X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=ps%2Fps-document.c;h=75009dc9844f54c4ed8ef6ede8240c26a19d36f9;hb=3979c5c5ca307cad84b417b0d350aa205fdc422f;hp=fda942b25ed36d6b0c44168b56bd421ca20f95ba;hpb=317e9a2524e83504db0b328b0fba3a5edb2bb5c9;p=evince.git diff --git a/ps/ps-document.c b/ps/ps-document.c index fda942b2..75009dc9 100644 --- a/ps/ps-document.c +++ b/ps/ps-document.c @@ -22,108 +22,6 @@ * Boston, MA 02111-1307, USA. */ -/* -Ghostview interface to ghostscript - -When the GHOSTVIEW environment variable is set, ghostscript draws on -an existing drawable rather than creating its own window. Ghostscript -can be directed to draw on either a window or a pixmap. - -Drawing on a Window - -The GHOSTVIEW environment variable contains the window id of the target -window. The window id is an integer. Ghostscript will use the attributes -of the window to obtain the width, height, colormap, screen, and visual of -the window. The remainder of the information is gotten from the GHOSTVIEW -property on that window. - - -Drawing on a Pixmap - -The GHOSTVIEW environment variable contains a window id and a pixmap id. -They are integers separated by white space. Ghostscript will use the -attributes of the window to obtain the colormap, screen, and visual to use. -The width and height will be obtained from the pixmap. The remainder of the -information, is gotten from the GHOSTVIEW property on the window. In this -case, the property is deleted when read. - -The GHOSTVIEW environment variable - -parameters: window-id [pixmap-id] - -scanf format: "%d %d" - -explanation of parameters: - - window-id: tells ghostscript where to - - read the GHOSTVIEW property - - send events - If pixmap-id is not present, - ghostscript will draw on this window. - - pixmap-id: If present, tells ghostscript that a pixmap will be used - as the final destination for drawing. The window will - not be touched for drawing purposes. - -The GHOSTVIEW property - -type: STRING - -parameters: - - bpixmap orient llx lly urx ury xdpi ydpi [left bottom top right] - -scanf format: "%d %d %d %d %d %d %f %f %d %d %d %d" - -explanation of parameters: - - bpixmap: pixmap id of the backing pixmap for the window. If no - pixmap is to be used, this parameter should be zero. This - parameter must be zero when drawing on a pixmap. - - orient: orientation of the page. The number represents clockwise - rotation of the paper in degrees. Permitted values are - 0, 90, 180, 270. - - llx, lly, urx, ury: Bounding box of the drawable. The bounding box - is specified in PostScript points in default user coordinates. - - xdpi, ydpi: Resolution of window. (This can be derived from the - other parameters, but not without roundoff error. These - values are included to avoid this error.) - - left, bottom, top, right: (optional) - Margins around the window. The margins extend the imageable - area beyond the boundaries of the window. This is primarily - used for popup zoom windows. I have encountered several - instances of PostScript programs that position themselves - with respect to the imageable area. The margins are specified - in PostScript points. If omitted, the margins are assumed to - be 0. - -Events from ghostscript - -If the final destination is a pixmap, the client will get a property notify -event when ghostscript reads the GHOSTVIEW property causing it to be deleted. - -Ghostscript sends events to the window where it read the GHOSTVIEW property. -These events are of type ClientMessage. The message_type is set to -either PAGE or DONE. The first long data value gives the window to be used -to send replies to ghostscript. The second long data value gives the primary -drawable. If rendering to a pixmap, it is the primary drawable. If rendering -to a window, the backing pixmap is the primary drawable. If no backing pixmap -is employed, then the window is the primary drawable. This field is necessary -to distinguish multiple ghostscripts rendering to separate pixmaps where the -GHOSTVIEW property was placed on the same window. - -The PAGE message indicates that a "page" has completed. Ghostscript will -wait until it receives a ClientMessage whose message_type is NEXT before -continuing. - -The DONE message indicates that ghostscript has finished processing. - -*/ - #include "config.h" #include #include @@ -134,10 +32,6 @@ The DONE message indicates that ghostscript has finished processing. #include #include #include -#ifdef HAVE_XINERAMA -# include -# include -#endif /* HAVE_XINERAMA */ #include #include #include @@ -152,795 +46,783 @@ The DONE message indicates that ghostscript has finished processing. #include "ps-document.h" #include "ev-debug.h" #include "gsdefaults.h" - -#ifdef HAVE_LOCALE_H -# include -#endif - -/* if POSIX O_NONBLOCK is not available, use O_NDELAY */ -#if !defined(O_NONBLOCK) && defined(O_NDELAY) -# define O_NONBLOCK O_NDELAY -#endif - -#define PS_DOCUMENT_WATCH_INTERVAL 1000 -#define PS_DOCUMENT_WATCH_TIMEOUT 2 +#include "ev-ps-exporter.h" +#include "ev-async-renderer.h" #define MAX_BUFSIZE 1024 -#define PS_DOCUMENT_IS_COMPRESSED(gs) (PS_DOCUMENT(gs)->gs_filename_unc != NULL) -#define PS_DOCUMENT_GET_PS_FILE(gs) (PS_DOCUMENT_IS_COMPRESSED(gs) ? \ - PS_DOCUMENT(gs)->gs_filename_unc : \ - PS_DOCUMENT(gs)->gs_filename) - -enum { INTERPRETER_MESSAGE, INTERPRETER_ERROR, LAST_SIGNAL }; - -enum { - PROP_0, - PROP_TITLE -}; +#define PS_DOCUMENT_IS_COMPRESSED(gs) (PS_DOCUMENT(gs)->gs_filename_unc != NULL) +#define PS_DOCUMENT_GET_PS_FILE(gs) (PS_DOCUMENT_IS_COMPRESSED(gs) ? \ + PS_DOCUMENT(gs)->gs_filename_unc : \ + PS_DOCUMENT(gs)->gs_filename) /* 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; +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 -catchPipe(int i) -{ - broken_pipe = True; -} - /* Forward declarations */ -static void ps_document_init(PSDocument * gs); -static void ps_document_class_init(PSDocumentClass * klass); -static void ps_document_emit_error_msg(PSDocument * gs, const gchar * msg); -static void ps_document_finalize(GObject * object); -static void send_ps(PSDocument * gs, long begin, unsigned int len, gboolean close); -static void set_up_page(PSDocument * gs); -static void close_pipe(int p[2]); -static void interpreter_failed(PSDocument * gs); -static float compute_xdpi(void); -static float compute_ydpi(void); -static gboolean compute_size(PSDocument * gs); -static void output(gpointer data, gint source, GdkInputCondition condition); -static void input(gpointer data, gint source, GdkInputCondition condition); -static void stop_interpreter(PSDocument * gs); -static gint start_interpreter(PSDocument * gs); -gboolean computeSize(void); -static gboolean ps_document_set_page_size(PSDocument * gs, gint new_pagesize, gint pageid); -static void ps_document_document_iface_init (EvDocumentIface *iface); +static void ps_document_init (PSDocument *gs); +static void ps_document_class_init (PSDocumentClass *klass); +static void send_ps (PSDocument *gs, + long begin, + unsigned int len, + gboolean close); +static void output (gpointer data, + gint source, + GdkInputCondition condition); +static void input (gpointer data, + gint source, + GdkInputCondition condition); +static void stop_interpreter (PSDocument *gs); +static gint start_interpreter (PSDocument *gs); +static void ps_document_document_iface_init (EvDocumentIface *iface); +static void ps_document_ps_exporter_iface_init (EvPSExporterIface *iface); +static void ps_async_renderer_iface_init (EvAsyncRendererIface *iface); + +G_DEFINE_TYPE_WITH_CODE (PSDocument, ps_document, G_TYPE_OBJECT, + { + G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, + ps_document_document_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER, + ps_document_ps_exporter_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_ASYNC_RENDERER, + ps_async_renderer_iface_init); + }); static GObjectClass *parent_class = NULL; - static PSDocumentClass *gs_class = NULL; static void -ps_document_init(PSDocument * gs) +ps_document_init (PSDocument *gs) { - gs->bpixmap = NULL; - - gs->current_page = -2; - gs->disable_start = FALSE; - gs->interpreter_pid = -1; - - gs->width = -1; - gs->height = -1; - gs->busy = FALSE; - gs->changed = FALSE; - gs->gs_scanstyle = 0; - gs->gs_filename = 0; - gs->gs_filename_dsc = 0; - gs->gs_filename_unc = 0; - - broken_pipe = FALSE; - - gs->structured_doc = FALSE; - gs->reading_from_pipe = FALSE; - gs->send_filename_to_gs = FALSE; - - gs->doc = NULL; - gs->loaded = FALSE; - - gs->interpreter_input = -1; - gs->interpreter_output = -1; - gs->interpreter_err = -1; - gs->interpreter_input_id = 0; - gs->interpreter_output_id = 0; - gs->interpreter_error_id = 0; - - gs->ps_input = NULL; - gs->input_buffer = NULL; - gs->input_buffer_ptr = NULL; - gs->bytes_left = 0; - gs->buffer_bytes_left = 0; - - gs->llx = 0; - gs->lly = 0; - gs->urx = 0; - gs->ury = 0; - gs->xdpi = compute_xdpi(); - gs->ydpi = compute_ydpi(); - - gs->left_margin = 0; - gs->top_margin = 0; - gs->right_margin = 0; - gs->bottom_margin = 0; - - gs->page_x_offset = 0; - gs->page_y_offset = 0; - - /* Set user defined defaults */ - gs->override_orientation = gtk_gs_defaults_get_override_orientation(); - gs->fallback_orientation = gtk_gs_defaults_get_orientation(); - gs->zoom_factor = gtk_gs_defaults_get_zoom_factor(); - gs->default_size = gtk_gs_defaults_get_size(); - gs->antialiased = gtk_gs_defaults_get_antialiased(); - gs->override_size = gtk_gs_defaults_get_override_size(); - gs->respect_eof = gtk_gs_defaults_get_respect_eof(); - gs->zoom_mode = gtk_gs_defaults_get_zoom_mode(); - - gs->gs_status = _("No document loaded."); + gs->bpixmap = NULL; + + gs->interpreter_pid = -1; + + gs->busy = FALSE; + gs->gs_filename = 0; + gs->gs_filename_unc = 0; + + broken_pipe = FALSE; + + gs->structured_doc = FALSE; + gs->reading_from_pipe = FALSE; + gs->send_filename_to_gs = FALSE; + + gs->doc = NULL; + + gs->interpreter_input = -1; + gs->interpreter_output = -1; + gs->interpreter_err = -1; + gs->interpreter_input_id = 0; + gs->interpreter_output_id = 0; + gs->interpreter_error_id = 0; + + gs->ps_input = NULL; + gs->input_buffer = NULL; + gs->input_buffer_ptr = NULL; + gs->bytes_left = 0; + gs->buffer_bytes_left = 0; + + gs->gs_status = _("No document loaded."); + + gs->ps_export_pagelist = NULL; + gs->ps_export_filename = NULL; } static void -ps_document_set_property (GObject *object, - guint prop_id, - const GValue *value, - GParamSpec *pspec) +ps_document_dispose (GObject *object) { - switch (prop_id) + PSDocument *gs = PS_DOCUMENT (object); - { - case PROP_TITLE: - /* read only */ - break; + g_return_if_fail (gs != NULL); + + if (gs->gs_psfile) { + fclose (gs->gs_psfile); + gs->gs_psfile = NULL; } -} -static void -ps_document_get_property (GObject *object, - guint prop_id, - GValue *value, - GParamSpec *pspec) -{ - PSDocument *ps = PS_DOCUMENT (object); + if (gs->gs_filename) { + g_free (gs->gs_filename); + gs->gs_filename = NULL; + } - switch (prop_id) - { - case PROP_TITLE: - if (ps->doc) { - g_value_set_string (value, ps->doc->title); - } else { - g_value_set_string (value, NULL); - } - break; + if (gs->doc) { + psfree (gs->doc); + gs->doc = NULL; + } + + if (gs->gs_filename_unc) { + unlink(gs->gs_filename_unc); + g_free(gs->gs_filename_unc); + gs->gs_filename_unc = NULL; + } + + if (gs->bpixmap) { + gdk_drawable_unref (gs->bpixmap); + } + + if(gs->input_buffer) { + g_free(gs->input_buffer); + gs->input_buffer = NULL; } + + if (gs->target_window) { + gtk_widget_destroy (gs->target_window); + gs->target_window = NULL; + gs->pstarget = NULL; + } + + stop_interpreter (gs); + + G_OBJECT_CLASS (parent_class)->dispose (object); } static void ps_document_class_init(PSDocumentClass *klass) { - GObjectClass *object_class; - - object_class = (GObjectClass *) klass; - parent_class = g_type_class_peek_parent (klass); - gs_class = klass; + GObjectClass *object_class; - object_class->finalize = ps_document_finalize; - object_class->get_property = ps_document_get_property; - object_class->set_property = ps_document_set_property; + object_class = (GObjectClass *) klass; + parent_class = g_type_class_peek_parent (klass); + gs_class = klass; - /* Create atoms */ - klass->gs_atom = gdk_atom_intern("GHOSTVIEW", FALSE); - klass->next_atom = gdk_atom_intern("NEXT", FALSE); - klass->page_atom = gdk_atom_intern("PAGE", FALSE); - klass->string_atom = gdk_atom_intern("STRING", FALSE); + object_class->dispose = ps_document_dispose; - gtk_gs_defaults_load(); - - g_object_class_override_property (object_class, PROP_TITLE, "title"); + klass->gs_atom = gdk_atom_intern ("GHOSTVIEW", FALSE); + klass->next_atom = gdk_atom_intern ("NEXT", FALSE); + klass->page_atom = gdk_atom_intern ("PAGE", FALSE); + klass->string_atom = gdk_atom_intern ("STRING", FALSE); } -/* Clean all memory and temporal files */ static void -ps_document_cleanup(PSDocument * gs) +push_pixbuf (PSDocument *gs) { - g_return_if_fail(gs != NULL); - g_return_if_fail(GTK_IS_GS(gs)); - - stop_interpreter(gs); - - if(gs->gs_psfile) { - fclose(gs->gs_psfile); - gs->gs_psfile = NULL; - } - if(gs->gs_filename) { - g_free(gs->gs_filename); - gs->gs_filename = NULL; - } - if(gs->doc) { - psfree(gs->doc); - gs->doc = NULL; - } - if(gs->gs_filename_dsc) { - unlink(gs->gs_filename_dsc); - g_free(gs->gs_filename_dsc); - gs->gs_filename_dsc = NULL; - } - if(gs->gs_filename_unc) { - unlink(gs->gs_filename_unc); - g_free(gs->gs_filename_unc); - gs->gs_filename_unc = NULL; - } - gs->current_page = -1; - gs->loaded = FALSE; - gs->llx = 0; - gs->lly = 0; - gs->urx = 0; - gs->ury = 0; - set_up_page(gs); + GdkColormap *cmap; + GdkPixbuf *pixbuf; + int width, height; + + cmap = gdk_window_get_colormap (gs->pstarget); + gdk_drawable_get_size (gs->bpixmap, &width, &height); + LOG ("Get from drawable\n"); + pixbuf = gdk_pixbuf_get_from_drawable (NULL, gs->bpixmap, cmap, + 0, 0, 0, 0, + width, height); + LOG ("Get from drawable done\n"); + g_signal_emit_by_name (gs, "render_finished", pixbuf); + g_object_unref (pixbuf); } static void -ps_document_finalize (GObject * object) +interpreter_failed (PSDocument *gs, char *msg) { - PSDocument *gs; + LOG ("Interpreter failed %s", msg); - g_return_if_fail (object != NULL); - g_return_if_fail (GTK_IS_GS (object)); + push_pixbuf (gs); - LOG ("Finalize"); + stop_interpreter (gs); +} - gs = PS_DOCUMENT (object); +static gboolean +ps_document_widget_event (GtkWidget *widget, GdkEvent *event, gpointer data) +{ + PSDocument *gs = (PSDocument *) data; - ps_document_cleanup (gs); - stop_interpreter (gs); + if(event->type != GDK_CLIENT_EVENT) + return FALSE; - if(gs->input_buffer) { - g_free(gs->input_buffer); - gs->input_buffer = NULL; + gs->message_window = event->client.data.l[0]; + + if (event->client.message_type == gs_class->page_atom) { + LOG ("GS rendered the document"); + gs->busy = FALSE; + + push_pixbuf (gs); + LOG ("Pixbuf pushed"); } - (*G_OBJECT_CLASS(parent_class)->finalize) (object); + return TRUE; } static void -send_ps(PSDocument * gs, long begin, unsigned int len, gboolean close) +send_ps (PSDocument *gs, long begin, unsigned int len, gboolean close) { - struct record_list *ps_new; - - if(gs->interpreter_input < 0) { - g_critical("No pipe to gs: error in send_ps()."); - return; - } - - ps_new = (struct record_list *) g_malloc(sizeof(struct record_list)); - ps_new->fp = gs->gs_psfile; - ps_new->begin = begin; - ps_new->len = len; - ps_new->seek_needed = TRUE; - ps_new->close = close; - ps_new->next = NULL; - - if(gs->input_buffer == NULL) { - gs->input_buffer = g_malloc(MAX_BUFSIZE); - } - - if(gs->ps_input == NULL) { - gs->input_buffer_ptr = gs->input_buffer; - gs->bytes_left = len; - gs->buffer_bytes_left = 0; - gs->ps_input = ps_new; - gs->interpreter_input_id = - gdk_input_add(gs->interpreter_input, GDK_INPUT_WRITE, input, gs); - } - else { - struct record_list *p = gs->ps_input; - while(p->next != NULL) { - p = p->next; - } - p->next = ps_new; - } + struct record_list *ps_new; + + if (gs->interpreter_input < 0) { + g_critical("No pipe to gs: error in send_ps()."); + return; + } + + ps_new = g_new0 (struct record_list, 1); + ps_new->fp = gs->gs_psfile; + ps_new->begin = begin; + ps_new->len = len; + ps_new->seek_needed = TRUE; + ps_new->close = close; + ps_new->next = NULL; + + if (gs->input_buffer == NULL) { + gs->input_buffer = g_malloc(MAX_BUFSIZE); + } + + if (gs->ps_input == NULL) { + gs->input_buffer_ptr = gs->input_buffer; + gs->bytes_left = len; + gs->buffer_bytes_left = 0; + gs->ps_input = ps_new; + gs->interpreter_input_id = gdk_input_add + (gs->interpreter_input, GDK_INPUT_WRITE, input, gs); + } else { + struct record_list *p = gs->ps_input; + while (p->next != NULL) { + p = p->next; + } + p->next = ps_new; + } } -static gint -ps_document_get_orientation(PSDocument * gs) +static float +get_xdpi (PSDocument *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; + return 25.4 * gdk_screen_width() / gdk_screen_width_mm(); +} + +static float +get_ydpi (PSDocument *gs) +{ + return 25.4 * gdk_screen_height() / gdk_screen_height_mm(); } static void -set_up_page(PSDocument * gs) +setup_pixmap (PSDocument *gs, int page, double scale, int rotation) { - guint orientation; - char buf[1024]; - //GdkColormap *colormap; - GdkGC *fill; - GdkColor white = { 0, 0xFFFF, 0xFFFF, 0xFFFF }; /* pixel, r, g, b */ - GdkColormap *colormap; - - LOG ("Setup the page"); - -#ifdef HAVE_LOCALE_H - char *savelocale; -#endif - - if (gs->pstarget == NULL) - return; - - /* Do we have to check if the actual geometry changed? */ - - stop_interpreter(gs); - - orientation = ps_document_get_orientation(gs); - - if(compute_size(gs)) { - gdk_flush(); - - /* clear new pixmap (set to white) */ - fill = gdk_gc_new(gs->pstarget); - if(fill) { - colormap = gdk_drawable_get_colormap(gs->pstarget); - gdk_color_alloc (colormap, &white); - gdk_gc_set_foreground(fill, &white); - - if(gs->width > 0 && gs->height > 0) { - if(gs->bpixmap) { - gdk_drawable_unref(gs->bpixmap); - gs->bpixmap = NULL; - } - - LOG ("Create our internal pixmap"); - gs->bpixmap = gdk_pixmap_new(gs->pstarget, gs->width, gs->height, -1); - - gdk_draw_rectangle(gs->bpixmap, fill, TRUE, - 0, 0, gs->width, gs->height); - } - else { - gdk_draw_rectangle(gs->pstarget, fill, TRUE, - 0, 0, gs->width, gs->height); - } - gdk_gc_unref(fill); - - gdk_flush(); - } - } - -#ifdef HAVE_LOCALE_H - /* gs needs floating point parameters with '.' as decimal point - * while some (european) locales use ',' instead, so we set the - * locale for this snprintf to "C". - */ - savelocale = setlocale(LC_NUMERIC, "C"); -#endif - - g_snprintf(buf, 1024, "%ld %d %d %d %d %d %f %f %d %d %d %d", - 0L, - orientation * 90, - gs->llx, - gs->lly, - gs->urx, - gs->ury, - gs->xdpi * gs->zoom_factor, - gs->ydpi * gs->zoom_factor, - gs->left_margin, - gs->bottom_margin, gs->right_margin, gs->top_margin); - - LOG ("GS property %s", buf); - -#ifdef HAVE_LOCALE_H - setlocale(LC_NUMERIC, savelocale); -#endif - gdk_property_change(gs->pstarget, - gs_class->gs_atom, - gs_class->string_atom, - 8, GDK_PROP_MODE_REPLACE, buf, strlen(buf)); - gdk_flush(); + GdkGC *fill; + GdkColor white = { 0, 0xFFFF, 0xFFFF, 0xFFFF }; /* pixel, r, g, b */ + GdkColormap *colormap; + double width, height; + int pixmap_width, pixmap_height; + + ev_document_get_page_size (EV_DOCUMENT (gs), page, &width, &height); + + if (rotation == 90 || rotation == 270) { + pixmap_height = width * scale + 0.5; + pixmap_width = height * scale + 0.5; + } else { + pixmap_width = width * scale + 0.5; + pixmap_height = height * scale + 0.5; + } + + if(gs->bpixmap) { + int w, h; + + gdk_drawable_get_size (gs->bpixmap, &w, &h); + + if (pixmap_width != w || h != pixmap_height) { + gdk_drawable_unref (gs->bpixmap); + gs->bpixmap = NULL; + stop_interpreter (gs); + } + } + + if (!gs->bpixmap) { + LOG ("Create pixmap"); + + fill = gdk_gc_new (gs->pstarget); + colormap = gdk_drawable_get_colormap (gs->pstarget); + gdk_color_alloc (colormap, &white); + gdk_gc_set_foreground (fill, &white); + gs->bpixmap = gdk_pixmap_new (gs->pstarget, pixmap_width, + pixmap_height, -1); + gdk_draw_rectangle (gs->bpixmap, fill, TRUE, + 0, 0, pixmap_width, pixmap_height); + } +} + +#define DEFAULT_PAGE_SIZE 1 + +static void +get_page_box (PSDocument *gs, int page, int *urx, int *ury, int *llx, int *lly) +{ + gint new_llx = 0; + gint new_lly = 0; + gint new_urx = 0; + gint new_ury = 0; + GtkGSPaperSize *papersizes = gtk_gs_defaults_get_paper_sizes (); + int new_pagesize = -1; + + g_return_if_fail (PS_IS_DOCUMENT (gs)); + + if (new_pagesize == -1) { + new_pagesize = DEFAULT_PAGE_SIZE; + if (gs->doc) { + /* If we have a document: + * We use -- the page size (if specified) + * or the doc. size (if specified) + * or the page bbox (if specified) + * or the bounding box + */ + if ((page >= 0) && (gs->doc->numpages > page) && + (gs->doc->pages) && (gs->doc->pages[page].size)) { + new_pagesize = gs->doc->pages[page].size - gs->doc->size; + } else if (gs->doc->default_page_size != NULL) { + new_pagesize = gs->doc->default_page_size - gs->doc->size; + } else if ((page >= 0) && + (gs->doc->numpages > page) && + (gs->doc->pages) && + (gs->doc->pages[page].boundingbox[URX] > + gs->doc->pages[page].boundingbox[LLX]) && + (gs->doc->pages[page].boundingbox[URY] > + gs->doc->pages[page].boundingbox[LLY])) { + new_pagesize = -1; + } else if ((gs->doc->boundingbox[URX] > gs->doc->boundingbox[LLX]) && + (gs->doc->boundingbox[URY] > gs->doc->boundingbox[LLY])) { + new_pagesize = -1; + } + } + } + + /* Compute bounding box */ + if (gs->doc && (gs->doc->epsf || new_pagesize == -1)) { /* epsf or bbox */ + if ((page >= 0) && + (gs->doc->pages) && + (gs->doc->pages[page].boundingbox[URX] > + gs->doc->pages[page].boundingbox[LLX]) && + (gs->doc->pages[page].boundingbox[URY] > + gs->doc->pages[page].boundingbox[LLY])) { + /* use page bbox */ + new_llx = gs->doc->pages[page].boundingbox[LLX]; + new_lly = gs->doc->pages[page].boundingbox[LLY]; + new_urx = gs->doc->pages[page].boundingbox[URX]; + new_ury = gs->doc->pages[page].boundingbox[URY]; + } else if ((gs->doc->boundingbox[URX] > gs->doc->boundingbox[LLX]) && + (gs->doc->boundingbox[URY] > gs->doc->boundingbox[LLY])) { + /* use doc bbox */ + new_llx = gs->doc->boundingbox[LLX]; + new_lly = gs->doc->boundingbox[LLY]; + new_urx = gs->doc->boundingbox[URX]; + new_ury = gs->doc->boundingbox[URY]; + } + } else { + if (new_pagesize < 0) + new_pagesize = DEFAULT_PAGE_SIZE; + new_llx = new_lly = 0; + if (gs->doc && gs->doc->size && + (new_pagesize < gs->doc->numsizes)) { + new_urx = gs->doc->size[new_pagesize].width; + new_ury = gs->doc->size[new_pagesize].height; + } else { + new_urx = papersizes[new_pagesize].width; + new_ury = papersizes[new_pagesize].height; + } + } + + if (new_urx <= new_llx) + new_urx = papersizes[12].width; + if (new_ury <= new_lly) + new_ury = papersizes[12].height; + + *urx = new_urx; + *ury = new_ury; + *llx = new_llx; + *lly = new_lly; } static void -close_pipe(int p[2]) +setup_page (PSDocument *gs, int page, double scale, int rotation) { - if(p[0] != -1) - close(p[0]); - if(p[1] != -1) - close(p[1]); + gchar *buf; + char scaled_xdpi[G_ASCII_DTOSTR_BUF_SIZE]; + char scaled_ydpi[G_ASCII_DTOSTR_BUF_SIZE]; + int urx, ury, llx, lly; + + LOG ("Setup the page"); + + get_page_box (gs, page, &urx, &ury, &llx, &lly); + g_ascii_dtostr (scaled_xdpi, G_ASCII_DTOSTR_BUF_SIZE, get_xdpi (gs) * scale); + g_ascii_dtostr (scaled_ydpi, G_ASCII_DTOSTR_BUF_SIZE, get_ydpi (gs) * scale); + + buf = g_strdup_printf ("%ld %d %d %d %d %d %s %s %d %d %d %d", + 0L, rotation, llx, lly, urx, ury, + scaled_xdpi, scaled_ydpi, + 0, 0, 0, 0); + LOG ("GS property %s", buf); + + gdk_property_change (gs->pstarget, gs_class->gs_atom, gs_class->string_atom, + 8, GDK_PROP_MODE_REPLACE, (guchar *)buf, strlen(buf)); + g_free (buf); + + gdk_flush (); +} + +static void +close_pipe (int p[2]) +{ + if (p[0] != -1) { + close (p[0]); + } + if (p[1] != -1) { + close (p[1]); + } } static gboolean -is_interpreter_ready(PSDocument * gs) +is_interpreter_ready (PSDocument *gs) { - return (gs->interpreter_pid != -1 && !gs->busy && gs->ps_input == NULL); + return (gs->interpreter_pid != -1 && !gs->busy && gs->ps_input == NULL); } static void -interpreter_failed(PSDocument * gs) +output (gpointer data, gint source, GdkInputCondition condition) { - stop_interpreter(gs); + char buf[MAX_BUFSIZE + 1]; + guint bytes = 0; + PSDocument *gs = PS_DOCUMENT(data); + + if (source == gs->interpreter_output) { + bytes = read(gs->interpreter_output, buf, MAX_BUFSIZE); + if (bytes == 0) { /* EOF occurred */ + close (gs->interpreter_output); + gs->interpreter_output = -1; + gdk_input_remove (gs->interpreter_output_id); + return; + } else if (bytes == -1) { + /* trouble... */ + interpreter_failed (gs, NULL); + return; + } + if (gs->interpreter_err == -1) { + interpreter_failed (gs, NULL); + } + } else if (source == gs->interpreter_err) { + bytes = read (gs->interpreter_err, buf, MAX_BUFSIZE); + if (bytes == 0) { /* EOF occurred */ + close (gs->interpreter_err); + gs->interpreter_err = -1; + gdk_input_remove (gs->interpreter_error_id); + return; + } else if (bytes == -1) { + /* trouble... */ + interpreter_failed (gs, NULL); + return; + } + if (gs->interpreter_output == -1) { + interpreter_failed(gs, NULL); + } + } + + if (bytes > 0) { + buf[bytes] = '\0'; + printf ("%s", buf); + } } static void -output(gpointer data, gint source, GdkInputCondition condition) +catchPipe (int i) { - char buf[MAX_BUFSIZE + 1], *msg; - guint bytes = 0; - PSDocument *gs = PS_DOCUMENT(data); - - if(source == gs->interpreter_output) { - bytes = read(gs->interpreter_output, buf, MAX_BUFSIZE); - if(bytes == 0) { /* EOF occurred */ - close(gs->interpreter_output); - gs->interpreter_output = -1; - gdk_input_remove(gs->interpreter_output_id); - return; - } - else if(bytes == -1) { - /* trouble... */ - interpreter_failed(gs); - return; - } - if(gs->interpreter_err == -1) { - stop_interpreter(gs); - } - } - else if(source == gs->interpreter_err) { - bytes = read(gs->interpreter_err, buf, MAX_BUFSIZE); - if(bytes == 0) { /* EOF occurred */ - close(gs->interpreter_err); - gs->interpreter_err = -1; - gdk_input_remove(gs->interpreter_error_id); - return; - } - else if(bytes == -1) { - /* trouble... */ - interpreter_failed(gs); - return; - } - if(gs->interpreter_output == -1) { - stop_interpreter(gs); - } - } - if(bytes > 0) { - buf[bytes] = '\0'; - msg = g_strdup(buf); - ps_document_emit_error_msg (gs, msg); - } + broken_pipe = True; } static void input(gpointer data, gint source, GdkInputCondition condition) { - PSDocument *gs = PS_DOCUMENT(data); - int bytes_written; - void (*oldsig) (int); - oldsig = signal(SIGPIPE, catchPipe); - - do { - if(gs->buffer_bytes_left == 0) { - /* Get a new section if required */ - if(gs->ps_input && gs->bytes_left == 0) { - struct record_list *ps_old = gs->ps_input; - gs->ps_input = ps_old->next; - if(ps_old->close && NULL != ps_old->fp) - fclose(ps_old->fp); - g_free((char *) ps_old); - } - /* Have to seek at the beginning of each section */ - if(gs->ps_input && gs->ps_input->seek_needed) { - fseek(gs->ps_input->fp, gs->ps_input->begin, SEEK_SET); - gs->ps_input->seek_needed = FALSE; - gs->bytes_left = gs->ps_input->len; - } - - if(gs->bytes_left > MAX_BUFSIZE) { - gs->buffer_bytes_left = - fread(gs->input_buffer, sizeof(char), MAX_BUFSIZE, gs->ps_input->fp); - } - else if(gs->bytes_left > 0) { - gs->buffer_bytes_left = - fread(gs->input_buffer, - sizeof(char), gs->bytes_left, gs->ps_input->fp); - } - else { - gs->buffer_bytes_left = 0; - } - if(gs->bytes_left > 0 && gs->buffer_bytes_left == 0) { - interpreter_failed(gs); /* Error occurred */ - } - gs->input_buffer_ptr = gs->input_buffer; - gs->bytes_left -= gs->buffer_bytes_left; - } - - if(gs->buffer_bytes_left > 0) { - /* g_print (" writing: %s\n",gs->input_buffer_ptr); */ - - bytes_written = write(gs->interpreter_input, - gs->input_buffer_ptr, gs->buffer_bytes_left); - - if(broken_pipe) { - ps_document_emit_error_msg(gs, g_strdup(_("Broken pipe."))); - broken_pipe = FALSE; - interpreter_failed(gs); - } - else if(bytes_written == -1) { - if((errno != EWOULDBLOCK) && (errno != EAGAIN)) { - interpreter_failed(gs); /* Something bad happened */ - } - } - else { - gs->buffer_bytes_left -= bytes_written; - gs->input_buffer_ptr += bytes_written; - } - } - } - while(gs->ps_input && gs->buffer_bytes_left == 0); - - signal(SIGPIPE, oldsig); - - if(gs->ps_input == NULL && gs->buffer_bytes_left == 0) { - if(gs->interpreter_input_id != 0) { - gdk_input_remove(gs->interpreter_input_id); - gs->interpreter_input_id = 0; - } - } + PSDocument *gs = PS_DOCUMENT(data); + int bytes_written; + void (*oldsig) (int); + oldsig = signal(SIGPIPE, catchPipe); + + LOG ("Input"); + + do { + if (gs->buffer_bytes_left == 0) { + /* Get a new section if required */ + if (gs->ps_input && gs->bytes_left == 0) { + struct record_list *ps_old = gs->ps_input; + gs->ps_input = ps_old->next; + if (ps_old->close && NULL != ps_old->fp) + fclose (ps_old->fp); + g_free (ps_old); + } + + /* Have to seek at the beginning of each section */ + if (gs->ps_input && gs->ps_input->seek_needed) { + fseek (gs->ps_input->fp, gs->ps_input->begin, SEEK_SET); + gs->ps_input->seek_needed = FALSE; + gs->bytes_left = gs->ps_input->len; + } + + if (gs->bytes_left > MAX_BUFSIZE) { + gs->buffer_bytes_left = fread (gs->input_buffer, sizeof(char), + MAX_BUFSIZE, gs->ps_input->fp); + } else if (gs->bytes_left > 0) { + gs->buffer_bytes_left = fread (gs->input_buffer, sizeof(char), + gs->bytes_left, gs->ps_input->fp); + } else { + gs->buffer_bytes_left = 0; + } + if (gs->bytes_left > 0 && gs->buffer_bytes_left == 0) { + interpreter_failed (gs, NULL); /* Error occurred */ + } + gs->input_buffer_ptr = gs->input_buffer; + gs->bytes_left -= gs->buffer_bytes_left; + } + + if (gs->buffer_bytes_left > 0) { + bytes_written = write (gs->interpreter_input, + gs->input_buffer_ptr, gs->buffer_bytes_left); + + if (broken_pipe) { + interpreter_failed (gs, g_strdup(_("Broken pipe."))); + broken_pipe = FALSE; + interpreter_failed (gs, NULL); + } else if (bytes_written == -1) { + if ((errno != EWOULDBLOCK) && (errno != EAGAIN)) { + interpreter_failed (gs, NULL); /* Something bad happened */ + } + } else { + gs->buffer_bytes_left -= bytes_written; + gs->input_buffer_ptr += bytes_written; + } + } + } while (gs->ps_input && gs->buffer_bytes_left == 0); + + signal (SIGPIPE, oldsig); + + if (gs->ps_input == NULL && gs->buffer_bytes_left == 0) { + if (gs->interpreter_input_id != 0) { + gdk_input_remove (gs->interpreter_input_id); + gs->interpreter_input_id = 0; + } + } } static int -start_interpreter(PSDocument * gs) +start_interpreter (PSDocument *gs) { - int std_in[2] = { -1, -1 }; /* pipe to interp stdin */ - int std_out[2]; /* pipe from interp stdout */ - int std_err[2]; /* pipe from interp stderr */ - - LOG ("Start the interpreter"); + int std_in[2] = { -1, -1 }; /* pipe to interp stdin */ + int std_out[2]; /* pipe from interp stdout */ + int std_err[2]; /* pipe from interp stderr */ #define NUM_ARGS 100 #define NUM_GS_ARGS (NUM_ARGS - 20) #define NUM_ALPHA_ARGS 10 - char *argv[NUM_ARGS], *dir, *gv_env; - char **gs_args, **alpha_args = NULL; - int argc = 0, i; - - if(!gs->gs_filename) - return 0; - - stop_interpreter(gs); - - if(gs->disable_start == TRUE) - return 0; - - /* set up the args... */ - gs_args = g_strsplit(gtk_gs_defaults_get_interpreter_cmd(), " ", NUM_GS_ARGS); - for(i = 0; i < NUM_GS_ARGS && gs_args[i]; i++, argc++) - argv[argc] = gs_args[i]; - - if(gs->antialiased) { - if(strlen(gtk_gs_defaults_get_alpha_parameters()) == 0) - alpha_args = g_strsplit(ALPHA_PARAMS, " ", NUM_ALPHA_ARGS); - else - alpha_args = g_strsplit(gtk_gs_defaults_get_alpha_parameters(), - " ", NUM_ALPHA_ARGS); - for(i = 0; i < NUM_ALPHA_ARGS && alpha_args[i]; i++, argc++) - argv[argc] = alpha_args[i]; - } - else - argv[argc++] = "-sDEVICE=x11"; - argv[argc++] = "-dNOPAUSE"; - argv[argc++] = "-dQUIET"; - /* I assume we do _not_ want to change this... (: */ - argv[argc++] = "-dSAFER"; - - /* set up the pipes */ - if(gs->send_filename_to_gs) { - argv[argc++] = PS_DOCUMENT_GET_PS_FILE(gs); - argv[argc++] = "-c"; - argv[argc++] = "quit"; - } - else - argv[argc++] = "-"; - - argv[argc++] = NULL; - - if(!gs->reading_from_pipe && !gs->send_filename_to_gs) { - if(pipe(std_in) == -1) { - g_critical("Unable to open pipe to Ghostscript."); - return -1; - } - } - if(pipe(std_out) == -1) { - close_pipe(std_in); - return -1; - } - if(pipe(std_err) == -1) { - close_pipe(std_in); - close_pipe(std_out); - return -1; - } - - gv_env = g_strdup_printf("GHOSTVIEW=%ld %ld", - gdk_x11_drawable_get_xid(gs->pstarget), - gdk_x11_drawable_get_xid(gs->bpixmap)); - - LOG ("Launching ghostview with env %s", gv_env); - - gs->busy = TRUE; - gs->interpreter_pid = fork(); - switch (gs->interpreter_pid) { - case -1: /* error */ - close_pipe(std_in); - close_pipe(std_out); - close_pipe(std_err); - return -2; - break; - case 0: /* child */ - close(std_out[0]); - dup2(std_out[1], 1); - close(std_out[1]); - - close(std_err[0]); - dup2(std_err[1], 2); - close(std_err[1]); - - if(!gs->reading_from_pipe) { - if(gs->send_filename_to_gs) { - int stdinfd; - /* just in case gs tries to read from stdin */ - stdinfd = open("/dev/null", O_RDONLY); - if(stdinfd != 0) { - dup2(stdinfd, 0); - close(stdinfd); - } - } - else { - close(std_in[1]); - dup2(std_in[0], 0); - close(std_in[0]); - } - } - - putenv(gv_env); - - /* change to directory where the input file is. This helps - * with postscript-files which include other files using - * a relative path */ - dir = g_path_get_dirname(gs->gs_filename); - chdir(dir); - g_free(dir); - - execvp(argv[0], argv); - - /* Notify error */ - g_print("Unable to execute [%s]\n", argv[0]); - g_strfreev(gs_args); - g_free(gv_env); - if(alpha_args) - g_strfreev(alpha_args); - _exit(1); - break; - default: /* parent */ - if(!gs->send_filename_to_gs && !gs->reading_from_pipe) { - int result; - close(std_in[0]); - /* use non-blocking IO for pipe to ghostscript */ - result = fcntl(std_in[1], F_GETFL, 0); - fcntl(std_in[1], F_SETFL, result | O_NONBLOCK); - gs->interpreter_input = std_in[1]; - } - else { - gs->interpreter_input = -1; - } - close(std_out[1]); - gs->interpreter_output = std_out[0]; - close(std_err[1]); - gs->interpreter_err = std_err[0]; - gs->interpreter_output_id = - gdk_input_add(std_out[0], GDK_INPUT_READ, output, gs); - gs->interpreter_error_id = - gdk_input_add(std_err[0], GDK_INPUT_READ, output, gs); - break; - } - return TRUE; + char *argv[NUM_ARGS], *dir, *gv_env, *gs_path; + char **gs_args, **alpha_args = NULL; + int argc = 0, i; + + LOG ("Start the interpreter"); + + if(!gs->gs_filename) + return 0; + + stop_interpreter(gs); + + /* set up the args... */ + gs_path = g_find_program_in_path ("gs"); + gs_args = g_strsplit (gs_path, " ", NUM_GS_ARGS); + g_free (gs_path); + for(i = 0; i < NUM_GS_ARGS && gs_args[i]; i++, argc++) { + argv[argc] = gs_args[i]; + } + + alpha_args = g_strsplit (ALPHA_PARAMS, " ", NUM_ALPHA_ARGS); + for(i = 0; i < NUM_ALPHA_ARGS && alpha_args[i]; i++, argc++) { + argv[argc] = alpha_args[i]; + } + + argv[argc++] = "-dNOPAUSE"; + argv[argc++] = "-dQUIET"; + argv[argc++] = "-dSAFER"; + + /* set up the pipes */ + if (gs->send_filename_to_gs) { + argv[argc++] = PS_DOCUMENT_GET_PS_FILE (gs); + argv[argc++] = "-c"; + argv[argc++] = "quit"; + } else { + argv[argc++] = "-"; + } + + argv[argc++] = NULL; + + if (!gs->reading_from_pipe && !gs->send_filename_to_gs) { + if (pipe (std_in) == -1) { + g_critical ("Unable to open pipe to Ghostscript."); + return -1; + } + } + + if (pipe (std_out) == -1) { + close_pipe (std_in); + return -1; + } + + if (pipe(std_err) == -1) { + close_pipe (std_in); + close_pipe (std_out); + return -1; + } + + gv_env = g_strdup_printf ("GHOSTVIEW=%ld %ld", + gdk_x11_drawable_get_xid (gs->pstarget), + gdk_x11_drawable_get_xid (gs->bpixmap)); + LOG ("Launching ghostview with env %s", gv_env); + + gs->interpreter_pid = fork (); + switch (gs->interpreter_pid) { + case -1: /* error */ + close_pipe (std_in); + close_pipe (std_out); + close_pipe (std_err); + return -2; + break; + case 0: /* child */ + close (std_out[0]); + dup2 (std_out[1], 1); + close (std_out[1]); + + close (std_err[0]); + dup2 (std_err[1], 2); + close (std_err[1]); + + if (!gs->reading_from_pipe) { + if (gs->send_filename_to_gs) { + int stdinfd; + /* just in case gs tries to read from stdin */ + stdinfd = open("/dev/null", O_RDONLY); + if (stdinfd != 0) { + dup2(stdinfd, 0); + close(stdinfd); + } + } else { + close (std_in[1]); + dup2 (std_in[0], 0); + close (std_in[0]); + } + } + + putenv(gv_env); + + /* change to directory where the input file is. This helps + * with postscript-files which include other files using + * a relative path */ + dir = g_path_get_dirname (gs->gs_filename); + chdir (dir); + g_free (dir); + + execvp (argv[0], argv); + + /* Notify error */ + g_critical ("Unable to execute [%s]\n", argv[0]); + g_strfreev (gs_args); + g_free (gv_env); + g_strfreev (alpha_args); + _exit (1); + break; + default: /* parent */ + if (!gs->send_filename_to_gs && !gs->reading_from_pipe) { + int result; + close (std_in[0]); + /* use non-blocking IO for pipe to ghostscript */ + result = fcntl (std_in[1], F_GETFL, 0); + fcntl (std_in[1], F_SETFL, result | O_NONBLOCK); + gs->interpreter_input = std_in[1]; + } else { + gs->interpreter_input = -1; + } + close (std_out[1]); + + gs->interpreter_output = std_out[0]; + close (std_err[1]); + gs->interpreter_err = std_err[0]; + gs->interpreter_output_id = + gdk_input_add (std_out[0], GDK_INPUT_READ, output, gs); + gs->interpreter_error_id = + gdk_input_add (std_err[0], GDK_INPUT_READ, output, gs); + break; + } + + return TRUE; } static void stop_interpreter(PSDocument * gs) { - if(gs->interpreter_pid > 0) { - int status = 0; - LOG ("Stop the interpreter"); - kill(gs->interpreter_pid, SIGTERM); - while((wait(&status) == -1) && (errno == EINTR)) ; - gs->interpreter_pid = -1; - if(status == 1) { - ps_document_cleanup(gs); - gs->gs_status = _("Interpreter failed."); - } - } - - if(gs->interpreter_input >= 0) { - close(gs->interpreter_input); - gs->interpreter_input = -1; - if(gs->interpreter_input_id != 0) { - gdk_input_remove(gs->interpreter_input_id); - gs->interpreter_input_id = 0; - } - while(gs->ps_input) { - struct record_list *ps_old = gs->ps_input; - gs->ps_input = gs->ps_input->next; - if(ps_old->close && NULL != ps_old->fp) - fclose(ps_old->fp); - g_free((char *) ps_old); - } - } - - if(gs->interpreter_output >= 0) { - close(gs->interpreter_output); - gs->interpreter_output = -1; - if(gs->interpreter_output_id) { - gdk_input_remove(gs->interpreter_output_id); - gs->interpreter_output_id = 0; - } - } - - if(gs->interpreter_err >= 0) { - close(gs->interpreter_err); - gs->interpreter_err = -1; - if(gs->interpreter_error_id) { - gdk_input_remove(gs->interpreter_error_id); - gs->interpreter_error_id = 0; - } - } - - gs->busy = FALSE; + if (gs->interpreter_pid > 0) { + int status = 0; + LOG ("Stop the interpreter"); + kill (gs->interpreter_pid, SIGTERM); + while ((wait(&status) == -1) && (errno == EINTR)); + gs->interpreter_pid = -1; + if (status == 1) { + gs->gs_status = _("Interpreter failed."); + } + } + + if (gs->interpreter_input >= 0) { + close (gs->interpreter_input); + gs->interpreter_input = -1; + if (gs->interpreter_input_id != 0) { + gdk_input_remove(gs->interpreter_input_id); + gs->interpreter_input_id = 0; + } + while (gs->ps_input) { + struct record_list *ps_old = gs->ps_input; + gs->ps_input = gs->ps_input->next; + if (ps_old->close && NULL != ps_old->fp) + fclose (ps_old->fp); + g_free (ps_old); + } + } + + if (gs->interpreter_output >= 0) { + close (gs->interpreter_output); + gs->interpreter_output = -1; + if (gs->interpreter_output_id) { + gdk_input_remove (gs->interpreter_output_id); + gs->interpreter_output_id = 0; + } + } + + if (gs->interpreter_err >= 0) { + close (gs->interpreter_err); + gs->interpreter_err = -1; + if (gs->interpreter_error_id) { + gdk_input_remove (gs->interpreter_error_id); + gs->interpreter_error_id = 0; + } + } + + gs->busy = FALSE; } /* If file exists and is a regular file then return its length, else -1 */ static gint -file_length(const gchar * filename) +file_length (const gchar * filename) { - struct stat stat_rec; + struct stat stat_rec; - if(filename && (stat(filename, &stat_rec) == 0) - && S_ISREG(stat_rec.st_mode)) - return stat_rec.st_size; - else - return -1; + if (filename && (stat (filename, &stat_rec) == 0) && S_ISREG (stat_rec.st_mode)) + return stat_rec.st_size; + else + return -1; } /* Test if file exists, is a regular file and its length is > 0 */ static gboolean file_readable(const char *filename) { - return (file_length(filename) > 0); + return (file_length (filename) > 0); } /* @@ -950,743 +832,343 @@ file_readable(const char *filename) * Return name of input file to use or NULL on error.. */ static gchar * -check_filecompressed(PSDocument * gs) +check_filecompressed (PSDocument * gs) { - FILE *file; - gchar buf[1024]; - gchar *filename, *filename_unc, *filename_err, *cmdline; - const gchar *cmd; - int fd; - - cmd = NULL; - - if((file = fopen(gs->gs_filename, "r")) - && (fread(buf, sizeof(gchar), 3, file) == 3)) { - if((buf[0] == '\037') && ((buf[1] == '\235') || (buf[1] == '\213'))) { - /* file is gzipped or compressed */ - cmd = gtk_gs_defaults_get_ungzip_cmd(); - } - else if(strncmp(buf, "BZh", 3) == 0) { - /* file is compressed with bzip2 */ - cmd = gtk_gs_defaults_get_unbzip2_cmd(); - } - } - if(NULL != file) - fclose(file); - - if(!cmd) - return gs->gs_filename; - - /* do the decompression */ - filename = g_shell_quote(gs->gs_filename); - filename_unc = g_strconcat(g_get_tmp_dir(), "/ggvXXXXXX", NULL); - if((fd = mkstemp(filename_unc)) < 0) { - g_free(filename_unc); - g_free(filename); - return NULL; - } - close(fd); - filename_err = g_strconcat(g_get_tmp_dir(), "/ggvXXXXXX", NULL); - if((fd = mkstemp(filename_err)) < 0) { - g_free(filename_err); - g_free(filename_unc); - g_free(filename); - return NULL; - } - close(fd); - cmdline = g_strdup_printf("%s %s >%s 2>%s", cmd, - filename, filename_unc, filename_err); - if((system(cmdline) == 0) - && file_readable(filename_unc) - && (file_length(filename_err) == 0)) { - /* sucessfully uncompressed file */ - gs->gs_filename_unc = filename_unc; - } - else { - /* report error */ - g_snprintf(buf, 1024, _("Error while decompressing file %s:\n"), - gs->gs_filename); - ps_document_emit_error_msg(gs, buf); - if(file_length(filename_err) > 0) { - FILE *err; - if((err = fopen(filename_err, "r"))) { - /* print file to message window */ - while(fgets(buf, 1024, err)) - ps_document_emit_error_msg(gs, buf); - fclose(err); - } - } - unlink(filename_unc); - g_free(filename_unc); - filename_unc = NULL; - } - unlink(filename_err); - g_free(filename_err); - g_free(cmdline); - g_free(filename); - return filename_unc; -} + FILE *file; + gchar buf[1024]; + gchar *filename, *filename_unc, *filename_err, *cmdline; + const gchar *cmd; + int fd; + + cmd = NULL; + + if ((file = fopen(gs->gs_filename, "r")) && + (fread (buf, sizeof(gchar), 3, file) == 3)) { + if ((buf[0] == '\037') && ((buf[1] == '\235') || (buf[1] == '\213'))) { + /* file is gzipped or compressed */ + cmd = gtk_gs_defaults_get_ungzip_cmd (); + } else if (strncmp (buf, "BZh", 3) == 0) { + /* file is compressed with bzip2 */ + cmd = gtk_gs_defaults_get_unbzip2_cmd (); + } + } -/* - * Check if gs->gs_filename or gs->gs_filename_unc is a pdf file and scan - * pdf file if necessary. - * Set gs->filename_dsc to the name of the dsc file or NULL. - * Error reporting via signal 'interpreter_message'. - */ -static gchar * -check_pdf(PSDocument * gs) -{ - FILE *file; - gchar buf[1024], *filename; - int fd; - - /* use uncompressed file as input if necessary */ - filename = (gs->gs_filename_unc ? gs->gs_filename_unc : gs->gs_filename); - - if((file = fopen(filename, "r")) - && (fread(buf, sizeof(char), 5, file) == 5) - && (strncmp(buf, "%PDF-", 5) == 0)) { - /* we found a PDF file */ - gchar *fname, *filename_dsc, *filename_err, *cmd, *cmdline; - filename_dsc = g_strconcat(g_get_tmp_dir(), "/ggvXXXXXX", NULL); - if((fd = mkstemp(filename_dsc)) < 0) { - return NULL; - } - close(fd); - filename_err = g_strconcat(g_get_tmp_dir(), "/ggvXXXXXX", NULL); - if((fd = mkstemp(filename_err)) < 0) { - g_free(filename_dsc); - return NULL; - } - close(fd); - fname = g_shell_quote(filename); - cmd = g_strdup_printf(gtk_gs_defaults_get_dsc_cmd(), filename_dsc, fname); - g_free(fname); - /* this command (sometimes?) prints error messages to stdout! */ - cmdline = g_strdup_printf("%s >%s 2>&1", cmd, filename_err); - g_free(cmd); - - if((system(cmdline) == 0) && file_readable(filename_dsc)) { - - /* success */ - filename = gs->gs_filename_dsc = filename_dsc; - - if(file_length(filename_err) > 0) { - gchar *err_msg = " "; - GtkWidget *dialog; - FILE *err; - GdkColor color; - - if((err = fopen(filename_err, "r"))) { - - /* print the content of the file to a message box */ - while(fgets(buf, 1024, err)) - err_msg = g_strconcat(err_msg, buf, NULL); - - /* FIXME The dialog is not yet set to modal, difficult to - * get the parent of the dialog box here - */ - - dialog = gtk_message_dialog_new(NULL, - GTK_DIALOG_MODAL, - GTK_MESSAGE_WARNING, - GTK_BUTTONS_OK, - ("There was an error while scaning the file: %s \n%s"), - gs->gs_filename, err_msg); - - gdk_color_parse("white", &color); - gtk_widget_modify_bg(GTK_WIDGET(dialog), GTK_STATE_NORMAL, &color); - - g_signal_connect(G_OBJECT(dialog), "response", - G_CALLBACK(gtk_widget_destroy), NULL); - - gtk_window_set_resizable(GTK_WINDOW(dialog), FALSE); - gtk_widget_show(dialog); - g_free(err_msg); - } - } - - } - else { - /* report error */ - g_snprintf(buf, 1024, - _("Error while converting pdf file %s:\n"), filename); - ps_document_emit_error_msg(gs, buf); - - if(file_length(filename_err) > 0) { - FILE *err; - if((err = fopen(filename_err, "r"))) { - /* print file to message window */ - while(fgets(buf, 1024, err)) - ps_document_emit_error_msg(gs, buf); - } - } - unlink(filename_dsc); - g_free(filename_dsc); - filename = NULL; - } - unlink(filename_err); - g_free(filename_err); - g_free(cmdline); - } - if(NULL != file) - fclose(file); - return filename; -} + if (NULL != file) + fclose(file); -#ifdef BROKEN_XINERAMA_PATCH_THAT_SHOULD_NOT_BE_USED -/* never mind this patch: a properly working X server should take care of - calculating the proper values. */ -static float -compute_xdpi(void) -{ -# ifndef HAVE_XINERAMA - return 25.4 * gdk_screen_width() / gdk_screen_width_mm(); -# else - Display *dpy; - dpy = (Display *) GDK_DISPLAY(); - if(XineramaIsActive(dpy)) { - int num_heads; - XineramaScreenInfo *head_info; - head_info = (XineramaScreenInfo *) XineramaQueryScreens(dpy, &num_heads); - /* fake it with dimensions of the first head for now */ - return 25.4 * head_info[0].width / gdk_screen_width_mm(); - } - else { - return 25.4 * gdk_screen_width() / gdk_screen_width_mm(); - } -# endif - /* HAVE_XINERAMA */ -} + if (!cmd) + return gs->gs_filename; -static float -compute_ydpi(void) -{ -# ifndef HAVE_XINERAMA - return 25.4 * gdk_screen_height() / gdk_screen_height_mm(); -# else - Display *dpy; - dpy = (Display *) GDK_DISPLAY(); - if(XineramaIsActive(dpy)) { - int num_heads; - XineramaScreenInfo *head_info; - head_info = (XineramaScreenInfo *) XineramaQueryScreens(dpy, &num_heads); - /* fake it with dimensions of the first head for now */ - return 25.4 * head_info[0].height / gdk_screen_height_mm(); - } - else { - return 25.4 * gdk_screen_height() / gdk_screen_height_mm(); - } -# endif - /* HAVE_XINERAMA */ -} -#else -static float -compute_xdpi(void) -{ - return 25.4 * gdk_screen_width() / gdk_screen_width_mm(); -} + /* do the decompression */ + filename = g_shell_quote (gs->gs_filename); + filename_unc = g_strconcat (g_get_tmp_dir (), "/evinceXXXXXX", NULL); + if ((fd = mkstemp (filename_unc)) < 0) { + g_free (filename_unc); + g_free (filename); + return NULL; + } + close (fd); + + filename_err = g_strconcat (g_get_tmp_dir (), "/evinceXXXXXX", NULL); + if ((fd = mkstemp(filename_err)) < 0) { + g_free (filename_err); + g_free (filename_unc); + g_free (filename); + return NULL; + } + close (fd); + + cmdline = g_strdup_printf ("%s %s >%s 2>%s", cmd, + filename, filename_unc, filename_err); + if (system (cmdline) == 0 && + file_readable (filename_unc) && + file_length (filename_err) == 0) { + /* sucessfully uncompressed file */ + gs->gs_filename_unc = filename_unc; + } else { + gchar *filename_dsp; + gchar *msg; + + /* report error */ + filename_dsp = g_filename_display_name (gs->gs_filename); + msg = g_strdup_printf (_("Error while decompressing file %s:\n"), filename_dsp); + g_free (filename_dsp); + + interpreter_failed (gs, msg); + g_free (msg); + unlink (filename_unc); + g_free (filename_unc); + filename_unc = NULL; + } -static float -compute_ydpi(void) -{ - return 25.4 * gdk_screen_height() / gdk_screen_height_mm(); -} -#endif /* BROKEN_XINERAMA_PATCH_THAT_SHOULD_NOT_BE_USED */ + unlink (filename_err); + g_free (filename_err); + g_free (cmdline); + g_free (filename); -/* Compute new size of window, sets xdpi and ydpi if necessary. - * returns True if new window size is different */ -static gboolean -compute_size(PSDocument * gs) -{ - guint new_width = 1; - guint new_height = 1; - gboolean change = FALSE; - gint orientation; - - /* width and height can be changed, calculate window size according */ - /* to xpdi and ydpi */ - orientation = ps_document_get_orientation(gs); - - switch (orientation) { - case GTK_GS_ORIENTATION_PORTRAIT: - case GTK_GS_ORIENTATION_UPSIDEDOWN: - new_width = (gs->urx - gs->llx) / 72.0 * gs->xdpi + 0.5; - new_height = (gs->ury - gs->lly) / 72.0 * gs->ydpi + 0.5; - break; - case GTK_GS_ORIENTATION_LANDSCAPE: - case GTK_GS_ORIENTATION_SEASCAPE: - new_width = (gs->ury - gs->lly) / 72.0 * gs->xdpi + 0.5; - new_height = (gs->urx - gs->llx) / 72.0 * gs->ydpi + 0.5; - break; - } - - change = (new_width != gs->width * gs->zoom_factor) - || (new_height != gs->height * gs->zoom_factor); - gs->width = (gint) (new_width * gs->zoom_factor); - gs->height = (gint) (new_height * gs->zoom_factor); - - return (change); + return filename_unc; } static gint -ps_document_enable_interpreter(PSDocument * gs) +ps_document_enable_interpreter(PSDocument *gs) { - g_return_val_if_fail(gs != NULL, FALSE); - g_return_val_if_fail(GTK_IS_GS(gs), FALSE); + g_return_val_if_fail (PS_IS_DOCUMENT (gs), FALSE); - if(!gs->gs_filename) - return 0; + if (!gs->gs_filename) + return 0; - gs->disable_start = FALSE; - - return start_interpreter(gs); + return start_interpreter (gs); } -/* publicly accessible functions */ - -GType -ps_document_get_type(void) +static gboolean +document_load (PSDocument *gs, const gchar *fname) { - static GType gs_type = 0; - if(!gs_type) { - GTypeInfo gs_info = { - sizeof(PSDocumentClass), - (GBaseInitFunc) NULL, - (GBaseFinalizeFunc) NULL, - (GClassInitFunc) ps_document_class_init, - (GClassFinalizeFunc) NULL, - NULL, /* class_data */ - sizeof(PSDocument), - 0, /* n_preallocs */ - (GInstanceInitFunc) ps_document_init - }; - - static const GInterfaceInfo document_info = - { - (GInterfaceInitFunc) ps_document_document_iface_init, - NULL, - NULL - }; - - gs_type = g_type_register_static(G_TYPE_OBJECT, - "PSDocument", &gs_info, 0); - - g_type_add_interface_static (gs_type, - EV_TYPE_DOCUMENT, - &document_info); - } - return gs_type; + g_return_val_if_fail (PS_IS_DOCUMENT(gs), FALSE); + LOG ("Load the document"); -} + if (fname == NULL) { + gs->gs_status = ""; + return FALSE; + } -/* - * Show error message -> send signal "interpreter_message" - */ -static void -ps_document_emit_error_msg(PSDocument * gs, const gchar * msg) -{ - gdk_pointer_ungrab(GDK_CURRENT_TIME); - if(strstr(msg, "Error:")) { - gs->gs_status = _("File is not a valid PostScript document."); - ps_document_cleanup(gs); - } -} + /* prepare this document */ + gs->structured_doc = FALSE; + gs->send_filename_to_gs = TRUE; + gs->gs_filename = g_strdup (fname); + + if ((gs->reading_from_pipe = (strcmp (fname, "-") == 0))) { + gs->send_filename_to_gs = FALSE; + } else { + /* + * We need to make sure that the file is loadable/exists! + * otherwise we want to exit without loading new stuff... + */ + gchar *filename = NULL; + + if (!file_readable(fname)) { + gchar *filename_dsp; + gchar *msg; + + filename_dsp = g_filename_display_name (fname); + msg = g_strdup_printf (_("Cannot open file %s.\n"), filename_dsp); + g_free (filename_dsp); + + interpreter_failed (gs, msg); + g_free (msg); + gs->gs_status = _("File is not readable."); + } else { + filename = check_filecompressed(gs); + } + + if (!filename || (gs->gs_psfile = fopen(filename, "r")) == NULL) { + interpreter_failed (gs, NULL); + return FALSE; + } + + /* we grab the vital statistics!!! */ + gs->doc = psscan(gs->gs_psfile, TRUE, filename); + + if ((!gs->doc->epsf && gs->doc->numpages > 0) || + (gs->doc->epsf && gs->doc->numpages > 1)) { + gs->structured_doc = TRUE; + gs->send_filename_to_gs = FALSE; + } + } -static gboolean -document_load(PSDocument * gs, const gchar * fname) -{ - g_return_val_if_fail(gs != NULL, FALSE); - g_return_val_if_fail(GTK_IS_GS(gs), FALSE); - - LOG ("Load the document"); - - /* clean up previous document */ - ps_document_cleanup(gs); - - if(fname == NULL) { - gs->gs_status = ""; - return FALSE; - } - - /* prepare this document */ - - /* default values: no dsc information available */ - gs->structured_doc = FALSE; - gs->send_filename_to_gs = TRUE; - gs->current_page = -2; - gs->loaded = FALSE; - if(*fname == '/') { - /* an absolute path */ - gs->gs_filename = g_strdup(fname); - } - else { - /* path relative to our cwd: make it absolute */ - gchar *cwd = g_get_current_dir(); - gs->gs_filename = g_strconcat(cwd, "/", fname, NULL); - g_free(cwd); - } - - if((gs->reading_from_pipe = (strcmp(fname, "-") == 0))) { - gs->send_filename_to_gs = FALSE; - } - else { - /* - * We need to make sure that the file is loadable/exists! - * otherwise we want to exit without loading new stuff... - */ - gchar *filename = NULL; - - if(!file_readable(fname)) { - gchar buf[1024]; - g_snprintf(buf, 1024, _("Cannot open file %s.\n"), fname); - ps_document_emit_error_msg(gs, buf); - gs->gs_status = _("File is not readable."); - } - else { - filename = check_filecompressed(gs); - if(filename) - filename = check_pdf(gs); - } - - if(!filename || (gs->gs_psfile = fopen(filename, "r")) == NULL) { - ps_document_cleanup(gs); - return FALSE; - } - - /* we grab the vital statistics!!! */ - gs->doc = psscan(gs->gs_psfile, gs->respect_eof, filename); - - g_object_notify (G_OBJECT (gs), "title"); - - if(gs->doc == NULL) { - /* File does not seem to be a Postscript one */ - gchar buf[1024]; - g_snprintf(buf, 1024, _("Error while scanning file %s\n"), fname); - ps_document_emit_error_msg(gs, buf); - ps_document_cleanup(gs); - gs->gs_status = _("The file is not a PostScript document."); - return FALSE; - } - - if((!gs->doc->epsf && gs->doc->numpages > 0) || - (gs->doc->epsf && gs->doc->numpages > 1)) { - gs->structured_doc = TRUE; - gs->send_filename_to_gs = FALSE; - } - - /* We have to set up the orientation of the document */ - - - /* orientation can only be portrait, and landscape or none. - This is the document default. A document can have - pages in landscape and some in portrait */ - if(gs->override_orientation) { - /* If the orientation should be override... - then gs->orientation has already the correct - value (it was set when the widget was created */ - /* So do nothing */ - - } - else { - /* Otherwise, set the proper orientation for the doc */ - gs->real_orientation = gs->doc->orientation; - } - } - ps_document_set_page_size(gs, -1, gs->current_page); - gs->loaded = TRUE; - - gs->gs_status = _("Document loaded."); - - return gs->loaded; -} + gs->gs_status = _("Document loaded."); + return TRUE; +} static gboolean -ps_document_next_page(PSDocument * gs) +ps_document_next_page (PSDocument *gs) { - XEvent event; - - LOG ("Make ghostscript render next page"); + XEvent event; - g_return_val_if_fail(gs != NULL, FALSE); - g_return_val_if_fail(GTK_IS_GS(gs), FALSE); + LOG ("Make ghostscript render next page"); - if(gs->interpreter_pid == 0) { /* no interpreter active */ - return FALSE; - } + g_return_val_if_fail (PS_IS_DOCUMENT(gs), FALSE); + g_return_val_if_fail (gs->interpreter_pid != 0, FALSE); + g_return_val_if_fail (gs->busy != TRUE, FALSE); - if(gs->busy) { /* interpreter is busy */ - return FALSE; - } + gs->busy = TRUE; - gs->busy = TRUE; + event.xclient.type = ClientMessage; + event.xclient.display = gdk_display; + event.xclient.window = gs->message_window; + event.xclient.message_type = gdk_x11_atom_to_xatom(gs_class->next_atom); + event.xclient.format = 32; - event.xclient.type = ClientMessage; - event.xclient.display = gdk_display; - event.xclient.window = gs->message_window; - event.xclient.message_type = gdk_x11_atom_to_xatom(gs_class->next_atom); - event.xclient.format = 32; + gdk_error_trap_push (); + XSendEvent (gdk_display, gs->message_window, FALSE, 0, &event); + gdk_flush (); + gdk_error_trap_pop (); - gdk_error_trap_push(); - XSendEvent(gdk_display, gs->message_window, FALSE, 0, &event); - gdk_flush(); - gdk_error_trap_pop(); - - return TRUE; + return TRUE; } static gboolean -ps_document_goto_page(PSDocument * gs, gint page) +render_page (PSDocument *gs, int page) { - g_return_val_if_fail(gs != NULL, FALSE); - g_return_val_if_fail(GTK_IS_GS(gs), FALSE); - - LOG ("Go to page %d", page); - - if(!gs->gs_filename) { - return FALSE; - } - - /* range checking... */ - if(page < 0) - page = 0; - - if(gs->structured_doc && gs->doc) { - - LOG ("It's a structured document, let's send one page to gs"); - - if(page >= gs->doc->numpages) - page = gs->doc->numpages - 1; - - if(page == gs->current_page && !gs->changed) - return TRUE; - - gs->current_page = page; - - if(gs->doc->pages[page].orientation != NONE && - !gs->override_orientation && - gs->doc->pages[page].orientation != gs->real_orientation) { - gs->real_orientation = gs->doc->pages[page].orientation; - gs->changed = TRUE; - } - - ps_document_set_page_size(gs, -1, page); - - gs->changed = FALSE; + g_return_val_if_fail(gs != NULL, FALSE); + g_return_val_if_fail(PS_IS_DOCUMENT(gs), FALSE); - if(is_interpreter_ready(gs)) { - ps_document_next_page(gs); - } - else { - ps_document_enable_interpreter(gs); - send_ps(gs, gs->doc->beginprolog, gs->doc->lenprolog, FALSE); - send_ps(gs, gs->doc->beginsetup, gs->doc->lensetup, FALSE); - } - - send_ps(gs, gs->doc->pages[gs->current_page].begin, - gs->doc->pages[gs->current_page].len, FALSE); - } - else { - /* Unstructured document */ - /* In the case of non structured documents, - GS read the PS from the actual file (via command - line. Hence, ggv only send a signal next page. - If ghostview is not running it is usually because - the last page of the file was displayed. In that - case, ggv restarts GS again and the first page is displayed. - */ + if(!gs->gs_filename) { + return FALSE; + } - LOG ("It's an unstructured document, gs will just read the file"); + if (gs->structured_doc && gs->doc) { + LOG ("It's a structured document, let's send one page to gs"); + + if (is_interpreter_ready (gs)) { + ps_document_next_page (gs); + } else { + ps_document_enable_interpreter (gs); + send_ps (gs, gs->doc->beginprolog, gs->doc->lenprolog, FALSE); + send_ps (gs, gs->doc->beginsetup, gs->doc->lensetup, FALSE); + } + + send_ps (gs, gs->doc->pages[page].begin, + gs->doc->pages[page].len, FALSE); + } else { + /* Unstructured document + * + * In the case of non structured documents, + * GS read the PS from the actual file (via command + * line. Hence, ggv only send a signal next page. + * If ghostview is not running it is usually because + * the last page of the file was displayed. In that + * case, ggv restarts GS again and the first page is displayed. + */ + + LOG ("It's an unstructured document, gs will just read the file"); + + if (!is_interpreter_ready (gs)) { + ps_document_enable_interpreter(gs); + } + ps_document_next_page(gs); + } - if(page == gs->current_page && !gs->changed) - return TRUE; + return TRUE; +} - ps_document_set_page_size(gs, -1, page); +static gboolean +ps_document_load (EvDocument *document, + const char *uri, + GError **error) +{ + char *filename; + char *gs_path; + gboolean result; - if(!is_interpreter_ready(gs)) - ps_document_enable_interpreter(gs); + filename = g_filename_from_uri (uri, NULL, error); + if (!filename) + return FALSE; - gs->current_page = page; + gs_path = g_find_program_in_path ("gs"); + if (!gs_path) { + gchar *filename_dsp; + filename_dsp = g_filename_display_name (filename); + g_set_error(error, + G_FILE_ERROR, + G_FILE_ERROR_NOENT, + _("Failed to load document '%s'. Ghostscript interpreter was not found in path"), + filename); + g_free (filename_dsp); + result = FALSE; + } else { + result = document_load (PS_DOCUMENT (document), filename); + if (!result) { + gchar *filename_dsp; + filename_dsp = g_filename_display_name (filename); + + g_set_error (error, G_FILE_ERROR, + G_FILE_ERROR_FAILED, + _("Failed to load document '%s'"), + filename_dsp); + g_free (filename_dsp); + } + g_free (gs_path); + } + g_free (filename); - ps_document_next_page(gs); - } - return TRUE; + return result; } -/* - * set pagesize sets the size from - * if new_pagesize is -1, then it is set to either - * a) the default settings of pageid, if they exist, or if pageid != -1. - * b) the default setting of the document, if it exists. - * c) the default setting of the widget. - * otherwise, the new_pagesize is used as the pagesize - */ static gboolean -ps_document_set_page_size(PSDocument * gs, gint new_pagesize, gint pageid) +save_document (PSDocument *document, const char *filename) { - gint new_llx = 0; - gint new_lly = 0; - gint new_urx = 0; - gint new_ury = 0; - GtkGSPaperSize *papersizes = gtk_gs_defaults_get_paper_sizes(); - - LOG ("Set the page size"); - - g_return_val_if_fail(gs != NULL, FALSE); - g_return_val_if_fail(GTK_IS_GS(gs), FALSE); - - if(new_pagesize == -1) { - if(gs->default_size > 0) - new_pagesize = gs->default_size; - if(!gs->override_size && gs->doc) { - /* If we have a document: - We use -- the page size (if specified) - or the doc. size (if specified) - or the page bbox (if specified) - or the bounding box - */ - if((pageid >= 0) && (gs->doc->numpages > pageid) && - (gs->doc->pages) && (gs->doc->pages[pageid].size)) { - new_pagesize = gs->doc->pages[pageid].size - gs->doc->size; - } - else if(gs->doc->default_page_size != NULL) { - new_pagesize = gs->doc->default_page_size - gs->doc->size; - } - else if((pageid >= 0) && - (gs->doc->numpages > pageid) && - (gs->doc->pages) && - (gs->doc->pages[pageid].boundingbox[URX] > - gs->doc->pages[pageid].boundingbox[LLX]) && - (gs->doc->pages[pageid].boundingbox[URY] > - gs->doc->pages[pageid].boundingbox[LLY])) { - new_pagesize = -1; - } - else if((gs->doc->boundingbox[URX] > gs->doc->boundingbox[LLX]) && - (gs->doc->boundingbox[URY] > gs->doc->boundingbox[LLY])) { - new_pagesize = -1; - } - } - } - - /* Compute bounding box */ - if(gs->doc && ((gs->doc->epsf && !gs->override_size) || new_pagesize == -1)) { /* epsf or bbox */ - if((pageid >= 0) && - (gs->doc->pages) && - (gs->doc->pages[pageid].boundingbox[URX] > - gs->doc->pages[pageid].boundingbox[LLX]) - && (gs->doc->pages[pageid].boundingbox[URY] > - gs->doc->pages[pageid].boundingbox[LLY])) { - /* use page bbox */ - new_llx = gs->doc->pages[pageid].boundingbox[LLX]; - new_lly = gs->doc->pages[pageid].boundingbox[LLY]; - new_urx = gs->doc->pages[pageid].boundingbox[URX]; - new_ury = gs->doc->pages[pageid].boundingbox[URY]; - } - else if((gs->doc->boundingbox[URX] > gs->doc->boundingbox[LLX]) && - (gs->doc->boundingbox[URY] > gs->doc->boundingbox[LLY])) { - /* use doc bbox */ - new_llx = gs->doc->boundingbox[LLX]; - new_lly = gs->doc->boundingbox[LLY]; - new_urx = gs->doc->boundingbox[URX]; - new_ury = gs->doc->boundingbox[URY]; - } - } - else { - if(new_pagesize < 0) - new_pagesize = gs->default_size; - new_llx = new_lly = 0; - if(gs->doc && !gs->override_size && gs->doc->size && - (new_pagesize < gs->doc->numsizes)) { - new_urx = gs->doc->size[new_pagesize].width; - new_ury = gs->doc->size[new_pagesize].height; - } - else { - new_urx = papersizes[new_pagesize].width; - new_ury = papersizes[new_pagesize].height; - } - } - - if(new_urx <= new_llx) - new_urx = papersizes[12].width; - if(new_ury <= new_lly) - new_ury = papersizes[12].height; - - /* If bounding box changed, setup for new size. */ - /* ps_document_disable_interpreter (gs); */ - if((new_llx != gs->llx) || (new_lly != gs->lly) || - (new_urx != gs->urx) || (new_ury != gs->ury)) { - gs->llx = new_llx; - gs->lly = new_lly; - gs->urx = new_urx; - gs->ury = new_ury; - gs->changed = TRUE; - } - - if(gs->changed) { - set_up_page(gs); - return TRUE; - } - - return FALSE; -} + gboolean result = TRUE; + GtkGSDocSink *sink = gtk_gs_doc_sink_new (); + FILE *f, *src_file; + gchar *buf; -static gfloat -ps_document_zoom_to_fit(PSDocument * gs, gboolean fit_width) -{ - gint new_y; - gfloat new_zoom; - guint avail_w, avail_h; + src_file = fopen (PS_DOCUMENT_GET_PS_FILE(document), "r"); + if (src_file) { + struct stat stat_rec; - g_return_val_if_fail(gs != NULL, 0.0); - g_return_val_if_fail(GTK_IS_GS(gs), 0.0); + if (stat (PS_DOCUMENT_GET_PS_FILE(document), &stat_rec) == 0) { + pscopy (src_file, sink, 0, stat_rec.st_size - 1); + } - avail_w = (gs->avail_w > 0) ? gs->avail_w : gs->width; - avail_h = (gs->avail_h > 0) ? gs->avail_h : gs->height; + fclose (src_file); + } + + buf = gtk_gs_doc_sink_get_buffer (sink); + if (buf == NULL) { + return FALSE; + } + + f = fopen (filename, "w"); + if (f) { + fputs (buf, f); + fclose (f); + } else { + result = FALSE; + } - 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; - } + g_free (buf); + gtk_gs_doc_sink_free (sink); + g_free (sink); - return new_zoom; + return result; } -static void -ps_document_set_zoom(PSDocument * gs, gfloat zoom) +static gboolean +save_page_list (PSDocument *document, int *page_list, const char *filename) { - g_return_if_fail(gs != NULL); - g_return_if_fail(GTK_IS_GS(gs)); - - switch (gs->zoom_mode) { - case GTK_GS_ZOOM_FIT_WIDTH: - zoom = ps_document_zoom_to_fit(gs, TRUE); - break; - case GTK_GS_ZOOM_FIT_PAGE: - zoom = ps_document_zoom_to_fit(gs, FALSE); - break; - case GTK_GS_ZOOM_ABSOLUTE: - default: - break; - } - - if(fabs(gs->zoom_factor - zoom) > 0.001) { - gs->zoom_factor = zoom; - set_up_page(gs); - gs->changed = TRUE; - } - - ps_document_goto_page(gs, gs->current_page); + gboolean result = TRUE; + GtkGSDocSink *sink = gtk_gs_doc_sink_new (); + FILE *f; + gchar *buf; + + pscopydoc (sink, PS_DOCUMENT_GET_PS_FILE(document), + document->doc, page_list); + + buf = gtk_gs_doc_sink_get_buffer (sink); + + f = fopen (filename, "w"); + if (f) { + fputs (buf, f); + fclose (f); + } else { + result = FALSE; + } + + g_free (buf); + gtk_gs_doc_sink_free (sink); + g_free (sink); + + return result; } static gboolean -ps_document_load (EvDocument *document, +ps_document_save (EvDocument *document, const char *uri, GError **error) { + PSDocument *ps = PS_DOCUMENT (document); gboolean result; char *filename; @@ -1694,28 +1176,13 @@ ps_document_load (EvDocument *document, if (!filename) return FALSE; - result = document_load (PS_DOCUMENT (document), filename); - if (!result) { - g_set_error (error, G_FILE_ERROR, - G_FILE_ERROR_FAILED, - "Failed to load document '%s'\n", - uri); - } + result = save_document (ps, filename); g_free (filename); return result; } -static gboolean -ps_document_save (EvDocument *document, - const char *uri, - GError **error) -{ - g_warning ("ps_document_save not implemented"); /* FIXME */ - return TRUE; -} - static int ps_document_get_n_pages (EvDocument *document) { @@ -1731,171 +1198,138 @@ ps_document_get_n_pages (EvDocument *document) } static void -ps_document_set_page (EvDocument *document, - int page) +ps_document_get_page_size (EvDocument *document, + int page, + double *width, + double *height) { - ps_document_goto_page (PS_DOCUMENT (document), page); -} + PSDocument *gs = PS_DOCUMENT (document); + int urx, ury, llx, lly; -static int -ps_document_get_page (EvDocument *document) -{ - PSDocument *ps = PS_DOCUMENT (document); + get_page_box (PS_DOCUMENT (document), page, &urx, &ury, &llx, &lly); - g_return_val_if_fail (ps != NULL, -1); + if (width) { + *width = (urx - llx) / 72.0 * get_xdpi (gs) + 0.5; + } - return ps->current_page; + if (height) { + *height = (ury - lly) / 72.0 * get_ydpi (gs) + 0.5; + } } static gboolean -ps_document_widget_event (GtkWidget *widget, GdkEvent *event, gpointer data) +ps_document_can_get_text (EvDocument *document) { - PSDocument *gs = (PSDocument *) data; - - if(event->type != GDK_CLIENT_EVENT) - return FALSE; - - gs->message_window = event->client.data.l[0]; - - if (event->client.message_type == gs_class->page_atom) { - LOG ("GS rendered the document"); - gs->busy = FALSE; - ev_document_changed (EV_DOCUMENT (gs)); - } - - return TRUE; + return FALSE; } static void -ps_document_set_target (EvDocument *document, - GdkDrawable *target) +ps_async_renderer_render_pixbuf (EvAsyncRenderer *renderer, int page, double scale, int rotation) { - PSDocument *gs = PS_DOCUMENT (document); - GtkWidget *widget; - gpointer data; + PSDocument *gs = PS_DOCUMENT (renderer); - gs->pstarget = target; + if (gs->pstarget == NULL) { + gs->target_window = gtk_window_new (GTK_WINDOW_POPUP); + gtk_widget_realize (gs->target_window); + gs->pstarget = gs->target_window->window; - if (gs->pstarget) { - gdk_window_get_user_data (gs->pstarget, &data); - g_return_if_fail (GTK_IS_WIDGET (data)); + g_assert (gs->pstarget != NULL); - widget = GTK_WIDGET (data); - g_signal_connect (widget, "event", - G_CALLBACK (ps_document_widget_event), - document); + g_signal_connect (gs->target_window, "event", + G_CALLBACK (ps_document_widget_event), + gs); } - ps_document_goto_page (gs, gs->current_page); + setup_pixmap (gs, page, scale, rotation); + setup_page (gs, page, scale, rotation); + + render_page (gs, page); } -static void -ps_document_set_scale (EvDocument *document, - double scale) +static EvDocumentInfo * +ps_document_get_info (EvDocument *document) { - ps_document_set_zoom (PS_DOCUMENT (document), scale); + EvDocumentInfo *info; + PSDocument *ps = PS_DOCUMENT (document); + + info = g_new0 (EvDocumentInfo, 1); + info->fields_mask = EV_DOCUMENT_INFO_TITLE | + EV_DOCUMENT_INFO_FORMAT | + EV_DOCUMENT_INFO_CREATOR | + EV_DOCUMENT_INFO_N_PAGES; + info->title = g_strdup (ps->doc->title); + info->format = ps->doc->epsf ? g_strdup (_("Encapsulated PostScript")) + : g_strdup (_("PostScript")); + info->creator = g_strdup (ps->doc->creator); + info->n_pages = ev_document_get_n_pages (document); + + return info; } static void -ps_document_set_page_offset (EvDocument *document, - int x, - int y) +ps_document_document_iface_init (EvDocumentIface *iface) { - PSDocument *gs = PS_DOCUMENT (document); - - gs->page_x_offset = x; - gs->page_y_offset = y; + iface->load = ps_document_load; + iface->save = ps_document_save; + iface->can_get_text = ps_document_can_get_text; + iface->get_n_pages = ps_document_get_n_pages; + iface->get_page_size = ps_document_get_page_size; + iface->get_info = ps_document_get_info; } static void -ps_document_get_page_size (EvDocument *document, - int page, - int *width, - int *height) +ps_async_renderer_iface_init (EvAsyncRendererIface *iface) { - /* Post script documents never vary in size */ - - PSDocument *gs = PS_DOCUMENT (document); - - if (width) { - *width = gs->width; - } - - if (height) { - *height = gs->height; - } + iface->render_pixbuf = ps_async_renderer_render_pixbuf; } static void -ps_document_render (EvDocument *document, - int clip_x, - int clip_y, - int clip_width, - int clip_height) +ps_document_ps_export_begin (EvPSExporter *exporter, const char *filename, + int first_page, int last_page, + double width, double height, gboolean duplex) { - PSDocument *gs = PS_DOCUMENT (document); - GdkRectangle page; - GdkRectangle draw; - GdkGC *gc; + PSDocument *document = PS_DOCUMENT (exporter); - if (gs->pstarget == NULL || - gs->bpixmap == NULL) { - return; + if (document->structured_doc) { + g_free (document->ps_export_pagelist); + + document->ps_export_pagelist = g_new0 (int, document->doc->numpages); } - page.x = gs->page_x_offset; - page.y = gs->page_y_offset; - page.width = gs->width; - page.height = gs->height; - - draw.x = clip_x; - draw.y = clip_y; - draw.width = clip_width; - draw.height = clip_height; - - gc = gdk_gc_new (gs->pstarget); - - gdk_draw_drawable (gs->pstarget, gc, - gs->bpixmap, - draw.x - page.x, draw.y - page.y, - draw.x, draw.y, - draw.width, draw.height); - - LOG ("Copy the internal pixmap: %d %d %d %d %d %d", - draw.x - page.x, draw.y - page.y, - draw.x, draw.y, draw.width, draw.height); - - g_object_unref (gc); + document->ps_export_filename = g_strdup (filename); } -static char * -ps_document_get_text (EvDocument *document, GdkRectangle *rect) +static void +ps_document_ps_export_do_page (EvPSExporter *exporter, EvRenderContext *rc) { - g_warning ("ps_document_get_text not implemented"); /* FIXME ? */ - return NULL; + PSDocument *document = PS_DOCUMENT (exporter); + + if (document->structured_doc) { + document->ps_export_pagelist[rc->page] = 1; + } } -static EvLink * -ps_document_get_link (EvDocument *document, - int x, - int y) +static void +ps_document_ps_export_end (EvPSExporter *exporter) { - return NULL; + PSDocument *document = PS_DOCUMENT (exporter); + + if (!document->structured_doc) { + save_document (document, document->ps_export_filename); + } else { + save_page_list (document, document->ps_export_pagelist, + document->ps_export_filename); + g_free (document->ps_export_pagelist); + g_free (document->ps_export_filename); + document->ps_export_pagelist = NULL; + document->ps_export_filename = NULL; + } } static void -ps_document_document_iface_init (EvDocumentIface *iface) +ps_document_ps_exporter_iface_init (EvPSExporterIface *iface) { - iface->load = ps_document_load; - iface->save = ps_document_save; - iface->get_text = ps_document_get_text; - iface->get_link = ps_document_get_link; - iface->get_n_pages = ps_document_get_n_pages; - iface->set_page = ps_document_set_page; - iface->get_page = ps_document_get_page; - iface->set_scale = ps_document_set_scale; - iface->set_target = ps_document_set_target; - iface->set_page_offset = ps_document_set_page_offset; - iface->get_page_size = ps_document_get_page_size; - iface->render = ps_document_render; + iface->begin = ps_document_ps_export_begin; + iface->do_page = ps_document_ps_export_do_page; + iface->end = ps_document_ps_export_end; }