// Purpose: graphics context methods common to all platforms
// Author: Stefan Csomor
// Modified by:
-// Created:
+// Created:
// RCS-ID: $Id$
// Copyright: (c) Stefan Csomor
// Licence: wxWindows licence
#include "wx/log.h"
#endif
-#if !defined(wxMAC_USE_CORE_GRAPHICS_BLEND_MODES)
-#define wxMAC_USE_CORE_GRAPHICS_BLEND_MODES 0
-#endif
-
-//-----------------------------------------------------------------------------
-// constants
-//-----------------------------------------------------------------------------
-
-static const double RAD2DEG = 180.0 / M_PI;
+#include "wx/private/graphics.h"
//-----------------------------------------------------------------------------
// Local functions
{
m_renderer = data->m_renderer;
}
-wxGraphicsRenderer* wxGraphicsObjectRefData::GetRenderer() const
-{
- return m_renderer ;
+wxGraphicsRenderer* wxGraphicsObjectRefData::GetRenderer() const
+{
+ return m_renderer ;
}
-wxGraphicsObjectRefData* wxGraphicsObjectRefData::Clone() const
+wxGraphicsObjectRefData* wxGraphicsObjectRefData::Clone() const
{
return new wxGraphicsObjectRefData(this);
}
-wxGraphicsObject::wxGraphicsObject()
+wxGraphicsObject::wxGraphicsObject()
{
}
-wxGraphicsObject::wxGraphicsObject( wxGraphicsRenderer* renderer )
+wxGraphicsObject::wxGraphicsObject( wxGraphicsRenderer* renderer )
{
SetRefData( new wxGraphicsObjectRefData(renderer));
}
-wxGraphicsObject::~wxGraphicsObject()
+wxGraphicsObject::~wxGraphicsObject()
{
}
-bool wxGraphicsObject::IsNull() const
-{
- return m_refData == NULL;
+bool wxGraphicsObject::IsNull() const
+{
+ return m_refData == NULL;
}
-wxGraphicsRenderer* wxGraphicsObject::GetRenderer() const
-{
- return ( IsNull() ? NULL : GetGraphicsData()->GetRenderer() );
+wxGraphicsRenderer* wxGraphicsObject::GetRenderer() const
+{
+ return ( IsNull() ? NULL : GetGraphicsData()->GetRenderer() );
}
-wxGraphicsObjectRefData* wxGraphicsObject::GetGraphicsData() const
-{
- return (wxGraphicsObjectRefData*) m_refData;
+wxGraphicsObjectRefData* wxGraphicsObject::GetGraphicsData() const
+{
+ return (wxGraphicsObjectRefData*) m_refData;
}
wxObjectRefData* wxGraphicsObject::CreateRefData() const
IMPLEMENT_DYNAMIC_CLASS(wxGraphicsPen, wxGraphicsObject)
IMPLEMENT_DYNAMIC_CLASS(wxGraphicsBrush, wxGraphicsObject)
IMPLEMENT_DYNAMIC_CLASS(wxGraphicsFont, wxGraphicsObject)
+IMPLEMENT_DYNAMIC_CLASS(wxGraphicsBitmap, wxGraphicsObject)
WXDLLIMPEXP_DATA_CORE(wxGraphicsPen) wxNullGraphicsPen;
WXDLLIMPEXP_DATA_CORE(wxGraphicsBrush) wxNullGraphicsBrush;
WXDLLIMPEXP_DATA_CORE(wxGraphicsFont) wxNullGraphicsFont;
+WXDLLIMPEXP_DATA_CORE(wxGraphicsBitmap) wxNullGraphicsBitmap;
//-----------------------------------------------------------------------------
// matrix
}
// sets the matrix to the respective values
-void wxGraphicsMatrix::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+void wxGraphicsMatrix::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
wxDouble tx, wxDouble ty)
{
AllocExclusive();
{
AllocExclusive();
GetMatrixData()->Rotate(angle);
-}
+}
//
// apply the transforms
wxRect2DDouble wxGraphicsPath::GetBox() const
{
- wxDouble x,y,w,h;
- GetBox(&x,&y,&w,&h);
- return wxRect2DDouble( x,y,w,h );
+ wxDouble x,y,w,h;
+ GetBox(&x,&y,&w,&h);
+ return wxRect2DDouble( x,y,w,h );
}
-bool wxGraphicsPath::Contains( const wxPoint2DDouble& c, int fillStyle ) const
+bool wxGraphicsPath::Contains( const wxPoint2DDouble& c, wxPolygonFillMode fillStyle ) const
{
return Contains( c.m_x, c.m_y, fillStyle);
}
GetPathData()->MoveToPoint(x,y);
}
-// adds a straight line from the current point to (x,y)
+// adds a straight line from the current point to (x,y)
void wxGraphicsPath::AddLineToPoint( wxDouble x, wxDouble y )
{
AllocExclusive();
}
//
-// These are convenience functions which - if not available natively will be assembled
+// These are convenience functions which - if not available natively will be assembled
// using the primitives from above
//
GetPathData()->AddQuadCurveToPoint(cx,cy,x,y);
}
-// appends a rectangle as a new closed subpath
+// appends a rectangle as a new closed subpath
void wxGraphicsPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
AllocExclusive();
}
// appends a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
-void wxGraphicsPath::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
+void wxGraphicsPath::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
{
GetPathData()->AddArcToPoint(x1,y1,x2,y2,r);
}
GetPathData()->GetBox(x,y,w,h);
}
-bool wxGraphicsPath::Contains( wxDouble x, wxDouble y, int fillStyle ) const
+bool wxGraphicsPath::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const
{
return GetPathData()->Contains(x,y,fillStyle);
}
void wxGraphicsPathData::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h)
{
+ if (w <= 0. || h <= 0.)
+ return;
+
wxDouble rw = w/2;
wxDouble rh = h/2;
wxDouble xc = x + rw;
// draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
void wxGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
-{
+{
wxPoint2DDouble current;
GetCurrentPoint(¤t.m_x,¤t.m_y);
wxPoint2DDouble p1(x1,y1);
wxDouble dist = r / sin(alpha/2) * cos(alpha/2);
// calculate tangential points
wxPoint2DDouble t1 = dist*v1 + p1;
- wxPoint2DDouble t2 = dist*v2 + p1;
wxPoint2DDouble nv1 = v1;
nv1.SetVectorAngle(v1.GetVectorAngle()-90);
AddLineToPoint(p2.m_x,p2.m_y);
}
+//-----------------------------------------------------------------------------
+// wxGraphicsGradientStops
+//-----------------------------------------------------------------------------
+
+void wxGraphicsGradientStops::Add(const wxGraphicsGradientStop& stop)
+{
+ for ( wxVector<wxGraphicsGradientStop>::iterator it = m_stops.begin();
+ it != m_stops.end();
+ ++it )
+ {
+ if ( stop.GetPosition() < it->GetPosition() )
+ {
+ if ( it != m_stops.begin() )
+ {
+ m_stops.insert(it, stop);
+ }
+ else // we shouldn't be inserting it at the beginning
+ {
+ wxFAIL_MSG( "invalid gradient stop position < 0" );
+ }
+
+ return;
+ }
+ }
+
+ if ( stop.GetPosition() == 1. )
+ {
+ m_stops.insert(m_stops.end() - 1, stop);
+ }
+ else
+ {
+ wxFAIL_MSG( "invalid gradient stop position > 1" );
+ }
+}
+
//-----------------------------------------------------------------------------
// wxGraphicsContext Convenience Methods
//-----------------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxGraphicsContext, wxObject)
-wxGraphicsContext::wxGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsObject(renderer)
+wxGraphicsContext::wxGraphicsContext(wxGraphicsRenderer* renderer) :
+ wxGraphicsObject(renderer),
+ m_antialias(wxANTIALIAS_DEFAULT),
+ m_composition(wxCOMPOSITION_OVER),
+ m_enableOffset(false)
+{
+}
+
+wxGraphicsContext::~wxGraphicsContext()
+{
+}
+
+bool wxGraphicsContext::StartDoc(const wxString& WXUNUSED(message))
+{
+ return true;
+}
+
+void wxGraphicsContext::EndDoc()
+{
+}
+
+void wxGraphicsContext::StartPage(wxDouble WXUNUSED(width),
+ wxDouble WXUNUSED(height))
+{
+}
+
+void wxGraphicsContext::EndPage()
{
- m_logicalFunction = wxCOPY;
}
-wxGraphicsContext::~wxGraphicsContext()
+void wxGraphicsContext::Flush()
{
}
+void wxGraphicsContext::EnableOffset(bool enable)
+{
+ m_enableOffset = enable;
+}
+
+#if 0
+void wxGraphicsContext::SetAlpha( wxDouble WXUNUSED(alpha) )
+{
+}
+
+wxDouble wxGraphicsContext::GetAlpha() const
+{
+ return 1.0;
+}
+#endif
+
+void wxGraphicsContext::GetDPI( wxDouble* dpiX, wxDouble* dpiY)
+{
+ *dpiX = 72.0;
+ *dpiY = 72.0;
+}
+
// sets the pen
-void wxGraphicsContext::SetPen( const wxGraphicsPen& pen )
+void wxGraphicsContext::SetPen( const wxGraphicsPen& pen )
{
m_pen = pen;
}
void wxGraphicsContext::SetPen( const wxPen& pen )
{
- if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
+ if ( !pen.IsOk() || pen.GetStyle() == wxPENSTYLE_TRANSPARENT )
SetPen( wxNullGraphicsPen );
else
SetPen( CreatePen( pen ) );
}
-
+
// sets the brush for filling
-void wxGraphicsContext::SetBrush( const wxGraphicsBrush& brush )
+void wxGraphicsContext::SetBrush( const wxGraphicsBrush& brush )
{
m_brush = brush;
}
void wxGraphicsContext::SetBrush( const wxBrush& brush )
{
- if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
+ if ( !brush.IsOk() || brush.GetStyle() == wxBRUSHSTYLE_TRANSPARENT )
SetBrush( wxNullGraphicsBrush );
else
SetBrush( CreateBrush( brush ) );
}
// sets the brush for filling
-void wxGraphicsContext::SetFont( const wxGraphicsFont& font )
+void wxGraphicsContext::SetFont( const wxGraphicsFont& font )
{
m_font = font;
}
-bool wxGraphicsContext::SetLogicalFunction( int function )
-{
- if ( function == wxCOPY )
- {
- m_logicalFunction = function;
- return true;
- }
- return false;
-}
-
void wxGraphicsContext::SetFont( const wxFont& font, const wxColour& colour )
{
- if ( font.Ok() )
+ if ( font.IsOk() )
SetFont( CreateFont( font, colour ) );
else
SetFont( wxNullGraphicsFont );
}
-void wxGraphicsContext::DrawPath( const wxGraphicsPath& path, int fillStyle )
+void wxGraphicsContext::DrawPath( const wxGraphicsPath& path, wxPolygonFillMode fillStyle )
{
FillPath( path , fillStyle );
StrokePath( path );
}
-void wxGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
+void
+wxGraphicsContext::DoDrawRotatedText(const wxString &str,
+ wxDouble x,
+ wxDouble y,
+ wxDouble angle)
{
Translate(x,y);
Rotate( -angle );
Translate(-x,-y);
}
-void wxGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, const wxGraphicsBrush& backgroundBrush )
+void
+wxGraphicsContext::DoDrawFilledText(const wxString &str,
+ wxDouble x,
+ wxDouble y,
+ const wxGraphicsBrush& backgroundBrush)
{
wxGraphicsBrush formerBrush = m_brush;
+ wxGraphicsPen formerPen = m_pen;
wxDouble width;
wxDouble height;
wxDouble descent;
wxDouble externalLeading;
GetTextExtent( str , &width, &height, &descent, &externalLeading );
SetBrush( backgroundBrush );
+ // to make sure our 'OffsetToPixelBoundaries' doesn't move the fill shape
+ SetPen( wxNullGraphicsPen );
- wxGraphicsPath path = CreatePath();
- path.AddRectangle( x , y, width, height );
- FillPath( path );
+ DrawRectangle(x , y, width, height);
DrawText( str, x ,y);
SetBrush( formerBrush );
+ SetPen( formerPen );
}
-void wxGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle, const wxGraphicsBrush& backgroundBrush )
+void
+wxGraphicsContext::DoDrawRotatedFilledText(const wxString &str,
+ wxDouble x, wxDouble y,
+ wxDouble angle,
+ const wxGraphicsBrush& backgroundBrush)
{
wxGraphicsBrush formerBrush = m_brush;
+ wxGraphicsPen formerPen = m_pen;
wxDouble width;
wxDouble height;
wxDouble externalLeading;
GetTextExtent( str , &width, &height, &descent, &externalLeading );
SetBrush( backgroundBrush );
+ // to make sure our 'OffsetToPixelBoundaries' doesn't move the fill shape
+ SetPen( wxNullGraphicsPen );
wxGraphicsPath path = CreatePath();
path.MoveToPoint( x , y );
FillPath( path );
DrawText( str, x ,y, angle);
SetBrush( formerBrush );
+ SetPen( formerPen );
}
void wxGraphicsContext::StrokeLine( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2)
StrokePath( path );
}
-void wxGraphicsContext::DrawLines( size_t n, const wxPoint2DDouble *points, int fillStyle)
+void wxGraphicsContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle)
{
wxASSERT(n > 1);
wxGraphicsPath path = CreatePath();
}
// create a 'native' matrix corresponding to these values
-wxGraphicsMatrix wxGraphicsContext::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+wxGraphicsMatrix wxGraphicsContext::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
wxDouble tx, wxDouble ty) const
{
return GetRenderer()->CreateMatrix(a,b,c,d,tx,ty);
return GetRenderer()->CreateBrush(brush);
}
-// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
-wxGraphicsBrush wxGraphicsContext::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2) const
+wxGraphicsBrush
+wxGraphicsContext::CreateLinearGradientBrush(
+ wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxColour& c1, const wxColour& c2) const
+{
+ return GetRenderer()->CreateLinearGradientBrush
+ (
+ x1, y1,
+ x2, y2,
+ wxGraphicsGradientStops(c1,c2)
+ );
+}
+
+wxGraphicsBrush
+wxGraphicsContext::CreateLinearGradientBrush(
+ wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& gradientStops) const
+{
+ return GetRenderer()->CreateLinearGradientBrush(x1,y1,x2,y2, gradientStops);
+}
+
+wxGraphicsBrush
+wxGraphicsContext::CreateRadialGradientBrush(
+ wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxColour &oColor, const wxColour &cColor) const
{
- return GetRenderer()->CreateLinearGradientBrush(x1,y1,x2,y2,c1,c2);
+ return GetRenderer()->CreateRadialGradientBrush
+ (
+ xo, yo,
+ xc, yc, radius,
+ wxGraphicsGradientStops(oColor, cColor)
+ );
}
-// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
-// with radius r and color cColor
-wxGraphicsBrush wxGraphicsContext::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor) const
+wxGraphicsBrush
+wxGraphicsContext::CreateRadialGradientBrush(
+ wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxGraphicsGradientStops& gradientStops) const
{
- return GetRenderer()->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
+ return GetRenderer()->CreateRadialGradientBrush
+ (
+ xo, yo,
+ xc, yc, radius,
+ gradientStops
+ );
}
// sets the font
return GetRenderer()->CreateFont(font,col);
}
-wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc)
+wxGraphicsBitmap wxGraphicsContext::CreateBitmap( const wxBitmap& bmp ) const
+{
+ return GetRenderer()->CreateBitmap(bmp);
+}
+
+wxGraphicsBitmap wxGraphicsContext::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) const
+{
+ return GetRenderer()->CreateSubBitmap(bmp,x,y,w,h);
+}
+
+/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc)
{
return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
}
+
+/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxMemoryDC& dc)
+{
+ return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
+}
+
+#if wxUSE_PRINTING_ARCHITECTURE
+/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxPrinterDC& dc)
+{
+ return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
+}
+#endif
+
#ifdef __WXMSW__
-wxGraphicsContext* wxGraphicsContext::Create( const wxMemoryDC& dc)
+#if wxUSE_ENH_METAFILE
+/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxEnhMetaFileDC& dc)
{
return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
}
#endif
+#endif
wxGraphicsContext* wxGraphicsContext::CreateFromNative( void * context )
{
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