Files
wxWidgets/src/mac/carbon/graphics.cpp
Stefan Csomor 74b357ddde fixing pattern phase bugs
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43083 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2006-11-05 19:51:15 +00:00

2014 lines
62 KiB
C++
Executable File

/////////////////////////////////////////////////////////////////////////////
// Name: src/mac/carbon/dccg.cpp
// Purpose: wxDC class
// Author: Stefan Csomor
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Stefan Csomor
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/wxprec.h"
#if wxUSE_GRAPHICS_CONTEXT && wxMAC_USE_CORE_GRAPHICS
#include "wx/graphics.h"
#ifndef WX_PRECOMP
#include "wx/dcclient.h"
#include "wx/log.h"
#include "wx/region.h"
#endif
#include "wx/mac/uma.h"
#ifdef __MSL__
#if __MSL__ >= 0x6000
#include "math.h"
// in case our functions were defined outside std, we make it known all the same
namespace std { }
using namespace std;
#endif
#endif
#include "wx/mac/private.h"
#if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
typedef float CGFloat;
#endif
//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------
#if !defined( __DARWIN__ ) || defined(__MWERKS__)
#ifndef M_PI
const double M_PI = 3.14159265358979;
#endif
#endif
static const double RAD2DEG = 180.0 / M_PI;
//
// Pen, Brushes and Fonts
//
#pragma mark -
#pragma mark wxMacCoreGraphicsPattern, ImagePattern, HatchPattern classes
// CGPattern wrapper class: always allocate on heap, never call destructor
class wxMacCoreGraphicsPattern
{
public :
wxMacCoreGraphicsPattern() {}
// is guaranteed to be called only with a non-Null CGContextRef
virtual void Render( CGContextRef ctxRef ) = 0;
operator CGPatternRef() const { return m_patternRef; }
protected :
virtual ~wxMacCoreGraphicsPattern()
{
// as this is called only when the m_patternRef is been released;
// don't release it again
}
static void _Render( void *info, CGContextRef ctxRef )
{
wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
if ( self && ctxRef )
self->Render( ctxRef );
}
static void _Dispose( void *info )
{
wxMacCoreGraphicsPattern* self = (wxMacCoreGraphicsPattern*) info;
delete self;
}
CGPatternRef m_patternRef;
static const CGPatternCallbacks ms_Callbacks;
};
const CGPatternCallbacks wxMacCoreGraphicsPattern::ms_Callbacks = { 0, &wxMacCoreGraphicsPattern::_Render, &wxMacCoreGraphicsPattern::_Dispose };
class ImagePattern : public wxMacCoreGraphicsPattern
{
public :
ImagePattern( const wxBitmap* bmp , const CGAffineTransform& transform )
{
wxASSERT( bmp && bmp->Ok() );
Init( (CGImageRef) bmp->CGImageCreate() , transform );
}
// ImagePattern takes ownership of CGImageRef passed in
ImagePattern( CGImageRef image , const CGAffineTransform& transform )
{
if ( image )
CFRetain( image );
Init( image , transform );
}
virtual void Render( CGContextRef ctxRef )
{
if (m_image != NULL)
HIViewDrawCGImage( ctxRef, &m_imageBounds, m_image );
}
protected :
void Init( CGImageRef image, const CGAffineTransform& transform )
{
m_image = image;
if ( m_image )
{
m_imageBounds = CGRectMake( 0.0, 0.0, (CGFloat)CGImageGetWidth( m_image ), (CGFloat)CGImageGetHeight( m_image ) );
m_patternRef = CGPatternCreate(
this , m_imageBounds, transform ,
m_imageBounds.size.width, m_imageBounds.size.height,
kCGPatternTilingNoDistortion, true , &wxMacCoreGraphicsPattern::ms_Callbacks );
}
}
virtual ~ImagePattern()
{
if ( m_image )
CGImageRelease( m_image );
}
CGImageRef m_image;
CGRect m_imageBounds;
};
class HatchPattern : public wxMacCoreGraphicsPattern
{
public :
HatchPattern( int hatchstyle, const CGAffineTransform& transform )
{
m_hatch = hatchstyle;
m_imageBounds = CGRectMake( 0.0, 0.0, 8.0 , 8.0 );
m_patternRef = CGPatternCreate(
this , m_imageBounds, transform ,
m_imageBounds.size.width, m_imageBounds.size.height,
kCGPatternTilingNoDistortion, false , &wxMacCoreGraphicsPattern::ms_Callbacks );
}
void StrokeLineSegments( CGContextRef ctxRef , const CGPoint pts[] , size_t count )
{
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
if ( UMAGetSystemVersion() >= 0x1040 )
{
CGContextStrokeLineSegments( ctxRef , pts , count );
}
else
#endif
{
CGContextBeginPath( ctxRef );
for (size_t i = 0; i < count; i += 2)
{
CGContextMoveToPoint(ctxRef, pts[i].x, pts[i].y);
CGContextAddLineToPoint(ctxRef, pts[i+1].x, pts[i+1].y);
}
CGContextStrokePath(ctxRef);
}
}
virtual void Render( CGContextRef ctxRef )
{
switch ( m_hatch )
{
case wxBDIAGONAL_HATCH :
{
CGPoint pts[] =
{
{ 8.0 , 0.0 } , { 0.0 , 8.0 }
};
StrokeLineSegments( ctxRef , pts , 2 );
}
break;
case wxCROSSDIAG_HATCH :
{
CGPoint pts[] =
{
{ 0.0 , 0.0 } , { 8.0 , 8.0 } ,
{ 8.0 , 0.0 } , { 0.0 , 8.0 }
};
StrokeLineSegments( ctxRef , pts , 4 );
}
break;
case wxFDIAGONAL_HATCH :
{
CGPoint pts[] =
{
{ 0.0 , 0.0 } , { 8.0 , 8.0 }
};
StrokeLineSegments( ctxRef , pts , 2 );
}
break;
case wxCROSS_HATCH :
{
CGPoint pts[] =
{
{ 0.0 , 4.0 } , { 8.0 , 4.0 } ,
{ 4.0 , 0.0 } , { 4.0 , 8.0 } ,
};
StrokeLineSegments( ctxRef , pts , 4 );
}
break;
case wxHORIZONTAL_HATCH :
{
CGPoint pts[] =
{
{ 0.0 , 4.0 } , { 8.0 , 4.0 } ,
};
StrokeLineSegments( ctxRef , pts , 2 );
}
break;
case wxVERTICAL_HATCH :
{
CGPoint pts[] =
{
{ 4.0 , 0.0 } , { 4.0 , 8.0 } ,
};
StrokeLineSegments( ctxRef , pts , 2 );
}
break;
default:
break;
}
}
protected :
virtual ~HatchPattern() {}
CGRect m_imageBounds;
int m_hatch;
};
class wxMacCoreGraphicsPenData : public wxGraphicsObjectRefData
{
public:
wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
~wxMacCoreGraphicsPenData();
void Init();
virtual void Apply( wxGraphicsContext* context );
virtual wxDouble GetWidth() { return m_width; }
protected :
CGLineCap m_cap;
wxMacCFRefHolder<CGColorRef> m_color;
wxMacCFRefHolder<CGColorSpaceRef> m_colorSpace;
CGLineJoin m_join;
CGFloat m_width;
int m_count;
const CGFloat *m_lengths;
CGFloat *m_userLengths;
bool m_isPattern;
wxMacCFRefHolder<CGPatternRef> m_pattern;
CGFloat* m_patternColorComponents;
};
wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer, const wxPen &pen ) :
wxGraphicsObjectRefData( renderer )
{
Init();
float components[4] = { pen.GetColour().Red() / 255.0 , pen.GetColour().Green() / 255.0 ,
pen.GetColour().Blue() / 255.0 , pen.GetColour().Alpha() / 255.0 } ;
m_color.Set( CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ) ;
// TODO: * m_dc->m_scaleX
m_width = pen.GetWidth();
if (m_width <= 0.0)
m_width = 0.1;
switch ( pen.GetCap() )
{
case wxCAP_ROUND :
m_cap = kCGLineCapRound;
break;
case wxCAP_PROJECTING :
m_cap = kCGLineCapSquare;
break;
case wxCAP_BUTT :
m_cap = kCGLineCapButt;
break;
default :
m_cap = kCGLineCapButt;
break;
}
switch ( pen.GetJoin() )
{
case wxJOIN_BEVEL :
m_join = kCGLineJoinBevel;
break;
case wxJOIN_MITER :
m_join = kCGLineJoinMiter;
break;
case wxJOIN_ROUND :
m_join = kCGLineJoinRound;
break;
default :
m_join = kCGLineJoinMiter;
break;
}
const CGFloat dashUnit = m_width < 1.0 ? 1.0 : m_width;
const CGFloat dotted[] = { dashUnit , dashUnit + 2.0 };
static const CGFloat short_dashed[] = { 9.0 , 6.0 };
static const CGFloat dashed[] = { 19.0 , 9.0 };
static const CGFloat dotted_dashed[] = { 9.0 , 6.0 , 3.0 , 3.0 };
switch ( pen.GetStyle() )
{
case wxSOLID :
break;
case wxDOT :
m_count = WXSIZEOF(dotted);
m_userLengths = new CGFloat[ m_count ] ;
memcpy( m_userLengths, dotted, sizeof(dotted) );
m_lengths = m_userLengths;
break;
case wxLONG_DASH :
m_count = WXSIZEOF(dashed);
m_lengths = dashed;
break;
case wxSHORT_DASH :
m_count = WXSIZEOF(short_dashed);
m_lengths = short_dashed;
break;
case wxDOT_DASH :
m_count = WXSIZEOF(dotted_dashed);
m_lengths = dotted_dashed;
break;
case wxUSER_DASH :
wxDash *dashes;
m_count = pen.GetDashes( &dashes );
if ((dashes != NULL) && (m_count > 0))
{
m_userLengths = new CGFloat[m_count];
for ( int i = 0; i < m_count; ++i )
{
m_userLengths[i] = dashes[i] * dashUnit;
if ( i % 2 == 1 && m_userLengths[i] < dashUnit + 2.0 )
m_userLengths[i] = dashUnit + 2.0;
else if ( i % 2 == 0 && m_userLengths[i] < dashUnit )
m_userLengths[i] = dashUnit;
}
}
m_lengths = m_userLengths;
break;
case wxSTIPPLE :
{
wxBitmap* bmp = pen.GetStipple();
if ( bmp && bmp->Ok() )
{
m_colorSpace.Set( CGColorSpaceCreatePattern( NULL ) );
m_pattern.Set( *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
m_patternColorComponents = new CGFloat[1] ;
m_patternColorComponents[0] = 1.0;
m_isPattern = true;
}
}
break;
default :
{
m_isPattern = true;
m_colorSpace.Set( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
m_pattern.Set( *( new HatchPattern( pen.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
m_patternColorComponents = new CGFloat[4] ;
m_patternColorComponents[0] = pen.GetColour().Red() / 255.0;
m_patternColorComponents[1] = pen.GetColour().Green() / 255.0;
m_patternColorComponents[2] = pen.GetColour().Blue() / 255.0;
m_patternColorComponents[3] = pen.GetColour().Alpha() / 255.0;
}
break;
}
if ((m_lengths != NULL) && (m_count > 0))
{
// force the line cap, otherwise we get artifacts (overlaps) and just solid lines
m_cap = kCGLineCapButt;
}
}
wxMacCoreGraphicsPenData::~wxMacCoreGraphicsPenData()
{
delete[] m_userLengths;
delete[] m_patternColorComponents;
}
void wxMacCoreGraphicsPenData::Init()
{
m_lengths = NULL;
m_userLengths = NULL;
m_width = 0;
m_count = 0;
m_patternColorComponents = NULL;
m_isPattern = false;
}
void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
{
CGContextRef cg = (CGContextRef) context->GetNativeContext();
CGContextSetLineWidth( cg , m_width );
CGContextSetLineJoin( cg , m_join );
CGContextSetLineDash( cg , 0 , m_lengths , m_count );
CGContextSetLineCap( cg , m_cap );
if ( m_isPattern )
{
CGAffineTransform matrix = CGContextGetCTM( cg );
CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
CGContextSetStrokeColorSpace( cg , m_colorSpace );
CGContextSetStrokePattern( cg, m_pattern , m_patternColorComponents );
}
else
{
CGContextSetStrokeColorWithColor( cg , m_color );
}
}
//
// Brush
//
class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
{
public:
wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
~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 );
virtual bool IsShading() { return m_isShading; }
CGShadingRef GetShading() { return m_shading; }
protected:
CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
virtual void Init();
wxMacCFRefHolder<CGColorRef> m_color;
wxMacCFRefHolder<CGColorSpaceRef> m_colorSpace;
bool m_isPattern;
wxMacCFRefHolder<CGPatternRef> m_pattern;
CGFloat* m_patternColorComponents;
bool m_isShading;
CGFunctionRef m_gradientFunction;
CGShadingRef m_shading;
CGFloat *m_gradientComponents;
};
wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
{
Init();
}
void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
const wxColour&c1, const wxColour&c2 )
{
m_gradientFunction = CreateGradientFunction( c1, c2 );
m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake(x1,y1), CGPointMake(x2,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 )
{
m_gradientFunction = CreateGradientFunction( oColor, cColor );
m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake(xo,yo), 0, CGPointMake(xc,yc), radius, m_gradientFunction, true, true ) ;
m_isShading = true ;
}
wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer )
{
Init();
if ( brush.GetStyle() == wxSOLID )
{
float components[4] = { brush.GetColour().Red() / 255.0 , brush.GetColour().Green() / 255.0 ,
brush.GetColour().Blue() / 255.0 , brush.GetColour().Alpha() / 255.0 } ;
m_color.Set( CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ) ;
}
else if ( brush.IsHatch() )
{
m_isPattern = true;
m_colorSpace.Set( CGColorSpaceCreatePattern( wxMacGetGenericRGBColorSpace() ) );
m_pattern.Set( *( new HatchPattern( brush.GetStyle() , CGAffineTransformMakeScale( 1,-1 ) ) ) );
m_patternColorComponents = new CGFloat[4] ;
m_patternColorComponents[0] = brush.GetColour().Red() / 255.0;
m_patternColorComponents[1] = brush.GetColour().Green() / 255.0;
m_patternColorComponents[2] = brush.GetColour().Blue() / 255.0;
m_patternColorComponents[3] = brush.GetColour().Alpha() / 255.0;
}
else
{
// now brush is a bitmap
wxBitmap* bmp = brush.GetStipple();
if ( bmp && bmp->Ok() )
{
m_isPattern = true;
m_patternColorComponents = new CGFloat[1] ;
m_patternColorComponents[0] = 1.0;
m_colorSpace.Set( CGColorSpaceCreatePattern( NULL ) );
m_pattern.Set( *( new ImagePattern( bmp , CGAffineTransformMakeScale( 1,-1 ) ) ) );
}
}
}
wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()
{
if ( m_shading )
CGShadingRelease(m_shading);
if( m_gradientFunction )
CGFunctionRelease(m_gradientFunction);
delete[] m_gradientComponents;
delete[] m_patternColorComponents;
}
void wxMacCoreGraphicsBrushData::Init()
{
m_patternColorComponents = NULL;
m_gradientFunction = NULL;
m_shading = NULL;
m_isPattern = false;
m_gradientComponents = NULL;
m_isShading = false;
}
void wxMacCoreGraphicsBrushData::Apply( wxGraphicsContext* context )
{
CGContextRef cg = (CGContextRef) context->GetNativeContext();
if ( m_isShading )
{
// nothing to set as shades are processed by clipping using the path and filling
}
else
{
if ( m_isPattern )
{
CGAffineTransform matrix = CGContextGetCTM( cg );
CGContextSetPatternPhase( cg, CGSizeMake(matrix.tx, matrix.ty) );
CGContextSetFillColorSpace( cg , m_colorSpace );
CGContextSetFillPattern( cg, m_pattern , m_patternColorComponents );
}
else
{
CGContextSetFillColorWithColor( cg, m_color );
}
}
}
void wxMacCoreGraphicsBrushData::CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out)
{
CGFloat* colors = (CGFloat*) info ;
CGFloat f = *in;
for( int i = 0 ; i < 4 ; ++i )
{
out[i] = colors[i] + ( colors[4+i] - colors[i] ) * f;
}
}
CGFunctionRef wxMacCoreGraphicsBrushData::CreateGradientFunction( const wxColour& c1, const wxColour& c2 )
{
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] = c1.Red() / 255.0;
m_gradientComponents[1] = c1.Green() / 255.0;
m_gradientComponents[2] = c1.Blue() / 255.0;
m_gradientComponents[3] = c1.Alpha() / 255.0;
m_gradientComponents[4] = c2.Red() / 255.0;
m_gradientComponents[5] = c2.Green() / 255.0;
m_gradientComponents[6] = c2.Blue() / 255.0;
m_gradientComponents[7] = c2.Alpha() / 255.0;
return CGFunctionCreate ( m_gradientComponents, 1,
input_value_range,
4,
output_value_ranges,
&callbacks);
}
//
// Font
//
class wxMacCoreGraphicsFontData : public wxGraphicsObjectRefData
{
public:
wxMacCoreGraphicsFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
~wxMacCoreGraphicsFontData();
virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
private :
ATSUStyle m_macATSUIStyle;
};
wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col) : wxGraphicsObjectRefData( renderer )
{
m_macATSUIStyle = NULL;
OSStatus status;
status = ATSUCreateAndCopyStyle( (ATSUStyle) font.MacGetATSUStyle() , &m_macATSUIStyle );
wxASSERT_MSG( status == noErr, wxT("couldn't create ATSU style") );
// we need the scale here ...
Fixed atsuSize = IntToFixed( int( 1 * font.MacGetFontSize()) );
RGBColor atsuColor = MAC_WXCOLORREF( col.GetPixel() );
ATSUAttributeTag atsuTags[] =
{
kATSUSizeTag ,
kATSUColorTag ,
};
ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
sizeof( Fixed ) ,
sizeof( RGBColor ) ,
};
ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
&atsuSize ,
&atsuColor ,
};
status = ::ATSUSetAttributes(
m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
atsuTags, atsuSizes, atsuValues);
wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
}
wxMacCoreGraphicsFontData::~wxMacCoreGraphicsFontData()
{
if ( m_macATSUIStyle )
{
::ATSUDisposeStyle((ATSUStyle)m_macATSUIStyle);
m_macATSUIStyle = NULL;
}
}
//
// Graphics Matrix
//
//-----------------------------------------------------------------------------
// wxMacCoreGraphicsMatrix declaration
//-----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxMacCoreGraphicsMatrixData : public wxGraphicsMatrixData
{
public :
wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) ;
virtual ~wxMacCoreGraphicsMatrixData() ;
virtual wxGraphicsObjectRefData *Clone() const ;
// concatenates the matrix
virtual void Concat( const wxGraphicsMatrixData *t );
// sets the matrix to the respective values
virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
wxDouble tx=0.0, wxDouble ty=0.0);
// makes this the inverse matrix
virtual void Invert();
// returns true if the elements of the transformation matrix are equal ?
virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
// return true if this is the identity matrix
virtual bool IsIdentity() const;
//
// transformation
//
// add the translation to this matrix
virtual void Translate( wxDouble dx , wxDouble dy );
// add the scale to this matrix
virtual void Scale( wxDouble xScale , wxDouble yScale );
// add the rotation to this matrix (radians)
virtual void Rotate( wxDouble angle );
//
// apply the transforms
//
// applies that matrix to the point
virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
// applies the matrix except for translations
virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
// returns the native representation
virtual void * GetNativeMatrix() const;
private :
CGAffineTransform m_matrix;
} ;
//-----------------------------------------------------------------------------
// wxMacCoreGraphicsMatrix implementation
//-----------------------------------------------------------------------------
wxMacCoreGraphicsMatrixData::wxMacCoreGraphicsMatrixData(wxGraphicsRenderer* renderer) : wxGraphicsMatrixData(renderer)
{
}
wxMacCoreGraphicsMatrixData::~wxMacCoreGraphicsMatrixData()
{
}
wxGraphicsObjectRefData *wxMacCoreGraphicsMatrixData::Clone() const
{
wxMacCoreGraphicsMatrixData* m = new wxMacCoreGraphicsMatrixData(GetRenderer()) ;
m->m_matrix = m_matrix ;
return m;
}
// concatenates the matrix
void wxMacCoreGraphicsMatrixData::Concat( const wxGraphicsMatrixData *t )
{
m_matrix = CGAffineTransformConcat(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()) );
}
// sets the matrix to the respective values
void wxMacCoreGraphicsMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
wxDouble tx, wxDouble ty)
{
m_matrix = CGAffineTransformMake(a,b,c,d,tx,ty);
}
// makes this the inverse matrix
void wxMacCoreGraphicsMatrixData::Invert()
{
m_matrix = CGAffineTransformInvert( m_matrix );
}
// returns true if the elements of the transformation matrix are equal ?
bool wxMacCoreGraphicsMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
{
const CGAffineTransform* tm = (CGAffineTransform*) t->GetNativeMatrix();
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
if ( CGAffineTransformEqualToTransform!=NULL )
{
return CGAffineTransformEqualToTransform(m_matrix, *((CGAffineTransform*) t->GetNativeMatrix()));
}
else
#endif
{
return (
m_matrix.a == tm->a &&
m_matrix.b == tm->b &&
m_matrix.c == tm->c &&
m_matrix.d == tm->d &&
m_matrix.tx == tm->tx &&
m_matrix.ty == tm->ty ) ;
}
}
// return true if this is the identity matrix
bool wxMacCoreGraphicsMatrixData::IsIdentity() const
{
return ( m_matrix.a == 1 && m_matrix.d == 1 &&
m_matrix.b == 0 && m_matrix.d == 0 && m_matrix.tx == 0 && m_matrix.ty == 0);
}
//
// transformation
//
// add the translation to this matrix
void wxMacCoreGraphicsMatrixData::Translate( wxDouble dx , wxDouble dy )
{
m_matrix = CGAffineTransformTranslate( m_matrix, dx, dy);
}
// add the scale to this matrix
void wxMacCoreGraphicsMatrixData::Scale( wxDouble xScale , wxDouble yScale )
{
m_matrix = CGAffineTransformScale( m_matrix, xScale, yScale);
}
// add the rotation to this matrix (radians)
void wxMacCoreGraphicsMatrixData::Rotate( wxDouble angle )
{
m_matrix = CGAffineTransformRotate( m_matrix, angle);
}
//
// apply the transforms
//
// applies that matrix to the point
void wxMacCoreGraphicsMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
{
CGPoint pt = CGPointApplyAffineTransform( CGPointMake(*x,*y), m_matrix);
*x = pt.x;
*y = pt.y;
}
// applies the matrix except for translations
void wxMacCoreGraphicsMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
{
CGSize sz = CGSizeApplyAffineTransform( CGSizeMake(*dx,*dy) , m_matrix );
*dx = sz.width;
*dy = sz.height;
}
// returns the native representation
void * wxMacCoreGraphicsMatrixData::GetNativeMatrix() const
{
return (void*) &m_matrix;
}
//
// Graphics Path
//
//-----------------------------------------------------------------------------
// wxMacCoreGraphicsPath declaration
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxMacCoreGraphicsPathData : public wxGraphicsPathData
{
public :
wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path = NULL);
~wxMacCoreGraphicsPathData();
virtual wxGraphicsObjectRefData *Clone() const;
// begins a new subpath at (x,y)
virtual void MoveToPoint( wxDouble x, wxDouble y );
// adds a straight line from the current point to (x,y)
virtual void AddLineToPoint( wxDouble x, wxDouble y );
// adds a cubic Bezier curve from the current point, using two control points and an end point
virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
// closes the current sub-path
virtual void CloseSubpath();
// gets the last point of the current path, (0,0) if not yet set
virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
// adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise );
//
// These are convenience functions which - if not available natively will be assembled
// using the primitives from above
//
// adds a quadratic Bezier curve from the current point, using a control point and an end point
virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
// 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
virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
// 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 );
// adds another path
virtual void AddPath( const wxGraphicsPathData* path );
// returns the native path
virtual void * GetNativePath() const { return m_path; }
// give the native path returned by GetNativePath() back (there might be some deallocations necessary)
virtual void UnGetNativePath(void *p) const {}
// transforms each point of this path by the matrix
virtual void Transform( const wxGraphicsMatrixData* matrix );
// gets the bounding box enclosing all points (possibly including control points)
virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *y) const;
virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE) const;
private :
CGMutablePathRef m_path;
};
//-----------------------------------------------------------------------------
// wxMacCoreGraphicsPath implementation
//-----------------------------------------------------------------------------
wxMacCoreGraphicsPathData::wxMacCoreGraphicsPathData( wxGraphicsRenderer* renderer, CGMutablePathRef path) : wxGraphicsPathData(renderer)
{
if ( path )
m_path = path;
else
m_path = CGPathCreateMutable();
}
wxMacCoreGraphicsPathData::~wxMacCoreGraphicsPathData()
{
CGPathRelease( m_path );
}
wxGraphicsObjectRefData* wxMacCoreGraphicsPathData::Clone() const
{
wxMacCoreGraphicsPathData* clone = new wxMacCoreGraphicsPathData(GetRenderer(),CGPathCreateMutableCopy(m_path));
return clone ;
}
// opens (starts) a new subpath
void wxMacCoreGraphicsPathData::MoveToPoint( wxDouble x1 , wxDouble y1 )
{
CGPathMoveToPoint( m_path , NULL , x1 , y1 );
}
void wxMacCoreGraphicsPathData::AddLineToPoint( wxDouble x1 , wxDouble y1 )
{
CGPathAddLineToPoint( m_path , NULL , x1 , y1 );
}
void wxMacCoreGraphicsPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
{
CGPathAddCurveToPoint( m_path , NULL , cx1 , cy1 , cx2, cy2, x , y );
}
void wxMacCoreGraphicsPathData::AddQuadCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble x, wxDouble y )
{
CGPathAddQuadCurveToPoint( m_path , NULL , cx1 , cy1 , x , y );
}
void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
CGRect cgRect = { { x , y } , { w , h } };
CGPathAddRect( m_path , NULL , cgRect );
}
void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
{
CGPathAddArc( m_path , NULL , x , y , r , 0.0 , 2 * M_PI , true );
}
// adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
void wxMacCoreGraphicsPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
{
// inverse direction as we the 'normal' state is a y axis pointing down, ie mirrored to the standard core graphics setup
CGPathAddArc( m_path, NULL , x, y, r, startAngle, endAngle, !clockwise);
}
void wxMacCoreGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
{
CGPathAddArcToPoint( m_path, NULL , x1, y1, x2, y2, r);
}
void wxMacCoreGraphicsPathData::AddPath( const wxGraphicsPathData* path )
{
CGPathAddPath( m_path , NULL, (CGPathRef) path->GetNativePath() );
}
// closes the current subpath
void wxMacCoreGraphicsPathData::CloseSubpath()
{
CGPathCloseSubpath( m_path );
}
// gets the last point of the current path, (0,0) if not yet set
void wxMacCoreGraphicsPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
{
CGPoint p = CGPathGetCurrentPoint( m_path );
*x = p.x;
*y = p.y;
}
// transforms each point of this path by the matrix
void wxMacCoreGraphicsPathData::Transform( const wxGraphicsMatrixData* matrix )
{
CGMutablePathRef p = CGPathCreateMutable() ;
CGPathAddPath( p, (CGAffineTransform*) matrix->GetNativeMatrix() , m_path );
CGPathRelease( m_path );
m_path = p;
}
// gets the bounding box enclosing all points (possibly including control points)
void wxMacCoreGraphicsPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
{
CGRect bounds = CGPathGetBoundingBox( m_path ) ;
*x = bounds.origin.x;
*y = bounds.origin.y;
*w = bounds.size.width;
*h = bounds.size.height;
}
bool wxMacCoreGraphicsPathData::Contains( wxDouble x, wxDouble y, int fillStyle) const
{
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
if ( CGPathContainsPoint!=NULL )
{
return CGPathContainsPoint( m_path, NULL, CGPointMake(x,y), fillStyle == wxODDEVEN_RULE );
}
else
#endif
{
// TODO : implementation for 10.3
CGRect bounds = CGPathGetBoundingBox( m_path ) ;
return CGRectContainsPoint( bounds, CGPointMake(x,y) ) == 1;
}
}
//
// Graphics Context
//
//-----------------------------------------------------------------------------
// wxMacCoreGraphicsContext declaration
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxMacCoreGraphicsContext : public wxGraphicsContext
{
public:
wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext );
wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window );
wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window );
wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer);
wxMacCoreGraphicsContext();
~wxMacCoreGraphicsContext();
void Init();
// push the current state of the context, ie the transformation matrix on a stack
virtual void PushState();
// pops a stored state from the stack
virtual void PopState();
// clips drawings to the region
virtual void Clip( const wxRegion &region );
// clips drawings to the rect
virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
// resets the clipping to original extent
virtual void ResetClip();
virtual void * GetNativeContext();
//
// transformation
//
// translate
virtual void Translate( wxDouble dx , wxDouble dy );
// scale
virtual void Scale( wxDouble xScale , wxDouble yScale );
// rotate (radians)
virtual void Rotate( wxDouble angle );
// concatenates this transform with the current transform of this context
virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
// sets the transform of this context
virtual void SetTransform( const wxGraphicsMatrix& matrix );
// gets the matrix of this context
virtual wxGraphicsMatrix GetTransform() const;
//
// setting the paint
//
// strokes along a path with the current pen
virtual void StrokePath( const wxGraphicsPath &path );
// fills a path with the current brush
virtual void FillPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
// draws a path by first filling and then stroking
virtual void DrawPath( const wxGraphicsPath &path, int fillStyle = wxODDEVEN_RULE );
virtual bool ShouldOffset() const
{
int penwidth = 0 ;
if ( !m_pen.IsNull() )
{
penwidth = (int)((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->GetWidth();
if ( penwidth == 0 )
penwidth = 1;
}
return ( penwidth % 2 ) == 1;
}
//
// text
//
virtual void DrawText( const wxString &str, wxDouble x, wxDouble y );
virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const;
virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
//
// image support
//
virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
void SetNativeContext( CGContextRef cg );
DECLARE_NO_COPY_CLASS(wxMacCoreGraphicsContext)
DECLARE_DYNAMIC_CLASS(wxMacCoreGraphicsContext)
private:
void EnsureIsValid();
CGContextRef m_cgContext;
WindowRef m_windowRef;
bool m_releaseContext;
CGAffineTransform m_windowTransform;
wxMacCFRefHolder<HIShapeRef> m_clipRgn;
};
//-----------------------------------------------------------------------------
// device context implementation
//
// more and more of the dc functionality should be implemented by calling
// the appropricate wxMacCoreGraphicsContext, but we will have to do that step by step
// also coordinate conversions should be moved to native matrix ops
//-----------------------------------------------------------------------------
// we always stock two context states, one at entry, to be able to preserve the
// state we were called with, the other one after changing to HI Graphics orientation
// (this one is used for getting back clippings etc)
//-----------------------------------------------------------------------------
// wxMacCoreGraphicsContext implementation
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsContext, wxGraphicsContext)
void wxMacCoreGraphicsContext::Init()
{
m_cgContext = NULL;
m_releaseContext = false;
m_windowRef = NULL;
HIRect r = CGRectMake(0,0,0,0);
m_clipRgn.Set(HIShapeCreateWithRect(&r));
}
wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, CGContextRef cgcontext ) : wxGraphicsContext(renderer)
{
Init();
SetNativeContext(cgcontext);
}
wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, WindowRef window ): wxGraphicsContext(renderer)
{
Init();
m_windowRef = window;
}
wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer, wxWindow* window ): wxGraphicsContext(renderer)
{
Init();
m_windowRef = (WindowRef) window->MacGetTopLevelWindowRef();
int originX , originY;
originX = originY = 0;
window->MacWindowToRootWindow( &originX , &originY );
Rect bounds;
GetWindowBounds( m_windowRef, kWindowContentRgn, &bounds );
m_windowTransform = CGAffineTransformMakeTranslation( 0 , bounds.bottom - bounds.top );
m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
m_windowTransform = CGAffineTransformTranslate( m_windowTransform, originX, originY ) ;
}
wxMacCoreGraphicsContext::wxMacCoreGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsContext(renderer)
{
Init();
}
wxMacCoreGraphicsContext::wxMacCoreGraphicsContext() : wxGraphicsContext(NULL)
{
Init();
wxLogDebug(wxT("Illegal Constructor called"));
}
wxMacCoreGraphicsContext::~wxMacCoreGraphicsContext()
{
SetNativeContext(NULL);
}
void wxMacCoreGraphicsContext::EnsureIsValid()
{
if ( !m_cgContext )
{
OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
wxASSERT_MSG( status == noErr , wxT("Cannot nest wxDCs on the same window") );
CGContextConcatCTM( m_cgContext, m_windowTransform );
CGContextSaveGState( m_cgContext );
m_releaseContext = true;
if ( !HIShapeIsEmpty(m_clipRgn) )
{
HIShapeReplacePathInCGContext( m_clipRgn, m_cgContext );
CGContextClip( m_cgContext );
}
CGContextSaveGState( m_cgContext );
}
}
void wxMacCoreGraphicsContext::Clip( const wxRegion &region )
{
if( m_cgContext )
{
HIShapeRef shape = HIShapeCreateWithQDRgn( (RgnHandle) region.GetWXHRGN() );
HIShapeReplacePathInCGContext( shape, m_cgContext );
CGContextClip( m_cgContext );
CFRelease( shape );
}
else
{
m_clipRgn.Set(HIShapeCreateWithQDRgn( (RgnHandle) region.GetWXHRGN() ));
}
}
// clips drawings to the rect
void wxMacCoreGraphicsContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
HIRect r = CGRectMake( x , y , w , h );
if ( m_cgContext )
{
CGContextClipToRect( m_cgContext, r );
}
else
{
m_clipRgn.Set(HIShapeCreateWithRect(&r));
}
}
// resets the clipping to original extent
void wxMacCoreGraphicsContext::ResetClip()
{
if ( m_cgContext )
{
// there is no way for clearing the clip, we can only revert to the stored
// state, but then we have to make sure everything else is NOT restored
CGAffineTransform transform = CGContextGetCTM( m_cgContext );
CGContextRestoreGState( m_cgContext );
CGContextSaveGState( m_cgContext );
CGAffineTransform transformNew = CGContextGetCTM( m_cgContext );
transformNew = CGAffineTransformInvert( transformNew ) ;
CGContextConcatCTM( m_cgContext, transformNew);
CGContextConcatCTM( m_cgContext, transform);
}
else
{
HIRect r = CGRectMake(0,0,0,0);
m_clipRgn.Set(HIShapeCreateWithRect(&r));
}
}
void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
{
if ( m_pen.IsNull() )
return ;
EnsureIsValid();
bool offset = ShouldOffset();
if ( offset )
CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
CGContextStrokePath( m_cgContext );
if ( offset )
CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
}
void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , int fillStyle )
{
if ( !m_brush.IsNull() && ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
{
// when using shading, we cannot draw pen and brush at the same time
// revert to the base implementation of first filling and then stroking
wxGraphicsContext::DrawPath( path, fillStyle );
return;
}
CGPathDrawingMode mode = kCGPathFill ;
if ( m_brush.IsNull() )
{
if ( m_pen.IsNull() )
return;
else
mode = kCGPathStroke;
}
else
{
if ( m_pen.IsNull() )
{
if ( fillStyle == wxODDEVEN_RULE )
mode = kCGPathEOFill;
else
mode = kCGPathFill;
}
else
{
if ( fillStyle == wxODDEVEN_RULE )
mode = kCGPathEOFillStroke;
else
mode = kCGPathFillStroke;
}
}
EnsureIsValid();
if ( !m_brush.IsNull() )
((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
if ( !m_pen.IsNull() )
((wxMacCoreGraphicsPenData*)m_pen.GetRefData())->Apply(this);
bool offset = ShouldOffset();
if ( offset )
CGContextTranslateCTM( m_cgContext, 0.5, 0.5 );
CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
CGContextDrawPath( m_cgContext , mode );
if ( offset )
CGContextTranslateCTM( m_cgContext, -0.5, -0.5 );
}
void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , int fillStyle )
{
if ( m_brush.IsNull() )
return;
EnsureIsValid();
if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
{
CGContextSaveGState( m_cgContext );
CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
CGContextClip( m_cgContext );
CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
CGContextRestoreGState( m_cgContext);
}
else
{
((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
if ( fillStyle == wxODDEVEN_RULE )
CGContextEOFillPath( m_cgContext );
else
CGContextFillPath( m_cgContext );
}
}
void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
{
// we allow either setting or clearing but not replacing
wxASSERT( m_cgContext == NULL || cg == NULL );
if ( m_cgContext )
{
// TODO : when is this necessary - should we add a Flush() method ? CGContextSynchronize( m_cgContext );
CGContextRestoreGState( m_cgContext );
CGContextRestoreGState( m_cgContext );
if ( m_releaseContext )
QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
else
CGContextRelease(m_cgContext);
}
m_cgContext = cg;
// FIXME: This check is needed because currently we need to use a DC/GraphicsContext
// in order to get font properties, like wxFont::GetPixelSize, but since we don't have
// a native window attached to use, I create a wxGraphicsContext with a NULL CGContextRef
// for this one operation.
// When wxFont::GetPixelSize on Mac no longer needs a graphics context, this check
// can be removed.
if (m_cgContext)
{
CGContextRetain(m_cgContext);
CGContextSaveGState( m_cgContext );
CGContextSaveGState( m_cgContext );
m_releaseContext = false;
}
}
void wxMacCoreGraphicsContext::Translate( wxDouble dx , wxDouble dy )
{
if ( m_cgContext )
CGContextTranslateCTM( m_cgContext, dx, dy );
else
m_windowTransform = CGAffineTransformTranslate(m_windowTransform,dx,dy);
}
void wxMacCoreGraphicsContext::Scale( wxDouble xScale , wxDouble yScale )
{
if ( m_cgContext )
CGContextScaleCTM( m_cgContext , xScale , yScale );
else
m_windowTransform = CGAffineTransformScale(m_windowTransform,xScale,yScale);
}
void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
{
if ( m_cgContext )
CGContextRotateCTM( m_cgContext , angle );
else
m_windowTransform = CGAffineTransformRotate(m_windowTransform,angle);
}
void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
EnsureIsValid();
CGImageRef image = (CGImageRef)( bmp.CGImageCreate() );
HIRect r = CGRectMake( x , y , w , h );
if ( bmp.GetDepth() == 1 )
{
// is is a mask, the '1' in the mask tell where to draw the current brush
if ( !m_brush.IsNull() )
{
if ( ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->IsShading() )
{
// TODO clip to mask
/*
CGContextSaveGState( m_cgContext );
CGContextAddPath( m_cgContext , (CGPathRef) path.GetNativePath() );
CGContextClip( m_cgContext );
CGContextDrawShading( m_cgContext, ((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->GetShading() );
CGContextRestoreGState( m_cgContext);
*/
}
else
{
((wxMacCoreGraphicsBrushData*)m_brush.GetRefData())->Apply(this);
HIViewDrawCGImage( m_cgContext , &r , image );
}
}
}
else
{
HIViewDrawCGImage( m_cgContext , &r , image );
}
CGImageRelease( image );
}
void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
EnsureIsValid();
CGRect r = CGRectMake( 00 , 00 , w , h );
CGContextSaveGState( m_cgContext );
CGContextTranslateCTM( m_cgContext, x , y + h );
CGContextScaleCTM( m_cgContext, 1, -1 );
PlotIconRefInContext( m_cgContext , &r , kAlignNone , kTransformNone ,
NULL , kPlotIconRefNormalFlags , MAC_WXHICON( icon.GetHICON() ) );
CGContextRestoreGState( m_cgContext );
}
void wxMacCoreGraphicsContext::PushState()
{
EnsureIsValid();
CGContextSaveGState( m_cgContext );
}
void wxMacCoreGraphicsContext::PopState()
{
EnsureIsValid();
CGContextRestoreGState( m_cgContext );
}
void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
{
DrawText(str, x, y, 0.0);
}
void wxMacCoreGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
{
if ( m_font.IsNull() )
return;
EnsureIsValid();
OSStatus status = noErr;
ATSUTextLayout atsuLayout;
UniCharCount chars = str.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
#endif
chars = unicharlen / 2;
#else
#if wxUSE_UNICODE
ubuf = (UniChar*) str.wc_str();
#else
wxWCharBuffer wchar = str.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
#endif
#endif
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the rotated text") );
status = ::ATSUSetTransientFontMatching( atsuLayout , true );
wxASSERT_MSG( status == noErr , wxT("couldn't setup transient font matching") );
int iAngle = int( angle * RAD2DEG );
if ( abs(iAngle) > 0 )
{
Fixed atsuAngle = IntToFixed( iAngle );
ATSUAttributeTag atsuTags[] =
{
kATSULineRotationTag ,
};
ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
sizeof( Fixed ) ,
};
ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
&atsuAngle ,
};
status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
atsuTags, atsuSizes, atsuValues );
}
{
ATSUAttributeTag atsuTags[] =
{
kATSUCGContextTag ,
};
ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
sizeof( CGContextRef ) ,
};
ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
{
&m_cgContext ,
};
status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
atsuTags, atsuSizes, atsuValues );
}
ATSUTextMeasurement textBefore, textAfter;
ATSUTextMeasurement ascent, descent;
status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
&textBefore , &textAfter, &ascent , &descent );
wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
Rect rect;
x += (int)(sin(angle) * FixedToInt(ascent));
y += (int)(cos(angle) * FixedToInt(ascent));
status = ::ATSUMeasureTextImage( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
IntToFixed(x) , IntToFixed(y) , &rect );
wxASSERT_MSG( status == noErr , wxT("couldn't measure the rotated text") );
CGContextSaveGState(m_cgContext);
CGContextTranslateCTM(m_cgContext, x, y);
CGContextScaleCTM(m_cgContext, 1, -1);
status = ::ATSUDrawText( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
IntToFixed(0) , IntToFixed(0) );
wxASSERT_MSG( status == noErr , wxT("couldn't draw the rotated text") );
CGContextRestoreGState(m_cgContext);
::ATSUDisposeTextLayout(atsuLayout);
#if SIZEOF_WCHAR_T == 4
free( ubuf );
#endif
}
void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const
{
wxCHECK_RET( !m_font.IsNull(), wxT("wxDC(cg)::DoGetTextExtent - no valid font set") );
OSStatus status = noErr;
ATSUTextLayout atsuLayout;
UniCharCount chars = str.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , str.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = str.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
#endif
chars = unicharlen / 2;
#else
#if wxUSE_UNICODE
ubuf = (UniChar*) str.wc_str();
#else
wxWCharBuffer wchar = str.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
#endif
#endif
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
status = ::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
wxASSERT_MSG( status == noErr , wxT("couldn't create the layout of the text") );
ATSUTextMeasurement textBefore, textAfter;
ATSUTextMeasurement textAscent, textDescent;
status = ::ATSUGetUnjustifiedBounds( atsuLayout, kATSUFromTextBeginning, kATSUToTextEnd,
&textBefore , &textAfter, &textAscent , &textDescent );
if ( height )
*height = FixedToInt(textAscent + textDescent);
if ( descent )
*descent = FixedToInt(textDescent);
if ( externalLeading )
*externalLeading = 0;
if ( width )
*width = FixedToInt(textAfter - textBefore);
::ATSUDisposeTextLayout(atsuLayout);
}
void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
{
widths.Empty();
widths.Add(0, text.length());
if (text.empty())
return;
ATSUTextLayout atsuLayout;
UniCharCount chars = text.length();
UniChar* ubuf = NULL;
#if SIZEOF_WCHAR_T == 4
wxMBConvUTF16 converter;
#if wxUSE_UNICODE
size_t unicharlen = converter.WC2MB( NULL , text.wc_str() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , text.wc_str(), unicharlen + 2 );
#else
const wxWCharBuffer wchar = text.wc_str( wxConvLocal );
size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 );
ubuf = (UniChar*) malloc( unicharlen + 2 );
converter.WC2MB( (char*) ubuf , wchar.data() , unicharlen + 2 );
#endif
chars = unicharlen / 2;
#else
#if wxUSE_UNICODE
ubuf = (UniChar*) text.wc_str();
#else
wxWCharBuffer wchar = text.wc_str( wxConvLocal );
chars = wxWcslen( wchar.data() );
ubuf = (UniChar*) wchar.data();
#endif
#endif
ATSUStyle style = (((wxMacCoreGraphicsFontData*)m_font.GetRefData())->GetATSUStyle());
::ATSUCreateTextLayoutWithTextPtr( (UniCharArrayPtr) ubuf , 0 , chars , chars , 1 ,
&chars , &style , &atsuLayout );
for ( int pos = 0; pos < (int)chars; pos ++ )
{
unsigned long actualNumberOfBounds = 0;
ATSTrapezoid glyphBounds;
// We get a single bound, since the text should only require one. If it requires more, there is an issue
OSStatus result;
result = ATSUGetGlyphBounds( atsuLayout, 0, 0, kATSUFromTextBeginning, pos + 1,
kATSUseDeviceOrigins, 1, &glyphBounds, &actualNumberOfBounds );
if (result != noErr || actualNumberOfBounds != 1 )
return;
widths[pos] = FixedToInt( glyphBounds.upperRight.x - glyphBounds.upperLeft.x );
//unsigned char uch = s[i];
}
::ATSUDisposeTextLayout(atsuLayout);
}
void * wxMacCoreGraphicsContext::GetNativeContext()
{
return m_cgContext;
}
// concatenates this transform with the current transform of this context
void wxMacCoreGraphicsContext::ConcatTransform( const wxGraphicsMatrix& matrix )
{
if ( m_cgContext )
CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
else
m_windowTransform = CGAffineTransformConcat(m_windowTransform, *(CGAffineTransform*) matrix.GetNativeMatrix());
}
// sets the transform of this context
void wxMacCoreGraphicsContext::SetTransform( const wxGraphicsMatrix& matrix )
{
if ( m_cgContext )
{
CGAffineTransform transform = CGContextGetCTM( m_cgContext );
transform = CGAffineTransformInvert( transform ) ;
CGContextConcatCTM( m_cgContext, transform);
CGContextConcatCTM( m_cgContext, *(CGAffineTransform*) matrix.GetNativeMatrix());
}
else
{
m_windowTransform = *(CGAffineTransform*) matrix.GetNativeMatrix();
}
}
// gets the matrix of this context
wxGraphicsMatrix wxMacCoreGraphicsContext::GetTransform() const
{
wxGraphicsMatrix m = CreateMatrix();
*((CGAffineTransform*) m.GetNativeMatrix()) = ( m_cgContext == NULL ? m_windowTransform :
CGContextGetCTM( m_cgContext ));
return m;
}
//
// Renderer
//
//-----------------------------------------------------------------------------
// wxMacCoreGraphicsRenderer declaration
//-----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxMacCoreGraphicsRenderer : public wxGraphicsRenderer
{
public :
wxMacCoreGraphicsRenderer() {}
virtual ~wxMacCoreGraphicsRenderer() {}
// Context
virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
virtual wxGraphicsContext * CreateContext( wxWindow* window );
virtual wxGraphicsContext * CreateMeasuringContext();
// Path
virtual wxGraphicsPath CreatePath();
// Matrix
virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
wxDouble tx=0.0, wxDouble ty=0.0);
virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
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) ;
// 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) ;
// sets the font
virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
private :
DECLARE_DYNAMIC_CLASS_NO_COPY(wxMacCoreGraphicsRenderer)
} ;
//-----------------------------------------------------------------------------
// wxMacCoreGraphicsRenderer implementation
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxMacCoreGraphicsRenderer,wxGraphicsRenderer)
static wxMacCoreGraphicsRenderer gs_MacCoreGraphicsRenderer;
wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
{
return &gs_MacCoreGraphicsRenderer;
}
wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc)
{
return new wxMacCoreGraphicsContext(this,(CGContextRef)dc.GetWindow()->MacGetCGContextRef() );
}
wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )
{
return new wxMacCoreGraphicsContext(this,(CGContextRef)context);
}
wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeWindow( void * window )
{
return new wxMacCoreGraphicsContext(this,(WindowRef)window);
}
wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( wxWindow* window )
{
return new wxMacCoreGraphicsContext(this, window );
}
wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateMeasuringContext()
{
return new wxMacCoreGraphicsContext(this);
}
// Path
wxGraphicsPath wxMacCoreGraphicsRenderer::CreatePath()
{
wxGraphicsPath m;
m.SetRefData( new wxMacCoreGraphicsPathData(this));
return m;
}
// Matrix
wxGraphicsMatrix wxMacCoreGraphicsRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
wxDouble tx, wxDouble ty)
{
wxGraphicsMatrix m;
wxMacCoreGraphicsMatrixData* data = new wxMacCoreGraphicsMatrixData( this );
data->Set( a,b,c,d,tx,ty ) ;
m.SetRefData(data);
return m;
}
wxGraphicsPen wxMacCoreGraphicsRenderer::CreatePen(const wxPen& pen)
{
if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
return wxNullGraphicsPen;
else
{
wxGraphicsPen p;
p.SetRefData(new wxMacCoreGraphicsPenData( this, pen ));
return p;
}
}
wxGraphicsBrush wxMacCoreGraphicsRenderer::CreateBrush(const wxBrush& brush )
{
if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
return wxNullGraphicsBrush;
else
{
wxGraphicsBrush p;
p.SetRefData(new wxMacCoreGraphicsBrushData( this, brush ));
return p;
}
}
// 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 p;
wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
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 p;
wxMacCoreGraphicsBrushData* d = new wxMacCoreGraphicsBrushData( this );
d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
p.SetRefData(d);
return p;
}
// sets the font
wxGraphicsFont wxMacCoreGraphicsRenderer::CreateFont( const wxFont &font , const wxColour &col )
{
if ( font.Ok() )
{
wxGraphicsFont p;
p.SetRefData(new wxMacCoreGraphicsFontData( this , font, col ));
return p;
}
else
return wxNullGraphicsFont;
}
#endif // wxMAC_USE_CORE_GRAPHICS