X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=pdf%2Fxpdf%2Fgpdf.cc;h=05bdad905876f017db24918243fe1aad24710722;hb=e4328aef245464741c6d742bfc5aef4ee579ef23;hp=147222b409aefcbbf3c6f700a18cdd07180137ba;hpb=1e2eb7dcec367363483987cfe528dbb49497579d;p=evince.git diff --git a/pdf/xpdf/gpdf.cc b/pdf/xpdf/gpdf.cc index 147222b4..05bdad90 100644 --- a/pdf/xpdf/gpdf.cc +++ b/pdf/xpdf/gpdf.cc @@ -1,21 +1,25 @@ -//======================================================================== -// -// gpdf.cc -// -// Copyright 1996 Derek B. Noonburg -// Copyright 1999 Michael Meeks. -// Copyright 1999 Miguel de Icaza -// -//======================================================================== - - +/* + * PDF viewer Bonobo container. + * + * Author: + * Michael Meeks + * + */ #include #include #include #include +extern "C" { #define GString G_String #include +#include +#include +#include +#include #undef GString +} +#include +#include #include "gtypes.h" #include "GString.h" #include "parseargs.h" @@ -37,225 +41,572 @@ #include "Error.h" #include "config.h" -GBool printCommands = gFalse; -gint gpdf_debug; poptContext ctx; +gint gpdf_debug=0; -#define DOC_ROOT_MAGIC 0xad3f556d -struct DOC_ROOT { - guint32 magic; - GString *title; - PDFDoc *pdf; - GtkWidget *toplevel; - GtkWidget *table; - GnomeAppBar *appbar; - GtkDrawingArea *area; - GdkPixmap *pixmap; - OutputDev *out; - GdkColor paper; +const struct poptOption gpdf_popt_options [] = { + { "debug", '\0', POPT_ARG_INT, &gpdf_debug, 0, + N_("Enables some debugging functions"), N_("LEVEL") }, + { NULL, '\0', 0, NULL, 0 } }; -DOC_ROOT *hack_global = NULL; +typedef struct _Component Component; +typedef struct _Container Container; +/* NB. there is a 1 to 1 Container -> Component mapping, this + is due to how much MDI sucks; unutterably */ +struct _Container { + GnomeContainer *container; + GnomeUIHandler *uih; + + GnomeViewFrame *active_view_frame; + + GtkWidget *app; + GtkScrolledWindow *scroll; + GtkWidget *view_widget; + Component *component; + gdouble zoom; +}; -static void -crummy_cmd (GtkWidget *widget, DOC_ROOT *tmp) -{ - printf ("Crummy\n"); -} +struct _Component { + Container *container; + GnomeClientSite *client_site; + GnomeViewFrame *view_frame; + GnomeObjectClient *server; +}; -const struct poptOption gpdf_popt_options [] = { - { "debug", '\0', POPT_ARG_INT, &gpdf_debug, 0, - N_("Enables some debugging functions"), N_("LEVEL") }, - { NULL, '\0', 0, NULL, 0 } +GList *containers = NULL; +/* + * Static prototypes. + */ +extern "C" { + static Container *container_new (const char *fname); + static void container_destroy (Container *cont); + static void container_open_cmd (GtkWidget *widget, Container *container); + static void container_close_cmd (GtkWidget *widget, Container *container); + static void container_exit_cmd (void); + static Component *container_activate_component (Container *container, char *component_goad_id); + static void zoom_in_cmd (GtkWidget *widget, Container *container); + static void zoom_out_cmd (GtkWidget *widget, Container *container); + static void zoom_set (Container *container); +} + +/* + * The menus. + */ +static GnomeUIInfo container_file_menu [] = { + GNOMEUIINFO_MENU_OPEN_ITEM (container_open_cmd, NULL), + GNOMEUIINFO_SEPARATOR, + GNOMEUIINFO_MENU_CLOSE_ITEM(container_close_cmd, NULL), + GNOMEUIINFO_SEPARATOR, + GNOMEUIINFO_MENU_EXIT_ITEM (container_exit_cmd, NULL), + GNOMEUIINFO_END }; +static GnomeUIInfo container_menu_zoom [] = { + { GNOME_APP_UI_ITEM, N_("_Zoom in"), + N_("Increase the size of objects in the PDF"), + zoom_in_cmd }, + { GNOME_APP_UI_ITEM, N_("_Zoom out"), + N_("Decrease the size of objects in the PDF"), + zoom_out_cmd }, + GNOMEUIINFO_END +}; -static GnomeUIInfo dummy_menu [] = { - { GNOME_APP_UI_ITEM, N_("_dummy"), - N_("What a dummy!"), crummy_cmd }, +static GnomeUIInfo container_main_menu [] = { + GNOMEUIINFO_MENU_FILE_TREE (container_file_menu), + { GNOME_APP_UI_SUBTREE, N_("_Zoom"), NULL, container_menu_zoom }, GNOMEUIINFO_END }; -static GnomeUIInfo main_menu [] = { - { GNOME_APP_UI_SUBTREE, N_("_Dummy"), NULL, dummy_menu }, +static GnomeUIInfo container_toolbar [] = { + GNOMEUIINFO_ITEM_STOCK ( + N_("Open"), N_("Opens an existing workbook"), + container_open_cmd, GNOME_STOCK_PIXMAP_OPEN), + + GNOMEUIINFO_SEPARATOR, GNOMEUIINFO_END }; -//------------------------------------------------------------------------ -// loadFile / displayPage -//------------------------------------------------------------------------ +extern "C" { + static gboolean + open_pdf (Container *container, const char *name) + { + GnomeObjectClient *object; + GnomeStream *stream; + GNOME_PersistStream persist; + Component *comp; + CORBA_Environment ev; + + g_return_val_if_fail (container != NULL, FALSE); + g_return_val_if_fail (container->view_widget == NULL, FALSE); + + comp = container_activate_component (container, "bonobo-object:image-x-pdf"); + if (!comp || !(object = comp->server)) { + gnome_error_dialog (_("Could not launch bonobo object.")); + return FALSE; + } + + CORBA_exception_init (&ev); + persist = GNOME_Unknown_query_interface ( + gnome_object_corba_objref (GNOME_OBJECT (object)), + "IDL:GNOME/PersistStream:1.0", &ev); + + if (ev._major != CORBA_NO_EXCEPTION || + persist == CORBA_OBJECT_NIL) { + gnome_error_dialog ("Panic: component is well broken."); + return FALSE; + } + + stream = gnome_stream_fs_open (name, GNOME_Storage_READ); + + if (stream == NULL) { + char *err = g_strconcat (_("Could not open "), name, NULL); + gnome_error_dialog_parented (err, GTK_WINDOW(container->app)); + g_free (err); + return FALSE; + } + + GNOME_PersistStream_load (persist, + (GNOME_Stream) gnome_object_corba_objref (GNOME_OBJECT (stream)), &ev); + + zoom_set (container); + + GNOME_Unknown_unref (persist, &ev); + CORBA_Object_release (persist, &ev); + CORBA_exception_free (&ev); + return TRUE; + } + + static void + set_ok (GtkWidget *widget, gboolean *dialog_result) + { + *dialog_result = TRUE; + gtk_main_quit (); + } + + static guint + file_dialog_delete_event (GtkWidget *widget, GdkEventAny *event) + { + gtk_main_quit (); + return TRUE; + } + + static void + container_open_cmd (GtkWidget *widget, Container *container) + { + GtkFileSelection *fsel; + gboolean accepted = FALSE; + + fsel = GTK_FILE_SELECTION (gtk_file_selection_new (_("Load file"))); + gtk_window_set_modal (GTK_WINDOW (fsel), TRUE); + + gtk_window_set_transient_for (GTK_WINDOW (fsel), + GTK_WINDOW (container->app)); + + /* Connect the signals for Ok and Cancel */ + gtk_signal_connect (GTK_OBJECT (fsel->ok_button), "clicked", + GTK_SIGNAL_FUNC (set_ok), &accepted); + gtk_signal_connect (GTK_OBJECT (fsel->cancel_button), "clicked", + GTK_SIGNAL_FUNC (gtk_main_quit), NULL); + gtk_window_set_position (GTK_WINDOW (fsel), GTK_WIN_POS_MOUSE); + + /* + * Make sure that we quit the main loop if the window is destroyed + */ + gtk_signal_connect (GTK_OBJECT (fsel), "delete_event", + GTK_SIGNAL_FUNC (file_dialog_delete_event), NULL); + + /* Run the dialog */ + gtk_widget_show (GTK_WIDGET (fsel)); + gtk_grab_add (GTK_WIDGET (fsel)); + gtk_main (); + + if (accepted) { + char *name = gtk_file_selection_get_filename (fsel); + + if (name [strlen (name)-1] != '/') { + char *fname = g_strdup (name); + if (container->view_widget) /* any sort of MDI sucks :-] */ + container = container_new (fname); + else + open_pdf (container, fname); + g_free (fname); + } else { + GtkWidget *dialog; + dialog = gnome_message_box_new ("Can't open a directory", + GNOME_MESSAGE_BOX_ERROR, + GNOME_STOCK_BUTTON_OK, NULL); + gnome_dialog_set_parent (GNOME_DIALOG (dialog), + GTK_WINDOW (container->app)); + gnome_dialog_run (GNOME_DIALOG (dialog)); + } + } + + gtk_widget_destroy (GTK_WIDGET (fsel)); + } -static gint -doc_config_event (GtkWidget *widget, void *ugly) + static void + container_destroy (Container *cont) + { + containers = g_list_remove (containers, cont); + gtk_widget_destroy (cont->app); + g_free (cont); + if (!containers) + gtk_main_quit (); + } + + static void + container_close_cmd (GtkWidget *widget, Container *cont) + { + container_destroy (cont); + } + + static void + container_exit_cmd (void) + { + while (containers) + container_destroy ((Container *)containers->data); + } + + /* + * Enforces the containers zoom factor. + */ + static void + zoom_set (Container *container) + { + g_return_if_fail (container != NULL); + g_return_if_fail (container->component != NULL); + + gnome_view_frame_set_zoom_factor (container->component->view_frame, + container->zoom); + } + + static void + zoom_in_cmd (GtkWidget *widget, Container *container) + { + g_return_if_fail (container != NULL); + if (container->zoom < 180.0) { + container->zoom *= 1.4; + zoom_set (container); + } + } + + static void + zoom_out_cmd (GtkWidget *widget, Container *container) + { + g_return_if_fail (container != NULL); + if (container->zoom > 10.0) { + container->zoom /= 1.4; + zoom_set (container); + } + } +} + +static void +container_set_view (Container *container, Component *component) { - DOC_ROOT *doc = hack_global; - - g_return_val_if_fail (doc, FALSE); - g_return_val_if_fail (doc->magic == DOC_ROOT_MAGIC, FALSE); - - if (doc->pixmap) - gdk_pixmap_unref(doc->pixmap); - - doc->pixmap = gdk_pixmap_new(widget->window, - widget->allocation.width, - widget->allocation.height, - -1); - - gdk_color_white (gtk_widget_get_default_colormap(), &doc->paper); - doc->out = new GOutputDev (doc->pixmap, doc->paper); - -/* gdk_draw_rectangle (doc->pixmap, - widget->style->white_gc, - TRUE, - 0, 0, - widget->allocation.width, - widget->allocation.height);*/ - printf ("Configured...\n"); - return TRUE; + GnomeViewFrame *view_frame; + GtkWidget *view_widget; + + /* + * Create the remote view and the local ViewFrame. + */ + view_frame = gnome_client_site_new_view (component->client_site); + component->view_frame = view_frame; + + /* + * Set the GnomeUIHandler for this ViewFrame. That way, the + * embedded component can get access to our UIHandler server + * so that it can merge menu and toolbar items when it gets + * activated. + */ + gnome_view_frame_set_ui_handler (view_frame, container->uih); + + /* + * Embed the view frame into the application. + */ + view_widget = gnome_view_frame_get_wrapper (view_frame); + container->view_widget = view_widget; + container->component = component; + + /* + * Show the component. + */ + gtk_scrolled_window_add_with_viewport (container->scroll, view_widget); + + /* + * Activate it ( get it to merge menus etc. ) + */ + gnome_view_frame_view_activate (view_frame); + + gtk_widget_show_all (GTK_WIDGET (container->scroll)); } -static gint -doc_redraw_event (GtkWidget *widget, void *ugly) +static GnomeObjectClient * +container_launch_component (GnomeClientSite *client_site, + GnomeContainer *container, + char *component_goad_id) { - DOC_ROOT *doc = hack_global; - - g_return_val_if_fail (doc, FALSE); - g_return_val_if_fail (doc->magic == DOC_ROOT_MAGIC, FALSE); - - if (doc->out && doc->pdf) { - printf ("There are %d pages\n", doc->pdf->getNumPages()); - - doc->pdf->displayPage(doc->out, 1, 72, 0, gTrue); - gdk_draw_pixmap (widget->window, - widget->style->white_gc, - doc->pixmap, - 0, 0, - 0, 0, - widget->allocation.width, - widget->allocation.height); - - } else - printf ("Null pointer error %p %p\n", doc->out, doc->pdf); - - return FALSE; + GnomeObjectClient *object_server; + + /* + * Launch the component. + */ + object_server = gnome_object_activate_with_goad_id ( + NULL, component_goad_id, GOAD_ACTIVATE_SHLIB, NULL); + + if (object_server == NULL) + return NULL; + + /* + * Bind it to the local ClientSite. Every embedded component + * has a local GnomeClientSite object which serves as a + * container-side point of contact for the embeddable. The + * container talks to the embeddable through its ClientSite + */ + if (!gnome_client_site_bind_embeddable (client_site, object_server)) { + gnome_object_unref (GNOME_OBJECT (object_server)); + return NULL; + } + + /* + * The GnomeContainer object maintains a list of the + * ClientSites which it manages. Here we add the new + * ClientSite to that list. + */ + gnome_container_add (container, GNOME_OBJECT (client_site)); + + return object_server; } -static GBool -loadFile(GString *fileName) +/* + * Use query_interface to see if `obj' has `interface'. + */ +static gboolean +gnome_object_has_interface (GnomeObject *obj, char *interface) { - DOC_ROOT *doc = new DOC_ROOT(); - char s[20]; - char *p; - - hack_global = doc; - - doc->magic = DOC_ROOT_MAGIC; - // open PDF file - doc->pdf = new PDFDoc(fileName); - if (!doc->pdf->isOk()) { - delete doc->pdf; - delete doc; - return gFalse; - } + CORBA_Environment ev; + CORBA_Object requested_interface; + + CORBA_exception_init (&ev); + + requested_interface = GNOME_Unknown_query_interface ( + gnome_object_corba_objref (obj), interface, &ev); + + CORBA_exception_free (&ev); - g_assert (doc->pdf->getCatalog()); - - doc->toplevel = gnome_app_new ("gpdf", "gpdf"); - gtk_window_set_policy(GTK_WINDOW(doc->toplevel), 1, 1, 0); - gtk_window_set_default_size (GTK_WINDOW(doc->toplevel), 600, 400); - doc->table = GTK_WIDGET (gtk_table_new (0, 0, 0)); - doc->appbar = GNOME_APPBAR (gnome_appbar_new (FALSE, TRUE, - GNOME_PREFERENCES_USER)); - gnome_app_set_statusbar (GNOME_APP (doc->toplevel), - GTK_WIDGET (doc->appbar)); - gnome_app_set_contents (GNOME_APP (doc->toplevel), doc->table); - gnome_app_create_menus_with_data (GNOME_APP (doc->toplevel), main_menu, doc); - gnome_app_install_menu_hints(GNOME_APP (doc->toplevel), main_menu); - - doc->pixmap = NULL; - doc->area = GTK_DRAWING_AREA (gtk_drawing_area_new ()); - gtk_signal_connect (GTK_OBJECT(doc->area),"configure_event", - (GtkSignalFunc) doc_config_event, doc); - gtk_signal_connect (GTK_OBJECT (doc->area), "expose_event", - (GtkSignalFunc) doc_redraw_event, doc); - - gtk_table_attach (GTK_TABLE (doc->table), GTK_WIDGET (doc->area), - 0, 1, 1, 2, - GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, - 0, 0); - - gtk_widget_show_all (doc->toplevel); - - return gTrue; + if (!CORBA_Object_is_nil(requested_interface, &ev) && + ev._major == CORBA_NO_EXCEPTION) + { + /* Get rid of the interface we've been passed */ + CORBA_Object_release (requested_interface, &ev); + return TRUE; + } + + return FALSE; } -/*static void displayPage(int page1, int zoom1, int rotate1) { - char s[20]; +extern "C" { + static Component * + container_activate_component (Container *container, char *component_goad_id) + { + Component *component; + GnomeClientSite *client_site; + GnomeObjectClient *server; + + /* + * The ClientSite is the container-side point of contact for + * the Embeddable. So there is a one-to-one correspondence + * between GnomeClientSites and GnomeEmbeddables. */ + client_site = gnome_client_site_new (container->container); + + /* + * A GnomeObjectClient is a simple wrapper for a remote + * GnomeObject (a server supporting GNOME::Unknown). + */ + server = container_launch_component (client_site, container->container, + component_goad_id); + if (server == NULL) { + char *error_msg; + + error_msg = g_strdup_printf (_("Could not launch Embeddable %s!"), + component_goad_id); + gnome_warning_dialog (error_msg); + g_free (error_msg); + + return NULL; + } + + /* + * Create the internal data structure which we will use to + * keep track of this component. + */ + component = g_new0 (Component, 1); + component->container = container; + component->client_site = client_site; + component->server = server; + + container_set_view (container, component); - // check for document - if (!doc) - return; + return component; + } + + static void + filenames_dropped (GtkWidget * widget, + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *selection_data, + guint info, + guint time, + Container *container) + { + GList *names, *tmp_list; + + names = gnome_uri_list_extract_filenames ((char *)selection_data->data); + tmp_list = names; + + while (tmp_list) { + const char *fname = (const char *)tmp_list->data; - // busy cursor - if (win) - win->setBusyCursor(gTrue); + if (fname) { + if (container->view_widget) + container = container_new (fname); + else + open_pdf (container, fname); + } - // new page/zoom/rotate values - page = page1; - zoom = zoom1; - rotate = rotate1; + tmp_list = g_list_next (tmp_list); + } + } +} - // initialize mouse-related stuff - linkAction = NULL; - win->setDefaultCursor(); - linkLabel->setText(NULL); - selectXMin = selectXMax = 0; - selectYMin = selectYMax = 0; - lastDragLeft = lastDragTop = gTrue; +static void +container_create_menus (Container *container) +{ + GnomeUIHandlerMenuItem *menu_list; - // draw the page - doc->displayPage(out, page, zoomDPI[zoom - minZoom], rotate, gTrue); - layoutCbk(win); + gnome_ui_handler_create_menubar (container->uih); - // update page number display - sprintf(s, "%d", page); - pageNumText->setText(s); + /* + * Create the basic menus out of UIInfo structures. + */ + menu_list = gnome_ui_handler_menu_parse_uiinfo_list_with_data (container_main_menu, container); + gnome_ui_handler_menu_add_list (container->uih, "/", menu_list); + gnome_ui_handler_menu_free_list (menu_list); +} - // back to regular cursor - win->setBusyCursor(gFalse); - }*/ +static void +container_create_toolbar (Container *container) +{ + GnomeUIHandlerToolbarItem *toolbar; + + gnome_ui_handler_create_toolbar (container->uih, "pdf"); + toolbar = gnome_ui_handler_toolbar_parse_uiinfo_list_with_data (container_toolbar, container); + gnome_ui_handler_toolbar_add_list (container->uih, "/", toolbar); + gnome_ui_handler_toolbar_free_list (toolbar); +} + +static Container * +container_new (const char *fname) +{ + Container *container; + static GtkTargetEntry drag_types[] = + { + { "text/uri-list", 0, 0 }, + }; + static gint n_drag_types = sizeof (drag_types) / sizeof (drag_types [0]); + + container = g_new0 (Container, 1); + + container->app = gnome_app_new ("pdf-viewer", + "GNOME PDF viewer"); + container->zoom = 86.0; + + gtk_drag_dest_set (container->app, + GTK_DEST_DEFAULT_ALL, + drag_types, n_drag_types, + GDK_ACTION_COPY); + + gtk_signal_connect (GTK_OBJECT(container->app), + "drag_data_received", + GTK_SIGNAL_FUNC(filenames_dropped), (gpointer)container); + + gtk_window_set_default_size (GTK_WINDOW (container->app), 600, 600); + gtk_window_set_policy (GTK_WINDOW (container->app), TRUE, TRUE, FALSE); + + container->container = gnome_container_new (); + container->view_widget = NULL; + container->scroll = GTK_SCROLLED_WINDOW (gtk_scrolled_window_new (NULL, NULL)); + gtk_scrolled_window_set_policy (container->scroll, GTK_POLICY_AUTOMATIC, + GTK_POLICY_AUTOMATIC); + gnome_app_set_contents (GNOME_APP (container->app), GTK_WIDGET (container->scroll)); + + /* + * Create the GnomeUIHandler object which will be used to + * create the container's menus and toolbars. The UIHandler + * also creates a CORBA server which embedded components use + * to do menu/toolbar merging. + */ + container->uih = gnome_ui_handler_new (); + gnome_ui_handler_set_app (container->uih, GNOME_APP (container->app)); + + container_create_menus (container); + container_create_toolbar (container); + + gtk_widget_show_all (container->app); + + if (fname) + if (!open_pdf (container, fname)) { + container_destroy (container); + return NULL; + } + + containers = g_list_append (containers, container); + + gtk_widget_show_all (container->app); + + return container; +} int -main (int argc, char *argv []) +main (int argc, char **argv) { + CORBA_Environment ev; + CORBA_ORB orb; char **view_files = NULL; - int lp; - - gnome_init_with_popt_table ( - "gpdf", "0.1", argc, argv, - gpdf_popt_options, 0, &ctx); + int i; + + CORBA_exception_init (&ev); - initParams (xpdfConfigFile); /* Init font path */ + gnome_CORBA_init_with_popt_table ("PDFViewer", "0.0.1", + &argc, argv, + gpdf_popt_options, 0, &ctx, + GNORBA_INIT_SERVER_FUNC, &ev); + + CORBA_exception_free (&ev); + + orb = gnome_CORBA_ORB (); + + if (bonobo_init (orb, NULL, NULL) == FALSE) + g_error (_("Could not initialize Bonobo!\n")); + bonobo_activate (); view_files = poptGetArgs (ctx); + /* Load files */ + i = 0; if (view_files) { - for (lp=0;view_files[lp];lp++) { - GString *name = new GString (view_files[lp]); - if (!name || !loadFile(name)) - printf ("Error loading '%s'\n", view_files[lp]); - } - } else { - printf ("Need filenames...\n"); - exit (0); + for (i = 0; view_files[i]; i++) + container_new (view_files[i]); } - + if (i == 0) + container_new (NULL); + poptFreeContext (ctx); gtk_main (); - - freeParams(); - - /* Destroy files */ + + return 0; }