struct TEXT_WIDGET_HANDLE text_widget_init ( float x_mm, float y_mm, float width_mm, float height_mm, float dpmm_x, float dpmm_y ) { struct TEXT_WIDGET_HANDLE handle; handle.d = malloc( sizeof( struct TEXT_WIDGET_PRIVATE ) ); handle.d->x_mm = x_mm; handle.d->y_mm = y_mm; handle.d->dpmm_x = dpmm_x; handle.d->dpmm_y = dpmm_y; handle.d->font_map = pango_ft2_font_map_new(); // Note: FreeType works in DPI. pango_ft2_font_map_set_resolution( (PangoFT2FontMap*)handle.d->font_map, dpmm_x * 25.4, dpmm_y * 25.4 ); handle.d->context = pango_font_map_create_context( handle.d->font_map ); handle.d->layout = pango_layout_new( handle.d->context ); // Pango works in Pango Units. Not exactly clear how the resolution of // the font and the size of the rendering box fit together. int width = pango_units_from_double( dpmm_x * width_mm ); int height = pango_units_from_double( dpmm_y * height_mm ); pango_layout_set_width( handle.d->layout, width ); pango_layout_set_height( handle.d->layout, height ); handle.d->foreground = vgCreatePaint(); vgSetParameterfv( handle.d->foreground, VG_PAINT_COLOR, 4, DEFAULT_FOREGROUND ); return handle; }
font_factory::font_factory(void) : nbEnt(0), // Note: this "ents" cache only keeps fonts from being unreffed, does not speed up access maxEnt(32), ents(static_cast<font_entry*>(g_malloc(maxEnt*sizeof(font_entry)))), #ifdef USE_PANGO_WIN32 fontServer(pango_win32_font_map_for_display()), fontContext(pango_win32_get_context()), pangoFontCache(pango_win32_font_map_get_font_cache(fontServer)), hScreenDC(pango_win32_get_dc()), #else fontServer(pango_ft2_font_map_new()), fontContext(0), #endif fontSize(512), loadedPtr(new FaceMapType()) { #ifdef USE_PANGO_WIN32 #else pango_ft2_font_map_set_resolution(PANGO_FT2_FONT_MAP(fontServer), 72, 72); fontContext = pango_font_map_create_context(fontServer); pango_ft2_font_map_set_default_substitute(PANGO_FT2_FONT_MAP(fontServer), FactorySubstituteFunc, this, NULL); #endif }
static gpointer pangoft2_view_create (const PangoViewer *klass) { PangoFontMap *fontmap; fontmap = pango_ft2_font_map_new (); pango_ft2_font_map_set_resolution (PANGO_FT2_FONT_MAP (fontmap), opt_dpi, opt_dpi); pango_ft2_font_map_set_default_substitute (PANGO_FT2_FONT_MAP (fontmap), substitute_func, NULL, NULL); return fontmap; }
/** * gnome_print_pango_font_map_new: * * Creates a new #PangoFontMap object suitable for use with * gnome-print. In most cases, you probably want to use * gnome_print_pango_get_default_font_map () instead. * * Return value: a newly created #PangoFontMap object **/ PangoFontMap * gnome_print_pango_font_map_new (void) { PangoFontMap *fontmap = NULL; PangoFT2FontMap *ft2fontmap; fontmap = pango_ft2_font_map_new (); ft2fontmap = PANGO_FT2_FONT_MAP (fontmap); pango_ft2_font_map_set_resolution (ft2fontmap, 72, 72); pango_ft2_font_map_set_default_substitute (ft2fontmap, substitute_func, NULL, NULL); set_is_gnome_print_object (G_OBJECT (fontmap)); return fontmap; }
void gimp_font_list_restore (GimpFontList *list) { PangoFontMap *fontmap; PangoContext *context; g_return_if_fail (GIMP_IS_FONT_LIST (list)); if (font_desc_to_string == NULL) { PangoFontDescription *desc; gchar *name; gchar last_char; desc = pango_font_description_new (); pango_font_description_set_family (desc, "Wilber 12"); name = pango_font_description_to_string (desc); last_char = name[strlen (name) - 1]; g_free (name); pango_font_description_free (desc); if (last_char != ',') font_desc_to_string = &gimp_font_util_pango_font_description_to_string; else font_desc_to_string = &pango_font_description_to_string; } fontmap = pango_ft2_font_map_new (); pango_ft2_font_map_set_resolution (PANGO_FT2_FONT_MAP (fontmap), list->xresolution, list->yresolution); context = pango_ft2_font_map_create_context (PANGO_FT2_FONT_MAP (fontmap)); g_object_unref (fontmap); gimp_container_freeze (GIMP_CONTAINER (list)); gimp_font_list_load_names (list, fontmap, context); g_object_unref (context); gimp_list_sort_by_name (GIMP_LIST (list)); gimp_container_thaw (GIMP_CONTAINER (list)); }
void gtk_glwidget_create_font(){ PangoFontDescription *font_desc; PangoLayout *layout; PangoRectangle log_rect; int font_ascent_pango_units; int font_descent_pango_units; if ( _debug_font_created ) { Error( "Programming error: gtk_glwidget_create_font() was already called; " "you must call gtk_glwidget_destroy_font() before creating font again" ); } _debug_font_created = 1; font_map = pango_ft2_font_map_new(); pango_ft2_font_map_set_resolution( PANGO_FT2_FONT_MAP( font_map ), 72, 72 ); ft2_context = pango_font_map_create_context( PANGO_FONT_MAP( font_map )); font_desc = pango_font_description_from_string( font_string ); pango_font_description_set_size( font_desc, font_height * PANGO_SCALE ); pango_context_set_font_description( ft2_context, font_desc ); pango_font_description_free( font_desc ); layout = pango_layout_new( ft2_context ); // I don't believe that's standard preprocessor syntax? #if !PANGO_VERSION_CHECK( 1,22,0 ) PangoLayoutIter *iter; iter = pango_layout_get_iter( layout ); font_ascent_pango_units = pango_layout_iter_get_baseline( iter ); pango_layout_iter_free( iter ); #else font_ascent_pango_units = pango_layout_get_baseline( layout ); #endif pango_layout_get_extents( layout, NULL, &log_rect ); g_object_unref( G_OBJECT( layout ) ); font_descent_pango_units = log_rect.height - font_ascent_pango_units; font_ascent = PANGO_PIXELS_CEIL( font_ascent_pango_units ); font_descent = PANGO_PIXELS_CEIL( font_descent_pango_units ); y_offset_bitmap_render_pango_units = ( font_ascent * PANGO_SCALE ) - font_ascent_pango_units; }
static Image *ReadCAPTIONImage(const ImageInfo *image_info, ExceptionInfo *exception) { char *caption, *property; const char *option; DrawInfo *draw_info; FT_Bitmap *canvas; Image *image; PangoAlignment align; PangoContext *context; PangoFontDescription *description; PangoFontMap *fontmap; PangoGravity gravity; PangoLayout *layout; PangoRectangle extent; PixelPacket fill_color; RectangleInfo page; register PixelPacket *q; register unsigned char *p; ssize_t y; /* Initialize Image structure. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); image=AcquireImage(image_info); (void) ResetImagePage(image,"0x0+0+0"); /* Get context. */ fontmap=(PangoFontMap *) pango_ft2_font_map_new(); pango_ft2_font_map_set_resolution((PangoFT2FontMap *) fontmap, image->x_resolution,image->y_resolution); option=GetImageOption(image_info,"caption:hinting"); pango_ft2_font_map_set_default_substitute((PangoFT2FontMap *) fontmap, PangoSubstitute,(char *) option,NULL); context=pango_font_map_create_context(fontmap); option=GetImageOption(image_info,"caption:language"); if (option != (const char *) NULL) pango_context_set_language(context,pango_language_from_string(option)); draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL); pango_context_set_base_dir(context,draw_info->direction == RightToLeftDirection ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR); switch (draw_info->gravity) { case NorthGravity: gravity=PANGO_GRAVITY_NORTH; break; case WestGravity: gravity=PANGO_GRAVITY_WEST; break; case EastGravity: gravity=PANGO_GRAVITY_EAST; break; case SouthGravity: gravity=PANGO_GRAVITY_SOUTH; break; default: gravity=PANGO_GRAVITY_AUTO; break; } pango_context_set_base_gravity(context,gravity); option=GetImageOption(image_info,"caption:gravity-hint"); if (option != (const char *) NULL) { if (LocaleCompare(option,"line") == 0) pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_LINE); if (LocaleCompare(option,"natural") == 0) pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_NATURAL); if (LocaleCompare(option,"strong") == 0) pango_context_set_gravity_hint(context,PANGO_GRAVITY_HINT_STRONG); } /* Configure layout. */ layout=pango_layout_new(context); option=GetImageOption(image_info,"caption:auto-dir"); if (option != (const char *) NULL) pango_layout_set_auto_dir(layout,1); option=GetImageOption(image_info,"caption:ellipsize"); if (option != (const char *) NULL) { if (LocaleCompare(option,"end") == 0) pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_END); if (LocaleCompare(option,"middle") == 0) pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_MIDDLE); if (LocaleCompare(option,"none") == 0) pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_NONE); if (LocaleCompare(option,"start") == 0) pango_layout_set_ellipsize(layout,PANGO_ELLIPSIZE_START); } option=GetImageOption(image_info,"caption:justify"); if ((option != (const char *) NULL) && (IsMagickTrue(option) != MagickFalse)) pango_layout_set_justify(layout,1); option=GetImageOption(image_info,"caption:single-paragraph"); if ((option != (const char *) NULL) && (IsMagickTrue(option) != MagickFalse)) pango_layout_set_single_paragraph_mode(layout,1); option=GetImageOption(image_info,"caption:wrap"); if (option != (const char *) NULL) { if (LocaleCompare(option,"char") == 0) pango_layout_set_wrap(layout,PANGO_WRAP_CHAR); if (LocaleCompare(option,"word") == 0) pango_layout_set_wrap(layout,PANGO_WRAP_WORD); if (LocaleCompare(option,"word-char") == 0) pango_layout_set_wrap(layout,PANGO_WRAP_WORD_CHAR); } option=GetImageOption(image_info,"caption:indent"); if (option != (const char *) NULL) pango_layout_set_indent(layout,(StringToLong(option)*image->x_resolution* PANGO_SCALE+36)/72); switch (draw_info->align) { case CenterAlign: align=PANGO_ALIGN_CENTER; break; case RightAlign: align=PANGO_ALIGN_RIGHT; break; case LeftAlign: default: align=PANGO_ALIGN_LEFT; break; } if ((align != PANGO_ALIGN_CENTER) && (draw_info->direction == RightToLeftDirection)) align=(PangoAlignment) (PANGO_ALIGN_LEFT+PANGO_ALIGN_RIGHT-align); pango_layout_set_alignment(layout,align); description=pango_font_description_from_string(draw_info->font == (char *) NULL ? "helvetica" : draw_info->font); pango_font_description_set_size(description,PANGO_SCALE*draw_info->pointsize); pango_layout_set_font_description(layout,description); pango_font_description_free(description); property=InterpretImageProperties(image_info,image,image_info->filename); (void) SetImageProperty(image,"caption",property); property=DestroyString(property); caption=ConstantString(GetImageProperty(image,"caption")); /* Render caption. */ option=GetImageOption(image_info,"caption:markup"); if ((option != (const char *) NULL) && (IsMagickTrue(option) != MagickFalse)) pango_layout_set_markup(layout,caption,-1); else pango_layout_set_text(layout,caption,-1); pango_layout_context_changed(layout); page.x=0; page.y=0; if (image_info->page != (char *) NULL) (void) ParseAbsoluteGeometry(image_info->page,&page); if (image->columns == 0) { pango_layout_get_pixel_extents(layout,NULL,&extent); image->columns=extent.x+extent.width; } else { image->columns-=2*page.x; pango_layout_set_width(layout,(PANGO_SCALE*image->columns* image->x_resolution+36.0)/72.0); } if (image->rows == 0) { pango_layout_get_pixel_extents(layout,NULL,&extent); image->rows=extent.y+extent.height; } else { image->rows-=2*page.y; pango_layout_set_height(layout,(PANGO_SCALE*image->rows* image->y_resolution+36.0)/72.0); } /* Create canvas. */ canvas=(FT_Bitmap *) AcquireMagickMemory(sizeof(*canvas)); if (canvas == (FT_Bitmap *) NULL) { draw_info=DestroyDrawInfo(draw_info); ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); } canvas->width=image->columns; canvas->pitch=(canvas->width+3) & ~3; canvas->rows=image->rows; canvas->buffer=(unsigned char *) AcquireQuantumMemory(canvas->pitch, canvas->rows*sizeof(*canvas->buffer)); if (canvas->buffer == (unsigned char *) NULL) { draw_info=DestroyDrawInfo(draw_info); canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas); ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); } canvas->num_grays=256; canvas->pixel_mode=ft_pixel_mode_grays; ResetMagickMemory(canvas->buffer,0x00,canvas->pitch*canvas->rows); pango_ft2_render_layout(canvas,layout,0,0); /* Convert caption to image. */ image->columns+=2*page.x; image->rows+=2*page.y; if (SetImageBackgroundColor(image) == MagickFalse) { draw_info=DestroyDrawInfo(draw_info); canvas->buffer=(unsigned char *) RelinquishMagickMemory(canvas->buffer); canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas); caption=DestroyString(caption); image=DestroyImageList(image); return((Image *) NULL); } p=canvas->buffer; for (y=page.y; y < (ssize_t) (image->rows-page.y); y++) { register ssize_t x; q=GetAuthenticPixels(image,0,y,image->columns,1,exception); if (q == (PixelPacket *) NULL) break; q+=page.x; for (x=page.x; x < (ssize_t) (image->columns-page.x); x++) { MagickRealType fill_opacity; (void) GetFillColor(draw_info,x,y,&fill_color); fill_opacity=QuantumRange-(*p)/canvas->num_grays*(QuantumRange- fill_color.opacity); if (draw_info->text_antialias == MagickFalse) fill_opacity=fill_opacity >= 0.5 ? 1.0 : 0.0; MagickCompositeOver(&fill_color,fill_opacity,q,q->opacity,q); p++; q++; } for ( ; x < (ssize_t) ((canvas->width+3) & ~3); x++) p++; } /* Relinquish resources. */ draw_info=DestroyDrawInfo(draw_info); canvas->buffer=(unsigned char *) RelinquishMagickMemory(canvas->buffer); canvas=(FT_Bitmap *) RelinquishMagickMemory(canvas); caption=DestroyString(caption); return(GetFirstImageInList(image)); }