fixing osx_cocoa

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

diff --git a/src/common/dcgraph.cpp b/src/common/dcgraph.cpp
index df722ea5d90575058171ccf221bd851addc7afc4..a06cd25382a4ec19db041675f1a142b9e1fb23bf 100644 (file)
--- a/src/common/dcgraph.cpp
+++ b/src/common/dcgraph.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        src/common/graphcmn.cpp
+// Name:        src/common/dcgraph.cpp

 // Purpose:     graphics context methods common to all platforms
 // Author:      Stefan Csomor
 // Modified by:
 // Purpose:     graphics context methods common to all platforms
 // Author:      Stefan Csomor
 // Modified by:


@@ -53,26 +53,27 @@ static inline double DegToRad(double deg)
     return (deg * M_PI) / 180.0;
 }
 
     return (deg * M_PI) / 180.0;
 }
 

-static bool TranslateRasterOp(wxRasterOperationMode function, wxCompositionMode *op)
+static wxCompositionMode TranslateRasterOp(wxRasterOperationMode function)

 {
     switch ( function )
     {
 {
     switch ( function )
     {

-        case wxCOPY:       // (default) src
-            *op = wxCOMPOSITION_SOURCE; //
-            break;
+        case wxCOPY: // src
+            // since we are supporting alpha, _OVER is closer to the intention than _SOURCE
+            // since the latter would overwrite even when alpha is not set to opaque
+            return wxCOMPOSITION_OVER;
+

         case wxOR:         // src OR dst
         case wxOR:         // src OR dst

-            *op = wxCOMPOSITION_ADD;
-            break;
+            return wxCOMPOSITION_ADD;
+

         case wxNO_OP:      // dst
         case wxNO_OP:      // dst

-            *op = wxCOMPOSITION_DEST; // ignore the source
-            break;
+            return wxCOMPOSITION_DEST; // ignore the source
+

         case wxCLEAR:      // 0
         case wxCLEAR:      // 0

-            *op = wxCOMPOSITION_CLEAR;// clear dst
-            break;
+            return wxCOMPOSITION_CLEAR;// clear dst
+

         case wxXOR:        // src XOR dst
         case wxXOR:        // src XOR dst

-            *op = wxCOMPOSITION_XOR;
-            break;
-            
+            return wxCOMPOSITION_XOR;
+

         case wxAND:        // src AND dst
         case wxAND_INVERT: // (NOT src) AND dst
         case wxAND_REVERSE:// src AND (NOT dst)
         case wxAND:        // src AND dst
         case wxAND_INVERT: // (NOT src) AND dst
         case wxAND_REVERSE:// src AND (NOT dst)


@@ -84,10 +85,10 @@ static bool TranslateRasterOp(wxRasterOperationMode function, wxCompositionMode
         case wxOR_REVERSE: // src OR (NOT dst)
         case wxSET:        // 1
         case wxSRC_INVERT: // NOT src
         case wxOR_REVERSE: // src OR (NOT dst)
         case wxSET:        // 1
         case wxSRC_INVERT: // NOT src

-        default:
-            return false;
+            break;

     }
     }

-    return true;
+
+    return wxCOMPOSITION_INVALID;

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -113,6 +114,13 @@ wxGCDC::wxGCDC( const wxPrinterDC& dc) :
 }
 #endif
 
 }
 #endif
 

+#if defined(__WXMSW__) && wxUSE_ENH_METAFILE
+wxGCDC::wxGCDC(const wxEnhMetaFileDC& dc)
+   : wxDC(new wxGCDCImpl(this, dc))
+{
+}
+#endif
+

 wxGCDC::wxGCDC() :
   wxDC( new wxGCDCImpl( this ) )
 {
 wxGCDC::wxGCDC() :
   wxDC( new wxGCDCImpl( this ) )
 {


@@ -122,7 +130,7 @@ wxGCDC::~wxGCDC()
 {
 }
 
 {
 }
 

-wxGraphicsContext* wxGCDC::GetGraphicsContext()
+wxGraphicsContext* wxGCDC::GetGraphicsContext() const

 {
     if (!m_pimpl) return NULL;
     wxGCDCImpl *gc_impl = (wxGCDCImpl*) m_pimpl;
 {
     if (!m_pimpl) return NULL;
     wxGCDCImpl *gc_impl = (wxGCDCImpl*) m_pimpl;


@@ -172,7 +180,15 @@ wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxMemoryDC& dc ) :
    wxDCImpl( owner )
 {
     Init();
    wxDCImpl( owner )
 {
     Init();

-    SetGraphicsContext( wxGraphicsContext::Create(dc) );
+    wxGraphicsContext* context;
+#if wxUSE_CAIRO
+    wxGraphicsRenderer* renderer = wxGraphicsRenderer::GetCairoRenderer();
+    context = renderer->CreateContext(dc);
+#else
+    context = wxGraphicsContext::Create(dc);
+#endif
+
+    SetGraphicsContext( context );

 }
 
 #if wxUSE_PRINTING_ARCHITECTURE
 }
 
 #if wxUSE_PRINTING_ARCHITECTURE


@@ -184,6 +200,15 @@ wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxPrinterDC& dc ) :
 }
 #endif
 
 }
 #endif
 

+#if defined(__WXMSW__) && wxUSE_ENH_METAFILE
+wxGCDCImpl::wxGCDCImpl(wxDC *owner, const wxEnhMetaFileDC& dc)
+   : wxDCImpl(owner)
+{
+    Init();
+    SetGraphicsContext(wxGraphicsContext::Create(dc));
+}
+#endif
+

 void wxGCDCImpl::Init()
 {
     m_ok = false;
 void wxGCDCImpl::Init()
 {
     m_ok = false;


@@ -195,7 +220,7 @@ void wxGCDCImpl::Init()
     m_font = *wxNORMAL_FONT;
     m_brush = *wxWHITE_BRUSH;
 
     m_font = *wxNORMAL_FONT;
     m_brush = *wxWHITE_BRUSH;
 

-    m_graphicContext = NULL;
+    m_graphicContext = wxGraphicsContext::Create();

     m_logicalFunctionSupported = true;
 }
 
     m_logicalFunctionSupported = true;
 }
 


@@ -265,9 +290,7 @@ void wxGCDCImpl::EndPage()
 
 void wxGCDCImpl::Flush()
 {
 
 void wxGCDCImpl::Flush()
 {

-#ifdef __WXOSX_OR_COCOA__
-    CGContextFlush( (CGContextRef) m_graphicContext->GetNativeContext() );
-#endif
+    m_graphicContext->Flush();

 }
 
 void wxGCDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 }
 
 void wxGCDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )


@@ -333,7 +356,7 @@ void wxGCDCImpl::DestroyClippingRegion()
 {
     m_graphicContext->ResetClip();
     // currently the clip eg of a window extends to the area between the scrollbars
 {
     m_graphicContext->ResetClip();
     // currently the clip eg of a window extends to the area between the scrollbars

-    // so we must explicitely make sure it only covers the area we want it to draw
+    // so we must explicitly make sure it only covers the area we want it to draw

     int width, height ;
     GetOwner()->GetSize( &width , &height ) ;
     m_graphicContext->Clip( DeviceToLogicalX(0) , DeviceToLogicalY(0) , DeviceToLogicalXRel(width), DeviceToLogicalYRel(height) );
     int width, height ;
     GetOwner()->GetSize( &width , &height ) ;
     m_graphicContext->Clip( DeviceToLogicalX(0) , DeviceToLogicalY(0) , DeviceToLogicalXRel(width), DeviceToLogicalYRel(height) );


@@ -450,12 +473,6 @@ void wxGCDCImpl::SetFont( const wxFont &font )
         if ( f.IsOk() )
             f.SetPointSize( /*LogicalToDeviceYRel*/(font.GetPointSize()));
         m_graphicContext->SetFont( f, m_textForegroundColour );
         if ( f.IsOk() )
             f.SetPointSize( /*LogicalToDeviceYRel*/(font.GetPointSize()));
         m_graphicContext->SetFont( f, m_textForegroundColour );

-#if defined(__WXGTK__) || defined(__WXOSX__)
-        if ( m_font.IsOk() && m_font.GetNoAntiAliasing() ) 
-        {
-            m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE);
-        }
-#endif

     }
 }
 
     }
 }
 


@@ -499,20 +516,20 @@ void wxGCDCImpl::SetLogicalFunction( wxRasterOperationMode function )
         return;
 
     m_logicalFunction = function;
         return;
 
     m_logicalFunction = function;

-    
-    wxCompositionMode mode;
-    m_logicalFunctionSupported = TranslateRasterOp( function, &mode);
+
+    wxCompositionMode mode = TranslateRasterOp( function );
+    m_logicalFunctionSupported = mode != wxCOMPOSITION_INVALID;

     if (m_logicalFunctionSupported)
         m_logicalFunctionSupported = m_graphicContext->SetCompositionMode(mode);
     if (m_logicalFunctionSupported)
         m_logicalFunctionSupported = m_graphicContext->SetCompositionMode(mode);

-        
-    if (mode == wxCOMPOSITION_XOR)
+
+    if ( function == wxXOR )

         m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE);
     else
         m_graphicContext->SetAntialiasMode(wxANTIALIAS_DEFAULT);
 }
 
 bool wxGCDCImpl::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
         m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE);
     else
         m_graphicContext->SetAntialiasMode(wxANTIALIAS_DEFAULT);
 }
 
 bool wxGCDCImpl::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),

-                             const wxColour& WXUNUSED(col), 
+                             const wxColour& WXUNUSED(col),

                              wxFloodFillStyle WXUNUSED(style))
 {
     return false;
                              wxFloodFillStyle WXUNUSED(style))
 {
     return false;


@@ -675,7 +692,7 @@ void wxGCDCImpl::DoDrawSpline(const wxPointList *points)
     wxGraphicsPath path = m_graphicContext->CreatePath();
 
     wxPointList::compatibility_iterator node = points->GetFirst();
     wxGraphicsPath path = m_graphicContext->CreatePath();
 
     wxPointList::compatibility_iterator node = points->GetFirst();

-    if (node == wxPointList::compatibility_iterator())
+    if ( !node )

         // empty list
         return;
 
         // empty list
         return;
 


@@ -694,13 +711,13 @@ void wxGCDCImpl::DoDrawSpline(const wxPointList *points)
 
     path.MoveToPoint( x1 , y1 );
     path.AddLineToPoint( cx1 , cy1 );
 
     path.MoveToPoint( x1 , y1 );
     path.AddLineToPoint( cx1 , cy1 );

-#if !wxUSE_STL
+#if !wxUSE_STD_CONTAINERS

 
     while ((node = node->GetNext()) != NULL)
 #else
 
     while ((node = node->GetNext()))
 
     while ((node = node->GetNext()) != NULL)
 #else
 
     while ((node = node->GetNext()))

-#endif // !wxUSE_STL
+#endif // !wxUSE_STD_CONTAINERS

 
     {
         p = node->GetData();
 
     {
         p = node->GetData();


@@ -851,7 +868,7 @@ bool wxGCDCImpl::CanDrawBitmap() const
 
 bool wxGCDCImpl::DoBlit(
     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 
 bool wxGCDCImpl::DoBlit(
     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,

-    wxDC *source, wxCoord xsrc, wxCoord ysrc, 
+    wxDC *source, wxCoord xsrc, wxCoord ysrc,

     wxRasterOperationMode logical_func , bool useMask,
     wxCoord xsrcMask, wxCoord ysrcMask )
 {
     wxRasterOperationMode logical_func , bool useMask,
     wxCoord xsrcMask, wxCoord ysrcMask )
 {


@@ -871,16 +888,16 @@ bool wxGCDCImpl::DoStretchBlit(
 
     if ( logical_func == wxNO_OP )
         return true;
 
     if ( logical_func == wxNO_OP )
         return true;

-        
-    wxCompositionMode mode;
-    if ( !TranslateRasterOp(logical_func, &mode) )
+
+    wxCompositionMode mode = TranslateRasterOp(logical_func);
+    if ( mode == wxCOMPOSITION_INVALID )

     {
         wxFAIL_MSG( wxT("Blitting is not supported with this logical operation.") );
         return false;
     }
 
     bool retval = true;
     {
         wxFAIL_MSG( wxT("Blitting is not supported with this logical operation.") );
         return false;
     }
 
     bool retval = true;

-    
+

     wxCompositionMode formerMode = m_graphicContext->GetCompositionMode();
     if (m_graphicContext->SetCompositionMode(mode))
     {
     wxCompositionMode formerMode = m_graphicContext->GetCompositionMode();
     if (m_graphicContext->SetCompositionMode(mode))
     {


@@ -889,7 +906,7 @@ bool wxGCDCImpl::DoStretchBlit(
         {
             m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE);
         }
         {
             m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE);
         }

-            
+

         if (xsrcMask == -1 && ysrcMask == -1)
         {
             xsrcMask = xsrc;
         if (xsrcMask == -1 && ysrcMask == -1)
         {
             xsrcMask = xsrc;


@@ -926,7 +943,7 @@ bool wxGCDCImpl::DoStretchBlit(
             wxFAIL_MSG( wxT("Cannot Blit. Unable to get contents of DC as bitmap.") );
             retval = false;
         }
             wxFAIL_MSG( wxT("Cannot Blit. Unable to get contents of DC as bitmap.") );
             retval = false;
         }

-        
+

         if (mode == wxCOMPOSITION_XOR)
         {
             m_graphicContext->SetAntialiasMode(formerAa);
         if (mode == wxCOMPOSITION_XOR)
         {
             m_graphicContext->SetAntialiasMode(formerAa);


@@ -943,7 +960,7 @@ void wxGCDCImpl::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
 {
     wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") );
 
 {
     wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") );
 

-    if ( str.length() == 0 )
+    if ( str.empty() )

         return;
     if ( !m_logicalFunctionSupported )
         return;
         return;
     if ( !m_logicalFunctionSupported )
         return;


@@ -956,9 +973,21 @@ void wxGCDCImpl::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
 
 void wxGCDCImpl::DoDrawText(const wxString& str, wxCoord x, wxCoord y)
 {
 
 void wxGCDCImpl::DoDrawText(const wxString& str, wxCoord x, wxCoord y)
 {

+    // For compatibility with other ports (notably wxGTK) and because it's
+    // genuinely useful, we allow passing multiline strings to DrawText().
+    // However there is no native OSX function to draw them directly so we
+    // instead reuse the generic DrawLabel() method to render them. Of course,
+    // DrawLabel() itself will call back to us but with single line strings
+    // only so there won't be any infinite recursion here.
+    if ( str.find('\n') != wxString::npos )
+    {
+        GetOwner()->DrawLabel(str, wxRect(x, y, 0, 0));
+        return;
+    }
+

     wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawText - invalid DC") );
 
     wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawText - invalid DC") );
 

-    if ( str.length() == 0 )
+    if ( str.empty() )

         return;
 
     if ( !m_logicalFunctionSupported )
         return;
 
     if ( !m_logicalFunctionSupported )


@@ -981,7 +1010,7 @@ void wxGCDCImpl::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *
                               wxCoord *descent, wxCoord *externalLeading ,
                               const wxFont *theFont ) const
 {
                               wxCoord *descent, wxCoord *externalLeading ,
                               const wxFont *theFont ) const
 {

-    wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") );
+    wxCHECK_RET( m_graphicContext, wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") );

 
     if ( theFont )
     {
 
     if ( theFont )
     {


@@ -1009,7 +1038,7 @@ void wxGCDCImpl::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *
 
 bool wxGCDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
 {
 
 bool wxGCDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
 {

-    wxCHECK_MSG( IsOk(), false, wxT("wxGCDC(cg)::DoGetPartialTextExtents - invalid DC") );
+    wxCHECK_MSG( m_graphicContext, false, wxT("wxGCDC(cg)::DoGetPartialTextExtents - invalid DC") );

     widths.Clear();
     widths.Add(0,text.Length());
     if ( text.IsEmpty() )
     widths.Clear();
     widths.Add(0,text.Length());
     if ( text.IsEmpty() )


@@ -1047,7 +1076,10 @@ void wxGCDCImpl::Clear(void)
     m_graphicContext->SetBrush( m_backgroundBrush );
     wxPen p = *wxTRANSPARENT_PEN;
     m_graphicContext->SetPen( p );
     m_graphicContext->SetBrush( m_backgroundBrush );
     wxPen p = *wxTRANSPARENT_PEN;
     m_graphicContext->SetPen( p );

+    wxCompositionMode formerMode = m_graphicContext->GetCompositionMode();
+    m_graphicContext->SetCompositionMode(wxCOMPOSITION_SOURCE);

     DoDrawRectangle( 0, 0, 32000 , 32000 );
     DoDrawRectangle( 0, 0, 32000 , 32000 );

+    m_graphicContext->SetCompositionMode(formerMode);

     m_graphicContext->SetPen( m_pen );
     m_graphicContext->SetBrush( m_brush );
 }
     m_graphicContext->SetPen( m_pen );
     m_graphicContext->SetBrush( m_brush );
 }


@@ -1140,4 +1172,21 @@ void wxGCDCImpl::DoDrawCheckMark(wxCoord x, wxCoord y,
     wxDCImpl::DoDrawCheckMark(x,y,width,height);
 }
 
     wxDCImpl::DoDrawCheckMark(x,y,width,height);
 }
 

+#ifdef __WXMSW__
+wxRect wxGCDCImpl::MSWApplyGDIPlusTransform(const wxRect& r) const
+{
+    wxGraphicsContext* const gc = GetGraphicsContext();
+    wxCHECK_MSG( gc, r, wxT("Invalid wxGCDC") );
+
+    double x = 0,
+           y = 0;
+    gc->GetTransform().TransformPoint(&x, &y);
+
+    wxRect rect(r);
+    rect.Offset(x, y);
+
+    return rect;
+}
+#endif // __WXMSW__
+

 #endif // wxUSE_GRAPHICS_CONTEXT
 #endif // wxUSE_GRAPHICS_CONTEXT