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>
40 #define GTK_GS_TYPE (gtk_gs_get_type())
41 #define GTK_GS(obj) GTK_CHECK_CAST (obj, gtk_gs_get_type (), GtkGS)
42 #define GTK_GS_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, gtk_gs_get_type (), GtkGSClass)
43 #define GTK_IS_GS(obj) GTK_CHECK_TYPE (obj, gtk_gs_get_type())
45 typedef struct _GtkGS GtkGS;
46 typedef struct _GtkGSClass GtkGSClass;
47 typedef struct _GtkGSPaperSize GtkGSPaperSize;
50 GTK_GS_ORIENTATION_NONE = -1,
51 GTK_GS_ORIENTATION_PORTRAIT = 0,
52 GTK_GS_ORIENTATION_SEASCAPE = 3,
53 GTK_GS_ORIENTATION_UPSIDEDOWN = 2,
54 GTK_GS_ORIENTATION_LANDSCAPE = 1
58 GTK_GS_ZOOM_ABSOLUTE = 0,
59 GTK_GS_ZOOM_FIT_WIDTH = 1,
60 GTK_GS_ZOOM_FIT_PAGE = 2
65 GdkWindow *pstarget; /* the window passed to gv
66 * it is a child of widget...
70 GtkGSZoomMode zoom_mode;
72 GdkPixmap *bpixmap; /* Backing pixmap */
75 long message_window; /* Used by ghostview to receive messages from app */
77 int disable_start; /* Can the interpreter be started? */
78 pid_t interpreter_pid; /* PID of interpreter, -1 if none */
79 int interpreter_input; /* stdin of interpreter */
80 int interpreter_output; /* stdout of interpreter */
81 int interpreter_err; /* stderr of interpreter */
82 guint interpreter_input_id;
83 guint interpreter_output_id;
84 guint interpreter_error_id;
94 gint width; /* Size of window at last setup() */
96 gboolean busy; /* Is gs busy drawing? */
97 gboolean changed; /* Anything changed since setup */
100 gboolean structured_doc;
103 struct record_list *ps_input;
104 gchar *input_buffer_ptr;
106 guint buffer_bytes_left;
108 FILE *gs_psfile; /* the currently loaded FILE */
109 gchar *gs_filename; /* the currently loaded filename */
110 gchar *gs_filename_dsc; /* Used to browse PDF to PS */
111 gchar *gs_filename_unc; /* Uncompressed file */
114 gboolean send_filename_to_gs; /* True if gs should read from file directly */
115 gboolean reading_from_pipe; /* True if ggv is reading input from pipe */
116 struct document *doc;
118 /* User selected options... */
119 gboolean antialiased; /* Using antialiased display */
120 gboolean respect_eof; /* respect EOF comments? */
122 gboolean override_size;
124 gboolean override_orientation;
125 gint fallback_orientation; /* Orientation to use if override */
126 gint real_orientation; /* Real orientation from the document */
128 const gchar *gs_status; /* GtkGS status */
130 guint avail_w, avail_h;
134 GObjectClass parent_class;
136 GdkAtom gs_colors_atom;
142 GConfClient *gconf_client;
144 void (*interpreter_message) (GtkGS *, gchar *, gpointer);
145 void (*interpreter_error) (GtkGS *, gint, gpointer);
149 /* structure to describe section of file to send to ghostscript */
154 gboolean seek_needed;
156 struct record_list *next;
159 struct _GtkGSPaperSize {
164 GType gtk_gs_get_type(void);
166 GObject *gtk_gs_new_from_file(GtkAdjustment * hadj, GtkAdjustment * vadj,
168 GObject *gtk_gs_new(GtkAdjustment * hadj, GtkAdjustment * vadj);
169 gboolean gtk_gs_load(GtkGS * gs, const gchar * fname);
170 void gtk_gs_reload(GtkGS * gs);
172 /* control functions */
173 void gtk_gs_center_page(GtkGS * gs);
174 gboolean gtk_gs_next_page(GtkGS * gs);
175 gboolean gtk_gs_prev_page(GtkGS * gs);
176 gboolean gtk_gs_goto_page(GtkGS * gs, gint);
177 gint gtk_gs_enable_interpreter(GtkGS * gs);
178 void gtk_gs_disable_interpreter(GtkGS * gs);
180 gint gtk_gs_get_current_page(GtkGS * gs);
181 gint gtk_gs_get_page_count(GtkGS * gs);
182 gboolean gtk_gs_set_page_size(GtkGS * gs, gint new_pagesize, gint pageid);
183 gboolean gtk_gs_set_default_orientation(GtkGS * gs, gint orientation);
184 gint gtk_gs_get_default_orientation(GtkGS * gs);
185 void gtk_gs_set_default_size(GtkGS * gs, gint size);
186 gint gtk_gs_get_default_size(GtkGS * gs);
187 void gtk_gs_set_zoom(GtkGS * gs, gfloat zoom);
188 gfloat gtk_gs_get_zoom(GtkGS * gs);
189 gfloat gtk_gs_zoom_to_fit(GtkGS * gs, gboolean fit_width);
190 void gtk_gs_set_center(GtkGS * gs, gfloat hval, gfloat vval);
191 gint gtk_gs_get_orientation(GtkGS * gs);
192 void gtk_gs_set_override_orientation(GtkGS * gs, gboolean f);
193 gboolean gtk_gs_get_override_orientation(GtkGS * gs);
194 void gtk_gs_set_respect_eof(GtkGS * gs, gboolean f);
195 gboolean gtk_gs_get_respect_eof(GtkGS * gs);
196 void gtk_gs_set_antialiasing(GtkGS * gs, gboolean f);
197 gboolean gtk_gs_get_antialiasing(GtkGS * gs);
198 void gtk_gs_set_override_size(GtkGS * gs, gboolean f);
199 gboolean gtk_gs_get_override_size(GtkGS * gs);
200 const gchar *gtk_gs_get_document_title(GtkGS * widget);
201 guint gtk_gs_get_document_numpages(GtkGS * widget);
202 const gchar *gtk_gs_get_document_page_label(GtkGS * widget, int page);
204 void gtk_gs_set_zoom_mode(GtkGS * gs, GtkGSZoomMode zoom_mode);
205 GtkGSZoomMode gtk_gs_get_zoom_mode(GtkGS * gs);
207 void gtk_gs_set_available_size(GtkGS * gs, guint avail_w, guint avail_h);
209 /* utility functions */
210 gint gtk_gs_get_size_index(const gchar * string, GtkGSPaperSize * size);
212 gchar *gtk_gs_get_postscript(GtkGS * gs, gint * pages);
214 #define GTK_GS_IS_COMPRESSED(gs) (GTK_GS(gs)->gs_filename_unc != NULL)
215 #define GTK_GS_GET_PS_FILE(gs) (GTK_GS_IS_COMPRESSED(gs) ? \
216 GTK_GS(gs)->gs_filename_unc : \
217 GTK_GS(gs)->gs_filename)
218 #define GTK_GS_IS_PDF(gs) (GTK_GS(gs)->gs_filename_dsc != NULL)
219 #define GTK_GS_IS_STRUCTURED_DOC(gs) (GTK_GS(gs)->structured_doc)
223 #endif /* __GTK_GS_H__ */