same as r57054 in 2.8

[wxWidgets.git] / src / common / prntbase.cpp

diff --git a/src/common/prntbase.cpp b/src/common/prntbase.cpp
index a71ce9e69d7deaae833e7fb485a8277a32907bbb..4da0d2fa96a56cd02a27543bf5df459ad2ef08d4 100644 (file)
--- a/src/common/prntbase.cpp
+++ b/src/common/prntbase.cpp
@@ -52,9 +52,14 @@
 
 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 #include "wx/msw/printdlg.h"
 
 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 #include "wx/msw/printdlg.h"

+#include "wx/msw/dcprint.h"

 #elif defined(__WXMAC__)
 #elif defined(__WXMAC__)

-#include "wx/mac/printdlg.h"
-#include "wx/mac/private/print.h"
+#include "wx/osx/printdlg.h"
+#include "wx/osx/private/print.h"
+#include "wx/osx/dcprint.h"
+#elif defined(__WXPM__)
+#include "wx/os2/dcprint.h"
+#include "wx/generic/prntdlgg.h"

 #else
 #include "wx/generic/prntdlgg.h"
 #include "wx/dcps.h"
 #else
 #include "wx/generic/prntdlgg.h"
 #include "wx/dcps.h"


@@ -205,14 +210,12 @@ wxDialog *wxNativePrintFactory::CreatePrintSetupDialog( wxWindow *parent,
 #endif
 }
 
 #endif
 }
 

-wxDC* wxNativePrintFactory::CreatePrinterDC( const wxPrintData& data )
+wxDCImpl* wxNativePrintFactory::CreatePrinterDCImpl( wxPrinterDC *owner, const wxPrintData& data )

 {
 {

-#if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
-    return new wxPrinterDC(data);
-#elif defined(__WXMAC__)
-    return new wxPrinterDC(data);
+#if defined(__WXGTK__) || defined(__WXMOTIF__) || ( defined(__WXUNIVERSAL__) && !defined(__WXMAC__) )
+    return new wxPostScriptDCImpl( owner, data );

 #else
 #else

-    return new wxPostScriptDC(data);
+    return new wxPrinterDCImpl( owner, data );

 #endif
 }
 
 #endif
 }
 


@@ -733,28 +736,42 @@ wxRect wxPrintout::GetLogicalPageMarginsRect(const wxPageSetupDialogData& pageSe
     // Return the rectangle in logical units that corresponds to the region
     // within the page margins as specified by the given wxPageSetupDialogData
     // object.
     // Return the rectangle in logical units that corresponds to the region
     // within the page margins as specified by the given wxPageSetupDialogData
     // object.

-    wxRect paperRect = GetPaperRectPixels();
+    
+    // We get the paper size in device units and the margins in mm,
+    // so we need to calculate the conversion with this trick

     wxCoord pw, ph;
     GetPageSizePixels(&pw, &ph);
     wxCoord pw, ph;
     GetPageSizePixels(&pw, &ph);

-    wxPoint topLeft = pageSetupData.GetMarginTopLeft();
-    wxPoint bottomRight = pageSetupData.GetMarginBottomRight();

     wxCoord mw, mh;
     GetPageSizeMM(&mw, &mh);
     float mmToDeviceX = float(pw) / mw;
     float mmToDeviceY = float(ph) / mh;
     wxCoord mw, mh;
     GetPageSizeMM(&mw, &mh);
     float mmToDeviceX = float(pw) / mw;
     float mmToDeviceY = float(ph) / mh;

-    wxRect pageMarginsRect(paperRect.x + wxRound(mmToDeviceX * topLeft.x),
-        paperRect.y + wxRound(mmToDeviceY * topLeft.y),
-        paperRect.width - wxRound(mmToDeviceX * (topLeft.x + bottomRight.x)),
+
+    // paper size in device units    
+    wxRect paperRect = GetPaperRectPixels();
+    
+    // margins in mm
+    wxPoint topLeft = pageSetupData.GetMarginTopLeft();
+    wxPoint bottomRight = pageSetupData.GetMarginBottomRight();
+    
+    // calculate margins in device units
+    wxRect pageMarginsRect(
+        paperRect.x      + wxRound(mmToDeviceX * topLeft.x),
+        paperRect.y      + wxRound(mmToDeviceY * topLeft.y),
+        paperRect.width  - wxRound(mmToDeviceX * (topLeft.x + bottomRight.x)),

         paperRect.height - wxRound(mmToDeviceY * (topLeft.y + bottomRight.y)));
         paperRect.height - wxRound(mmToDeviceY * (topLeft.y + bottomRight.y)));

+        

     wxCoord w, h;
     m_printoutDC->GetSize(&w, &h);
     wxCoord w, h;
     m_printoutDC->GetSize(&w, &h);

-    if (w == pw && h == ph) {
+    if (w == pw && h == ph) 
+    {

         // this DC matches the printed page, so no scaling
         // this DC matches the printed page, so no scaling

-        return wxRect(m_printoutDC->DeviceToLogicalX(pageMarginsRect.x), 
+        return wxRect(
+            m_printoutDC->DeviceToLogicalX(pageMarginsRect.x), 

             m_printoutDC->DeviceToLogicalY(pageMarginsRect.y), 
             m_printoutDC->DeviceToLogicalXRel(pageMarginsRect.width), 
             m_printoutDC->DeviceToLogicalYRel(pageMarginsRect.height));
     }
             m_printoutDC->DeviceToLogicalY(pageMarginsRect.y), 
             m_printoutDC->DeviceToLogicalXRel(pageMarginsRect.width), 
             m_printoutDC->DeviceToLogicalYRel(pageMarginsRect.height));
     }

+    

     // This DC doesn't match the printed page, so we have to scale.
     float scaleX = float(w) / pw;
     float scaleY = float(h) / ph;
     // This DC doesn't match the printed page, so we have to scale.
     float scaleX = float(w) / pw;
     float scaleY = float(h) / ph;


@@ -767,17 +784,18 @@ wxRect wxPrintout::GetLogicalPageMarginsRect(const wxPageSetupDialogData& pageSe
 void wxPrintout::SetLogicalOrigin(wxCoord x, wxCoord y)
 {
     // Set the device origin by specifying a point in logical coordinates.
 void wxPrintout::SetLogicalOrigin(wxCoord x, wxCoord y)
 {
     // Set the device origin by specifying a point in logical coordinates.

-    m_printoutDC->SetDeviceOrigin(m_printoutDC->LogicalToDeviceX(x), 
-        m_printoutDC->LogicalToDeviceY(y));
+    m_printoutDC->SetDeviceOrigin(
+        m_printoutDC->LogicalToDeviceX(x), 
+        m_printoutDC->LogicalToDeviceY(y) );

 }
     
 void wxPrintout::OffsetLogicalOrigin(wxCoord xoff, wxCoord yoff)
 {
     // Offset the device origin by a specified distance in device coordinates.
 }
     
 void wxPrintout::OffsetLogicalOrigin(wxCoord xoff, wxCoord yoff)
 {
     // Offset the device origin by a specified distance in device coordinates.

-    wxCoord x = m_printoutDC->LogicalToDeviceX(0);
-    wxCoord y = m_printoutDC->LogicalToDeviceY(0);
-    m_printoutDC->SetDeviceOrigin(x + m_printoutDC->LogicalToDeviceXRel(xoff), 
-        y + m_printoutDC->LogicalToDeviceYRel(yoff));
+    wxPoint dev_org = m_printoutDC->GetDeviceOrigin();
+    m_printoutDC->SetDeviceOrigin(
+        dev_org.x + m_printoutDC->LogicalToDeviceXRel(xoff), 
+        dev_org.y + m_printoutDC->LogicalToDeviceYRel(yoff) );

 }
     
 
 }
     
 


@@ -790,6 +808,7 @@ IMPLEMENT_CLASS(wxPreviewCanvas, wxWindow)
 BEGIN_EVENT_TABLE(wxPreviewCanvas, wxScrolledWindow)
     EVT_PAINT(wxPreviewCanvas::OnPaint)
     EVT_CHAR(wxPreviewCanvas::OnChar)
 BEGIN_EVENT_TABLE(wxPreviewCanvas, wxScrolledWindow)
     EVT_PAINT(wxPreviewCanvas::OnPaint)
     EVT_CHAR(wxPreviewCanvas::OnChar)

+    EVT_IDLE(wxPreviewCanvas::OnIdle)

     EVT_SYS_COLOUR_CHANGED(wxPreviewCanvas::OnSysColourChanged)
 #if wxUSE_MOUSEWHEEL
     EVT_MOUSEWHEEL(wxPreviewCanvas::OnMouseWheel)
     EVT_SYS_COLOUR_CHANGED(wxPreviewCanvas::OnSysColourChanged)
 #if wxUSE_MOUSEWHEEL
     EVT_MOUSEWHEEL(wxPreviewCanvas::OnMouseWheel)


@@ -841,6 +860,25 @@ void wxPreviewCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
     }
 }
 
     }
 }
 

+void wxPreviewCanvas::OnIdle(wxIdleEvent& event)
+{
+    event.Skip();
+
+    // prevent UpdatePageRendering() from being called recursively:
+    static bool s_inIdle = false;
+    if ( s_inIdle )
+        return;
+    s_inIdle = true;
+
+    if ( m_printPreview )
+    {
+        if ( m_printPreview->UpdatePageRendering() )
+            Refresh();
+    }
+
+    s_inIdle = false;
+}
+

 // Responds to colour changes, and passes event on to children.
 void wxPreviewCanvas::OnSysColourChanged(wxSysColourChangedEvent& event)
 {
 // Responds to colour changes, and passes event on to children.
 void wxPreviewCanvas::OnSysColourChanged(wxSysColourChangedEvent& event)
 {


@@ -863,20 +901,14 @@ void wxPreviewCanvas::OnSysColourChanged(wxSysColourChangedEvent& event)
 void wxPreviewCanvas::OnChar(wxKeyEvent &event)
 {
     wxPreviewControlBar* controlBar = ((wxPreviewFrame*) GetParent())->GetControlBar();
 void wxPreviewCanvas::OnChar(wxKeyEvent &event)
 {
     wxPreviewControlBar* controlBar = ((wxPreviewFrame*) GetParent())->GetControlBar();

-    if (event.GetKeyCode() == WXK_ESCAPE)
-    {
-        ((wxPreviewFrame*) GetParent())->Close(true);
-        return;
-    }
-    else if (event.GetKeyCode() == WXK_TAB)
-    {
-        controlBar->OnGoto();
-        return;
-    }
-    else if (event.GetKeyCode() == WXK_RETURN)
+    switch (event.GetKeyCode())

     {
     {

-        controlBar->OnPrint();
-        return;
+        case WXK_TAB:
+            controlBar->OnGoto();
+            return;
+        case WXK_RETURN:
+            controlBar->OnPrint();
+            return;

     }
 
     if (!event.ControlDown())
     }
 
     if (!event.ControlDown())


@@ -1209,9 +1241,22 @@ int wxPreviewControlBar::GetZoomControl()
 IMPLEMENT_CLASS(wxPreviewFrame, wxFrame)
 
 BEGIN_EVENT_TABLE(wxPreviewFrame, wxFrame)
 IMPLEMENT_CLASS(wxPreviewFrame, wxFrame)
 
 BEGIN_EVENT_TABLE(wxPreviewFrame, wxFrame)

+    EVT_CHAR_HOOK(wxPreviewFrame::OnChar)

     EVT_CLOSE(wxPreviewFrame::OnCloseWindow)
 END_EVENT_TABLE()
 
     EVT_CLOSE(wxPreviewFrame::OnCloseWindow)
 END_EVENT_TABLE()
 

+void wxPreviewFrame::OnChar(wxKeyEvent &event)
+{
+    if ( event.GetKeyCode() == WXK_ESCAPE )
+    {
+        Close(true);
+    }
+    else
+    {
+        event.Skip();
+    }
+}
+

 wxPreviewFrame::wxPreviewFrame(wxPrintPreviewBase *preview, wxWindow *parent, const wxString& title,
                                const wxPoint& pos, const wxSize& size, long style, const wxString& name):
 wxFrame(parent, wxID_ANY, title, pos, size, style, name)
 wxPreviewFrame::wxPreviewFrame(wxPrintPreviewBase *preview, wxWindow *parent, const wxString& title,
                                const wxPoint& pos, const wxSize& size, long style, const wxString& name):
 wxFrame(parent, wxID_ANY, title, pos, size, style, name)


@@ -1247,7 +1292,9 @@ void wxPreviewFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
         m_printPreview->SetCanvas(NULL);
         m_printPreview->SetFrame(NULL);
     }
         m_printPreview->SetCanvas(NULL);
         m_printPreview->SetFrame(NULL);
     }

-    delete m_printPreview;
+
+    m_previewCanvas->SetPreview(NULL);
+    wxDELETE(m_printPreview);

 
     Destroy();
 }
 
     Destroy();
 }


@@ -1334,6 +1381,7 @@ void wxPrintPreviewBase::Init(wxPrintout *printout,
     m_previewCanvas = NULL;
     m_previewFrame = NULL;
     m_previewBitmap = NULL;
     m_previewCanvas = NULL;
     m_previewFrame = NULL;
     m_previewBitmap = NULL;

+    m_previewFailed = false;

     m_currentPage = 1;
     m_currentZoom = 70;
     m_topMargin = 40;
     m_currentPage = 1;
     m_currentZoom = 70;
     m_topMargin = 40;


@@ -1361,18 +1409,13 @@ bool wxPrintPreviewBase::SetCurrentPage(int pageNum)
         return true;
 
     m_currentPage = pageNum;
         return true;
 
     m_currentPage = pageNum;

-    if (m_previewBitmap)
-    {
-        delete m_previewBitmap;
-        m_previewBitmap = NULL;
-    }
+
+    InvalidatePreviewBitmap();

 
     if (m_previewCanvas)
     {
         AdjustScrollbars(m_previewCanvas);
 
 
     if (m_previewCanvas)
     {
         AdjustScrollbars(m_previewCanvas);
 

-        if (!RenderPage(pageNum))
-            return false;

         m_previewCanvas->Refresh();
         m_previewCanvas->SetFocus();
     }
         m_previewCanvas->Refresh();
         m_previewCanvas->SetFocus();
     }


@@ -1429,13 +1472,35 @@ void wxPrintPreviewBase::CalcRects(wxPreviewCanvas *canvas, wxRect& pageRect, wx
 }
 
 
 }
 
 

+void wxPrintPreviewBase::InvalidatePreviewBitmap()
+{
+    wxDELETE(m_previewBitmap);
+    // if there was a problem with rendering the preview, try again now
+    // that it changed in some way (less memory may be needed, for example):
+    m_previewFailed = false;
+}
+
+bool wxPrintPreviewBase::UpdatePageRendering()
+{
+    if ( m_previewBitmap )
+        return false;
+
+    if ( m_previewFailed )
+        return false;
+
+    if ( !RenderPage(m_currentPage) )
+    {
+        m_previewFailed = true; // don't waste time failing again
+        return false;
+    }
+
+    return true;
+}
+

 bool wxPrintPreviewBase::PaintPage(wxPreviewCanvas *canvas, wxDC& dc)
 {
     DrawBlankPage(canvas, dc);
 
 bool wxPrintPreviewBase::PaintPage(wxPreviewCanvas *canvas, wxDC& dc)
 {
     DrawBlankPage(canvas, dc);
 

-    if (!m_previewBitmap)
-        if (!RenderPage(m_currentPage))
-            return false;

     if (!m_previewBitmap)
         return false;
     if (!canvas)
     if (!m_previewBitmap)
         return false;
     if (!canvas)


@@ -1470,6 +1535,47 @@ void wxPrintPreviewBase::AdjustScrollbars(wxPreviewCanvas *canvas)
         canvas->SetScrollbars(10, 10, scrollUnitsX, scrollUnitsY, 0, 0, true);
 }
 
         canvas->SetScrollbars(10, 10, scrollUnitsX, scrollUnitsY, 0, 0, true);
 }
 

+bool wxPrintPreviewBase::RenderPageIntoDC(wxDC& dc, int pageNum)
+{
+    m_previewPrintout->SetDC(&dc);
+    m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
+
+    // Need to delay OnPreparePrinting() until here, so we have enough
+    // information.
+    if (!m_printingPrepared)
+    {
+        m_previewPrintout->OnPreparePrinting();
+        int selFrom, selTo;
+        m_previewPrintout->GetPageInfo(&m_minPage, &m_maxPage, &selFrom, &selTo);
+        m_printingPrepared = true;
+    }
+
+    m_previewPrintout->OnBeginPrinting();
+
+    if (!m_previewPrintout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
+    {
+        wxMessageBox(_("Could not start document preview."), _("Print Preview Failure"), wxOK);
+        return false;
+    }
+
+    m_previewPrintout->OnPrintPage(pageNum);
+    m_previewPrintout->OnEndDocument();
+    m_previewPrintout->OnEndPrinting();
+
+    m_previewPrintout->SetDC(NULL);
+
+    return true;
+}
+
+bool wxPrintPreviewBase::RenderPageIntoBitmap(wxBitmap& bmp, int pageNum)
+{
+    wxMemoryDC memoryDC;
+    memoryDC.SelectObject(bmp);
+    memoryDC.Clear();
+
+    return RenderPageIntoDC(memoryDC, pageNum);
+}
+

 bool wxPrintPreviewBase::RenderPage(int pageNum)
 {
     wxBusyCursor busy;
 bool wxPrintPreviewBase::RenderPage(int pageNum)
 {
     wxBusyCursor busy;


@@ -1489,53 +1595,19 @@ bool wxPrintPreviewBase::RenderPage(int pageNum)
 
         if (!m_previewBitmap || !m_previewBitmap->Ok())
         {
 
         if (!m_previewBitmap || !m_previewBitmap->Ok())
         {

-            if (m_previewBitmap) {
-                delete m_previewBitmap;
-                m_previewBitmap = NULL;
-            }
+            InvalidatePreviewBitmap();

             wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK);
             return false;
         }
     }
 
             wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK);
             return false;
         }
     }
 

-    wxMemoryDC memoryDC;
-    memoryDC.SelectObject(*m_previewBitmap);
-
-    memoryDC.Clear();
-
-    m_previewPrintout->SetDC(&memoryDC);
-    m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
-
-    // Need to delay OnPreparePrinting until here, so we have enough information.
-    if (!m_printingPrepared)
-    {
-        m_previewPrintout->OnPreparePrinting();
-        int selFrom, selTo;
-        m_previewPrintout->GetPageInfo(&m_minPage, &m_maxPage, &selFrom, &selTo);
-        m_printingPrepared = true;
-    }
-
-    m_previewPrintout->OnBeginPrinting();
-
-    if (!m_previewPrintout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
+    if ( !RenderPageIntoBitmap(*m_previewBitmap, pageNum) )

     {
     {

-        wxMessageBox(_("Could not start document preview."), _("Print Preview Failure"), wxOK);
-
-        memoryDC.SelectObject(wxNullBitmap);
-
-        delete m_previewBitmap;
-        m_previewBitmap = NULL;
+        InvalidatePreviewBitmap();
+        wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK);

         return false;
     }
 
         return false;
     }
 

-    m_previewPrintout->OnPrintPage(pageNum);
-    m_previewPrintout->OnEndDocument();
-    m_previewPrintout->OnEndPrinting();
-
-    m_previewPrintout->SetDC(NULL);
-
-    memoryDC.SelectObject(wxNullBitmap);
-

 #if wxUSE_STATUSBAR
     wxString status;
     if (m_maxPage != 0)
 #if wxUSE_STATUSBAR
     wxString status;
     if (m_maxPage != 0)


@@ -1582,16 +1654,12 @@ void wxPrintPreviewBase::SetZoom(int percent)
         return;
 
     m_currentZoom = percent;
         return;
 
     m_currentZoom = percent;

-    if (m_previewBitmap)
-    {
-        delete m_previewBitmap;
-        m_previewBitmap = NULL;
-    }
+
+    InvalidatePreviewBitmap();

 
     if (m_previewCanvas)
     {
         AdjustScrollbars(m_previewCanvas);
 
     if (m_previewCanvas)
     {
         AdjustScrollbars(m_previewCanvas);

-        RenderPage(m_currentPage);

         ((wxScrolledWindow *) m_previewCanvas)->Scroll(0, 0);
         m_previewCanvas->ClearBackground();
         m_previewCanvas->Refresh();
         ((wxScrolledWindow *) m_previewCanvas)->Scroll(0, 0);
         m_previewCanvas->ClearBackground();
         m_previewCanvas->Refresh();


@@ -1699,6 +1767,11 @@ bool wxPrintPreview::PaintPage(wxPreviewCanvas *canvas, wxDC& dc)
     return m_pimpl->PaintPage( canvas, dc );
 }
 
     return m_pimpl->PaintPage( canvas, dc );
 }
 

+bool wxPrintPreview::UpdatePageRendering()
+{
+    return m_pimpl->UpdatePageRendering();
+}
+

 bool wxPrintPreview::DrawBlankPage(wxPreviewCanvas *canvas, wxDC& dc)
 {
     return m_pimpl->DrawBlankPage( canvas, dc );
 bool wxPrintPreview::DrawBlankPage(wxPreviewCanvas *canvas, wxDC& dc)
 {
     return m_pimpl->DrawBlankPage( canvas, dc );