X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1bd122ddfa1d4d3e5f87ecb1e7dd317439fb6593..3e5f88c6d2cdb2d4b0de4f44146a9839dc55f129:/src/gtk/print.cpp?ds=inline diff --git a/src/gtk/print.cpp b/src/gtk/print.cpp index 451fe2a82a..6076ef552f 100644 --- a/src/gtk/print.cpp +++ b/src/gtk/print.cpp @@ -1,9 +1,9 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: wx/gtk/print.cpp +// Name: src/gtk/print.cpp // Author: Anthony Bretaudeau // Purpose: GTK printing support // Created: 2007-08-25 -// RCS-ID: $Id: print.cpp,v 1 2007-08-25 05:44:44 PC Exp $ +// RCS-ID: $Id$ // Copyright: (c) 2007 wxWidgets development team // Licence: wxWindows Licence ///////////////////////////////////////////////////////////////////////////// @@ -31,12 +31,20 @@ #endif #include "wx/fontutil.h" -#include "wx/gtk/private.h" #include "wx/dynlib.h" #include "wx/paper.h" +#include "wx/scopeguard.h" +#include "wx/testing.h" #include +#if GTK_CHECK_VERSION(2,14,0) +#include +#else +#include +#endif + + #if wxUSE_GRAPHICS_CONTEXT #include "wx/graphics.h" #endif @@ -48,7 +56,9 @@ wxFORCE_LINK_THIS_MODULE(gtk_print) #include "wx/gtk/gnome/gprint.h" #endif -// Usefull to convert angles from/to Rad to/from Deg. +#include "wx/gtk/private/object.h" + +// Useful to convert angles from/to Rad to/from Deg. static const double RAD2DEG = 180.0 / M_PI; static const double DEG2RAD = M_PI / 180.0; @@ -66,7 +76,7 @@ public: { #if wxUSE_LIBGNOMEPRINT // This module must be initialized AFTER gnomeprint's one - AddDependency(CLASSINFO(wxGnomePrintModule)); + AddDependency(wxCLASSINFO(wxGnomePrintModule)); #endif } bool OnInit(); @@ -78,8 +88,12 @@ private: bool wxGtkPrintModule::OnInit() { +#ifndef __WXGTK3__ if (gtk_check_version(2,10,0) == NULL) +#endif + { wxPrintFactory::SetPrintFactory( new wxGtkPrintFactory ); + } return true; } @@ -222,11 +236,13 @@ IMPLEMENT_CLASS(wxGtkPrintNativeData, wxPrintNativeDataBase) wxGtkPrintNativeData::wxGtkPrintNativeData() { m_config = gtk_print_settings_new(); + m_job = NULL; + m_context = NULL; } wxGtkPrintNativeData::~wxGtkPrintNativeData() { - g_object_unref (m_config); + g_object_unref(m_config); } // Convert datas stored in m_config to a wxPrintData. @@ -386,6 +402,9 @@ bool wxGtkPrintNativeData::TransferTo( wxPrintData &data ) data.SetPaperId( wxPAPER_FANFOLD_LGL_GERMAN); else data.SetPaperId(wxPAPER_NONE); + + data.SetPrinterName(gtk_print_settings_get_printer(m_config)); + return true; } @@ -534,6 +553,8 @@ bool wxGtkPrintNativeData::TransferFrom( const wxPrintData &data ) default: break; } + gtk_print_settings_set_printer(m_config, data.GetPrinterName().utf8_str()); + return true; } @@ -603,7 +624,7 @@ wxGtkPrintDialog::~wxGtkPrintDialog() // This is called even if we actually don't want the dialog to appear. int wxGtkPrintDialog::ShowModal() { - GtkPrintOperationResult response; + WX_TESTING_SHOW_MODAL_HOOK(); // We need to restore the settings given in the constructor. wxPrintData data = m_printDialogData.GetPrintData(); @@ -629,17 +650,26 @@ int wxGtkPrintDialog::ShowModal() gtk_print_settings_set_page_ranges (settings, range, 1); } + GtkPrintOperation * const printOp = native->GetPrintJob(); + // If the settings are OK, we restore it. if (settings != NULL) - gtk_print_operation_set_print_settings (native->GetPrintJob(), settings); - gtk_print_operation_set_default_page_setup (native->GetPrintJob(), native->GetPageSetupFromSettings(settings)); + gtk_print_operation_set_print_settings (printOp, settings); + gtk_print_operation_set_default_page_setup (printOp, native->GetPageSetupFromSettings(settings)); // Show the dialog if needed. GError* gError = NULL; - if (GetShowDialog()) - response = gtk_print_operation_run (native->GetPrintJob(), GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, GTK_WINDOW(gtk_widget_get_toplevel(m_parent->m_widget) ), &gError); - else - response = gtk_print_operation_run (native->GetPrintJob(), GTK_PRINT_OPERATION_ACTION_PRINT, GTK_WINDOW(gtk_widget_get_toplevel(m_parent->m_widget)), &gError); + GtkPrintOperationResult response = gtk_print_operation_run + ( + printOp, + GetShowDialog() + ? GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG + : GTK_PRINT_OPERATION_ACTION_PRINT, + m_parent + ? GTK_WINDOW(gtk_widget_get_toplevel(m_parent->m_widget)) + : NULL, + &gError + ); // Does everything went well? if (response == GTK_PRINT_OPERATION_RESULT_CANCEL) @@ -648,16 +678,22 @@ int wxGtkPrintDialog::ShowModal() } else if (response == GTK_PRINT_OPERATION_RESULT_ERROR) { + wxLogError(_("Error while printing: ") + wxString(gError ? gError->message : "???")); g_error_free (gError); - wxLogError(_("Error while printing: ") + wxString::Format(_("%s"), gError->message)); return wxID_NO; // We use wxID_NO because there is no wxID_ERROR available } // Now get the settings and save it. - GtkPrintSettings* newSettings = gtk_print_operation_get_print_settings (native->GetPrintJob()); + GtkPrintSettings* newSettings = gtk_print_operation_get_print_settings(printOp); native->SetPrintConfig(newSettings); data.ConvertFromNative(); + // Set PrintDialogData variables + m_printDialogData.SetPrintData(data); + m_printDialogData.SetCollate(data.GetCollate()); + m_printDialogData.SetNoCopies(data.GetNoCopies()); + m_printDialogData.SetPrintToFile(data.GetPrinterName() == "Print to File"); + // Same problem as a few lines before. switch (gtk_print_settings_get_print_pages(newSettings)) { @@ -714,6 +750,8 @@ wxGtkPageSetupDialog::~wxGtkPageSetupDialog() int wxGtkPageSetupDialog::ShowModal() { + WX_TESTING_SHOW_MODAL_HOOK(); + // Get the config. m_pageDialogData.GetPrintData().ConvertToNative(); wxGtkPrintNativeData *native = (wxGtkPrintNativeData*) m_pageDialogData.GetPrintData().GetNativeData(); @@ -735,43 +773,82 @@ int wxGtkPageSetupDialog::ShowModal() } } - // Now show the dialog. - GtkPageSetup* newPageSetup = gtk_print_run_page_setup_dialog (GTK_WINDOW(m_parent->m_widget), - oldPageSetup, - nativeData); - int ret; - if (newPageSetup != oldPageSetup) - { - native->SetPageSetupToSettings(nativeData, newPageSetup); - m_pageDialogData.GetPrintData().ConvertFromNative(); - - // Store custom paper format if any. - if (m_pageDialogData.GetPrintData().GetPaperId() == wxPAPER_NONE) - { - gdouble ml,mr,mt,mb,pw,ph; - ml = gtk_page_setup_get_left_margin (newPageSetup, GTK_UNIT_MM); - mr = gtk_page_setup_get_right_margin (newPageSetup, GTK_UNIT_MM); - mt = gtk_page_setup_get_top_margin (newPageSetup, GTK_UNIT_MM); - mb = gtk_page_setup_get_bottom_margin (newPageSetup, GTK_UNIT_MM); + // Set selected printer + gtk_print_settings_set(nativeData, "format-for-printer", + gtk_print_settings_get_printer(nativeData)); - pw = gtk_page_setup_get_paper_width (newPageSetup, GTK_UNIT_MM); - ph = gtk_page_setup_get_paper_height (newPageSetup, GTK_UNIT_MM); + // Create custom dialog + wxString title(GetTitle()); + if ( title.empty() ) + title = _("Page Setup"); + GtkWidget * + dlg = gtk_page_setup_unix_dialog_new(title.utf8_str(), + m_parent + ? GTK_WINDOW(m_parent->m_widget) + : NULL); - m_pageDialogData.SetMarginTopLeft( wxPoint( (int)(ml+0.5), (int)(mt+0.5)) ); - m_pageDialogData.SetMarginBottomRight( wxPoint( (int)(mr+0.5), (int)(mb+0.5)) ); + gtk_page_setup_unix_dialog_set_print_settings( + GTK_PAGE_SETUP_UNIX_DIALOG(dlg), nativeData); + gtk_page_setup_unix_dialog_set_page_setup( + GTK_PAGE_SETUP_UNIX_DIALOG(dlg), oldPageSetup); - m_pageDialogData.SetPaperSize( wxSize( (int)(pw+0.5), (int)(ph+0.5) ) ); - } + int result = gtk_dialog_run(GTK_DIALOG(dlg)); + gtk_widget_hide(dlg); - ret = wxID_OK; - } - else + switch ( result ) { - ret = wxID_CANCEL; + case GTK_RESPONSE_OK: + case GTK_RESPONSE_APPLY: + { + // Store Selected Printer Name + gtk_print_settings_set_printer + ( + nativeData, + gtk_print_settings_get(nativeData, "format-for-printer") + ); + + wxGtkObject + newPageSetup(gtk_page_setup_unix_dialog_get_page_setup( + GTK_PAGE_SETUP_UNIX_DIALOG(dlg))); + native->SetPageSetupToSettings(nativeData, newPageSetup); + + m_pageDialogData.GetPrintData().ConvertFromNative(); + + // Store custom paper format if any. + if ( m_pageDialogData.GetPrintData().GetPaperId() == wxPAPER_NONE ) + { + gdouble ml,mr,mt,mb,pw,ph; + ml = gtk_page_setup_get_left_margin (newPageSetup, GTK_UNIT_MM); + mr = gtk_page_setup_get_right_margin (newPageSetup, GTK_UNIT_MM); + mt = gtk_page_setup_get_top_margin (newPageSetup, GTK_UNIT_MM); + mb = gtk_page_setup_get_bottom_margin (newPageSetup, GTK_UNIT_MM); + + pw = gtk_page_setup_get_paper_width (newPageSetup, GTK_UNIT_MM); + ph = gtk_page_setup_get_paper_height (newPageSetup, GTK_UNIT_MM); + + m_pageDialogData.SetMarginTopLeft(wxPoint((int)(ml+0.5), + (int)(mt+0.5))); + m_pageDialogData.SetMarginBottomRight(wxPoint((int)(mr+0.5), + (int)(mb+0.5))); + + m_pageDialogData.SetPaperSize(wxSize((int)(pw+0.5), + (int)(ph+0.5))); + } + + result = wxID_OK; + } + break; + + default: + case GTK_RESPONSE_CANCEL: + result = wxID_CANCEL; + break; } - return ret; + gtk_widget_destroy(dlg); + + return result; } //---------------------------------------------------------------------------- @@ -832,9 +909,10 @@ bool wxGtkPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt ) wxPrintData printdata = GetPrintDialogData().GetPrintData(); wxGtkPrintNativeData *native = (wxGtkPrintNativeData*) printdata.GetNativeData(); - GtkPrintOperation *printOp = gtk_print_operation_new (); - - native->SetPrintJob( printOp ); + wxGtkObject printOp(gtk_print_operation_new()); + native->SetPrintJob(printOp); + wxON_BLOCK_EXIT_OBJ1(*native, wxGtkPrintNativeData::SetPrintJob, + static_cast(NULL)); wxPrinterToGtkData dataToSend; dataToSend.printer = this; @@ -863,8 +941,6 @@ bool wxGtkPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt ) wxFAIL_MSG(_("The print dialog returned an error.")); } - g_object_unref (printOp); - return (sm_lastError == wxPRINTER_NO_ERROR); } @@ -1108,8 +1184,6 @@ wxGtkPrinterDCImpl::wxGtkPrinterDCImpl(wxPrinterDC *owner, const wxPrintData& da #if wxCAIRO_SCALE m_PS2DEV = 1.0; m_DEV2PS = 1.0; - - cairo_scale( m_cairo, 72.0 / (double)m_resolution, 72.0 / (double)m_resolution ); #else m_PS2DEV = (double)m_resolution / 72.0; m_DEV2PS = 72.0 / (double)m_resolution; @@ -1121,15 +1195,6 @@ wxGtkPrinterDCImpl::wxGtkPrinterDCImpl(wxPrinterDC *owner, const wxPrintData& da m_signX = 1; // default x-axis left to right. m_signY = 1; // default y-axis bottom up -> top down. - - // By default the origin of the Cairo context is in the upper left - // corner of the printable area. We need to translate it so that it - // is in the upper left corner of the paper (without margins) - GtkPageSetup *setup = gtk_print_context_get_page_setup( m_gpc ); - gdouble ml, mt; - ml = gtk_page_setup_get_left_margin (setup, GTK_UNIT_POINTS); - mt = gtk_page_setup_get_top_margin (setup, GTK_UNIT_POINTS); - cairo_translate(m_cairo, -ml, -mt); } wxGtkPrinterDCImpl::~wxGtkPrinterDCImpl() @@ -1148,6 +1213,11 @@ void* wxGtkPrinterDCImpl::GetCairoContext() const return (void*) cairo_reference( m_cairo ); } +void* wxGtkPrinterDCImpl::GetHandle() const +{ + return GetCairoContext(); +} + bool wxGtkPrinterDCImpl::DoFloodFill(wxCoord WXUNUSED(x1), wxCoord WXUNUSED(y1), const wxColour& WXUNUSED(col), @@ -1266,7 +1336,8 @@ bool wxGtkPrinterDCImpl::DoGetPixel(wxCoord WXUNUSED(x1), void wxGtkPrinterDCImpl::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) { - if (m_pen.GetStyle() == wxPENSTYLE_TRANSPARENT) return; + if ( m_pen.IsTransparent() ) + return; SetPen( m_pen ); cairo_move_to ( m_cairo, XLOG2DEV(x1), YLOG2DEV(y1) ); @@ -1374,7 +1445,8 @@ void wxGtkPrinterDCImpl::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord void wxGtkPrinterDCImpl::DoDrawPoint(wxCoord x, wxCoord y) { - if (m_pen.GetStyle() == wxPENSTYLE_TRANSPARENT) return; + if ( m_pen.IsTransparent() ) + return; SetPen( m_pen ); @@ -1385,9 +1457,11 @@ void wxGtkPrinterDCImpl::DoDrawPoint(wxCoord x, wxCoord y) CalcBoundingBox( x, y ); } -void wxGtkPrinterDCImpl::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset) +void wxGtkPrinterDCImpl::DoDrawLines(int n, const wxPoint points[], wxCoord xoffset, wxCoord yoffset) { - if (m_pen.GetStyle() == wxPENSTYLE_TRANSPARENT) return; + if ( m_pen.IsTransparent() ) + return; + if (n <= 0) return; @@ -1405,7 +1479,7 @@ void wxGtkPrinterDCImpl::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, w cairo_stroke ( m_cairo); } -void wxGtkPrinterDCImpl::DoDrawPolygon(int n, wxPoint points[], +void wxGtkPrinterDCImpl::DoDrawPolygon(int n, const wxPoint points[], wxCoord xoffset, wxCoord yoffset, wxPolygonFillMode fillStyle) { @@ -1424,9 +1498,9 @@ void wxGtkPrinterDCImpl::DoDrawPolygon(int n, wxPoint points[], int i; for (i = 1; i < n; i++) { - int x = points[i].x + xoffset; - int y = points[i].y + yoffset; - cairo_line_to( m_cairo, XLOG2DEV(x), YLOG2DEV(y) ); + int xx = points[i].x + xoffset; + int yy = points[i].y + yoffset; + cairo_line_to( m_cairo, XLOG2DEV(xx), YLOG2DEV(yy) ); } cairo_close_path(m_cairo); @@ -1441,7 +1515,7 @@ void wxGtkPrinterDCImpl::DoDrawPolygon(int n, wxPoint points[], cairo_restore(m_cairo); } -void wxGtkPrinterDCImpl::DoDrawPolyPolygon(int n, int count[], wxPoint points[], +void wxGtkPrinterDCImpl::DoDrawPolyPolygon(int n, const int count[], const wxPoint points[], wxCoord xoffset, wxCoord yoffset, wxPolygonFillMode fillStyle) { @@ -1637,9 +1711,11 @@ void wxGtkPrinterDCImpl::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoor y = wxCoord(YLOG2DEV(y)); int bw = bitmap.GetWidth(); int bh = bitmap.GetHeight(); +#ifndef __WXGTK3__ wxBitmap bmpSource = bitmap; // we need a non-const instance. if (!useMask && !bitmap.HasPixbuf() && bitmap.GetMask()) bmpSource.SetMask(NULL); +#endif cairo_save(m_cairo); @@ -1651,12 +1727,16 @@ void wxGtkPrinterDCImpl::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoor wxDouble scaleY = (wxDouble) YLOG2DEVREL(bh) / (wxDouble) bh; cairo_scale(m_cairo, scaleX, scaleY); +#ifdef __WXGTK3__ + bitmap.Draw(m_cairo, 0, 0, useMask, &m_textForegroundColour, &m_textBackgroundColour); +#else gdk_cairo_set_source_pixbuf(m_cairo, bmpSource.GetPixbuf(), 0, 0); cairo_pattern_set_filter(cairo_get_source(m_cairo), CAIRO_FILTER_NEAREST); // Use the original size here since the context is scaled already. cairo_rectangle(m_cairo, 0, 0, bw, bh); // Fill the rectangle using the pattern. cairo_fill(m_cairo); +#endif CalcBoundingBox(0,0); CalcBoundingBox(bw,bh); @@ -1676,25 +1756,12 @@ void wxGtkPrinterDCImpl::DoDrawRotatedText(const wxString& text, wxCoord x, wxCo angle = -angle; - bool underlined = m_font.Ok() && m_font.GetUnderlined(); - const wxScopedCharBuffer data = text.utf8_str(); - size_t datalen = strlen(data); - pango_layout_set_text( m_layout, data, datalen); + pango_layout_set_text(m_layout, data, data.length()); - if (underlined) - { - PangoAttrList *attrs = pango_attr_list_new(); - PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE); - a->start_index = 0; - a->end_index = datalen; - pango_attr_list_insert(attrs, a); - pango_layout_set_attributes(m_layout, attrs); - pango_attr_list_unref(attrs); - } - - if (m_textForegroundColour.Ok()) + const bool setAttrs = m_font.GTKSetPangoAttrs(m_layout); + if (m_textForegroundColour.IsOk()) { unsigned char red = m_textForegroundColour.Red(); unsigned char blue = m_textForegroundColour.Blue(); @@ -1754,7 +1821,7 @@ void wxGtkPrinterDCImpl::DoDrawRotatedText(const wxString& text, wxCoord x, wxCo cairo_restore( m_cairo ); - if (underlined) + if (setAttrs) { // Undo underline attributes setting pango_layout_set_attributes(m_layout, NULL); @@ -1782,7 +1849,7 @@ void wxGtkPrinterDCImpl::SetFont( const wxFont& font ) { m_font = font; - if (m_font.Ok()) + if (m_font.IsOk()) { if (m_fontdesc) pango_font_description_free( m_fontdesc ); @@ -1799,7 +1866,7 @@ void wxGtkPrinterDCImpl::SetFont( const wxFont& font ) void wxGtkPrinterDCImpl::SetPen( const wxPen& pen ) { - if (!pen.Ok()) return; + if (!pen.IsOk()) return; m_pen = pen; @@ -1878,7 +1945,7 @@ void wxGtkPrinterDCImpl::SetPen( const wxPen& pen ) void wxGtkPrinterDCImpl::SetBrush( const wxBrush& brush ) { - if (!brush.Ok()) return; + if (!brush.IsOk()) return; m_brush = brush; @@ -2010,6 +2077,8 @@ void wxGtkPrinterDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width { cairo_rectangle ( m_cairo, XLOG2DEV(x), YLOG2DEV(y), XLOG2DEVREL(width), YLOG2DEVREL(height)); cairo_clip(m_cairo); + + wxDCImpl::DoSetClippingRegion(x, y, width, height); } void wxGtkPrinterDCImpl::DestroyClippingRegion() @@ -2029,7 +2098,24 @@ void wxGtkPrinterDCImpl::EndDoc() void wxGtkPrinterDCImpl::StartPage() { - return; + // Notice that we may change the Cairo transformation matrix only here and + // not before (e.g. in wxGtkPrinterDCImpl ctor as we used to do) in order + // to not affect _gtk_print_context_rotate_according_to_orientation() which + // is used in GTK+ itself and wouldn't work correctly if we applied these + // transformations before it is called. + + // By default the origin of the Cairo context is in the upper left + // corner of the printable area. We need to translate it so that it + // is in the upper left corner of the paper (without margins) + GtkPageSetup *setup = gtk_print_context_get_page_setup( m_gpc ); + gdouble ml, mt; + ml = gtk_page_setup_get_left_margin (setup, GTK_UNIT_POINTS); + mt = gtk_page_setup_get_top_margin (setup, GTK_UNIT_POINTS); + cairo_translate(m_cairo, -ml, -mt); + +#if wxCAIRO_SCALE + cairo_scale( m_cairo, 72.0 / (double)m_resolution, 72.0 / (double)m_resolution ); +#endif } void wxGtkPrinterDCImpl::EndPage() @@ -2087,8 +2173,8 @@ void wxGtkPrinterDCImpl::DoGetTextExtent(const wxString& string, wxCoord *width, { // scale the font and apply it PangoFontDescription *desc = theFont->GetNativeFontInfo()->description; - float size = pango_font_description_get_size(desc); - size = size * GetFontPointSizeAdjustment(72.0); + oldSize = pango_font_description_get_size(desc); + const float size = oldSize * GetFontPointSizeAdjustment(72.0); pango_font_description_set_size(desc, (gint)size); pango_layout_set_font_description(m_layout, desc); @@ -2151,7 +2237,7 @@ void wxGtkPrinterDCImpl::SetPrintData(const wxPrintData& data) m_printData = data; } -// overriden for wxPrinterDC Impl +// overridden for wxPrinterDC Impl wxRect wxGtkPrinterDCImpl::GetPaperRect() const { @@ -2252,8 +2338,14 @@ void wxGtkPrintPreview::DetermineScaling() if (paper) { - m_previewPrintout->SetPPIScreen(wxGetDisplayPPI()); - m_previewPrintout->SetPPIPrinter( m_resolution, m_resolution ); + const wxSize screenPPI = wxGetDisplayPPI(); + int logPPIScreenX = screenPPI.GetWidth(); + int logPPIScreenY = screenPPI.GetHeight(); + int logPPIPrinterX = m_resolution; + int logPPIPrinterY = m_resolution; + + m_previewPrintout->SetPPIScreen( logPPIScreenX, logPPIScreenY ); + m_previewPrintout->SetPPIPrinter( logPPIPrinterX, logPPIPrinterY ); // Get width and height in points (1/72th of an inch) wxSize sizeDevUnits(paper->GetSizeDeviceUnits()); @@ -2280,8 +2372,8 @@ void wxGtkPrintPreview::DetermineScaling() m_previewPrintout->SetPaperRectPixels(wxRect(0, 0, m_pageWidth, m_pageHeight)); // At 100%, the page should look about page-size on the screen. - m_previewScaleX = 0.8 * 72.0 / (double)m_resolution; - m_previewScaleY = m_previewScaleX; + m_previewScaleX = float(logPPIScreenX) / logPPIPrinterX; + m_previewScaleY = float(logPPIScreenY) / logPPIPrinterY; } }