCanvas, wxWindow)
  63 IMPLEMENT_CLASS(wxPreviewControlBar, wxWindow)
  64 IMPLEMENT_CLASS(wxPreviewFrame, wxFrame)
  65 IMPLEMENT_CLASS(wxPrintPreviewBase, wxObject)
  66
  67 BEGIN_EVENT_TABLE(wxPrintAbortDialog, wxDialog)
  68     EVT_BUTTON(wxID_CANCEL, wxPrintAbortDialog::OnCancel)
  69 END_EVENT_TABLE()
  70
  71 BEGIN_EVENT_TABLE(wxPreviewCanvas, wxScrolledWindow)
  72     EVT_PAINT(wxPreviewCanvas::OnPaint)
  73     EVT_CHAR(wxPreviewCanvas::OnChar)
  74     EVT_SYS_COLOUR_CHANGED(wxPreviewCanvas::OnSysColourChanged)
  75 END_EVENT_TABLE()
  76
  77 /*
  78 * Printer
  79 */
  80
  81 wxPrinterBase::wxPrinterBase(wxPrintDialogData *data)
  82 {
  83     m_currentPrintout = (wxPrintout *) NULL;
  84     sm_abortWindow = (wxWindow *) NULL;
  85     sm_abortIt = FALSE;
  86     if (data)
  87         m_printDialogData = (*data);
  88     sm_lastError = wxPRINTER_NO_ERROR;
  89 }
  90
  91 wxWindow *wxPrinterBase::sm_abortWindow = (wxWindow *) NULL;
  92 bool wxPrinterBase::sm_abortIt = FALSE;
  93 wxPrinterError wxPrinterBase::sm_lastError = wxPRINTER_NO_ERROR;
  94
  95 wxPrinterBase::~wxPrinterBase()
  96 {
  97 }
  98
  99 void wxPrintAbortDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
 100 {
 101     wxPrinterBase::sm_abortIt = TRUE;
 102     wxPrinterBase::sm_abortWindow->Show(FALSE);
 103     wxPrinterBase::sm_abortWindow->Close(TRUE);
 104     wxPrinterBase::sm_abortWindow = (wxWindow *) NULL;
 105 }
 106
 107 wxWindow *wxPrinterBase::CreateAbortWindow(wxWindow *parent, wxPrintout * printout)
 108 {
 109     wxPrintAbortDialog *dialog = new wxPrintAbortDialog(parent, _("Printing ") , wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE);
 110
 111     wxBoxSizer *button_sizer = new wxBoxSizer( wxVERTICAL );
 112     button_sizer->Add( new wxStaticText(dialog, -1, _("Please wait while printing\n") + printout->GetTitle() ), 0, wxALL, 10 );
 113     button_sizer->Add( new wxButton( dialog, wxID_CANCEL, wxT("Cancel") ), 0, wxALL | wxALIGN_CENTER, 10 );
 114
 115     dialog->SetAutoLayout( TRUE );
 116     dialog->SetSizer( button_sizer );
 117
 118     button_sizer->Fit(dialog);
 119     button_sizer->SetSizeHints (dialog) ;
 120
 121     return dialog;
 122 }
 123
 124 void wxPrinterBase::ReportError(wxWindow *parent, wxPrintout *WXUNUSED(printout), const wxString& message)
 125 {
 126     wxMessageBox(message, _("Printing Error"), wxOK, parent);
 127 }
 128
 129 /*
 130 * Printout class
 131 */
 132
 133 wxPrintout::wxPrintout(const wxString& title)
 134 {
 135     m_printoutTitle = title ;
 136     m_printoutDC = (wxDC *) NULL;
 137     m_pageWidthMM = 0;
 138     m_pageHeightMM = 0;
 139     m_pageWidthPixels = 0;
 140     m_pageHeightPixels = 0;
 141     m_PPIScreenX = 0;
 142     m_PPIScreenY = 0;
 143     m_PPIPrinterX = 0;
 144     m_PPIPrinterY = 0;
 145     m_isPreview = FALSE;
 146 }
 147
 148 wxPrintout::~wxPrintout()
 149 {
 150 }
 151
 152 bool wxPrintout::OnBeginDocument(int WXUNUSED(startPage), int WXUNUSED(endPage))
 153 {
 154     return GetDC()->StartDoc(_("Printing ") + m_printoutTitle);
 155 }
 156
 157 void wxPrintout::OnEndDocument()
 158 {
 159     GetDC()->EndDoc();
 160 }
 161
 162 void wxPrintout::OnBeginPrinting()
 163 {
 164 }
 165
 166 void wxPrintout::OnEndPrinting()
 167 {
 168 }
 169
 170 bool wxPrintout::HasPage(int page)
 171 {
 172     return (page == 1);
 173 }
 174
 175 void wxPrintout::GetPageInfo(int *minPage, int *maxPage, int *fromPage, int *toPage)
 176 {
 177     *minPage = 1;
 178     *maxPage = 32000;
 179     *fromPage = 1;
 180     *toPage = 1;
 181 }
 182
 183 /*
 184 * Preview canvas
 185 */
 186
 187 wxPreviewCanvas::wxPreviewCanvas(wxPrintPreviewBase *preview, wxWindow *parent,
 188                                  const wxPoint& pos, const wxSize& size, long style, const wxString& name):
 189 wxScrolledWindow(parent, -1, pos, size, style, name)
 190 {
 191     m_printPreview = preview;
 192 #ifdef __WXMAC__
 193     // The app workspace colour is always white, but we should have
 194     // a contrast with the page.
 195     wxSystemColour colourIndex = wxSYS_COLOUR_3DDKSHADOW;
 196 #else
 197     wxSystemColour colourIndex = wxSYS_COLOUR_APPWORKSPACE;
 198 #endif
 199     SetBackgroundColour(wxSystemSettings::GetColour(colourIndex));
 200
 201     SetScrollbars(10, 10, 100, 100);
 202 }
 203
 204 wxPreviewCanvas::~wxPreviewCanvas()
 205 {
 206 }
 207
 208 void wxPreviewCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
 209 {
 210     wxPaintDC dc(this);
 211     PrepareDC( dc );
 212
 213 /*
 214 #ifdef __WXGTK__
 215     if (!GetUpdateRegion().IsEmpty())
 216         dc.SetClippingRegion( GetUpdateRegion() );
 217 #endif
 218 */
 219
 220     if (m_printPreview)
 221     {
 222         m_printPreview->PaintPage(this, dc);
 223     }
 224 }
 225
 226 // Responds to colour changes, and passes event on to children.
 227 void wxPreviewCanvas::OnSysColourChanged(wxSysColourChangedEvent& event)
 228 {
 229 #ifdef __WXMAC__
 230     // The app workspace colour is always white, but we should have
 231     // a contrast with the page.
 232     wxSystemColour colourIndex = wxSYS_COLOUR_3DDKSHADOW;
 233 #else
 234     wxSystemColour colourIndex = wxSYS_COLOUR_APPWORKSPACE;
 235 #endif
 236     SetBackgroundColour(wxSystemSettings::GetColour(colourIndex));
 237     Refresh();
 238
 239     // Propagate the event to the non-top-level children
 240     wxWindow::OnSysColourChanged(event);
 241 }
 242
 243 void wxPreviewCanvas::OnChar(wxKeyEvent &event)
 244 {
 245     wxPreviewControlBar* controlBar = ((wxPreviewFrame*) GetParent())->GetControlBar();
 246     if (event.GetKeyCode() == WXK_ESCAPE)
 247     {
 248         ((wxPreviewFrame*) GetParent())->Close(TRUE);
 249         return;
 250     }
 251     else if (event.GetKeyCode() == WXK_TAB)
 252     {
 253         controlBar->OnGoto();
 254         return;
 255     }
 256     else if (event.GetKeyCode() == WXK_RETURN)
 257     {
 258         controlBar->OnPrint();
 259         return;
 260     }
 261
 262     if (!event.ControlDown())
 263     {
 264         event.Skip();
 265         return;
 266     }
 267
 268     switch(event.GetKeyCode())
 269     {
 270         case WXK_NEXT:
 271             controlBar->OnNext(); break;
 272         case WXK_PRIOR:
 273             controlBar->OnPrevious(); break;
 274         case WXK_HOME:
 275             controlBar->OnFirst(); break;
 276         case WXK_END:
 277             controlBar->OnLast(); break;
 278         default:
 279             event.Skip();
 280     }
 281 }
 282
 283 /*
 284 * Preview control bar
 285 */
 286
 287 BEGIN_EVENT_TABLE(wxPreviewControlBar, wxPanel)
 288     EVT_BUTTON(wxID_PREVIEW_CLOSE,    wxPreviewControlBar::OnWindowClose)
 289     EVT_BUTTON(wxID_PREVIEW_PRINT,    wxPreviewControlBar::OnPrintButton)
 290     EVT_BUTTON(wxID_PREVIEW_PREVIOUS, wxPreviewControlBar::OnPreviousButton)
 291     EVT_BUTTON(wxID_PREVIEW_NEXT,     wxPreviewControlBar::OnNextButton)
 292     EVT_BUTTON(wxID_PREVIEW_FIRST,    wxPreviewControlBar::OnFirstButton)
 293     EVT_BUTTON(wxID_PREVIEW_LAST,     wxPreviewControlBar::OnLastButton)
 294     EVT_BUTTON(wxID_PREVIEW_GOTO,     wxPreviewControlBar::OnGotoButton)
 295     EVT_CHOICE(wxID_PREVIEW_ZOOM,     wxPreviewControlBar::OnZoom)
 296     EVT_PAINT(wxPreviewControlBar::OnPaint)
 297 END_EVENT_TABLE()
 298
 299 wxPreviewControlBar::wxPreviewControlBar(wxPrintPreviewBase *preview, long buttons,
 300                                          wxWindow *parent, const wxPoint& pos, const wxSize& size,
 301                                          long style, const wxString& name):
 302 wxPanel(parent, -1, pos, size, style, name)
 303 {
 304     m_printPreview = preview;
 305     m_closeButton = (wxButton *) NULL;
 306     m_nextPageButton = (wxButton *) NULL;
 307     m_previousPageButton = (wxButton *) NULL;
 308     m_printButton = (wxButton *) NULL;
 309     m_zoomControl = (wxChoice *) NULL;
 310     m_buttonFlags = buttons;
 311 }
 312
 313 wxPreviewControlBar::~wxPreviewControlBar()
 314 {
 315 }
 316
 317 void wxPreviewControlBar::OnPaint(wxPaintEvent& WXUNUSED(event))
 318 {
 319     wxPaintDC dc(this);
 320
 321     int w, h;
 322     GetSize(&w, &h);
 323     dc.SetPen(*wxBLACK_PEN);
 324     dc.SetBrush(*wxTRANSPARENT_BRUSH);
 325     dc.DrawLine( 0, h-1, w, h-1 );
 326 }
 327
 328 void wxPreviewControlBar::OnWindowClose(wxCommandEvent& WXUNUSED(event))
 329 {
 330     wxPreviewFrame *frame = (wxPreviewFrame *)GetParent();
 331     frame->Close(TRUE);
 332 }
 333
 334 void wxPreviewControlBar::OnPrint(void)
 335 {
 336     wxPrintPreviewBase *preview = GetPrintPreview();
 337     preview->Print(TRUE);
 338 }
 339
 340 void wxPreviewControlBar::OnNext(void)
 341 {
 342     wxPrintPreviewBase *preview = GetPrintPreview();
 343     if (preview)
 344     {
 345         int currentPage = preview->GetCurrentPage();
 346         if ((preview->GetMaxPage() > 0) &&
 347             (currentPage < preview->GetMaxPage()) &&
 348             preview->GetPrintout()->HasPage(currentPage + 1))
 349         {
 350             preview->SetCurrentPage(currentPage + 1);
 351         }
 352     }
 353 }
 354
 355 void wxPreviewControlBar::OnPrevious(void)
 356 {
 357     wxPrintPreviewBase *preview = GetPrintPreview();
 358     if (preview)
 359     {
 360         int currentPage = preview->GetCurrentPage();
 361         if ((preview->GetMinPage() > 0) &&
 362             (currentPage > preview->GetMinPage()) &&
 363             preview->GetPrintout()->HasPage(currentPage - 1))
 364         {
 365             preview->SetCurrentPage(currentPage - 1);
 366         }
 367     }
 368 }
 369
 370 void wxPreviewControlBar::OnFirst(void)
 371 {
 372     wxPrintPreviewBase *preview = GetPrintPreview();
 373     if (preview)
 374     {
 375         int currentPage = preview->GetMinPage();
 376         if (preview->GetPrintout()->HasPage(currentPage))
 377         {
 378             preview->SetCurrentPage(currentPage);
 379         }
 380     }
 381 }
 382
 383 void wxPreviewControlBar::OnLast(void)
 384 {
 385     wxPrintPreviewBase *preview = GetPrintPreview();
 386     if (preview)
 387     {
 388         int currentPage = preview->GetMaxPage();
 389         if (preview->GetPrintout()->HasPage(currentPage))
 390         {
 391             preview->SetCurrentPage(currentPage);
 392         }
 393     }
 394 }
 395
 396 void wxPreviewControlBar::OnGoto(void)
 397 {
 398     wxPrintPreviewBase *preview = GetPrintPreview();
 399     if (preview)
 400     {
 401         long currentPage;
 402
 403         if (preview->GetMinPage() > 0)
 404         {
 405             wxString strPrompt;
 406             wxString strPage;
 407
 408             strPrompt.Printf( _("Enter a page number between %d and %d:"),
 409                 preview->GetMinPage(), preview->GetMaxPage());
 410             strPage.Printf( wxT("%d"), preview->GetCurrentPage() );
 411
 412             strPage =
 413                 wxGetTextFromUser( strPrompt, _("Goto Page"), strPage, GetParent());
 414
 415             if ( strPage.ToLong( &currentPage ) )
 416                 if (preview->GetPrintout()->HasPage(currentPage))
 417                 {
 418                     preview->SetCurrentPage(currentPage);
 419                 }
 420         }
 421     }
 422 }
 423
 424 void wxPreviewControlBar::OnZoom(wxCommandEvent& WXUNUSED(event))
 425 {
 426     int zoom = GetZoomControl();
 427     if (GetPrintPreview())
 428         GetPrintPreview()->SetZoom(zoom);
 429 }
 430
 431 void wxPreviewControlBar::CreateButtons()
 432 {
 433     SetSize(0, 0, 400, 40);
 434
 435     wxBoxSizer *item0 = new wxBoxSizer( wxHORIZONTAL );
 436
 437     int smallButtonWidth = 45;
 438
 439     m_closeButton = new wxButton( this, wxID_PREVIEW_CLOSE, _("&Close"), wxDefaultPosition, wxDefaultSize, 0 );
 440     item0->Add( m_closeButton, 0, wxALIGN_CENTRE|wxALL, 5 );
 441
 442     if (m_buttonFlags & wxPREVIEW_PRINT)
 443     {
 444         m_printButton = new wxButton( this, wxID_PREVIEW_PRINT, _("&Print..."), wxDefaultPosition, wxDefaultSize, 0 );
 445         item0->Add( m_printButton, 0, wxALIGN_CENTRE|wxALL, 5 );
 446     }
 447
 448     if (m_buttonFlags & wxPREVIEW_FIRST)
 449     {
 450         m_firstPageButton = new wxButton( this, wxID_PREVIEW_FIRST, _("|<<"), wxDefaultPosition, wxSize(smallButtonWidth,-1), 0 );
 451         item0->Add( m_firstPageButton, 0, wxALIGN_CENTRE|wxALL, 5 );
 452     }
 453
 454     if (m_buttonFlags & wxPREVIEW_PREVIOUS)
 455     {
 456         m_previousPageButton = new wxButton( this, wxID_PREVIEW_PREVIOUS, _("<<"), wxDefaultPosition, wxSize(smallButtonWidth,-1), 0 );
 457         item0->Add( m_previousPageButton, 0, wxALIGN_CENTRE|wxRIGHT|wxTOP|wxBOTTOM, 5 );
 458     }
 459
 460     if (m_buttonFlags & wxPREVIEW_NEXT)
 461     {
 462         m_nextPageButton = new wxButton( this, wxID_PREVIEW_NEXT, _(">>"), wxDefaultPosition, wxSize(smallButtonWidth,-1), 0 );
 463         item0->Add( m_nextPageButton, 0, wxALIGN_CENTRE|wxRIGHT|wxTOP|wxBOTTOM, 5 );
 464     }
 465
 466     if (m_buttonFlags & wxPREVIEW_LAST)
 467     {
 468         m_lastPageButton = new wxButton( this, wxID_PREVIEW_LAST, _(">>|"), wxDefaultPosition, wxSize(smallButtonWidth,-1), 0 );
 469         item0->Add( m_lastPageButton, 0, wxALIGN_CENTRE|wxRIGHT|wxTOP|wxBOTTOM, 5 );
 470     }
 471
 472     if (m_buttonFlags & wxPREVIEW_GOTO)
 473     {
 474         m_gotoPageButton = new wxButton( this, wxID_PREVIEW_GOTO, _("&Goto..."), wxDefaultPosition, wxDefaultSize, 0 );
 475         item0->Add( m_gotoPageButton, 0, wxALIGN_CENTRE|wxALL, 5 );
 476     }
 477
 478     if (m_buttonFlags & wxPREVIEW_ZOOM)
 479     {
 480         wxString choices[] =
 481         {
 482             wxT("10%"), wxT("15%"), wxT("20%"), wxT("25%"), wxT("30%"), wxT("35%"), wxT("40%"), wxT("45%"), wxT("50%"), wxT("55%"),
 483                 wxT("60%"), wxT("65%"), wxT("70%"), wxT("75%"), wxT("80%"), wxT("85%"), wxT("90%"), wxT("95%"), wxT("100%"), wxT("110%"),
 484                 wxT("120%"), wxT("150%"), wxT("200%")
 485         };
 486         int n = WXSIZEOF(choices);
 487
 488         m_zoomControl = new wxChoice( this, wxID_PREVIEW_ZOOM, wxDefaultPosition, wxSize(70,-1), n, choices, 0 );
 489         item0->Add( m_zoomControl, 0, wxALIGN_CENTRE|wxALL, 5 );
 490         SetZoomControl(m_printPreview->GetZoom());
 491     }
 492
 493     SetSizer(item0);
 494     item0->Fit(this);
 495 }
 496
 497 void wxPreviewControlBar::SetZoomControl(int zoom)
 498 {
 499     if (m_zoomControl)
 500     {
 501         int n, count = m_zoomControl->GetCount();
 502         long val;
 503         for (n=0; n<count; n++)
 504         {
 505             if (m_zoomControl->GetString(n).BeforeFirst(wxT('%')).ToLong(&val) &&
 506                 (val >= long(zoom)))
 507             {
 508                 m_zoomControl->SetSelection(n);
 509                 return;
 510             }
 511         }
 512
 513         m_zoomControl->SetSelection(count-1);
 514     }
 515 }
 516
 517 int wxPreviewControlBar::GetZoomControl()
 518 {
 519     if (m_zoomControl && (m_zoomControl->GetStringSelection() != wxEmptyString))
 520     {
 521         long val;
 522         if (m_zoomControl->GetStringSelection().BeforeFirst(wxT('%')).ToLong(&val))
 523             return int(val);
 524     }
 525
 526     return 0;
 527 }
 528
 529
 530 /*
 531 * Preview frame
 532 */
 533
 534 BEGIN_EVENT_TABLE(wxPreviewFrame, wxFrame)
 535     EVT_CLOSE(wxPreviewFrame::OnCloseWindow)
 536 END_EVENT_TABLE()
 537
 538 wxPreviewFrame::wxPreviewFrame(wxPrintPreviewBase *preview, wxWindow *parent, const wxString& title,
 539                                const wxPoint& pos, const wxSize& size, long style, const wxString& name):
 540 wxFrame(parent, -1, title, pos, size, style, name)
 541 {
 542     m_printPreview = preview;
 543     m_controlBar = NULL;
 544     m_previewCanvas = NULL;
 545
 546     // Give the application icon
 547 #ifdef __WXMSW__
 548     wxFrame* topFrame = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 549     if (topFrame)
 550         SetIcon(topFrame->GetIcon());
 551 #endif
 552 }
 553
 554 wxPreviewFrame::~wxPreviewFrame()
 555 {
 556 }
 557
 558 void wxPreviewFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 559 {
 560     // MakeModal doesn't work on wxMac, especially when there
 561     // are multiple top-level windows.
 562 #ifndef __WXMAC__
 563     MakeModal(FALSE);
 564 #endif
 565
 566     // Need to delete the printout and the print preview
 567     wxPrintout *printout = m_printPreview->GetPrintout();
 568     if (printout)
 569     {
 570         delete printout;
 571         m_printPreview->SetPrintout(NULL);
 572         m_printPreview->SetCanvas(NULL);
 573         m_printPreview->SetFrame(NULL);
 574     }
 575     delete m_printPreview;
 576
 577     Destroy();
 578 }
 579
 580 void wxPreviewFrame::Initialize()
 581 {
 582 #if wxUSE_STATUSBAR
 583     CreateStatusBar();
 584 #endif
 585     CreateCanvas();
 586     CreateControlBar();
 587
 588     m_printPreview->SetCanvas(m_previewCanvas);
 589     m_printPreview->SetFrame(this);
 590
 591     wxBoxSizer *item0 = new wxBoxSizer( wxVERTICAL );
 592
 593     item0->Add( m_controlBar, 0, wxGROW|wxALIGN_CENTER_VERTICAL, 5 );
 594     item0->Add( m_previewCanvas, 1, wxGROW|wxALIGN_CENTER_VERTICAL, 5 );
 595
 596     SetAutoLayout( TRUE );
 597     SetSizer( item0 );
 598
 599     // MakeModal doesn't work on wxMac, especially when there
 600     // are multiple top-level windows.
 601 #ifndef __WXMAC__
 602     MakeModal(TRUE);
 603 #endif
 604
 605     Layout();
 606
 607     m_printPreview->AdjustScrollbars(m_previewCanvas);
 608     m_previewCanvas->SetFocus();
 609     m_controlBar->SetFocus();
 610 }
 611
 612 void wxPreviewFrame::CreateCanvas()
 613 {
 614     m_previewCanvas = new wxPreviewCanvas(m_printPreview, this);
 615 }
 616
 617 void wxPreviewFrame::CreateControlBar()
 618 {
 619     long buttons = wxPREVIEW_DEFAULT;
 620     if (m_printPreview->GetPrintoutForPrinting())
 621         buttons |= wxPREVIEW_PRINT;
 622
 623     m_controlBar = new wxPreviewControlBar(m_printPreview, buttons, this, wxPoint(0, 0), wxSize(400, 40));
 624     m_controlBar->CreateButtons();
 625 }
 626
 627 /*
 628 * Print preview
 629 */
 630
 631 wxPrintPreviewBase::wxPrintPreviewBase(wxPrintout *printout,
 632                                        wxPrintout *printoutForPrinting,
 633                                        wxPrintData *data)
 634 {
 635     if (data)
 636         m_printDialogData = (*data);
 637
 638     Init(printout, printoutForPrinting);
 639 }
 640
 641 wxPrintPreviewBase::wxPrintPreviewBase(wxPrintout *printout,
 642                                        wxPrintout *printoutForPrinting,
 643                                        wxPrintDialogData *data)
 644 {
 645     if (data)
 646         m_printDialogData = (*data);
 647
 648     Init(printout, printoutForPrinting);
 649 }
 650
 651 void wxPrintPreviewBase::Init(wxPrintout *printout,
 652                               wxPrintout *printoutForPrinting)
 653 {
 654     m_isOk = TRUE;
 655     m_previewPrintout = printout;
 656     if (m_previewPrintout)
 657         m_previewPrintout->SetIsPreview(TRUE);
 658
 659     m_printPrintout = printoutForPrinting;
 660
 661     m_previewCanvas = NULL;
 662     m_previewFrame = NULL;
 663     m_previewBitmap = NULL;
 664     m_currentPage = 1;
 665     m_currentZoom = 70;
 666     m_topMargin = 40;
 667     m_leftMargin = 40;
 668     m_pageWidth = 0;
 669     m_pageHeight = 0;
 670     m_printingPrepared = FALSE;
 671     m_minPage = 1;
 672     m_maxPage = 1;
 673 }
 674
 675 wxPrintPreviewBase::~wxPrintPreviewBase()
 676 {
 677     if (m_previewPrintout)
 678         delete m_previewPrintout;
 679     if (m_previewBitmap)
 680         delete m_previewBitmap;
 681     if (m_printPrintout)
 682         delete m_printPrintout;
 683 }
 684
 685 bool wxPrintPreviewBase::SetCurrentPage(int pageNum)
 686 {
 687     if (m_currentPage == pageNum)
 688         return TRUE;
 689
 690     m_currentPage = pageNum;
 691     if (m_previewBitmap)
 692     {
 693         delete m_previewBitmap;
 694         m_previewBitmap = NULL;
 695     }
 696
 697     if (m_previewCanvas)
 698     {
 699         AdjustScrollbars(m_previewCanvas);
 700
 701         if (!RenderPage(pageNum))
 702             return FALSE;
 703         m_previewCanvas->Refresh();
 704         m_previewCanvas->SetFocus();
 705     }
 706     return TRUE;
 707 }
 708
 709 bool wxPrintPreviewBase::PaintPage(wxPreviewCanvas *canvas, wxDC& dc)
 710 {
 711     DrawBlankPage(canvas, dc);
 712
 713     if (!m_previewBitmap)
 714         if (!RenderPage(m_currentPage))
 715             return FALSE;
 716
 717     if (!m_previewBitmap)
 718         return FALSE;
 719
 720     if (!canvas)
 721         return FALSE;
 722
 723     int canvasWidth, canvasHeight;
 724     canvas->GetSize(&canvasWidth, &canvasHeight);
 725
 726     double zoomScale = ((float)m_currentZoom/(float)100);
 727     double actualWidth = (zoomScale*m_pageWidth*m_previewScale);
 728     //  float actualHeight = (float)(zoomScale*m_pageHeight*m_previewScale);
 729
 730     int x = (int) ((canvasWidth - actualWidth)/2.0);
 731     if (x < m_leftMargin)
 732         x = m_leftMargin;
 733     int y = m_topMargin;
 734
 735     wxMemoryDC temp_dc;
 736     temp_dc.SelectObject(*m_previewBitmap);
 737
 738     dc.Blit(x, y, m_previewBitmap->GetWidth(), m_previewBitmap->GetHeight(), &temp_dc, 0, 0);
 739
 740     temp_dc.SelectObject(wxNullBitmap);
 741
 742     return TRUE;
 743 }
 744
 745 // Adjusts the scrollbars for the current scale
 746 void wxPrintPreviewBase::AdjustScrollbars(wxPreviewCanvas *canvas)
 747 {
 748     if (!canvas)
 749         return ;
 750
 751     int canvasWidth, canvasHeight;
 752     canvas->GetSize(&canvasWidth, &canvasHeight);
 753
 754     double zoomScale = ((float)m_currentZoom/(float)100);
 755     double actualWidth = (zoomScale*m_pageWidth*m_previewScale);
 756     double actualHeight = (zoomScale*m_pageHeight*m_previewScale);
 757
 758     // Set the scrollbars appropriately
 759     int totalWidth = (int)(actualWidth + 2*m_leftMargin);
 760     int totalHeight = (int)(actualHeight + 2*m_topMargin);
 761     int scrollUnitsX = totalWidth/10;
 762     int scrollUnitsY = totalHeight/10;
 763     wxSize virtualSize = canvas->GetVirtualSize();
 764     if (virtualSize.GetWidth() != totalWidth || virtualSize.GetHeight() != totalHeight)
 765         canvas->SetScrollbars(10, 10, scrollUnitsX, scrollUnitsY, 0, 0, TRUE);
 766 }
 767
 768 bool wxPrintPreviewBase::RenderPage(int pageNum)
 769 {
 770     wxBusyCursor busy;
 771
 772     int canvasWidth, canvasHeight;
 773
 774     if (!m_previewCanvas)
 775     {
 776         wxFAIL_MSG(_T("wxPrintPreviewBase::RenderPage: must use wxPrintPreviewBase::SetCanvas to let me know about the canvas!"));
 777
 778         return FALSE;
 779     }
 780     m_previewCanvas->GetSize(&canvasWidth, &canvasHeight);
 781
 782     double zoomScale = (m_currentZoom/100.0);
 783     int actualWidth = (int)(zoomScale*m_pageWidth*m_previewScale);
 784     int actualHeight = (int)(zoomScale*m_pageHeight*m_previewScale);
 785
 786     if (!m_previewBitmap)
 787     {
 788         m_previewBitmap = new wxBitmap((int)actualWidth, (int)actualHeight);
 789         if (!m_previewBitmap || !m_previewBitmap->Ok())
 790         {
 791             if (m_previewBitmap) {
 792                 delete m_previewBitmap;
 793                 m_previewBitmap = NULL;
 794             }
 795             wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK);
 796             return FALSE;
 797         }
 798     }
 799
 800     wxMemoryDC memoryDC;
 801     memoryDC.SelectObject(*m_previewBitmap);
 802
 803     memoryDC.Clear();
 804
 805     m_previewPrintout->SetDC(&memoryDC);
 806     m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
 807
 808     // Need to delay OnPreparePrinting until here, so we have enough information.
 809     if (!m_printingPrepared)
 810     {
 811         m_previewPrintout->OnPreparePrinting();
 812         int selFrom, selTo;
 813         m_previewPrintout->GetPageInfo(&m_minPage, &m_maxPage, &selFrom, &selTo);
 814         m_printingPrepared = TRUE;
 815     }
 816
 817     m_previewPrintout->OnBeginPrinting();
 818
 819     if (!m_previewPrintout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
 820     {
 821         wxMessageBox(_("Could not start document preview."), _("Print Preview Failure"), wxOK);
 822
 823         memoryDC.SelectObject(wxNullBitmap);
 824
 825         delete m_previewBitmap;
 826         m_previewBitmap = NULL;
 827         return FALSE;
 828     }
 829
 830     m_previewPrintout->OnPrintPage(pageNum);
 831     m_previewPrintout->OnEndDocument();
 832     m_previewPrintout->OnEndPrinting();
 833
 834     m_previewPrintout->SetDC(NULL);
 835
 836     memoryDC.SelectObject(wxNullBitmap);
 837
 838 #if wxUSE_STATUSBAR
 839     wxString status;
 840     if (m_maxPage != 0)
 841                 status = wxString::Format(_("Page %d of %d"), pageNum, m_maxPage);
 842     else
 843                 status = wxString::Format(_("Page %d"), pageNum);
 844
 845     if (m_previewFrame)
 846         m_previewFrame->SetStatusText(status);
 847 #endif
 848
 849     return TRUE;
 850 }
 851
 852
 853 bool wxPrintPreviewBase::DrawBlankPage(wxPreviewCanvas *canvas, wxDC& dc)
 854 {
 855     int canvasWidth, canvasHeight;
 856     canvas->GetSize(&canvasWidth, &canvasHeight);
 857
 858     float zoomScale = (float)((float)m_currentZoom/(float)100);
 859     float actualWidth = zoomScale*m_pageWidth*m_previewScale;
 860     float actualHeight = zoomScale*m_pageHeight*m_previewScale;
 861
 862     float x = (float)((canvasWidth - actualWidth)/2.0);
 863     if (x < m_leftMargin)
 864         x = (float)m_leftMargin;
 865     float y = (float)m_topMargin;
 866
 867     // Draw shadow, allowing for 1-pixel border AROUND the actual page
 868     int shadowOffset = 4;
 869     dc.SetPen(*wxBLACK_PEN);
 870     dc.SetBrush(*wxBLACK_BRUSH);
 871     /*
 872     dc.DrawRectangle((int)(x-1 + shadowOffset), (int)(y-1 + shadowOffset), (int)(actualWidth+2), (int)(actualHeight+2));
 873     */
 874     dc.DrawRectangle((int)(x + shadowOffset), (int)(y + actualHeight+1), (int)(actualWidth), shadowOffset);
 875     dc.DrawRectangle((int)(x + actualWidth), (int)(y + shadowOffset), shadowOffset, (int)(actualHeight));
 876
 877     // Draw blank page allowing for 1-pixel border AROUND the actual page
 878     dc.SetPen(*wxBLACK_PEN);
 879     dc.SetBrush(*wxWHITE_BRUSH);
 880
 881     /*
 882     wxRegion update_region = canvas->GetUpdateRegion();
 883     wxRect r = update_region.GetBox();
 884
 885       printf( "x: %d y: %d w: %d h: %d.\n", (int)r.x, (int)r.y, (int)r.width, (int)r.height );
 886     */
 887
 888     dc.DrawRectangle((int)(x-2), (int)(y-1), (int)(actualWidth+3), (int)(actualHeight+2));
 889
 890     return TRUE;
 891 }
 892
 893 void wxPrintPreviewBase::SetZoom(int percent)
 894 {
 895     if (m_currentZoom == percent)
 896         return;
 897
 898     m_currentZoom = percent;
 899     if (m_previewBitmap)
 900     {
 901         delete m_previewBitmap;
 902         m_previewBitmap = NULL;
 903     }
 904
 905     if (m_previewCanvas)
 906     {
 907         AdjustScrollbars(m_previewCanvas);
 908         RenderPage(m_currentPage);
 909         ((wxScrolledWindow *) m_previewCanvas)->Scroll(0, 0);
 910         m_previewCanvas->ClearBackground();
 911         m_previewCanvas->Refresh();
 912         m_previewCanvas->SetFocus();
 913     }
 914 }
 915
 916 #endif // wxUSE_PRINTING_ARCHITECTURE