2 * Ghostscript widget for GTK/GNOME
4 * Copyright 1998 - 2005 The Free Software Foundation
6 * Authors: Jaka Mocnik, Federico Mena (Quartic), Szekeres Istvan (Pista)
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
28 #include <gtk/gtkwidget.h>
30 #include <gconf/gconf-client.h>
35 #include <sys/types.h>
42 #define GTK_GS_TYPE (gtk_gs_get_type())
43 #define GTK_GS(obj) GTK_CHECK_CAST (obj, gtk_gs_get_type (), GtkGS)
44 #define GTK_GS_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, gtk_gs_get_type (), GtkGSClass)
45 #define GTK_IS_GS(obj) GTK_CHECK_TYPE (obj, gtk_gs_get_type())
47 typedef struct _GtkGS GtkGS;
48 typedef struct _GtkGSClass GtkGSClass;
52 GdkWindow *pstarget; /* the window passed to gv
53 * it is a child of widget...
57 GtkGSZoomMode zoom_mode;
59 GdkPixmap *bpixmap; /* Backing pixmap */
61 long message_window; /* Used by ghostview to receive messages from app */
63 int disable_start; /* Can the interpreter be started? */
64 pid_t interpreter_pid; /* PID of interpreter, -1 if none */
65 int interpreter_input; /* stdin of interpreter */
66 int interpreter_output; /* stdout of interpreter */
67 int interpreter_err; /* stderr of interpreter */
68 guint interpreter_input_id;
69 guint interpreter_output_id;
70 guint interpreter_error_id;
80 gint width; /* Size of window at last setup() */
82 gboolean busy; /* Is gs busy drawing? */
83 gboolean changed; /* Anything changed since setup */
86 gboolean structured_doc;
89 struct record_list *ps_input;
90 gchar *input_buffer_ptr;
92 guint buffer_bytes_left;
94 FILE *gs_psfile; /* the currently loaded FILE */
95 gchar *gs_filename; /* the currently loaded filename */
96 gchar *gs_filename_dsc; /* Used to browse PDF to PS */
97 gchar *gs_filename_unc; /* Uncompressed file */
100 gboolean send_filename_to_gs; /* True if gs should read from file directly */
101 gboolean reading_from_pipe; /* True if ggv is reading input from pipe */
102 struct document *doc;
104 /* User selected options... */
105 gboolean antialiased; /* Using antialiased display */
106 gboolean respect_eof; /* respect EOF comments? */
108 gboolean override_size;
110 gboolean override_orientation;
111 gint fallback_orientation; /* Orientation to use if override */
112 gint real_orientation; /* Real orientation from the document */
114 const gchar *gs_status; /* GtkGS status */
116 guint avail_w, avail_h;
120 GObjectClass parent_class;
122 GdkAtom gs_colors_atom;
128 GConfClient *gconf_client;
130 void (*interpreter_message) (GtkGS *, gchar *, gpointer);
131 void (*interpreter_error) (GtkGS *, gint, gpointer);
135 /* structure to describe section of file to send to ghostscript */
140 gboolean seek_needed;
142 struct record_list *next;
145 GType gtk_gs_get_type(void);
147 GObject *gtk_gs_new_from_file(GtkAdjustment * hadj, GtkAdjustment * vadj,
149 GObject *gtk_gs_new(GtkAdjustment * hadj, GtkAdjustment * vadj);
150 gboolean gtk_gs_load(GtkGS * gs, const gchar * fname);
151 void gtk_gs_reload(GtkGS * gs);
153 /* control functions */
154 gboolean gtk_gs_next_page(GtkGS * gs);
155 gboolean gtk_gs_prev_page(GtkGS * gs);
156 gboolean gtk_gs_goto_page(GtkGS * gs, gint);
157 gint gtk_gs_enable_interpreter(GtkGS * gs);
158 void gtk_gs_disable_interpreter(GtkGS * gs);
160 gint gtk_gs_get_current_page(GtkGS * gs);
161 gint gtk_gs_get_page_count(GtkGS * gs);
162 gboolean gtk_gs_set_page_size(GtkGS * gs, gint new_pagesize, gint pageid);
163 gboolean gtk_gs_set_default_orientation(GtkGS * gs, gint orientation);
164 gint gtk_gs_get_default_orientation(GtkGS * gs);
165 void gtk_gs_set_default_size(GtkGS * gs, gint size);
166 gint gtk_gs_get_default_size(GtkGS * gs);
167 void gtk_gs_set_zoom(GtkGS * gs, gfloat zoom);
168 gfloat gtk_gs_get_zoom(GtkGS * gs);
169 gfloat gtk_gs_zoom_to_fit(GtkGS * gs, gboolean fit_width);
170 void gtk_gs_set_center(GtkGS * gs, gfloat hval, gfloat vval);
171 gint gtk_gs_get_orientation(GtkGS * gs);
172 void gtk_gs_set_override_orientation(GtkGS * gs, gboolean f);
173 gboolean gtk_gs_get_override_orientation(GtkGS * gs);
174 void gtk_gs_set_respect_eof(GtkGS * gs, gboolean f);
175 gboolean gtk_gs_get_respect_eof(GtkGS * gs);
176 void gtk_gs_set_antialiasing(GtkGS * gs, gboolean f);
177 gboolean gtk_gs_get_antialiasing(GtkGS * gs);
178 void gtk_gs_set_override_size(GtkGS * gs, gboolean f);
179 gboolean gtk_gs_get_override_size(GtkGS * gs);
180 const gchar *gtk_gs_get_document_title(GtkGS * widget);
181 guint gtk_gs_get_document_numpages(GtkGS * widget);
182 const gchar *gtk_gs_get_document_page_label(GtkGS * widget, int page);
184 void gtk_gs_set_zoom_mode(GtkGS * gs, GtkGSZoomMode zoom_mode);
185 GtkGSZoomMode gtk_gs_get_zoom_mode(GtkGS * gs);
187 void gtk_gs_set_available_size(GtkGS * gs, guint avail_w, guint avail_h);
189 /* utility functions */
190 gint gtk_gs_get_size_index(const gchar * string, GtkGSPaperSize * size);
192 gchar *gtk_gs_get_postscript(GtkGS * gs, gint * pages);
194 #define GTK_GS_IS_COMPRESSED(gs) (GTK_GS(gs)->gs_filename_unc != NULL)
195 #define GTK_GS_GET_PS_FILE(gs) (GTK_GS_IS_COMPRESSED(gs) ? \
196 GTK_GS(gs)->gs_filename_unc : \
197 GTK_GS(gs)->gs_filename)
198 #define GTK_GS_IS_PDF(gs) (GTK_GS(gs)->gs_filename_dsc != NULL)
199 #define GTK_GS_IS_STRUCTURED_DOC(gs) (GTK_GS(gs)->structured_doc)
203 #endif /* __GTK_GS_H__ */