X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/793132080692efd8ddd90f3e88d292d07256a0a2..6fafab0ea36ba8320e34be700a4dbf2c99aa3ea1:/src/generic/graphicc.cpp diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp index 9635a86bfe..49a50d9e69 100644 --- a/src/generic/graphicc.cpp +++ b/src/generic/graphicc.cpp @@ -33,9 +33,7 @@ #include "wx/dcclient.h" #include "wx/dcmemory.h" #include "wx/dcprint.h" - #ifdef __WXGTK__ - #include "wx/window.h" - #endif + #include "wx/window.h" #endif #include "wx/private/graphics.h" @@ -73,6 +71,10 @@ using namespace std; #include #ifdef __WXMSW__ #include +// Notice that the order is important: cairo-win32.h includes windows.h which +// pollutes the global name space with macros so include our own header which +// #undefines them after it. +#include "wx/msw/private.h" #endif #ifdef __WXGTK__ @@ -81,10 +83,6 @@ using namespace std; #include "wx/gtk/dc.h" #endif -#ifdef __WXMSW__ -#include -#endif - #ifdef __WXMAC__ #include "wx/osx/private.h" #include @@ -282,16 +280,24 @@ class wxCairoFontData : public wxGraphicsObjectRefData { public: wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col ); + wxCairoFontData(wxGraphicsRenderer* renderer, + double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col); ~wxCairoFontData(); - virtual void Apply( wxGraphicsContext* context ); + virtual bool Apply( wxGraphicsContext* context ); #ifdef __WXGTK__ - const PangoFontDescription* GetFont() const { return m_font; } - bool GetUnderlined() const { return m_underlined; } + const wxFont& GetFont() const { return m_wxfont; } #endif private : + void InitColour(const wxColour& col); + void InitFontComponents(const wxString& facename, + cairo_font_slant_t slant, + cairo_font_weight_t weight); + double m_size; - bool m_underlined; double m_red; double m_green; double m_blue; @@ -299,23 +305,37 @@ private : #ifdef __WXMAC__ cairo_font_face_t *m_font; #elif defined(__WXGTK__) - PangoFontDescription* m_font; -#else + wxFont m_wxfont; +#endif + + // These members are used when the font is created from its face name and + // flags (and not from wxFont) and also even when creating it from wxFont + // on the platforms not covered above. + // + // Notice that we can't use cairo_font_face_t instead of storing those, + // even though it would be simpler and need less #ifdefs, because + // cairo_toy_font_face_create() that we'd need to create it is only + // available in Cairo 1.8 and we require just 1.2 currently. If we do drop + // support for < 1.8 versions in the future it would be definitely better + // to use cairo_toy_font_face_create() instead. wxCharBuffer m_fontName; cairo_font_slant_t m_slant; cairo_font_weight_t m_weight; -#endif }; -class wxCairoBitmapData : public wxGraphicsObjectRefData +class wxCairoBitmapData : public wxGraphicsBitmapData { public: wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ); +#if wxUSE_IMAGE + wxCairoBitmapData(wxGraphicsRenderer* renderer, const wxImage& image); +#endif // wxUSE_IMAGE wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ); ~wxCairoBitmapData(); virtual cairo_surface_t* GetCairoSurface() { return m_surface; } virtual cairo_pattern_t* GetCairoPattern() { return m_pattern; } + virtual void* GetNativeBitmap() const { return m_surface; } virtual wxSize GetSize() { return wxSize(m_width, m_height); } #if wxUSE_IMAGE @@ -378,6 +398,7 @@ public: virtual void Clip( const wxRegion ®ion ); #ifdef __WXMSW__ cairo_surface_t* m_mswSurface; + WindowHDC m_mswWindowHDC; #endif // clips drawings to the rect @@ -427,9 +448,9 @@ public: protected: virtual void DoDrawText( const wxString &str, wxDouble x, wxDouble y ); -private: void Init(cairo_t *context); +private: cairo_t* m_context; wxVector m_layerOpacities; @@ -437,6 +458,35 @@ private: wxDECLARE_NO_COPY_CLASS(wxCairoContext); }; +#if wxUSE_IMAGE +// ---------------------------------------------------------------------------- +// wxCairoImageContext: context associated with a wxImage. +// ---------------------------------------------------------------------------- + +class wxCairoImageContext : public wxCairoContext +{ +public: + wxCairoImageContext(wxGraphicsRenderer* renderer, wxImage& image) : + wxCairoContext(renderer), + m_image(image), + m_data(renderer, image) + { + Init(cairo_create(m_data.GetCairoSurface())); + } + + virtual ~wxCairoImageContext() + { + m_image = m_data.ConvertToImage(); + } + +private: + wxImage& m_image; + wxCairoBitmapData m_data; + + wxDECLARE_NO_COPY_CLASS(wxCairoImageContext); +}; +#endif // wxUSE_IMAGE + //----------------------------------------------------------------------------- // wxCairoPenData implementation //----------------------------------------------------------------------------- @@ -774,50 +824,117 @@ void wxCairoBrushData::Init() // wxCairoFontData implementation //----------------------------------------------------------------------------- -wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, - const wxColour& col ) : wxGraphicsObjectRefData(renderer) +void wxCairoFontData::InitColour(const wxColour& col) { m_red = col.Red()/255.0; m_green = col.Green()/255.0; m_blue = col.Blue()/255.0; m_alpha = col.Alpha()/255.0; +} + +void +wxCairoFontData::InitFontComponents(const wxString& facename, + cairo_font_slant_t slant, + cairo_font_weight_t weight) +{ + m_fontName = facename.mb_str(wxConvUTF8); + m_slant = slant; + m_weight = weight; +} + +wxCairoFontData::wxCairoFontData( wxGraphicsRenderer* renderer, const wxFont &font, + const wxColour& col ) + : wxGraphicsObjectRefData(renderer) +#ifdef __WXGTK__ + , m_wxfont(font) +#endif +{ + InitColour(col); + m_size = font.GetPointSize(); - m_underlined = font.GetUnderlined(); #ifdef __WXMAC__ m_font = cairo_quartz_font_face_create_for_cgfont( font.OSXGetCGFont() ); #elif defined(__WXGTK__) - m_font = pango_font_description_copy( font.GetNativeFontInfo()->description ); #else - m_fontName = font.GetFaceName().mb_str(wxConvUTF8); - m_slant = font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC:CAIRO_FONT_SLANT_NORMAL; - m_weight = font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD:CAIRO_FONT_WEIGHT_NORMAL; + InitFontComponents + ( + font.GetFaceName(), + font.GetStyle() == wxFONTSTYLE_ITALIC ? CAIRO_FONT_SLANT_ITALIC + : CAIRO_FONT_SLANT_NORMAL, + font.GetWeight() == wxFONTWEIGHT_BOLD ? CAIRO_FONT_WEIGHT_BOLD + : CAIRO_FONT_WEIGHT_NORMAL + ); +#endif +} + +wxCairoFontData::wxCairoFontData(wxGraphicsRenderer* renderer, + double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col) : + wxGraphicsObjectRefData(renderer) +{ + InitColour(col); + + // Resolution for Cairo image surfaces is 72 DPI meaning that the sizes in + // points and pixels are identical, so we can just pass the size in pixels + // directly to cairo_set_font_size(). + m_size = sizeInPixels; + +#if defined(__WXMAC__) + m_font = NULL; #endif + + // There is no need to set m_underlined under wxGTK in this case, it can + // only be used if m_font != NULL. + + InitFontComponents + ( + facename, + flags & wxFONTFLAG_ITALIC ? CAIRO_FONT_SLANT_ITALIC + : CAIRO_FONT_SLANT_NORMAL, + flags & wxFONTFLAG_BOLD ? CAIRO_FONT_WEIGHT_BOLD + : CAIRO_FONT_WEIGHT_NORMAL + ); } wxCairoFontData::~wxCairoFontData() { #ifdef __WXMAC__ - cairo_font_face_destroy( m_font ); -#elif defined(__WXGTK__) - pango_font_description_free( m_font ); -#else + if ( m_font ) + cairo_font_face_destroy( m_font ); #endif } -void wxCairoFontData::Apply( wxGraphicsContext* context ) +bool wxCairoFontData::Apply( wxGraphicsContext* context ) { cairo_t * ctext = (cairo_t*) context->GetNativeContext(); cairo_set_source_rgba(ctext,m_red,m_green, m_blue,m_alpha); #ifdef __WXGTK__ - // the rest is done using Pango layouts + if (m_wxfont.IsOk()) + { + // Nothing to do, the caller uses Pango layout functions to do + // everything. + return true; + } #elif defined(__WXMAC__) - cairo_set_font_face(ctext, m_font); - cairo_set_font_size(ctext, m_size ); -#else + if ( m_font ) + { + cairo_set_font_face(ctext, m_font); + cairo_set_font_size(ctext, m_size ); + return true; + } +#endif + + // If we get here, we must be on a platform without native font support or + // we're using toy Cairo API even under wxGTK/wxMac. cairo_select_font_face(ctext, m_fontName, m_slant, m_weight ); cairo_set_font_size(ctext, m_size ); -#endif + + // Indicate that we don't use native fonts for the platforms which care + // about this (currently only wxGTK). + return false; } //----------------------------------------------------------------------------- @@ -1132,13 +1249,13 @@ void wxCairoBitmapData::InitSurface(cairo_format_t format, int stride) } wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, cairo_surface_t* bitmap ) : - wxGraphicsObjectRefData( renderer ) + wxGraphicsBitmapData( renderer ) { m_surface = bitmap; m_pattern = cairo_pattern_create_for_surface(m_surface); } -wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsObjectRefData( renderer ) +wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitmap& bmp ) : wxGraphicsBitmapData( renderer ) { wxCHECK_RET( bmp.IsOk(), wxT("Invalid bitmap in wxCairoContext::DrawBitmap")); @@ -1146,7 +1263,7 @@ wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitm // Create a surface object and copy the bitmap pixel data to it. if the // image has alpha (or a mask represented as alpha) then we'll use a // different format and iterator than if it doesn't... - const cairo_format_t bufferFormat = bmp.GetDepth() == 32 + cairo_format_t bufferFormat = bmp.GetDepth() == 32 #ifdef __WXGTK__ || bmp.GetMask() #endif @@ -1155,23 +1272,22 @@ wxCairoBitmapData::wxCairoBitmapData( wxGraphicsRenderer* renderer, const wxBitm int stride = InitBuffer(bmp.GetWidth(), bmp.GetHeight(), bufferFormat); - int bw = m_width; - int bh = m_height; wxBitmap bmpSource = bmp; // we need a non-const instance wxUint32* data = (wxUint32*)m_buffer; if ( bufferFormat == CAIRO_FORMAT_ARGB32 ) { // use the bitmap's alpha - wxAlphaPixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh)); + wxAlphaPixelData + pixData(bmpSource, wxPoint(0, 0), wxSize(m_width, m_height)); wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data.")); wxAlphaPixelData::Iterator p(pixData); - for (int y=0; y(GetGraphicsData()); - - return data ? data->ConvertToImage() : wxNullImage; -} - -#endif // wxUSE_IMAGE - //----------------------------------------------------------------------------- // wxCairoContext implementation //----------------------------------------------------------------------------- @@ -1566,8 +1676,35 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxMemoryDC& m_enableOffset = true; #ifdef __WXMSW__ - m_mswSurface = cairo_win32_surface_create((HDC)dc.GetHDC()); + + HDC hdc = (HDC)dc.GetHDC(); + + HBITMAP bitmap = (HBITMAP)GetCurrentObject(hdc, OBJ_BITMAP); + + BITMAP info; + bool hasBitmap = false; + + // cairo_win32_surface_create creates a 24-bit bitmap, + // so if we have alpha, we need to create a 32-bit surface instead. + if (!GetObject(bitmap, sizeof(info), &info) || info.bmBitsPixel < 32) + m_mswSurface = cairo_win32_surface_create(hdc); + else { + hasBitmap = true; + m_mswSurface = cairo_image_surface_create_for_data((unsigned char*)info.bmBits, + CAIRO_FORMAT_ARGB32, + info.bmWidth, + info.bmHeight, + info.bmWidthBytes); + } + Init( cairo_create(m_mswSurface) ); + // If we've created a image surface, we need to flip the Y axis so that + // all drawing will appear right side up. + if (hasBitmap) { + cairo_matrix_t matrix; + cairo_matrix_init(&matrix, 1.0, 0.0, 0.0, -1.0, 0.0, height); + cairo_set_matrix(m_context, &matrix); + } #endif #ifdef __WXGTK20__ @@ -1633,7 +1770,10 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context ) } wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window) -: wxGraphicsContext(renderer) + : wxGraphicsContext(renderer) +#ifdef __WXMSW__ + , m_mswWindowHDC(GetHwndOf(window)) +#endif { m_enableOffset = true; #ifdef __WXGTK__ @@ -1657,7 +1797,7 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window) #endif #ifdef __WXMSW__ - m_mswSurface = cairo_win32_surface_create((HDC)window->GetHandle()); + m_mswSurface = cairo_win32_surface_create((HDC)m_mswWindowHDC); Init(cairo_create(m_mswSurface)); #endif @@ -1860,30 +2000,25 @@ void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y) if ( !data ) return; - ((wxCairoFontData*)m_font.GetRefData())->Apply(this); - + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply(this) ) + { #ifdef __WXGTK__ - size_t datalen = strlen(data); + PangoLayout *layout = pango_cairo_create_layout (m_context); + const wxFont& font = static_cast(m_font.GetRefData())->GetFont(); + pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description); + pango_layout_set_text(layout, data, data.length()); + font.GTKSetPangoAttrs(layout); - PangoLayout *layout = pango_cairo_create_layout (m_context); - wxCairoFontData* font_data = (wxCairoFontData*) m_font.GetRefData(); - pango_layout_set_font_description( layout, font_data->GetFont()); - pango_layout_set_text(layout, data, datalen); + cairo_move_to(m_context, x, y); + pango_cairo_show_layout (m_context, layout); - if (font_data->GetUnderlined()) - { - PangoAttrList *attrs = pango_attr_list_new(); - PangoAttribute *attr = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE); - pango_attr_list_insert(attrs, attr); - pango_layout_set_attributes(layout, attrs); - pango_attr_list_unref(attrs); - } + g_object_unref (layout); - cairo_move_to(m_context, x, y); - pango_cairo_show_layout (m_context, layout); + // Don't use Cairo text API, we already did everything. + return; +#endif + } - g_object_unref (layout); -#else // Cairo's x,y for drawing text is at the baseline, so we need to adjust // the position we move to by the ascent. cairo_font_extents_t fe; @@ -1891,7 +2026,6 @@ void wxCairoContext::DoDrawText(const wxString& str, wxDouble x, wxDouble y) cairo_move_to(m_context, x, y+fe.ascent); cairo_show_text(m_context, data); -#endif } void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height, @@ -1911,32 +2045,36 @@ void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDoub if ( str.empty()) return; + if ( ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this) ) + { #ifdef __WXGTK__ - int w, h; + int w, h; - PangoLayout *layout = pango_cairo_create_layout (m_context); - pango_layout_set_font_description( layout, ((wxCairoFontData*)m_font.GetRefData())->GetFont()); - const wxCharBuffer data = str.utf8_str(); - if ( !data ) - { + PangoLayout *layout = pango_cairo_create_layout (m_context); + const wxFont& font = static_cast(m_font.GetRefData())->GetFont(); + pango_layout_set_font_description(layout, font.GetNativeFontInfo()->description); + const wxCharBuffer data = str.utf8_str(); + if ( !data ) + { + return; + } + pango_layout_set_text(layout, data, data.length()); + pango_layout_get_pixel_size (layout, &w, &h); + if ( width ) + *width = w; + if ( height ) + *height = h; + if (descent) + { + PangoLayoutIter *iter = pango_layout_get_iter(layout); + int baseline = pango_layout_iter_get_baseline(iter); + pango_layout_iter_free(iter); + *descent = h - PANGO_PIXELS(baseline); + } + g_object_unref (layout); return; +#endif } - pango_layout_set_text( layout, data, strlen(data) ); - pango_layout_get_pixel_size (layout, &w, &h); - if ( width ) - *width = w; - if ( height ) - *height = h; - if (descent) - { - PangoLayoutIter *iter = pango_layout_get_iter(layout); - int baseline = pango_layout_iter_get_baseline(iter); - pango_layout_iter_free(iter); - *descent = h - PANGO_PIXELS(baseline); - } - g_object_unref (layout); -#else - ((wxCairoFontData*)m_font.GetRefData())->Apply((wxCairoContext*)this); if (width) { @@ -1969,7 +2107,6 @@ void wxCairoContext::GetTextExtent( const wxString &str, wxDouble *width, wxDoub if ( externalLeading ) *externalLeading = wxMax(0, fe.height - (fe.ascent + fe.descent)); } -#endif } void wxCairoContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const @@ -2108,6 +2245,9 @@ public : virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ); virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window ); +#if wxUSE_IMAGE + virtual wxGraphicsContext * CreateContextFromImage(wxImage& image); +#endif // wxUSE_IMAGE virtual wxGraphicsContext * CreateContext( wxWindow* window ); @@ -2144,9 +2284,17 @@ public : // sets the font virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ; + virtual wxGraphicsFont CreateFont(double sizeInPixels, + const wxString& facename, + int flags = wxFONTFLAG_DEFAULT, + const wxColour& col = *wxBLACK); // create a native bitmap representation virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ); +#if wxUSE_IMAGE + virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image); + virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp); +#endif // wxUSE_IMAGE // create a graphics bitmap from a native bitmap virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap ); @@ -2215,14 +2363,7 @@ wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc) wxGraphicsContext * wxCairoRenderer::CreateContext( const wxPrinterDC& dc) { ENSURE_LOADED_OR_RETURN(NULL); -#ifdef __WXGTK20__ - const wxDCImpl *impl = dc.GetImpl(); - cairo_t* context = (cairo_t*) impl->GetCairoContext(); - if (context) - return new wxCairoContext(this,dc); - else -#endif - return new wxCairoContext(this,dc); + return new wxCairoContext(this, dc); } #ifdef __WXMSW__ @@ -2257,14 +2398,22 @@ wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeWindow( void * windo #endif } +#if wxUSE_IMAGE +wxGraphicsContext * wxCairoRenderer::CreateContextFromImage(wxImage& image) +{ + return new wxCairoImageContext(this, image); +} +#endif // wxUSE_IMAGE + wxGraphicsContext * wxCairoRenderer::CreateMeasuringContext() { ENSURE_LOADED_OR_RETURN(NULL); #ifdef __WXGTK__ return CreateContextFromNativeWindow(gdk_get_default_root_window()); -#endif +#else return NULL; // TODO +#endif } wxGraphicsContext * wxCairoRenderer::CreateContext( wxWindow* window ) @@ -2350,7 +2499,6 @@ wxCairoRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo, return p; } -// sets the font wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour &col ) { ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont); @@ -2364,6 +2512,19 @@ wxGraphicsFont wxCairoRenderer::CreateFont( const wxFont &font , const wxColour return wxNullGraphicsFont; } +wxGraphicsFont +wxCairoRenderer::CreateFont(double sizeInPixels, + const wxString& facename, + int flags, + const wxColour& col) +{ + ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont); + + wxGraphicsFont font; + font.SetRefData(new wxCairoFontData(this, sizeInPixels, facename, flags, col)); + return font; +} + wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp ) { ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap); @@ -2377,6 +2538,35 @@ wxGraphicsBitmap wxCairoRenderer::CreateBitmap( const wxBitmap& bmp ) return wxNullGraphicsBitmap; } +#if wxUSE_IMAGE + +wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromImage(const wxImage& image) +{ + wxGraphicsBitmap bmp; + + ENSURE_LOADED_OR_RETURN(bmp); + + if ( image.IsOk() ) + { + bmp.SetRefData(new wxCairoBitmapData(this, image)); + } + + return bmp; +} + +wxImage wxCairoRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp) +{ + ENSURE_LOADED_OR_RETURN(wxNullImage); + + const wxCairoBitmapData* const + data = static_cast(bmp.GetGraphicsData()); + + return data ? data->ConvertToImage() : wxNullImage; +} + +#endif // wxUSE_IMAGE + + wxGraphicsBitmap wxCairoRenderer::CreateBitmapFromNativeBitmap( void* bitmap ) { ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);