1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ 2 /* This file is part of the GtkHTML library. 3 * 4 * Copyright (C) 2000 Helix Code, Inc. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef _HTMLPRINTER_H 23 #define _HTMLPRINTER_H 24 25 #include <gtk/gtk.h> 26 #include "htmlpainter.h" 27 28 #define HTML_TYPE_PRINTER (html_printer_get_type ()) 29 #define HTML_PRINTER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), HTML_TYPE_PRINTER, HTMLPrinter)) 30 #define HTML_PRINTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), HTML_TYPE_PRINTER, HTMLPrinterClass)) 31 #define HTML_IS_PRINTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), HTML_TYPE_PRINTER)) 32 #define HTML_IS_PRINTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), HTML_TYPE_PRINTER)) 33 34 /* The following macros are used to convert between the HTMLEngine coordinate 35 * system (which uses integers) to the GnomePrint one (which uses doubles). */ 36 37 #define SCALE_ENGINE_TO_GNOME_PRINT(x) ((printer->scale * (x)) / 1024.0) 38 #define SCALE_GNOME_PRINT_TO_ENGINE(x) ((gint) (((x) * 1024.0 / printer->scale) + 0.5)) 39 40 struct _HTMLPrinter { 41 HTMLPainter base; 42 43 GtkPrintContext *context; 44 gdouble scale; 45 }; 46 47 struct _HTMLPrinterClass { 48 HTMLPainterClass base; 49 }; 50 51 GType html_printer_get_type (void); 52 HTMLPainter *html_printer_new (GtkWidget *widget, 53 GtkPrintContext *context); 54 guint html_printer_get_page_width (HTMLPrinter *printer); 55 guint html_printer_get_page_height (HTMLPrinter *printer); 56 gdouble html_printer_scale_to_gnome_print (HTMLPrinter *printer, 57 gint x); 58 void html_printer_set_scale (HTMLPrinter *printer, 59 gdouble scale); 60 61 #endif /* _HTMLPRINTER_H */ 62