gtkhardcopy.hpp
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1 
5 /* Copyright (c) 2005-2009 Taneli Kalvas. All rights reserved.
6  *
7  * You can redistribute this software and/or modify it under the terms
8  * of the GNU General Public License as published by the Free Software
9  * Foundation; either version 2 of the License, or (at your option)
10  * any later version.
11  *
12  * This library is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * General Public License for more details.
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17  * You should have received a copy of the GNU General Public License
18  * along with this library (file "COPYING" included in the package);
19  * if not, write to the Free Software Foundation, Inc., 51 Franklin
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22  * If you have questions about your rights to use or distribute this
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42 
43 #ifndef GTKHARDCOPY_HPP
44 #define GTKHARDCOPY_HPP 1
45 
46 
47 #include <gtk/gtk.h>
48 #include <png.h>
49 #include "frame.hpp"
50 
51 
52 
53 
57 {
58  GtkWidget *_window;
59  Frame *_frame;
60 
61  double _aspect;
62  size_t _width;
63  size_t _height;
64 
65  GtkWidget *_spinx;
66  GtkWidget *_spiny;
67 
68  static void spinx_signal( GtkSpinButton *spinbutton,
69  gpointer object );
70  static void spiny_signal( GtkSpinButton *spinbutton,
71  gpointer object );
72  static int type_from_extension( const char *filename );
73  static void ensure_extension( std::string &filename,
74  const std::string &extension );
75  static void treeview_changed( GtkTreeSelection *selection,
76  gpointer userdata );
77 
78  void spinx( void );
79  void spiny( void );
80 
81  void get_image_size( cairo_surface_t *p_surface,
82  int &width, int &height );
83  static void unpremultiply_data( png_structp png,
84  png_row_infop row_info,
85  png_bytep data );
86  void write_to_png( cairo_surface_t *p_surface,
87  int width, int height,
88  const char *filename );
89  void write_png( const char *filename );
90 
91 
92  void write_eps( const char *filename );
93 
94 
95  void write_svg( const char *filename );
96 
97 
98  void write_pdf( const char *filename );
99 public:
100 
101  GTKHardcopy( GtkWidget *window, Frame *frame, size_t width, size_t height );
102 
103  ~GTKHardcopy();
104 
105  void run( void );
106 
107 };
108 
109 
110 #endif
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