#define MAX_BUFSIZE 1024
+#define GTK_GS_IS_COMPRESSED(gs) (GTK_GS(gs)->gs_filename_unc != NULL)
+#define GTK_GS_GET_PS_FILE(gs) (GTK_GS_IS_COMPRESSED(gs) ? \
+ GTK_GS(gs)->gs_filename_unc : \
+ GTK_GS(gs)->gs_filename)
+
enum { INTERPRETER_MESSAGE, INTERPRETER_ERROR, LAST_SIGNAL };
+/* structure to describe section of file to send to ghostscript */
+struct record_list {
+ FILE *fp;
+ long begin;
+ guint len;
+ gboolean seek_needed;
+ gboolean close;
+ struct record_list *next;
+};
+
static gboolean broken_pipe = FALSE;
static void
/* Forward declarations */
static void gtk_gs_init(GtkGS * gs);
static void gtk_gs_class_init(GtkGSClass * klass);
-static void gtk_gs_interpreter_message(GtkGS * gs, gchar * msg,
- gpointer user_data);
static void gtk_gs_emit_error_msg(GtkGS * gs, const gchar * msg);
static void gtk_gs_finalize(GObject * object);
static void send_ps(GtkGS * gs, long begin, unsigned int len, gboolean close);
static void stop_interpreter(GtkGS * gs);
static gint start_interpreter(GtkGS * gs);
gboolean computeSize(void);
+static gboolean gtk_gs_set_page_size(GtkGS * gs, gint new_pagesize, gint pageid);
static void ps_document_document_iface_init (EvDocumentIface *iface);
static GObjectClass *parent_class = NULL;
static GtkGSClass *gs_class = NULL;
-static gint gtk_gs_signals[LAST_SIGNAL] = { 0 };
-
-/* Static, private functions */
-
-static void
-ggv_marshaller_VOID__POINTER(GClosure * closure,
- GValue * return_value,
- guint n_param_values,
- const GValue * param_values,
- gpointer invocation_hint, gpointer marshal_data)
-{
- typedef void (*GMarshalFunc_VOID__POINTER) (gpointer data1,
- gpointer arg_1, gpointer data2);
- register GMarshalFunc_VOID__POINTER callback;
- register GCClosure *cc = (GCClosure *) closure;
- register gpointer data1, data2;
-
- g_return_if_fail(n_param_values == 2);
-
- if(G_CCLOSURE_SWAP_DATA(closure)) {
- data1 = closure->data;
- data2 = g_value_peek_pointer(param_values + 0);
- }
- else {
- data1 = g_value_peek_pointer(param_values + 0);
- data2 = closure->data;
- }
- callback =
- (GMarshalFunc_VOID__POINTER) (marshal_data ? marshal_data : cc->callback);
-
- callback(data1, g_value_get_pointer(param_values + 1), data2);
-}
-
-static void
-ggv_marshaller_VOID__INT(GClosure * closure,
- GValue * return_value,
- guint n_param_values,
- const GValue * param_values,
- gpointer invocation_hint, gpointer marshal_data)
-{
- typedef void (*GMarshalFunc_VOID__INT) (gpointer data1,
- gint arg_1, gpointer data2);
- register GMarshalFunc_VOID__INT callback;
- register GCClosure *cc = (GCClosure *) closure;
- register gpointer data1, data2;
-
- g_return_if_fail(n_param_values == 2);
-
- if(G_CCLOSURE_SWAP_DATA(closure)) {
- data1 = closure->data;
- data2 = g_value_peek_pointer(param_values + 0);
- }
- else {
- data1 = g_value_peek_pointer(param_values + 0);
- data2 = closure->data;
- }
- callback =
- (GMarshalFunc_VOID__INT) (marshal_data ? marshal_data : cc->callback);
-
- callback(data1, g_value_get_int(param_values + 1), data2);
-}
-
static void
gtk_gs_init(GtkGS * gs)
{
parent_class = gtk_type_class(gtk_widget_get_type());
gs_class = klass;
- gtk_gs_signals[INTERPRETER_MESSAGE] = g_signal_new("interpreter_message",
- G_TYPE_FROM_CLASS
- (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET
- (GtkGSClass,
- interpreter_message),
- NULL, NULL,
- ggv_marshaller_VOID__POINTER,
- G_TYPE_NONE, 1,
- G_TYPE_POINTER);
- gtk_gs_signals[INTERPRETER_ERROR] =
- g_signal_new("interpreter_error", G_TYPE_FROM_CLASS(object_class),
- G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET(GtkGSClass,
- interpreter_error),
- NULL, NULL, ggv_marshaller_VOID__INT, G_TYPE_NONE, 1,
- G_TYPE_INT);
-
object_class->finalize = gtk_gs_finalize;
/* Create atoms */
klass->done_atom = gdk_atom_intern("DONE", FALSE);
klass->string_atom = gdk_atom_intern("STRING", FALSE);
- /* a default handler for "interpreter_message" signal */
- klass->interpreter_message = gtk_gs_interpreter_message;
-
gtk_gs_defaults_load();
}
set_up_page(gs);
}
-/* free message as it was allocated in output() */
-static void
-gtk_gs_interpreter_message(GtkGS * gs, gchar * msg, gpointer user_data)
-{
- gdk_pointer_ungrab(GDK_CURRENT_TIME);
- if(strstr(msg, "Error:")) {
- gs->gs_status = _("File is not a valid PostScript document.");
- gtk_gs_cleanup(gs);
- g_signal_emit_by_name(G_OBJECT(gs), "interpreter_error", 1, NULL);
- }
- g_free(msg);
-}
-
static void
gtk_gs_finalize(GObject * object)
{
(*G_OBJECT_CLASS(parent_class)->finalize) (object);
}
-void
-gtk_gs_set_center(GtkGS * gs, gfloat hval, gfloat vval)
-{
-}
-
static void
send_ps(GtkGS * gs, long begin, unsigned int len, gboolean close)
{
}
}
+static gint
+gtk_gs_get_orientation(GtkGS * gs)
+{
+ g_return_val_if_fail(gs != NULL, -1);
+ g_return_val_if_fail(GTK_IS_GS(gs), -1);
+
+ if(gs->doc) {
+ if(gs->structured_doc) {
+ if(gs->doc->pages[MAX(gs->current_page, 0)].orientation !=
+ GTK_GS_ORIENTATION_NONE)
+ gs->real_orientation =
+ gs->doc->pages[MAX(gs->current_page, 0)].orientation;
+ else
+ gs->real_orientation = gs->doc->default_page_orientation;
+ }
+
+ if(gs->real_orientation == GTK_GS_ORIENTATION_NONE)
+ gs->real_orientation = gs->doc->orientation;
+ }
+
+ if(gs->override_orientation ||
+ gs->real_orientation == GTK_GS_ORIENTATION_NONE)
+ return gs->fallback_orientation;
+ else
+ return gs->real_orientation;
+}
+
static void
set_up_page(GtkGS * gs)
{
if(bytes > 0) {
buf[bytes] = '\0';
msg = g_strdup(buf);
- g_signal_emit (G_OBJECT(gs), gtk_gs_signals[INTERPRETER_MESSAGE], 0, msg);
+ gtk_gs_emit_error_msg (gs, msg);
}
}
if(status == 1) {
gtk_gs_cleanup(gs);
gs->gs_status = _("Interpreter failed.");
- g_signal_emit_by_name(G_OBJECT(gs), "interpreter_error", status);
}
}
return (change);
}
-gint
+static gint
gtk_gs_enable_interpreter(GtkGS * gs)
{
g_return_val_if_fail(gs != NULL, FALSE);
}
-GObject *
-gtk_gs_new(GtkAdjustment * hadj, GtkAdjustment * vadj)
-{
- GObject *gs;
-
- gs = g_object_new(GTK_GS_TYPE, NULL);
-
- return gs;
-}
-
-
-GObject *
-gtk_gs_new_from_file(GtkAdjustment * hadj, GtkAdjustment * vadj, char *fname)
-{
- GObject *gs = gtk_gs_new(hadj, vadj);
- gtk_gs_load(GTK_GS(gs), fname);
- return gs;
-}
-
-void
-gtk_gs_reload(GtkGS * gs)
-{
- gchar *fname;
- gint page;
-
- if(!gs->gs_filename)
- return;
-
- page = gtk_gs_get_current_page(gs);
- fname = g_strdup(gs->gs_filename);
- gtk_gs_load(gs, fname);
- gtk_gs_goto_page(gs, page);
- g_free(fname);
-}
-
-
/*
* Show error message -> send signal "interpreter_message"
*/
static void
gtk_gs_emit_error_msg(GtkGS * gs, const gchar * msg)
{
- g_signal_emit (G_OBJECT(gs),
- gtk_gs_signals[INTERPRETER_MESSAGE], 0, g_strdup(msg));
-}
-
-void
-gtk_gs_disable_interpreter(GtkGS * gs)
-{
- g_return_if_fail(gs != NULL);
- g_return_if_fail(GTK_IS_GS(gs));
-
- gs->disable_start = TRUE;
-
- stop_interpreter(gs);
+ gdk_pointer_ungrab(GDK_CURRENT_TIME);
+ if(strstr(msg, "Error:")) {
+ gs->gs_status = _("File is not a valid PostScript document.");
+ gtk_gs_cleanup(gs);
+ }
}
-gboolean
+static gboolean
gtk_gs_load(GtkGS * gs, const gchar * fname)
{
g_return_val_if_fail(gs != NULL, FALSE);
}
-gboolean
+static gboolean
gtk_gs_next_page(GtkGS * gs)
{
XEvent event;
return TRUE;
}
-gint
+static gint
gtk_gs_get_current_page(GtkGS * gs)
{
g_return_val_if_fail(gs != NULL, -1);
return gs->current_page;
}
-gint
+static gint
gtk_gs_get_page_count(GtkGS * gs)
{
if(!gs->gs_filename)
return 0;
}
-gboolean
+static gboolean
gtk_gs_goto_page(GtkGS * gs, gint page)
{
g_return_val_if_fail(gs != NULL, FALSE);
* c) the default setting of the widget.
* otherwise, the new_pagesize is used as the pagesize
*/
-gboolean
+static gboolean
gtk_gs_set_page_size(GtkGS * gs, gint new_pagesize, gint pageid)
{
gint new_llx = 0;
return FALSE;
}
-void
-gtk_gs_set_override_orientation(GtkGS * gs, gboolean bNewOverride)
-{
- gint iOldOrientation;
-
- g_return_if_fail(gs != NULL);
- g_return_if_fail(GTK_IS_GS(gs));
-
- iOldOrientation = gtk_gs_get_orientation(gs);
-
- gs->override_orientation = bNewOverride;
-
- /* If the current orientation is different from the
- new orientation then redisplay */
- if(iOldOrientation != gtk_gs_get_orientation(gs)) {
- gs->changed = TRUE;
- set_up_page(gs);
- }
-}
-
-gboolean
-gtk_gs_get_override_orientation(GtkGS * gs)
+static gfloat
+gtk_gs_zoom_to_fit(GtkGS * gs, gboolean fit_width)
{
- g_return_val_if_fail(gs != NULL, FALSE);
- g_return_val_if_fail(GTK_IS_GS(gs), FALSE);
+ gint new_y;
+ gfloat new_zoom;
+ guint avail_w, avail_h;
- return gs->override_orientation;
-}
+ g_return_val_if_fail(gs != NULL, 0.0);
+ g_return_val_if_fail(GTK_IS_GS(gs), 0.0);
-void
-gtk_gs_set_override_size(GtkGS * gs, gboolean f)
-{
- g_return_if_fail(gs != NULL);
- g_return_if_fail(GTK_IS_GS(gs));
+ avail_w = (gs->avail_w > 0) ? gs->avail_w : gs->width;
+ avail_h = (gs->avail_h > 0) ? gs->avail_h : gs->height;
- if(f != gs->override_size) {
- gs->override_size = f;
- gs->changed = TRUE;
- gtk_gs_set_page_size(gs, -1, gs->current_page);
- set_up_page(gs);
+ new_zoom = ((gfloat) avail_w) / ((gfloat) gs->width) * gs->zoom_factor;
+ if(!fit_width) {
+ new_y = new_zoom * ((gfloat) gs->height) / gs->zoom_factor;
+ if(new_y > avail_h)
+ new_zoom = ((gfloat) avail_h) / ((gfloat) gs->height) * gs->zoom_factor;
}
-}
-gboolean
-gtk_gs_get_override_size(GtkGS * gs)
-{
- g_return_val_if_fail(gs != NULL, FALSE);
- g_return_val_if_fail(GTK_IS_GS(gs), FALSE);
-
- return gs->override_size;
+ return new_zoom;
}
-void
+static void
gtk_gs_set_zoom(GtkGS * gs, gfloat zoom)
{
g_return_if_fail(gs != NULL);
gtk_gs_goto_page(gs, gs->current_page);
}
-gfloat
-gtk_gs_get_zoom(GtkGS * gs)
-{
- g_return_val_if_fail(gs != NULL, 0.0);
- g_return_val_if_fail(GTK_IS_GS(gs), 0.0);
-
- return gs->zoom_factor;
-}
-
-gfloat
-gtk_gs_zoom_to_fit(GtkGS * gs, gboolean fit_width)
-{
- gint new_y;
- gfloat new_zoom;
- guint avail_w, avail_h;
-
- g_return_val_if_fail(gs != NULL, 0.0);
- g_return_val_if_fail(GTK_IS_GS(gs), 0.0);
-
- avail_w = (gs->avail_w > 0) ? gs->avail_w : gs->width;
- avail_h = (gs->avail_h > 0) ? gs->avail_h : gs->height;
-
- new_zoom = ((gfloat) avail_w) / ((gfloat) gs->width) * gs->zoom_factor;
- if(!fit_width) {
- new_y = new_zoom * ((gfloat) gs->height) / gs->zoom_factor;
- if(new_y > avail_h)
- new_zoom = ((gfloat) avail_h) / ((gfloat) gs->height) * gs->zoom_factor;
- }
-
- return new_zoom;
-}
-
-gboolean
-gtk_gs_set_default_orientation(GtkGS * gs, gint orientation)
-{
- gint iOldOrientation;
-
- g_return_val_if_fail(gs != NULL, FALSE);
- g_return_val_if_fail(GTK_IS_GS(gs), FALSE);
- g_return_val_if_fail((orientation == GTK_GS_ORIENTATION_PORTRAIT) ||
- (orientation == GTK_GS_ORIENTATION_LANDSCAPE) ||
- (orientation == GTK_GS_ORIENTATION_UPSIDEDOWN) ||
- (orientation == GTK_GS_ORIENTATION_SEASCAPE), FALSE);
-
- iOldOrientation = gtk_gs_get_orientation(gs);
- gs->fallback_orientation = orientation;
-
- /* We are setting the fallback orientation */
- if(iOldOrientation != gtk_gs_get_orientation(gs)) {
- gs->changed = TRUE;
- set_up_page(gs);
- return TRUE;
- }
-
- return FALSE;
-}
-
-gint
-gtk_gs_get_default_orientation(GtkGS * gs)
-{
- g_return_val_if_fail(gs != NULL, -1);
- g_return_val_if_fail(GTK_IS_GS(gs), -1);
-
- return gs->fallback_orientation;
-}
-
-gint
-gtk_gs_get_orientation(GtkGS * gs)
-{
- g_return_val_if_fail(gs != NULL, -1);
- g_return_val_if_fail(GTK_IS_GS(gs), -1);
-
- if(gs->doc) {
- if(gs->structured_doc) {
- if(gs->doc->pages[MAX(gs->current_page, 0)].orientation !=
- GTK_GS_ORIENTATION_NONE)
- gs->real_orientation =
- gs->doc->pages[MAX(gs->current_page, 0)].orientation;
- else
- gs->real_orientation = gs->doc->default_page_orientation;
- }
-
- if(gs->real_orientation == GTK_GS_ORIENTATION_NONE)
- gs->real_orientation = gs->doc->orientation;
- }
-
- if(gs->override_orientation ||
- gs->real_orientation == GTK_GS_ORIENTATION_NONE)
- return gs->fallback_orientation;
- else
- return gs->real_orientation;
-}
-
-void
-gtk_gs_set_default_size(GtkGS * gs, gint size)
-{
- g_return_if_fail(gs != NULL);
- g_return_if_fail(GTK_IS_GS(gs));
-
- gs->default_size = size;
- gtk_gs_set_page_size(gs, -1, gs->current_page);
-}
-
-gint
-gtk_gs_get_default_size(GtkGS * gs)
-{
- g_return_val_if_fail(gs != NULL, -1);
- g_return_val_if_fail(GTK_IS_GS(gs), -1);
-
- return gs->default_size;
-}
-
-void
-gtk_gs_set_respect_eof(GtkGS * gs, gboolean f)
-{
- g_return_if_fail(gs != NULL);
- g_return_if_fail(GTK_IS_GS(gs));
-
- if(gs->respect_eof == f)
- return;
-
- gs->respect_eof = f;
- gtk_gs_set_page_size(gs, -1, gs->current_page);
-}
-
-gint
-gtk_gs_get_respect_eof(GtkGS * gs)
-{
- g_return_val_if_fail(gs != NULL, -1);
- g_return_val_if_fail(GTK_IS_GS(gs), -1);
-
- return gs->respect_eof;
-}
-
-void
-gtk_gs_set_antialiasing(GtkGS * gs, gboolean f)
-{
- g_return_if_fail(gs != NULL);
- g_return_if_fail(GTK_IS_GS(gs));
-
- if(gs->antialiased == f)
- return;
-
- gs->antialiased = f;
- gs->changed = TRUE;
- start_interpreter(gs);
- gtk_gs_goto_page(gs, gs->current_page);
-}
-
-gint
-gtk_gs_get_antialiasing(GtkGS * gs)
-{
- g_return_val_if_fail(gs != NULL, -1);
- g_return_val_if_fail(GTK_IS_GS(gs), -1);
-
- return gs->antialiased;
-}
-
-const gchar *
-gtk_gs_get_document_title(GtkGS * gs)
-{
- g_return_val_if_fail(gs != NULL, NULL);
- g_return_val_if_fail(GTK_IS_GS(gs), NULL);
-
- if(gs->doc && gs->doc->title)
- return gs->doc->title;
-
- return NULL;
-}
-
-guint
-gtk_gs_get_document_numpages(GtkGS * widget)
-{
- g_return_val_if_fail(widget != NULL, 0);
- g_return_val_if_fail(GTK_IS_GS(widget), 0);
-
- if(widget->doc)
- return widget->doc->numpages;
-
- return 0;
-}
-
-const gchar *
-gtk_gs_get_document_page_label(GtkGS * widget, int page)
-{
- g_return_val_if_fail(widget != NULL, NULL);
- g_return_val_if_fail(GTK_IS_GS(widget), NULL);
-
- if(widget->doc && widget->doc->pages && (widget->doc->numpages >= page))
- return widget->doc->pages[page - 1].label;
-
- return NULL;
-}
-
-gint
-gtk_gs_get_size_index(const gchar * string, GtkGSPaperSize * size)
-{
- guint idx = 0;
-
- while(size[idx].name != NULL) {
- if(strcmp(size[idx].name, string) == 0)
- return idx;
- idx++;
- }
-
- return -1;
-}
-
-gchar *
-gtk_gs_get_postscript(GtkGS * gs, gint * pages)
-{
- GtkGSDocSink *sink;
- gchar *doc;
- gboolean free_pages = FALSE;
-
- if(pages == NULL) {
- if(!gs->structured_doc) {
- FILE *f;
- struct stat sb;
-
- if(stat(GTK_GS_GET_PS_FILE(gs), &sb))
- return NULL;
- doc = g_new(gchar, sb.st_size);
- if(!doc)
- return NULL;
- f = fopen(GTK_GS_GET_PS_FILE(gs), "r");
- if(NULL != f && fread(doc, sb.st_size, 1, f) != 1) {
- g_free(doc);
- doc = NULL;
- }
- if(NULL != f)
- fclose(f);
- return doc;
- }
- else {
- int i, n = gtk_gs_get_page_count(gs);
- pages = g_new0(gint, n);
- for(i = 0; i < n; i++)
- pages[i] = TRUE;
- free_pages = TRUE;
- }
- }
-
- sink = gtk_gs_doc_sink_new();
-
- if(GTK_GS_IS_PDF(gs)) {
- gchar *tmpn = g_strconcat(g_get_tmp_dir(), "/ggvXXXXXX", NULL);
- gchar *cmd, *fname;
- int tmpfd;
-
- if((tmpfd = mkstemp(tmpn)) < 0) {
- g_free(tmpn);
- return NULL;
- }
- close(tmpfd);
- fname = g_shell_quote (gs->gs_filename_unc ?
- gs->gs_filename_unc : gs->gs_filename);
- cmd = g_strdup_printf(gtk_gs_defaults_get_convert_pdf_cmd(), tmpn, fname);
- g_free(fname);
- if((system(cmd) == 0) && file_readable(tmpn)) {
- GObject *tmp_gs;
- tmp_gs = gtk_gs_new_from_file(NULL, NULL, tmpn);
- if(NULL != tmp_gs) {
- if(GTK_GS(tmp_gs)->loaded)
- pscopydoc(sink, tmpn, GTK_GS(tmp_gs)->doc, pages);
- g_object_unref(tmp_gs);
- }
- }
- g_free(cmd);
- g_free(tmpn);
- }
- else {
- /* Use uncompressed file if necessary */
- pscopydoc(sink, GTK_GS_GET_PS_FILE(gs), gs->doc, pages);
- }
- if(free_pages)
- g_free(pages);
- doc = gtk_gs_doc_sink_get_buffer(sink);
- gtk_gs_doc_sink_free(sink);
- return doc;
-}
-
-void
-gtk_gs_set_zoom_mode(GtkGS * gs, GtkGSZoomMode zoom_mode)
-{
- if(zoom_mode != gs->zoom_mode) {
- gs->zoom_mode = zoom_mode;
- gtk_gs_set_zoom(gs, 1.0);
- }
- gtk_gs_goto_page(gs, gs->current_page);
-}
-
-GtkGSZoomMode
-gtk_gs_get_zoom_mode(GtkGS * gs)
-{
- return gs->zoom_mode;
-}
-
-void
-gtk_gs_set_available_size(GtkGS * gs, guint avail_w, guint avail_h)
-{
- gs->avail_w = avail_w;
- gs->avail_h = avail_h;
- if(gs->zoom_mode != GTK_GS_ZOOM_ABSOLUTE) {
- gtk_gs_set_zoom(gs, 0.0);
- }
-}
-
static gboolean
ps_document_load (EvDocument *document,
const char *uri,
https://www.fi.muni.cz/~kas/git / evince.git / commitdiff