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 */
74 long message_window; /* Used by ghostview to receive messages from app */
76 int disable_start; /* Can the interpreter be started? */
77 pid_t interpreter_pid; /* PID of interpreter, -1 if none */
78 int interpreter_input; /* stdin of interpreter */
79 int interpreter_output; /* stdout of interpreter */
80 int interpreter_err; /* stderr of interpreter */
81 guint interpreter_input_id;
82 guint interpreter_output_id;
83 guint interpreter_error_id;
93 gint width; /* Size of window at last setup() */
95 gboolean busy; /* Is gs busy drawing? */
96 gboolean changed; /* Anything changed since setup */
99 gboolean structured_doc;
102 struct record_list *ps_input;
103 gchar *input_buffer_ptr;
105 guint buffer_bytes_left;
107 FILE *gs_psfile; /* the currently loaded FILE */
108 gchar *gs_filename; /* the currently loaded filename */
109 gchar *gs_filename_dsc; /* Used to browse PDF to PS */
110 gchar *gs_filename_unc; /* Uncompressed file */
113 gboolean send_filename_to_gs; /* True if gs should read from file directly */
114 gboolean reading_from_pipe; /* True if ggv is reading input from pipe */
115 struct document *doc;
117 /* User selected options... */
118 gboolean antialiased; /* Using antialiased display */
119 gboolean respect_eof; /* respect EOF comments? */
121 gboolean override_size;
123 gboolean override_orientation;
124 gint fallback_orientation; /* Orientation to use if override */
125 gint real_orientation; /* Real orientation from the document */
127 const gchar *gs_status; /* GtkGS status */
129 guint avail_w, avail_h;
133 GObjectClass parent_class;
135 GdkAtom gs_colors_atom;
141 GConfClient *gconf_client;
143 void (*interpreter_message) (GtkGS *, gchar *, gpointer);
144 void (*interpreter_error) (GtkGS *, gint, gpointer);
148 /* structure to describe section of file to send to ghostscript */
153 gboolean seek_needed;
155 struct record_list *next;
158 struct _GtkGSPaperSize {
163 GType gtk_gs_get_type(void);
165 GObject *gtk_gs_new_from_file(GtkAdjustment * hadj, GtkAdjustment * vadj,
167 GObject *gtk_gs_new(GtkAdjustment * hadj, GtkAdjustment * vadj);
168 gboolean gtk_gs_load(GtkGS * gs, const gchar * fname);
169 void gtk_gs_reload(GtkGS * gs);
171 /* control functions */
172 gboolean gtk_gs_next_page(GtkGS * gs);
173 gboolean gtk_gs_prev_page(GtkGS * gs);
174 gboolean gtk_gs_goto_page(GtkGS * gs, gint);
175 gint gtk_gs_enable_interpreter(GtkGS * gs);
176 void gtk_gs_disable_interpreter(GtkGS * gs);
178 gint gtk_gs_get_current_page(GtkGS * gs);
179 gint gtk_gs_get_page_count(GtkGS * gs);
180 gboolean gtk_gs_set_page_size(GtkGS * gs, gint new_pagesize, gint pageid);
181 gboolean gtk_gs_set_default_orientation(GtkGS * gs, gint orientation);
182 gint gtk_gs_get_default_orientation(GtkGS * gs);
183 void gtk_gs_set_default_size(GtkGS * gs, gint size);
184 gint gtk_gs_get_default_size(GtkGS * gs);
185 void gtk_gs_set_zoom(GtkGS * gs, gfloat zoom);
186 gfloat gtk_gs_get_zoom(GtkGS * gs);
187 gfloat gtk_gs_zoom_to_fit(GtkGS * gs, gboolean fit_width);
188 void gtk_gs_set_center(GtkGS * gs, gfloat hval, gfloat vval);
189 gint gtk_gs_get_orientation(GtkGS * gs);
190 void gtk_gs_set_override_orientation(GtkGS * gs, gboolean f);
191 gboolean gtk_gs_get_override_orientation(GtkGS * gs);
192 void gtk_gs_set_respect_eof(GtkGS * gs, gboolean f);
193 gboolean gtk_gs_get_respect_eof(GtkGS * gs);
194 void gtk_gs_set_antialiasing(GtkGS * gs, gboolean f);
195 gboolean gtk_gs_get_antialiasing(GtkGS * gs);
196 void gtk_gs_set_override_size(GtkGS * gs, gboolean f);
197 gboolean gtk_gs_get_override_size(GtkGS * gs);
198 const gchar *gtk_gs_get_document_title(GtkGS * widget);
199 guint gtk_gs_get_document_numpages(GtkGS * widget);
200 const gchar *gtk_gs_get_document_page_label(GtkGS * widget, int page);
202 void gtk_gs_set_zoom_mode(GtkGS * gs, GtkGSZoomMode zoom_mode);
203 GtkGSZoomMode gtk_gs_get_zoom_mode(GtkGS * gs);
205 void gtk_gs_set_available_size(GtkGS * gs, guint avail_w, guint avail_h);
207 /* utility functions */
208 gint gtk_gs_get_size_index(const gchar * string, GtkGSPaperSize * size);
210 gchar *gtk_gs_get_postscript(GtkGS * gs, gint * pages);
212 #define GTK_GS_IS_COMPRESSED(gs) (GTK_GS(gs)->gs_filename_unc != NULL)
213 #define GTK_GS_GET_PS_FILE(gs) (GTK_GS_IS_COMPRESSED(gs) ? \
214 GTK_GS(gs)->gs_filename_unc : \
215 GTK_GS(gs)->gs_filename)
216 #define GTK_GS_IS_PDF(gs) (GTK_GS(gs)->gs_filename_dsc != NULL)
217 #define GTK_GS_IS_STRUCTURED_DOC(gs) (GTK_GS(gs)->structured_doc)
221 #endif /* __GTK_GS_H__ */