X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e3b81044ee30ead362ba6e1bf95af13248afe41c..31f125ed00f3391ba78371c7aa0b4919427050d8:/src/common/dcgraph.cpp diff --git a/src/common/dcgraph.cpp b/src/common/dcgraph.cpp index 40ff9d38d9..e80d2375b3 100644 --- a/src/common/dcgraph.cpp +++ b/src/common/dcgraph.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: src/common/graphcmn.cpp +// Name: src/common/dcgraph.cpp // Purpose: graphics context methods common to all platforms // Author: Stefan Csomor // Modified by: @@ -18,13 +18,12 @@ #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 //----------------------------------------------------------------------------- @@ -42,22 +41,112 @@ static inline double DegToRad(double deg) return (deg * M_PI) / 180.0; } +static wxCompositionMode TranslateRasterOp(wxRasterOperationMode function) +{ + switch ( function ) + { + case wxCOPY: // src + // since we are supporting alpha, _OVER is closer to the intention than _SOURCE + // since the latter would overwrite even when alpha is not set to opaque + return wxCOMPOSITION_OVER; + + case wxOR: // src OR dst + return wxCOMPOSITION_ADD; + + case wxNO_OP: // dst + return wxCOMPOSITION_DEST; // ignore the source + + case wxCLEAR: // 0 + return wxCOMPOSITION_CLEAR;// clear dst + + case wxXOR: // src XOR dst + return wxCOMPOSITION_XOR; + + case wxAND: // src AND dst + case wxAND_INVERT: // (NOT src) AND dst + case wxAND_REVERSE:// src AND (NOT dst) + case wxEQUIV: // (NOT src) XOR dst + case wxINVERT: // NOT dst + case wxNAND: // (NOT src) OR (NOT dst) + case wxNOR: // (NOT src) AND (NOT dst) + case wxOR_INVERT: // (NOT src) OR dst + case wxOR_REVERSE: // src OR (NOT dst) + case wxSET: // 1 + case wxSRC_INVERT: // NOT src + break; + } + + return wxCOMPOSITION_INVALID; +} + //----------------------------------------------------------------------------- // wxDC bridge class //----------------------------------------------------------------------------- -#ifdef __WXMAC__ -IMPLEMENT_DYNAMIC_CLASS(wxGCDC, wxDCBase) -#else IMPLEMENT_DYNAMIC_CLASS(wxGCDC, wxDC) + +wxGCDC::wxGCDC(const wxWindowDC& dc) : + wxDC( new wxGCDCImpl( this, dc ) ) +{ +} + +wxGCDC::wxGCDC( const wxMemoryDC& dc) : + wxDC( new wxGCDCImpl( this, dc ) ) +{ +} + +#if wxUSE_PRINTING_ARCHITECTURE +wxGCDC::wxGCDC( const wxPrinterDC& dc) : + wxDC( new wxGCDCImpl( this, dc ) ) +{ +} +#endif + +#if defined(__WXMSW__) && wxUSE_ENH_METAFILE +wxGCDC::wxGCDC(const wxEnhMetaFileDC& dc) + : wxDC(new wxGCDCImpl(this, dc)) +{ +} #endif -wxGCDC::wxGCDC() +wxGCDC::wxGCDC(wxGraphicsContext* context) : + wxDC( new wxGCDCImpl( this ) ) +{ + SetGraphicsContext(context); +} + +wxGCDC::wxGCDC() : + wxDC( new wxGCDCImpl( this ) ) +{ +} + +wxGCDC::~wxGCDC() { - Init(); +} + +wxGraphicsContext* wxGCDC::GetGraphicsContext() const +{ + if (!m_pimpl) return NULL; + wxGCDCImpl *gc_impl = (wxGCDCImpl*) m_pimpl; + return gc_impl->GetGraphicsContext(); } void wxGCDC::SetGraphicsContext( wxGraphicsContext* ctx ) +{ + if (!m_pimpl) return; + wxGCDCImpl *gc_impl = (wxGCDCImpl*) m_pimpl; + gc_impl->SetGraphicsContext( ctx ); +} + +IMPLEMENT_ABSTRACT_CLASS(wxGCDCImpl, wxDCImpl) + +wxGCDCImpl::wxGCDCImpl( wxDC *owner ) : + wxDCImpl( owner ) +{ + Init(wxGraphicsContext::Create()); +} + +void wxGCDCImpl::SetGraphicsContext( wxGraphicsContext* ctx ) { delete m_graphicContext; m_graphicContext = ctx; @@ -73,21 +162,43 @@ void wxGCDC::SetGraphicsContext( wxGraphicsContext* ctx ) } } -wxGCDC::wxGCDC(const wxWindowDC& dc) +wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxWindowDC& dc ) : + wxDCImpl( owner ) { - Init(); - SetGraphicsContext( wxGraphicsContext::Create(dc) ); + Init(wxGraphicsContext::Create(dc)); + m_window = dc.GetWindow(); } -#ifdef __WXMSW__ -wxGCDC::wxGCDC(const wxMemoryDC& dc) +wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxMemoryDC& dc ) : + wxDCImpl( owner ) { - Init(); - SetGraphicsContext( wxGraphicsContext::Create(dc) ); + Init(wxGraphicsContext::Create(dc)); } -#endif -void wxGCDC::Init() +#if wxUSE_PRINTING_ARCHITECTURE +wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxPrinterDC& dc ) : + wxDCImpl( owner ) +{ + Init(wxGraphicsContext::Create(dc)); +} +#endif + +#if defined(__WXMSW__) && wxUSE_ENH_METAFILE +wxGCDCImpl::wxGCDCImpl(wxDC *owner, const wxEnhMetaFileDC& dc) + : wxDCImpl(owner) +{ + Init(wxGraphicsContext::Create(dc)); +} +#endif + +wxGCDCImpl::wxGCDCImpl(wxDC* owner, int) + : wxDCImpl(owner) +{ + // derived class will set a context + Init(NULL); +} + +void wxGCDCImpl::Init(wxGraphicsContext* ctx) { m_ok = false; m_colour = true; @@ -99,38 +210,51 @@ void wxGCDC::Init() m_brush = *wxWHITE_BRUSH; m_graphicContext = NULL; + if (ctx) + SetGraphicsContext(ctx); + m_logicalFunctionSupported = true; } - -wxGCDC::~wxGCDC() +wxGCDCImpl::~wxGCDCImpl() { delete m_graphicContext; } -void wxGCDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool WXUNUSED(useMask) ) +void wxGCDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, + bool useMask ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid DC") ); - wxCHECK_RET( bmp.Ok(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid bitmap") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid DC") ); + wxCHECK_RET( bmp.IsOk(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid bitmap") ); + int w = bmp.GetWidth(); + int h = bmp.GetHeight(); if ( bmp.GetDepth() == 1 ) { m_graphicContext->SetPen(*wxTRANSPARENT_PEN); m_graphicContext->SetBrush( wxBrush( m_textBackgroundColour , wxSOLID ) ); - m_graphicContext->DrawRectangle( x , y , bmp.GetWidth() , bmp.GetHeight() ); + m_graphicContext->DrawRectangle( x, y, w, h ); m_graphicContext->SetBrush( wxBrush( m_textForegroundColour , wxSOLID ) ); - m_graphicContext->DrawBitmap( bmp, x , y , bmp.GetWidth() , bmp.GetHeight() ); + m_graphicContext->DrawBitmap( bmp, x, y, w, h ); m_graphicContext->SetBrush( m_graphicContext->CreateBrush(m_brush)); m_graphicContext->SetPen( m_graphicContext->CreatePen(m_pen)); } - else - m_graphicContext->DrawBitmap( bmp, x , y , bmp.GetWidth() , bmp.GetHeight() ); + else // not a monochrome bitmap, handle it normally + { + // make a copy in case we need to remove its mask, if we don't modify + // it the copy is cheap as bitmaps are reference-counted + wxBitmap bmpCopy(bmp); + if ( !useMask && bmp.GetMask() ) + bmpCopy.SetMask(NULL); + + m_graphicContext->DrawBitmap( bmpCopy, x, y, w, h ); + } } -void wxGCDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y ) +void wxGCDCImpl::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawIcon - invalid DC") ); - wxCHECK_RET( icon.Ok(), wxT("wxGCDC(cg)::DoDrawIcon - invalid icon") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawIcon - invalid DC") ); + wxCHECK_RET( icon.IsOk(), wxT("wxGCDC(cg)::DoDrawIcon - invalid icon") ); wxCoord w = icon.GetWidth(); wxCoord h = icon.GetHeight(); @@ -138,37 +262,45 @@ void wxGCDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y ) m_graphicContext->DrawIcon( icon , x, y, w, h ); } -void wxGCDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) +bool wxGCDCImpl::StartDoc( const wxString& WXUNUSED(message) ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoSetClippingRegion - invalid DC") ); + return true; +} + +void wxGCDCImpl::EndDoc() +{ +} + +void wxGCDCImpl::StartPage() +{ +} + +void wxGCDCImpl::EndPage() +{ +} + +void wxGCDCImpl::Flush() +{ + m_graphicContext->Flush(); +} + +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 wxGCDC::DoSetClippingRegionAsRegion( const wxRegion ®ion ) +void wxGCDCImpl::DoSetDeviceClippingRegion( const wxRegion ®ion ) { // region is in device coordinates - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoSetClippingRegionAsRegion - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoSetDeviceClippingRegion - invalid DC") ); if (region.Empty()) { - DestroyClippingRegion(); + //DestroyClippingRegion(); return; } @@ -197,172 +329,113 @@ void wxGCDC::DoSetClippingRegionAsRegion( const wxRegion ®ion ) } } -void wxGCDC::DestroyClippingRegion() +void wxGCDCImpl::DestroyClippingRegion() { m_graphicContext->ResetClip(); // currently the clip eg of a window extends to the area between the scrollbars - // so we must explicitely make sure it only covers the area we want it to draw + // so we must explicitly make sure it only covers the area we want it to draw int width, height ; - GetSize( &width , &height ) ; - m_graphicContext->Clip( DeviceToLogicalX(0) , DeviceToLogicalY(0) , width, height ); - + GetOwner()->GetSize( &width , &height ) ; + m_graphicContext->Clip( DeviceToLogicalX(0) , DeviceToLogicalY(0) , DeviceToLogicalXRel(width), DeviceToLogicalYRel(height) ); + m_graphicContext->SetPen( m_pen ); m_graphicContext->SetBrush( m_brush ); m_clipping = false; } -void wxGCDC::DoGetSizeMM( int* width, int* height ) const +void wxGCDCImpl::DoGetSizeMM( int* width, int* height ) const { int w = 0, h = 0; - GetSize( &w, &h ); + GetOwner()->GetSize( &w, &h ); if (width) *width = long( double(w) / (m_scaleX * m_mm_to_pix_x) ); if (height) *height = long( double(h) / (m_scaleY * m_mm_to_pix_y) ); } -void wxGCDC::SetTextForeground( const wxColour &col ) +void wxGCDCImpl::SetTextForeground( const wxColour &col ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::SetTextForeground - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::SetTextForeground - invalid DC") ); - if ( col != m_textForegroundColour ) + // don't set m_textForegroundColour to an invalid colour as we'd crash + // later then (we use m_textForegroundColour.GetColor() without checking + // in a few places) + if ( col.IsOk() ) { m_textForegroundColour = col; m_graphicContext->SetFont( m_font, m_textForegroundColour ); } } -void wxGCDC::SetTextBackground( const wxColour &col ) +void wxGCDCImpl::SetTextBackground( const wxColour &col ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::SetTextBackground - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::SetTextBackground - invalid DC") ); m_textBackgroundColour = col; } -void wxGCDC::SetMapMode( int mode ) -{ - switch (mode) - { - case wxMM_TWIPS: - SetLogicalScale( twips2mm * m_mm_to_pix_x, twips2mm * m_mm_to_pix_y ); - break; - - case wxMM_POINTS: - SetLogicalScale( pt2mm * m_mm_to_pix_x, pt2mm * m_mm_to_pix_y ); - break; - - case wxMM_METRIC: - SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y ); - break; - - case wxMM_LOMETRIC: - SetLogicalScale( m_mm_to_pix_x / 10.0, m_mm_to_pix_y / 10.0 ); - break; - - case wxMM_TEXT: - default: - SetLogicalScale( 1.0, 1.0 ); - break; - } - - ComputeScaleAndOrigin(); -} - -void wxGCDC::SetUserScale( double x, double y ) -{ - // allow negative ? -> no - - m_userScaleX = x; - m_userScaleY = y; - ComputeScaleAndOrigin(); -} - -void wxGCDC::SetLogicalScale( double x, double y ) -{ - // allow negative ? - m_logicalScaleX = x; - m_logicalScaleY = y; - ComputeScaleAndOrigin(); -} - -void wxGCDC::SetLogicalOrigin( wxCoord x, wxCoord y ) -{ - m_logicalOriginX = x * m_signX; // is this still correct ? - m_logicalOriginY = y * m_signY; - ComputeScaleAndOrigin(); -} - -void wxGCDC::SetDeviceOrigin( wxCoord x, wxCoord y ) -{ - m_deviceOriginX = x; - m_deviceOriginY = y; - ComputeScaleAndOrigin(); -} - -void wxGCDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) -{ - m_signX = (xLeftRight ? 1 : -1); - m_signY = (yBottomUp ? -1 : 1); - ComputeScaleAndOrigin(); -} - -wxSize wxGCDC::GetPPI() const +wxSize wxGCDCImpl::GetPPI() const { return wxSize(72, 72); } -int wxGCDC::GetDepth() const +int wxGCDCImpl::GetDepth() const { return 32; } -void wxGCDC::ComputeScaleAndOrigin() +void wxGCDCImpl::ComputeScaleAndOrigin() { - m_scaleX = m_logicalScaleX * m_userScaleX; - m_scaleY = m_logicalScaleY * m_userScaleY; + wxDCImpl::ComputeScaleAndOrigin(); if ( m_graphicContext ) { m_matrixCurrent = m_graphicContext->CreateMatrix(); - m_matrixCurrent.Translate( m_deviceOriginX, m_deviceOriginY ); - m_matrixCurrent.Scale( m_scaleX, m_scaleY ); + // the logical origin sets the origin to have new coordinates - m_matrixCurrent.Translate( -m_logicalOriginX, -m_logicalOriginY ); + m_matrixCurrent.Translate( m_deviceOriginX - m_logicalOriginX * m_signX * m_scaleX, + m_deviceOriginY-m_logicalOriginY * m_signY * m_scaleY); + + m_matrixCurrent.Scale( m_scaleX * m_signX, m_scaleY * m_signY ); m_graphicContext->SetTransform( m_matrixOriginal ); m_graphicContext->ConcatTransform( m_matrixCurrent ); } } -void wxGCDC::SetPalette( const wxPalette& WXUNUSED(palette) ) +void* wxGCDCImpl::GetHandle() const +{ + void* cgctx = NULL; + wxGraphicsContext* gc = GetGraphicsContext(); + if (gc) { + cgctx = gc->GetNativeContext(); + } + return cgctx; +} + +void wxGCDCImpl::SetPalette( const wxPalette& WXUNUSED(palette) ) { } -void wxGCDC::SetBackgroundMode( int mode ) +void wxGCDCImpl::SetBackgroundMode( int mode ) { m_backgroundMode = mode; } -void wxGCDC::SetFont( const wxFont &font ) +void wxGCDCImpl::SetFont( const wxFont &font ) { m_font = font; if ( m_graphicContext ) { - wxFont f = font; - if ( f.Ok() ) - f.SetPointSize( /*LogicalToDeviceYRel*/(font.GetPointSize())); - m_graphicContext->SetFont( f, m_textForegroundColour ); + m_graphicContext->SetFont(font, m_textForegroundColour); } } -void wxGCDC::SetPen( const wxPen &pen ) +void wxGCDCImpl::SetPen( const wxPen &pen ) { - if ( m_pen == pen ) - return; - m_pen = pen; if ( m_graphicContext ) { @@ -370,55 +443,53 @@ void wxGCDC::SetPen( const wxPen &pen ) } } -void wxGCDC::SetBrush( const wxBrush &brush ) +void wxGCDCImpl::SetBrush( const wxBrush &brush ) { - if (m_brush == brush) - return; - m_brush = brush; if ( m_graphicContext ) { m_graphicContext->SetBrush( m_brush ); } } - -void wxGCDC::SetBackground( const wxBrush &brush ) -{ - if (m_backgroundBrush == brush) - return; +void wxGCDCImpl::SetBackground( const wxBrush &brush ) +{ m_backgroundBrush = brush; - if (!m_backgroundBrush.Ok()) + if (!m_backgroundBrush.IsOk()) return; } -void wxGCDC::SetLogicalFunction( int function ) +void wxGCDCImpl::SetLogicalFunction( wxRasterOperationMode function ) { - if (m_logicalFunction == function) - return; - m_logicalFunction = function; - if ( m_graphicContext->SetLogicalFunction( function ) ) - m_logicalFunctionSupported=true; + + wxCompositionMode mode = TranslateRasterOp( function ); + m_logicalFunctionSupported = mode != wxCOMPOSITION_INVALID; + if (m_logicalFunctionSupported) + m_logicalFunctionSupported = m_graphicContext->SetCompositionMode(mode); + + if ( function == wxXOR ) + m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE); else - m_logicalFunctionSupported=false; + m_graphicContext->SetAntialiasMode(wxANTIALIAS_DEFAULT); } -bool wxGCDC::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), - const wxColour& WXUNUSED(col), int WXUNUSED(style)) +bool wxGCDCImpl::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), + const wxColour& WXUNUSED(col), + wxFloodFillStyle WXUNUSED(style)) { return false; } -bool wxGCDC::DoGetPixel( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour *WXUNUSED(col) ) const +bool wxGCDCImpl::DoGetPixel( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour *WXUNUSED(col) ) const { // wxCHECK_MSG( 0 , false, wxT("wxGCDC(cg)::DoGetPixel - not implemented") ); return false; } -void wxGCDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 ) +void wxGCDCImpl::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawLine - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawLine - invalid DC") ); if ( !m_logicalFunctionSupported ) return; @@ -429,16 +500,16 @@ void wxGCDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 ) CalcBoundingBox(x2, y2); } -void wxGCDC::DoCrossHair( wxCoord x, wxCoord y ) +void wxGCDCImpl::DoCrossHair( wxCoord x, wxCoord y ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoCrossHair - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoCrossHair - invalid DC") ); if ( !m_logicalFunctionSupported ) return; int w = 0, h = 0; - GetSize( &w, &h ); + GetOwner()->GetSize( &w, &h ); m_graphicContext->StrokeLine(0,y,w,y); m_graphicContext->StrokeLine(x,0,x,h); @@ -447,11 +518,11 @@ void wxGCDC::DoCrossHair( wxCoord x, wxCoord y ) CalcBoundingBox(0+w, 0+h); } -void wxGCDC::DoDrawArc( wxCoord x1, wxCoord y1, +void wxGCDCImpl::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawArc - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawArc - invalid DC") ); if ( !m_logicalFunctionSupported ) return; @@ -493,43 +564,54 @@ void wxGCDC::DoDrawArc( wxCoord x1, wxCoord y1, m_graphicContext->DrawPath(path); } -void wxGCDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h, +void wxGCDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawEllipticArc - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawEllipticArc - invalid DC") ); if ( !m_logicalFunctionSupported ) return; - bool fill = m_brush.GetStyle() != wxTRANSPARENT; - - wxGraphicsPath path = m_graphicContext->CreatePath(); m_graphicContext->PushState(); - m_graphicContext->Translate(x+w/2,y+h/2); + m_graphicContext->Translate(x+w/2.0,y+h/2.0); wxDouble factor = ((wxDouble) w) / h; m_graphicContext->Scale( factor , 1.0); - if ( fill && (sa!=ea) ) - path.MoveToPoint(0,0); + // since these angles (ea,sa) are measured counter-clockwise, we invert them to // get clockwise angles - path.AddArc( 0, 0, h/2 , DegToRad(-sa) , DegToRad(-ea), sa > ea ); - if ( fill && (sa!=ea) ) - path.AddLineToPoint(0,0); - m_graphicContext->DrawPath( path ); + if ( m_brush.GetStyle() != wxTRANSPARENT ) + { + wxGraphicsPath path = m_graphicContext->CreatePath(); + path.MoveToPoint( 0, 0 ); + path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea ); + path.AddLineToPoint( 0, 0 ); + m_graphicContext->FillPath( path ); + + path = m_graphicContext->CreatePath(); + path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea ); + m_graphicContext->StrokePath( path ); + } + else + { + wxGraphicsPath path = m_graphicContext->CreatePath(); + path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea ); + m_graphicContext->DrawPath( path ); + } + m_graphicContext->PopState(); } -void wxGCDC::DoDrawPoint( wxCoord x, wxCoord y ) +void wxGCDCImpl::DoDrawPoint( wxCoord x, wxCoord y ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawPoint - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawPoint - invalid DC") ); DoDrawLine( x , y , x + 1 , y + 1 ); } -void wxGCDC::DoDrawLines(int n, wxPoint points[], +void wxGCDCImpl::DoDrawLines(int n, const wxPoint points[], wxCoord xoffset, wxCoord yoffset) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawLines - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawLines - invalid DC") ); if ( !m_logicalFunctionSupported ) return; @@ -546,27 +628,27 @@ void wxGCDC::DoDrawLines(int n, wxPoint points[], } #if wxUSE_SPLINES -void wxGCDC::DoDrawSpline(wxList *points) +void wxGCDCImpl::DoDrawSpline(const wxPointList *points) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawSpline - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawSpline - invalid DC") ); if ( !m_logicalFunctionSupported ) return; wxGraphicsPath path = m_graphicContext->CreatePath(); - wxList::compatibility_iterator node = points->GetFirst(); - if (node == wxList::compatibility_iterator()) + wxPointList::compatibility_iterator node = points->GetFirst(); + if ( !node ) // empty list return; - wxPoint *p = (wxPoint *)node->GetData(); + const wxPoint *p = node->GetData(); wxCoord x1 = p->x; wxCoord y1 = p->y; node = node->GetNext(); - p = (wxPoint *)node->GetData(); + p = node->GetData(); wxCoord x2 = p->x; wxCoord y2 = p->y; @@ -575,16 +657,16 @@ void wxGCDC::DoDrawSpline(wxList *points) path.MoveToPoint( x1 , y1 ); path.AddLineToPoint( cx1 , cy1 ); -#if !wxUSE_STL +#if !wxUSE_STD_CONTAINERS while ((node = node->GetNext()) != NULL) #else while ((node = node->GetNext())) -#endif // !wxUSE_STL +#endif // !wxUSE_STD_CONTAINERS { - p = (wxPoint *)node->GetData(); + p = node->GetData(); x1 = x2; y1 = y2; x2 = p->x; @@ -604,11 +686,11 @@ void wxGCDC::DoDrawSpline(wxList *points) } #endif // wxUSE_SPLINES -void wxGCDC::DoDrawPolygon( int n, wxPoint points[], - wxCoord xoffset, wxCoord yoffset, - int fillStyle ) +void wxGCDCImpl::DoDrawPolygon( int n, const wxPoint points[], + wxCoord xoffset, wxCoord yoffset, + wxPolygonFillMode fillStyle ) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawPolygon - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawPolygon - invalid DC") ); if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) ) return; @@ -632,12 +714,12 @@ void wxGCDC::DoDrawPolygon( int n, wxPoint points[], delete[] pointsD; } -void wxGCDC::DoDrawPolyPolygon(int n, - int count[], - wxPoint points[], +void wxGCDCImpl::DoDrawPolyPolygon(int n, + const int count[], + const wxPoint points[], wxCoord xoffset, wxCoord yoffset, - int fillStyle) + wxPolygonFillMode fillStyle) { wxASSERT(n > 1); wxGraphicsPath path = m_graphicContext->CreatePath(); @@ -661,9 +743,9 @@ void wxGCDC::DoDrawPolyPolygon(int n, m_graphicContext->DrawPath( path , fillStyle); } -void wxGCDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h) +void wxGCDCImpl::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRectangle - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRectangle - invalid DC") ); if ( !m_logicalFunctionSupported ) return; @@ -682,11 +764,11 @@ void wxGCDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h) m_graphicContext->DrawRectangle(x,y,w,h); } -void wxGCDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, +void wxGCDCImpl::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double radius) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRoundedRectangle - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRoundedRectangle - invalid DC") ); if ( !m_logicalFunctionSupported ) return; @@ -698,27 +780,42 @@ void wxGCDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, if (w == 0 || h == 0) return; + if ( m_graphicContext->ShouldOffset() ) + { + // if we are offsetting the entire rectangle is moved 0.5, so the + // border line gets off by 1 + w -= 1; + h -= 1; + } m_graphicContext->DrawRoundedRectangle( x,y,w,h,radius); } -void wxGCDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord w, wxCoord h) +void wxGCDCImpl::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord w, wxCoord h) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawEllipse - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawEllipse - invalid DC") ); if ( !m_logicalFunctionSupported ) return; + if ( m_graphicContext->ShouldOffset() ) + { + // if we are offsetting the entire rectangle is moved 0.5, so the + // border line gets off by 1 + w -= 1; + h -= 1; + } m_graphicContext->DrawEllipse(x,y,w,h); } -bool wxGCDC::CanDrawBitmap() const +bool wxGCDCImpl::CanDrawBitmap() const { return true; } -bool wxGCDC::DoBlit( +bool wxGCDCImpl::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, - wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool useMask, + wxDC *source, wxCoord xsrc, wxCoord ysrc, + wxRasterOperationMode logical_func , bool useMask, wxCoord xsrcMask, wxCoord ysrcMask ) { return DoStretchBlit( xdest, ydest, width, height, @@ -726,66 +823,98 @@ bool wxGCDC::DoBlit( xsrcMask,ysrcMask ); } -bool wxGCDC::DoStretchBlit( +bool wxGCDCImpl::DoStretchBlit( wxCoord xdest, wxCoord ydest, wxCoord dstWidth, wxCoord dstHeight, wxDC *source, wxCoord xsrc, wxCoord ysrc, wxCoord srcWidth, wxCoord srcHeight, - int logical_func , bool WXUNUSED(useMask), + wxRasterOperationMode logical_func , bool useMask, wxCoord xsrcMask, wxCoord ysrcMask ) { - wxCHECK_MSG( Ok(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid DC") ); - wxCHECK_MSG( source->Ok(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid source DC") ); + wxCHECK_MSG( IsOk(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid DC") ); + wxCHECK_MSG( source->IsOk(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid source DC") ); if ( logical_func == wxNO_OP ) return true; - else if ( logical_func != wxCOPY ) - { - wxFAIL_MSG( wxT("Blitting is only supported with wxCOPY logical operation.") ); - return false; - } - if (xsrcMask == -1 && ysrcMask == -1) + wxCompositionMode mode = TranslateRasterOp(logical_func); + if ( mode == wxCOMPOSITION_INVALID ) { - xsrcMask = xsrc; - ysrcMask = ysrc; + wxFAIL_MSG( wxT("Blitting is not supported with this logical operation.") ); + return false; } wxRect subrect(source->LogicalToDeviceX(xsrc), source->LogicalToDeviceY(ysrc), source->LogicalToDeviceXRel(srcWidth), source->LogicalToDeviceYRel(srcHeight)); + const wxRect subrectOrig = subrect; + // clip the subrect down to the size of the source DC + wxRect clip; + source->GetSize(&clip.width, &clip.height); + subrect.Intersect(clip); + if (subrect.width == 0) + return true; - // if needed clip the subrect down to the size of the source DC - wxCoord sw, sh; - source->GetSize(&sw, &sh); - sw = source->LogicalToDeviceXRel(sw); - sh = source->LogicalToDeviceYRel(sh); - if (subrect.x + subrect.width > sw) - subrect.width = sw - subrect.x; - if (subrect.y + subrect.height > sh) - subrect.height = sh - subrect.y; - - wxBitmap blit = source->GetAsBitmap( &subrect ); + bool retval = true; - if ( blit.Ok() ) - { - m_graphicContext->DrawBitmap( blit, xdest, ydest, - dstWidth, dstHeight); - } - else + wxCompositionMode formerMode = m_graphicContext->GetCompositionMode(); + if (m_graphicContext->SetCompositionMode(mode)) { - wxFAIL_MSG( wxT("Cannot Blit. Unable to get contents of DC as bitmap.") ); - return false; + wxAntialiasMode formerAa = m_graphicContext->GetAntialiasMode(); + if (mode == wxCOMPOSITION_XOR) + { + m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE); + } + + if (xsrcMask == -1 && ysrcMask == -1) + { + xsrcMask = xsrc; + ysrcMask = ysrc; + } + + wxBitmap blit = source->GetAsBitmap( &subrect ); + + if ( blit.IsOk() ) + { + if ( !useMask && blit.GetMask() ) + blit.SetMask(NULL); + + double x = xdest; + double y = ydest; + double w = dstWidth; + double h = dstHeight; + // adjust dest rect if source rect is clipped + if (subrect.width != subrectOrig.width || subrect.height != subrectOrig.height) + { + x += (subrect.x - subrectOrig.x) / double(subrectOrig.width) * dstWidth; + y += (subrect.y - subrectOrig.y) / double(subrectOrig.height) * dstHeight; + w *= double(subrect.width) / subrectOrig.width; + h *= double(subrect.height) / subrectOrig.height; + } + m_graphicContext->DrawBitmap(blit, x, y, w, h); + } + else + { + wxFAIL_MSG( wxT("Cannot Blit. Unable to get contents of DC as bitmap.") ); + retval = false; + } + + if (mode == wxCOMPOSITION_XOR) + { + m_graphicContext->SetAntialiasMode(formerAa); + } } + // reset composition + m_graphicContext->SetCompositionMode(formerMode); - return true; + return retval; } -void wxGCDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y, +void wxGCDCImpl::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y, double angle) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") ); - if ( str.length() == 0 ) + if ( str.empty() ) return; if ( !m_logicalFunctionSupported ) return; @@ -796,11 +925,23 @@ void wxGCDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y, m_graphicContext->DrawText( str, x ,y , DegToRad(angle ), m_graphicContext->CreateBrush( wxBrush(m_textBackgroundColour,wxSOLID) ) ); } -void wxGCDC::DoDrawText(const wxString& str, wxCoord x, wxCoord y) +void wxGCDCImpl::DoDrawText(const wxString& str, wxCoord x, wxCoord y) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") ); + // For compatibility with other ports (notably wxGTK) and because it's + // genuinely useful, we allow passing multiline strings to DrawText(). + // However there is no native OSX function to draw them directly so we + // instead reuse the generic DrawLabel() method to render them. Of course, + // DrawLabel() itself will call back to us but with single line strings + // only so there won't be any infinite recursion here. + if ( str.find('\n') != wxString::npos ) + { + GetOwner()->DrawLabel(str, wxRect(x, y, 0, 0)); + return; + } + + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawText - invalid DC") ); - if ( str.length() == 0 ) + if ( str.empty() ) return; if ( !m_logicalFunctionSupported ) @@ -812,18 +953,18 @@ void wxGCDC::DoDrawText(const wxString& str, wxCoord x, wxCoord y) m_graphicContext->DrawText( str, x ,y , m_graphicContext->CreateBrush( wxBrush(m_textBackgroundColour,wxSOLID) ) ); } -bool wxGCDC::CanGetTextExtent() const +bool wxGCDCImpl::CanGetTextExtent() const { - wxCHECK_MSG( Ok(), false, wxT("wxGCDC(cg)::CanGetTextExtent - invalid DC") ); + wxCHECK_MSG( IsOk(), false, wxT("wxGCDC(cg)::CanGetTextExtent - invalid DC") ); return true; } -void wxGCDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height, +void wxGCDCImpl::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height, wxCoord *descent, wxCoord *externalLeading , - wxFont *theFont ) const + const wxFont *theFont ) const { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") ); + wxCHECK_RET( m_graphicContext, wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") ); if ( theFont ) { @@ -835,13 +976,13 @@ void wxGCDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *heig m_graphicContext->GetTextExtent( str, &w, &h, &d, &e ); if ( height ) - *height = (wxCoord)h; + *height = (wxCoord)(h+0.5); if ( descent ) - *descent = (wxCoord)d; + *descent = (wxCoord)(d+0.5); if ( externalLeading ) - *externalLeading = (wxCoord)e; + *externalLeading = (wxCoord)(e+0.5); if ( width ) - *width = (wxCoord)w; + *width = (wxCoord)(w+0.5); if ( theFont ) { @@ -849,9 +990,9 @@ void wxGCDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *heig } } -bool wxGCDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const +bool wxGCDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const { - wxCHECK_MSG( Ok(), false, wxT("wxGCDC(cg)::DoGetPartialTextExtents - invalid DC") ); + wxCHECK_MSG( m_graphicContext, false, wxT("wxGCDC(cg)::DoGetPartialTextExtents - invalid DC") ); widths.Clear(); widths.Add(0,text.Length()); if ( text.IsEmpty() ) @@ -866,7 +1007,7 @@ bool wxGCDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) c return true; } -wxCoord wxGCDC::GetCharWidth(void) const +wxCoord wxGCDCImpl::GetCharWidth(void) const { wxCoord width; DoGetTextExtent( wxT("g") , &width , NULL , NULL , NULL , NULL ); @@ -874,7 +1015,7 @@ wxCoord wxGCDC::GetCharWidth(void) const return width; } -wxCoord wxGCDC::GetCharHeight(void) const +wxCoord wxGCDCImpl::GetCharHeight(void) const { wxCoord height; DoGetTextExtent( wxT("g") , NULL , &height , NULL , NULL , NULL ); @@ -882,25 +1023,36 @@ wxCoord wxGCDC::GetCharHeight(void) const return height; } -void wxGCDC::Clear(void) +void wxGCDCImpl::Clear(void) { - wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::Clear - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::Clear - invalid DC") ); // TODO better implementation / incorporate size info into wxGCDC or context m_graphicContext->SetBrush( m_backgroundBrush ); wxPen p = *wxTRANSPARENT_PEN; m_graphicContext->SetPen( p ); - DoDrawRectangle( 0, 0, 32000 , 32000 ); + wxCompositionMode formerMode = m_graphicContext->GetCompositionMode(); + m_graphicContext->SetCompositionMode(wxCOMPOSITION_SOURCE); + // 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 ); } -void wxGCDC::DoGetSize(int *width, int *height) const +void wxGCDCImpl::DoGetSize(int *width, int *height) const { - *width = 1000; - *height = 1000; + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoGetSize - invalid DC") ); + wxDouble w,h; + m_graphicContext->GetSize( &w, &h ); + if ( height ) + *height = (int) (h+0.5); + if ( width ) + *width = (int) (w+0.5); } -void wxGCDC::DoGradientFillLinear(const wxRect& rect, +void wxGCDCImpl::DoGradientFillLinear(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, wxDirection nDirection ) @@ -941,9 +1093,10 @@ void wxGCDC::DoGradientFillLinear(const wxRect& rect, m_graphicContext->SetPen(*wxTRANSPARENT_PEN); m_graphicContext->DrawRectangle(rect.x,rect.y,rect.width,rect.height); m_graphicContext->SetPen(m_pen); + m_graphicContext->SetBrush(m_brush); } -void wxGCDC::DoGradientFillConcentric(const wxRect& rect, +void wxGCDCImpl::DoGradientFillConcentric(const wxRect& rect, const wxColour& initialColour, const wxColour& destColour, const wxPoint& circleCenter) @@ -969,12 +1122,30 @@ void wxGCDC::DoGradientFillConcentric(const wxRect& rect, m_graphicContext->DrawRectangle(rect.x,rect.y,rect.width,rect.height); m_graphicContext->SetPen(m_pen); + m_graphicContext->SetBrush(m_brush); } -void wxGCDC::DoDrawCheckMark(wxCoord x, wxCoord y, +void wxGCDCImpl::DoDrawCheckMark(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { - wxDCBase::DoDrawCheckMark(x,y,width,height); + wxDCImpl::DoDrawCheckMark(x,y,width,height); +} + +#ifdef __WXMSW__ +wxRect wxGCDCImpl::MSWApplyGDIPlusTransform(const wxRect& r) const +{ + wxGraphicsContext* const gc = GetGraphicsContext(); + wxCHECK_MSG( gc, r, wxT("Invalid wxGCDC") ); + + double x = 0, + y = 0; + gc->GetTransform().TransformPoint(&x, &y); + + wxRect rect(r); + rect.Offset(x, y); + + return rect; } +#endif // __WXMSW__ #endif // wxUSE_GRAPHICS_CONTEXT