X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0024ec50861d01a82bca4b2a2a9ad6502d945aa0..00b20999de57eee2567f8e20962d34417840fdd0:/src/msw/graphics.cpp diff --git a/src/msw/graphics.cpp b/src/msw/graphics.cpp index dbed8ff5c2..2d0e3f4eda 100644 --- a/src/msw/graphics.cpp +++ b/src/msw/graphics.cpp @@ -20,28 +20,27 @@ #if wxUSE_GRAPHICS_CONTEXT #ifndef WX_PRECOMP -#include "wx/msw/wrapcdlg.h" -#include "wx/image.h" -#include "wx/window.h" -#include "wx/dc.h" -#include "wx/utils.h" -#include "wx/dialog.h" -#include "wx/app.h" -#include "wx/bitmap.h" -#include "wx/dcmemory.h" -#include "wx/log.h" -#include "wx/icon.h" -#include "wx/dcprint.h" -#include "wx/module.h" + #include "wx/msw/wrapcdlg.h" + #include "wx/image.h" + #include "wx/window.h" + #include "wx/dc.h" + #include "wx/utils.h" + #include "wx/dialog.h" + #include "wx/app.h" + #include "wx/bitmap.h" + #include "wx/dcmemory.h" + #include "wx/log.h" + #include "wx/icon.h" + #include "wx/dcprint.h" + #include "wx/module.h" #endif -#include "wx/graphics.h" - -#include +#include "wx/private/graphics.h" +#include "wx/msw/wrapgdip.h" -using namespace std; +#include "wx/stack.h" -#include "wx/msw/wrapgdip.h" +WX_DECLARE_STACK(GraphicsState, GraphicsStates); //----------------------------------------------------------------------------- // constants @@ -81,7 +80,7 @@ static inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; } #include #endif -class WXDLLIMPEXP_CORE wxGDIPlusPathData : public wxGraphicsPathData +class wxGDIPlusPathData : public wxGraphicsPathData { public : wxGDIPlusPathData(wxGraphicsRenderer* renderer, GraphicsPath* path = NULL); @@ -149,7 +148,7 @@ private : GraphicsPath* m_path; }; -class WXDLLIMPEXP_CORE wxGDIPlusMatrixData : public wxGraphicsMatrixData +class wxGDIPlusMatrixData : public wxGraphicsMatrixData { public : wxGDIPlusMatrixData(wxGraphicsRenderer* renderer, Matrix* matrix = NULL) ; @@ -206,7 +205,7 @@ private: Matrix* m_matrix ; } ; -class WXDLLIMPEXP_CORE wxGDIPlusPenData : public wxGraphicsObjectRefData +class wxGDIPlusPenData : public wxGraphicsObjectRefData { public: wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &pen ); @@ -225,7 +224,7 @@ protected : wxDouble m_width; }; -class WXDLLIMPEXP_CORE wxGDIPlusBrushData : public wxGraphicsObjectRefData +class wxGDIPlusBrushData : public wxGraphicsObjectRefData { public: wxGDIPlusBrushData( wxGraphicsRenderer* renderer ); @@ -247,7 +246,7 @@ private : GraphicsPath* m_brushPath; }; -class WXDLLIMPEXP_CORE wxGDIPlusFontData : public wxGraphicsObjectRefData +class wxGDIPlusFontData : public wxGraphicsObjectRefData { public: wxGDIPlusFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col ); @@ -260,7 +259,7 @@ private : Font* m_font; }; -class WXDLLIMPEXP_CORE wxGDIPlusContext : public wxGraphicsContext +class wxGDIPlusContext : public wxGraphicsContext { public: wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc ); @@ -282,6 +281,12 @@ public: virtual void StrokePath( const wxGraphicsPath& p ); virtual void FillPath( const wxGraphicsPath& p , int fillStyle = wxODDEVEN_RULE ); + // stroke lines connecting each of the points + virtual void StrokeLines( size_t n, const wxPoint2DDouble *points); + + // draws a polygon + virtual void DrawLines( size_t n, const wxPoint2DDouble *points, int fillStyle = wxODDEVEN_RULE ); + virtual void Translate( wxDouble dx , wxDouble dy ); virtual void Scale( wxDouble xScale , wxDouble yScale ); virtual void Rotate( wxDouble angle ); @@ -304,19 +309,40 @@ public: virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, wxDouble *descent, wxDouble *externalLeading ) const; virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const; + virtual bool ShouldOffset() const; private: void Init(); void SetDefaults(); Graphics* m_context; - vector m_stateStack; + GraphicsStates m_stateStack; GraphicsState m_state1; GraphicsState m_state2; DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext) }; +class WXDLLIMPEXP_CORE wxGDIPlusMeasuringContext : public wxGDIPlusContext +{ +public: + wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL) ) + { + } + wxGDIPlusMeasuringContext() + { + } + + virtual ~wxGDIPlusMeasuringContext() + { + ReleaseDC( NULL, m_hdc ); + } + +private: + HDC m_hdc ; + DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusMeasuringContext) +} ; + //----------------------------------------------------------------------------- // wxGDIPlusPen implementation //----------------------------------------------------------------------------- @@ -668,7 +694,7 @@ void wxGDIPlusPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const void wxGDIPlusPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise ) { double sweepAngle = endAngle - startAngle ; - if( abs(sweepAngle) >= 2*M_PI) + if( fabs(sweepAngle) >= 2*M_PI) { sweepAngle = 2 * M_PI; } @@ -846,6 +872,27 @@ void * wxGDIPlusMatrixData::GetNativeMatrix() const //----------------------------------------------------------------------------- IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusContext,wxGraphicsContext) +IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusMeasuringContext,wxGDIPlusContext) + +class wxGDIPlusOffsetHelper +{ +public : + wxGDIPlusOffsetHelper( Graphics* gr , bool offset ) + { + m_gr = gr; + m_offset = offset; + if ( m_offset ) + m_gr->TranslateTransform( 0.5, 0.5 ); + } + ~wxGDIPlusOffsetHelper( ) + { + if ( m_offset ) + m_gr->TranslateTransform( -0.5, -0.5 ); + } +public : + Graphics* m_gr; + bool m_offset; +} ; wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc ) : wxGraphicsContext(renderer) @@ -885,6 +932,8 @@ void wxGDIPlusContext::Init() void wxGDIPlusContext::SetDefaults() { + m_context->SetTextRenderingHint(TextRenderingHintSystemDefault); + m_context->SetPixelOffsetMode(PixelOffsetModeHalf); m_context->SetSmoothingMode(SmoothingModeHighQuality); m_state1 = m_context->Save(); m_state2 = m_context->Save(); @@ -917,10 +966,45 @@ void wxGDIPlusContext::ResetClip() m_context->ResetClip(); } +void wxGDIPlusContext::StrokeLines( size_t n, const wxPoint2DDouble *points) +{ + if ( !m_pen.IsNull() ) + { + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); + Point *cpoints = new Point[n]; + for (size_t i = 0; i < n; i++) + { + cpoints[i].X = (int)(points[i].m_x ); + cpoints[i].Y = (int)(points[i].m_y ); + + } // for (size_t i = 0; i < n; i++) + m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ; + delete[] cpoints; + } +} + +void wxGDIPlusContext::DrawLines( size_t n, const wxPoint2DDouble *points, int WXUNUSED(fillStyle) ) +{ + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); + Point *cpoints = new Point[n]; + for (size_t i = 0; i < n; i++) + { + cpoints[i].X = (int)(points[i].m_x ); + cpoints[i].Y = (int)(points[i].m_y ); + + } // for (int i = 0; i < n; i++) + if ( !m_brush.IsNull() ) + m_context->FillPolygon( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , cpoints , n ) ; + if ( !m_pen.IsNull() ) + m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ; + delete[] cpoints; +} + void wxGDIPlusContext::StrokePath( const wxGraphicsPath& path ) { if ( !m_pen.IsNull() ) { + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); m_context->DrawPath( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , (GraphicsPath*) path.GetNativePath() ); } } @@ -929,6 +1013,7 @@ void wxGDIPlusContext::FillPath( const wxGraphicsPath& path , int fillStyle ) { if ( !m_brush.IsNull() ) { + wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() ); ((GraphicsPath*) path.GetNativePath())->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding); m_context->FillPath( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , (GraphicsPath*) path.GetNativePath()); @@ -953,13 +1038,13 @@ void wxGDIPlusContext::Scale( wxDouble xScale , wxDouble yScale ) void wxGDIPlusContext::PushState() { GraphicsState state = m_context->Save(); - m_stateStack.push_back(state); + m_stateStack.push(state); } void wxGDIPlusContext::PopState() { - GraphicsState state = m_stateStack.back(); - m_stateStack.pop_back(); + GraphicsState state = m_stateStack.top(); + m_stateStack.pop(); m_context->Restore(state); } @@ -1030,7 +1115,7 @@ void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, else { image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE()); - if ( GetPixelFormatSize(image->GetPixelFormat()) == 32 ) + if ( bmp.HasAlpha() && GetPixelFormatSize(image->GetPixelFormat()) == 32 ) { size_t width = image->GetWidth(); size_t height = image->GetHeight(); @@ -1043,7 +1128,7 @@ void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, helper->GetPixelFormat(),&data); image = new Bitmap(data.Width, data.Height, data.Stride, - PixelFormat32bppARGB , (BYTE*) data.Scan0); + PixelFormat32bppPARGB , (BYTE*) data.Scan0); helper->UnlockBits(&data); } @@ -1056,18 +1141,20 @@ void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) { + // the built-in conversion fails when there is alpha in the HICON (eg XP style icons), we can only + // find out by looking at the bitmap data whether there really was alpha in it HICON hIcon = (HICON)icon.GetHICON(); ICONINFO iconInfo ; // IconInfo creates the bitmaps for color and mask, we must dispose of them after use if (!GetIconInfo(hIcon,&iconInfo)) return; - BITMAP iconBmpData ; - GetObject(iconInfo.hbmColor,sizeof(BITMAP),&iconBmpData); Bitmap interim(iconInfo.hbmColor,NULL); Bitmap* image = NULL ; + // if it's not 32 bit, it doesn't have an alpha channel, note that since the conversion doesn't + // work correctly, asking IsAlphaPixelFormat at this point fails as well if( GetPixelFormatSize(interim.GetPixelFormat())!= 32 ) { image = Bitmap::FromHICON(hIcon); @@ -1081,8 +1168,28 @@ void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxD interim.LockBits(&bounds, ImageLockModeRead, interim.GetPixelFormat(),&data); + + bool hasAlpha = false; + for ( size_t y = 0 ; y < height && !hasAlpha ; ++y) + { + for( size_t x = 0 ; x < width && !hasAlpha; ++x) + { + ARGB *dest = (ARGB*)((BYTE*)data.Scan0 + data.Stride*y + x*4); + if ( ( *dest & Color::AlphaMask ) != 0 ) + hasAlpha = true; + } + } + + if ( hasAlpha ) + { image = new Bitmap(data.Width, data.Height, data.Stride, PixelFormat32bppARGB , (BYTE*) data.Scan0); + } + else + { + image = Bitmap::FromHICON(hIcon); + } + interim.UnlockBits(&data); } @@ -1100,8 +1207,7 @@ void wxGDIPlusContext::DrawText( const wxString &str, wxDouble x, wxDouble y ) wxWCharBuffer s = str.wc_str( *wxConvUI ); m_context->DrawString( s , -1 , ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusFont() , - PointF( x , y ) , ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusBrush() ); - // TODO m_backgroundMode == wxSOLID + PointF( x , y ) , StringFormat::GenericTypographic() , ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusBrush() ); } void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, @@ -1123,11 +1229,11 @@ void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDo f->GetSize() / ffamily.GetEmHeight(FontStyleRegular); if ( height ) - *height = rHeight * factorY + 0.5 ; + *height = rHeight * factorY; if ( descent ) - *descent = rDescent * factorY + 0.5 ; + *descent = rDescent * factorY; if ( externalLeading ) - *externalLeading = (rHeight - rAscent - rDescent) * factorY + 0.5 ; + *externalLeading = (rHeight - rAscent - rDescent) * factorY; // measuring empty strings is not guaranteed, so do it by hand if ( str.IsEmpty()) { @@ -1136,18 +1242,14 @@ void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDo } else { - // MeasureString does return a rectangle that is way too large, so it is - // not usable here RectF layoutRect(0,0, 100000.0f, 100000.0f); - StringFormat strFormat; - CharacterRange strRange(0,wcslen(s)); - strFormat.SetMeasurableCharacterRanges(1,&strRange); - Region region ; - m_context->MeasureCharacterRanges(s, -1 , f,layoutRect, &strFormat,1,®ion) ; - RectF bbox ; - region.GetBounds(&bbox,m_context); + StringFormat strFormat( StringFormat::GenericTypographic() ); + strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() ); + + RectF bounds ; + m_context->MeasureString((const wchar_t *) s , wcslen(s) , f, layoutRect, &strFormat, &bounds ) ; if ( width ) - *width = bbox.GetRight()-bbox.GetLeft()+0.5; + *width = bounds.Width; } } @@ -1165,7 +1267,7 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations")); RectF layoutRect(0,0, 100000.0f, 100000.0f); - StringFormat strFormat; + StringFormat strFormat( StringFormat::GenericTypographic() ); CharacterRange* ranges = new CharacterRange[len] ; Region* regions = new Region[len]; @@ -1175,6 +1277,7 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble ranges[i].Length = 1 ; } strFormat.SetMeasurableCharacterRanges(len,ranges); + strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() ); m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,1,regions) ; RectF bbox ; @@ -1185,6 +1288,18 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble } } +bool wxGDIPlusContext::ShouldOffset() const +{ + int penwidth = 0 ; + if ( !m_pen.IsNull() ) + { + penwidth = (int)((wxGDIPlusPenData*)m_pen.GetRefData())->GetWidth(); + if ( penwidth == 0 ) + penwidth = 1; + } + return ( penwidth % 2 ) == 1; +} + void* wxGDIPlusContext::GetNativeContext() { return m_context; @@ -1213,7 +1328,7 @@ wxGraphicsMatrix wxGDIPlusContext::GetTransform() const // wxGDIPlusRenderer declaration //----------------------------------------------------------------------------- -class WXDLLIMPEXP_CORE wxGDIPlusRenderer : public wxGraphicsRenderer +class wxGDIPlusRenderer : public wxGraphicsRenderer { public : wxGDIPlusRenderer() @@ -1273,6 +1388,7 @@ protected : void EnsureIsLoaded(); void Load(); void Unload(); + friend class wxGDIPlusRendererModule; private : bool m_loaded; @@ -1313,27 +1429,31 @@ void wxGDIPlusRenderer::Load() void wxGDIPlusRenderer::Unload() { if ( m_gditoken ) + { GdiplusShutdown(m_gditoken); + m_gditoken = NULL; + } + m_loaded = false; } wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxWindowDC& dc) { EnsureIsLoaded(); - return new wxGDIPlusContext(this,(HDC) dc.GetHDC()); + wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl ); + return new wxGDIPlusContext(this,(HDC) msw->GetHDC()); } wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxMemoryDC& dc) { EnsureIsLoaded(); - return new wxGDIPlusContext(this,(HDC) dc.GetHDC()); + wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl ); + return new wxGDIPlusContext(this,(HDC) msw->GetHDC()); } wxGraphicsContext * wxGDIPlusRenderer::CreateMeasuringContext() { EnsureIsLoaded(); - return NULL; - // TODO use GetDC(NULL) but then we have to release it from the context - //return new wxGDIPlusContext(this,(HDC) dc.GetHDC()); + return new wxGDIPlusMeasuringContext(this); } wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeContext( void * context ) @@ -1445,4 +1565,17 @@ wxGraphicsFont wxGDIPlusRenderer::CreateFont( const wxFont &font , const wxColou return wxNullGraphicsFont; } +// Shutdown GDI+ at app exit, before possible dll unload +class wxGDIPlusRendererModule : public wxModule +{ +public: + virtual bool OnInit() { return true; } + virtual void OnExit() { gs_GDIPlusRenderer.Unload(); } + +private: + DECLARE_DYNAMIC_CLASS(wxGDIPlusRendererModule) +}; + +IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRendererModule, wxModule) + #endif // wxUSE_GRAPHICS_CONTEXT