X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/888dde65f43d5f57e8fb2028b27191cca1741403..7198c3368055d88249a338eb33b21f051f674806:/src/common/dcgraph.cpp diff --git a/src/common/dcgraph.cpp b/src/common/dcgraph.cpp index 4e1fdfed7f..a06cd25382 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: @@ -28,9 +28,16 @@ #include "wx/region.h" #endif -#ifdef __WXMAC__ -#include "wx/mac/private.h" +#include "wx/dcclient.h" + +#ifdef __WXOSX_OR_COCOA__ +#ifdef __WXOSX_IPHONE__ + #include +#else + #include #endif +#endif + //----------------------------------------------------------------------------- // constants //----------------------------------------------------------------------------- @@ -46,28 +53,84 @@ 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 //----------------------------------------------------------------------------- IMPLEMENT_DYNAMIC_CLASS(wxGCDC, wxDC) -wxGCDC::wxGCDC(const wxWindowDC& dc) +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 ) ) { - m_pimpl = new wxGCDCImpl( this, dc ); } +#endif + +#if defined(__WXMSW__) && wxUSE_ENH_METAFILE +wxGCDC::wxGCDC(const wxEnhMetaFileDC& dc) + : wxDC(new wxGCDCImpl(this, dc)) +{ +} +#endif -wxGCDC::wxGCDC( const wxMemoryDC& dc) +wxGCDC::wxGCDC() : + wxDC( new wxGCDCImpl( this ) ) { - m_pimpl = new wxGCDCImpl( this, dc ); } -wxGCDC::wxGCDC() +wxGCDC::~wxGCDC() { - m_pimpl = new wxGCDCImpl( this ); } -wxGraphicsContext* wxGCDC::GetGraphicsContext() +wxGraphicsContext* wxGCDC::GetGraphicsContext() const { if (!m_pimpl) return NULL; wxGCDCImpl *gc_impl = (wxGCDCImpl*) m_pimpl; @@ -110,14 +173,41 @@ wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxWindowDC& dc ) : { Init(); SetGraphicsContext( wxGraphicsContext::Create(dc) ); + m_window = dc.GetWindow(); } wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxMemoryDC& dc ) : wxDCImpl( owner ) +{ + Init(); + wxGraphicsContext* context; +#if wxUSE_CAIRO + wxGraphicsRenderer* renderer = wxGraphicsRenderer::GetCairoRenderer(); + context = renderer->CreateContext(dc); +#else + context = wxGraphicsContext::Create(dc); +#endif + + SetGraphicsContext( context ); +} + +#if wxUSE_PRINTING_ARCHITECTURE +wxGCDCImpl::wxGCDCImpl( wxDC *owner, const wxPrinterDC& dc ) : + wxDCImpl( owner ) { Init(); SetGraphicsContext( wxGraphicsContext::Create(dc) ); } +#endif + +#if defined(__WXMSW__) && wxUSE_ENH_METAFILE +wxGCDCImpl::wxGCDCImpl(wxDC *owner, const wxEnhMetaFileDC& dc) + : wxDCImpl(owner) +{ + Init(); + SetGraphicsContext(wxGraphicsContext::Create(dc)); +} +#endif void wxGCDCImpl::Init() { @@ -130,7 +220,7 @@ void wxGCDCImpl::Init() m_font = *wxNORMAL_FONT; m_brush = *wxWHITE_BRUSH; - m_graphicContext = NULL; + m_graphicContext = wxGraphicsContext::Create(); m_logicalFunctionSupported = true; } @@ -140,23 +230,34 @@ wxGCDCImpl::~wxGCDCImpl() delete m_graphicContext; } -void wxGCDCImpl::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( 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 wxGCDCImpl::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y ) @@ -170,12 +271,12 @@ void wxGCDCImpl::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y ) m_graphicContext->DrawIcon( icon , x, y, w, h ); } -bool wxGCDCImpl::StartDoc( const wxString& WXUNUSED(message) ) +bool wxGCDCImpl::StartDoc( const wxString& WXUNUSED(message) ) { - return false; + return true; } -void wxGCDCImpl::EndDoc() +void wxGCDCImpl::EndDoc() { } @@ -183,15 +284,13 @@ void wxGCDCImpl::StartPage() { } -void wxGCDCImpl::EndPage() +void wxGCDCImpl::EndPage() { } - + void wxGCDCImpl::Flush() { -#ifdef __WXMAC__ - CGContextFlush( (CGContextRef) m_graphicContext->GetNativeContext() ); -#endif + m_graphicContext->Flush(); } void wxGCDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) @@ -217,10 +316,10 @@ void wxGCDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h } } -void wxGCDCImpl::DoSetClippingRegionAsRegion( const wxRegion ®ion ) +void wxGCDCImpl::DoSetDeviceClippingRegion( const wxRegion ®ion ) { // region is in device coordinates - wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoSetClippingRegionAsRegion - invalid DC") ); + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoSetDeviceClippingRegion - invalid DC") ); if (region.Empty()) { @@ -257,11 +356,11 @@ 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 ; 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 ); @@ -297,7 +396,7 @@ void wxGCDCImpl::SetTextBackground( const wxColour &col ) m_textBackgroundColour = col; } -void wxGCDCImpl::SetMapMode( int mode ) +void wxGCDCImpl::SetMapMode( wxMappingMode mode ) { switch (mode) { @@ -326,44 +425,6 @@ void wxGCDCImpl::SetMapMode( int mode ) ComputeScaleAndOrigin(); } -void wxGCDCImpl::SetUserScale( double x, double y ) -{ - // allow negative ? -> no - - m_userScaleX = x; - m_userScaleY = y; - ComputeScaleAndOrigin(); -} - -void wxGCDCImpl::SetLogicalScale( double x, double y ) -{ - // allow negative ? - m_logicalScaleX = x; - m_logicalScaleY = y; - ComputeScaleAndOrigin(); -} - -void wxGCDCImpl::SetLogicalOrigin( wxCoord x, wxCoord y ) -{ - m_logicalOriginX = x * m_signX; // is this still correct ? - m_logicalOriginY = y * m_signY; - ComputeScaleAndOrigin(); -} - -void wxGCDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y ) -{ - m_deviceOriginX = x; - m_deviceOriginY = y; - ComputeScaleAndOrigin(); -} - -void wxGCDCImpl::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) -{ - m_signX = (xLeftRight ? 1 : -1); - m_signY = (yBottomUp ? -1 : 1); - ComputeScaleAndOrigin(); -} - wxSize wxGCDCImpl::GetPPI() const { return wxSize(72, 72); @@ -376,16 +437,17 @@ int wxGCDCImpl::GetDepth() const 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 ); @@ -437,7 +499,7 @@ void wxGCDCImpl::SetBrush( const wxBrush &brush ) m_graphicContext->SetBrush( m_brush ); } } - + void wxGCDCImpl::SetBackground( const wxBrush &brush ) { if (m_backgroundBrush == brush) @@ -448,20 +510,27 @@ void wxGCDCImpl::SetBackground( const wxBrush &brush ) return; } -void wxGCDCImpl::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 wxGCDCImpl::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), - const wxColour& WXUNUSED(col), int WXUNUSED(style)) + const wxColour& WXUNUSED(col), + wxFloodFillStyle WXUNUSED(style)) { return false; } @@ -568,21 +637,19 @@ void wxGCDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h, { wxGraphicsPath path = m_graphicContext->CreatePath(); path.MoveToPoint( 0, 0 ); - path.AddLineToPoint( h / 2.0 * cos(DegToRad(sa)) , h / 2.0 * sin(DegToRad(-sa)) ); - path.AddLineToPoint( h / 2.0 * cos(DegToRad(ea)) , h / 2.0 * sin(DegToRad(-ea)) ); + 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->FillPath( path ); 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 ); + path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea ); + m_graphicContext->DrawPath( path ); } m_graphicContext->PopState(); @@ -625,7 +692,7 @@ void wxGCDCImpl::DoDrawSpline(const wxPointList *points) wxGraphicsPath path = m_graphicContext->CreatePath(); wxPointList::compatibility_iterator node = points->GetFirst(); - if (node == wxPointList::compatibility_iterator()) + if ( !node ) // empty list return; @@ -644,13 +711,13 @@ void wxGCDCImpl::DoDrawSpline(const wxPointList *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 = node->GetData(); @@ -674,8 +741,8 @@ void wxGCDCImpl::DoDrawSpline(const wxPointList *points) #endif // wxUSE_SPLINES void wxGCDCImpl::DoDrawPolygon( int n, wxPoint points[], - wxCoord xoffset, wxCoord yoffset, - int fillStyle ) + wxCoord xoffset, wxCoord yoffset, + wxPolygonFillMode fillStyle ) { wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawPolygon - invalid DC") ); @@ -706,7 +773,7 @@ void wxGCDCImpl::DoDrawPolyPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, - int fillStyle) + wxPolygonFillMode fillStyle) { wxASSERT(n > 1); wxGraphicsPath path = m_graphicContext->CreatePath(); @@ -801,7 +868,8 @@ bool wxGCDCImpl::CanDrawBitmap() const 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, @@ -812,7 +880,7 @@ bool wxGCDCImpl::DoBlit( 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( IsOk(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid DC") ); @@ -820,51 +888,71 @@ bool wxGCDCImpl::DoStretchBlit( if ( logical_func == wxNO_OP ) return true; - else if ( !m_graphicContext->SetLogicalFunction( logical_func ) ) - + + wxCompositionMode mode = TranslateRasterOp(logical_func); + if ( mode == wxCOMPOSITION_INVALID ) { - wxFAIL_MSG( wxT("Blitting is only supported with wxCOPY logical operation.") ); + wxFAIL_MSG( wxT("Blitting is not supported with this logical operation.") ); return false; } - if (xsrcMask == -1 && ysrcMask == -1) + bool retval = true; + + wxCompositionMode formerMode = m_graphicContext->GetCompositionMode(); + if (m_graphicContext->SetCompositionMode(mode)) { - xsrcMask = xsrc; - ysrcMask = ysrc; - } + wxAntialiasMode formerAa = m_graphicContext->GetAntialiasMode(); + if (mode == wxCOMPOSITION_XOR) + { + m_graphicContext->SetAntialiasMode(wxANTIALIAS_NONE); + } - wxRect subrect(source->LogicalToDeviceX(xsrc), - source->LogicalToDeviceY(ysrc), - source->LogicalToDeviceXRel(srcWidth), - source->LogicalToDeviceYRel(srcHeight)); + if (xsrcMask == -1 && ysrcMask == -1) + { + xsrcMask = xsrc; + ysrcMask = ysrc; + } - // 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; + wxRect subrect(source->LogicalToDeviceX(xsrc), + source->LogicalToDeviceY(ysrc), + source->LogicalToDeviceXRel(srcWidth), + source->LogicalToDeviceYRel(srcHeight)); - wxBitmap blit = source->GetAsBitmap( &subrect ); + // 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; - if ( blit.IsOk() ) - { - m_graphicContext->DrawBitmap( blit, xdest, ydest, - dstWidth, dstHeight); - } - else - { - wxFAIL_MSG( wxT("Cannot Blit. Unable to get contents of DC as bitmap.") ); - return false; - } + wxBitmap blit = source->GetAsBitmap( &subrect ); - // reset logical function - m_graphicContext->SetLogicalFunction( m_logicalFunction ); + if ( blit.IsOk() ) + { + if ( !useMask && blit.GetMask() ) + blit.SetMask(NULL); - return true; + m_graphicContext->DrawBitmap( blit, xdest, ydest, + dstWidth, dstHeight); + } + 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 retval; } void wxGCDCImpl::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y, @@ -872,7 +960,7 @@ void wxGCDCImpl::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y, { wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawRotatedText - invalid DC") ); - if ( str.length() == 0 ) + if ( str.empty() ) return; if ( !m_logicalFunctionSupported ) return; @@ -885,9 +973,21 @@ void wxGCDCImpl::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y, void wxGCDCImpl::DoDrawText(const wxString& str, wxCoord x, wxCoord y) { - wxCHECK_RET( IsOk(), 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; + } - if ( str.length() == 0 ) + wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoDrawText - invalid DC") ); + + if ( str.empty() ) return; if ( !m_logicalFunctionSupported ) @@ -910,7 +1010,7 @@ void wxGCDCImpl::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord * wxCoord *descent, wxCoord *externalLeading , const wxFont *theFont ) const { - wxCHECK_RET( IsOk(), wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") ); + wxCHECK_RET( m_graphicContext, wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") ); if ( theFont ) { @@ -938,7 +1038,7 @@ void wxGCDCImpl::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord * bool wxGCDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const { - wxCHECK_MSG( IsOk(), 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() ) @@ -976,15 +1076,23 @@ void wxGCDCImpl::Clear(void) m_graphicContext->SetBrush( m_backgroundBrush ); wxPen p = *wxTRANSPARENT_PEN; m_graphicContext->SetPen( p ); + wxCompositionMode formerMode = m_graphicContext->GetCompositionMode(); + m_graphicContext->SetCompositionMode(wxCOMPOSITION_SOURCE); DoDrawRectangle( 0, 0, 32000 , 32000 ); + m_graphicContext->SetCompositionMode(formerMode); m_graphicContext->SetPen( m_pen ); m_graphicContext->SetBrush( m_brush ); } void wxGCDCImpl::DoGetSize(int *width, int *height) const { - *width = 10000; - *height = 10000; + 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 wxGCDCImpl::DoGradientFillLinear(const wxRect& rect, @@ -1064,4 +1172,21 @@ void wxGCDCImpl::DoDrawCheckMark(wxCoord x, wxCoord y, 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