X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e0d1fd7f6e88e6554b21785dc8d7d86a8daccbb1..bba35861478a26f5d8c756a9a7fa2bbd19a69cb1:/src/gtk/print.cpp?ds=sidebyside

diff --git a/src/gtk/print.cpp b/src/gtk/print.cpp
index e9b17367a8..7f7722f73a 100644
--- a/src/gtk/print.cpp
+++ b/src/gtk/print.cpp
@@ -22,6 +22,7 @@
 #ifndef WX_PRECOMP
 #include "wx/log.h"
 #include "wx/dcmemory.h"
+#include "wx/dcprint.h"
 #include "wx/icon.h"
 #include "wx/math.h"
 #include "wx/image.h"
@@ -143,9 +144,9 @@ wxGtkPrintFactory::CreatePrintSetupDialog(wxWindow * WXUNUSED(parent),
     return NULL;
 }
 
-wxDC* wxGtkPrintFactory::CreatePrinterDC( const wxPrintData& data )
+wxDCImpl* wxGtkPrintFactory::CreatePrinterDCImpl( wxPrinterDC *owner, const wxPrintData& data )
 {
-    return new wxGtkPrintDC(data);
+    return new wxGtkPrinterDCImpl( owner, data );
 }
 
 bool wxGtkPrintFactory::HasOwnPrintToFile()
@@ -260,15 +261,24 @@ bool wxGtkPrintNativeData::TransferTo( wxPrintData &data )
     if(!m_config)
         return false;
 
-    GtkPrintQuality quality = gtk_print_settings_get_quality(m_config);
-    if (quality == GTK_PRINT_QUALITY_HIGH)
-        data.SetQuality(wxPRINT_QUALITY_HIGH);
-    else if (quality == GTK_PRINT_QUALITY_LOW)
-        data.SetQuality(wxPRINT_QUALITY_LOW);
-    else if (quality == GTK_PRINT_QUALITY_DRAFT)
-        data.SetQuality(wxPRINT_QUALITY_DRAFT);
-    else
-        data.SetQuality(wxPRINT_QUALITY_MEDIUM);
+    int resolution = gtk_print_settings_get_resolution(m_config);
+    if ( resolution > 0 )
+    {
+        // if resolution is explicitly set, use it
+        data.SetQuality(resolution);
+    }
+    else // use more vague "quality"
+    {
+        GtkPrintQuality quality = gtk_print_settings_get_quality(m_config);
+        if (quality == GTK_PRINT_QUALITY_HIGH)
+            data.SetQuality(wxPRINT_QUALITY_HIGH);
+        else if (quality == GTK_PRINT_QUALITY_LOW)
+            data.SetQuality(wxPRINT_QUALITY_LOW);
+        else if (quality == GTK_PRINT_QUALITY_DRAFT)
+            data.SetQuality(wxPRINT_QUALITY_DRAFT);
+        else
+            data.SetQuality(wxPRINT_QUALITY_MEDIUM);
+    }
 
     data.SetNoCopies(gtk_print_settings_get_n_copies(m_config));
 
@@ -891,10 +901,16 @@ void wxGtkPrinter::BeginPrint(wxPrintout *printout, GtkPrintOperation *operation
     wxPrintData printdata = GetPrintDialogData().GetPrintData();
     wxGtkPrintNativeData *native = (wxGtkPrintNativeData*) printdata.GetNativeData();
 
+    // We need to update printdata with the new data from the dialog and we
+    // have to do this here because this method needs this new data and we
+    // cannot update it earlier
+    native->SetPrintConfig(gtk_print_operation_get_print_settings(operation));
+    printdata.ConvertFromNative();
+
     SetPrintContext(context);
     native->SetPrintContext( context );
 
-    wxGtkPrintDC *printDC = new wxGtkPrintDC( printdata );
+    wxPrinterDC *printDC = new wxPrinterDC( printdata );
     m_dc = printDC;
 
     if (!m_dc->IsOk())
@@ -902,7 +918,7 @@ void wxGtkPrinter::BeginPrint(wxPrintout *printout, GtkPrintOperation *operation
         if (sm_lastError != wxPRINTER_CANCELLED)
         {
             sm_lastError = wxPRINTER_ERROR;
-            wxFAIL_MSG(_("The wxGtkPrintDC cannot be used."));
+            wxFAIL_MSG(_("The wxGtkPrinterDC cannot be used."));
         }
         return;
     }
@@ -1065,7 +1081,8 @@ wxDC* wxGtkPrinter::PrintDialog( wxWindow *parent )
     }
 
     m_printDialogData = dialog.GetPrintDialogData();
-    return new wxGtkPrintDC( m_printDialogData.GetPrintData() );
+    
+    return new wxPrinterDC( m_printDialogData.GetPrintData() );
 }
 
 bool wxGtkPrinter::Setup( wxWindow * WXUNUSED(parent) )
@@ -1075,7 +1092,7 @@ bool wxGtkPrinter::Setup( wxWindow * WXUNUSED(parent) )
 }
 
 //-----------------------------------------------------------------------------
-// wxGtkPrintDC
+// wxGtkPrinterDC
 //-----------------------------------------------------------------------------
 
 #define XLOG2DEV(x)     ((double)(LogicalToDeviceX(x)) * m_DEV2PS)
@@ -1083,9 +1100,11 @@ bool wxGtkPrinter::Setup( wxWindow * WXUNUSED(parent) )
 #define YLOG2DEV(x)     ((double)(LogicalToDeviceY(x)) * m_DEV2PS)
 #define YLOG2DEVREL(x)  ((double)(LogicalToDeviceYRel(x)) * m_DEV2PS)
 
-IMPLEMENT_CLASS(wxGtkPrintDC, wxDC)
 
-wxGtkPrintDC::wxGtkPrintDC( const wxPrintData& data )
+IMPLEMENT_ABSTRACT_CLASS(wxGtkPrinterDCImpl, wxDCImpl)
+
+wxGtkPrinterDCImpl::wxGtkPrinterDCImpl(wxPrinterDC *owner, const wxPrintData& data)
+                  : wxDCImpl( owner )
 {
     m_printData = data;
 
@@ -1125,18 +1144,18 @@ wxGtkPrintDC::wxGtkPrintDC( const wxPrintData& data )
     gs_cairo->cairo_translate(m_cairo, -ml, -mt);
 }
 
-wxGtkPrintDC::~wxGtkPrintDC()
+wxGtkPrinterDCImpl::~wxGtkPrinterDCImpl()
 {
     g_object_unref(m_context);
     g_object_unref(m_layout);
 }
 
-bool wxGtkPrintDC::IsOk() const
+bool wxGtkPrinterDCImpl::IsOk() const
 {
     return m_gpc != NULL;
 }
 
-bool wxGtkPrintDC::DoFloodFill(wxCoord WXUNUSED(x1),
+bool wxGtkPrinterDCImpl::DoFloodFill(wxCoord WXUNUSED(x1),
                                wxCoord WXUNUSED(y1),
                                const wxColour& WXUNUSED(col),
                                int WXUNUSED(style))
@@ -1147,7 +1166,7 @@ bool wxGtkPrintDC::DoFloodFill(wxCoord WXUNUSED(x1),
     return false;
 }
 
-void wxGtkPrintDC::DoGradientFillConcentric(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, const wxPoint& circleCenter)
+void wxGtkPrinterDCImpl::DoGradientFillConcentric(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, const wxPoint& circleCenter)
 {
     wxCoord xC = circleCenter.x;
     wxCoord yC = circleCenter.y;
@@ -1193,7 +1212,7 @@ void wxGtkPrintDC::DoGradientFillConcentric(const wxRect& rect, const wxColour&
     CalcBoundingBox(xR+w, yR+h);
 }
 
-void wxGtkPrintDC::DoGradientFillLinear(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, wxDirection nDirection)
+void wxGtkPrinterDCImpl::DoGradientFillLinear(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, wxDirection nDirection)
 {
     wxCoord x = rect.x;
     wxCoord y = rect.y;
@@ -1243,7 +1262,7 @@ void wxGtkPrintDC::DoGradientFillLinear(const wxRect& rect, const wxColour& init
     CalcBoundingBox(x+w, y+h);
 }
 
-bool wxGtkPrintDC::DoGetPixel(wxCoord WXUNUSED(x1),
+bool wxGtkPrinterDCImpl::DoGetPixel(wxCoord WXUNUSED(x1),
                               wxCoord WXUNUSED(y1),
                               wxColour * WXUNUSED(col)) const
 {
@@ -1251,7 +1270,7 @@ bool wxGtkPrintDC::DoGetPixel(wxCoord WXUNUSED(x1),
     return false;
 }
 
-void wxGtkPrintDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
+void wxGtkPrinterDCImpl::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
 {
     if  (m_pen.GetStyle() == wxTRANSPARENT) return;
 
@@ -1264,7 +1283,7 @@ void wxGtkPrintDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
     CalcBoundingBox( x2, y2 );
 }
 
-void wxGtkPrintDC::DoCrossHair(wxCoord x, wxCoord y)
+void wxGtkPrinterDCImpl::DoCrossHair(wxCoord x, wxCoord y)
 {
     int w, h;
     DoGetSize(&w, &h);
@@ -1281,7 +1300,7 @@ void wxGtkPrintDC::DoCrossHair(wxCoord x, wxCoord y)
     CalcBoundingBox( w, h );
 }
 
-void wxGtkPrintDC::DoDrawArc(wxCoord x1,wxCoord y1,wxCoord x2,wxCoord y2,wxCoord xc,wxCoord yc)
+void wxGtkPrinterDCImpl::DoDrawArc(wxCoord x1,wxCoord y1,wxCoord x2,wxCoord y2,wxCoord xc,wxCoord yc)
 {
     double dx = x1 - xc;
     double dy = y1 - yc;
@@ -1333,7 +1352,7 @@ void wxGtkPrintDC::DoDrawArc(wxCoord x1,wxCoord y1,wxCoord x2,wxCoord y2,wxCoord
     CalcBoundingBox (x2, y2);
 }
 
-void wxGtkPrintDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
+void wxGtkPrinterDCImpl::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
 {
     gs_cairo->cairo_save( m_cairo );
 
@@ -1359,7 +1378,7 @@ void wxGtkPrintDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,dou
     CalcBoundingBox( x+w, y+h );
 }
 
-void wxGtkPrintDC::DoDrawPoint(wxCoord x, wxCoord y)
+void wxGtkPrinterDCImpl::DoDrawPoint(wxCoord x, wxCoord y)
 {
     if  (m_pen.GetStyle() == wxTRANSPARENT) return;
 
@@ -1372,7 +1391,7 @@ void wxGtkPrintDC::DoDrawPoint(wxCoord x, wxCoord y)
     CalcBoundingBox( x, y );
 }
 
-void wxGtkPrintDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
+void wxGtkPrinterDCImpl::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
 {
     if (m_pen.GetStyle() == wxTRANSPARENT) return;
 
@@ -1392,7 +1411,7 @@ void wxGtkPrintDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord
     gs_cairo->cairo_stroke ( m_cairo);
 }
 
-void wxGtkPrintDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
+void wxGtkPrinterDCImpl::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
 {
     if (n==0) return;
 
@@ -1426,12 +1445,12 @@ void wxGtkPrintDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoo
     gs_cairo->cairo_restore(m_cairo);
 }
 
-void wxGtkPrintDC::DoDrawPolyPolygon(int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
+void wxGtkPrinterDCImpl::DoDrawPolyPolygon(int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
 {
-    wxDC::DoDrawPolyPolygon( n, count, points, xoffset, yoffset, fillStyle );
+    wxDCImpl::DoDrawPolyPolygon( n, count, points, xoffset, yoffset, fillStyle );
 }
 
-void wxGtkPrintDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+void wxGtkPrinterDCImpl::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 {
     width--;
     height--;
@@ -1449,7 +1468,7 @@ void wxGtkPrintDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord
     CalcBoundingBox( x + width, y + height );
 }
 
-void wxGtkPrintDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
+void wxGtkPrinterDCImpl::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
 {
     width--;
     height--;
@@ -1497,7 +1516,7 @@ void wxGtkPrintDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, w
     CalcBoundingBox(x+width,y+height);
 }
 
-void wxGtkPrintDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+void wxGtkPrinterDCImpl::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 {
     width--;
     height--;
@@ -1523,7 +1542,7 @@ void wxGtkPrintDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord he
 }
 
 #if wxUSE_SPLINES
-void wxGtkPrintDC::DoDrawSpline(const wxPointList *points)
+void wxGtkPrinterDCImpl::DoDrawSpline(const wxPointList *points)
 {
     SetPen (m_pen);
 
@@ -1582,7 +1601,7 @@ void wxGtkPrintDC::DoDrawSpline(const wxPointList *points)
 }
 #endif // wxUSE_SPLINES
 
-bool wxGtkPrintDC::DoBlit(wxCoord xdest, wxCoord ydest,
+bool wxGtkPrinterDCImpl::DoBlit(wxCoord xdest, wxCoord ydest,
                           wxCoord width, wxCoord height,
                           wxDC *source, wxCoord xsrc, wxCoord ysrc,
                           int rop, bool useMask,
@@ -1602,19 +1621,19 @@ bool wxGtkPrintDC::DoBlit(wxCoord xdest, wxCoord ydest,
     memDC.SelectObject(wxNullBitmap);
 
     // Draw bitmap. scaling and positioning is done there.
-    DrawBitmap( bitmap, xdest, ydest, useMask );
+    GetOwner()->DrawBitmap( bitmap, xdest, ydest, useMask );
 
     return true;
 }
 
-void wxGtkPrintDC::DoDrawIcon( const wxIcon& icon, wxCoord x, wxCoord y )
+void wxGtkPrinterDCImpl::DoDrawIcon( const wxIcon& icon, wxCoord x, wxCoord y )
 {
     DoDrawBitmap( icon, x, y, true );
 }
 
-void wxGtkPrintDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool useMask )
+void wxGtkPrinterDCImpl::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool useMask )
 {
-    wxCHECK_RET( bitmap.IsOk(), wxT("Invalid bitmap in wxGtkPrintDC::DoDrawBitmap"));
+    wxCHECK_RET( bitmap.IsOk(), wxT("Invalid bitmap in wxGtkPrinterDCImpl::DoDrawBitmap"));
 
     cairo_surface_t* surface;
     x = wxCoord(XLOG2DEV(x));
@@ -1725,12 +1744,12 @@ void wxGtkPrintDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, b
     gs_cairo->cairo_restore(m_cairo);
 }
 
-void wxGtkPrintDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y )
+void wxGtkPrinterDCImpl::DoDrawText(const wxString& text, wxCoord x, wxCoord y )
 {
     DoDrawRotatedText( text, x, y, 0.0 );
 }
 
-void wxGtkPrintDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
+void wxGtkPrinterDCImpl::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
 {
     double xx = XLOG2DEV(x);
     double yy = YLOG2DEV(y);
@@ -1842,7 +1861,7 @@ void wxGtkPrintDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
     CalcBoundingBox (x + w, y + h);
 }
 
-void wxGtkPrintDC::Clear()
+void wxGtkPrinterDCImpl::Clear()
 {
 // Clear does nothing for printing, but keep the code
 // for later reuse 
@@ -1855,7 +1874,7 @@ void wxGtkPrintDC::Clear()
 */
 }
 
-void wxGtkPrintDC::SetFont( const wxFont& font )
+void wxGtkPrinterDCImpl::SetFont( const wxFont& font )
 {
     m_font = font;
 
@@ -1876,7 +1895,7 @@ void wxGtkPrintDC::SetFont( const wxFont& font )
     }
 }
 
-void wxGtkPrintDC::SetPen( const wxPen& pen )
+void wxGtkPrinterDCImpl::SetPen( const wxPen& pen )
 {
     if (!pen.Ok()) return;
 
@@ -1955,7 +1974,7 @@ void wxGtkPrintDC::SetPen( const wxPen& pen )
     }
 }
 
-void wxGtkPrintDC::SetBrush( const wxBrush& brush )
+void wxGtkPrinterDCImpl::SetBrush( const wxBrush& brush )
 {
     if (!brush.Ok()) return;
 
@@ -2048,7 +2067,7 @@ void wxGtkPrintDC::SetBrush( const wxBrush& brush )
     }
 }
 
-void wxGtkPrintDC::SetLogicalFunction( int function )
+void wxGtkPrinterDCImpl::SetLogicalFunction( int function )
 {
     if (function == wxCLEAR)
         gs_cairo->cairo_set_operator (m_cairo, CAIRO_OPERATOR_CLEAR);
@@ -2066,7 +2085,7 @@ void wxGtkPrintDC::SetLogicalFunction( int function )
         gs_cairo->cairo_set_operator (m_cairo, CAIRO_OPERATOR_SOURCE);
 }
 
-void wxGtkPrintDC::SetBackground( const wxBrush& brush )
+void wxGtkPrinterDCImpl::SetBackground( const wxBrush& brush )
 {
     m_backgroundBrush = brush;
     gs_cairo->cairo_save(m_cairo);
@@ -2077,7 +2096,7 @@ void wxGtkPrintDC::SetBackground( const wxBrush& brush )
     gs_cairo->cairo_restore(m_cairo);
 }
 
-void wxGtkPrintDC::SetBackgroundMode(int mode)
+void wxGtkPrinterDCImpl::SetBackgroundMode(int mode)
 {
     if (mode == wxSOLID)
         m_backgroundMode = wxSOLID;
@@ -2085,38 +2104,38 @@ void wxGtkPrintDC::SetBackgroundMode(int mode)
         m_backgroundMode = wxTRANSPARENT;
 }
 
-void wxGtkPrintDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+void wxGtkPrinterDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 {
     gs_cairo->cairo_rectangle ( m_cairo, XLOG2DEV(x), YLOG2DEV(y), XLOG2DEVREL(width), YLOG2DEVREL(height));
     gs_cairo->cairo_clip(m_cairo);
 }
 
-void wxGtkPrintDC::DestroyClippingRegion()
+void wxGtkPrinterDCImpl::DestroyClippingRegion()
 {
     gs_cairo->cairo_reset_clip(m_cairo);
 }
 
-bool wxGtkPrintDC::StartDoc(const wxString& WXUNUSED(message))
+bool wxGtkPrinterDCImpl::StartDoc(const wxString& WXUNUSED(message))
 {
     return true;
 }
 
-void wxGtkPrintDC::EndDoc()
+void wxGtkPrinterDCImpl::EndDoc()
 {
     return;
 }
 
-void wxGtkPrintDC::StartPage()
+void wxGtkPrinterDCImpl::StartPage()
 {
     return;
 }
 
-void wxGtkPrintDC::EndPage()
+void wxGtkPrinterDCImpl::EndPage()
 {
     return;
 }
 
-wxCoord wxGtkPrintDC::GetCharHeight() const
+wxCoord wxGtkPrinterDCImpl::GetCharHeight() const
 {
     pango_layout_set_text( m_layout, "H", 1 );
 
@@ -2126,7 +2145,7 @@ wxCoord wxGtkPrintDC::GetCharHeight() const
     return wxRound( h * m_PS2DEV );
 }
 
-wxCoord wxGtkPrintDC::GetCharWidth() const
+wxCoord wxGtkPrinterDCImpl::GetCharWidth() const
 {
     pango_layout_set_text( m_layout, "H", 1 );
 
@@ -2136,7 +2155,7 @@ wxCoord wxGtkPrintDC::GetCharWidth() const
     return wxRound( w * m_PS2DEV );
 }
 
-void wxGtkPrintDC::DoGetTextExtent(const wxString& string, wxCoord *width, wxCoord *height,
+void wxGtkPrinterDCImpl::DoGetTextExtent(const wxString& string, wxCoord *width, wxCoord *height,
                      wxCoord *descent,
                      wxCoord *externalLeading,
                      const wxFont *theFont ) const
@@ -2194,7 +2213,7 @@ void wxGtkPrintDC::DoGetTextExtent(const wxString& string, wxCoord *width, wxCoo
     pango_layout_set_font_description( m_layout, m_fontdesc );
 }
 
-void wxGtkPrintDC::DoGetSize(int* width, int* height) const
+void wxGtkPrinterDCImpl::DoGetSize(int* width, int* height) const
 {
     GtkPageSetup *setup = gtk_print_context_get_page_setup( m_gpc );
 
@@ -2204,7 +2223,7 @@ void wxGtkPrintDC::DoGetSize(int* width, int* height) const
         *height = wxRound( gtk_page_setup_get_paper_height( setup, GTK_UNIT_POINTS ) * m_PS2DEV );
 }
 
-void wxGtkPrintDC::DoGetSizeMM(int *width, int *height) const
+void wxGtkPrinterDCImpl::DoGetSizeMM(int *width, int *height) const
 {
     GtkPageSetup *setup = gtk_print_context_get_page_setup( m_gpc );
 
@@ -2214,23 +2233,28 @@ void wxGtkPrintDC::DoGetSizeMM(int *width, int *height) const
         *height = wxRound( gtk_page_setup_get_paper_height( setup, GTK_UNIT_MM ) );
 }
 
-wxSize wxGtkPrintDC::GetPPI() const
+wxSize wxGtkPrinterDCImpl::GetPPI() const
 {
     return wxSize( (int)m_resolution, (int)m_resolution );
 }
 
-void wxGtkPrintDC::SetPrintData(const wxPrintData& data)
+void wxGtkPrinterDCImpl::SetPrintData(const wxPrintData& data)
 {
     m_printData = data;
 }
 
-void wxGtkPrintDC::SetResolution(int WXUNUSED(ppi))
+// overriden for wxPrinterDC Impl
+
+wxRect wxGtkPrinterDCImpl::GetPaperRect()
 {
-    // We can't change ppi of the GtkPrintContext.
-    // TODO: should we really support this?
+    // Does GtkPrint support printer margins?
+    int w = 0;
+    int h = 0;
+    DoGetSize( &w, &h );
+    return wxRect( 0,0,w,h );
 }
 
-int wxGtkPrintDC::GetResolution()
+int wxGtkPrinterDCImpl::GetResolution()
 {
     return m_resolution;
 }
@@ -2242,25 +2266,59 @@ int wxGtkPrintDC::GetResolution()
 IMPLEMENT_CLASS(wxGtkPrintPreview, wxPrintPreviewBase)
 
 void wxGtkPrintPreview::Init(wxPrintout * WXUNUSED(printout),
-                                    wxPrintout * WXUNUSED(printoutForPrinting))
+                             wxPrintout * WXUNUSED(printoutForPrinting),
+                             wxPrintData *data)
 {
+    // convert wxPrintQuality to resolution (input pointer can be NULL)
+    wxPrintQuality quality = data ? data->GetQuality() : wxPRINT_QUALITY_MEDIUM;
+    switch ( quality )
+    {
+        case wxPRINT_QUALITY_HIGH:
+            m_resolution = 1200;
+            break;
+
+        case wxPRINT_QUALITY_LOW:
+            m_resolution = 300;
+            break;
+
+        case wxPRINT_QUALITY_DRAFT:
+            m_resolution = 150;
+            break;
+
+        default:
+            if ( quality > 0 )
+            {
+                // positive values directly indicate print resolution
+                m_resolution = quality;
+                break;
+            }
+
+            wxFAIL_MSG( "unknown print quality" );
+            // fall through
+
+        case wxPRINT_QUALITY_MEDIUM:
+            m_resolution = 600;
+            break;
+
+    }
+
     DetermineScaling();
 }
 
 wxGtkPrintPreview::wxGtkPrintPreview(wxPrintout *printout,
-                                                   wxPrintout *printoutForPrinting,
-                                                   wxPrintDialogData *data)
-                        : wxPrintPreviewBase(printout, printoutForPrinting, data)
+                                     wxPrintout *printoutForPrinting,
+                                     wxPrintDialogData *data)
+                 : wxPrintPreviewBase(printout, printoutForPrinting, data)
 {
-    Init(printout, printoutForPrinting);
+    Init(printout, printoutForPrinting, data ? &data->GetPrintData() : NULL);
 }
 
 wxGtkPrintPreview::wxGtkPrintPreview(wxPrintout *printout,
-                                                   wxPrintout *printoutForPrinting,
-                                                   wxPrintData *data)
-                        : wxPrintPreviewBase(printout, printoutForPrinting, data)
+                                     wxPrintout *printoutForPrinting,
+                                     wxPrintData *data)
+                 : wxPrintPreviewBase(printout, printoutForPrinting, data)
 {
-    Init(printout, printoutForPrinting);
+    Init(printout, printoutForPrinting, data);
 }
 
 wxGtkPrintPreview::~wxGtkPrintPreview()
@@ -2292,15 +2350,13 @@ void wxGtkPrintPreview::DetermineScaling()
         m_previewPrintout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
                                          (int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
 
-        // TODO !!!!!!!!!!!!!!!      
-        int resolution = 600;
-        m_previewPrintout->SetPPIPrinter( resolution, resolution );
+        m_previewPrintout->SetPPIPrinter( m_resolution, m_resolution );
 
         // Get width and height in points (1/72th of an inch)
         wxSize sizeDevUnits(paper->GetSizeDeviceUnits());
 
-        sizeDevUnits.x = wxRound((double)sizeDevUnits.x * (double)resolution / 72.0);
-        sizeDevUnits.y = wxRound((double)sizeDevUnits.y * (double)resolution / 72.0);
+        sizeDevUnits.x = wxRound((double)sizeDevUnits.x * (double)m_resolution / 72.0);
+        sizeDevUnits.y = wxRound((double)sizeDevUnits.y * (double)m_resolution / 72.0);
         wxSize sizeTenthsMM(paper->GetSize());
         wxSize sizeMM(sizeTenthsMM.x / 10, sizeTenthsMM.y / 10);
 
@@ -2321,7 +2377,7 @@ 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)resolution;
+        m_previewScaleX = 0.8 * 72.0 / (double)m_resolution;
         m_previewScaleY = m_previewScaleX;
     }
 }