X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f415cab9ef1433413a1a68a982ee9b17c5a8deda..eea4d01c65f9b29baa1193db762b4c6b8144af24:/src/msw/printwin.cpp?ds=sidebyside diff --git a/src/msw/printwin.cpp b/src/msw/printwin.cpp index 2eadf2547f..9018f7de70 100644 --- a/src/msw/printwin.cpp +++ b/src/msw/printwin.cpp @@ -39,23 +39,26 @@ #include "wx/intl.h" #include "wx/log.h" #include "wx/dcprint.h" + #include "wx/dcmemory.h" + #include "wx/image.h" #endif +#include "wx/msw/dib.h" +#include "wx/msw/dcmemory.h" #include "wx/msw/printwin.h" -#include "wx/msw/printdlg.h" // RJL used Windows dialog?s +#include "wx/msw/printdlg.h" #include "wx/msw/private.h" - -#include - -#ifndef __WIN32__ - #include +#include "wx/msw/dcprint.h" +#if wxUSE_ENH_METAFILE + #include "wx/msw/enhmeta.h" #endif +#include // --------------------------------------------------------------------------- // private functions // --------------------------------------------------------------------------- -LONG APIENTRY _EXPORT wxAbortProc(HDC hPr, int Code); +BOOL CALLBACK wxAbortProc(HDC hdc, int error); // --------------------------------------------------------------------------- // wxWin macros @@ -75,16 +78,6 @@ LONG APIENTRY _EXPORT wxAbortProc(HDC hPr, int Code); wxWindowsPrinter::wxWindowsPrinter(wxPrintDialogData *data) : wxPrinterBase(data) { - m_lpAbortProc = (WXFARPROC) MakeProcInstance((FARPROC) wxAbortProc, wxGetInstance()); -} - -wxWindowsPrinter::~wxWindowsPrinter() -{ - // avoids warning about statement with no effect (FreeProcInstance - // doesn't do anything under Win32) -#if !defined(__WIN32__) && !defined(__NT__) - FreeProcInstance((FARPROC) m_lpAbortProc); -#endif } bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt) @@ -98,8 +91,6 @@ bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt return false; } - printout->SetIsPreview(false); - if (m_printDialogData.GetMinPage() < 1) m_printDialogData.SetMinPage(1); if (m_printDialogData.GetMaxPage() < 1) @@ -119,19 +110,21 @@ bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt } // May have pressed cancel. - if (!dc || !dc->Ok()) + if (!dc || !dc->IsOk()) { if (dc) delete dc; return false; } + wxPrinterDCImpl *impl = (wxPrinterDCImpl*) dc->GetImpl(); + HDC hdc = ::GetDC(NULL); int logPPIScreenX = ::GetDeviceCaps(hdc, LOGPIXELSX); int logPPIScreenY = ::GetDeviceCaps(hdc, LOGPIXELSY); ::ReleaseDC(NULL, hdc); - int logPPIPrinterX = ::GetDeviceCaps((HDC) dc->GetHDC(), LOGPIXELSX); - int logPPIPrinterY = ::GetDeviceCaps((HDC) dc->GetHDC(), LOGPIXELSY); + int logPPIPrinterX = ::GetDeviceCaps((HDC) impl->GetHDC(), LOGPIXELSX); + int logPPIPrinterY = ::GetDeviceCaps((HDC) impl->GetHDC(), LOGPIXELSY); if (logPPIPrinterX == 0 || logPPIPrinterY == 0) { delete dc; @@ -177,24 +170,7 @@ bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt wxWindow *win = CreateAbortWindow(parent, printout); wxYield(); -#if defined(__WATCOMC__) || defined(__BORLANDC__) || defined(__GNUWIN32__) || defined(__SALFORDC__) || !defined(__WIN32__) -#ifdef STRICT - ::SetAbortProc((HDC) dc->GetHDC(), (ABORTPROC) m_lpAbortProc); -#else - ::SetAbortProc((HDC) dc->GetHDC(), (FARPROC) m_lpAbortProc); -#endif -#else - ::SetAbortProc((HDC) dc->GetHDC(), (int (_stdcall *) - // cast it to right type only if required - // FIXME it's really cdecl and we're casting it to stdcall - either there is - // something I don't understand or it will crash at first usage -#ifdef STRICT - (HDC, int) -#else - () -#endif - )m_lpAbortProc); -#endif + ::SetAbortProc(GetHdcOf(*impl), wxAbortProc); if (!win) { @@ -268,8 +244,7 @@ bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt if (sm_abortWindow) { sm_abortWindow->Show(false); - delete sm_abortWindow; - sm_abortWindow = NULL; + wxDELETE(sm_abortWindow); } delete dc; @@ -279,7 +254,7 @@ bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt wxDC *wxWindowsPrinter::PrintDialog(wxWindow *parent) { - wxDC *dc = (wxPrinterDC*) NULL; + wxDC *dc = NULL; wxWindowsPrintDialog dialog(parent, & m_printDialogData); int ret = dialog.ShowModal(); @@ -368,11 +343,12 @@ void wxWindowsPrintPreview::DetermineScaling() int logPPIPrinterX; int logPPIPrinterY; - wxRect paperRect; + wxRect paperRect; - if ( printerDC.Ok() ) + if ( printerDC.IsOk() ) { - HDC dc = GetHdcOf(printerDC); + wxPrinterDCImpl *impl = (wxPrinterDCImpl*) printerDC.GetImpl(); + HDC dc = GetHdcOf(*impl); printerWidthMM = ::GetDeviceCaps(dc, HORZSIZE); printerHeightMM = ::GetDeviceCaps(dc, VERTSIZE); printerXRes = ::GetDeviceCaps(dc, HORZRES); @@ -380,7 +356,7 @@ void wxWindowsPrintPreview::DetermineScaling() logPPIPrinterX = ::GetDeviceCaps(dc, LOGPIXELSX); logPPIPrinterY = ::GetDeviceCaps(dc, LOGPIXELSY); - paperRect = printerDC.GetPaperRect(); + paperRect = printerDC.GetPaperRect(); if ( logPPIPrinterX == 0 || logPPIPrinterY == 0 || @@ -400,7 +376,7 @@ void wxWindowsPrintPreview::DetermineScaling() logPPIPrinterX = 600; logPPIPrinterY = 600; - paperRect = wxRect(0, 0, printerXRes, printerYRes); + paperRect = wxRect(0, 0, printerXRes, printerYRes); m_isOk = false; } m_pageWidth = printerXRes; @@ -415,15 +391,55 @@ void wxWindowsPrintPreview::DetermineScaling() m_previewScaleY = float(logPPIScreenY) / logPPIPrinterY; } -/**************************************************************************** +#if wxUSE_ENH_METAFILE +bool wxWindowsPrintPreview::RenderPageIntoBitmap(wxBitmap& bmp, int pageNum) +{ + // The preview, as implemented in wxPrintPreviewBase (and as used prior to + // wx3) is inexact: it uses screen DC, which has much lower resolution and + // has other properties different from printer DC, so the preview is not + // quite right. + // + // To make matters worse, if the application depends heavily on + // GetTextExtent() or does text layout itself, the output in preview and on + // paper can be very different. In particular, wxHtmlEasyPrinting is + // affected and the preview can be easily off by several pages. + // + // To fix this, we render the preview into high-resolution enhanced + // metafile with properties identical to the printer DC. This guarantees + // metrics correctness while still being fast. + + + // print the preview into a metafile: + wxPrinterDC printerDC(m_printDialogData.GetPrintData()); + wxEnhMetaFileDC metaDC(printerDC, + wxEmptyString, + printerDC.GetSize().x, printerDC.GetSize().y); - FUNCTION: wxAbortProc() + if ( !RenderPageIntoDC(metaDC, pageNum) ) + return false; - PURPOSE: Processes messages for the Abort Dialog box + wxEnhMetaFile *metafile = metaDC.Close(); + if ( !metafile ) + return false; -****************************************************************************/ + // now render the metafile: + wxMemoryDC bmpDC; + bmpDC.SelectObject(bmp); + bmpDC.Clear(); + + wxRect outRect(0, 0, bmp.GetWidth(), bmp.GetHeight()); + metafile->Play(&bmpDC, &outRect); + + + delete metafile; + + // TODO: we should keep the metafile and reuse it when changing zoom level + + return true; +} +#endif // wxUSE_ENH_METAFILE -LONG APIENTRY _EXPORT wxAbortProc(HDC WXUNUSED(hPr), int WXUNUSED(Code)) +BOOL CALLBACK wxAbortProc(HDC WXUNUSED(hdc), int WXUNUSED(error)) { MSG msg;