Added creation of printer DC to printer factory.

Added wxPrintData ctor to wxGnomePrintDC.
Added wxGnomePrintPreview.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42345 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/gnome/gprint.h

@@ -78,6 +78,8 @@ public:
     virtual wxPageSetupDialogBase *CreatePageSetupDialog( wxWindow *parent,
                                                           wxPageSetupDialogData * data = NULL );
 
+    virtual wxDC* CreatePrinterDC( const wxPrintData& data );
+
     virtual bool HasPrintSetupDialog();
     virtual wxDialog *CreatePrintSetupDialog( wxWindow *parent, wxPrintData *data );
     virtual bool HasOwnPrintToFile();
@@ -199,6 +201,7 @@ class wxGnomePrintDC: public wxDC
 {
 public:
     wxGnomePrintDC( wxGnomePrinter *printer );
+    wxGnomePrintDC( const wxPrintData& data );
     virtual ~wxGnomePrintDC();
 
     bool Ok() const { return IsOk(); }
@@ -275,6 +278,7 @@ private:
     static float ms_PSScaleFactor;
 
 private:
+    wxPrintData             m_printData;
     PangoContext           *m_context;
     PangoLayout            *m_layout;
     PangoFontDescription   *m_fontdesc;
@@ -286,6 +290,7 @@ private:
 
     wxGnomePrinter         *m_printer;
     GnomePrintContext      *m_gpc;
+    GnomePrintJob*          m_job; // only used and destroyed when created with wxPrintData
 
     void makeEllipticalPath(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
     
@@ -355,6 +360,34 @@ private:
     DECLARE_NO_COPY_CLASS(wxGnomePrintDC)
 };
 
+// ----------------------------------------------------------------------------
+// wxGnomePrintPreview: programmer creates an object of this class to preview a
+// wxPrintout.
+// ----------------------------------------------------------------------------
+
+class wxGnomePreview : public wxPrintPreviewBase
+{
+public:
+    wxGnomePrintPreview(wxPrintout *printout,
+                             wxPrintout *printoutForPrinting = (wxPrintout *) NULL,
+                             wxPrintDialogData *data = (wxPrintDialogData *) NULL);
+    wxGnomePrintPreview(wxPrintout *printout,
+                             wxPrintout *printoutForPrinting,
+                             wxPrintData *data);
+
+    virtual ~wxGnomePrintPreview();
+
+    virtual bool Print(bool interactive);
+    virtual void DetermineScaling();
+
+private:
+    void Init(wxPrintout *printout, wxPrintout *printoutForPrinting);
+
+private:
+    DECLARE_CLASS(wxGnomePrintPreview)
+};
+
+
 #endif
     // wxUSE_LIBGNOMEPRINT
 

include/wx/prntbase.h

@@ -77,6 +77,8 @@ public:
     virtual wxPageSetupDialogBase *CreatePageSetupDialog( wxWindow *parent,
                                                           wxPageSetupDialogData * data = NULL ) = 0;
 
+    virtual wxDC* CreatePrinterDC( const wxPrintData& data ) = 0;
+
     // What to do and what to show in the wxPrintDialog
     // a) Use the generic print setup dialog or a native one?
     virtual bool HasPrintSetupDialog() = 0;
@@ -119,6 +121,8 @@ public:
     virtual wxPageSetupDialogBase *CreatePageSetupDialog( wxWindow *parent,
                                                           wxPageSetupDialogData * data = NULL );
 
+    virtual wxDC* CreatePrinterDC( const wxPrintData& data );
+
     virtual bool HasPrintSetupDialog();
     virtual wxDialog *CreatePrintSetupDialog( wxWindow *parent, wxPrintData *data );
     virtual bool HasOwnPrintToFile();

src/common/prntbase.cpp

@@ -43,6 +43,7 @@
 #include "wx/prntbase.h"
 #include "wx/printdlg.h"
 #include "wx/print.h"
+#include "wx/dcprint.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -54,6 +55,7 @@
 #include "wx/mac/private/print.h"
 #else
 #include "wx/generic/prntdlgg.h"
+#include "wx/dcps.h"
 #endif
 
 #ifdef __WXMSW__
@@ -201,6 +203,17 @@ wxDialog *wxNativePrintFactory::CreatePrintSetupDialog( wxWindow *parent,
 #endif
 }
 
+wxDC* wxNativePrintFactory::CreatePrinterDC( const wxPrintData& data )
+{
+#if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
+    return new wxPrinterDC(data);
+#elif defined(__WXMAC__)
+    return new wxPrinterDC(data);
+#else
+    return new wxPrinterDC(data);
+#endif
+}
+
 bool wxNativePrintFactory::HasOwnPrintToFile()
 {
     // Only relevant for PostScript and here the

src/gtk/gnome/gprint.cpp

@@ -309,14 +309,14 @@ wxPrintPreviewBase *wxGnomePrintFactory::CreatePrintPreview( wxPrintout *preview
                                                     wxPrintout *printout,
                                                     wxPrintDialogData *data )
 {
-    return new wxPostScriptPrintPreview( preview, printout, data );
+    return new wxGnomePrintPreview( preview, printout, data );
 }
 
 wxPrintPreviewBase *wxGnomePrintFactory::CreatePrintPreview( wxPrintout *preview,
                                                     wxPrintout *printout,
                                                     wxPrintData *data )
 {
-    return new wxPostScriptPrintPreview( preview, printout, data );
+    return new wxGnomePrintPreview( preview, printout, data );
 }
 
 wxPrintDialogBase *wxGnomePrintFactory::CreatePrintDialog( wxWindow *parent,
@@ -354,6 +354,11 @@ wxDialog *wxGnomePrintFactory::CreatePrintSetupDialog( wxWindow *parent, wxPrint
     return NULL;
 }
 
+wxDC* wxGnomePrintFactory::CreatePrinterDC( const wxPrintData& data )
+{
+    return new wxGnomePrintDC(data);
+}
+
 bool wxGnomePrintFactory::HasOwnPrintToFile()
 {
     return true;
@@ -835,6 +840,7 @@ wxGnomePrintDC::wxGnomePrintDC( wxGnomePrinter *printer )
     m_printer = printer;
 
     m_gpc = printer->GetPrintContext();
+    m_job = NULL; // only used and destroyed when created with wxPrintData
 
     m_layout = gs_lgp->gnome_print_pango_create_layout( m_gpc );
     m_fontdesc = pango_font_description_from_string( "Sans 12" );
@@ -847,8 +853,33 @@ wxGnomePrintDC::wxGnomePrintDC( wxGnomePrinter *printer )
     m_signY = -1;  // default y-axis bottom up -> top down
 }
 
+wxGnomePrintDC::wxGnomePrintDC( const wxPrintData& data )
+{
+    m_printer = NULL;
+    m_printData = data;
+
+    wxGnomePrintNativeData *native =
+        (wxGnomePrintNativeData*) m_printData.GetNativeData();
+
+    GnomePrintJob *job = gs_lgp->gnome_print_job_new( native->GetPrintConfig() );
+    m_gpc = gs_lgp->gnome_print_job_get_context (job);
+    m_job = job; // only used and destroyed when created with wxPrintData
+
+    m_layout = gs_lgp->gnome_print_pango_create_layout( m_gpc );
+    m_fontdesc = pango_font_description_from_string( "Sans 12" );
+
+    m_currentRed = 0;
+    m_currentBlue = 0;
+    m_currentGreen = 0;
+
+    m_signX =  1;  // default x-axis left to right
+    m_signY = -1;  // default y-axis bottom up -> top down    
+}
+
 wxGnomePrintDC::~wxGnomePrintDC()
 {
+    if (m_job)
+        g_object_unref (job);
 }
 
 bool wxGnomePrintDC::IsOk() const
@@ -1839,5 +1870,95 @@ void wxGnomePrintModule::OnExit()
 
 IMPLEMENT_DYNAMIC_CLASS(wxGnomePrintModule, wxModule)
 
+// ----------------------------------------------------------------------------
+// Print preview
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_CLASS(wxGnomePrintPreview, wxPrintPreviewBase)
+
+void wxGnomePrintPreview::Init(wxPrintout * WXUNUSED(printout),
+                                    wxPrintout * WXUNUSED(printoutForPrinting))
+{
+    DetermineScaling();
+}
+
+wxGnomePrintPreview::wxGnomePrintPreview(wxPrintout *printout,
+                                                   wxPrintout *printoutForPrinting,
+                                                   wxPrintDialogData *data)
+                        : wxPrintPreviewBase(printout, printoutForPrinting, data)
+{
+    Init(printout, printoutForPrinting);
+}
+
+wxGnomePrintPreview::wxGnomePrintPreview(wxPrintout *printout,
+                                                   wxPrintout *printoutForPrinting,
+                                                   wxPrintData *data)
+                        : wxPrintPreviewBase(printout, printoutForPrinting, data)
+{
+    Init(printout, printoutForPrinting);
+}
+
+wxGnomePrintPreview::~wxGnomePrintPreview()
+{
+}
+
+bool wxGnomePrintPreview::Print(bool interactive)
+{
+    if (!m_printPrintout)
+        return false;
+
+    wxPrinter printer(& m_printDialogData);
+    return printer.Print(m_previewFrame, m_printPrintout, interactive);
+}
+
+void wxGnomePrintPreview::DetermineScaling()
+{
+    wxPaperSize paperType = m_printDialogData.GetPrintData().GetPaperId();
+    if (paperType == wxPAPER_NONE)
+        paperType = wxPAPER_NONE;
+
+    wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(paperType);
+    if (!paper)
+        paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
+
+    if (paper)
+    {
+        wxSize ScreenPixels = wxGetDisplaySize();
+        wxSize ScreenMM = wxGetDisplaySizeMM();
+
+        m_previewPrintout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
+                                         (int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
+        m_previewPrintout->SetPPIPrinter(wxGnomePrintDC::GetResolution(), wxGnomePrintDC::GetResolution());
+
+        wxSize sizeDevUnits(paper->GetSizeDeviceUnits());
+        
+        // TODO: get better resolution information from wxGnomePrintDC, if possible.
+
+        sizeDevUnits.x = (wxCoord)((float)sizeDevUnits.x * wxGnomePrintDC::GetResolution() / 72.0);
+        sizeDevUnits.y = (wxCoord)((float)sizeDevUnits.y * wxGnomePrintDC::GetResolution() / 72.0);
+        wxSize sizeTenthsMM(paper->GetSize());
+        wxSize sizeMM(sizeTenthsMM.x / 10, sizeTenthsMM.y / 10);
+
+        // If in landscape mode, we need to swap the width and height.
+        if ( m_printDialogData.GetPrintData().GetOrientation() == wxLANDSCAPE )
+        {
+            m_pageWidth = sizeDevUnits.y;
+            m_pageHeight = sizeDevUnits.x;
+            m_previewPrintout->SetPageSizeMM(sizeMM.y, sizeMM.x);
+            m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
+        }
+        else
+        {
+            m_pageWidth = sizeDevUnits.x;
+            m_pageHeight = sizeDevUnits.y;
+            m_previewPrintout->SetPageSizeMM(sizeMM.x, sizeMM.y);
+            m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
+        }
+
+        // At 100%, the page should look about page-size on the screen.
+        m_previewScale = (float)0.8 * 72.0 / (float)wxGnomePrintDC::GetResolution();
+    }
+}
+
 #endif
     // wxUSE_LIBGNOMEPRINT