use common bottleneck

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

diff --git a/src/common/dcgraph.cpp b/src/common/dcgraph.cpp
index 3b49dce031cac84073b59f4d6c920eba148ad99b..e80d2375b3a479d6532183a52f10709cc0f22b84 100644 (file)
--- a/src/common/dcgraph.cpp
+++ b/src/common/dcgraph.cpp
@@ -18,28 +18,14 @@
 
 #if wxUSE_GRAPHICS_CONTEXT
 
-#include "wx/graphics.h"
 #include "wx/dcgraph.h"
 
 #ifndef WX_PRECOMP
     #include "wx/icon.h"
-    #include "wx/bitmap.h"
+    #include "wx/dcclient.h"
     #include "wx/dcmemory.h"
-    #include "wx/region.h"
 #endif
 
-#include "wx/dcclient.h"
-
-#ifdef __WXOSX_OR_COCOA__
-#ifdef __WXOSX_IPHONE__
-    #include <CoreGraphics/CoreGraphics.h>
-#else
-    #include <ApplicationServices/ApplicationServices.h>
-#endif
-#endif
-
-#include <limits.h>     // for INT_MAX
-
 //-----------------------------------------------------------------------------
 // constants
 //-----------------------------------------------------------------------------
@@ -303,22 +289,8 @@ void wxGCDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h
     wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoSetClippingRegion - invalid DC") );
 
     m_graphicContext->Clip( x, y, w, h );
-    if ( m_clipping )
-    {
-        m_clipX1 = wxMax( m_clipX1, x );
-        m_clipY1 = wxMax( m_clipY1, y );
-        m_clipX2 = wxMin( m_clipX2, (x + w) );
-        m_clipY2 = wxMin( m_clipY2, (y + h) );
-    }
-    else
-    {
-        m_clipping = true;
 
-        m_clipX1 = x;
-        m_clipY1 = y;
-        m_clipX2 = x + w;
-        m_clipY2 = y + h;
-    }
+    wxDCImpl::DoSetClippingRegion(x, y, w, h);
 }
 
 void wxGCDCImpl::DoSetDeviceClippingRegion( const wxRegion &region )
@@ -433,6 +405,16 @@ void wxGCDCImpl::ComputeScaleAndOrigin()
     }
 }
 
+void* wxGCDCImpl::GetHandle() const
+{
+    void* cgctx = NULL;
+    wxGraphicsContext* gc = GetGraphicsContext();
+    if (gc) {
+        cgctx = gc->GetNativeContext();
+    }
+    return cgctx;
+}
+
 void wxGCDCImpl::SetPalette( const wxPalette& WXUNUSED(palette) )
 {
 
@@ -626,7 +608,7 @@ void wxGCDCImpl::DoDrawPoint( wxCoord x, wxCoord y )
     DoDrawLine( x , y , x + 1 , y + 1 );
 }
 
-void wxGCDCImpl::DoDrawLines(int n, wxPoint points[],
+void wxGCDCImpl::DoDrawLines(int n, const wxPoint points[],
                          wxCoord xoffset, wxCoord yoffset)
 {
     wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawLines - invalid DC") );
@@ -660,7 +642,7 @@ void wxGCDCImpl::DoDrawSpline(const wxPointList *points)
         // empty list
         return;
 
-    wxPoint *p = node->GetData();
+    const wxPoint *p = node->GetData();
 
     wxCoord x1 = p->x;
     wxCoord y1 = p->y;
@@ -704,7 +686,7 @@ void wxGCDCImpl::DoDrawSpline(const wxPointList *points)
 }
 #endif // wxUSE_SPLINES
 
-void wxGCDCImpl::DoDrawPolygon( int n, wxPoint points[],
+void wxGCDCImpl::DoDrawPolygon( int n, const wxPoint points[],
                                 wxCoord xoffset, wxCoord yoffset,
                                 wxPolygonFillMode fillStyle )
 {
@@ -733,8 +715,8 @@ void wxGCDCImpl::DoDrawPolygon( int n, wxPoint points[],
 }
 
 void wxGCDCImpl::DoDrawPolyPolygon(int n,
-                               int count[],
-                               wxPoint points[],
+                               const int count[],
+                               const wxPoint points[],
                                wxCoord xoffset,
                                wxCoord yoffset,
                                wxPolygonFillMode fillStyle)
@@ -1050,7 +1032,10 @@ void wxGCDCImpl::Clear(void)
     m_graphicContext->SetPen( p );
     wxCompositionMode formerMode = m_graphicContext->GetCompositionMode();
     m_graphicContext->SetCompositionMode(wxCOMPOSITION_SOURCE);
-    DoDrawRectangle( 0, 0, INT_MAX , INT_MAX );
+    // maximum positive coordinate Cairo can handle is 2^23 - 1
+    DoDrawRectangle(
+        DeviceToLogicalX(0), DeviceToLogicalY(0),
+        DeviceToLogicalXRel(0x007fffff), DeviceToLogicalYRel(0x007fffff));
     m_graphicContext->SetCompositionMode(formerMode);
     m_graphicContext->SetPen( m_pen );
     m_graphicContext->SetBrush( m_brush );