X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/eba330067e87ccec9c8af7bd8b1023044e6d39e3..cfcc02a8a4f019e3846b73660209080602e44967:/samples/printing/printing.cpp diff --git a/samples/printing/printing.cpp b/samples/printing/printing.cpp index 0f6b0ccf8d..0b4c31accc 100644 --- a/samples/printing/printing.cpp +++ b/samples/printing/printing.cpp @@ -1,6 +1,6 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: printing.cpp -// Purpose: Printing demo for wxWindows +// Name: samples/printing.cpp +// Purpose: Printing demo for wxWidgets // Author: Julian Smart // Modified by: // Created: 1995 @@ -9,10 +9,6 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation -#endif - // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" @@ -25,7 +21,7 @@ #endif #if !wxUSE_PRINTING_ARCHITECTURE -#error You must set wxUSE_PRINTING_ARCHITECTURE to 1 in setup.h to compile this demo. +#error "You must set wxUSE_PRINTING_ARCHITECTURE to 1 in setup.h, and recompile the library." #endif // Set this to 1 if you want to test PostScript printing under MSW. @@ -36,7 +32,7 @@ #include "wx/metafile.h" #include "wx/print.h" #include "wx/printdlg.h" - +#include "wx/image.h" #include "wx/accel.h" #if wxTEST_POSTSCRIPT_IN_MSW @@ -44,6 +40,14 @@ #include "wx/generic/prntdlgg.h" #endif +#if wxUSE_GRAPHICS_CONTEXT +#include "wx/graphics.h" +#endif + +#ifdef __WXMAC__ +#include "wx/mac/printdlg.h" +#endif + #include "printing.h" #ifndef __WXMSW__ @@ -58,44 +62,60 @@ MyFrame *frame = (MyFrame *) NULL; wxPrintData *g_printData = (wxPrintData*) NULL ; // Global page setup data -wxPageSetupData* g_pageSetupData = (wxPageSetupData*) NULL; +wxPageSetupDialogData* g_pageSetupData = (wxPageSetupDialogData*) 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() -{ -} +bool WritePageHeader(wxPrintout *printout, wxDC *dc, const wxChar *text, float mmToLogical); // The `main program' equivalent, creating the windows and returning the // main frame + bool MyApp::OnInit(void) { - m_testFont = new wxFont(10, wxSWISS, wxNORMAL, wxNORMAL); - + if ( !wxApp::OnInit() ) + return false; + + wxInitAllImageHandlers(); + + m_testFont.Create(10, wxSWISS, wxNORMAL, wxNORMAL); + g_printData = new wxPrintData; + // You could set an initial paper size here +// g_printData->SetPaperId(wxPAPER_LETTER); // for Americans +// g_printData->SetPaperId(wxPAPER_A4); // for everyone else + g_pageSetupData = new wxPageSetupDialogData; - + // copy over initial paper size from print record + (*g_pageSetupData) = *g_printData; + // Set some initial page margins in mm. + g_pageSetupData->SetMarginTopLeft(wxPoint(15, 15)); + g_pageSetupData->SetMarginBottomRight(wxPoint(15, 15)); + // Create the main frame window - frame = new MyFrame((wxFrame *) NULL, (char *) "wxWindows Printing Demo", wxPoint(0, 0), wxSize(400, 400)); - + frame = new MyFrame((wxFrame *) NULL, _T("wxWidgets Printing Demo"), + wxPoint(0, 0), wxSize(400, 400)); + +#if wxUSE_STATUSBAR // Give it a status line frame->CreateStatusBar(2); - +#endif // wxUSE_STATUSBAR + // 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"); - + + file_menu->Append(WXPRINT_PRINT, _T("&Print..."), _T("Print")); + file_menu->Append(WXPRINT_PAGE_SETUP, _T("Page Set&up..."), _T("Page setup")); +#ifdef __WXMAC__ + file_menu->Append(WXPRINT_PAGE_MARGINS, _T("Page Margins..."), _T("Page margins")); +#endif + file_menu->Append(WXPRINT_PREVIEW, _T("Print Pre&view"), _T("Preview")); + #if wxUSE_ACCEL // Accelerators wxAcceleratorEntry entries[1]; @@ -106,45 +126,49 @@ bool MyApp::OnInit(void) #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)"); + file_menu->Append(WXPRINT_PRINT_PS, _T("Print PostScript..."), _T("Print (PostScript)")); + file_menu->Append(WXPRINT_PAGE_SETUP_PS, _T("Page Setup PostScript..."), _T("Page setup (PostScript)")); + file_menu->Append(WXPRINT_PREVIEW_PS, _T("Print Preview PostScript"), _T("Preview (PostScript)")); #endif + file_menu->AppendSeparator(); - file_menu->Append(WXPRINT_QUIT, "E&xit", "Exit program"); - + file_menu->Append(WXPRINT_ANGLEUP, _T("Angle up\tAlt-U"), _T("Raise rotated text angle")); + file_menu->Append(WXPRINT_ANGLEDOWN, _T("Angle down\tAlt-D"), _T("Lower rotated text angle")); + file_menu->AppendSeparator(); + file_menu->Append(WXPRINT_QUIT, _T("E&xit"), _T("Exit program")); + wxMenu *help_menu = new wxMenu; - help_menu->Append(WXPRINT_ABOUT, "&About", "About this demo"); - + help_menu->Append(WXPRINT_ABOUT, _T("&About"), _T("About this demo")); + wxMenuBar *menu_bar = new wxMenuBar; - - menu_bar->Append(file_menu, "&File"); - menu_bar->Append(help_menu, "&Help"); - + + menu_bar->Append(file_menu, _T("&File")); + menu_bar->Append(help_menu, _T("&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"); - + frame->Show(); + +#if wxUSE_STATUSBAR + frame->SetStatusText(_T("Printing demo")); +#endif // wxUSE_STATUSBAR + SetTopWindow(frame); - - return TRUE; + + return true; } int MyApp::OnExit() { - delete wxGetApp().m_testFont; delete g_printData; delete g_pageSetupData; return 1; @@ -154,27 +178,40 @@ 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 +#ifdef __WXMAC__ +EVT_MENU(WXPRINT_PAGE_MARGINS, MyFrame::OnPageMargins) +#endif +EVT_MENU(WXPRINT_ANGLEUP, MyFrame::OnAngleUp) +EVT_MENU(WXPRINT_ANGLEDOWN, MyFrame::OnAngleDown) 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) +wxFrame(frame, wxID_ANY, title, pos, size) { - canvas = (MyCanvas *) NULL; + canvas = NULL; + m_angle = 30; +#if 0 + wxImage image( wxT("test.jpg") ); + image.SetAlpha(); + int i,j; + for (i = 0; i < image.GetWidth(); i++) + for (j = 0; j < image.GetHeight(); j++) + image.SetAlpha( i, j, 50 ); + m_bitmap = image; +#endif } void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event)) { - Close(TRUE); + Close(true /*force closing*/); } void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event)) @@ -182,13 +219,13 @@ void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event)) wxPrintDialogData printDialogData(* g_printData); wxPrinter printer(& printDialogData); - MyPrintout printout("My printout"); - if (!printer.Print(this, &printout, TRUE)) + MyPrintout printout(_T("My printout")); + if (!printer.Print(this, &printout, true /*prompt*/)) { if (wxPrinter::GetLastError() == wxPRINTER_ERROR) - wxMessageBox("There was a problem printing.\nPerhaps your current printer is not set correctly?", "Printing", wxOK); + wxMessageBox(_T("There was a problem printing.\nPerhaps your current printer is not set correctly?"), _T("Printing"), wxOK); else - wxMessageBox("You canceled printing", "Printing", wxOK); + wxMessageBox(_T("You canceled printing"), _T("Printing"), wxOK); } else { @@ -204,44 +241,33 @@ void MyFrame::OnPrintPreview(wxCommandEvent& WXUNUSED(event)) if (!preview->Ok()) { delete preview; - wxMessageBox("There was a problem previewing.\nPerhaps your current printer is not set correctly?", "Previewing", wxOK); + wxMessageBox(_T("There was a problem previewing.\nPerhaps your current printer is not set correctly?"), _T("Previewing"), wxOK); return; } - - wxPreviewFrame *frame = new wxPreviewFrame(preview, this, "Demo Print Preview", wxPoint(100, 100), wxSize(600, 650)); + + wxPreviewFrame *frame = new wxPreviewFrame(preview, this, _T("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(); + frame->Show(); } void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event)) { - (*g_pageSetupData) = * g_printData; + (*g_pageSetupData) = *g_printData; wxPageSetupDialog pageSetupDialog(this, g_pageSetupData); pageSetupDialog.ShowModal(); - - (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData(); - (*g_pageSetupData) = pageSetupDialog.GetPageSetupData(); + + (*g_printData) = pageSetupDialog.GetPageSetupDialogData().GetPrintData(); + (*g_pageSetupData) = pageSetupDialog.GetPageSetupDialogData(); } #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); + MyPrintout printout(_T("My printout")); + printer.Print(this, &printout, true/*prompt*/); (*g_printData) = printer.GetPrintData(); } @@ -251,74 +277,171 @@ 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)); + wxPreviewFrame *frame = new wxPreviewFrame(preview, this, _T("Demo Print Preview"), wxPoint(100, 100), wxSize(600, 650)); frame->Centre(wxBOTH); frame->Initialize(); - frame->Show(TRUE); + frame->Show(); } -void MyFrame::OnPrintSetupPS(wxCommandEvent& WXUNUSED(event)) +void MyFrame::OnPageSetupPS(wxCommandEvent& WXUNUSED(event)) { - wxPrintDialogData printDialogData(* g_printData); - wxGenericPrintDialog printerDialog(this, & printDialogData); + (*g_pageSetupData) = * g_printData; - printerDialog.GetPrintDialogData().SetSetupDialog(TRUE); - printerDialog.ShowModal(); + wxGenericPageSetupDialog pageSetupDialog(this, g_pageSetupData); + pageSetupDialog.ShowModal(); - (*g_printData) = printerDialog.GetPrintDialogData().GetPrintData(); + (*g_printData) = pageSetupDialog.GetPageSetupDialogData().GetPrintData(); + (*g_pageSetupData) = pageSetupDialog.GetPageSetupDialogData(); } +#endif -void MyFrame::OnPageSetupPS(wxCommandEvent& WXUNUSED(event)) + +#ifdef __WXMAC__ +void MyFrame::OnPageMargins(wxCommandEvent& WXUNUSED(event)) { - (*g_pageSetupData) = * g_printData; + (*g_pageSetupData) = *g_printData; - wxGenericPageSetupDialog pageSetupDialog(this, g_pageSetupData); - pageSetupDialog.ShowModal(); + wxMacPageMarginsDialog pageMarginsDialog(this, g_pageSetupData); + pageMarginsDialog.ShowModal(); - (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData(); - (*g_pageSetupData) = pageSetupDialog.GetPageSetupData(); + (*g_printData) = pageMarginsDialog.GetPageSetupDialogData().GetPrintData(); + (*g_pageSetupData) = pageMarginsDialog.GetPageSetupDialogData(); } #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)wxMessageBox(_T("wxWidgets printing demo\nAuthor: Julian Smart"), + _T("About wxWidgets printing demo"), wxOK|wxCENTRE); +} + +void MyFrame::OnAngleUp(wxCommandEvent& WXUNUSED(event)) +{ + m_angle += 5; + canvas->Refresh(); +} + +void MyFrame::OnAngleDown(wxCommandEvent& WXUNUSED(event)) +{ + m_angle -= 5; + canvas->Refresh(); } void MyFrame::Draw(wxDC& dc) { + // This routine just draws a bunch of random stuff on the screen so that we + // can check that different types of object are being drawn consistently + // between the screen image, the print preview image (at various zoom + // levels), and the printed page. dc.SetBackground(*wxWHITE_BRUSH); - dc.Clear(); - dc.SetFont(* wxGetApp().m_testFont); - - dc.SetBackgroundMode(wxTRANSPARENT); - - dc.SetBrush(* wxCYAN_BRUSH); - dc.SetPen(* wxRED_PEN); - - dc.DrawRectangle(0, 30, 200, 100); + // dc.Clear(); + dc.SetFont(wxGetApp().m_testFont); + + // dc.SetBackgroundMode(wxTRANSPARENT); + + dc.SetPen(*wxBLACK_PEN); + dc.SetBrush(*wxLIGHT_GREY_BRUSH); - dc.DrawText( wxT("Rectangle 200 by 100"), 40, 40); + dc.DrawRectangle(0, 0, 230, 350); + dc.DrawLine(0, 0, 229, 349); + dc.DrawLine(229, 0, 0, 349); + dc.SetBrush(*wxTRANSPARENT_BRUSH); + + dc.SetBrush(*wxCYAN_BRUSH); + dc.SetPen(*wxRED_PEN); + + dc.DrawRoundedRectangle(0, 20, 200, 80, 20); + dc.DrawText( wxT("Rectangle 200 by 80"), 40, 40); + + dc.SetPen( wxPen(*wxBLACK,0,wxDOT_DASH) ); dc.DrawEllipse(50, 140, 100, 50); - + dc.SetPen(*wxRED_PEN); + dc.DrawText( wxT("Test message: this is in 10 point text"), 10, 180); #if wxUSE_UNICODE - char *test = "Greek (Ελληνικά) Γειά σας -- Hebrew שלום -- Japanese (日本語)"; + const char *test = "Hebrew שלום -- Japanese (日本語)"; wxString tmp = wxConvUTF8.cMB2WC( test ); - dc.DrawText( tmp, 10, 200 ); + dc.DrawText( tmp, 10, 200 ); #endif - - dc.SetPen(* wxBLACK_PEN); - dc.DrawLine(0, 0, 200, 200); - dc.DrawLine(200, 0, 0, 200); - + + wxPoint points[5]; + points[0].x = 0; + points[0].y = 0; + points[1].x = 20; + points[1].y = 0; + points[2].x = 20; + points[2].y = 20; + points[3].x = 10; + points[3].y = 20; + points[4].x = 10; + points[4].y = -20; + dc.DrawPolygon( 5, points, 20, 250, wxODDEVEN_RULE ); + dc.DrawPolygon( 5, points, 50, 250, wxWINDING_RULE ); + + dc.DrawEllipticArc( 80, 250, 60, 30, 0.0, 270.0 ); + + points[0].x = 150; + points[0].y = 250; + points[1].x = 180; + points[1].y = 250; + points[2].x = 180; + points[2].y = 220; + points[3].x = 200; + points[3].y = 220; + dc.DrawSpline( 4, points ); + + dc.DrawArc( 20,10, 10,10, 25,40 ); + + wxString str; + int i = 0; + str.Printf( wxT("---- Text at angle %d ----"), i ); + dc.DrawRotatedText( str, 100, 300, i ); + + i = m_angle; + str.Printf( wxT("---- Text at angle %d ----"), i ); + dc.DrawRotatedText( str, 100, 300, i ); + wxIcon my_icon = wxICON(mondrian) ; - + dc.DrawIcon( my_icon, 100, 100); + + if (m_bitmap.Ok()) + dc.DrawBitmap( m_bitmap, 10, 10 ); + +#if wxUSE_GRAPHICS_CONTEXT + wxGraphicsContext *gc = NULL; + + wxPrinterDC *printer_dc = wxDynamicCast( &dc, wxPrinterDC ); + if (printer_dc) + gc = wxGraphicsContext::Create( *printer_dc ); + + wxWindowDC *window_dc = wxDynamicCast( &dc, wxWindowDC ); + if (window_dc) + gc = wxGraphicsContext::Create( *window_dc ); + + if (gc) + { + // make a path that contains a circle and some lines, centered at 100,100 + gc->SetPen( *wxRED_PEN ); + gc->SetFont( wxGetApp().m_testFont, *wxGREEN ); + wxGraphicsPath path = gc->CreatePath(); + path.AddCircle( 50.0, 50.0, 50.0 ); + path.MoveToPoint(0.0, 50.0); + path.AddLineToPoint(100.0, 50.0); + path.MoveToPoint(50.0, 0.0); + path.AddLineToPoint(50.0, 100.0 ); + path.CloseSubpath(); + path.AddRectangle(25.0, 25.0, 50.0, 50.0); + + gc->StrokePath(path); + + delete gc; + } +#endif + } void MyFrame::OnSize(wxSizeEvent& event ) @@ -330,18 +453,12 @@ 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) + wxScrolledWindow(frame, wxID_ANY, pos, size, style) { SetBackgroundColour(* wxWHITE); } -MyCanvas::~MyCanvas(void) -{ -} - -// Define the repainting behaviour void MyCanvas::OnDraw(wxDC& dc) { frame->Draw(dc); @@ -357,29 +474,29 @@ bool MyPrintout::OnPrintPage(int page) if (dc) { if (page == 1) - DrawPageOne(dc); + DrawPageOne(); else if (page == 2) - DrawPageTwo(dc); - - dc->SetDeviceOrigin(0, 0); - dc->SetUserScale(1.0, 1.0); - + DrawPageTwo(); + + // Draw page numbers at top left corner of printable area, sized so that + // screen size of text matches paper size. + MapScreenSizeToPage(); wxChar buf[200]; wxSprintf(buf, wxT("PAGE %d"), page); - dc->DrawText(buf, 10, 10); - - return TRUE; + dc->DrawText(buf, 0, 0); + + return true; } else - return FALSE; + return false; } bool MyPrintout::OnBeginDocument(int startPage, int endPage) { if (!wxPrintout::OnBeginDocument(startPage, endPage)) - return FALSE; - - return TRUE; + return false; + + return true; } void MyPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo) @@ -395,141 +512,183 @@ bool MyPrintout::HasPage(int pageNum) return (pageNum == 1 || pageNum == 2); } -void MyPrintout::DrawPageOne(wxDC *dc) +void MyPrintout::DrawPageOne() { -/* 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); + // You might use THIS code if you were scaling graphics of known size to fit + // on the page. The commented-out code illustrates different ways of scaling + // the graphics. + + // We know the graphic is 230x350. If we didn't know this, we'd need to + // calculate it. + wxCoord maxX = 230; + wxCoord maxY = 350; + + // This sets the user scale and origin of the DC so that the image fits + // within the paper rectangle (but the edges could be cut off by printers + // that can't print to the edges of the paper -- which is most of them. Use + // this if your image already has its own margins. +// FitThisSizeToPaper(wxSize(maxX, maxY)); +// wxRect fitRect = GetLogicalPaperRect(); + + // This sets the user scale and origin of the DC so that the image fits + // within the page rectangle, which is the printable area on Mac and MSW + // and is the entire page on other platforms. +// FitThisSizeToPage(wxSize(maxX, maxY)); +// wxRect fitRect = GetLogicalPageRect(); + + // This sets the user scale and origin of the DC so that the image fits + // within the page margins as specified by g_PageSetupData, which you can + // change (on some platforms, at least) in the Page Setup dialog. Note that + // on Mac, the native Page Setup dialog doesn't let you change the margins + // of a wxPageSetupDialogData object, so you'll have to write your own dialog or + // use the Mac-only wxMacPageMarginsDialog, as we do in this program. + FitThisSizeToPageMargins(wxSize(maxX, maxY), *g_pageSetupData); + wxRect fitRect = GetLogicalPageMarginsRect(*g_pageSetupData); + + // This sets the user scale and origin of the DC so that the image appears + // on the paper at the same size that it appears on screen (i.e., 10-point + // type on screen is 10-point on the printed page) and is positioned in the + // top left corner of the page rectangle (just as the screen image appears + // in the top left corner of the window). +// MapScreenSizeToPage(); +// wxRect fitRect = GetLogicalPageRect(); + + // You could also map the screen image to the entire paper at the same size + // as it appears on screen. +// MapScreenSizeToPaper(); +// wxRect fitRect = GetLogicalPaperRect(); + + // You might also wish to do you own scaling in order to draw objects at + // full native device resolution. In this case, you should do the following. + // Note that you can use the GetLogicalXXXRect() commands to obtain the + // appropriate rect to scale to. +// MapScreenSizeToDevice(); +// wxRect fitRect = GetLogicalPageRect(); + + // Each of the preceding Fit or Map routines positions the origin so that + // the drawn image is positioned at the top left corner of the reference + // rectangle. You can easily center or right- or bottom-justify the image as + // follows. + + // This offsets the image so that it is centered within the reference + // rectangle defined above. + wxCoord xoff = (fitRect.width - maxX) / 2; + wxCoord yoff = (fitRect.height - maxY) / 2; + OffsetLogicalOrigin(xoff, yoff); + + // This offsets the image so that it is positioned at the bottom right of + // the reference rectangle defined above. +// wxCoord xoff = (fitRect.width - maxX); +// wxCoord yoff = (fitRect.height - maxY); +// OffsetLogicalOrigin(xoff, yoff); + + frame->Draw(*GetDC()); } -void MyPrintout::DrawPageTwo(wxDC *dc) +void MyPrintout::DrawPageTwo() { -/* 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. - */ + // 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. + + // Compare this to DrawPageOne(), which uses the really convenient routines + // from wxPrintout to fit the screen image onto the printed page. This page + // illustrates how to do all the scaling calculations yourself, if you're so + // inclined. + + wxDC *dc = GetDC(); + // 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. + + // 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) + + // 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. + + // 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 + + // Calculate conversion factor for converting millimetres into logical + // units. There are approx. 25.4 mm to the inch. There are ppi device units + // to the inch. Therefore 1 mm corresponds to ppi/25.4 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 logUnitsFactor = (float)(ppiPrinterX/(scale*25.4)); 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->SetBrush(*wxTRANSPARENT_BRUSH); + { // GetTextExtent demo: - wxString words[7] = {"This ", "is ", "GetTextExtent ", "testing ", "string. ", "Enjoy ", "it!"}; - long w, h; + wxString words[7] = {_T("This "), _T("is "), _T("GetTextExtent "), _T("testing "), _T("string. "), _T("Enjoy "), _T("it!")}; + wxCoord w, h; long x = 200, y= 250; wxFont fnt(15, wxSWISS, wxNORMAL, wxNORMAL); - + dc->SetFont(fnt); - for (int i = 0; i < 7; i++) { - dc->GetTextExtent(words[i], &w, &h); + + for (int i = 0; i < 7; i++) + { + wxString word = words[i]; + word.Remove( word.Len()-1, 1 ); + dc->GetTextExtent(word, &w, &h); dc->DrawRectangle(x, y, w, h); + dc->GetTextExtent(words[i], &w, &h); dc->DrawText(words[i], x, y); x += w; } - dc->SetFont(* wxGetApp().m_testFont); + } - - dc->DrawText("Some test text", 200, 300 ); + + dc->SetFont(wxGetApp().m_testFont); + + dc->DrawText(_T("Some test text"), 200, 300 ); // 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, + dc->DrawLine( (long)leftMarginLogical, (long)topMarginLogical, (long)rightMarginLogical, (long)topMarginLogical); - dc->DrawLine( (long)leftMarginLogical, (long)bottomMarginLogical, + dc->DrawLine( (long)leftMarginLogical, (long)bottomMarginLogical, (long)rightMarginLogical, (long)bottomMarginLogical); - - WritePageHeader(this, dc, "A header", logUnitsFactor); + + WritePageHeader(this, dc, _T("A header"), logUnitsFactor); } // Writes a header on a page. Margin units are in millimetres. -bool WritePageHeader(wxPrintout *printout, wxDC *dc, char *text, float mmToLogical) +bool WritePageHeader(wxPrintout *printout, wxDC *dc, const wxChar *text, float mmToLogical) { /* static wxFont *headerFont = (wxFont *) NULL; @@ -539,27 +698,28 @@ headerFont = wxTheFontList->FindOrCreateFont(16, wxSWISS, wxNORMAL, wxBOLD); } dc->SetFont(headerFont); */ - + int pageWidthMM, pageHeightMM; - + printout->GetPageSizeMM(&pageWidthMM, &pageHeightMM); - + wxUnusedVar(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; + + wxCoord 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), + dc->DrawLine( (long)leftMarginLogical, (long)(topMarginLogical+yExtent), (long)rightMarginLogical, (long)topMarginLogical+yExtent ); - - return TRUE; + + return true; }