/* * File: printing.cc * Purpose: Printing demo for wxWindows class library * Author: Julian Smart * Created: 1995 * Updated: * Copyright: (c) 1995, AIAI, University of Edinburgh */ /* static const char sccsid[] = "%W% %G%"; */ #ifdef __GNUG__ #pragma implementation #endif // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif #ifndef WX_PRECOMP #include "wx/wx.h" #endif #if !wxUSE_PRINTING_ARCHITECTURE #error You must set wxUSE_PRINTING_ARCHITECTURE to 1 in setup.h to compile this demo. #endif // Set this to 1 if you want to test PostScript printing under MSW. // However, you'll also need to edit src/msw/makefile.nt. #define wxTEST_POSTSCRIPT_IN_MSW 0 #include #include "wx/metafile.h" #include "wx/print.h" #include "wx/printdlg.h" #include "wx/accel.h" #if wxTEST_POSTSCRIPT_IN_MSW #include "wx/generic/printps.h" #include "wx/generic/prntdlgg.h" #endif #include "printing.h" #ifndef __WXMSW__ #include "mondrian.xpm" #endif // Declare a frame MyFrame *frame = (MyFrame *) NULL; // int orientation = wxPORTRAIT; // Global print data, to remember settings during the session wxPrintData *g_printData = (wxPrintData*) NULL ; // Global page setup data wxPageSetupData* g_pageSetupData = (wxPageSetupData*) NULL; // Main proc IMPLEMENT_APP(MyApp) // Writes a header on a page. Margin units are in millimetres. bool WritePageHeader(wxPrintout *printout, wxDC *dc, char *text, float mmToLogical); MyApp::MyApp() { } // The `main program' equivalent, creating the windows and returning the // main frame bool MyApp::OnInit(void) { m_testFont = new wxFont(10, wxSWISS, wxNORMAL, wxNORMAL); g_printData = new wxPrintData; g_pageSetupData = new wxPageSetupDialogData; // Compatibility with old system. In fact, we might keep wxThePrintSetupData // just for useful default values which we can optionally assign to our // own print data object. #if defined(__WXGTK__) || defined(__WXMOTIF__) (*g_printData) = * wxThePrintSetupData; #endif // Create the main frame window frame = new MyFrame((wxFrame *) NULL, (char *) "wxWindows Printing Demo", wxPoint(0, 0), wxSize(400, 400)); // Give it a status line frame->CreateStatusBar(2); // Load icon and bitmap frame->SetIcon( wxICON( mondrian) ); // Make a menubar wxMenu *file_menu = new wxMenu; file_menu->Append(WXPRINT_PRINT, "&Print...", "Print"); file_menu->Append(WXPRINT_PRINT_SETUP, "Print &Setup...", "Setup printer properties"); file_menu->Append(WXPRINT_PAGE_SETUP, "Page Set&up...", "Page setup"); file_menu->Append(WXPRINT_PREVIEW, "Print Pre&view", "Preview"); // Accelerators wxAcceleratorEntry entries[1]; entries[0].Set(wxACCEL_CTRL, (int) 'V', WXPRINT_PREVIEW); wxAcceleratorTable accel(1, entries); frame->SetAcceleratorTable(accel); #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW file_menu->AppendSeparator(); file_menu->Append(WXPRINT_PRINT_PS, "Print PostScript...", "Print (PostScript)"); file_menu->Append(WXPRINT_PRINT_SETUP_PS, "Print Setup PostScript...", "Setup printer properties (PostScript)"); file_menu->Append(WXPRINT_PAGE_SETUP_PS, "Page Setup PostScript...", "Page setup (PostScript)"); file_menu->Append(WXPRINT_PREVIEW_PS, "Print Preview PostScript", "Preview (PostScript)"); #endif file_menu->AppendSeparator(); file_menu->Append(WXPRINT_QUIT, "E&xit", "Exit program"); wxMenu *help_menu = new wxMenu; help_menu->Append(WXPRINT_ABOUT, "&About", "About this demo"); wxMenuBar *menu_bar = new wxMenuBar; menu_bar->Append(file_menu, "&File"); menu_bar->Append(help_menu, "&Help"); // Associate the menu bar with the frame frame->SetMenuBar(menu_bar); MyCanvas *canvas = new MyCanvas(frame, wxPoint(0, 0), wxSize(100, 100), wxRETAINED|wxHSCROLL|wxVSCROLL); // Give it scrollbars: the virtual canvas is 20 * 50 = 1000 pixels in each direction canvas->SetScrollbars(20, 20, 50, 50); frame->canvas = canvas; frame->Centre(wxBOTH); frame->Show(TRUE); frame->SetStatusText("Printing demo"); SetTopWindow(frame); return TRUE; } int MyApp::OnExit() { delete wxGetApp().m_testFont; delete g_printData; delete g_pageSetupData; return 1; } BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(WXPRINT_QUIT, MyFrame::OnExit) EVT_MENU(WXPRINT_PRINT, MyFrame::OnPrint) EVT_MENU(WXPRINT_PREVIEW, MyFrame::OnPrintPreview) EVT_MENU(WXPRINT_PRINT_SETUP, MyFrame::OnPrintSetup) EVT_MENU(WXPRINT_PAGE_SETUP, MyFrame::OnPageSetup) EVT_MENU(WXPRINT_ABOUT, MyFrame::OnPrintAbout) #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW EVT_MENU(WXPRINT_PRINT_PS, MyFrame::OnPrintPS) EVT_MENU(WXPRINT_PREVIEW_PS, MyFrame::OnPrintPreviewPS) EVT_MENU(WXPRINT_PRINT_SETUP_PS, MyFrame::OnPrintSetupPS) EVT_MENU(WXPRINT_PAGE_SETUP_PS, MyFrame::OnPageSetupPS) #endif END_EVENT_TABLE() // Define my frame constructor MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size): wxFrame(frame, -1, title, pos, size) { canvas = (MyCanvas *) NULL; } void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event)) { Close(TRUE); } void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event)) { wxPrintDialogData printDialogData(* g_printData); wxPrinter printer(& printDialogData); MyPrintout printout("My printout"); if (!printer.Print(this, &printout, TRUE)) wxMessageBox("There was a problem printing.\nPerhaps your current printer is not set correctly?", "Printing", wxOK); else { (*g_printData) = printer.GetPrintDialogData().GetPrintData(); } } void MyFrame::OnPrintPreview(wxCommandEvent& WXUNUSED(event)) { // Pass two printout objects: for preview, and possible printing. wxPrintDialogData printDialogData(* g_printData); wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printDialogData); if (!preview->Ok()) { delete preview; wxMessageBox("There was a problem previewing.\nPerhaps your current printer is not set correctly?", "Previewing", wxOK); return; } wxPreviewFrame *frame = new wxPreviewFrame(preview, this, "Demo Print Preview", wxPoint(100, 100), wxSize(600, 650)); frame->Centre(wxBOTH); frame->Initialize(); frame->Show(TRUE); } void MyFrame::OnPrintSetup(wxCommandEvent& WXUNUSED(event)) { wxPrintDialogData printDialogData(* g_printData); wxPrintDialog printerDialog(this, & printDialogData); printerDialog.GetPrintDialogData().SetSetupDialog(TRUE); printerDialog.ShowModal(); (*g_printData) = printerDialog.GetPrintDialogData().GetPrintData(); } void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event)) { (*g_pageSetupData) = * g_printData; wxPageSetupDialog pageSetupDialog(this, g_pageSetupData); pageSetupDialog.ShowModal(); (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData(); (*g_pageSetupData) = pageSetupDialog.GetPageSetupData(); } #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW void MyFrame::OnPrintPS(wxCommandEvent& WXUNUSED(event)) { wxPostScriptPrinter printer(g_printData); MyPrintout printout("My printout"); printer.Print(this, &printout, TRUE); (*g_printData) = printer.GetPrintData(); } void MyFrame::OnPrintPreviewPS(wxCommandEvent& WXUNUSED(event)) { // Pass two printout objects: for preview, and possible printing. wxPrintDialogData printDialogData(* g_printData); wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printDialogData); wxPreviewFrame *frame = new wxPreviewFrame(preview, this, "Demo Print Preview", wxPoint(100, 100), wxSize(600, 650)); frame->Centre(wxBOTH); frame->Initialize(); frame->Show(TRUE); } void MyFrame::OnPrintSetupPS(wxCommandEvent& WXUNUSED(event)) { wxPrintDialogData printDialogData(* g_printData); wxGenericPrintDialog printerDialog(this, & printDialogData); printerDialog.GetPrintDialogData().SetSetupDialog(TRUE); printerDialog.ShowModal(); (*g_printData) = printerDialog.GetPrintDialogData().GetPrintData(); } void MyFrame::OnPageSetupPS(wxCommandEvent& WXUNUSED(event)) { (*g_pageSetupData) = * g_printData; wxGenericPageSetupDialog pageSetupDialog(this, g_pageSetupData); pageSetupDialog.ShowModal(); (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData(); (*g_pageSetupData) = pageSetupDialog.GetPageSetupData(); } #endif void MyFrame::OnPrintAbout(wxCommandEvent& WXUNUSED(event)) { (void)wxMessageBox("wxWindows printing demo\nAuthor: Julian Smart julian.smart@ukonline.co.uk", "About wxWindows printing demo", wxOK|wxCENTRE); } void MyFrame::Draw(wxDC& dc) { dc.SetFont(* wxGetApp().m_testFont); dc.SetBackgroundMode(wxTRANSPARENT); dc.SetBrush(* wxCYAN_BRUSH); dc.SetPen(* wxRED_PEN); dc.DrawRectangle(0, 30, 200, 100); dc.DrawText("Rectangle 200 by 100", 40, 40); dc.DrawEllipse(50, 140, 100, 50); dc.DrawText("Test message: this is in 10 point text", 10, 180); dc.SetPen(* wxBLACK_PEN); dc.DrawLine(0, 0, 200, 200); dc.DrawLine(200, 0, 0, 200); wxIcon my_icon = wxICON(mondrian) ; dc.DrawIcon( my_icon, 100, 100); } void MyFrame::OnSize(wxSizeEvent& event ) { wxFrame::OnSize(event); } BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) EVT_MOUSE_EVENTS(MyCanvas::OnEvent) END_EVENT_TABLE() // Define a constructor for my canvas MyCanvas::MyCanvas(wxFrame *frame, const wxPoint& pos, const wxSize& size, long style): wxScrolledWindow(frame, -1, pos, size, style) { SetBackgroundColour(* wxWHITE); } MyCanvas::~MyCanvas(void) { } // Define the repainting behaviour void MyCanvas::OnDraw(wxDC& dc) { frame->Draw(dc); } void MyCanvas::OnEvent(wxMouseEvent& WXUNUSED(event)) { } bool MyPrintout::OnPrintPage(int page) { wxDC *dc = GetDC(); if (dc) { if (page == 1) DrawPageOne(dc); else if (page == 2) DrawPageTwo(dc); dc->SetDeviceOrigin(0, 0); dc->SetUserScale(1.0, 1.0); char buf[200]; sprintf(buf, "PAGE %d", page); dc->DrawText(buf, 10, 10); return TRUE; } else return FALSE; } bool MyPrintout::OnBeginDocument(int startPage, int endPage) { if (!wxPrintout::OnBeginDocument(startPage, endPage)) return FALSE; return TRUE; } void MyPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo) { *minPage = 1; *maxPage = 2; *selPageFrom = 1; *selPageTo = 2; } bool MyPrintout::HasPage(int pageNum) { return (pageNum == 1 || pageNum == 2); } void MyPrintout::DrawPageOne(wxDC *dc) { /* You might use THIS code if you were scaling * graphics of known size to fit on the page. */ int w, h; // We know the graphic is 200x200. If we didn't know this, // we'd need to calculate it. float maxX = 200; float maxY = 200; // Let's have at least 50 device units margin float marginX = 50; float marginY = 50; // Add the margin to the graphic size maxX += (2*marginX); maxY += (2*marginY); // Get the size of the DC in pixels dc->GetSize(&w, &h); // Calculate a suitable scaling factor float scaleX=(float)(w/maxX); float scaleY=(float)(h/maxY); // Use x or y scaling factor, whichever fits on the DC float actualScale = wxMin(scaleX,scaleY); // Calculate the position on the DC for centring the graphic float posX = (float)((w - (200*actualScale))/2.0); float posY = (float)((h - (200*actualScale))/2.0); // Set the scale and origin dc->SetUserScale(actualScale, actualScale); dc->SetDeviceOrigin( (long)posX, (long)posY ); frame->Draw(*dc); } void MyPrintout::DrawPageTwo(wxDC *dc) { /* You might use THIS code to set the printer DC to ROUGHLY reflect * the screen text size. This page also draws lines of actual length 5cm * on the page. */ // Get the logical pixels per inch of screen and printer int ppiScreenX, ppiScreenY; GetPPIScreen(&ppiScreenX, &ppiScreenY); int ppiPrinterX, ppiPrinterY; GetPPIPrinter(&ppiPrinterX, &ppiPrinterY); // This scales the DC so that the printout roughly represents the // the screen scaling. The text point size _should_ be the right size // but in fact is too small for some reason. This is a detail that will // need to be addressed at some point but can be fudged for the // moment. float scale = (float)((float)ppiPrinterX/(float)ppiScreenX); // Now we have to check in case our real page size is reduced // (e.g. because we're drawing to a print preview memory DC) int pageWidth, pageHeight; int w, h; dc->GetSize(&w, &h); GetPageSizePixels(&pageWidth, &pageHeight); // If printer pageWidth == current DC width, then this doesn't // change. But w might be the preview bitmap width, so scale down. float overallScale = scale * (float)(w/(float)pageWidth); dc->SetUserScale(overallScale, overallScale); // Calculate conversion factor for converting millimetres into // logical units. // There are approx. 25.1 mm to the inch. There are ppi // device units to the inch. Therefore 1 mm corresponds to // ppi/25.1 device units. We also divide by the // screen-to-printer scaling factor, because we need to // unscale to pass logical units to DrawLine. // Draw 50 mm by 50 mm L shape float logUnitsFactor = (float)(ppiPrinterX/(scale*25.1)); float logUnits = (float)(50*logUnitsFactor); dc->SetPen(* wxBLACK_PEN); dc->DrawLine(50, 250, (long)(50.0 + logUnits), 250); dc->DrawLine(50, 250, 50, (long)(250.0 + logUnits)); dc->SetFont(* wxGetApp().m_testFont); dc->SetBackgroundMode(wxTRANSPARENT); dc->DrawText("Some test text", 200, 200 ); // TESTING int leftMargin = 20; int rightMargin = 20; int topMargin = 20; int bottomMargin = 20; int pageWidthMM, pageHeightMM; GetPageSizeMM(&pageWidthMM, &pageHeightMM); float leftMarginLogical = (float)(logUnitsFactor*leftMargin); float topMarginLogical = (float)(logUnitsFactor*topMargin); float bottomMarginLogical = (float)(logUnitsFactor*(pageHeightMM - bottomMargin)); float rightMarginLogical = (float)(logUnitsFactor*(pageWidthMM - rightMargin)); dc->SetPen(* wxRED_PEN); dc->DrawLine( (long)leftMarginLogical, (long)topMarginLogical, (long)rightMarginLogical, (long)topMarginLogical); dc->DrawLine( (long)leftMarginLogical, (long)bottomMarginLogical, (long)rightMarginLogical, (long)bottomMarginLogical); WritePageHeader(this, dc, "A header", logUnitsFactor); } // Writes a header on a page. Margin units are in millimetres. bool WritePageHeader(wxPrintout *printout, wxDC *dc, char *text, float mmToLogical) { /* static wxFont *headerFont = (wxFont *) NULL; if (!headerFont) { headerFont = wxTheFontList->FindOrCreateFont(16, wxSWISS, wxNORMAL, wxBOLD); } dc->SetFont(headerFont); */ int pageWidthMM, pageHeightMM; printout->GetPageSizeMM(&pageWidthMM, &pageHeightMM); int leftMargin = 10; int topMargin = 10; int rightMargin = 10; float leftMarginLogical = (float)(mmToLogical*leftMargin); float topMarginLogical = (float)(mmToLogical*topMargin); float rightMarginLogical = (float)(mmToLogical*(pageWidthMM - rightMargin)); long xExtent, yExtent; dc->GetTextExtent(text, &xExtent, &yExtent); float xPos = (float)(((((pageWidthMM - leftMargin - rightMargin)/2.0)+leftMargin)*mmToLogical) - (xExtent/2.0)); dc->DrawText(text, (long)xPos, (long)topMarginLogical); dc->SetPen(* wxBLACK_PEN); dc->DrawLine( (long)leftMarginLogical, (long)(topMarginLogical+yExtent), (long)rightMarginLogical, (long)topMarginLogical+yExtent ); return TRUE; }