Forward port 2.8 fix.

[wxWidgets.git] / src / msw / graphics.cpp

diff --git a/src/msw/graphics.cpp b/src/msw/graphics.cpp
index 2208e1e54a74b7b824991fb05e211f3482ea4189..62d56a1023fa78f40ea0d7ad46f7387e08f7fdf2 100644 (file)
--- a/src/msw/graphics.cpp
+++ b/src/msw/graphics.cpp
@@ -11,12 +11,12 @@
 
 #include "wx/wxprec.h"
 
 
 #include "wx/wxprec.h"
 

-#include "wx/dc.h"
-

 #ifdef __BORLANDC__
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

+#include "wx/dc.h"
+

 #if wxUSE_GRAPHICS_CONTEXT
 
 #ifndef WX_PRECOMP
 #if wxUSE_GRAPHICS_CONTEXT
 
 #ifndef WX_PRECOMP


@@ -40,6 +40,7 @@
 #include "wx/private/graphics.h"
 #include "wx/msw/wrapgdip.h"
 #include "wx/msw/dc.h"
 #include "wx/private/graphics.h"
 #include "wx/msw/wrapgdip.h"
 #include "wx/msw/dc.h"

+#include "wx/dcgraph.h"

 
 #include "wx/stack.h"
 
 
 #include "wx/stack.h"
 


@@ -298,7 +299,7 @@ public:
     virtual void StrokePath( const wxGraphicsPath& p );
     virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
 
     virtual void StrokePath( const wxGraphicsPath& p );
     virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
 

-       // stroke lines connecting each of the points
+    // stroke lines connecting each of the points

     virtual void StrokeLines( size_t n, const wxPoint2DDouble *points);
 
     // draws a polygon
     virtual void StrokeLines( size_t n, const wxPoint2DDouble *points);
 
     // draws a polygon


@@ -311,7 +312,7 @@ public:
     virtual void BeginLayer(wxDouble opacity);
 
     virtual void EndLayer();
     virtual void BeginLayer(wxDouble opacity);
 
     virtual void EndLayer();

-    
+

     virtual void Translate( wxDouble dx , wxDouble dy );
     virtual void Scale( wxDouble xScale , wxDouble yScale );
     virtual void Rotate( wxDouble angle );
     virtual void Translate( wxDouble dx , wxDouble dy );
     virtual void Scale( wxDouble xScale , wxDouble yScale );
     virtual void Rotate( wxDouble angle );


@@ -357,7 +358,7 @@ private:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
 };
 
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
 };
 

-class WXDLLIMPEXP_CORE wxGDIPlusMeasuringContext : public wxGDIPlusContext
+class wxGDIPlusMeasuringContext : public wxGDIPlusContext

 {
 public:
     wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 )
 {
 public:
     wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 )


@@ -1121,19 +1122,19 @@ void wxGDIPlusContext::StrokeLines( size_t n, const wxPoint2DDouble *points)
    if (m_composition == wxCOMPOSITION_DEST)
         return;
 
    if (m_composition == wxCOMPOSITION_DEST)
         return;
 

-       if ( !m_pen.IsNull() )
-       {
-        wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
-               Point *cpoints = new Point[n];
-               for (size_t i = 0; i < n; i++)
-               {
-                       cpoints[i].X = (int)(points[i].m_x );
-                       cpoints[i].Y = (int)(points[i].m_y );
-
-               } // for (size_t i = 0; i < n; i++)
-               m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
-               delete[] cpoints;
-       }
+   if ( !m_pen.IsNull() )
+   {
+       wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
+       Point *cpoints = new Point[n];
+       for (size_t i = 0; i < n; i++)
+       {
+           cpoints[i].X = (int)(points[i].m_x );
+           cpoints[i].Y = (int)(points[i].m_y );
+
+       } // for (size_t i = 0; i < n; i++)
+       m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
+       delete[] cpoints;
+   }

 }
 
 void wxGDIPlusContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode WXUNUSED(fillStyle) )
 }
 
 void wxGDIPlusContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode WXUNUSED(fillStyle) )


@@ -1142,18 +1143,18 @@ void wxGDIPlusContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPol
         return;
 
     wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
         return;
 
     wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );

-       Point *cpoints = new Point[n];
-       for (size_t i = 0; i < n; i++)
-       {
-               cpoints[i].X = (int)(points[i].m_x );
-               cpoints[i].Y = (int)(points[i].m_y );
+    Point *cpoints = new Point[n];
+    for (size_t i = 0; i < n; i++)
+    {
+        cpoints[i].X = (int)(points[i].m_x );
+        cpoints[i].Y = (int)(points[i].m_y );

 
 

-       } // for (int i = 0; i < n; i++)
-       if ( !m_brush.IsNull() )
-               m_context->FillPolygon( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , cpoints , n ) ;
-       if ( !m_pen.IsNull() )
-               m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
-       delete[] cpoints;
+    } // for (int i = 0; i < n; i++)
+    if ( !m_brush.IsNull() )
+        m_context->FillPolygon( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , cpoints , n ) ;
+    if ( !m_pen.IsNull() )
+        m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
+    delete[] cpoints;

 }
 
 void wxGDIPlusContext::StrokePath( const wxGraphicsPath& path )
 }
 
 void wxGDIPlusContext::StrokePath( const wxGraphicsPath& path )


@@ -1186,9 +1187,9 @@ bool wxGDIPlusContext::SetAntialiasMode(wxAntialiasMode antialias)
 {
     if (m_antialias == antialias)
         return true;
 {
     if (m_antialias == antialias)
         return true;

-    
+

     m_antialias = antialias;
     m_antialias = antialias;

-    
+

     SmoothingMode antialiasMode;
     switch (antialias)
     {
     SmoothingMode antialiasMode;
     switch (antialias)
     {


@@ -1209,9 +1210,9 @@ bool wxGDIPlusContext::SetCompositionMode(wxCompositionMode op)
 {
     if ( m_composition == op )
         return true;
 {
     if ( m_composition == op )
         return true;

-        
+

     m_composition = op;
     m_composition = op;

-    
+

     if (m_composition == wxCOMPOSITION_DEST)
         return true;
 
     if (m_composition == wxCOMPOSITION_DEST)
         return true;
 


@@ -1240,7 +1241,7 @@ void wxGDIPlusContext::BeginLayer(wxDouble /* opacity */)
 void wxGDIPlusContext::EndLayer()
 {
     // TODO
 void wxGDIPlusContext::EndLayer()
 {
     // TODO

-}    
+}

 
 void wxGDIPlusContext::Rotate( wxDouble angle )
 {
 
 void wxGDIPlusContext::Rotate( wxDouble angle )
 {


@@ -1453,23 +1454,37 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble
     RectF layoutRect(0,0, 100000.0f, 100000.0f);
     StringFormat strFormat( StringFormat::GenericTypographic() );
 
     RectF layoutRect(0,0, 100000.0f, 100000.0f);
     StringFormat strFormat( StringFormat::GenericTypographic() );
 

-    CharacterRange* ranges = new CharacterRange[len] ;
-    Region* regions = new Region[len];
-    for( size_t i = 0 ; i < len ; ++i)
-    {
-        ranges[i].First = i ;
-        ranges[i].Length = 1 ;
-    }
-    strFormat.SetMeasurableCharacterRanges(len,ranges);
-    strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() );
-    m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,1,regions) ;
+    size_t startPosition = 0;
+    size_t remainder = len;
+    const size_t maxSpan = 32;
+    CharacterRange* ranges = new CharacterRange[maxSpan] ;
+    Region* regions = new Region[maxSpan];

 
 

-    RectF bbox ;
-    for ( size_t i = 0 ; i < len ; ++i)
+    while( remainder > 0 )

     {
     {

-        regions[i].GetBounds(&bbox,m_context);
-        widths[i] = bbox.GetRight()-bbox.GetLeft();
+        size_t span = wxMin( maxSpan, remainder );
+
+        for( size_t i = 0 ; i < span ; ++i)
+        {
+            ranges[i].First = 0 ;
+            ranges[i].Length = startPosition+i+1 ;
+        }
+        strFormat.SetMeasurableCharacterRanges(span,ranges);
+        strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() );
+        m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,span,regions) ;
+
+        RectF bbox ;
+        for ( size_t i = 0 ; i < span ; ++i)
+        {
+            regions[i].GetBounds(&bbox,m_context);
+            widths[startPosition+i] = bbox.Width;
+        }
+        remainder -= span;
+        startPosition += span;

     }
     }

+
+    delete[] ranges;
+    delete[] regions;

 }
 
 bool wxGDIPlusContext::ShouldOffset() const
 }
 
 bool wxGDIPlusContext::ShouldOffset() const


@@ -1580,6 +1595,9 @@ public :
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap );
 
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap );
 

+    // create a graphics bitmap from a native bitmap
+    virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
+    

     // create a subimage from a native image representation
     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  );
 
     // create a subimage from a native image representation
     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  );
 


@@ -1807,6 +1825,19 @@ wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap )
         return wxNullGraphicsBitmap;
 }
 
         return wxNullGraphicsBitmap;
 }
 

+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap )
+{
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+    if ( bitmap != NULL )
+    {
+        wxGraphicsBitmap p;
+        p.SetRefData(new wxGDIPlusBitmapData( this , (Bitmap*) bitmap ));
+        return p;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+

 wxGraphicsBitmap wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
 {
     ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
 wxGraphicsBitmap wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
 {
     ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);


@@ -1834,4 +1865,32 @@ private:
 
 IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRendererModule, wxModule)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRendererModule, wxModule)
 

+// ----------------------------------------------------------------------------
+// wxMSW-specific parts of wxGCDC
+// ----------------------------------------------------------------------------
+
+WXHDC wxGCDC::AcquireHDC()
+{
+    wxGraphicsContext * const gc = GetGraphicsContext();
+    if ( !gc )
+        return NULL;
+
+    Graphics * const g = static_cast<Graphics *>(gc->GetNativeContext());
+    return g ? g->GetHDC() : NULL;
+}
+
+void wxGCDC::ReleaseHDC(WXHDC hdc)
+{
+    if ( !hdc )
+        return;
+
+    wxGraphicsContext * const gc = GetGraphicsContext();
+    wxCHECK_RET( gc, "can't release HDC because there is no wxGraphicsContext" );
+
+    Graphics * const g = static_cast<Graphics *>(gc->GetNativeContext());
+    wxCHECK_RET( g, "can't release HDC because there is no Graphics" );
+
+    g->ReleaseHDC((HDC)hdc);
+}
+

 #endif  // wxUSE_GRAPHICS_CONTEXT
 #endif  // wxUSE_GRAPHICS_CONTEXT