X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ab451f970cda6d9f3f177b034b055743670b713f..c9ed413ab4f5673ffff00198dc6ce1397398bda4:/src/osx/carbon/graphics.cpp diff --git a/src/osx/carbon/graphics.cpp b/src/osx/carbon/graphics.cpp index 1467704afd..1a07e2278d 100644 --- a/src/osx/carbon/graphics.cpp +++ b/src/osx/carbon/graphics.cpp @@ -666,15 +666,18 @@ public: ~wxMacCoreGraphicsBrushData (); virtual void Apply( wxGraphicsContext* context ); - void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, - const wxColour&c1, const wxColour&c2 ); - void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor ); + void CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops); + void CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, wxDouble radius, + const wxGraphicsGradientStops& stops); virtual bool IsShading() { return m_isShading; } CGShadingRef GetShading() { return m_shading; } protected: - CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 ); + CGFunctionRef CreateGradientFunction(const wxGraphicsGradientStops& stops); + static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out); virtual void Init(); @@ -683,7 +686,42 @@ protected: bool m_isShading; CGFunctionRef m_gradientFunction; CGShadingRef m_shading; - CGFloat *m_gradientComponents; + + // information about a single gradient component + struct GradientComponent + { + CGFloat pos; + CGFloat red; + CGFloat green; + CGFloat blue; + CGFloat alpha; + }; + + // and information about all of them + struct GradientComponents + { + GradientComponents() + { + count = 0; + comps = NULL; + } + + void Init(unsigned count_) + { + count = count_; + comps = new GradientComponent[count]; + } + + ~GradientComponents() + { + delete [] comps; + } + + unsigned count; + GradientComponent *comps; + }; + + GradientComponents m_gradientComponents; }; wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer ) @@ -691,19 +729,24 @@ wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* rend Init(); } -void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, - const wxColour&c1, const wxColour&c2 ) +void +wxMacCoreGraphicsBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops) { - m_gradientFunction = CreateGradientFunction( c1, c2 ); + m_gradientFunction = CreateGradientFunction(stops); m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) x1, (CGFloat) y1), CGPointMake((CGFloat) x2,(CGFloat) y2), m_gradientFunction, true, true ) ; m_isShading = true ; } -void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor ) +void +wxMacCoreGraphicsBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops) { - m_gradientFunction = CreateGradientFunction( oColor, cColor ); + m_gradientFunction = CreateGradientFunction(stops); m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake((CGFloat) xo,(CGFloat) yo), 0, CGPointMake((CGFloat) xc,(CGFloat) yc), (CGFloat) radius, m_gradientFunction, true, true ) ; m_isShading = true ; @@ -723,15 +766,12 @@ wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData() if( m_gradientFunction ) CGFunctionRelease(m_gradientFunction); - - delete[] m_gradientComponents; } void wxMacCoreGraphicsBrushData::Init() { m_gradientFunction = NULL; m_shading = NULL; - m_gradientComponents = NULL; m_isShading = false; } @@ -751,30 +791,70 @@ void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context ) void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out) { - CGFloat* colors = (CGFloat*) info ; + const GradientComponents& stops = *(GradientComponents*) info ; + CGFloat f = *in; - for( int i = 0 ; i < 4 ; ++i ) + if (f <= 0.0) + { + // Start + out[0] = stops.comps[0].red; + out[1] = stops.comps[0].green; + out[2] = stops.comps[0].blue; + out[3] = stops.comps[0].alpha; + } + else if (f >= 1.0) { - out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f; + // end + out[0] = stops.comps[stops.count - 1].red; + out[1] = stops.comps[stops.count - 1].green; + out[2] = stops.comps[stops.count - 1].blue; + out[3] = stops.comps[stops.count - 1].alpha; + } + else + { + // Find first component with position greater than f + unsigned i; + for ( i = 0; i < stops.count; i++ ) + { + if (stops.comps[i].pos > f) + break; + } + + // Interpolated between stops + CGFloat diff = (f - stops.comps[i-1].pos); + CGFloat range = (stops.comps[i].pos - stops.comps[i-1].pos); + CGFloat fact = diff / range; + + out[0] = stops.comps[i - 1].red + (stops.comps[i].red - stops.comps[i - 1].red) * fact; + out[1] = stops.comps[i - 1].green + (stops.comps[i].green - stops.comps[i - 1].green) * fact; + out[2] = stops.comps[i - 1].blue + (stops.comps[i].blue - stops.comps[i - 1].blue) * fact; + out[3] = stops.comps[i - 1].alpha + (stops.comps[i].alpha - stops.comps[i - 1].alpha) * fact; } } -CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 ) +CGFunctionRef +wxMacCoreGraphicsBrushData::CreateGradientFunction(const wxGraphicsGradientStops& stops) { + static const CGFunctionCallbacks callbacks = { 0, &CalculateShadingValues, NULL }; static const CGFloat input_value_range [2] = { 0, 1 }; static const CGFloat output_value_ranges [8] = { 0, 1, 0, 1, 0, 1, 0, 1 }; - m_gradientComponents = new CGFloat[8] ; - m_gradientComponents[0] = (CGFloat) (c1.Red() / 255.0); - m_gradientComponents[1] = (CGFloat) (c1.Green() / 255.0); - m_gradientComponents[2] = (CGFloat) (c1.Blue() / 255.0); - m_gradientComponents[3] = (CGFloat) (c1.Alpha() / 255.0); - m_gradientComponents[4] = (CGFloat) (c2.Red() / 255.0); - m_gradientComponents[5] = (CGFloat) (c2.Green() / 255.0); - m_gradientComponents[6] = (CGFloat) (c2.Blue() / 255.0); - m_gradientComponents[7] = (CGFloat) (c2.Alpha() / 255.0); - - return CGFunctionCreate ( m_gradientComponents, 1, + + m_gradientComponents.Init(stops.GetCount()); + for ( unsigned i = 0; i < m_gradientComponents.count; i++ ) + { + const wxGraphicsGradientStop stop = stops.Item(i); + + m_gradientComponents.comps[i].pos = stop.GetPosition(); + + const wxColour col = stop.GetColour(); + m_gradientComponents.comps[i].red = (CGFloat) (col.Red() / 255.0); + m_gradientComponents.comps[i].green = (CGFloat) (col.Green() / 255.0); + m_gradientComponents.comps[i].blue = (CGFloat) (col.Blue() / 255.0); + m_gradientComponents.comps[i].alpha = (CGFloat) (col.Alpha() / 255.0); + } + + return CGFunctionCreate ( &m_gradientComponents, 1, input_value_range, 4, output_value_ranges, @@ -1002,7 +1082,7 @@ wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const // concatenates the matrix void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t ) { - m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) ); + m_matrix = CGAffineTransformConcat(*((CGAffineTransform*) t->GetNativeMatrix()), m_matrix ); } // sets the matrix to the respective values @@ -1138,9 +1218,12 @@ public : // appends a rectangle as a new closed subpath virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ); - // appends an ellipsis as a new closed subpath fitting the passed rectangle + // appends a circle as a new closed subpath virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r ); + // appends an ellipsis as a new closed subpath fitting the passed rectangle + virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h); + // 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) virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ); @@ -1217,7 +1300,12 @@ void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r ) { - CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true ); + CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x-r,y-r,2*r,2*r)); +} + +void wxMacCoreGraphicsPathData::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) +{ + CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x,y,w,h)); } // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle @@ -1453,14 +1541,23 @@ public : m_cg = cg; m_offset = offset; if ( m_offset ) - CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 ); + { + m_userOffset = CGContextConvertSizeToUserSpace( m_cg, CGSizeMake( 0.5 , 0.5 ) ); + CGContextTranslateCTM( m_cg, m_userOffset.width , m_userOffset.height ); + } + else + { + m_userOffset = CGSizeMake(0.0, 0.0); + } + } ~wxQuartzOffsetHelper( ) { if ( m_offset ) - CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 ); + CGContextTranslateCTM( m_cg, -m_userOffset.width , -m_userOffset.height ); } public : + CGSize m_userOffset; CGContextRef m_cg; bool m_offset; } ; @@ -2010,9 +2107,6 @@ void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg ) CGContextRestoreGState( m_cgContext ); if ( m_contextSynthesized ) { - // TODO: in case of performance problems, try issuing this not too - // frequently (half of refresh rate) - CGContextFlush(m_cgContext); #if wxOSX_USE_CARBON QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext); #endif @@ -2352,10 +2446,13 @@ void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *wid wxCFRef attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) ); wxCFRef line( CTLineCreateWithAttributedString(attrtext) ); - double w; + // round the returned extent: this is probably more correct anyhow but + // we also need to do it to be consistent with GetPartialTextExtents() + // below and avoid strange situation when the last partial extent + // returned by it could have been greater than the full extent returned + // by us CGFloat a, d, l; - - w = CTLineGetTypographicBounds(line, &a, &d, &l) ; + int w = CTLineGetTypographicBounds(line, &a, &d, &l) + 0.5; if ( height ) *height = a+d+l; @@ -2450,7 +2547,7 @@ void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArr int chars = text.length(); for ( int pos = 0; pos < (int)chars; pos ++ ) { - widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5; + widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL ); } return; @@ -2533,7 +2630,7 @@ void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix ) if ( m_cgContext ) CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix()); else - m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix()); + m_windowTransform = CGAffineTransformConcat(*(CGAffineTransform*) matrix.GetNativeMatrix(), m_windowTransform); } // sets the transform of this context @@ -2606,14 +2703,16 @@ public : virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ; - // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2 - virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, - const wxColour&c1, const wxColour&c2) ; + virtual wxGraphicsBrush + CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops); - // 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 - virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor) ; + virtual wxGraphicsBrush + CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops); // sets the font virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ; @@ -2807,25 +2906,27 @@ wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateSubBitmap( const wxGraphicsBit return wxNullGraphicsBitmap; } -// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2 -wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, - const wxColour&c1, const wxColour&c2) +wxGraphicsBrush +wxMacCoreGraphicsRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1, + wxDouble x2, wxDouble y2, + const wxGraphicsGradientStops& stops) { wxGraphicsBrush p; wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this ); - d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2); + d->CreateLinearGradientBrush(x1, y1, x2, y2, stops); p.SetRefData(d); return p; } -// 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 wxMacCoreGraphicsRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, - const wxColour &oColor, const wxColour &cColor) +wxGraphicsBrush +wxMacCoreGraphicsRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, + wxDouble xc, wxDouble yc, + wxDouble radius, + const wxGraphicsGradientStops& stops) { wxGraphicsBrush p; wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this ); - d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor); + d->CreateRadialGradientBrush(xo, yo, xc, yc, radius, stops); p.SetRefData(d); return p; }