Ensure there is valid context for DrawRectangle

[wxWidgets.git] / src / generic / printps.cpp

diff --git a/src/generic/printps.cpp b/src/generic/printps.cpp
index 90cae631fb7712866255998501bf109df2f16c1d..a264bdabc5633a6aae5a4eab1b1a02557d043658 100644 (file)
--- a/src/generic/printps.cpp
+++ b/src/generic/printps.cpp
@@ -40,7 +40,7 @@
 #include "wx/generic/printps.h"
 #include "wx/printdlg.h"
 #include "wx/generic/prntdlgg.h"
-#include "wx/generic/progdlgg.h"
+#include "wx/progdlg.h"
 #include "wx/paper.h"
 
 #include <stdlib.h>
@@ -72,7 +72,7 @@ wxPostScriptPrinter::~wxPostScriptPrinter()
 bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
 {
     sm_abortIt = false;
-    sm_abortWindow = (wxWindow *) NULL;
+    sm_abortWindow = NULL;
 
     if (!printout)
     {
@@ -80,8 +80,6 @@ bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool pro
         return false;
     }
 
-    printout->SetIsPreview(false);
-
     if (m_printDialogData.GetMinPage() < 1)
         m_printDialogData.SetMinPage(1);
     if (m_printDialogData.GetMaxPage() < 1)
@@ -101,7 +99,7 @@ bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool pro
     }
 
     // May have pressed cancel.
-    if (!dc || !dc->Ok())
+    if (!dc || !dc->IsOk())
     {
         if (dc) delete dc;
         sm_lastError = wxPRINTER_ERROR;
@@ -113,8 +111,8 @@ bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool pro
 
     printout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
                             (int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
-    printout->SetPPIPrinter( wxPostScriptDC::GetResolution(),
-                             wxPostScriptDC::GetResolution() );
+    printout->SetPPIPrinter( dc->GetResolution(),
+                             dc->GetResolution() );
 
     // Set printout parameters
     printout->SetDC(dc);
@@ -232,7 +230,7 @@ bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool pro
 
 wxDC* wxPostScriptPrinter::PrintDialog(wxWindow *parent)
 {
-    wxDC* dc = (wxDC*) NULL;
+    wxDC* dc = NULL;
 
     wxGenericPrintDialog dialog( parent, &m_printDialogData );
     if (dialog.ShowModal() == wxID_OK)
@@ -332,16 +330,20 @@ void wxPostScriptPrintPreview::DetermineScaling()
 
     if (paper)
     {
-        wxSize ScreenPixels = wxGetDisplaySize();
-        wxSize ScreenMM = wxGetDisplaySizeMM();
+        int resolution = 600;  // TODO, this is correct, but get this from wxPSDC somehow
+
+        const wxSize screenPPI = wxGetDisplayPPI();
+        int logPPIScreenX = screenPPI.GetWidth();
+        int logPPIScreenY = screenPPI.GetHeight();
+        int logPPIPrinterX = resolution;
+        int logPPIPrinterY = resolution;
 
-        m_previewPrintout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
-                                         (int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
-        m_previewPrintout->SetPPIPrinter(wxPostScriptDC::GetResolution(), wxPostScriptDC::GetResolution());
+        m_previewPrintout->SetPPIScreen( logPPIScreenX, logPPIScreenY );
+        m_previewPrintout->SetPPIPrinter( logPPIPrinterX, logPPIPrinterY );
 
         wxSize sizeDevUnits(paper->GetSizeDeviceUnits());
-        sizeDevUnits.x = (wxCoord)((float)sizeDevUnits.x * wxPostScriptDC::GetResolution() / 72.0);
-        sizeDevUnits.y = (wxCoord)((float)sizeDevUnits.y * wxPostScriptDC::GetResolution() / 72.0);
+        sizeDevUnits.x = (wxCoord)((float)sizeDevUnits.x * resolution / 72.0);
+        sizeDevUnits.y = (wxCoord)((float)sizeDevUnits.y * resolution / 72.0);
         wxSize sizeTenthsMM(paper->GetSize());
         wxSize sizeMM(sizeTenthsMM.x / 10, sizeTenthsMM.y / 10);
 
@@ -362,8 +364,8 @@ void wxPostScriptPrintPreview::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 = (float)0.8 * 72.0 / (float)wxPostScriptDC::GetResolution();
-        m_previewScaleY = m_previewScaleX;
+        m_previewScaleX = float(logPPIScreenX) / logPPIPrinterX;
+        m_previewScaleY = float(logPPIScreenY) / logPPIPrinterY;
     }
 }